PRODUTIVIDADE DO MILHO EM FUNÇÃO DE DIFERENTES SISTEMAS DE PREPARO E COBERTURAS DE SOLO

Abstract

The preparation systems combined with cover crops are practices aimed at preserving the environmental quality of soils with the purpose of maintaining or increasing crop productivity. The objective of this study was to investigate the effects of conventional cultivation systems on corn grain productivity compared to no-till systems under different cover crops. The experiment was conducted at the experimental field of the Chapadão Agricultural Research Support Foundation in the municipality of Chapadão do Sul – MS. The production components of the corn crop were studied, including initial plant population, final plant population, final plant height, ear insertion height, stem diameter, average ear length, average ear diameter, average cob diameter, average grain length, average number of grain rows per ear, thousand grain weight, and grain productivity. The no-till system positively affected the production components of corn. Urochloa ruziziensis proved to be a good soil cover option preceding the corn crop. The average productivity was 10,511.47 kg ha-1 .