Data/hora: 16/06/2024 10:28:29

Provedor de dados: | 31
País: | United States
Título: | Optimal Nitrogen Fertilization Rates in Winter Wheat Production as Affected by Risk, Disease, and Nitrogen Source
Autores: | Roberts,   Roland K.; Walters,   Jeremy T.; Larson,   James A.; English,   Burton C.; Howard,   Donald D.
Data: | 2008-09-22
Ano: | 2004
Palavras-chave: | Certainty equivalent; Blume-Blotch; Nitrogen fertilizer; Nitrogen source; Risk; Take-All; Winter wheat; D21; D81; Q12.
Resumo: | 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.
Tipo: | Journal Article
Idioma: | Inglês
Identificador: | http://purl.umn.edu/43444
Relação: | Journal of Agricultural and Applied Economics&gt;Volume 36, Number 01, April 2004
Formato: | 13