| 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 | ||||||||||
| Table 1. Nitrogen Management in Wheat Utilizing RemoteSensing at the Oakes Irrigation Research Site in 2011. | |||||||||||
| Grain | Test | Plant | NDRE Value3 | Soil-Nitrate-N | Return | ||||||
| N Rate | Yield | Protein | Weight | Lodge2 | 8-Jun | 15-Jul | Fall 2010 | 8/22/12 | to N4 | ||
| bu/ac | ---%--- | lb/bu | 0-9 | -------lb/ac------- | $/ac | ||||||
| 100 | 57.8 | 16.5 | 57.3 | 2.8 | 0.3667 | 0.4071 | 27 | 60 | 412.50 | ||
| 150 | 46.3 | 17.1 | 55.4 | 3.8 | 0.3715 | 0.4071 | 27 | 73 | 295.80 | ||
| 200 | 43.3 | 17.5 | 54.4 | 5.0 | 0.3722 | 0.4133 | 27 | 80 | 246.30 | ||
| 150+301 | 43.3 | 17.6 | 55.0 | 5.0 | 0.3661 | 0.4122 | 27 | 91 | 256.50 | ||
| MEAN | 47.7 | 17.2 | 55.5 | 4.2 | 0.4 | 0.4 | 76.0 | 302.8 | |||
| CV % | 5.9 | 1.4 | 1.2 | 34.5 | 2.8 | 1.7 | 16.7 | 7.4 | |||
| LSD.05 | 4.5 | 0.4 | 2.3 | NS | NS | NS | 20 | 35.8 | |||
| 1First number lb N/ac prior to flowering. Second number lb N/acre after flowering. | |||||||||||
| 2Lodging score: 1 = erect, 9 = flat. | |||||||||||
| 3NDRE value from Holland sensor. | |||||||||||
| 4Wheat @$8.00/bu, N @ $.50/lb. | |||||||||||
| Planting date = April 28; Harvest date = August 4; Previous crop = Edible bean. | |||||||||||
| Fertilizer rate lb/acre = see table for N, 39 P2O5, 48 K2O, 19 S, 2 Zn; Irrigation = 5.3 inches. | |||||||||||
| Detailed material and methods | Hard red spring wheat variety trial | Table | |||||||||
| Oakes Irrigation Research Site | |||||||||||
| Home page | Report 2011 | ||||||||||