Planting rates for brush meters (continued), Planting rates 30" row width – Great Plains PT1230 AA1062 Operator Manual User Manual
Page 36
Planting Rates 30" Row Width
Transmission
Sprockets
Speed
Range
(mph)
12 Cell
Hill-drop Cotton, Acid-delinted
Hills/Acre
Average Hill
Spacing
(inches)
Drive
Driven
17
28
2 to 8
16,186
12.9
17
27
2 to 8
16,785
12.5
17
26
2 to 8
17,431
12.0
19
28
2 to 8
18,090
11.6
19
27
2 to 8
18,760
11.1
17
24
2 to 8
18,883
11.1
17
23
2 to 8
19,704
10.6
19
25
2 to 8
20,261
10.3
19
24
2 to 8
21,105
9.9
23
28
2 to 8
21,898
9.5
19
23
2 to 8
22,022
9.5
24
28
2 to 8
22,850
9.2
24
27
2 to 8
23,697
8.8
17
19
2 to 8
23,853
8.8
24
26
2 to 8
24,608
8.5
26
28
2 to 8
24,755
8.4
24
25
2 to 8
25,592
8.2
26
27
2 to 8
25,671
8.1
23
23
2 to 8
26,659
7.8
27
26
2 to 8
27,684
7.6
24
23
2 to 8
27,818
7.5
25
23
2 to 8
28,977
7.2
19
17
2 to 8
29,795
7.0
27
24
2 to 8
29,991
7.0
28
24
2 to 8
31,102
6.7
23
19
2 to 8
32,271
6.5
28
23
2 to 8
32,454
6.5
24
19
2 to 8
33,674
6.2
25
19
2 to 8
35,077
6.0
23
17
2 to 8
36,068
5.8
26
19
2 to 7
36,480
5.7
27
19
2 to 7
37,883
5.5
28
19
2 to 7
39,287
5.3
26
17
2 to 7
40,772
5.1
27
17
2 to 7
42,340
4.9
28
17
2 to 7
43,908
4.8
34
Section 5 Planting Rate Adjustments
10/10/12
PT1230 Pull-Type Folding Planter 401-069M-A
Great Plains Mfg., Inc.
Planting Rates for Brush Meters (continued)
Planting Rates 30" Row Width
Transmission
Sprockets
Speed
Range
(mph)
12 Cell
Hill-drop Cotton, Acid-delinted
Hills/Acre
Average Hill
Spacing
(inches)
Drive
Driven
Meters equipped with the 12 cell acid-delinted hill-drop
cotton discs will plant from 3 to 6 seeds per cell because of
variations in cotton seed size.
Determine which hill spacing is desired and select the
transmission ratio that is closest to that hill spacing on the
chart.
To determine the average seeds per hill and hills per acre
do the following field check:
1.
Measure 1/1000 of an acre. (1/1000 acre = length of
row 17’5” for 30” widths).
2.
Multiply the average seed per hill by hills per acre.
Example:
4 seeds per hill x (13 hills x 1000) = 52,000
NOTE: See Planting Rate on page 30 for additional information. Always check seed population in the field to ensure
planting rates are correct.