ALTERNATIVAS PARA A SEGUNDA SAFRA COM PASTAGEM EM INTEGRAÇÃO LAVOURA-PECUÁRIA E/OU MILHO EM SUCESSÃO A SOJA

Abstract

Crop-Livestock Integration is a production strategy that consists in the diversification and integration of different productive systems, agricultural and livestock within the same area. Among the ILP systems, the succession of forages is a strategy for the use of pasture to feed cattle in the dry season, called “ox-safrinha”. Thus, the objective of this study was to evaluate the succession of Brachiaria and Panicum maximum forages after soybean harvesting and performance of cattle in a crop-livestock integration system. The project was developed in an experimental area of ​​the Comigo Technological Institute (ITC), located in Rio Verde-GO. The experimental design was randomized blocks with four replications. The treatments consisted of three cultivation systems: soybean / corn succession, soybean / paiaguás grass (Brachiaria brizantha cv. BRS Paiaguás) and soybean / tamani grass (Panicum maximum cv. BRS Tamani). The results showed that paiaguás grass presented higher forage production during the grazing cycles. However, both forages presented satisfactory results regarding the daily and total average weight gain. Tamani grass obtained the highest total animal ha-1, using protein-energy supplementation. The paiaguás and tamani grasses showed potential in the integration of livestock farming for formation, recovery and / or renewal of pastures in succession to soybean, and may be an alternative quality food to be provided in the dry season. The second late corn crop represents a high risk of economic damage due to climate-related production costs.