Desempenho do irrigâmetro no manejo da água de irrigação na cultura do feijoeiro
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Data
2010-10-08
Autores
Tagliaferre, Cristiano
de Oliveira, Rubens Alves
de Oliveira, Ednaldo Miranda
Baptestini, Júlio Cesar Batista
Santos, Lucas da Costa [UNESP]
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Resumo
In this work, the aim was to evaluate the performance of Irrigameter in the management of the irrigation water, led in the culture of the bean plant, comparatively to the use of the methods standard of stove, tensiometers, Bouyoucos, automatic meteorological station and pan Class A. Irrigameter was adjusted to the soil characteristics, culture of the bean and irrigation equipment to confection the management ruler. For direct estimation of the evapotranspiration of the culture of the bean plant in your development stadiums, Irrigameter operated inside with heights of the levels of water of the evaporatorio same to 2, 3 and 5 cm, corresponding to the stadiums of initial development, vegetative development and flowering, respectively. The humidity obtained by the standard method of stove it was adopted as reference in the comparisons of the irrigation depth. Irrigameter can be used in the management of the irrigation to determine the consumption of water directly for a culture, in any development stadium; the methods that estimate the evapotranspiration of the culture overestimated the irrigation depth recommended by the standard method of stove, happening behavior contrary with the ones that determines the current humidity of the soil.
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Palavras-chave
Crop evapotranspiration, Evaporation, Irrigation depth
Como citar
Revista Caatinga, v. 23, n. 3, p. 110-117, 2010.