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	Provedor de dados AgEcon (1) Autor Arnall, D. Brian (1) Boyer, Christopher N. (1) Brorsen, B. Wade (1) Raun, William R. (1) Solie, John B. (1) Palavra-chave Crop Production/Industries (1) Linear stochastic plateau (1) Nitrogen use efficiency (1) Profitability (1) Wheat (1) Tipo do documento Conference Paper or Presentation (1) Ano 2010 (1) País United States (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Economics of Pre-Plant, Topdress, and Variable Rate Nitrogen Application in Winter Wheat AgEcon Boyer, Christopher N.; Brorsen, B. Wade; Solie, John B.; Arnall, D. Brian; Raun, William R.. Past research about the efficiency of nitrogen application in winter wheat (Triticum aestivum L.) based on source and timing has produced inconsistent results. The majority of the literature used data from few locations over short time periods. This study used a unique data set of yields and nitrogen quantities from 2002-2009 at ten different locations in Oklahoma, USA. The objective of this research was to determine wheat yield response for granular pre-plant, uniform foliar topdress, and variable rate foliar topdress. Topdress liquid nitrogen had a 19% higher NUE than pre-plant urea, and was the most profitable source of nitrogen. Tipo: Conference Paper or Presentation Palavras-chave: Linear stochastic plateau; Nitrogen use efficiency; Profitability; Wheat; Crop Production/Industries. Ano: 2010 URL: http://purl.umn.edu/61153 Registros recuperados: 1 Primeira ... 1 ... Última

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