Fertilizer drive, Fertilizer rate, 7’ & 10’ fertilizer application chart – Great Plains EWNT7 1523Q-1630Q Operator Manual User Manual
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4/25/06
Great Plains Mfg., Inc.
Section 4 Adjustments
EWNT7 and EWNT10 End Wheel No Till Drill 150-082M-A
Fertilizer Drive
The fertilizer feed rate is directly related to your ground
speed so there are no chains or sprockets to adjust in or-
der to change your rate. The rate is controlled by the fer-
tilizer outlet opening size which is controlled by the
adjustment knob on the back of the fertilizer tray. For fer-
tilizer rates, refer to the chart below.
Fertilizer Rate
Great Plains End Wheel No-Till Fertilizer Drills have a
partition, Figure 4-7, dividing the seed and fertilizer com-
partments. In the partitions are removable panels to al-
low the drill to be used with all seed, Figure 4-7.
If fertilizer is not being used with grain, remove chain
from fertilizer drive sprocket to eliminate unnecessary
wear on the fertilizer drive system.
If total box capacity is desired for grain, remove seed/fer-
tilizer partitions and set fertilizer rate adjustment lever at
"0" setting so as not to allow any seed to escape through
the fertilizer outlets.
The application rate of dry granular fertilizer is affected
by many factors: Fertilizer type and density, relative hu-
midity, and the moisture content of the material itself.
Due to these variables, the chart below should be used
only to closely approximate the amount of fertilizer being
applied.
10114
Divided Panel
Panel Removed
Figure 4-7
INDICATOR SETTING NUMBER
Row
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95 100
Spacing Pounds Per Acre
7"
0
11
21
40
57
75
93 111 128 144 163 181 196 217 232 245 252 258 260
7 1/2"
0
10
19
37
51
69
85 100 116 131 148 164 178 198 211 223 230 234 236
8"
0
10
19
37
51
69
85 100 116 131 148 164 178 198 211 223 230 234 236
10"
0
8
16
29
41
55
68
80
93 105 119 132 143 158 169 178 184 187 189
The preceding chart has been computed using fertilizer that has a density of 65 pounds/cubic foot. 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 are using fertilizer with a 75 pound/cubic
foot density and you desire a rate of 100 pounds per acre.
Multiply 100 x 0.87 = 87 pounds. Therefore, use the set-
ting closest to 87 pounds.
7’ & 10’ Fertilizer Application Chart