Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados AGRIAMBI (2) Autor Favarin,José L. (2) Angelocci,Luiz R. (1) Bacchi,Osny O. S. (1) Bruno,Isabeli P. (1) Costa,Flávio M. P. da (1) Dourado-Neto,Durval (1) Marin,Fábio R. (1) Pilau,Felipe G. (1) Reichardt,Klaus (1) Righi,Evandro Z. (1) Silva,Adriana L. da (1) Timm,Luis C. (1) Mais... Palavra-chave Correlation (1) Instrumentation (1) Net radiation (1) Perenial crop (1) Soil water storage (1) Solar radiation (1) Water balance (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2008 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Radiation balance of coffee hedgerows AGRIAMBI Angelocci,Luiz R.; Marin,Fábio R.; Pilau,Felipe G.; Righi,Evandro Z.; Favarin,José L.. The radiation balance of hedgerows is an important variable in studies of mass and energy exchanges between parcial ground cover crops and the atmosphere. This paper describes a device with eight net radiometers encompassing the plants of a hedgerow. The radiometers were moved along a length of hedgerow, in a continuous and reversible movement. The canopy net radiation in this length (Rnc) was found by integration of the measurements over the notional cylinder formed. The device showed good performance and provided reliable measurements of Rnc of coffee hedgerows, showing itselfto be an useful technique of measurement in field conditions. Good correlations between Rnc and global solar radiation, turfgrass and coffee crop net radiation were found in 15-min,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Correlation; Instrumentation; Solar radiation; Net radiation. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662008000300008 Soil water extraction by roots and Kc for the coffee crop AGRIAMBI Silva,Adriana L. da; Bruno,Isabeli P.; Reichardt,Klaus; Bacchi,Osny O. S.; Dourado-Neto,Durval; Favarin,José L.; Costa,Flávio M. P. da; Timm,Luis C.. Basic information for a rational soil-water management of the coffee crop is still insufficient, particularly under irrigated conditions. Of great importance for the estimation of water requirements of coffee crops are their root distribuition and evapotranspiration crop coefficients. This study compares soil water extraction by roots of coffee plants of the variety "Catuaí Vermelho" (IAC-44), grown in Piracicaba, SP, Brazil, 3 to 5 years old, with direct measurements of root dry matter, showing a good agreement between both approaches, and confirming that most of the root system is distributed in the top soil layer (0-0.3 m) and that less than 10% of the root system reaches depths greater than 1.0 m. Calculated evapotranspiration crop coefficients are in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Perenial crop; Soil water storage; Water balance. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662009000300006 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