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	Provedor de dados AgEcon (9) Autor Mahajanashetti, S.B. (9) English, Burton C. (5) Roberts, Roland K. (5) Basavaraja, H. (4) Acharya, Saraswati Poudel (1) Angadi, V.V. (1) Bhat, Anil R.S. (1) Havaldar, Y.N. (1) Hugar, A.Y. (1) Kunnal, L.B. (1) Larson, James A. (1) Rajkumar, P.K. (1) Rao, B. Dayakar (1) Tyler, Donald D. (1) Udagatti, Naveen C. (1) Vijayakumar, H.S. (1) Mais... Palavra-chave Precision farming (5) Spatial variability (4) Crop Production/Industries (3) Nitrogen (3) Agricultural and Food Policy (2) Corn (2) Management zones (2) Meta-response functions (2) Nitrogen restriction (2) Resource /Energy Economics and Policy (2) Site-specific farming (2) Site-specific management (2) Spatial break-even variability proportions (2) Yield response variability (2) Composite entropy index (1) Crop diversification (1) Crop growth simulation model (1) EPIC (1) Environment (1) Environmental Economics and Policy (1) Mais... Tipo do documento Journal Article (6) Conference Paper or Presentation (2) Article (1) Ano 2011 (1) 2008 (1) 2007 (1) 2005 (1) 2002 (1) 2001 (1) 2000 (1) 1999 (2) Mais... País United States (9) Idioma Inglês (9)		Registro completo Provedor de dados:  AgEcon País:  United States Título:  ECONOMIC AND ENVIRONMENTAL BENEFITS OF VARIABLE RATE APPLICATION OF NITROGEN TO CORN FIELDS: ROLE OF VARIABILITY AND WEATHER Autores:  English, Burton C. Mahajanashetti, S.B. Roberts, Roland K. Data:  1999-05-20 Ano:  1999 Palavras-chave:  Precision farming Site-specific farming Spatial variability Nitrogen restriction Rainfall EPIC Crop growth simulation model Meta-response functions Environmental Economics and Policy Research and Development/Tech Change/Emerging Technologies Resource /Energy Economics and Policy Resumo:  The use of meta-response functions based on EPIC-generated data resulted in comparisons between variable (VRAT) and uniform rate application technologies for 36 simulated fields. VRAT was more profitable and less nitrogen was lost to the environment in most cases. When spatial variability was small, uniform rate application techniques were adopted. However, when nitrogen use is restricted, VRAT is used on all simulated fields. Tipo:  Conference Paper or Presentation Idioma:  Inglês Identificador:  1358 http://purl.umn.edu/21533 Editor:  AgEcon Search Relação:  American Agricultural Economics Association>1999 Annual meeting, August 8-11, Nashville, TN Selected Paper Formato:  17 application/pdf Fechar

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