Great Plains 1205NT User Manual
Manufacturing, Inc.
www.greatplainsmfg.com
Seed, Small Seeds and
Fertilizer Rate Charts
The following pages are to assist in the proper setting of seeding and fertilizer rates for the 1205NT End-Wheel, No-Till Drill.
The rates indicated in the charts are approximate values. To assure the
most accurate seeding rate it is recommended that the drill be calibrated for
the desired seed at the time of planting.
© Copyright 2007 Printed 04/12/2007 150-131B
Table of Contents
Great Plains Mfg., Inc.
Main Seed Box Planting.....................................1
Select Drive Type.........................................................1
Set Seed-Rate Handle.................................................1
Position Seed Cup Doors.............................................2
Checking Main Box Seed Rate....................................2
Rate Charts, Main Seed Box ....................................... 4
Alfalfa or Rape .........................................................4
Barley (1 of 3) ..........................................................4
Buckwheat ...............................................................5
Buffalograss (1 of 4)................................................. 5
Flax or Sudan........................................................... 6
Millet......................................................................... 6
Milo ..........................................................................6
Oats .........................................................................7
Peas.........................................................................7
Pinto Beans.............................................................. 7
Rice, Short Grain (1 of 2).........................................7
Rice, Long Grain (1 of 4).......................................... 8
Rye........................................................................... 9
Soybeans (1 of 4)..................................................... 9
Sunflower...............................................................10
Wheat (1 of 2) ........................................................10
Wheatgrass............................................................11
Small Seeds Planting.......................................12
Small Seeds Seed Rate Charts.................................13
Alfalfa, Red Alsike, Crimson Clover....................... 13
Kentucky Bluegrass,
Fescue, Annual Rye Grass................................13
Bermuda, Red Top, Lespedeza Unhulled,
Sercia, Sand, Weeping Love Grass...................13
Red & Sweet Clover, Lespedeza Hulled................13
Orchard Grass .......................................................14
Millet, Reed Canary ...............................................14
Ladino Clover, Canary Grass,
Timothy, Canola.................................................14
Birdsfoot, Trefoil, Sudan ........................................14
Fertilizer Rate................................................... 15
Fertilizer Rate Charts.................................................16
Rates in Pounds per Acre......................................16
Density Conversion Charts.................................... 16
Metric Charts....................................................17
Metric Rate Charts, Main Seed Box .......................... 17
Alfalfa or Rape....................................................... 17
Barley (1 of 3) ........................................................ 17
Buckwheat ............................................................. 18
Buffalograss (1 of 4)............................................... 18
Flax or Sudan......................................................... 19
Millet....................................................................... 19
Milo ........................................................................ 20
Oats ....................................................................... 20
Peas....................................................................... 20
Pinto Beans ........................................................... 20
Rice, Short Grain (1 of 2).......................................21
Rice, Long Grain (1 of 4)........................................ 21
Rye ........................................................................ 22
Soybeans (1 of 4)................................................... 22
Sunflower...............................................................23
Wheat (1 of 2)........................................................ 24
Wheatgrass............................................................ 24
Metric Rate Charts, Small Seeds Box ....................... 25
Alfalfa, Red Alsike, Crimson Clover....................... 25
Kentucky Bluegrass,
Fescue, Annual Rye Grass................................ 25
Bermuda, Red Top, Lespedeza Unhulled,
Sercia, Sand, Weeping Love Grass...................25
Red & Sweet Clover, Lespedeza Hulled................ 25
Orchard Grass ....................................................... 26
Millet, Reed Canary ............................................... 26
Ladino Clover, Canary Grass,
Timothy, Canola.................................................26
Birdsfoot, Trefoil, Sudan ........................................ 26
Metric Fertilizer Rate Charts...................................... 27
Metric Rates in Kilograms per Hectare.................. 27
Density Conversion Charts.................................... 27
© Copyright 2005, 2006, 2007 All rights Reserved
Great Plains Manuf acturing,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. reserv esthe rightto 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.
The following are trademarks of Great Plains Mfg., Inc.: Application Systems, Ausherman, Land Pride, Great Plains
All other brands and product names are trademarks or registered trademarks of their respective holders.
150-131B 04/12/2007
Great Plains Manufacturing, Incorporated Tr ademarks
Printed in the United States of America.
Great Plains Mfg., Inc.
Main Seed Box Planting
Calibrating the seeding rate requires four steps:
1. selecting one of four drive types,
2. setting the seed-rate handle,
3. positioning the feed-cup door, and
4. checking the seed rate.
Refer to the seed rate charts beginning on page 4.
These charts list the proper drive type and seed-ratehandle settings for various seeds and seeding rates.
The seed rate charts are based on cleaned, untreated
seed of average size and test weight. The rates are
based on 295/75/R22.5 rib implement tires. Many factors will affect seeding rates including foreign material,
seed treatment, seed size, field conditions, tire pressure and test weight. Minor adjustments likely will be
needed. Set and check the seeding rate using the procedures on page 2, then adjust the rate as necessary.
2
1
Figure 1
Gearbox Handle Adjustment
1
14742
Select Drive Type
Refer to Figure1
The gearbox is designed to give you a variety of drive
speeds for different types of seeds and rates. It is a linear shift pattern design with constant mesh gearing
and totally sealed to keep dirt out. No lubrication is
required unless service is needed.
The gearbox brass indicator plate is positioned so the
side with “1” is closest to the center of the drill.
To set the gearbox move the selector handle until
the desired drive type appears in the window on the handle
1
2
Set Seed-Rate Handle
Refer to Figure2
The seed rate handle controls the percent engagement of the seed sprocket in each seed cup.
1. Loosen wing nut under handle.
2. Set indicator to just past value from seed rate
chart.
3. Tighten wing nut.
1
2
Gear Box Ratios
Setting 2 is 2.06 Times Faster Than 1
Setting 3 is 3.08 Times Faster Than 1
Setting 4 is 5.03 Times Faster Than 1
2
1
Figure 2
Seed Rate Handle
04/12/2007 150-131B
12927
2
Position Seed Cup Doors
Refer to Figure3,
which depicts the seed cup door handle in position .
At each seed box seed tube, adjust the seed cup door
handle for the seed size.
The handle has three normal operating position
detents:
Note: Handleposition isused forcleanout,not plant-
4
(top detent) is for the smallest seeds.
1
Use it for wheat and similar small seeds.
(middle detent) is for larger seeds.
2
Use it for soybeans and similar larger seeds.
(bottom detent) is for oversize or fragile seeds.
3
If you experience excessive cracking with
setting , use setting .
ing.If set to this position with seed loaded, itmay
be difficult to reset it to a normal operating position.
2 3
5
3
4
1
2
3
Figure 3
Seed Cup Door Handle
Great Plains Mfg., Inc.
5
26211
Checking Main Box Seed Rate
Note: For drills built after October 1, 2005,
use the gauge wheel tire or supplied calibration
crank to calibrate.
For drills built before October 1, 2005,
use the gauge wheel to calibrate or order the calibration crank kit available through your Great
Plains Dealer.
1. To calibrate, use either the left hand gauge wheel
or the supplied calibration crank. If using the calibration crank, attach crank to coupler on gauge
wheel jackshaft with retaining pin and disengage
lockout on drive wheel.
2. Rotate left hand gauge wheel or calibration crank
to see that feed cups and drive are working properly and are free from foreign matter.
3. To adjust seeding rate, decide which drive type
(gearbox) setting you need from the seeding
charts beginning on page 4. Set the gearbox.
Rotate drive tire or calibration crank a few turns to
confirm gearbox has engaged.
4. Record weight of an empty container large enough
to hold seed metered for one acre.
5. Place several pounds of seed over three seed
cups on an outside end of drill box. Pull seed
tubes off of these three openers.
Figure 4
1205NT Calibration Crank
23386
150-131B 04/12/2007
Great Plains Mfg., Inc.
3
6. Turn drive gauge wheel or calibration crank several times to fill seed cups with seed. Turn wheel
or crank until seed falls to the ground from each
cup.
7. Rotate drive gauge wheel 346 rotations. This is
equal to one acre.
Note: Youcanalsorotate the gauge wheel jackshaftby
means of a wrench or socket. If rotating gauge
wheel jackshaft, disengage the lockout on the
drivewheel andusesame numberofrotations as
for rotating drive wheel.
8. Check that the three seed cups have plenty of
seed coming into them.
9. Weigh metered seed. Subtract initial weight of
container. Divide by three. Multiply by the number
of openers on your drill to determine total pounds
seeded per acre. If this figure is different than
desired, set your seed rate adjustment handle
accordingly.
Note: Youmaywanttorepeat the calibration procedure
if your results vary greatly from seed rate chart.
10. 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 seeding rate slightly to compensate for field conditions.
Drill
Model
1205NT 346 855
Revolutions for One
Acre Hectare
.
MeasuredSeed EmptyContainer–
----------------------------------------------------------------------------------
PoundsPerSeedCup NumberOfOpeners× PoundsPerAcre=
3
PoundsPerSeedCup=
04/12/2007 150-131B
4
Great Plains Mfg., Inc.
Rate Charts, Main Seed Box
This section is in U.S. customary units.
See page 17 for Metric rates.
Alfalfa or Rape
(based on 60 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 5 7 10 13 16 20 23 27 32 35 38 43 47 51 54 59 63 68 70 72
7.5 inch 04 7101215182225293336404347515559636567
8 inch 0 4 6 9 12 14 17 20 24 28 31 34 37 41 44 47 52 55 60 61 63
10 inch 03 57912141619222527303335384144484950
Barley (1 of 3)
(based on 51 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 4 7 9 12 16 19 22 26 30 33 37 41 45 49 53 56 59 62 63 63
7.5 inch 0 4 6 9 12 15 18 21 24 28 31 35 38 42 46 49 52 55 58 59 59
8 inch 0 3 6 8 11 14 17 20 23 26 29 32 36 40 43 46 49 52 54 55 55
10 inch 0 3 5 6 9 11 13 16 18 21 23 26 29 32 34 37 39 42 44 44 44
Seed Rate Handle Setting
Seed Rate Handle Setting
Barley (2 of 3)
(based on 51 pounds/bushel)
Drive Type
2 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 7 14 19 26 32 39 46 53 61 68 75 82 89 97 105 114 122 130 132 134
7.5 inch 0 7 13 17 24 30 36 43 49 57 64 70 77 83 91 98 106 114 121 123 125
8 inch 0 7 12 16 22 28 34 40 46 53 60 65 72 78 85 92 100 107 114 116 117
10 inch 0 5 10 13 18 22 27 32 37 43 48 52 58 63 68 74 80 85 91 92 94
Seed Rate Handle Setting
Barley (3 of 3)
(based on 51 pounds/bushel)
Drive Type
4 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 18 33 45 63 78 95 113 130 149 166 182 201 218 238 257 278 299 318 323 328
7.5 inch 0 17 31 42 58 72 88 105 121 139 155 170 188 204 222 240 260 279 297 301 306
8 inch 0 16 29 40 55 68 83 99 113 130 146 160 176 191 208 225 244 261 278 282 287
10 inch 0 13 23 32 44 54 66 79 91 104 117 128 141 153 167 180 195 209 222 226 230
Seed Rate Handle Setting
150-131B 04/12/2007
Great Plains Mfg., Inc.
Rate Charts, Main Seed Box, continued...
Buckwheat
(based on 48 pounds/bushel)
Drive Type
3 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 10 18 25 36 45 56 67 79 92 106 116 129 142 154 168 179 192 205 207 210
7.5 inch 0 9 17 24 34 42 52 62 74 85 99 109 120 132 144 156 167 179 192 194 196
8 inch 0 8 16 22 31 39 49 59 69 80 92 102 113 124 135 147 157 168 180 181 183
10 inch 0 7 13 18 25 31 39 47 55 64 74 81 90 99 108 117 126 134 144 145 147
Buffalograss (1 of 4)
(based on 23 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 1 2 3 4 6 7 9 10 12 13 15 16 18 19 20 21 21 22 22 22
7.5 inch 0 1 2 3 4 5 7 8 10 11 13 14 15 17 18 19 20 20 20 20 20
8 inch 0 1 2 3 4 5 6 8 9 10 12 13 14 16 17 18 18 19 19 19 19
10 inch 0 1 2 2 3 4 5 6 7 8 9 11 12 12 13 14 15 15 15 15 15
Seed Rate Handle Setting
Seed Rate Handle Setting
5
Buffalograss (2 of 4)
(based on 23 pounds/bushel)
Drive Type
2 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 3 4 7 9 12 15 18 21 24 28 31 34 37 39 41 43 44 45 45 44
7.5 inch 024 6811141720232629323436384041424241
8 inch 0 2 4 6 8 10 13 16 19 21 24 27 30 32 34 36 38 39 39 39 39
10 inch 0 2 3 5 6 8 10 13 15 17 19 22 24 26 27 29 30 31 31 31 31
Seed Rate Handle Setting
Buffalograss (3 of 4)
(based on 23 pounds/bushel)
Drive Type
3 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 5 7 10 13 17 21 26 31 36 41 46 50 55 59 62 65 67 69 69 69
7.5 inch 0 5 7 9 12 16 20 24 29 34 38 43 47 51 55 58 61 63 64 65 64
8 inch 0 4 6 9 12 15 19 23 27 31 36 40 44 48 51 54 57 59 60 61 60
10 inch 0357 912151822252932363841444647484848
Seed Rate Handle Setting
04/12/2007 150-131B
6
Great Plains Mfg., Inc.
Rate Charts, Main Seed Box, continued...
Buffalograss (4 of 4)
(based on 23 pounds/bushel)
Drive Type
4 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 8 11 16 22 28 36 43 50 59 67 75 82 89 96 101 106 110 112 113 112
7.5 inch 0 7 11 15 20 26 33 40 47 55 62 70 77 83 90 95 99 102 104 105 104
8 inch 0 7 10 14 19 24 31 37 44 51 58 65 72 78 84 89 93 96 98 99 98
10 inch 068111520253035414752586367717477787978
Flax or Sudan
(based on 55 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 3 7 10 14 17 21 24 28 32 36 39 43 47 51 55 60 65 70 71 73
7.5 inch 0 3 7 9 13 16 19 23 26 30 34 37 40 44 47 52 56 61 66 67 68
8 inch 0 3 6 9 12 15 18 21 25 28 31 34 37 41 44 49 52 57 61 62 64
10 inch 0 2 5 7 10 12 15 17 20 22 25 27 30 33 35 39 42 45 49 50 51
Seed Rate Handle Setting
Seed Rate Handle Setting
Millet
(based on 60 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 4 7 10 13 17 20 23 27 31 34 38 42 45 49 53 57 61 65 66 67
7.5 inch 0 4 7 9 13 16 19 22 25 29 32 35 39 42 46 49 53 57 61 62 63
8 inch 0 4 6 9 12 15 18 20 24 27 30 33 36 39 43 46 50 53 57 58 59
10 inch 0357 912141619212426293234374043464647
Seed Rate Handle Setting
Milo
(based on 64 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 4 8 11 15 19 24 29 34 38 44 49 54 59 64 69 74 79 84 86 88
7.5 inch 047101418222731364145505560656973788082
8 inch 0 4 7 10 13 17 21 25 29 34 39 43 47 52 56 61 65 69 73 75 77
10 inch 0 3 5 8 11 14 17 20 23 27 31 34 38 41 45 49 52 55 59 60 61
Seed Rate Handle Setting
150-131B 04/12/2007
Great Plains Mfg., Inc.
Rate Charts, Main Seed Box, continued...
Oats
(based on 37 pounds/bushel)
Drive Type
3 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 5 10 15 21 27 33 40 47 54 62 68 76 82 90 97 104 111 119 120 120
7.5 inch 0 4 10 14 19 25 31 37 44 51 58 64 70 77 84 90 97 104 111 112 112
8 inch 0 4 9 13 18 24 29 35 41 47 54 60 66 72 78 85 91 97 104 105 105
10 inch 037101419232833384348535863687378838484
Peas
(based on 61 pounds/bushel)
Drive Type
3 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 0 16 29 45 59 72 87 102 118 132 145 160 173 187 202 215 228 241 243 244
7.5 inch 0 0 15 27 42 55 67 82 95 110 123 136 149 161 175 188 201 213 225 226 227
8 inch 0 0 14 26 39 52 63 76 89 103 116 127 140 151 164 177 188 200 211 212 213
10 inch 0 0 11 20 31 41 50 61 71 82 93 102 112 121 131 141 151 160 169 170 171
Seed Rate Handle Setting
Seed Rate Handle Setting
7
Pinto Beans
(based on 51 pounds/bushel)
Drive Type
1 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 0 7 11 15 20 25 30 35 40 45 50 55 59 64 69 73 78 83 83 83
7.5 inch 007101419242833384247515560656873777777
8 inch 00 6101318222731354044485256616468727272
10 inch 0 0 5 8 10 14 18 21 25 28 32 35 38 41 45 49 51 54 58 58 58
Seed Rate Handle Setting
Rice, Short Grain (1 of 2)
(based on 43 pounds/bushel)
Drive Type
3 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Rows Seed Rate in Pounds Per Acre
7 inch 0 9 16 24 33 39 48 54 63 72 82 92 101 110 119 127 134 142 149 149 149
7.5 inch 0 9 14 23 31 37 44 51 59 67 77 85 94 102 111 118 125 132 139 139 139
8 inch 0 8 14 21 29 34 42 48 55 63 72 80 88 96 104 111 117 124 131 131 131
10 inch 0 7 11 17 23 27 33 38 44 50 57 64 70 77 83 89 94 99 105 105 105
Seed Rate Handle Setting
04/12/2007 150-131B
Loading...