Great Plains YP825AR Material Rate - Manual (Page 6)

401-923B Table of Contents Metric Charts 2013-11-11
2 YP825AR Table of Contents Metric Charts Great Plains Manufacturing, Inc.
Planting Rate Overview
The information in this section covers important setup
and checking information that applies to the Air-Pro
®
meter in singulated planting.
Singulated Rate Setting Summary
1. For your crop, determine your intended population, in
seeds/acre or seeds/hectare. If you know only the
seed spacing or population in pounds/acre or kg/ha,
consult the charts on page 2 through page 4.
2. For your crop, population and desired field speed,
select the correct seed disk:
“Air-Pro
®
Meter Disk Selection” on page 5
3. Set meter rate (page 14).
4. For staggered twin row, time row pairs using:
“Sprocket Indexing (Stagger)” on page 15
5. Set initial seed inlet shutter per seed rate chart.
6. Set initial meter pressurization per page 8, 9.
7. Verify your planting rate per the instructions at:
“Checking Planting Rate” on page 10. If the results
are consistent with your setup, plant the crop.
Population Reference Information
Seeds per Unit
If only population weight (pounds/acre or kilograms/
hectare) is known, obtain the population count by
multiplying the population weight by the “Kernels per
pound” value from the seed container.
Seed Spacing
If only seed spacing is known, use the tables on the next
two pages to determine population.
Kernels Per Pound
Figure 2
Air-Pro
®
Seed Meter
29626
Example: Milo
Target rate:
4.5 pounds/acre
Seed density: 14500 seeds/pound
Population: = Rate x Density
= 4.5 x 14500, or:
65250 seeds/acre
80,000 Seed Kernels 80,000 Seed Kernels
Bag Weight per Pound Bag Weight per Pound
67.5 lbs 1,185 45.0 lbs 1,778
65.0 lbs 1,231 42.5 lbs 1,882
62.5 lbs 1,280 40.0 lbs 2,000
60.0 lbs 1,333 37.5 lbs 2,133
57.5 lbs 1,391 35.0 lbs 2,286
55.0 lbs 1,455 32.5 lbs 2,462
52.5 lbs 1,524 30.0 lbs 2,667
50.0 lbs 1,600 27.5 lbs 2,909
47.5 lbs 1,684 25.0 lbs 3,200
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