38in twin rows, 12 finger meter, Twin row 38, 12 finger meter – Great Plains 2525P Material Rate User Manual
Page 55: 2025-p, 2525-p
Great Plains Mfg., Inc.
53
03/23/2010
118-231B
2025-P
TWIN ROW 38"
2525-P
ATTENTION ! ! !
(For all seed corn types)
12 Finger Meter
Great Plains always recommends test stand calibration of the finger meter to the population and ground speed desired .
For Round Corn optimum meter speed is 45 to 75 RPM
( Shaded & Non shaded areas )
Range Sprockets:
Driver =
30
For Flat Corn optimum meter speed is 60 to 75 RPM
Driven =
15
(Shaded area)
Ground Speed
Transmission
7 mph
6.5 mph
6 mph
5.5 mph
5 mph
4.5 mph
4 mph
3.5 mph
Combinations
Seed
Seed
Population
Spacing
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Meter
Driver
Driven
(seeds/acre)
(inches)
(rpm)
(rpm)
(rpm)
(rpm)
(rpm)
(rpm)
(rpm)
(rpm)
17
28
18,513
17.8
17
27
19,198
17.2
17
26
19,937
16.6
19
28
20,691
16.0
17
25
20,734
15.9
19
27
21,457
15.4
17
24
21,598
15.3
19
26
22,282
14.8
17
23
22,537
14.6
19
25
23,174
14.2
19
24
24,139
13.7
45
23
28
25,047
13.2
47
19
23
25,189
13.1
47
23
27
25,974
12.7
48
45
24
28
26,136
12.6
49
45
23
26
26,973
12.2
50
47
24
27
27,104
12.2
51
47
25
28
27,225
12.1
51
47
17
19
27,282
12.1
51
47
23
25
28,052
11.8
52
49
45
24
26
28,146
11.7
53
49
45
25
27
28,233
11.7
53
49
45
26
28
28,314
11.7
53
49
45
23
24
29,221
11.3
55
51
47
24
25
29,272
11.3
55
51
47
25
26
29,319
11.3
55
51
47
26
27
29,362
11.2
55
51
47
Not Recommended
27
28
29,403
11.2
55
51
47
23
23
30,492
10.8
57
53
49
45
28
27
31,621
10.4
59
55
51
46
27
26
31,664
10.4
59
55
51
46
26
25
31,711
10.4
59
55
51
46
25
24
31,762
10.4
59
55
51
47
24
23
31,817
10.4
59
55
51
47
28
26
32,837
10.1
61
57
53
48
27
25
32,931
10.0
61
57
53
48
26
24
33,033
10.0
62
57
53
48
25
23
33,143
10.0
62
57
53
49
19
17
34,079
9.7
64
59
55
50
45
28
25
34,151
9.7
64
59
55
50
46
27
24
34,303
9.6
64
59
55
50
46
26
23
34,469
9.6
64
60
55
51
46
28
24
35,574
9.3
66
62
57
52
47
27
23
35,795
9.2
67
62
57
52
48
23
19
36,911
8.9
69
64
59
54
49
28
23
37,120
8.9
69
64
59
54
49
45
24
19
38,516
8.6
72
67
62
56
51
46
25
19
40,121
8.2
75
70
64
59
53
48
23
17
41,253
8.0
71
66
60
55
49
26
19
41,725
7.9
72
67
61
56
50
24
17
43,047
7.7
75
69
63
57
52
46
27
19
43,330
7.6
75
69
64
58
52
46
25
17
44,841
7.4
72
66
60
54
48
28
19
44,935
7.3
72
66
60
54
48
26
17
46,634
7.1
75
68
62
56
50
27
17
48,428
6.8
71
65
58
52
45
28
17
50 222
6 6
Not Recommended
74
67
60
54
47