Great Plains 2525P Material Rate - Manual (Page 59)

Great Plains Mfg., Inc.
57
03/23/2010 118-231B
2025-P TWIN ROW 40" 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 17,587 17.8
17 27 18,239 17.2
17 26 18,940 16.6
19 28 19,656 16.0
17 25 19,698 15.9
19 27 20,384 15.4
17 24 20,518 15.3
19 26 21,168 14.8
17 23 21,410 14.6
19 25 22,015 14.2
19 24 22,932 13.7 45
23 28 23,794 13.2 47
19 23 23,929 13.1 47
23 27 24,676 12.7 48 45
24 28 24,829 12.6 49 45
23 26 25,625 12.2 50 47
24 27 25,749 12.2 51 47
25 28 25,863 12.1 51 47
17 19 25,918 12.1 51 47
23 25 26,650 11.8 52 49 45
24 26 26,739 11.7 53 49 45
25 27 26,821 11.7 53 49 45
26 28 26,898 11.7 53 49 45
23 24 27,760 11.3 55 51 47
24 25 27,808 11.3 55 51 47
25 26 27,853 11.3 55 51 47
26 27 27,894 11.2 55 51 47 Not Recommended
27 28 27,933 11.2 55 51 47
23 23 28,967 10.8 57 53 49 45
28 27 30,040 10.4 59 55 51 46
27 26 30,081 10.4 59 55 51 46
26 25 30,126 10.4 59 55 51 46
25 24 30,174 10.4 59 55 51 47
24 23 30,227 10.4 59 55 51 47
28 26 31,195 10.1 61 57 53 48
27 25 31,284 10.0 61 57 53 48
26 24 31,381 10.0 62 57 53 48
25 23 31,486 10.0 62 57 53 49
19 17 32,375 9.7 64 59 55 50 45
28 25 32,443 9.7 64 59 55 50 46
27 24 32,588 9.6 64 59 55 50 46
26 23 32,745 9.6 64 60 55 51 46
28 24 33,795 9.3 66 62 57 52 47
27 23 34,005 9.2 67 62 57 52 48
23 19 35,065 8.9 69 64 59 54 49
28 23 35,264 8.9 69 64 59 54 49 45
24 19 36,590 8.6 72 67 62 56 51 46
25 19 38,115 8.2 75 70 64 59 53 48
23 17 39,191 8.0 71 66 60 55 49
26 19 39,639 7.9 72 67 61 56 50
24 17 40,895 7.7 75 69 63 57 52 46
27 19 41,164 7.6 75 69 64 58 52 46
25 17 42,599 7.4 72 66 60 54 48
28 19 42,688 7.3 72 66 60 54 48
26 17 44,303 7.1 75 68 62 56 50
27 17 46,007 6.8 71 65 58 52 45
28 17 47,710 6.6 Not Recommended 74 67 60 54 47