
Great Plains | 411-681B | 06/16/2020 8
PL5700 Planter Table of Contents Index Planting Overview
Initial Meter Pressurization for Other Crops
Checking Planting Rate
Singulated seed charts are based on cleaned and
sized seed singulated with the recommended disk.
Extreme seed size variations, foreign material, and
tire pressure can affect the planting rate.
Any material difference between the chart and field
rates implies a mechanical malfunction, a planter
setup error, unsuitable planting conditions (such as
excessive tire slippage) or extremely worn planter
components. Verify the setup and planter
performance by measuring seed placement and
spacing over a short distance.
1. Determine the sample distance to check.
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.
2. Note the number of rows to sample.
3. Adjust the planting depth to a shallow setting on
one or two outside rows.
4. Tie up the press wheel arms with wire or bungee
to prevent furrow closure.
5. Configure the planter for the chart rate:
a. For ground drive, use the chart settings for
sprockets.
b. For hydraulic drive or electric drive, select the
rate on the console.
6. Plant at the desired planting speed for slightly
more than the computed sample run length.
7. Measure off the sample distance, between where
seeding started and stopped.
8. Count the number of seeds over the distance
measured. Also note the consistency of the seed
spacing.
9. 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.
10. If the field and chart rates vary by more than a
few percent, recheck the planter setup, including
meter disk or cell count, air system, tire size, tire
pressures, sprocket or hydraulic drive setup,
chain slack, etc. If seed spacing is irregular, this
suggests a seed delivery problem, and not a rate
setup problem.
11. While planting, pay attention to the console. 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.
Example Rate Check
Crop Meter
pressurization -
inches of water Seed density Initial seed
inlet gate
Medium/large edible beans 2.75 any seed density 3
Cotton 1.5 any seed density 2
Milo - all disks 1.5 any seed density 2
Soybean - 84 cell disk 2.0 any seed density 2
Soybean - 168 cell disk 3.0 any seed density
Sunflower
1.25 8500 to 7000 seeds/lb (18 700 to 15 400 seeds/kg)
21.75 7000 to 5500 seeds/lb (15 400 to 12 100 seeds/kg)
2.25 5500 and less seeds/lb (12 100 and less seeds/kg)
Rows to Sample Length of Sample Run
Row
Spacing Row
Count 1/1000th
acre 1/200th
acre 1/1000th
hectare
70 cm 1 18 ft 2 in 94 ft 10 in 14.29 m
30 inch 1 17 ft 5 in 87 ft 1 in 13.12 m
Planter PL5700-1630
Crop Soybeans
Density 3000 seeds/lb
Seed disk 817-798C
Target population 123,000 seeds/acre
Maximum planting speed 5 mph
Chart seed spacing 1.7 in
Sample run length 1/1000 acre - 17 ft 5 in
Seeds counted 121
Computed for full acre/hectare 121 x 1000 = 121,000
This differs from the chart by 1.8%