Estimativa da evapotranspiração potencial da cana-de-açúcar pelo modelo de Priestley-Taylor.

Abstract

The model of Priestley-Taylor was calibrated to estimate the sugarcane potential evapotranspiration for the Araras-SP climatic conditions starting from evapotranspiration measurements done in a phreatic constant level lysimeter. The calibration was made by means of linear regression analyse adopting a model through the origin. The measured potential evapotranspiration figures were taken as the dependent variable and the calculated ((Δ/(Δ + Y)) × Rn) as the independent. The calibrated figures of α for the 10-days and monthly time scale were, respectively, 1,30 e 1,34.