Disponibilidade de água no solo para a cultura do café no Planalto de Conquista, BA: análise dos componentes do balanço hídrico

Abstract

Productivity and quality of the coffee in Brazil, are directly affected by the variations of the water availability in the soil-plant-atmosphere system. With the objective of analyzing the components of the water balance and of quantifying their spatial variability with respect to the phenological phases of the coffee reproductive cycle, it was carried out an experiment to quantify the soil water storage variation, the rain, the intenal drainage and the evapotranspiration, in a dystrophic “Yellow latossol” in Barra do Choça – Bahia. Rain distribution was much irregular along the crop cycle, even though have supplied part of the, the crop real evapotranspiration; the soil water storage, was always below the field capacity and the supply of supplemental water for the coffee, should be done from october to november and in april.