Great Plains EWD13 4109R+ Operator Manual - Manual (Page 29)

4/3/95 6-1
175-083M-A
GRANULAR FERTILIZER OPERATING INSTRUCTIONS
Great Plains fertilizer drills have a center seed/fertilizer
partition. This allows approximately the same seed capac-
ity as fertilizer, Fig. 14. The partitions are removable pan-
els to allow the drill to be used with all seed, Fig. 15.
If fertilizer is not being used with grain, remove the chain
from fertilizer drive sprocket to eliminate unnecessary
wear on the fertilizer drive system. If total box capacity is
desired for grain, remove seed/fertilizer doors, Fig. 15.
Set fertilizer rate adjustment lever at “0” to avoid seed loss
through the fertilizer outlets.
Fertilizer Divider Panel In Place
Fig. 14
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The fertilizer rate is set by the adjustment handle located
on the fertilizer tray. The setting that the handle is set on
corresponds to the fertilizer application chart setting num-
ber.
The application rate of dry granular fertilizer is affected by
many factors: type, density, relative humidity, and the
moisture content of the material itself. Due to these vari-
ables, the chart below should be used only to closely ap-
proximate the amount of fertilizer being applied.
Seed Planting Only - Panel Out
Fig. 15
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FERTILIZER APPLICATION CHART
This chart has been computed using fertilizer that has a density of 65 lbs/cubic foot.
ADJUSTMENT HANDLE SETTING
Row 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
Spacing
6" 23 34 46 59 72 84 97 111 125 139 153 166 179 193 206 221 235 248 262
7" 21 31 41 52 63 75 86 99 111 124 136 147 157 170 182 194 207 220 223
7 1/2' 18 28 38 48 58 68 79 90 100 111 123 133 144 155 166 177 189 200 212
8" 17 26 35 45 55 64 74 85 95 105 116 126 136 147 157 168 178 189 200
10" 14 21 29 36 44 51 59 67 76 85 95 102 109 118 127 136 145 154 162
If you are applying fertilizer that has a density other than this, use the following table:
Density 45 50 55 60 65 70 75 80
Conversion Factor 1.45 1.30 1.20 1.10 1.00 0.93 0.87 0.81
EXAMPLE: You’re using fertilizer with a 75 lb/cubic foot density and you desire a rate of 100 lbs/acre. Multiply 100 x
0.87 = 87 lbs. Therefore, use the setting closest to 87 lbs.
Pounds Per Acre