Optimal Nitrogen Fertilization Rates in Winter Wheat Production as Affected by Risk, Disease, and Nitrogen Source

Interactions among the nitrogen (N) fertilization rate, N source, and disease severity can affect mean yield and yield in conservation tillage wheat production. A Just-Pope model was used to evaluate the effects of N rate, N source, and disease on the spring N fertilization decision. Ammonium nitrate (AN) was the utility-maximizing N source, regardless of risk preferences. The net-return-maximizing AN rate was 92 lb N/acre, providing $0.52/acre higher net returns than the best alternative N source (urea). If a farmer could anticipate a higher-than-average Take-All Root Rot infection, the difference in optimal net returns between AN and urea would increase to $35.11/acre.


Issue Date:
2004-04
Publication Type:
Journal Article
PURL Identifier:
http://purl.umn.edu/43444
Published in:
Journal of Agricultural and Applied Economics, Volume 36, Number 1
Page range:
199-211
Total Pages:
13
JEL Codes:
D21; D81; Q12




 Record created 2017-04-01, last modified 2017-08-22

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