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	Provedor de dados Scientia Agricola (1) Ciência Rural (1) PAB (1) Autor Souza,José Leonaldo de (3) Coelho Filho,Maurício Antônio (1) Coelho,Eugênio Ferreira (1) Escobedo,João Francisco (1) Ferreira Júnior,Ricardo Araújo (1) Santos,Marcos Alex dos (1) Santos,Wellington Manoel dos (1) Silva,Alisson Jadavi Pereira da (1) Silva,Ricardo Barros (1) Souza,Renan Cantalice de (1) Tornero,Maria Terezinha Trovareli (1) Mais... Palavra-chave Citrus sinensis (L.) Osbeck (1) Evapotranspiration reduction (1) Irrigation management (1) Phaseolus vulgaris (1) Soil water storage (1) Solar radiation (1) Water balance (1) Water balance. (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2019 (1) 2018 (1) 1999 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Actual evapotranspiration and crop coefficient of sweet orange during the initial development phase in the Rio Largo region, Alagoas Ciência Rural Silva,Ricardo Barros; Souza,José Leonaldo de; Ferreira Júnior,Ricardo Araújo; Santos,Marcos Alex dos; Souza,Renan Cantalice de; Santos,Wellington Manoel dos. ABSTRACT: Determining actual crop evapotranspiration (ETa) is paramount for irrigation management. The principal measurement methods and physical models generally require crop and weather data that are not readily available. We determined the crop coefficient (Kc) of sweet oranges during the initial development stage and evaluated the performance of the Poulovassilis semi-empirical model coupled with a simple soil water balance for estimating the ETa. The ETa was inferred from the variation in the soil water content over time, measured by time-domain reflectometry. In the Poulovassilis model, the ETa is obtained by multiplying the crop evapotranspiration (ETc) by an adjustment coefficient (ca), which accounts for a reduction in the evapotranspiration... Tipo: Info:eu-repo/semantics/article Palavras-chave: Citrus sinensis (L.) Osbeck; Evapotranspiration reduction; Water balance.. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019000600202 Albedo and estimates of net radiation for green beans under polyethylene cover and field conditions PAB Souza,José Leonaldo de; Escobedo,João Francisco; Tornero,Maria Terezinha Trovareli. This paper describes the albedo (r) and estimates of net radiation and global solar irradiance for green beans crop (Phaseolus vulgaris L.), cultivated in greenhouse with cover of polyethylene and field conditions, in Botucatu, SP, Brazil (22º 54' S; 48º 27' W; 850 m). The solar global irradiance (Rg) and solar reflected radiation (Rr) were used to estimate the albedo through the ratio between Rr and Rg. The diurnal curves of albedo were obtained for days with clear sky and partially cloudy conditions, for different phenological stages of the crop. The albedo ranged with the solar elevation, the environment and the phenological stages. The cloudiness range have almost no influence on the albedo diurnal amount. The estimation of radiation were made by... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phaseolus vulgaris; Solar radiation. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X1999001000002 Water extraction and implications on soil moisture sensor placement in the root zone of banana Scientia Agricola Silva,Alisson Jadavi Pereira da; Coelho,Eugênio Ferreira; Coelho Filho,Maurício Antônio; Souza,José Leonaldo de. ABSTRACT: The knowledge on spatial and temporal variations of soil water storage in the root zone of crops is essential to guide the studies to determine soil water balance, verify the effective zone of water extraction in the soil and indicate the correct region for the management of water, fertilizers and pesticides. The objectives of this study were: (i) to indicate the zones of highest root activity for banana in different development stages; (ii) to determine, inside the zone of highest root activity, the adequate position for the installation of soil moisture sensors. A 5.0 m3 drainage lysimeter was installed in the center of an experimental area of 320 m2. Water extraction was quantified inside the lysimeter using a 72 TDR probe. The concept of time... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil water storage; Irrigation management; Water balance. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000200095 Registros recuperados: 3 Primeira ... 1 ... Última

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