Efeito de diferentes coberturas vegetais e sistemas de preparo do solo na produção da cultura da soja.

Abstract

Effect of different vegetal coverings and soil tillage systems in production of the crop soybean. The present research was carried in Cidade Gaúcha, PR, Brazil, Campus Arenito from University State of Maringá. This work evaluated the development of the soybean under the influence of vegetal covering and management of the soil in Dystrofic Red Latosol. One used oats, turnip, hairy vetch, pea, millet and lupine. One evaluated height of plants, height of insertion of string beans, number of string beans plants and productivity of soybean. The system no-tillage had greater height of insertion of string beans and height of plants with lower productivity and numbers of string beans plants. The coverings and the soil tillage systems of crop had influenced in the productivity of the soybean plants. The oats/hairy vetch trust revealed one technique of inadequate management for the conditions which the soil were submitted. The trust oats/millet showed to be a viable option of covering de solo predecessor the soybean.