Avaliação de risco agrícola para quatro culturas de sequeiro no estado de São Paulo, por índices de veranico.

Abstract

One model using probability of rainfall generated monthy drought index (Is) that associated with hidric stress crops coeficients and yeld coeficients crops “Ky”, to permited to establish Agricultural Risk Index “Ira” to corn, soybeam, sorghum and rice in the Assis, Ribeirão Preto, Marília and Sorocaba. Ira’s four levels were used to classify the crop adaptability in each locality.