Gesso agrícola e calcário na produtividade de milho e soja no sistema plantio direto

Abstract

The study aimed evaluate the influence of gypsum application, with and without lime, in soil chemical properties and corn and soybean yield in no-till system. The experimental design was completely randomized with six treatments for corn and completely randomized in a 6 x 2 factorial for soybeans, with four replications. The six treatments were levels of gypsum: 0, 0.5, 1, 2, 4 and 8 t ha-¹ in area with application of 2 t ha-¹ of lime and one treatment without gypsum and lime to corn, with and without application of lime for soybean. Were evaluated soil chemical characteristics and yield of corn and soybeans. The gypsum increased grain yield of corn and soybean, with greater intensity to the rate of 2 t ha-¹ , with 9.3% for corn and 11.3 and 11.4% for soybeans, with and without lime, respectively. The lime did not increase corn yield, but increased soybean yield.