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