Coberturas vegetais do solo e manejo de cultivo e suas contribuições para as culturas agrícolas

Abstract

The objective this work was to evaluate the agronomic performance of beans, corn and soybean cultivated under no - tillage system and conventional tillage management. The work consisted of 12 experiments, divided three agricultural crops, with the cultivation of species of vegetal cover in a consortium or in an isolated way, and later sowed the summer crops, besides the crop in conventional preparation, where the soil remained fallow during the winter period. Aerial dry mass of soil cover and yield components of beans, maize and soybean were evaluated. The turnip along with the species present in the fallow were those that demonstrated the lower production of dry mass of the aerial part. All soil cover, except turnip, did not show a decrease in bean yield components. The growth of corn crop was shown to be higher when grown in succession to vetch in isolation or in consortium with black oat or turnip. There was superiority in soybean yield as a function of the cultivation system, in at least one soil cover. It was concluded that beans did not promote reduction in yield components for conventional tillage management, but corn and soybean yielded benefits in grain yield components only when in succession the species of soil cover in the planting system conventional.