Perfil da resistência do solo à penetração em sistemas com rotação de culturas

Abstract

Without soil tillage systems are not managed properly, and rotation of appropriate crops may favor the onset of soil compaction. The objective was to evaluate the spatial variability of penetration resistance in a cross from the soil profile in area with crop rotation systems. Data collection occurred in the municipality of Dourados MS, Brazil specifically at the Experimental Farm UFGD. The experiment was conducted in the design of randomized blocks with four replications and 26 treatments (rotations). It used a penetrometer impact to a depth of 0.60 m using a sampling grid with 42 points and 0.45 m wide and 0.10 m deep. Subsequently collecting the data were analyzed by descriptive statistics and geostatistics for making the maps of spatial variability of resistance in the soil profile. It is hoped that the data can predict subsoiling actions and indicate what the best crop rotation system to promote organic unzipping.