Great Plains 3P806NT User Manual

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Page 1

Table of Contents Main Box Rates

Manufacturing, Inc.

www.greatplainsmfg.com

Seed, Native Grass, Small Seeds and Fertilizer Rate Charts

for the 3P806NT 3-Point 8-Foot No-Till Drill

The following pages are to assist in the proper setting of seeding rates for the 8-foot (2.5 m) no-till drill. The rates indicated in the charts are approximate. To assure the most accurate seeding, it is recommended that the drill be calibrated for the desired seed at the time of planting.

ORIGINAL INSTRUCTIONS

Page 2

Great Plains Manufacturing, Inc. Cover Main Box Rates ii

Introduction ..................................................................1

Models Covered .............................................................1

Document Family ...........................................................1

Material Rates Overview ................................................1

Calibration Overview ......................................................2

Calibration Crank Storage .......................................... 2

Using Calibration Crank..............................................2

Main and Dual Box Seed Rate.....................................3

Setting Drive Type......................................................3

Main and Dual Box Seed Rate Handle....................... 4

Position Seed Cup Doors ........................................... 4

Main/Dual Seed Row Shutoff .....................................4

Reading a Seed Rate Chart .......................................5

Main/Dual Box Seed Rate Calibration........................6

Rate Charts, Main Seed Box..........................................8

Alfalfa (Medicago sativa) ............................................ 8

Bahia Grass (Paspalum notatum) ..............................8

Barley (Hordeum vulgare) ..........................................8

Buckwheat (Fagopyrum esculentum).........................9

Buffalograss (Buchloe dactyloides) ............................ 9

Bermuda Grass (Cynodon dactylon) .......................... 9

K-31 Fescue (Festuca).............................................10

Flax (Linum usitatissimum) or Sudan

(Sorghum bicolor subsp. drummondii)..................10

Eastern Gamma Grass - Pete

(Tripsacum dactyloides) .......................................10

Kentucky Blue Grass (Poa pratensis).......................11

Millet (Pennisetum glaucum, Setaria italica,

Panicum miliaceum, Eleusine coracana)..............11

Milo (Sorghum).........................................................11

Oats (Avena sativa)..................................................12

Orchard Grass Potomac (Dactylis glomerata).......... 12

Peas (Pisum sativum)...............................................12

Pinto Beans (Phaseolus vulgaris).............................13

Rape (Brassica napus).............................................13

Rice, Long Grain (Oryza sativa indica)..................... 13

Rice, Short Grain (Oryza sativa japonica,

Oryza sativa sinica) ..............................................14

Rye (Secale cereale)................................................14

Perennial Rye Grass - Palmer

(Lolium perenne, Lolium multiflorum) ...................14

Soybeans (Glycine max) ..........................................15

Sunflower (Helianthus annuus) ................................15

Tiffany Teff, Coated (Erogrostis tef) .........................15

Wheat (Triticum)....................................................... 16

Wheatgrass (Pascopyrum smithii,

Agropyron elongatum).......................................... 16

Native Grass Rate ...................................................... 17

Setting Native Grass Seed Rate .................................. 17

Native Grass Rate Calibration ..................................... 17

Native Grass Meter Shaft Rates .................................. 20

Standard Shaft Rates...............................................20

Shaft Rates with Seed Rate Reduction.................... 20

Seed Lubricant ..................................................... 20

Brome Grass Seeding.................................................. 21

Brome Rate Charts .................................................. 23

Small Seeds Rate ....................................................... 24

Small Seeds Rate Calibration ...................................... 24

Small Seeds Row Shut-Off .................................. 26

Small Seeds Rate Charts............................................. 27

Alfalfa, Red Alsike, Crimson Clover ..............................27

Kentucky Bluegrass,

Fescue, Annual Rye Grass.......................................27

Bermuda, Red Top, Lespedeza Unhulled,

Sercia, Sand, Weeping Love Grass.......................... 27

Red & Sweet Clover, Lespedeza Hulled....................... 27

Orchard Grass ..............................................................27

Millet, Reed Canary ......................................................28

Ladino Clover, Canary Grass,

Timothy, Canola........................................................ 28

Birdsfoot, Trefoil, Sudan ...............................................28

Fertilizer Rate ............................................................. 29

Setting Fertilizer Rate .................................................. 29

Fertilizer Rate Chart..................................................... 29

Fertilizer Rates in Pounds per Acre .............................. 29

Metric Fertilizer Rate Chart ...........................................29

Adjusting for Density .................................................... 30

Density Conversion Charts ...................................... 30

U.S. Customary Units ...................................................30

Metric ............................................................................ 30

Fertilizer Rate Calibration......................................... 31

Appendix..................................................................... 33

Metric Rate Charts, Main Seed Box............................. 33

Metric Rate Charts, Small Seeds Box.......................... 42

Metric Native Grass Rates ........................................... 44

Metric Native Grass Shaft Rates.................................. 45

Brome Seed Rates, Metric ....................................... 46

Great Plains Manufacturing, Inc. provides this publication “as is” without warranty of any kind, either expressed or implied. While every precaution has been taken in the preparation of this manual, Great Plains Manufacturing, Inc. assumes no responsibility for errors or omissions. Neither is any liability assumed for damages resulting from the use of the information contained herein. Great Plains Manufacturing, Inc. reserves the right to revise and improve its products as it sees fit. This publication describes the state of this product at the time of its publication, and may not reflect the product in the future.

2011-10-21 Cover Main Box Rates 151-143B

Trademarks of Great Plains Manufacturing, Inc. include: Singulator Plus, Swath Command, Terra-Tine.

Registered Trademarks of Great Plains Manufacturing, Inc. include:

Air-Pro, Clear-Shot, Great Plains, Land Pride, MeterCone, Nutri-Pro, Seed-Lok, Solid Stand, Whirlﬁlter, Yield-Pro.

Brand and Product Names that appear and are owned by others are trademarks of their respective owners.

Printed in the United States of America

Page 3

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates 1

Introduction

This manual is your guide to drill adjustments for achieving speciﬁc seed populations.

Although some setup, operation and adjustment material herein is repeated from the drill Operator Manual, you need to be thoroughly familiar with drill operations and adjustments before applying this Seed Rate Manual and its table data.

Models Covered

This rate manual applies to drill models:

3P806NT-1375 13-row 7.5-inch (19.1 cm)

Document Family

151-143M Operator Manual

151-143P Parts Manual

151-143B Seed Rate Manual (this document)

Figure 1

3P806NT No-Till Drill

28357

Material Rates Overview

Details of seed and fertilizer rate setting are found in the Adjustments section of the Operator Manual, and rely on data from this Seed Rate Manual.

Rate setting controls are different for each box. Some boxes have more than one control.

Main Box

Dual Seed

(page 3)

Rate Range

Fine Rate Rate Handle Driver/Driven

Cup Adjustment Door Handle

Small Seeds

(page 24)

Rate Handle

All chart rates, for all boxes, are approximate. Great Plains strongly recommends calibration of each box to the material to be applied.

Native Grass

(page 17)

Seed Rate Reduction

Fertilizer

(page 29)

Rate KnobCoarse Rate Drive Type Drive Type

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 4

2 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Calibration Overview

Detailed calibration steps vary with each box, see: “Main/Dual Box Seed Rate Calibration” on page 6, “Fertilizer Rate Calibration” on page 31, “Native Grass Rate Calibration” on page 17, and “Small Seeds Rate Calibration” on page 24,

Some general information applies to all boxes, and is not repeated in those pages referenced above.

Calibrate with Drill Raised

Perform the calibration with the drill hitched and raised. Install lift-assist cylinder lock(s). Calibration with the drill lowered is not recommended, as the drive tires in ground contact prevent drive operation.

Calibrate for1⁄

The number of revolutions per area is:

revolutions for Full Acre 656 1170 1/10th Acre Full Hectare 1622 2890 1/10th Hectare

Crank counts below 10 are not recommended. Sample sizes may be too low, and fractional crank turns introduce more error.

Acre or Hectare

Crank Tire

65.6 117

162 289

32341

Calibration Crank Storage

Refer to Figure 2

The calibration crank is found at the top front frame, left of center, pinned to a stob on a 3-point weldment.

Note: The retaining pin at the stob can also secure the

crank to the jackshaft.

Using Calibration Crank

Place the hex socket of the crank on the right end of the main jackshaft .

Operate the crank clockwise

A wide range of cranking speeds produce accurate calibrations. For reference, at 6 mph (10 kph) ﬁeld speed, jackshaft rpm is 65 (about 1 revolution per second).

Figure 2

Calibration Crank

28410

Check Affected Boxes

Empty any boxes not being calibrated or remove a drive chain to prevent undesired meter operation. Alternatively, set rate handles to zero.

151-143B Table of Contents Main Box Rates 2011-10-21

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates 3

83P806NT

2011 09 23

Rate Charts, Main Seed Box

Charts n U S customary units Metric charts begin on page 33

Alfalfa (Medicago sativa)

Bahia Grass (Paspalum notatum)

Barley (Hordeum vulgare)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

(based on 60 pounds/bushel)

7 5 in

04667911215182125283236394347505457616466

Drive Type: 2 Seed Rate n Pounds Per Acre

7 5 in

0 9 5 14 19 24 30 37 44 51 58 66 73 81 89 96 104 111 118 125 131 136

Dr ve Type: 3 Seed Rate in Pounds Per Acre

7 5 n

0 15 22 29 37 46 55 65 75 86 97 108 119 130 141 151 162 171 180 189 196

Drive Type: 4 Seed Rate in Pounds Per Acre

7 5 in

0 25 35 47 60 75 90 106 123 140 158 176 194 212 230 247 264 279 294 308 320

32291C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

(based on 40 pounds bushe )

7 5 in

0 2 2 31 4 5 6 3 8 5 11 14 17 20 23 27 30 33 37 40 43 46 48 50 52

Drive Type: 2 Seed Rate in Pounds Per Acre

7 5 in

0 4 4 64 9 3 13 18 23 28 35 41 48 55 62 69 76 82 88 94 99 104 107

Drive Type: 3 Seed Rate n Pounds Per Acre

7 5 in

0 6 6 10 14 20 26 34 43 52 62 72 82 93 103 113 123 132 141 149 156 161

Drive Type: 4 Seed Rate in Pounds Per Acre

7 5 n

0 11 16 23 32 43 56 70 85 101 117 134 151 168 185 201 216 230 243 254 263

32292C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

(based on 51 pounds/bushel)

7 5 in

04763841114172024273135394245495154565758

Drive Type: 2 Seed Rate in Pounds Per Acre

7 5 in

01013172228354249566472798693100105110115118120

Drive Type: 3 Seed Rate in Pounds Per Acre

7 5 in

0 14 19 26 34 43 52 62 72 83 94 105 116 126 137 147 156 165 173 180 186

Drive Type: 4 Seed Rate in Pounds Per Acre

7 5 in

0 22 32 43 56 70 85 101 118 135 153 171 189 206 223 239 255 269 282 293 303

32293C

Main and Dual Box Seed Rate

Accurately obtaining the desired seed population requires four steps:

1. Setting Drive Type gearbox (from chart)

2. Setting initial Seed Rate Handle (from chart)

3. Positioning Seed Cup Door (by seed type)

4. Calibration: checking predicted seeding rate

Seed rate charts begin on page 8. The charts list proper Drive Type and seed rate handle settings for various seeds and seeding rates.

The seed rate charts are based on cleaned, untreated seed of average size and test weight. The charts are based on factory-supplied 5.70-8 8-Ply tires inﬂated to factory speciﬁcation. Many factors affect seeding rates including foreign material, seed treatment, seed size, seed weight, ﬁeld conditions, tire pressure and test weight.

Use the charts only as a starting point. Minor adjustments are commonly required. Set and check the seeding rate using the procedures beginning on page 6, then readjust the rate as necessary.

32342

Setting Drive Type

Refer to Figure 3

The charts list Drive Types as 1, 2, 3 or 4. Drive Type is determined by the handle on the gearbox cover, at left front of drill.

Move the handle until the Drive Type number appears in the handle window .

For correct Drive Type, refer to the charts in the Seed Rate manual. Each Drive Type corresponds to a speciﬁc gear ratio.

Drive Type Relative Speed

1 Slowest

Note: The gear box is shared between Main Seed Box

2011-10-21 Table of Contents Main Box Rates 151-143B

2 2.06 times faster than Type 1

3 3.08 times faster than Type 1

4 5.02 times faster than Type 1

and the optional Dual Seed and Native Grass boxes. It is possible to plant from both boxes at the same time only if their settings use the same Drive Type.

32790

Figure 3

Gearbox Handle Adjustment

28414

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4 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Main and Dual Box Seed Rate Handle

Refer to Figure 4

There is a single rate handle for the entire box. There are separate handles for the standard main seed box and the optional dual seed box.

The seed rate handle controls the percent engagement of the seed sprocket in each seed cup. The initial setting of the handle is given by the Seed Rate Chart.

Note: You can temporarily stop main seed ﬂow (such as

for adjusting level/depth) with handle set to zero.

To set the handle:

1. Loosen wing nut under handle.

2. Move indicator from current setting to about 10 higher than the new desired value from calibration or the Seed Rate Chart, then back to the desired value.

3. Tighten wing nut.

Figure 4

Main/Dual Box Seed Rate Handle

32772

Position Seed Cup Doors

Refer to Figure 5, which depicts the seed cup door handle in position .

At each main seed box seed tube, adjust the seed cup door handle for the seed size.

The handle has three normal operating position detents:

(top detent) is for the smallest seeds. Use it for wheat and similar small seeds.

(middle detent) is for larger seeds. Use it for soybeans and similar larger seeds.

(bottom detent) is for oversize or fragile seeds. If you experience excessive cracking with setting , use setting .

Note: Handle position is used for clean-out, not

2 3

planting. If set to this position with seed loaded, it may be difﬁcult to reset it to a normal operating position.

Figure 5

Seed Cup Door Handle

26211

Main/Dual Seed Row Shutoff

If alternate row spacings are desired, the unused rows can be shut off with optional plugs.

1. Clean-out seed. The seed box must be empty prior to inserting plugs. See “Main Box Clean-Out” in Operator manual.

Refer to Figure 6

2. Insert one plug at each row to shut off. Verify the seed hose path before inserting the plug, as some hoses do not make a strictly vertical drop to their row units.

3. Review seed rate settings prior to planting. Perform calibration calculations with the actual active row count.

151-143B Table of Contents Main Box Rates 2011-10-21

Figure 6

Seed Cup Plug

26279

Page 7

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Main and Dual Box Seed Rate 5

Seed Rate Handle Se

04.76.38.411141720242731

Reading a Seed Rate Chart

1. Find your seed. Charts are in alphabetical order by common North American seed name. Scientiﬁc names are provided. Charts covering more than one seed may be out of order. For Sudan, see Flax.

The example presumes Barley at 60 pounds/acre.

There are multiple chart sections for some seeds, and the rates may overlap. Use the chart where your desired rate is closest to 50 on the Seed Rate Handle scale.

In the example, this would be Drive Type 2.

If your seed is not listed, ﬁnd one with similar size, shape and density. Density of the test seed used to develop the chart appears under the right end of the handle scale values.

Barley (Hordeum vulgare)

10 15 20 25 30 35 40 45 50 55

Type: 1 Seed Rate in Pounds P

32342

76.38.41114172024273135

Type: 2 Seed Rate in Pounds P

013172228354249566472

065707580859095100

Acre

94245495154565758

(based on 51 pounds/bushel)

32342

2. Note the Drive Type for the chart rate row chosen (at left above rates). This number (1-4) is used to determine the gearbox handle setting. See page 3.

In the example, this is

Drive Type 2

3. Locate your desired seed rate in the table row for your row spacing.

In the example the rate closest to 60 is:

4. Note the Seed Rate Handle setting required, at the top of the column at that seed rate. This is the initial value set on the Seed Rate Handle. See page 4.

In the example, start with a handle setting of:

50 (or interpolate to 48),

and calibrate. When a target rate falls halfway between handle settings, you can adjust the handle slightly to compensate, as in the example, but calibration is apt to result in further adjustment anyway.

Drive Type: 2 Seed Rate in Pou

32342

010131722283542495664

Drive Type: 3 Seed Rate in Pou

.4 11 14 17 20 24 27 31 35 39 42

32342

Seed Rate in Pounds Per Acre

722283542495664727986

Seed Rate Handle Setting

15 20 25 30 35 40 5 50 55 60 65

Seed Rate in Pounds Per Acre

8.411141720242731353942

32342

Seed Rate in Pounds Per Acre

17 22 28 35 42 49 56 64 72 79 86

Seed Rate in Pounds Per Acre

2011-10-21 Table of Contents Main Box Rates 151-143B

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6 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Main/Dual Box Seed Rate Calibration

Differences will exist between the tested seed and ﬁeld conditions used to generate the Seed Rate Charts, and your seed and conditions. To accurately achieve your target population, Great Plains recommends calibrating.

Due to the large number of crank revolutions per acre (310 or 569) and per hectare (766 or 1405), a practical calibration is a simulation of1⁄

acre or1⁄

hectare.

1. Estimate the sample sizes.

TargetRate

RateSample

SamplePerRow

ExpectedSample SamplePerRow SampledRows×=

-----------------------------

RateSample

-----------------------------------

RowCount

Example: You want to apply barley at a TargetRate of 60 pounds per acre. RateSample is:

------

6.0

Example: the drill has 13 rows. SamplePerRow is:

6.0

0.46

------- -

Example: 3 rows are to be used in the sampling.

ExpectedSample is:

1.38 0.46 3×=

The expected sample net weight is 1.2 lb.

2. To perform this calibration, you need a scale that is accurate at the aggregate sample size, and three (3) light containers, each capable of holding the expected SamplePerRow. Record the empty container weights.

3. Raise the drill so the gauge wheel is out of ground contact.

4. Remove the calibration crank from its storage stob. Store the retaining pin on the stob.

5. Place the hex socket of the crank on the end of the gearbox input jackshaft (see page 2).

6. Pull the seed hoses off the top of three opener seed tubes, at the top of the openers. Place the hoses into each sample container.

7. If not already done, set the Drive Type, Seed Rate Handle and Seed Cup Doors across the drill. If any optional seed boxes are loaded, disconnect their drive or set their rate to zero (unless you are simultaneously calibrating multiple boxes).

8. Load seed above the rows to be sampled. Load well more than the expected sample size.

9. Rotate the crank or tire several turns to ensure that the drives and seed cups are engaged, working properly, free from foreign material, and that seed is ﬂowing steadily from the meters. Stop.

10. Note the current reading of the acremeter, unless you do not plan to rely on it for the calibration.

11. Empty the sample containers back into the seed box, and place them back under the three hoses to gather metered seed.

Example: 3 containers, each weighing 0.5lb:

ContainerWeight = 1.5 lb

Crushing Hazard:

Install lift cylinder lock(s) on a raised drill.

Note: You can also rotate the tire, the gauge wheel

jackshaft or the gear box jackshaft. If using a non-standard rotating/cranking point, rely on the acremeter to determine the area simulated.

Example: you desire to plant barley at:

60 pounds per acre

which is between

45 and 50 on the Drive Type 2 chart. Use an initial Seed Rate Handle (InitialHandle) scale setting of:

151-143B Table of Contents Main Box Rates 2011-10-21

Page 9

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Main and Dual Box Seed Rate 7

12. Turn crank at a steady rate for the number of turns speciﬁed on page 2, or until one tenth acre or hectare is tallied on acremeter. While turning, check that cups have ample seed coming into them.

13. Weigh metered seed. Subtract initial weight of container(s).

NetWeight GrossWeight ContainerWeight–=

14. Divide the net seed weight by three. Multiply by number of openers on your drill, and then by ten, to determine the total of pounds per acre seeded.

NetWeight

MeasuredRate

--------------------------------------

SampledRows

OpenerCount× 10×=

15. The Seed Rate Handle scale is a percentage of meter opening, and its effect is linear near scale center. Calculate a new scale setting based on the test.

Set the Seed Rate Handle to the new scale setting.

16. You may want to repeat calibration procedure at the new setting if your results varied greatly from the Seed Rate Chart, or if you must operate near the ends of the Seed Rate handle scale (0-20 or 90-100).

TargetRate

NewScale

-------------------------------------- -

MeasuredRate

PreviousScale×=

3P806NT crank rotations for1⁄

acre:

Example: the containers weighed a total of

2.98 pounds after test. NetWeight is:

1.48 lbs net

1.48 2.98 1.5–=

Example: MeasuredRate is:

64 lbs/ac

1.48

64.3

-----------

13 10××=

For example: the target rate was 60 lbs/ac, and the initial scale 48: the NewScale setting is:

44.8

------

48×=

17. With calibration complete, store calibration crank, reinstall any removed chains or sprockets and reconnect seed hoses.

18. Check that your tire(s) is(are) properly inﬂated. See “Tire Inﬂation Chart” in Operator manual.

When drilling, check seeding rate by noting acres drilled, amount of seed added to drill and seed level in drill box. If you are seeding more or less than desired, adjust rate slightly to compensate for ﬁeld conditions.

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 10

8 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Rate Charts, Main Seed Box

Charts in U.S. customary units. Metric charts begin on page 33.

Alfalfa (Medicago sativa)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 4.6 6.7 9.1 12 15 18 21 25 28 32 36 39 43 47 50 54 57 61 64 66

Drive Type: 2 Seed Rate in Pounds Per Acre

0 9.5 14 19 24 30 37 44 51 58 66 73 81 89 96 104 111 118 125 131 136

Drive Type: 3 Seed Rate in Pounds Per Acre

015222937465565758697108119130141151162171180189196

Drive Type: 4 Seed Rate in Pounds Per Acre

0 25 35 47 60 75 90 106 123 140 158 176 194 212 230 247 264 279 294 308 320

(based on 60 pounds/bushel)

32291C

Bahia Grass (Paspalum notatum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 2.2 3.1 4.5 6.3 8.5 11 14 17 20 23 27 30 33 37 40 43 46 48 50 52

Drive Type: 2 Seed Rate in Pounds Per Acre

0 4.4 6.4 9.3 13 18 23 28 35 41 48 55 62 69 76 82 88 94 99 104 107

Drive Type: 3 Seed Rate in Pounds Per Acre

0 6.6 10 14 20 26 34 43 52 62 72 82 93 103 113 123 132 141 149 156 161

Drive Type: 4 Seed Rate in Pounds Per Acre

01116233243567085101117134151168185201216230243254263

Barley (Hordeum vulgare)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 4.7 6.3 8.4 11 14 17 20 24 27 31 35 39 42 45 49 51 54 56 57 58

Drive Type: 2 Seed Rate in Pounds Per Acre

01013172228354249566472798693100105110115118120

Drive Type: 3 Seed Rate in Pounds Per Acre

014192634435262728394105116126137147156165173180186

Drive Type: 4 Seed Rate in Pounds Per Acre

0 22 32 43 56 70 85 101 118 135 153 171 189 206 223 239 255 269 282 293 303

(based on 40 pounds/bushel)

32292C

(based on 51 pounds/bushel)

32293C

151-143B Table of Contents Main Box Rates 2011-10-21

Page 11

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Main and Dual Box Seed Rate 9

Rate Charts, Main Seed Box, continued...

Buckwheat (Fagopyrum esculentum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 3.9 5.7 7.9 10 13 16 20 23 27 30 34 37 41 44 47 50 52 54 55 57

Drive Type: 2 Seed Rate in Pounds Per Acre

0 8.0 12 16 22 27 34 41 48 55 62 70 77 84 90 96 102 107 111 114 116

Drive Type: 3 Seed Rate in Pounds Per Acre

015182431394960728597110123136148159170179187192197

Drive Type: 4 Seed Rate in Pounds Per Acre

0 24 30 39 50 64 80 98 118 138 159 180 201 222 241 260 277 292 304 314 320

Buffalograss (Buchloe dactyloides)

(based on 48 pounds/bushel)

32295C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

01.21.92.94.05.36.68.09.4111214151617181920202020

Drive Type: 2 Seed Rate in Pounds Per Acre

02.44.06.08.311141619222528313336383940414141

Drive Type: 3 Seed Rate in Pounds Per Acre

0 4.4 6.4 8.9 12 16 20 24 28 33 37 42 46 50 54 57 60 62 63 63 63

Drive Type: 4 Seed Rate in Pounds Per Acre

0 7.2 10 15 20 26 32 39 46 54 61 68 75 82 88 93 97 101 103 103 103

Bermuda Grass (Cynodon dactylon)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 1.8 3.5 5.3 7.2 9.1 11 13 15 17 19 21 23 25 27 29 31 33 35 36 38

Drive Type: 2 Seed Rate in Pounds Per Acre

03.67.2111519232731353943475155596367717578

Drive Type: 3 Seed Rate in Pounds Per Acre

0 5.7 11 17 22 28 34 40 46 52 58 64 70 76 81 87 92 97 102 107 112

Drive Type: 4 Seed Rate in Pounds Per Acre

0 9.3 18 27 36 46 55 65 75 85 94 104 114 123 132 141 150 159 167 175 182

(based on 23 pounds/bushel)

32296C

(based on 60 pounds/bushel)

32294C

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 12

10 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Rate Charts, Main Seed Box, continued...

K-31 Fescue (Festuca)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 1.9 2.9 4.0 5.2 6.4 7.7 9.0 10 12 13 14 16 17 18 19 20 21 21 22 23

Drive Type: 2 Seed Rate in Pounds Per Acre

0 3.9 5.9 8.2 11 13 16 18 21 24 27 29 32 34 37 39 41 43 44 45 46

Drive Type: 3 Seed Rate in Pounds Per Acre

06.69.3121619232731353943475155586164676970

Drive Type: 4 Seed Rate in Pounds Per Acre

0111520253137445057647077838995100105109112115

Flax (Linum usitatissimum) or Sudan

(Sorghum bicolor subsp. drummondii)

(based on 21 pounds/bushel)

32297C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 4.6 6.8 9.3 12 15 19 22 26 29 33 37 41 44 48 52 55 59 62 65 67

Drive Type: 2 Seed Rate in Pounds Per Acre

0 9.4 14 19 25 31 38 45 53 60 68 76 84 91 99 107 114 121 127 133 139

Drive Type: 3 Seed Rate in Pounds Per Acre

014212937465666768697108118129140150160169179187195

Drive Type: 4 Seed Rate in Pounds Per Acre

0 23 35 47 61 75 91 107 124 141 158 175 193 210 228 244 261 276 291 305 318

Eastern Gamma Grass - Pete

(Tripsacum dactyloides)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

03.85.37.09.011141619212426293134363840414243

Drive Type: 2 Seed Rate in Pounds Per Acre

0 7.9 11 14 18 23 28 33 38 44 49 54 60 65 69 74 78 81 84 86 88

(based on 55 pounds/bushel)

32298C

32299C

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Main and Dual Box Seed Rate 11

Rate Charts, Main Seed Box, continued...

Kentucky Blue Grass (Poa pratensis)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 1.5 2.1 2.9 3.7 4.6 5.6 6.7 7.7 8.8 10 11 12 13 14 15 16 17 17 18 18

Drive Type: 2 Seed Rate in Pounds Per Acre

03.04.45.97.710121416182023252729313334353737

Drive Type: 3 Seed Rate in Pounds Per Acre

04.87.2101215182124273033363942444749515355

Drive Type: 4 Seed Rate in Pounds Per Acre

0 7.9 12 16 20 25 29 34 39 44 49 54 59 63 68 72 76 80 83 87 89

Millet (Pennisetum glaucum, Setaria italica,

Panicum miliaceum, Eleusine coracana)

(based on 23 pounds/bushel)

32300C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 4.8 6.8 9.2 12 15 18 21 25 28 32 35 39 42 46 49 52 55 58 60 62

Drive Type: 2 Seed Rate in Pounds Per Acre

01014192430374351586573808794101107113118123127

Drive Type: 3 Seed Rate in Pounds Per Acre

014202836455565768798109120131141151161170178185191

Drive Type: 4 Seed Rate in Pounds Per Acre

0 22 33 45 59 74 90 107 124 142 160 178 196 213 230 247 262 277 290 301 311

Milo (Sorghum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

04.67.1101417222631364045505560646872757880

Drive Type: 2 Seed Rate in Pounds Per Acre

0 9.4 15 21 28 36 44 54 63 73 83 93 103 113 122 131 140 148 154 160 165

(based on 60 pounds/bushel)

32301C

(based on 60 pounds/bushel)

32302C

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12 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Rate Charts, Main Seed Box, continued...

Oats (Avena sativa)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 1.8 3.1 4.5 6.1 7.8 10 12 14 16 18 20 22 24 26 28 30 32 33 35 36

Drive Type: 2 Seed Rate in Pounds Per Acre

0 3.7 6.3 9.2 13 16 20 24 28 32 37 41 46 50 54 58 62 65 69 71 74

Drive Type: 3 Seed Rate in Pounds Per Acre

0 6.8 10 14 18 24 30 36 43 50 57 64 71 78 84 90 96 101 105 109 111

Drive Type: 4 Seed Rate in Pounds Per Acre

011162230394859708193104115127137147156164171177181

Orchard Grass Potomac (Dactylis glomerata)

(based on 37 pounds/bushel)

32303C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 1.1 1.5 2.0 2.7 3.3 4.1 4.9 5.8 6.7 7.6 8.5 9.4 10 11 12 13 13 14 14 15

Drive Type: 2 Seed Rate in Pounds Per Acre

02.33.14.25.56.98.51012141618192123252627282930

Drive Type: 3 Seed Rate in Pounds Per Acre

03.34.66.17.910121417202225273032353739414344

Drive Type: 4 Seed Rate in Pounds Per Acre

05.47.4101316202428323640454953576164677072

Peas (Pisum sativum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 2.1 5.2 8.7 13 17 21 26 30 35 40 44 49 53 57 61 64 67 70 72 73

Drive Type: 2 Seed Rate in Pounds Per Acre

0 4.4 11 18 26 34 43 53 62 72 81 91 100 109 117 125 132 138 143 147 150

Drive Type: 3 Seed Rate in Pounds Per Acre

0 3.2 12 22 33 45 58 71 84 98 112 125 138 151 163 174 184 192 199 205 209

Drive Type: 4 Seed Rate in Pounds Per Acre

0 5.2 20 36 54 74 94 116 138 160 182 204 225 246 265 283 299 313 325 334 341

(based on 18 pounds/bushel)

32304C

(based on 61 pounds/bushel)

32305C

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Main and Dual Box Seed Rate 13

Rate Charts, Main Seed Box, continued...

Pinto Beans (Phaseolus vulgaris)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

04.16.8101418222732374247525660646871737576

Drive Type: 2 Seed Rate in Pounds Per Acre

0 8.5 14 21 28 37 46 56 65 76 86 96 106 115 124 132 140 146 151 155 157

Drive Type: 3 Seed Rate in Pounds Per Acre

01422314254678195109124139153167180192203213221227231

Drive Type: 4 Seed Rate in Pounds Per Acre

0 23 35 51 68 88 109 131 155 178 203 226 250 272 294 313 331 347 360 369 376

Rape (Brassica napus)

(based on 61 pounds/bushel)

32306C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 4.2 6.2 8.5 11 14 16 19 22 25 28 31 34 37 40 43 46 49 52 54 56

Drive Type: 2 Seed Rate in Pounds Per Acre

0 8.6 13 18 23 28 34 39 45 52 58 64 70 77 83 89 95 101 106 111 116

Drive Type: 3 Seed Rate in Pounds Per Acre

01318253139475665758494104113122131139147154161166

Drive Type: 4 Seed Rate in Pounds Per Acre

0 22 30 40 51 64 77 91 106 122 137 153 169 184 199 214 227 240 252 262 271

Rice, Long Grain (Oryza sativa indica)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

00.93.35.88.311141619212426293133353739404142

Drive Type: 2 Seed Rate in Pounds Per Acre

01.86.7121722283339444954596468727679828587

Drive Type: 3 Seed Rate in Pounds Per Acre

0 3.0 10 18 25 33 40 48 56 63 71 78 85 92 99 106 113 119 125 130 136

Drive Type: 4 Seed Rate in Pounds Per Acre

0 4.9 17 29 41 53 66 78 91 103 115 127 139 151 162 173 183 194 203 213 221

(based on 51 pounds/bushel)

32307C

(based on 47 pounds/bushel)

32308C

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14 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Rate Charts, Main Seed Box, continued...

Rice, Short Grain (Oryza sativa japonica,

Oryza sativa sinica)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

02.54.66.99.312141720232528313336384042444647

Drive Type: 2 Seed Rate in Pounds Per Acre

05.29.5141924303541475258636974798387919497

Drive Type: 3 Seed Rate in Pounds Per Acre

0111621283543515968778594102110117123128133136138

Drive Type: 4 Seed Rate in Pounds Per Acre

01826354557708397111125139153166179190200209217222225

(based on 43 pounds/bushel)

32309C

Rye (Secale cereale)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

03.86.6101418222731364146515661656973767981

Drive Type: 2 Seed Rate in Pounds Per Acre

0 7.8 14 20 28 36 45 55 65 75 85 95 105 115 124 133 142 149 156 162 167

Drive Type: 3 Seed Rate in Pounds Per Acre

01321314254678196111126142157173188202216228240250259

Drive Type: 4 Seed Rate in Pounds Per Acre

0 22 35 50 68 88 109 132 156 181 206 231 257 282 306 329 352 372 391 407 422

Perennial Rye Grass - Palmer

(Lolium perenne, Lolium multiflorum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 2.4 3.6 4.9 6.3 7.9 10 11 13 15 17 19 21 22 24 26 27 29 30 31 31

Drive Type: 2 Seed Rate in Pounds Per Acre

04.97.3101316202327313539424650535659616365

Drive Type: 3 Seed Rate in Pounds Per Acre

010121519242935414754616773798590949799101

Drive Type: 4 Seed Rate in Pounds Per Acre

01619243138475767778899109120129138146153158162164

(based on 57 pounds/bushel)

32310C

(based on 36 pounds/bushel)

32311C

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Main and Dual Box Seed Rate 15

Rate Charts, Main Seed Box, continued...

Soybeans (Glycine max)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

04.06.9101418222631354044495357616467707274

Drive Type: 2 Seed Rate in Pounds Per Acre

0 8.3 14 21 29 37 45 54 63 73 82 91 100 109 117 125 132 139 144 149 152

Drive Type: 3 Seed Rate in Pounds Per Acre

01121314355678093106120133146158170182193203212220228

Drive Type: 4 Seed Rate in Pounds Per Acre

0 18 34 51 70 89 110 131 152 173 195 216 237 258 278 297 314 331 346 359 371

Sunflower (Helianthus annuus)

(based on 58 pounds/bushel)

32312C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

00.31.73.24.86.58.31012141618202223252728303132

Drive Type: 2 Seed Rate in Pounds Per Acre

0 0.6 3.4 6.5 10 13 17 21 25 29 33 37 41 44 48 52 55 58 61 64 66

Drive Type: 3 Seed Rate in Pounds Per Acre

0 2.5 5.4 9.0 13 17 22 27 33 38 44 50 55 61 66 71 76 80 84 88 90

Drive Type: 4 Seed Rate in Pounds Per Acre

04.18.91521283645546372819099108116124131137143147

Tiffany Teff, Coated (Erogrostis tef)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 4.0 6.3 8.8 12 14 18 21 24 28 31 35 39 43 47 51 54 58 62 65 69

Drive Type: 2 Seed Rate in Pounds Per Acre

0 8.3 13 18 24 30 36 43 50 57 65 72 80 88 96 104 112 119 127 134 142

Drive Type: 3 Seed Rate in Pounds Per Acre

012192736455464758697109120132144156167179190202212

Drive Type: 4 Seed Rate in Pounds Per Acre

0 20 32 44 58 73 88 105 122 140 158 177 196 215 235 254 273 292 311 329 346

(based on 28 pounds/bushel)

32313C

(based on 65 pounds/bushel)

32314C

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16 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Rate Charts, Main Seed Box, continued...

Wheat (Triticum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

07.18.9111418222630354045505559646872757880

Drive Type: 2 Seed Rate in Pounds Per Acre

01518232937455363728293103113122131140147154159164

Drive Type: 3 Seed Rate in Pounds Per Acre

01826344455688094108122136150164177190201212222230236

Drive Type: 4 Seed Rate in Pounds Per Acre

0 30 42 56 72 90 110 131 153 176 199 222 245 267 289 309 329 346 362 375 385

Wheatgrass (Pascopyrum smithii,

Agropyron elongatum)

(based on 64 pounds/bushel)

32315C

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Pounds Per Acre

7.5 in

0 0.9 1.7 2.4 3.2 4.0 4.9 5.8 6.6 7.5 8.4 9.3 10 11 12 13 14 14 15 16 16

Drive Type: 2 Seed Rate in Pounds Per Acre

0 1.9 3.4 4.9 6.6 8.3 10 12 14 15 17 19 21 23 25 26 28 29 31 32 33

Drive Type: 3 Seed Rate in Pounds Per Acre

0 3.5 5.3 7.4 10 12 15 17 20 23 25 28 31 33 36 39 41 43 45 47 49

Drive Type: 4 Seed Rate in Pounds Per Acre

05.78.7121620242832374146505559636770747779

(based on 23 pounds/bushel)

32316C

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates 17

Native Grass Rate

Setting Native Grass Seed Rate

The Series II Native Grass Box is for seeding ﬂuffy, native grass blends like Big Blue Stem, Indian Grass, and Side Oats Grama.

Refer to Figure 7

Native Grass mixes are too variable for seed rate tables to be useful. Seeding rate for Native Grass is determined by calibration, and set by:

• Drive Type handle at the ground drive gearbox ,

• Driven sprocket at the Native Grass box, using a

sprocket from the storage tree , and;

• Rate Reduction kit (See manual 202-583M), using

an alternate set of ground drive gearbox output and Native Grass jackshaft input sprockets.

Great Plains recommends that you calibrate and adjust your drill to help insure an accurate seeding rate. Fine rate adjustment is done with the Driven sprocket.

1 a

Native Grass Rate Calibration

Before completing these steps, review “Calibration Overview” on page 2.

This Native Grass calibration works on any type of native grass no matter what seed type, weight, or density. It also does not require any particular initial drive setup.

The drill’s revolutions-per-acre at the native grass cup allows you to calibrate the output in pounds by cup sprocket revolution per acre.

The pounds per acre in the seed charts are based on drills with 5.70-8 8-Ply ground drive tires. Be certain that your tires are properly inﬂated (see Operator Manual).

To calibrate seed mix:

1. Know your intended ﬁeld seeding rate in pounds per acre.

2. Raise drill and install lift-assist lock(s).

3. Rotate the right ground drive wheel to see that feed cups and drive are working properly and are free from foreign matter.

4. Record the weight of one or more empty containers large enough to hold seed metered from three rows of the native grass box.

Refer to Figure 2 on page 2

5. Remove the calibration crank from its storage stob on the left top side of the main toolbar.

Figure 7

Native Grass Rate Control

Seeding Rate Risk:

Calibrate. All native grass mixes vary in weight, seed type, and density. You must calibrate each mix.

Factors that affect seeding rates are: weight of seed, size of seed, relative humidity and moisture content of the seed, ratio of inert material to seed, different proportions of seed types affecting density, tire conﬁguration, tire pressure, and tire slippage. The charts in this manual are based on factory tires at recommended inﬂation.

For example: You desire to plant at a TargetRate of:

pounds per acre

For example: 3 containers each weigh:

1.5 lb

or a total of:

4.5 lb.

28378

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18 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Refer to Figure 2 on page 2

6. At the right main (Native Grass) gearbox input jackshaft, place the hex socket of the crank on whichever end allows most convenient full crank rotations.

7. Fill three or more Native Grass compartments at least1⁄2 full of seed. Pull seed hoses off openers under those compartments.

8. Turn gauge wheel or crank several times to ﬁll seed cups with seed. Turn wheel or crank until seed falls to the ground from each cup.

9. Place empty container(s) under the seed tubes to gather the seed as it is metered.

Refer to Figure 8 and Figure 9

10. Note the Drive Type and Native Grass driven sprocket . Also establish whether or not optional

Native Grass Rate Reduction is installed. This information is needed for step 12 and for the calculations later.

Note: If you are planting a mix similar to mixes planted in

the past with this drill, set the Drive Type and ﬁnal sprocket for the previous mix.

11. Note the current reading of the acremeter, unless you do not plan to rely on it for the calibration.

12. Rotate crank or ground drive tire for one acre or hectare (see chart on page 2).

13. Check that the three seed cups have plenty of seed coming into them.

Figure 8

Native Grass Drive Type 2

For example, the drill is presently conﬁgured for: Drive Type: 2 Driven Sprocket: 20T Standard Range: (no Rate Reduction)

Figure 9

Native Grass Driven Sprocket 20T

28374

28379

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Native Grass Rate 19

14. Calculate the area rate at current drill settings. Weigh metered seed, and subtract the initial weight of the container. Divide this number by SampleRows (the number of cups measured, typically 3). Multiply by the number of openers (which is less than 13 if using alternate spacing)

NetWeight GrossWeight EmptyContainer s()–=

PoundsPerSeedCup

PoundsPerAcre PoundsPerSeedCup 13×=

NetWeight

----------------------------------

SampleRows

15. If the measured rate is within 3% of your desired ﬁeld rate, no further adjustment is necessary. Skip to step 21.

The rate just measured is used to locate a new setting in the Native Grass Cup Rate tables on page 20.

16. Calculate the revolutions needed for the target ﬁeld rate. Multiply the calibration revolution rate by the ratio of desired to measured seeding rate. Divide the rate just measured by the cup revolution rate (from the tables) at the current drill settings.

TargetRate

FinalRevs RevolutionsPerAcre

-------------------------------------------

×=

PoundsPerAcre

For example, GrossWeight of containers & sample is:

13 pounds

The NetWeight (pounds) is:

8.5 = 13 - 4.5

The PoundsPerSeedCup per acre is:

2.83 = 8.5 ÷ 3

The PoundsPerAcre is:

36.8 = 2.83 x 13

In our example, the 36.8 lbs/ac rate is 115% of the desired 32 lbs/ac rate, or 15% high. An adjustment is indicated.

For example: Drive Type 2, 20T Driven, and no Rate Reduction is a cup shaft rate of:

139 RevolutionsPerAcre

The FinalRevs shaft rate needed for the target rate is

120.8 = 139 x 32 ÷ 36.8

17. Find this number (or the closest number to this) in the drive setting chart. This gives Drive Type and Native Grass sprocket sizes. If the setting needed is below 50 revs/ac, the Rate Reduction kit is required.

18. Set the new Drive Type at the gearbox lever.

19. Remove the access panel at the right end of the Native Grass box, and exchange the current Driven sprocket for the new one (from the storage tree at drill front).

20. As necessary, exchange installed sprockets at gearbox with those from the Rate Reduction kit (see instructions in kit).

You may want to repeat the calibration procedure if your results vary greatly from the seed rate chart.

21. Remove the crank from the jackshaft and store it on the stob.

22. When drilling, check the amount of seed you are using by noting the acres drilled, amount of seed added to drill, and the level of seed in the box. If you suspect you are drilling more or less seed than desired, and you have accurately calibrated the drill to you seed, you may need to change your sprocket arrangement to compensate for your ﬁeld conditions.

Note: On older model drills, if all sprocket combinations

result in rates higher than desired, a Seed Rate Reduction kit (202-580A) is available.

For example: The closest setting to 120.8 revs/ac is:

120 (found in the Standard rate table)

which is a conﬁguration of:

Drive Type: 2 Driven Sprocket: 23T

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20 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Native Grass Meter Shaft Rates

These charts are used during calibration. They provide rotations of the meter shaft per acre, and are not seed rate charts. For metric charts, see page 45.

Once the pounds per shaft revolution is known for your seed mix, the charts provide the Transmission, Drive Type, and Final Sprocket required.

Standard Shaft Rates

Native Grass Driven Sprocket (Standard Rate)

Drive

Type

196.389.984.279.374.970.967.464.261.358.6 2 198 185 173 163 154 146 139 132 126 120 3 297 277 260 244 231 219 208 198 189 181 4 484 452 424 399 377 357 339 323 308 295

14T 15T 16T 17T 18T 19T 20T 21T 22T 23T

Native Grass Cup Revolutions Per Acre

32343A

Shaft Rates with Seed Rate Reduction

Native Grass Driven Sprocket (with Rate Reduction Kit)

Drive

Type

154.450.847.644.842.340.138.136.334.633.1 2 112 104 97.9 92.1 87.0 82.4 78.3 74.6 71.2 68.1 3 168 157 147 138 130 124 117 112 107 102 4 274 255 239 225 213 202 192 182 174 167

The Native Grass attachment includes, as standard equipment, an agitator.

14T 15T 16T 17T 18T 19T 20T 21T 22T 23T

Native Grass Cup Revolutions Per Acre

32343B

Equipment Damage Risk:

Do not transport with seed loaded in the Native Grass box. Load seed at ﬁeld. Transport with seed loaded compacts the seed at the meter inlets and can easily clog agitators and meters. Drive system operation in the ﬁeld can then damage the agitator and drive components.

Seed Lubricant

Add graphite seed lubricant after loading seed in the Native Grass box. For humid planting environments, double or triple graphite as needed. Use1⁄3cup (80 mL) across the top of the seed mix. Graphite part numbers:

821-042C 1 pound (0.45 kg) bottle

821-060C 5 pound (2.3 kg) jug

Native Grass Agitator Series II

When drilling, check the amount of seed you are using by noting the acres drilled, amount of seed added to drill, and the level of seed in the box. If you suspect you are drilling more or less seed than desired, and you have accurately calibrated the drill to your seed, change your sprocket arrangement to compensate for your ﬁeld conditions.

151-143B Table of Contents Main Box Rates 2011-10-21

Figure 10

25041

Page 23

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Native Grass Rate 21

Brome Grass Seeding

When the seeding material is strictly brome grass, you can set an initial rate based on the tables following, and then calibrate. You can also use the procedure for mixes (page 17), but what follows is usually easier.

Refer to Figure 11

1. Find the desired pounds per acre on the Brome Grass Rate Charts on page 23. Determine which Drive Type and Final Drive sprocket are required, and for low rates, if Seed Rate Reduction is needed.

2. Set the Drive Type with the gearbox handle (see “Setting Drive Type” on page 3).

3. Install the sprocket from storage on the right-hand side of the Native Grass box. To change sprockets, loosen the chain idlers and remove chain. Replace with desired sprocket.

4. Fill three or more compartments at least half full of seed at the outboard end of the box. Pull seed tubes off the openers at rows to be sampled. This example assumes three rows are used.

5. To perform this calibration, you need a scale that is accurate at the aggregate sample size, and three (3) light containers, each capable of holding the expected SamplePerRow. Record the empty container weights. The total is ContainerWeight.

6. Estimate the sample sizes. This example simulates a full acre.

TargetRate

SamplePerRow

ExpectedSample SamplePerRow SampledRows×=

------------------------------

RowCount

7. Raise the drill so the gauge wheel is out of ground contact.

8. Remove the calibration crank from its storage stob. Store the retaining pin on the stob.

9. Place the hex socket of the crank on the gearbox input jackshaft (see page 2).

10. If the Main Box or optional Small Seeds box are loaded, disconnect their drive or set their rates to zero (unless you are simultaneously calibrating multiple boxes).

11. Rotate the crank several turns to ensure that the drives and seed cups are engaged, working properly, free from foreign material, and that seed is ﬂowing steadily from the meters. Stop.

12. Note the current reading of the acremeter, unless you do not plan to rely on it for the calibration.

13. Empty the sample containers back into the seed box, and place them back under the three hoses to gather metered seed.

Figure 11

Native Grass Final Drive Sprocket

Example: You want to apply brome at a TargetRate of 121⁄4 pounds per acre. The nearest chart rate is:

12.0 Standard Transmission, Drive Type: 2 Final Drive: 22T

Example: 3 containers, each weighing 8 oz. (1⁄2 lb.).

ContainerWeight is 1.5 lb:

1.5 = 3 x 0.5

SamplePerRow is 0.92 pounds:

12.25

--------------

0.94

ExpectedSample is 2.8 pounds:

2.8 0.92 3×=

Crushing Hazard:

Install lift cylinder lock(s) on a raised drill.

18670

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22 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

14. Turn crank at a steady rate for the number of turns speciﬁed on page 2, or until one acre or hectare is tallied on acremeter. While turning, check that cups have ample seed coming into them.

15. Weigh metered seed. Subtract initial weight of container(s).

NetWeight GrossWeight ContainerWeight–=

16. Divide the sample NetWeight by SampleRows (the number of row sampled, typically 3). Multiply by number of openers on your drill to determine the total of pounds per acre seeded.

NetWeight

MeasuredRate

--------------------------------------

SampleRows

OpenerCount×=

17. If the calibration sample is more than a few percent different than the desired FieldRate, pick a new chart rate based on the difference factor.

TargetRate

NewChart

-------------------------------------- -

MeasuredRate

PreviousChart×=

18. Find the chart rate closest to NewChart. Change the Final Drive sprocket and Drive Type as needed. If the correction went off the Standard chart to the low side, consider installing the Rate Reduction kit.

19. You may want to repeat calibration procedure at the new setting if your results varied greatly from the Seed Rate Chart.

When drilling, check the amount of seed you are using by noting the acres drilled, amount of seed added to drill, and the level of seed in the box. If you suspect you are drilling more or less seed than desired, and you have accurately calibrated the drill to your seed, you may need to change your sprocket arrangement to compensate for your ﬁeld conditions.

3P806NT crank rotations for 1 acre:

656

Example: the containers weighed a total of 7.66 pounds after test. NetWeight is 3.16 pounds.

3.16 7.66 4.5–=

Example: MeasuredRate is:

13.7 lbs/ac

3.16

13.7

-----------

13×=

Example:

TargetRate = 12.25 PreviousChart = 12.0 MeasuredRate = 13.7

The new chart rate is:

NewChart = 10.7 pounds per acre

12.25

10.7

--------------

13.7

12.0×=

The nearest Standard chart rate to 10.7 is 11.0, or Drive Type: 2 Final Sprocket: 24T

Alternatively, you could use the Reduced Rate chart, which has a 10.5 rate setting at Drive Type 3, 22T.

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Native Grass Rate 23

Brome Rate Charts

Factors which will affect seeding rates are: weight of seed, size of seed, relative humidity and moisture content of seed, ratio of inert material to seed, different proportions of seed types affecting density, tire conﬁguration, tire pressure, and tire slippage. Seed mixes vary.

Field Results Risk: The charts are to be used as a reference to your own brome grass mix. All brome grass mixes vary so this is why you must calibrate each mix using the chart only as a starting point.

The rates are based on a 5.70-8 8-Ply tire inﬂated to factory speciﬁcation (see Operator Manual).

For metric charts, see page 46.

Standard Brome Rates

Native Grass Driven Sprocket (Standard Rate)

Drive Type

1 8.6 8.1 7.6 7.2 6.8 6.4 6.1 5.9 5.6 5.4

217.716.515.614.713.913.212.612.011.511.0

326.524.823.422.120.919.918.918.117.316.5

443.240.538.136.034.132.430.829.428.227.0

15 16 17 18 19 20 21 22 23 24

Brome Grass Seeding Rate in Pounds per Acre

32336A

Reduced Brome Rates

Native Grass Driven Sprocket (with Rate Reduction Kit)

Drive Type

1 5.0 4.7 4.4 4.2 3.9 3.7 3.5 3.4 3.2 3.1 2 10.3 9.6 9.0 8.5 8.1 7.7 7.3 7.0 6.7 6.4

315.414.413.612.812.111.511.010.510.0 9.6

425.023.522.120.919.818.817.917.016.315.6

15 16 17 18 19 20 21 22 23 24

Brome Grass Seeding Rate in Pounds per Acre

32336B

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24 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Small Seeds Rate

Seeding rate from the optional Small Seeds Attachment is controlled entirely by the seed rate handle on the small seeds box. No sprocket changes are required, and small seeds rate is unaffected by settings for the main seed box or other optional boxes.

Refer to Figure 12

To set Small Seeds rate, loosen the wing nut at the handle. Move the lever until the indicator is about 10

higher than the intended setting, then return it to that setting. Tighten nut.

Set the initial rate based on the charts on page 27 and page 28.

Small Seeds Rate Calibration

Differences will exist between the tested seed and ﬁeld conditions used to generate the Small Seeds Rate Charts, and your seed and conditions. To accurately achieve your target population, Great Plains recommends calibrating.

Due to the large number of crank revolutions per acre (310 or 569) and per hectare (766 or 1405), a practical calibration is a simulation of1⁄

1. Estimate the sample sizes.

TargetRate

RateSample

SamplePerRow

-----------------------------

RateSample

----------------------------------- -

RowCount

acre or1⁄

hectare.

Figure 12

Small Seeds Rate Handle

Example: You want to apply alfalfa at 12 pounds per acre. RateSample is:

------

1.2

Example: SamplePerRow is

0.09 pounds:

1.2

0.092

-------

Example: 3 rows are to be used in the sampling. ExpectedSample is:

0.28 pounds

32634

ExpectedSample SamplePerRow SampledRows×=

2. To perform this calibration, you need a scale that is accurate near the aggregate sample size, and

0.277 0.092 3×=

Example: 3 containers each weighing 0.20 lb or:

0.60 lb total

three (3) light weight containers, each capable of holding a row’s sample.

3. Raise the drill so the gauge wheel is out of ground contact. If the gauge wheel is in ground contact, cranking is difﬁcult or impossible.

4. Remove the calibration crank from its storage stob.

Crushing Hazard:

Install lift cylinder lock(s) on a raised drill.

Store the retaining pin on the stob.

5. Rotate the crank or tire several turns to ensure that the drives and seed cups are engaged, working properly, free from foreign material, and that seed is ﬂowing steadily from the meters. Stop.

6. Pull the small seed hoses off the top of three opener seed tubes, at the top of the openers. Place the hoses into each sample container.

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Small Seeds Rate 25

7. If not already done, set the Small Seeds Rate Handle.

8. Load seed above the rows to be sampled. Load well more than the expected sample size.

9. Rotate the crank several turns to ensure that the drives and seed cups are engaged, working properly, free from foreign material, and that seed is ﬂowing steadily from the meters. Stop.

10. Note the current reading of the acremeter, unless you do not plan to rely on it for the calibration.

11. Empty the sample containers back into the seed box, and place them back under the three hoses to gather metered seed.

13. Weigh metered material. Subtract initial weight of container(s).

NetWeight GrossWeight ContainerWeights–=

14. Divide the net material weight by three. Multiply by number of openers on your drill, and then by ten, to determine the total of pounds per acre applied.

NetWeight

MeasuredRate

--------------------------------------

SampleRows

RowCount× 10×=

Example: planting alfalfa at 12 pounds/ac has an initial small seeds rate handle setting of:

Crank rotations for one tenth acre is:

65.6

Example: the three containers weighed a total of

0.85 pounds after test, NetWeight is:

0.25 pounds

0.25 0.85 0.60–=

Example: MeasuredRate is:

10.8 lbs/ac, lower than the target rate of 12.

0.25

10.8

-----------

13× 10×=

15. Divide the desired original ﬁeld rate by the measured rate to calculate a scale adjustment factor.

FieldRate

CorrectionFactor

--------------------------------------

MeasuredRate

16. Multiply the scale setting just used times correction factor to obtain the next scale setting to use.

NextScale PreviousS cale CorrectionFactor×=

17. Set the Small Seeds Rate Handle to the new scale setting.

18. You may want to repeat calibration procedure at the new setting if your results varied greatly from the Seed Rate Chart, or if you must operate near the ends of the Seed Rate handle scale (0-20 or 90-100).

19. Check that your tire(s) is (are) properly inﬂated. See “Tire Inﬂation Chart” in the Operator manual.

20. With calibration complete, store calibration crank, reinstall any removed chains or sprockets and reconnect seed hoses.

For example: the target rate was 12 lbs/ac: the CorrectionFactor is:

1.11

-----------

10.8

For example: the previous scale setting was 60, the NextScale setting is:

66.5

66.5 60 1.11×=

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Small Seeds Row Shut-Off

If alternate row spacing is required for small seeds, optional plugs are available to block ﬂow inside the seed box tray.

1. Clean-out seed. The seed box must be empty prior to inserting plugs. See “Small Seeds Box Clean-Out” in Operator manual.

2. Before installing plugs, inspect the seed boxes for existing factory-installed plugs. These are blocking extra unused seed ports. You may want to identify these plugs with an indelible marker.

3. Insert one plug at each row to shut off. Verify the seed hose path before inserting the plug, as some hoses do not make a strictly vertical drop to their row units.

4. Review seed rate settings prior to planting. Perform calibration calculations with the actual active row count.

When removing plugs to restore rows to operation, be sure to not disturb a factory-installed plug.

Figure 13

27407

Small Seeds Tube Plug

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Small Seeds Rate 27

Small Seeds Rate Charts

U.S customary units. Metric charts begin on page 42.

Alfalfa, Red Alsike, Crimson Clover

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 1.8 2.8 3.9 4.8 6.0 7.0 7.9 9.0 10.0 11.1 12.1 13.2 14.0 15.3 16.2 17.2 18.3 19.3 20.3

Kentucky Bluegrass, Fescue, Annual Rye Grass

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 0.2 .9 1.5 2.2 2.7 3.3 3.7 4.2 4.6 5.1 5.5 5.9 6.3 6.7 7.0 7.4 7.7 8.1 8.4

Bermuda, Red Top, Lespedeza Unhulled, Sercia, Sand, Weeping Love Grass

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 0.5 0.9 1.4 2.1 2.6 3.3 4.0 4.7 5.3 5.8 6.3 6.7 7.2 7.6 8.2 8.8 9.3 9.8 10.4

Red & Sweet Clover, Lespedeza Hulled

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 1.2 2.7 4.2 5.7 7.2 9.1 10.6 12.3 13.7 15.3 16.7 18.1 19.7 21.2 22.7 24.2 25.8 27.2 28.6

Orchard Grass

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 0.0 0.2 0.5 0.7 1.1 1.2 1.6 1.9 2.3 2.6 2.8 3.2 3.5 3.9 4.0 4.4 4.6 4.9 5.1

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28 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Rate Charts, Small Seeds Box, continued...

Millet, Reed Canary

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.3 1.2 2.0 2.8 3.6 4.4 5.2 6.0 6.8 7.6 8.4 9.3 10.1 10.9 11.7 12.5 13.3 14.1 14.9 15.1

Ladino Clover, Canary Grass, Timothy, Canola

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 0.9 1.6 2.6 3.9 4.9 6.1 7.4 8.6 9.8 11.1 12.5 13.7 14.9 16.3 17.6 18.8 20.4 21.9 23.5

Birdsfoot, Trefoil, Sudan

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Pounds per Acre

7.5 inch 0 0.0 1.4 2.6 4.2 5.4 7.0 8.6 10.2 11.9 13.5 15.4 17.0 18.8 20.5 22.5 24.0 25.8 27.6 29.1 30.9

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates 29

Fertilizer Rate

Setting Fertilizer Rate

The fertilizer meters are driven by a chain system independent of the seed meter drives, and are unaffected by Drive Type. Fertilizer rate is adjusted with the Rate Adjuster at the fertilizer box.

Fertilizer application rates vary with fertilizer type, density and particle size. Relative humidity and ﬁeld conditions can also affect application rates. The chart is based on fertilizer with average particle size and a density of 65 pounds per cubic foot. Initially set rate according to charts, then calibrate the drill to your material as described on this page.

Accurately obtaining the desired application rate requires three steps:

1. Adjusting target rate for large differences between material and chart density.

2. setting the Rate Adjuster to the scale value from the chart, and;

3. calibration: checking predicted application rate, and resetting rate adjuster as needed.

1 2

Figure 14

Fertilizer Rate Adjuster

32673

Fertilizer Rate Chart

Fertilizer Rates in Pounds per Acre

Setting Number

15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Application Rate - Pounds per Acre (based on 65 lbs/cu.ft)

7.5 inch 11 20 38 54 72 89 105 123 138 157 174 187 209 223 234 242 245 247

Metric Fertilizer Rate Chart

Setting Number

10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Application Rate - Kilograms per Hectare (based on 1.04 kg/liter)

19.1cm (7.5in) 13 20 27 42 57 76 98 112 126 150 175 189 202 222 243 265 287 310 331

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30 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Adjusting for Density

The fertilizer meter rate charts are based on fertilizer with a density of 65 pounds per cubic foot (1.04 kg/liter). If your fertilizer density is within a few percent of that, you can skip this step and rely on calibration to determine ﬁnal Rate Adjuster setup.

For larger variances, particularly with very low densities, pre-compensating can simplify calibration, by choosing a different target chart value for the application rate.

Density Conversion Charts

U.S. Customary Units

Density, lb/ft

Conversion Factor

Metric

Density, kg/liter 725 800 875 950 1041 1125 1200 1275

Conversion Factor

45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0

1.45 1.30 1.20 1.10 1.00 0.93 0.87 0.81

1.44 1.30 1.19 1.10 1.00 0.93 0.87 0.82

1. Find your actual material density. Normally, this reported on the container in which it was supplied. If not, weigh a known volume and calculate it.

2. Find your material Density in the table at right, and the Conversion Factor below it.

3. Adjust your target application rate prior to consulting the Fertilizer Rate Chart.

AdjustedRate TargetRate ConversionFactor×=

4. Consult the Fertilizer Rate Chart for the Adjusted rate.

5. Calibrate using the Rate Adjuster setting for the adjusted rate.

Example: You want to apply 109 pounds per acre.

TargetRate = 109

Example: Your fertilizer has a density of 45 pounds per cubic foot.

ConversionFactor = 1.45 (from chart) Adjusted Rate = 158 pounds per acre

158 109 1.45×=

Example: The adjusted rate is 158. The closest chart rate of 157 corresponds to a Rate Adjuster setting of:

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Fertilizer Rate 31

Fertilizer Rate Calibration

Differences will exist between the tested fertilizer and ﬁeld conditions used to generate the Rate Chart, and your fertilizer and conditions. To accurately achieve your target application, Great Plains recommends calibrating.

Perform the calibration with the opener frames lowered (if the openers are raised, the clutch disengaged). Leave the tractor hitched for movement control.

Due to the large number of crank revolutions per acre (310 or 569) and per hectare (766 or 1405), a practical calibration is a simulation of

⁄

acre or1⁄

hectare.

1. Estimate the sample sizes.

TargetRate

RateSample

SamplePerRow

ExpectedSample SamplePerRow SampledRows×=

-----------------------------

RateSample

----------------------------------- -

RowCount

Example: You want to apply 109 pounds per acre, and want to simulate1⁄

109

10.9

---------

acre. RateSample is 10.9.

Example: SamplePerRow is 0.84:

10.9

0.84

-----------

Example: 3 rows are to be used in the sampling.

ExpectedSample is 2.52:

2.52 0.84 3×=

2. To perform this calibration, you need a scale that is accurate near the aggregate sample size, and 3 light weight containers, each capable of holding a row’s sample.

3. Raise the drill so the gauge wheel is out of ground contact.

4. Remove the calibration crank from its storage stob. Store the retaining pin on the stob.

5. Place the hex socket of the crank on the gearbox input jackshaft (see page 2).

6. Pull the fertilizer hoses off the top of three openers, at the top of the openers. Place the hoses into each sample container.

7. If not already done, make any density correction, then using the chart for the TargetRate, set rate adjuster. If seed is loaded, remove the drive chain for the seed box (unless you are simultaneously calibrating seed rate).

8. Load fertilizer above the rows to be sampled. Load well more than the expected sample size.

Possible Agricultural Chemical Hazard:

Follow material supplier recommendations for safety precautions in handling fertilizer.

9. Rotate the crank several turns counter-clockwise to ensure that the drive and meters are engaged, working properly, free from foreign material, and that material is ﬂowing steadily from the meters. Stop.

Example: 3 containers each weighing 0.5 lb or 1.5 lb total

Crushing Hazard:

Install lift cylinder lock(s) on a raised drill.

See example on page 30, which determined an initial rate adjuster setting of:

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32 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

10. Note the current reading of the acremeter, unless you do not plan to rely on it for the calibration.

11. Empty the sample containers back into the fertilizer box, and place them back under the three hoses to gather metered material.

12. Turn crank at a steady until one tenth acre is tallied on acremeter or for the number of turns from the

Crank rotations for one tenth acre is:

65.6

charts on page 2.

13. Weigh metered material. Subtract initial weight of container(s).

NetWeight GrossWeight ContainerWeights–=

Example: GrossWeight is 3.69 pounds. NetWeight is 2.19 pounds

2.19 3.69 1.5–=

14. Divide the net material weight by the number of row sampled. Multiply by number of openers on your drill, and by 10 if a1⁄

sample size was collected, to

determine the total of pounds per acre applied.

NetWeight

MeasuredRate

------------------------------------ -

SampledRows

RowCount× 10×=

Example: MeasuredRate is 95 lbs/ac

2.19

-----------

13× 10×=

15. Divide the desired TargetRate by the MeasuredRate to calculate a scale adjustment factor.

TargetRate

CorrectionFactor

--------------------------------------

MeasuredRate

16. Multiply the scale setting just used (the PreviousScale, which is the initial adjusted setting for the ﬁrst calibration run) times the CorrectionFactor to obtain the next scale setting to use.

NextScale PreviousS cale CorrectionFactor×=

17. Reset the fertilizer rate adjuster based on the settings at the new chart rate.

18. You may want to note the current scale setting and repeat the calibration procedure at the new setting if your results varied greatly from the desired ﬁeld rate.

19. With calibration complete, store the calibration crank, re-install any seed chain removed and reconnect fertilizer hoses.

Example: the TargetRate was 109 lbs/ac: the CorrectionFactor is 1.15

109

1.15

---------

Example: the previous scale setting was 60, the next scale setting is 69.

69 60 1.15×=

20. Check that your end-wheel tires are 5.70-8 8-Ply, and properly inﬂated. See “Tire Inﬂation Chart” in the Operator manual.

21. When drilling, check application rate by noting acres treated, amount of fertilizer added to drill and fertilizer level in drill box. If you are applying more or less than desired, adjust rate slightly to compensate for ﬁeld conditions.

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates 33

Appendix

Metric Rate Charts, Main Seed Box

See page 3 for instructions. Charts in U.S. customary units begin on page 8.

Alfalfa (Medicago sativa)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

05.27.5101316202428323640444852576164687174

Drive Type: 2 Seed Rate in Kilograms Per Hectare

011152127344149576574829199108116124132140146153

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0172432415162738597109121134146158170181192202212220

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 28 40 53 67 84 101 119 138 157 177 197 218 238 258 277 295 313 330 345 359

(based on 0.77 kg/litre)

32291D

Bahia Grass (Paspalum notatum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

02.43.55.17.110121619222630343841454851545759

Drive Type: 2 Seed Rate in Kilograms Per Hectare

05.07.11015202532394654626977859299105111116120

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 7.5 11 16 22 29 38 48 58 69 81 92 104 116 127 138 148 158 167 174 181

Drive Type: 4 Seed Rate in Kilograms Per Hectare

01217253648627895113131150170189207225242258272284294

(based on 0.51 kg/litre)

32292D

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34 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Metric Rate Charts, Main Seed Box, continued...

Barley (Hordeum vulgare)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 5.3 7.1 9.4 12 15 19 23 27 31 35 39 43 47 51 54 58 60 62 64 65

Drive Type: 2 Seed Rate in Kilograms Per Hectare

011151925323947556372808997105112118124128132134

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0152229384858698193105117130142153165175185194202208

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 25 36 48 62 78 95 113 132 152 171 191 211 231 250 268 285 301 316 329 340

Buckwheat (Fagopyrum esculentum)

(based on 0.66 kg/litre)

32293D

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 4.4 6.4 8.9 12 15 18 22 26 30 34 38 42 46 49 53 56 58 60 62 63

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 9.0 13 18 24 31 38 46 53 62 70 78 86 94 101 108 114 120 124 128 130

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0172026344455688195109124138152166179190200209216220

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 27 33 43 56 72 90 110 132 155 178 202 225 249 271 291 310 327 341 352 359

Buffalograss (Buchloe dactyloides)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 4.4 6.4 8.9 12 15 18 22 26 30 34 38 42 46 49 53 56 58 60 62 63

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 9.0 13 18 24 31 38 46 53 62 70 78 86 94 101 108 114 120 124 128 130

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0172026344455688195109124138152166179190200209216220

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 27 33 43 56 72 90 110 132 155 178 202 225 249 271 291 310 327 341 352 359

(based on 0.62 kg/litre)

32295D

(based on 0.30 kg/litre)

32296D

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Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Appendix 35

Metric Rate Charts, Main Seed Box, continued...

Bermuda Grass (Cynodon dactylon)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

02.03.96.08.010121517192124262830323537394143

Drive Type: 2 Seed Rate in Kilograms Per Hectare

04.08.1121721253034394448535862677175808488

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 6.4 12 19 25 31 38 45 51 58 65 72 78 85 91 97 103 109 115 120 125

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0102030415162738495106117127138148159168178187196204

K-31 Fescue (Festuca)

(based on 0.77 kg/litre)

32294D

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

02.13.24.55.87.28.61012131516171920212223242525

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 4.3 6.7 9.2 12 15 18 21 24 27 30 33 36 39 41 44 46 48 50 51 52

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 7.4 10 14 18 22 26 30 35 39 44 48 53 57 61 65 69 72 75 77 79

Drive Type: 4 Seed Rate in Kilograms Per Hectare

012172229354249576472798693100106112118122126129

Flax (Linum usitatissimum) or Sudan

(Sorghum bicolor subsp. drummondii)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

05.17.6101417212529333741465054586266697376

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0111622283543515967768594102111119128135143149155

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0162432425262738597109121133145156168179190200210219

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 26 39 53 68 85 102 120 138 158 177 197 216 236 255 274 292 310 326 342 356

(based on 0.27 kg/litre)

32297D

(based on 0.71 kg/litre)

32298D

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36 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Metric Rate Charts, Main Seed Box, continued...

Eastern Gamma Grass - Pete

(Tripsacum dactyloides)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 4.3 5.9 7.9 10 13 15 18 21 24 27 30 33 35 38 40 42 44 46 47 48

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 8.8 12 16 21 26 31 37 43 49 55 61 67 73 78 83 87 91 94 97 98

Kentucky Blue Grass (Poa pratensis)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

05.17.6101417212529333741465054586266697376

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0111622283543515967768594102111119128135143149155

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0162432425262738597109121133145156168179190200210219

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 26 39 53 68 85 102 120 138 158 177 197 216 236 255 274 292 310 326 342 356

(based on 0.30 kg/litre)

32299D

32300D

Millet (Pennisetum glaucum, Setaria italica,

Panicum miliaceum, Eleusine coracana)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

151-143B Table of Contents Main Box Rates 2011-10-21

05.37.6101317202428313640444751555862656769

Drive Type: 2 Seed Rate in Kilograms Per Hectare

011162127344149576573818998105113120127133138143

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0152331415162738598110122135147158170180190199207214

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 25 37 51 66 83 101 120 139 159 179 199 219 239 258 277 294 310 325 338 349

(based on 0.77 kg/litre)

32301D

Page 39

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Appendix 37

Metric Rate Charts, Main Seed Box, continued...

Milo (Sorghum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

05.17.9111520242934404551566267727680848790

Drive Type: 2 Seed Rate in Kilograms Per Hectare

011162331405060718293104116127137147157165173180185

Oats (Avena sativa)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 2.0 3.4 5.0 6.8 8.8 11 13 15 18 20 22 25 27 29 32 34 36 37 39 40

Drive Type: 2 Seed Rate in Kilograms Per Hectare

04.27.0101418222732364146515661656973778083

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 7.7 11 15 21 27 33 40 48 56 64 72 79 87 94 101 107 113 118 122 124

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0121825344354667891104117129142154165175184192198203

(based on 0.77 kg/litre)

32302D

(based on 0.48 kg/litre)

32303D

Orchard Grass Potomac (Dactylis glomerata)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

2011-10-21 Table of Contents Main Box Rates 151-143B

01.31.72.33.03.84.65.56.57.58.510111212131415161616

Drive Type: 2 Seed Rate in Kilograms Per Hectare

02.63.54.76.17.79.51113151820222426272931323334

Drive Type: 3 Seed Rate in Kilograms Per Hectare

03.75.16.88.911141619222528313436394244464849

Drive Type: 4 Seed Rate in Kilograms Per Hectare

06.18.3111418222631364045505559646872757880

(based on 0.23 kg/litre)

32304D

Page 40

38 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Metric Rate Charts, Main Seed Box, continued...

Peas (Pisum sativum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

02.45.9101419242934394449545964687275788082

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 4.9 12 20 29 38 49 59 70 80 91 102 112 122 131 140 148 155 160 165 168

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 3.6 14 25 37 51 65 79 95 110 125 140 155 169 182 195 206 215 224 230 234

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 5.9 22 40 61 82 106 130 154 179 204 229 253 276 297 317 335 351 365 375 382

Pinto Beans (Phaseolus vulgaris)

(based on 0.79 kg/litre)

32305D

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

04.67.6111520253036414752586368727680828486

Drive Type: 2 Seed Rate in Kilograms Per Hectare

010162332415162738596108119129139148157164169173176

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 16 24 35 47 60 75 90 106 123 139 156 172 187 202 215 228 238 247 254 258

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 26 40 57 76 98 122 147 173 200 227 254 280 305 329 351 371 389 403 414 421

Rape (Brassica napus)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

04.77.0101215182125283235384245495255586163

Drive Type: 2 Seed Rate in Kilograms Per Hectare

01014202531384451586572798693100106113119124130

Drive Type: 3 Seed Rate in Kilograms Per Hectare

015212735445363738494105116127137147156165173180186

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 24 34 45 57 71 87 102 119 136 154 172 189 206 223 239 255 269 282 293 303

(based on 0.79 kg/litre)

32306D

(based on 0.66 kg/litre)

32307D

151-143B Table of Contents Main Box Rates 2011-10-21

Page 41

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Appendix 39

Metric Rate Charts, Main Seed Box, continued...

Rice, Long Grain (Oryza sativa indica)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

01.03.76.59.312151821242730323537394243454647

Drive Type: 2 Seed Rate in Kilograms Per Hectare

02.07.5131925313743495561667277818589929597

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 3.3 12 20 28 37 45 54 62 71 79 87 96 104 111 119 126 133 140 146 152

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 5.5 19 32 46 60 74 88 102 115 129 142 156 169 181 194 206 217 228 238 248

Rice, Short Grain (Oryza sativa japonica,

Oryza sativa sinica)

(based on 0.60 kg/litre)

32308D

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 2.8 5.2 7.7 10 13 16 19 22 25 29 32 35 38 40 43 45 48 50 51 53

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 5.8 11 16 21 27 33 40 46 52 59 65 71 77 83 88 93 98 102 105 108

Drive Type: 3 Seed Rate in Kilograms Per Hectare

01218243139485767768696105114123131138144149153155

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 20 29 39 51 64 78 93 109 124 140 156 172 186 200 213 225 235 243 249 252

Rye (Secale cereale)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

04.37.4111520253035414652576368737782858891

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 8.8 15 23 31 41 51 61 72 84 95 107 118 129 139 150 159 168 175 182 187

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 15 24 35 47 60 75 91 107 124 142 159 177 194 210 226 242 256 269 280 290

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 25 39 57 76 99 123 148 175 203 231 259 288 316 343 369 394 417 438 457 473

(based on 0.55 kg/litre)

32309D

(based on 0.73 kg/litre)

32310D

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 42

40 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Metric Rate Charts, Main Seed Box, continued...

Perennial Rye Grass - Palmer

(Lolium perenne, Lolium multiflorum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 2.7 4.0 5.5 7.1 8.9 11 13 15 17 19 21 23 25 27 29 30 32 33 34 35

Drive Type: 2 Seed Rate in Kilograms Per Hectare

05.58.2111518222630353943485256596366687172

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0111317212632394653616875828995101105109112113

Drive Type: 4 Seed Rate in Kilograms Per Hectare

018222735435363758799111123134145155164171178182184

(based on 0.46 kg/litre)

32311D

Soybeans (Glycine max)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

04.57.8111620252934404550555964687276798183

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 9.3 16 24 32 41 51 61 71 81 92 102 112 122 131 140 148 156 162 167 171

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 12 23 35 48 61 75 90 104 119 134 149 163 177 191 204 216 228 238 247 255

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 20 38 57 78 100 123 146 170 194 219 243 266 289 311 333 353 371 388 403 416

Sunflower (Helianthus annuus)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

00.31.93.55.37.39.31113161820222426283032333536

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 0.7 3.8 7.3 11 15 19 23 28 32 37 41 45 50 54 58 62 65 68 71 74

Drive Type: 3 Seed Rate in Kilograms Per Hectare

02.86.11015202531374349566268748085909498101

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 4.6 10 16 24 32 41 50 60 70 81 91 101 111 121 130 139 147 154 160 165

(based on 0.75 kg/litre)

32312D

(based on 0.36 kg/litre)

32313D

151-143B Table of Contents Main Box Rates 2011-10-21

Page 43

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Appendix 41

Metric Rate Charts, Main Seed Box, continued...

Tiffany Teff, Coated (Erogrostis tef)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

04.57.0101316202327313539444852576165697377

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 9.3 14 20 27 33 41 48 56 64 73 81 90 99 108 116 125 134 142 151 159

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0142230405061728496109122135148161175188201214226238

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 23 35 50 65 82 99 118 137 157 177 198 220 241 263 285 306 327 348 369 388

Wheat (Triticum)

(based on 0.84 kg/litre)

32314D

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

0 8.0 10 13 16 20 24 29 34 40 45 51 56 61 67 72 76 80 84 87 89

Drive Type: 2 Seed Rate in Kilograms Per Hectare

016202633415060708192104115126137147157165172179183

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 21 29 38 50 62 76 90 105 121 137 153 168 184 199 213 226 238 249 258 265

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 34 47 63 81 101 123 147 172 197 223 249 274 300 324 347 368 388 405 420 432

Wheatgrass (Pascopyrum smithii,

Agropyron elongatum)

Seed Rate Handle Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Drive Type: 1 Seed Rate in Kilograms Per Hectare

19.1 cm

01.11.92.73.64.55.56.47.48.49.510111213141516171818

Drive Type: 2 Seed Rate in Kilograms Per Hectare

0 2.2 3.8 5.5 7.4 9.3 11 13 15 17 19 22 24 26 28 29 31 33 35 36 37

Drive Type: 3 Seed Rate in Kilograms Per Hectare

0 3.9 6.0 8.3 11 13 16 19 22 25 28 31 35 38 40 43 46 48 51 53 54

Drive Type: 4 Seed Rate in Kilograms Per Hectare

0 6.3 10 14 18 22 27 31 36 41 46 51 56 61 66 70 75 79 83 86 89

(based on 0.82 kg/litre)

32315D

(based on 0.30 kg/litre)

32316D

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 44

42 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Metric Rate Charts, Small Seeds Box

See page 24 for instructions. Charts in U.S. customary units begin on page 27.

Alfalfa, Red Alsike, Crimson Clover

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 2.0 3.2 4.4 5.4 6.8 7.9 8.9 10.1 11.3 12.5 13.6 14.9 15.8 17.2 18.3 19.4 20.6 21.7 22.9

Kentucky Bluegrass, Fescue, Annual Rye Grass

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 0.2 1.0 1.7 2.5 3.0 3.7 4.2 4.7 5.2 5.7 6.2 6.6 7.1 7.5 7.9 8.3 8.3 9.1 9.5

Bermuda, Red Top, Lespedeza Unhulled, Sercia, Sand, Weeping Love Grass

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 0.6 1.0 1.6 2.4 2.9 3.7 4.5 5.3 6.0 6.5 7.1 7.5 8.1 8.6 9.2 9.9 10.5 11.0 11.7

Red & Sweet Clover, Lespedeza Hulled

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 1.4 3.0 4.7 6.4 8.1 10.3 11.9 13.9 15.4 17.2 18.8 20.4 22.2 23.9 25.6 27.3 29.1 30.6 32.2

Orchard Grass

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 0.0 0.2 0.6 0.8 0.8 1.4 1.4 1.4 1.4 1.4 3.2 3.6 3.9 4.4 4.5 5.0 5.2 5.5 5.5

151-143B Table of Contents Main Box Rates 2011-10-21

Page 45

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Appendix 43

Metric Rate Charts, Small Seeds Box, continued...

Millet, Reed Canary

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.3 1.4 1.4 1.4 4.1 5.0 5.9 6.8 7.7 8.6 9.5 10.5 11.4 12.3 13.2 14.1 15.0 15.9 16.8 17.0

Ladino Clover, Canary Grass, Timothy, Canola

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 1.0 1.8 2.9 4.4 4.4 4.4 8.3 9.7 11.0 12.5 14.1 15.4 16.8 18.4 19.8 21.2 23.0 24.7 26.5

Birdsfoot, Trefoil, Sudan

Small Seeds Cup Lever Setting

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Rows Seeding Rate in Kilograms per Hectare

19.1cm (7.5in) 0 0.0 1.6 1.6 1.6 1.6 7.9 9.7 11.5 11.5 15.2 17.4 17.4 17.4 17.4 25.4 27.0 29.1 31.1 32.8 32.8

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 46

44 3P806NT Table of Contents Main Box Rates Great Plains Manufacturing, Inc.

Metric Native Grass Rates

For U.S. customary units, see page 20.

Formulas Metric Example

Know your Desired seed rate in pounds per acre:

TargetRate

Example target seed rate:

40 kg per hectare

Choose the number of rows to sample. Example:

Weigh the empty sample container(s):

ContainerWeight

Example container are three 680 gram buckets:

2.04 kg

For a larger sample, we set the Drive Type high. Example starting calibration Drive Type:

As there is only minor beneﬁt in changing the ﬁnal drive sprocket for calibration, we leave it as is.

Examine the transmission for Standard vs. Seed Rate Reduction/

Operate crank/gauge wheel for one tenth hectare:

CalibrationRevs

Weigh the collected seed plus container(s):

GrossWeight

Example ﬁnal drive sprocket:

20T

Example transmission: Rate Reduction not installed:

Standard

Example:

162 revolutions (

⁄

of 1622)

Example:

GrossWeight = 4.2 kg

Obtain the net sample weight: Example:

NetSample GrossWeight ContainerWeight–=

2.16 = 4.2 - 2.04, or: NetSample = 2.16 kg

Determine the net sample weight per cup: Example:

NetPerCup

NetSample

---------------------------------------

SampledRows

2.16 ÷ 3, or: NetPerCup = 0.72 kg

Scale the sample to drill-wide: Example:

NetFullWidth NetPerCup 13×=

93.5 = 0.72x 13, or: NetFullWidth = 9.35 kg

Scale the sample to a full hectare: Example:

NetPerHa NetFullWidth 10×=

93.5 = 9.35x 10, or: NetPerHa = 93.5 kg/ha

Look up the number of meter shaft revolutions per ha:

CalCharRevs

for the current Drive Type, ﬁnal sprocket and transmission conﬁguration.

Example:

Drive Type 2, 20T and Standard is:

342 cup revolutions per ha.

CalChartRevs = 342

Detemine the cup rate for this seed mix: Example:

NetPerHa

WeightPerRev

--------------------------------------

CalChartRevs

Determine the number of revolutions required for the target ﬁeld rate weight metered per shaft revolution:

TetRatearg

TetRevsarg

------------------------------------------

WeightPerRev

Look up the Drive Type and ﬁnal sprocket for

TargetRevs

0.273 = 93.5 ÷ 342, or: WeightPerRev = 0.273 kg

Example:

146 = 40 ÷ 0.277, or: TargetRevs = 146

Example:

Drive Type: 1 Final Sprocket: 23 T

151-143B Table of Contents Main Box Rates 2011-10-21

Page 47

Great Plains Manufacturing, Inc. Table of Contents Main Box Rates Appendix 45

Metric Native Grass Shaft Rates

These charts are used for calibration, providing rotations of meter shaft per ha. They are not seed rate charts.

For instructions, see page 17. For charts in U.S. customary units, see page 20.

Metric Standard Shaft Rates

Native Grass Driven Sprocket (Standard Rate)

Drive Type

1 238 222 208 196 185 175 167 159 151 145 2 489 456 428 403 380 360 342 326 311 298 3 734 685 642 604 571 540 513 489 467 446 4 1197 1117 1047 985 931 882 838 798 761 728

14T 15T 16T 17T 18T 19T 20T 21T 22T 23T

Native Grass Cup Revolutions Per Hectare

Metric Shaft Rates with Seed Rate Reduction

Native Grass Driven Sprocket (with Rate Reduction Kit)

Drive Type

1 134 125 118 111 105 99.1 94.1 89.6 85.5 81.8 2 276 258 242 228 215 204 193 184 176 168 3 415 387 363 341 322 305 290 276 264 252 4 676 631 592 557 526 498 473 451 430 412

14T 15T 16T 17T 18T 19T 20T 21T 22T 23T

Native Grass Cup Revolutions Per Hectare

32343C

32343D

2011-10-21 Table of Contents Main Box Rates 151-143B

Page 48

Brome Seed Rates, Metric

For instructions, see page 21.

For charts in U.S. customary units, see page 23.

Metric Standard Brome Rates

Metric

Drive

Type

1 9.6 9.1 8.5 8.1 7.6 7.2 6.8 6.6 6.3 6.1

219.818.517.516.515.614.814.113.512.912.3

329.727.826.224.823.422.321.220.319.418.5

448.445.442.740.438.236.334.533.031.630.3

15 16 17 18 19 20 21 22 23 24

Native Grass Driven Sprocket (Standard Rate)

Brome Grass Seeding Rate in Kilograms per Hectare

32336C

Metric Reduced Brome Rates

Metric

Drive

Type

1 5.6 5.3 4.9 4.7 4.4 4.2 4.0 3.8 3.6 3.5 2 11.5 10.7 10.1 9.5 9.0 8.6 8.2 7.8 7.5 7.1

317.216.115.214.413.612.912.311.811.210.7

428.126.324.723.422.221.020.019.118.317.5

15 16 17 18 19 20 21 22 23 24

Native Grass Driven Sprocket (with Rate Reduction Kit)

Brome Grass Seeding Rate in Kilograms per Hectare

32336D

Great Plains Manufacturing, Inc.

Corporate Ofﬁce: P.O. Box 5060

Salina, Kansas 67402-5060 USA