Cobertura do solo com palha de aveia (Avena brevis Roth) cv. BRS Centauro e produtividade de grãos de milho

Abstract

The use of cover crops has been widely used as a form of soil management to maintain and improve its characteristics what improves the maintenance of temperature, reduces erosion, maintains humidity and also has a better weed management, thus achieving higher yields. Objecting to evaluate the corn grain productivity in relation to the amount of straw overlapped to the soil, an experiment was conducted at the Federal University of Pampa - Campus Itaqui, in a Haplic Plinthosol with medium texture in the 2016/2017 agricultural year. The experimental design was randomized blocks with five treatments and four repetitions. The treatments were the oat straw (Avena brevis Roth) cv. BRS Centauro quantity at the soil surface: 0, 1, 2, 4 and 8 t ha-¹ of oat straw spread on the soil surface 15 days after the corn sowing, with 4 repetitions. The evaluated variable was grain yield of corn where there was not any significant difference.