Planting rates 30-inch row width – Great Plains PT1230 AA1080 Operator Manual User Manual
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Section 3 Adjustments
PT1230 Pull-Type Folding Planter 401-069M-B
4/12/05
Great Plains Mfg., Inc.
Planting Rates 30-Inch 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
Brush Meters, Cotton Discs
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
Planting Rates 30-Inch 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 3 to 6 seeds per cell because of vari-
ations in cotton seed size.
Determine which hill spacing is desired and select the
transmission ratio that is closest to that hill spacing on
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