BALANÇO HÍDRICO CLIMATÓLOGICO E GESTÃO DOS RECURSOS HÍDRICOS DO BIOMA CERRADO COMO SUBSÍDIO PARA IRRIGAÇÃO EM ASSENTAMENTOS DO INCRA

Abstract

Common beans are cultivated in different regions, and it can be inferred that in some places they are capable of producing beans practically all year round. The objective was to evaluate the size of internodes of common beans fertigated with vinasse (first and second harvest) subjected to rainfed and irrigated water regimes. The soil in the experimental area is classified as dystroferric Red Oxisol. The experimental design used was randomized blocks, analyzed in a 4 × 2 × 2 split-plot scheme, with three replications. The treatments consisted of four doses of vinasse (0, 100, 200 and 300 m³ ha^-1); two water regimes (irrigated and rainfed) and two harvests (first and second harvest). Fertigation with vinasse was carried out 50% of the dose before planting and the other 50%, according to the treatments, 50 days after planting; bean seeds from the BRS Estilo cultivar were used. The morphological characteristics were carried out in the central lines of each plot, quantifying: length of internodes. The internode length of beans irrigated in the first harvest is up to 19.21% greater than the internode length of beans irrigated in the second harvest, for vinasse doses above 100 m³ ha^-1.