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Comprehensive information on Nitrogen Use Efficiency for cereal crop production Evan Brandes (bran@cconline.net), Central City, NE, April 7, 2005  308 940-0202
Benefits of using the SBNRC and Greenseeker Technology
Brent Rendel Case Study (Oklahoma)
CV-NDVI algorithm tested for winter wheat in Nebraska
2005 Yield Results:
Treatment Total N Applied Yield
lb/ac bu/ac
Check 0 37.7
OSU 46.6 39.3
UNL, Fixed 80 40
UNL, Fixed + 40 120 34.1
Reference, 50 50 29.1

 

Oklahoma State University
Planting Date: September 27, 2004
Sensing Date: April 7, 2005
Number of Days from Planting to Sensing where GDD>0: 85
NDVI NRich Strip: 
0.70
NDVI Farmer Practice: 0.55
RI:  1.29
RI adjusted: 1.45
Yield Potential, Farmer Practice (no additional N):  46 bu/ac
Yield Potential with added N fertilization:  67 bu/ac
Recommended Topdress N Rate:  50 lb N/ac

Also see: Paul Gangwish, Shelton, NE April 8, 2005
 

Dean Krull, Brandon Hamer (bhamer@aurora.coop), Evan Brandes, and Beau Bearnes.  Central City, NE, April 7, 2005

Variable N Application, Brandes Farm (Field 26), Central City, NE.