ESTIMATE OF WHEAT EVAPOTRANSPIRATION IN UBERABA, MG

This study aimed at determing the crop evapotranspiration of wheat, and crop coefficient based on the reference evapotranspiration calculated with three estimation methods: Penman-Monteith; Blaney-Cridle and Hargreaves-Samani. The assay was carried in the experimental area of the Instituto Federal do Triângulo Mineiro, Campus Uberaba, MG. The reference evapotranspiration was estimated from the balance of water in the soil, therefore obtaining the data of crop evapotranspiration in each method used Among the results obtained, it’s possible to conclude that the values of reference evapotranspiration obtained through the method of Hargreaves-Samani overestimated the values obtained through the methods of Blaney-Criddle and Penman-Monteith. The same occurred for blades estimated from the crop evapotranspiration (145.26; 359.47 e 431.86 mm, respectively).