Great Plains 800 Material Rate - Manual (Page 35)

2011-10-25 Table of Contents Main Box Rates 175-057B
Great Plains Manufacturing, Inc. Table of Contents Main Box Rates 33
Fertilizer Rate
Setting Fertilizer Rate
The model 800 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 in
the Seed Rate Manual 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.
Fertilizer Rate Chart
Fertilizer Rates in Pounds per Acre
Metric Fertilizer Rate Chart
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)
6 inch 13 25 48 67 89 112 131 154 173 197 218 234 261 279 292 303 306 308
7.5 inch 11 20 38 54 72 89 105 123 138 157 174 187 209 223 234 242 245 247
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)
15.2cm (6in) 17 26 35 54 72 98 122 140 157 189 219 236 253 278 303 331 359 387 414
19.1cm (7.5in) 13 20 27 42 57 76 98 112 126 150 175 189 202 222 243 265 287 310 331
Figure 12
Fertilizer Rate Adjuster
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