Sistemas de produção e sua influência na cultura do milho safrinha em plantio direto

Abstract

The use of animal manure in agriculture coupled with the cultivation of cover crops can provide sustainability to agricultural systems. Aiming to evaluate the effect of cropping systems and nutrient sources in the culture of corn, we conducted an experiment on Oxisol in no-tillage system in Marechal Cândido Rondon (Parana, Brazil). The experiment was carried out in a randomized block design with four replications and treatments arranged in a 2 x 3 factorial consisting of two cropping systems (crop rotation and rotation with cover crops) and three nutrient sources (mineral, organic and organomineral). Organic and organomineral fertilization consisted of hen manure alone and combined with mineral fertilizer. This study describes the effect of different production systems on the cultivation of out-of-season corn (2008 harvest) in an experiment set up in 2006. The cultivation of out-of-season corn in rotation with cover crops enabled higher production of whole plant silage, but it did not affect grain yield. The nutrient sources did not affect the development of corn, both for silage and grain production. The adoption of cover crops and organic fertilizers can promote more sustainable production systems.