Avaliação das características agronômicas da soja Brasmax Desafio RR e Monsoy 7110 IPRO em relação ao espaçamento entrelinhas

Abstract

n this work we present the result of a practical study of the spacings obtained through the growth of soybean in a given area of cultivation. It is known that the productivity of a culture is defined by the interaction between the plant, the production environment and management. Among the management practices, sowing spacing is a determining factor for the arrangement of plants in the production environment and influences soybean growth. The experiment was conducted in the city of Colíder-MT, located in the northern region of the state. The experiment was carried out in plots with row spacing of 0.25 meters and 0.50 meters, corresponding to a population of 400,000 plants/ha. The agronomic characteristics evaluated were: height of first pod insertion, number of internodes, ramifications per plant, number of grains per plant, thousand grain weight and grain yield. The evaluated cultivars were BMX Desafio RR and M 7710 IPRO. The design used was randomized blocks, with four replications, in a 2 x 2 factorial scheme (two cultivars x two spacings). With means compared by the Tukey test at 5%. The analysis of variance did not indicate significant differences between the cultivars in any of the spacings, but in order to assist in the optimization of operations in the cutting process, the spacing of 0.50 meters is the most indicated in the state of Mato Grosso.