Rendimento de milho (Zea mays) em consórcio com plantas de cobertura leguminosas

Abstract

The present article aims to evaluate the productive potential of maize in consortium with Estilosantes Campo Grande, Crotalaria Spectabilis, Feijão Guandu Dwarf and single maize in the municipality of Campo Erê in western Santa Catarina. The experimental design adopted was randomized blocks, factorial split-plot, with four replications and 32 experimental units. The dimensions were 6 meters wide by 4 meters long, totaling 24 square meters. The blocks were subdivided into plots of WITH and WITHOUT cover-to-cover application, so that those with N application had a dosage of 150 kg of N ha−1 with maize at the V5 stage. For analysis, spikes were collected from 2 central rows of the plots, discarding the first and last meters of each, totaling the collection of 16 plants per plot. As for the analysis of yield components, the height of insertion of the ear was measured, the grains per ear were counted, and after drying the grains to reach 13%, the mass of a thousand grains was determined and productivity in kg ha−1. For the variable variables, only mass of a thousand grains did not obtain a significant difference between the consortiums, as well as the presence and absence of nitrogen fertilization in coverage, while for the other variables, the presence of disease fertilization in coverage and the number of grains per ear differed. the consortium Malho + Estilosantes Campo Grande. therefore, it can be concluded that in all consortiums there is the influence of topdressing fertilization, being essential to achieve productivity and improvement in the yield components of corn, the crop of interest, in addition, the consortium corn + stylosantes campo grande promote a greater An increase in the amount of grains per ear, on the other hand, showed the lowest results for productivity, mass of a thousand grains and ear insertion height.