Great-plains YP2425A Material Rate User Manual download pdf (Page 68)

66 YP2425A Table of Contents Metric Charts Great Plains Manufacturing, Inc.

401-626B Table of Contents Metric Charts 2012-02-29

Volumetric Furrow Checking Rate - Metric

a. Conﬁgure the planter for the approximate rate, based

on the charts.

b. Set the meter pressure to the chart value.

c. Prime the meters. See your planter Operator manual

for the steps.

d. Plant for a short distance, just until the air delivery

system is stabilized, and the meters are all delivering

seed.

e. Select one or more rows to sample.

f. Set the planting depth to shallow for the sample

row(s). Set the press wheels to minimum force. Use a

wire to tie up the press wheel assembly.

g. Resume planting for a short distance.

h. Use a sampled row length

of one meter.

Count the seeds.

i. Find the nearest “Seeds per Row Meter” in the table

for your row spacing.

j. Look up the Population, or “Kilograms per hectare”.

a. You can interpolate rows for more precise rate results. Doubling or tripling the sample length improves accuracy.

Row Spacing Seeds per Population Kilograms per Hectare

Centimeters Row Meter Seeds/Hectare

at 27560 s/kg at 33070 s/kg at 38580 s/kg

24.1cm Rows 149 6 177 500

224 187 160

134 5 559 750

202 168 144

119 4 942 000

179 149 128

104 4 324 250

157 131 112

89 3 706 500

135 112 96

75 3 088 750

112 93 80

60 2 471 000

90 75 64

45 1 853 250

67 56 48

25.4cm Rows 157 6 177 500

224 187 160

141 5 559 750

202 168 144

126 4 942 000

179 149 128

110 4 324 250

157 131 112

94 3 706 500

135 112 96

78 3 088 750

112 93 80

63 2 471 000

90 75 64

47 1 853 250

67 56 48

One Row of Twin Row 70cm 216 6 177 500

224 187 160

or 195 5 559 750

202 168 144

35cm Rows 173 4 942 000

179 149 128

151 4 324 250

157 131 112

130 3 706 500

135 112 96

108 3 088 750

112 93 80

86 2 471 000

90 75 64

65 1 853 250

67 56 48

One Row of Twin Row 76.2cm 235 6 177 500

224 187 160

or 212 5 559 750

202 168 144

38.1cm Rows 188 4 942 000

179 149 128

165 4 324 250

157 131 112

141 3 706 500

135 112 96

118 3 088 750

112 93 80

94 2 471 000

90 75 64

71 1 853 250

67 56 48

32325B

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Great-plains YP2425A Material Rate User Manual Page 68

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