Use este identificador para citar ou linkar para este item: http://repositorio.ufla.br/jspui/handle/1/1385
Título: Consumo hídrico e coeficiente de cultura da mamoneira na microrregião de Lavras, Minas Gerais
Palavras-chave: Ricinus communis L.
Fluxo de calor latente
Irrigação localizada
Razão de Bowen
Balanço de energia
Latent heat flux
Drip irrigation
Bowen ratio
Energy balance
Data do documento: 2011
Editor: Universidade Federal de Campina Grande
Citação: RIOS, G. F. A. Consumo hídrico e coeficiente de cultura da mamoneira na microrregião de Lavras, Minas Gerais. Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v.15, n.12, p.1275–1282, 2011.
Resumo: The study was carried out in order to evaluate the evapotranspiration (ETc) and crop coefficient (Kc) of castor bean by drip irrigation system, under the climatic conditions of Lavras, Minas Gerais State, Brazil, from 01/24 to 08/30/2008. The ETc was determined by the energy balance according to the Bowen ratio method and Kc by the methods and recommendations of the FAO-56 paper, from 02/14 to 06/03/2008, corresponding to phases I (growth), II (vegetative), III (fruiting) and IV (maturity). For this purpose, in the center of the experimental area, the sensors were installed to measure the temperature and relative humidity, at two levels above the crop canopy; the net radiation (Rn) and the soil heat flux (G) at 0.08 m under the soil surface. The average ETc values in phases I, II and III were 2.48, 2.68 and 3.04 mm d-1, respectively. The respective Kc in these phases were 0.27, 0.46, 0.87 and 0.57 in maturity phase, within the limits and recommendations of the FAO-56 paper.
URI: http://repositorio.ufla.br/jspui/handle/1/1385
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