Coeficientes de cultivo para a cultura do pimentão, cultivada nos sistemas de plantio convencional e direto.

Abstract

In order to estimate the crop coefficient (Kc) for bell pepper culture (Capsicum annuum. L) in the direct (DS) and conventional (CS) system of seeding, it was development this work in the experimental area of SIPA (Integrated System of agroecological production), localized in Seropedica municipality, Rio de Janeiro State, Brazil. The area was irrigated by an sprinkler system irrigation by aspersion and its water soil management was made by the methodology of TDR. The reference evapotranspiration was obtained by Penman-Monteith FAO-56'S method and the crop evapotranspiration was obtained starting from the water soil balance. The values of Kc, obtained by different methodologies, were compared with the values obtained after plotting and visualization of the phases of development of the culture. The values of Kc were of 0.32, 1.18 and 0.77, for CS, and of 0.34, 1.05 and 0.86, for DS, considering the phases initial, average and final, respectively.