Fertilizer density adjustment, Fertilizer rate charts, Dry fertilizer low rate setting – Great Plains PD8070 Operator Manual User Manual
Page 42: Dry fertilizer high rate setting
38
PD8070
Great Plains Manufacturing, Inc.
401-479M
2014-07-23
Fertilizer Density Adjustment
The fertilizer meter rate charts are based on fertilizer with
a density of 65 pounds per cubic foot (1.04 kilograms per
liter).
If you are applying fertilizer of a different density, use the
following table to convert application rate.
Multiply the desired application rate by the conversion
factor.
Use the “Chart Rate” to determine the initial sprocket
settings.
If the rate measured in calibration varies from the desired
field rate by more than a few percent, apply the error
percentage to the Chart Rate, and pick a new sprocket
pairing based on that.
Fertilizer Rate Charts
Dry Fertilizer Low Rate Setting
Approximate rate in kilograms per hectare
Dry Fertilizer High Rate Setting
Approximate rate in kilograms per hectare
Note: The application charts on this page were
calculated with a bulk density of 1.04 kilograms per
liter.
Density kg/l
(lb/ft
3
)
0.72
(45.0)
0.80
(50.0)
0.88
(55.0)
0.96
(60.0)
1.04
(65.0)
1.12
(70.0)
0.87
(75.0)
0.81
(80.0)
Conversion
Factor
1.45
1.30
1.20
1.10
1.00
0.93
0.87
0.81
You want to apply at: 100 kg/ha.
The fertilizer density is: 0.96 kg/liter
This is a correction factor of: 1.10
100
× 0.96 = 96
Adjust planter to the setting closest to 96 kilograms per
hectare.
ChartRate
FieldRate
CorrectionFactor
×
=
LOW
RATE
Driving Sprocket
15
17
19
21
23
24
32
41
44
Driven Spr
o
c
ket
15
n/a
n/a
n/a
n/a
n/a
n/a 205 263 282
17
n/a
n/a
n/a
n/a
n/a
n/a 181 232 249
19
n/a
n/a
n/a
n/a
n/a 122 162 208 223
21
n/a
n/a
n/a
n/a 105 110 147 188 202
23
n/a
n/a
79
88
96
100 134 171 184
24
n/a
n/a
76
84
92
96
128 164 176
32
45
51
57
63
69
72
n/a
n/a
n/a
41
35
40
45
49
54
56
n/a
n/a
n/a
44
33
37
42
46
50
52
n/a
n/a
n/a
HIGH
RATE
Driving Sprocket
15
17
19
21
23
24
32
41
44
Driven Spr
o
c
ket
15
n/a
n/a
n/a
n/a
n/a
n/a 579 742 796
17
n/a
n/a
n/a
n/a
n/a
n/a 511 655 703
19
n/a
n/a
n/a
n/a
n/a 343 457 586 629
21
n/a
n/a
n/a
n/a 297 310 414 530 569
23
n/a
n/a 224 248 272 283 378 484 519
24
n/a
n/a 215 238 260 272 362 464 498
32
127 144 161 178 195 204 n/a
n/a
n/a
41
99
113 126 139 152 159 n/a
n/a
n/a
44
93
105 117 130 142 148 n/a
n/a
n/a