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Title: Optimal Nitrogen Fertilization Rates in Winter Wheat Production as Affected by Risk, Disease, and Nitrogen Source
Authors: Roberts, Roland K.
Walters, Jeremy T.
Larson, James A.
English, Burton C.
Howard, Donald D.
Keywords: Certainty equivalent
nitrogen fertilizer
nitrogen source
winter wheat
JEL Codes: D21
Issue Date: 2004-04
Abstract: 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.
Institution/Association: Journal of Agricultural and Applied Economics>Volume 36, Number 01, April 2004
Total Pages: 13
From Page: 199
To Page: 211
Collections: Volume 36, Number 01, April 2004

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