Oakes Irrigation Research Site | ||||||||||||
Carrington Research Extension Center * North Dakota State University | ||||||||||||
P.O. Box 531, Oakes, ND 58474-0531, Phone: (701) 742-2744, FAX: (701) 742-2700, E-mail: | Walter.Albus@ndsu.edu | |||||||||||
Strip-Till, Corn on Soybean Nitrogen Rate Study | ||||||||||||
Soil Nitrate-N | Chlorophyll | |||||||||||
Fertilizer | Grain | Harvest | Test | Fall | Fall2 | Meter Reading | Stalk | Grain | Silk | |||
N Rate | Yield1 | Moisture | Weight | 2009 | 2008 | 3-Aug | 17-Aug | Nitrate-N | Oil | Protein | Starch | Date |
lb/ac | bu/ac | % | lb/bu | ------lb/ac------- | ---ppm--- | ----------------%---------------- | ||||||
20 | 77.8 | 30.8 | 46.7 | 13 | 9 | 28.0 | 27.7 | 41 | 3.97 | 6.36 | 73.59 | 8/1 |
50 | 83.4 | 31.4 | 46.1 | 9 | 9 | 29.1 | 29.2 | 46 | 4.05 | 6.55 | 73.03 | 8/1 |
100 | 137.7 | 30.7 | 45.0 | 9 | 9 | 39.9 | 39.6 | 59 | 3.71 | 6.38 | 72.75 | 7/30 |
150 | 179.2 | 32.1 | 45.8 | 12 | 9 | 47.1 | 48.4 | 48 | 3.53 | 6.58 | 72.28 | 7/30 |
200 | 204.1 | 31.5 | 47.2 | 9 | 9 | 51.5 | 55.2 | 112 | 3.45 | 7.29 | 72.33 | 7/29 |
Mean | 136.4 | 31.3 | 46.1 | 10 | 39.1 | 40.0 | 61 | 3.74 | 6.63 | 72.79 | ||
CV% | 7.6 | 4.1 | 2.5 | 33 | 5.8 | 5.4 | 70 | 6.08 | 3.59 | 0.67 | ||
LSD.05 | 15.9 | NS | NS | NS | 3.5 | 3.3 | 68 | 0.35 | 0.37 | 0.75 | ||
1Yield adjusted to 15.5% moisture | ||||||||||||
2Composite sample from the entire soybean plot. | ||||||||||||
Planting Date = April 12; Harvest Date = ; Previous Crop = Soybean. | ||||||||||||
Fertilizer Rate lb/acre = See table for N, 40 P2O5, 17 S; Irrigation = 10.3" | ||||||||||||
See also: | Strip-Till, Corn on Corn Nitrogen Rate Study | |||||||||||
Corn row width on hybrid study | ||||||||||||
Field Corn Hybrid Performance Trial Study | ||||||||||||
Go to detailed material and methods | ||||||||||||
Go to Oakes Irrigation Research Site Variety Performance Trials | ||||||||||||
Go to Oakes Irrigation Research Site crop index | ||||||||||||
Go to Oakes Irrigation Research Site 2009 Annual Report | ||||||||||||
Go to Oakes Irrigation Research Site home page | ||||||||||||