Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Agronomy (1) PAB (1) Autor Carvalho,Gustavo Luís de (1) Marin,Fabio Ricardo (1) Monteiro, Leonardo Amaral; Universidade de São Paulo (1) Sentelhas, Paulo Cesar; Universidade de São Paulo (1) Palavra-chave Actual yield (2) 5.01.05.00-0 Glycine max (1) Attainable yield (1) Biofuel (1) Potential yield (1) Simulation models Agrometeorologia (1) Socioeconomy (1) Water deficit (1) Yield gap (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2014 (1) 2012 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Calibration and testing of an agrometeorological model for the estimation of soybean yields in different Brazilian regions Agronomy Monteiro, Leonardo Amaral; Universidade de São Paulo; Sentelhas, Paulo Cesar; Universidade de São Paulo. This study was designed to calibrate and test an agrometeorological model over 18 growing seasons in three soybean production areas in Brazil: Passo Fundo (Rio Grande do Sul State), Londrina (Paraná State), and Dourados (Mato Grosso do Sul State).The soybean potential yield (Yp) was determined by two methods: estimated using the FAO Agroecological Zone Model or based on the maximum yield published by the Brazilian Institute of Geography and Statistics (IBGE), increased by 10, 20 and 30%.The estimate of actual yield (Ya) was calculated by correcting Yp for the relative water deficit at different growth stages. The results showed that the best performance was obtained when the Yp was represented by the maximum yield increased by a certain percentage. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: 5.01.05.00-0 Glycine max; Potential yield; Actual yield; Water deficit; Simulation models Agrometeorologia. Ano: 2014 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/17485 Spatio-temporal variability of sugarcane yield efficiency in the state of São Paulo, Brazil PAB Marin,Fabio Ricardo; Carvalho,Gustavo Luís de. The objective of this work was to assess the spatial and temporal variability of sugarcane yield efficiency and yield gap in the state of São Paulo, Brazil, throughout 16 growing seasons, considering climate and soil as main effects, and socioeconomic factors as complementary. An empirical model was used to assess potential and attainable yields, using climate data series from 37 weather stations. Soil effects were analyzed using the concept of production environments associated with a soil aptitude map for sugarcane. Crop yield efficiency increased from 0.42 to 0.58 in the analyzed period (1990/1991 to 2005/2006 crop seasons), and yield gap consequently decreased from 58 to 42%. Climatic factors explained 43% of the variability of sugarcane yield... Tipo: Info:eu-repo/semantics/article Palavras-chave: Actual yield; Attainable yield; Biofuel; Socioeconomy; Yield gap. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000200001 Registros recuperados: 2 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco