Recuperação do solo sob ensilagem após escarificação e plantas de cobertura

Abstract

The need to feed a cattle herd implies intensifying the use of the soil for forage production, which can be harvested by the animals or conserved by phenation and silage processes. The objective of the present study was to evaluate the effect of four treatments after ensiling white oats on a Red Dystrophic Latosol, in order to evaluate soil recovery in relation to compaction. The applied treatments were scarification, regrowth, fallow and control. Each treatment was conducted on a plot of 10 x 50 meters. Seven evaluations were carried out by treatment with the withdrawal of undisturbed soil samples through rings with known volume at the depths of 0.02-0.07 meters and 0.10-0.15 meters and also by the method of visual evaluation of the structure of the (VESS) in two periods of data collection. With the sampled rings values were obtained for soil density, total porosity, macroporosity and microporosity. The score obtained by the VESS method varies from Qe 1 soil with good structure, to Qe 5 soil with poor structure. The scarification and regrowth treatments presented recovery in relation to the compaction observed in the fallow.