QUALIDADE DOS GRÃOS DE SOJA COLHIDOS MECANICAMENTE COM PLATAFORMAS DE CORTE EM ÁREAS COM E SEM DESSECAÇÃO

Abstract

Soybean harvesting is one of the most important stages of the crop's production cycle and the use growing number of more complex technologies in agricultural machinery is linked to its success. O use of desiccants to anticipate the harvest has helped in the harvesting of grains. The goal of the work was to qualitatively evaluate the harvest of desiccated and non-desiccated soybeans from machines with two different cutting platforms: conventional and draper. O experiment was carried out in the municipality of Nova Crixás - GO, in a completely randomized, in a 2x2 factorial arrangement, with two harvesters with different types of platform cutting (conventional and draper) and two area managements (desiccated and non-desiccated), using four replicates per treatment. The analyzed variables were: purity, mass of a thousand seeds, water content of grains, germination, cracked grains, broken grains, banded grains and grains whole. There was no interaction between the analyzed variables. The draper cutting deck provided better physical and physiological qualities of soybeans than the model of conventional platform (snail). The desiccated soybean showed better results in compared to non-desiccated soybeans. For having a period of 5 more days of accumulation of matter dry, non-desiccated soybeans had a mass of one thousand grains greater than dried soybeans. Although, when comparing its results of cracked and broken grains, it does not make it possible to harvest soy without the desiccation process, avoiding such losses.