ANÁLISE DAS IMPUREZAS E DANOS MECÂNICOS NA COLHEITA DE SOJA: UM ESTUDO COMPARATIVO ENTRE COLHEDORAS

Abstract

The process of rural industrialization and the transformation of rural areas into productive hubs imply the need for mechanization to increase productivity, with the goal of improving the quality and durability of grains. However, challenges such as deterioration and grain quality are affected by storage conditions, where mechanical damage and impurities retained during the harvest process contribute to this issue. Therefore, this study aims to analyze two harvesters in terms of travel speed and threshing speed, and how these factors influence impurities and mechanical damage during harvest. Data were collected during soybean harvests in Urutaí, Goiás, between March and April 2024. The evaluation criteria included the percentage of mechanical damage, measured through a sodium hypochlorite test, and the percentage of impurities in operation of harvesters at travel speeds of 3 km h-1, 5 km h-1, and 7 km h-1, and threshing speeds of 500 rpm, 600 rpm, and 700 rpm, using a completely randomized design (CRD) with subdivided plots with three replications.