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

Roland K. Roberts (), Jeremy T. Walters, James A. Larson, Burton C. English and Donald D. Howard

Journal of Agricultural & Applied Economics, 2004, vol. 36, issue 1, pages 199-211

Abstract: Interactions among nitrogen (N) fertilization rate, N source, and disease severity can affect mean yield and yield variance 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 infection, the difference in optimal net-returns between AN and urea would increase to $35.11/acre.

Keywords: certainty equivalent; Glume-Blotch; nitrogen fertilizer; nitrogen source; risk; take-all; winter wheat (search for similar items in EconPapers)
JEL-codes: D21 D81 Q12 (search for similar items in EconPapers)

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Journal of Agricultural & Applied Economics is edited by Jeffrey M. Gillespie

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