30in twin rows, 12 finger meter, Twin row 30, 12 finger meter – Great Plains 2525P Material Rate User Manual
Page 49: 2025-p, 2525-p
Great Plains Mfg., Inc.
47
03/23/2010
118-231B
2025-P
TWIN ROW 30"
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
23,450
17.8
17
27
24,318
17.2
17
26
25,253
16.6
19
28
26,208
16.0
17
25
26,263
15.9
19
27
27,179
15.4
17
24
27,358
15.3
19
26
28,224
14.8
17
23
28,547
14.6
19
25
29,353
14.2
19
24
30,576
13.7
45
23
28
31,726
13.2
47
19
23
31,906
13.1
47
23
27
32,901
12.7
48
45
24
28
33,105
12.6
49
45
23
26
34,166
12.2
50
47
24
27
34,331
12.2
51
47
25
28
34,485
12.1
51
47
17
19
34,557
12.1
51
47
23
25
35,533
11.8
52
49
45
Not Recommended
24
26
35,652
11.7
53
49
45
25
27
35,762
11.7
53
49
45
26
28
35,864
11.7
53
49
45
23
24
37,013
11.3
55
51
47
24
25
37,078
11.3
55
51
47
25
26
37,137
11.3
55
51
47
26
27
37,192
11.2
55
51
47
27
28
37,243
11.2
55
51
47
23
23
38,623
10.8
57
53
49
45
28
27
40,053
10.4
59
55
51
46
27
26
40,108
10.4
59
55
51
46
26
25
40,168
10.4
59
55
51
46
25
24
40,232
10.4
59
55
51
47
24
23
40,302
10.4
59
55
51
47
28
26
41,594
10.1
61
57
53
48
27
25
41,713
10.0
61
57
53
48
26
24
41,841
10.0
62
57
53
48
25
23
41,981
10.0
62
57
53
49
19
17
43,167
9.7
64
59
55
50
45
28
25
43,257
9.7
64
59
55
50
46
27
24
43,451
9.6
64
59
55
50
46
26
23
43,661
9.6
64
60
55
51
46
28
24
45,060
9.3
66
62
57
52
47
27
23
45,340
9.2
67
62
57
52
48
23
19
46,754
8.9
69
64
59
54
49
28
23
47,019
8.9
69
64
59
54
49
45
24
19
48,787
8.6
72
67
62
56
51
46
25
19
50,819
8.2
75
70
64
59
53
48
23
17
52,254
8.0
71
66
60
55
49
26
19
52,852
7.9
72
67
61
56
50
24
17
54,526
7.7
75
69
63
57
52
46
27
19
54,885
7.6
75
69
64
58
52
46
25
17
56,798
7.4
72
66
60
54
48
28
19
56,918
7.3
72
66
60
54
48
26
17
59,070
7.1
75
68
62
56
50
27
17
61,342
6.8
71
65
58
52
45
28
17
63,614
6.6
Not Recommended
74
67
60
54
47