Seed and Fertilizer Rate Charts for
the YP3025A, YP4025A and
YP4425A 30, 40 and 44-Foot
3-Section Yield-Pro® Planters with
Air-Pro® seed meters
The following pages are to assist in the proper setting of seeding and
fertilizer rates for the 30-foot (9 m), 40-foot (12 m) and 44-foot (13 m)
three-section Yield-Pro
mostaccurate seeding rates,Great Plainsrecommends checking
singulated rates.
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.
2014-05-13Cover401-627B
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, Discovator, Great Plains, Land Pride, MeterCone, Nutri-Pro, Seed-Lok, Solid Stand,
Great Plains Manufacturing, Inc.Table of ContentsIntroduction1
Introduction
This manual covers the following tasks for 30- and
40-foot three-section Yield-Pro® Planters equipped with
Air-Pro
• setting and checking seed rate for singulated crops
• applying liquid fertilizer from optional tanks on-board
This manual is your guide to planter adjustments for
achieving specific seed population targets. It also
includes information you may need to properly setup and
adjust a separately provisioned fertilizer tank and pump
system.
Although some setup/adjustment material herein is
repeated from the Operator’s Manual, you need to be
thoroughly familiar with planter operations and
adjustments before applying this Seed Rate manual and
its table data.
2YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
Quick Start Guides (QSG)
110011552YP3025A-1230, YP3025A-1270
110011558YP3025A-16TR36
110011553YP3025A-1820
110011554YP3025A-2315, YP3025A-2335,
YP3025A-2415
110011557YP3025A-24TR, YP3025A-24TR70,
YP3025A-24TR75
110011555YP3025A-3610, YP3025AR-3610
110011537YP4025A-1630, YP4025A-1670
110011538YP4025A-2420, YP4425A-2422
110011539YP4025A-3115, YP4025A-3135
110011542YP4025A-3215, YP4025A-32TR,
YP4025A-32TR70
110011540YP4025A-4810, YP4025AR-4810
Figure 2
Air-Pro® Seed Meter
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401-627BTable of Contents2014-05-13
Great Plains Manufacturing, Inc.Table of ContentsRate Setting Overview3
Rate Setting Overview
Setting Planting Rate
There are five or six steps to obtaining the desired
number of seeds per acre, depending on row
configuration. This data applies to the Air-Pro
when planting at one
1. For your crop, determine your intended population, in
seeds/acre or seeds/hectare. If you know only the
seed spacing or pounds/acre (kg/hectare), consult
the charts on page 3 through page 5.
2. For your crop, population and desired field speed,
verify the suitability and setup of your seed disk:
See “Air-Pro
3. Set initial seed inlet shutter per seed rate chart.
Set initial meter pressurization per page 9, 10.
4. Sprocket index for staggered twin-row
Twin-row planters, with certain crops, get maximum
benefit with precise seed spacing between adjacent
rows. See “Indexing Fine Adjustment” on page 25.
5. Set meter rate
This is done via the seed monitor. Once data about
your planter is entered, you select the seed rate
directly. Consult the manual for the seed monitor.
6. Check planting rate
See “Checking Planting Rate” on page 11.
a. Volumetric planting (more than one seed per cell), is not
covered by this manual.
a
seed per disc cell.
®
Meter Disk Selection” on page 6.
®
meter
Setting Fertilizer Rate
If your planter is equipped with one or both optional
fertilizer manifold systems, it does not include the tank.
If the planter has a Type 2b (formerly referred to as a
“starter”) manifold, it may rely on an off-planter pump, or
may use one or two ground drive pumps on the planter.
See “Ground Drive Fertilizer Rate” on page 51 for
ground drive pump configuration.
If the planter has a Type 3
“hi rate”) manifold, it relies on an off-planter pump,
typically the pump on a Great Plains PFC1600 or
PFC2000 tank cart.
Rate setting for the cart pump is found in the cart’s
Operator manual.
Rate is controlled by the pump. Consistent distribution
requires using the correct size orifices in the manifolds. If
the orifice size is too large, flow may not be even across
all rows. If the orifice size is too small, material may be
dumped at the relief valve.
See “Fertilizer Rate” on page 48 for orifice information.
b. Type 2 and Type 3 are described in the YP3025A,
YP4025A and YP4425A Operator manuals, under Setup
topic “Fertilizer Connections”.
b
(formerly referred to as a
Population Reference Information
Seeds per Unit
If only pounds/acre (or only kilograms/hectare) is known,
obtain the population count by multiplying the weight by
the “Kernels per pound” value from the seed container.
Example: Milo
Target rate:4.5 pounds/acre
Seed density:14500 seeds/pound
Population:= Rate × Density
= 4.5 × 14500, or:
65250 seeds/acre
Seed Spacing
If only seed spacing is known, use the tables on the next
five pages to determine population.
2014-05-13Table of Contents401-627B
Kernels Per Pound
80,000 SeedKernels80,000 SeedKernels
Bag Weightper Pound Bag Weightper Pound
67.5 lbs1,18545.0 lbs1,778
65.0 lbs1,23142.5 lbs1,882
62.5 lbs1,28040.0 lbs2,000
60.0 lbs1,33337.5 lbs2,133
57.5 lbs1,39135.0 lbs2,286
55.0 lbs1,45532.5 lbs2,462
52.5 lbs1,52430.0 lbs2,667
50.0 lbs1,60027.5 lbs2,909
47.5 lbs1,68425.0 lbs3,200
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4YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
Spacing (U.S. Customary units, page 1 of 2)
Metric Spacing is on page 62.
Row Spacings
Twin Row Twin Row Twin Row Twin Row
30in36in38in40in
Plant10in15in20in22in30in36in38in40in
Population RowsRowsRowsRowsRowsRowsRowsRows
(seeds/acre)
14 000
15 000
16 000
17 000
18 000
19 000
20 000
21 000
22 000
23 000
24 000
25 000
26 000
27 000
28 000
29 000
30 000
31 000
32 000
33 000
34 000
35 000
36 000
37 000
38 000
39 000
40 000
41 000
42 000
43 000
44 000
45 000
46 000
47 000
48 000
49 000
50 000
44.829.924.923.622.420.414.912.411.811.2
41.827.923.222.020.919.013.911.611.010.5
39.226.121.820.619.617.813.110.910.39.8
36.924.620.519.418.416.812.310.29.79.2
34.823.219.418.317.415.811.69.79.28.7
33.022.018.317.416.515.011.09.28.78.3
31.420.917.416.515.714.310.58.78.37.8
29.919.916.615.714.913.610.08.37.97.5
28.519.015.815.014.313.09.57.97.57.1
27.318.215.214.413.612.49.17.67.26.8
26.117.414.513.813.111.98.77.36.96.5
25.116.713.913.212.511.48.47.06.66.3
24.116.113.412.712.111.08.06.76.36.0
23.215.512.912.211.610.67.76.56.15.8
22.414.912.411.811.210.27.56.25.95.6
21.614.412.011.410.89.87.26.05.75.4
20.913.911.611.010.59.57.05.85.55.2
20.213.511.210.610.19.26.75.65.35.1
19.613.110.910.39.88.96.55.45.24.9
19.012.710.610.09.58.66.35.35.04.8
18.412.310.29.79.28.46.15.14.94.6
17.911.910.09.49.08.16.05.04.74.5
17.411.69.79.28.77.95.84.84.64.4
17.011.39.48.98.57.75.74.74.54.2
16.511.09.28.78.37.55.54.64.34.1
16.110.78.98.58.07.35.44.54.24.0
15.710.58.78.37.87.15.24.44.13.9
15.310.28.58.17.67.05.14.24.03.8
14.910.08.37.97.56.85.04.13.93.7
14.69.78.17.77.36.64.94.13.83.6
14.39.57.97.57.16.54.84.03.83.6
13.99.37.77.37.06.34.63.93.73.5
13.69.17.67.26.86.24.53.83.63.4
13.38.97.47.06.76.14.43.73.53.3
13.18.77.36.96.55.94.43.63.43.3
12.88.57.16.76.45.84.33.63.43.2
12.58.47.06.66.35.74.23.53.33.1
Seed Spacing (inches)
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Great Plains Manufacturing, Inc.Table of ContentsRate Setting Overview5
Spacing (U.S. Customary units, page 2 of 2)
Row Spacings
Twin Row Twin Row Twin Row Twin Row
30in36in38in40in
Plant10in15in20in22in30in36in38in40in
Population RowsRowsRowsRowsRowsRowsRowsRows
(seeds/acre)Seed Spacing (inches)
50 00012.58.47.06.66.35.74.23.53.33.1
55 00011.47.66.36.05.75.23.83.23.02.9
60 00010.57.05.85.55.24.83.52.92.82.6
65 0009.76.45.45.14.84.43.22.72.52.4
70 0009.06.05.04.74.54.13.02.52.42.2
75 0008.45.64.64.44.23.82.82.32.22.1
80 0007.85.24.44.13.93.62.62.22.12.0
85 0007.44.94.13.93.73.42.52.01.91.8
90 0007.04.63.93.73.53.22.31.91.81.7
95 0006.64.43.73.53.33.02.21.81.71.7
100 0006.34.23.53.33.12.92.11.71.71.6
105 0006.04.03.33.13.02.72.01.71.61.5
110 0005.73.83.23.02.92.61.91.61.51.4
115 0005.53.63.02.92.72.51.81.51.41.4
120 0005.23.52.92.82.62.41.71.51.41.3
125 0005.03.32.82.62.52.31.71.41.31.3
130 0004.83.22.72.52.42.21.61.31.31.2
135 0004.63.12.62.42.32.11.51.31.21.2
140 0004.53.02.52.42.22.01.51.21.21.1
145 0004.32.92.42.32.22.01.41.21.11.1
150 0004.22.82.32.22.11.91.41.21.11.0
155 0004.02.72.22.12.01.81.31.11.11.0
160 0003.92.62.22.12.01.81.31.11.01.0
165 0003.82.52.12.01.91.71.31.11.01.0
170 0003.72.52.01.91.81.71.21.01.00.9
175 0003.62.42.01.91.81.61.21.00.90.9
180 0003.52.31.91.81.71.61.21.00.90.9
185 0003.42.31.91.81.71.51.10.90.90.8
190 0003.32.21.81.71.71.51.10.90.90.8
195 0003.22.11.81.71.61.51.10.90.80.8
200 0003.12.11.71.71.61.41.00.90.80.8
225 0002.81.91.51.51.41.30.90.80.70.7
250 0002.51.71.41.31.31.10.80.70.70.6
275 0002.31.51.31.21.11.00.80.60.60.6
300 0002.11.41.21.11.01.00.70.60.60.5
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6YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
Air-Pro® Meter Disk Selection
CORNCORN
24 Cell Disk40 Cell Disk
817 - 794C Corn Round Large 817 - 796C Corn Round Large
817 - 795C Corn Round Small 817 - 797C Corn Round Small
817 - 836C Corn Flat Large 817 - 838C Corn Flat Large
( Sweet Corn plants in Round Corn disks )
Seed Size Recommendations.
Corn Round LargeSeeds per Pound
1700 (or fewer)
Unit Weight (or heavier)
47 pounds
Corn Round SmallSeeds per Pound
1650 (or more)
Corn Flat LargeSeeds per Pound
1650 (or fewer)
Corn Flat SmallSeeds per Pound
1650 (or more)
ATTENTION: This Corn is planted with the Corn Round Small Disks!!!!!!
40 in. Rows
38 in. Rows
36 in. Rows
30 in. Rows
22 in. Rows
Twin Row 40 in.
20 in. Rows
Twin Row 38 in.
Twin Row 36 in.
Twin Row 30 in.
15 in. Rows
Below 19 400 Population @ 5.5 MPH24 Cell Disk
Above 19 400 Population @ 5.5 MPH40 Cell Disk
Below 20 500 Population @ 5.5 MPH24 Cell Disk
Above 20 500 Population @ 5.5 MPH40 Cell Disk
Below 21 600 Population @ 5.5 MPH24 Cell Disk
Above 21 600 Population @ 5.5 MPH40 Cell Disk
Below 25 900 Population @ 5.5 MPH24 Cell Disk
Above 25 900 Population @ 5.5 MPH40 Cell Disk
Below 35 300 Population @ 5.5 MPH24 Cell Disk
Above 35 300 Population @ 5.5 MPH40 Cell Disk
Below 38 900 Population @ 5.5 MPH24 Cell Disk
Above 38 900 Population @ 5.5 MPH40 Cell Disk
Below 40 900 Population @ 5.5 MPH24 Cell Disk
Above 40 900 Population @ 5.5 MPH40 Cell Disk
Below 43 200 Population @ 5.5 MPH24 Cell Disk
Above 43 200 Population @ 5.5 MPH40 Cell Disk
Below 51 800 Population @ 5.5 MPH24 Cell Disk
Above 51 800 Population @ 5.5 MPH40 Cell Disk
Unit Weight (or lighter)
48.5 pounds
Unit Weight (or lighter)
48.5 pounds
Unit Weight (or lighter)
48.5 pounds
(Recommended)
CANOLA
Seed Size Recommendations.817 - 991C250 Cell Disk
This disk should plant all seed sizes and row spacings for Canola & Mustard
COTTON
Seed Size Recommendations.817 - 857C60 Cell Disk
This disk should plant all seed sizes and row spacings for Cotton.
36049K
401-627BTable of Contents2014-05-13
Great Plains Manufacturing, Inc.Table of ContentsRate Setting Overview7
These disks should plant all seed sizes of Milo, Pelletized Sugar Beets & Tillage Radish
(Recommended
40 in. Rows
38 in. Rows
36 in. Rows
30 in. Rows
22 in. Rows
Twin Row 40 in.
20 in. Rows
Twin Row 38 in.
Twin Row 36 in.
Twin Row 30 in.
15 in. Rows
10 in. Rows
Below 48 300 Population @ 6 MPH65 Cell Disk
Above 48 300 Population @ 6 MPH130 Cell Disk
Below 50 800 Population @ 6 MPH65 Cell Disk
Above 50 800 Population @ 6 MPH130 Cell Disk
Below 53 600 Population @ 6 MPH65 Cell Disk
Above 53 600 Population @ 6 MPH130 Cell Disk
Below 64 300 Population @ 6 MPH65 Cell Disk
Above 64 300 Population @ 6 MPH130 Cell Disk
Below 87 700 Population @ 6 MPH65 Cell Disk
Above 87 700 Population @ 6 MPH130 Cell Disk
Below 96 500 Population @ 6 MPH65 Cell Disk
Above 96 500 Population @ 6 MPH130 Cell Disk
Below 101 600 Population @ 6 MPH65 Cell Disk
Above 101 600 Population @ 6 MPH130 Cell Disk
Below 107 200 Population @ 6 MPH65 Cell Disk
Above 107 200 Population @ 6 MPH130 Cell Disk
Below 128 700 Population @ 6 MPH65 Cell Disk
Above 128 700 Population @ 6 MPH130 Cell Disk
Below 193 000 Population @ 6 MPH65 Cell Disk
Above 193 000 Population @ 6 MPH130 Cell Disk
817 - 798C84 Cell DiskSOYBEAN403 - 551D168 Cell Disk
Seed Size Recommendations.( Small Edible Beans)
These disks should plant all seed sizes of Soybeans.
Small edible beans (navy, black jack, black eye peas, etc) will plant with this disk also.
(Recommended
40 in. Rows
38 in. Rows
36 in. Rows
30 in. Rows
22 in. Rows
Twin Row 40 in.
20 in. Rows
Twin Row 38 in.
Twin Row 36 in.
Twin Row 30 in.
15 in. Rows
10 in. Rows
Below 76 900 Population @ 6 MPH84 Cell Disk
Above 76 900 Population @ 6 MPH168 Cell Disk
Below 81 000 Population @ 6 MPH84 Cell Disk
Above 81 000 Population @ 6 MPH168 Cell Disk
Below 85 500 Population @ 6 MPH84 Cell Disk
Above 85 500 Population @ 6 MPH168 Cell Disk
Below 102 500 Population @ 6 MPH84 Cell Disk
Above 102 500 Population @ 6 MPH168 Cell Disk
Below 139 800 Population @ 6 MPH84 Cell Disk
Above 139 800 Population @ 6 MPH168 Cell Disk
Below 153 800 Population @ 6 MPH84 Cell Disk
Above 153 800 Population @ 6 MPH168 Cell Disk
Below 161 900 Population @ 6 MPH84 Cell Disk
Above 161 900 Population @ 6 MPH168 Cell Disk
Below 170 900 Population @ 6 MPH84 Cell Disk
Above 170 900 Population @ 6 MPH168 Cell Disk
Below 205 100 Population @ 6 MPH84 Cell Disk
Above 205 100 Population @ 6 MPH168 Cell Disk
Below 307 700 Population @ 6 MPH84 Cell Disk
Above 307 700 Population @ 6 MPH168 Cell Disk
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2014-05-13Table of Contents401-627B
8YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
These disks should plant all seed sizes of Milo, Pelletized Sugar Beets & Tillage Radish
(Recommended
40 in. Rows
38 in. Rows
36 in. Rows
30 in. Rows
22 in. Rows
Twin Row 40 in.
20 in. Rows
Twin Row 38 in.
Twin Row 36 in.
Twin Row 30 in.
15 in. Rows
10 in. Rows
Below 48 300 Population @ 6 MPH65 Cell Disk
Above 48 300 Population @ 6 MPH130 Cell Disk
Below 50 800 Population @ 6 MPH65 Cell Disk
Above 50 800 Population @ 6 MPH130 Cell Disk
Below 53 600 Population @ 6 MPH65 Cell Disk
Above 53 600 Population @ 6 MPH130 Cell Disk
Below 64 300 Population @ 6 MPH65 Cell Disk
Above 64 300 Population @ 6 MPH130 Cell Disk
Below 87 700 Population @ 6 MPH65 Cell Disk
Above 87 700 Population @ 6 MPH130 Cell Disk
Below 96 500 Population @ 6 MPH65 Cell Disk
Above 96 500 Population @ 6 MPH130 Cell Disk
Below 101 600 Population @ 6 MPH65 Cell Disk
Above 101 600 Population @ 6 MPH130 Cell Disk
Below 107 200 Population @ 6 MPH65 Cell Disk
Above 107 200 Population @ 6 MPH130 Cell Disk
Below 128 700 Population @ 6 MPH65 Cell Disk
Above 128 700 Population @ 6 MPH130 Cell Disk
Below 193 000 Population @ 6 MPH65 Cell Disk
Above 193 000 Population @ 6 MPH130 Cell Disk
817 - 798C84 Cell DiskSOYBEAN403 - 551D168 Cell Disk
Seed Size Recommendations.( Small Edible Beans)
These disks should plant all seed sizes of Soybeans.
Small edible beans (navy, black jack, black eye peas, etc) will plant with this disk also.
(Recommended
40 in. Rows
38 in. Rows
36 in. Rows
30 in. Rows
22 in. Rows
Twin Row 40 in.
20 in. Rows
Twin Row 38 in.
Twin Row 36 in.
Twin Row 30 in.
15 in. Rows
10 in. Rows
Below 76 900 Population @ 6 MPH84 Cell Disk
Above 76 900 Population @ 6 MPH168 Cell Disk
Below 81 000 Population @ 6 MPH84 Cell Disk
Above 81 000 Population @ 6 MPH168 Cell Disk
Below 85 500 Population @ 6 MPH84 Cell Disk
Above 85 500 Population @ 6 MPH168 Cell Disk
Below 102 500 Population @ 6 MPH84 Cell Disk
Above 102 500 Population @ 6 MPH168 Cell Disk
Below 139 800 Population @ 6 MPH84 Cell Disk
Above 139 800 Population @ 6 MPH168 Cell Disk
Below 153 800 Population @ 6 MPH84 Cell Disk
Above 153 800 Population @ 6 MPH168 Cell Disk
Below 161 900 Population @ 6 MPH84 Cell Disk
Above 161 900 Population @ 6 MPH168 Cell Disk
Below 170 900 Population @ 6 MPH84 Cell Disk
Above 170 900 Population @ 6 MPH168 Cell Disk
Below 205 100 Population @ 6 MPH84 Cell Disk
Above 205 100 Population @ 6 MPH168 Cell Disk
Below 307 700 Population @ 6 MPH84 Cell Disk
Above 307 700 Population @ 6 MPH168 Cell Disk
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401-627BTable of Contents2014-05-13
Great Plains Manufacturing, Inc.Table of ContentsRate Setting Overview9
(y)
Meter Pressurization
Refer to the Operator Manual for the procedure for fine
tuning meter pressurization.
Start with pressures from below and on page 10, which
are based on crop, and for corn, seed shape and density.
Note: These are suggested initial (starting) pressures.
Use the seed monitor console to adjust them up or
down per the procedure in the YP3025A,
YP4025A and YP4425A Operator Manuals.
Corn: Reading a Pressure Chart (below, next page)
1. Pick the chart based on seed shape (flat, round).
Example: large round corn
2. Pick a line based on seed size (large, small).
Example: the right line below
3. Find the seed density on the bottom scale.
Example: 1260 seeds/pound
4. Read the suggested starting pressure on the left
scale, where the line (example shown as dotted
gray) intersects the density.
Example: 3.4 inches of water
Initial seed inlet Shutter for corn is: 3
Initial Meter Pressurization: Canola and Cotton
1.5 inches of water (any seed density)
Initial seed inlet Shutter: canola (1.5), cotton (2)
Initial Meter Pressurization: Milo
1.5 inches of water (all disk, any seed density)
Initial seed inlet Shutter: 1
Initial Meter Pressurization: Soybeans
2.0 inches of water (84 cell disk, any seed density)
3.0 inches of water (168 cell disk, any seed density)
Initial seed inlet Shutter: 2
Initial Meter Pressurization: Sunflower
(see page 62 for metric seed weights)
Disk: 817-851C SUNFLOWER OIL LARGE
8500 seeds/pound (or fewer)
8500 - 7000 s/lb1.25 inches of water
7000 - 5500 s/lb1.75 inches of water
5500 s/lb and fewer2.25 inches of water
Adjust pressure as needed for desired population.
Initial seed inlet Shutter: 2
Initial Meter Pressurization: Volumetric
Refer to the charts beginning on page 46.
Meter Pressure (in/water)
Meter Pressurization in inches of Water
4.5
3.5
2.5
1.5
0.5
4
3
2
1
5
0
25.8
Initial Meter Pressurization: Round Corn
Linear (Round Corn Large)
Linear (Round Corn Small)
Example
817-795C & 817-797C
Round Corn-Small
29.627.6
Disks
Pressure/Seed Comparison
Disks
817-794C & 817-796C
Round Corn-Large
Example
53.347.142.138.134.832.0
5
Meter Pressurization in inches of Water
4.5
4
3.5
Meter Pressure (in/water)
3
2.5
2
1.5
1
0.5
0
72.761.5
90011001300150017001900210023002500270029003100
88.9
Seeds Per Pound
Unit Weight (80K)
2014-05-13Table of Contents401-627B
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10YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
(y)
Initial Meter Pressurization: Flat Corn
Pressure/Seed Comparison
4.5
3.5
5
Linear (Flat Corn Large)
Linear (Flat Corn Small)
Disks
4
817-836C & 817-838C
Flat Corn-Large
5
4.5
4
3.5
Meter Pressurization in inches of Water
Meter Pressure (in/water)
Meter Pressure (in/water)
3
2.5
2
1.5
1
Disks
817-795C & 817-797C
Flat Corn-Small
Meter Pressurization in inches of Water
0.5
0
38.134.832.029.627.625.8
Seeds Per Pound
Unit Weight (80K)
47.142.1
53.3
Factory Default Air Control Channel Screens
Material 16 SetupControl Channel 2 Setup
61.5
3
2.5
2
1.5
1
0.5
0
90011001300150017001900210023002500270029003100
88.972.7
29726
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29801
Great Plains Manufacturing, Inc.Table of ContentsRate Setting Overview11
Checking Planting Rate
Singulated seed charts are based on cleaned and sized
seed singulated with the recommended disk. Extreme
seed size variations and foreign material can affect the
planting rate.
Any material difference between chart and field rates
implies a mechanical malfunction, a planter setup error
or extremely worn planter components. You can verify
your setup and planter performance by measuring seed
placement and spacing over a relatively short distance.
Figure 3
Furrow Check
29247
The columns to the right provide example data for a rate
check, in U.S. customary units and a similar example
metric units.
Checking Singulated Rates
1. Determine the sample distance to check. Find your
row spacing in the table at right.
For metric sample runs, see page 64.
2. Note the number of rows to sample. Adjust the
planting depth to a shallow setting on one or two
outside rows (per table). Tie up the press wheel
arms with wire or bungee to prevent furrow closure.
3. For populations above 100 000 seeds/acre, use a
sample size of 1/1000th acre.
For populations below 100 000 seeds/acre, use a
sample size of 1/200th acre.
For metric measures, use 1/1000th hectare.
4. Configure the planter for the chart rate, either using
the chart settings for sprockets, or, with hydraulic
drive, selecting the rate on the seed monitor.
* Not all spacings may be offered on implements
covered by this manual.
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5. Plant at the desired planting speed for slightly more
than the computed sample run length.
6. Measure off the sample distance, balanced in
between where seeding started and stopped.
7. Count the number of seeds over the distance
measured. Also note the consistency of the seed
spacing.
8. Compute the rate for a full acre or hectare.
For a 1/1000th sample, multiply the counted seeds
by 1000.
For a 1/200th sample, multiply the counted seeds by
200.
9. If the field and chart rates vary by more than a few
percent, re-check planter setup, including meter disk
or cell count, air system, hydraulic drive setup, chain
slack, etc. If seed spacing is irregular, this suggests
a seed delivery problem, and not a rate setup
problem.
10. While planting, pay attention to the seed monitor. In
addition to confirming the single-row furrow check, it
will also provide field rate data on all the other rows,
and alert you to any irregularities or stoppages.
USc Example:
Sample size:
1/1000th ac
Plant for approximately:
25 feet
Measure 1 row of central:
17 feet 5 inches
USc Example:
Seeds counted:
121
Computed for full acre:
121 × 1000 = 121,000
This differs from target by:
1.8%
Metric Example:
Sample size:
1/1000th ha
Plant for approximately:
20 meters
Measure 1 row of central:
14.29 meters
Metric Example:
Seeds counted:
309
Computed for full hectare:
309 × 1000 = 311,000
This differs from target by:
1.3%
401-627BTable of Contents2014-05-13
Great Plains Manufacturing, Inc.Table of ContentsPlanting Rate13
Planting Rate
Singulated planting employs the seed monitor in
“PLANTER CONTROL” mode.
Hydraulic Drive Meter Rate
Hydraulic drive meter rate is set directly on the seed
monitor in the tractor. Consult the monitor manual for
detailed instructions, which may vary slightly over time
with firmware updates to the monitor system.
Enter/update your planter configuration (width/row-count,
single-row/twin, disk cell count, etc.). Once entered,
specify the population directly in seeds/acre or seeds/ha.
Enter meter RPM limits for your disk (pages 14-20).
Note: For consistent results, and least meter wear, do not
exceed the recommended ground speed.
For step 1 through step 4, any needed data not provided
in this manual can be found in one or more of:
DICKEY-john
®
Quick Start Guide
Planter Operator Manual
Refer to the DICKEY-john®IntelliAg® Planter/Drill
Control Operator’s Manual for details on setup item.
Note: The monitor must be in User Level 2 to change
some of these parameters.
1. For a crop not previously planted with this planter,
create a “Material Name” for the crop. Selecting a
named material is a required step in later screens.
2. Verify, and as needed setup or update the “Material”
record for the singulated seed to be planted.
The table at right lists the parameters that need to be
reviewed or set. <angle bracket> values are your
choice/preference when not from meter rpm chart.
3. Verify, and as necessary setup or update the
“Channel” assigned to the planter’s hydraulic drive.
If the monitor resets to defaults, Gear Ratio may be
incorrect.
Count rows individually for “# Seed Rows”. A twin
pair (if both openers are in use) counts as 2 rows.
“Channel Width” is swath.
4. In the Material Library screen, makes sure that the
Material (SOYBEANS in our example) is assigned to
the Channel (CH 1 in our example) which controls
the planter’s hydraulic drive.
5. Perform a Valve Calibration for the control channel.
6. Switch the seed monitor from Setup/Configuration
mode to Operate mode. Load seed. Move the planter
to the field.
Figure 4
Typical Control Setup Screen
MaterialData Required
Material Name<crop name, such as “SOYBEANS”>
Channel“CH 1”
Type“PLANTER CONTROL”
Preset Method“Disabled” unless populations vary
Target Rate<your election>
Max Rate<110% of Target> is suggested
Min Rate<90% of Target> is suggested
Inc/Dec“1.0%” is suggested
Seeds Per Rev<seed disk cell count>
Disc Low Limit<rpm from seed rate chart>
Disc High Limit<rpm from seed rate chart>
High Pop Alarm<“20%”> is suggested
Low Pop Alarm<“20%”> is suggested
Prod Level Alarm 0
ChannelData Required
CHANNEL 1(must be channel specified above)
Type“PLANTER CONTROL”
Material Name(must be material name specified above)
Control ModeAuto
Drive TypePWM 1
Drive Freq.100 Hz
Input Filter50%
Gear Ratio1.900
Sensor Constant360
# Seed Rows<based on planter model/row setup>
Channel Width<based on planter model/row setup>
Precharge Time0
Delay Time0
Flush EnableDisabled
29750
2014-05-13Table of Contents401-627B
14YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
Meter RPM Limit Charts
Meter RPM Limits: Corn 24 Cell
Air-Pro
Initial Seed Inlet Shutter Setting:3
CORN
24 Cell Disk
22YP3025A, YP4025A and YP4425ATable of ContentsGreat Plains Manufacturing, Inc.
Sprocket Indexing (Stagger)
28420
If you are planting:
• with a seed disc having 24 cells or less,
• twin-row crops,
• at seed populations below 45,000 seeds/ac
(111 000 seeds/ha),
you can synchronize each pair of adjacent meters in a
twin row so that you achieve the maximum seed-to-seed
spacing between the units of the pair.
If the initial indexing does not provide equal spacing, see
“Indexing Fine Adjustment” on page 25.
If you are planting:
- single-row,
- or with seed discs or 25 cells or more,
- or a volumetric crop,
- or twin row with seed spacings below 91⁄4in. (23.5 cm),
this section of the manual, and the sprocket indexing
charts, do not apply to your operations.
Due to limitations on the number of sprocket teeth and
Source:Dated:
wheel cell count, it may not be possible to obtain perfect
Provider
stagger. Charts and fine adjustment provide the optimal
File:Sheet:
available stagger.
Rendered:Export As:Import As:
Air-Pro® Meter Stagger Timing Chart
Set front meter to tooth “1”.Page 1 of 2
Set rear meter to indicated Initial tooth number.
Advance or Retard to adjust - see instructions in Seed Rate Manual.
PopulationInitial Rear20% Rear Seed Drop Adjust40% Rear Seed Drop Adjust