Indicadores físicos de um latossolo amarelo distrocoeso em sistemas de integração na região do cerrado

Abstract

The purpose of this study was to evaluate the physical quality and the modeling of penetration resistance curve of a dystrophic cohesive Yellow Latosol under different managements of pasture and native forest. The study was organized in split plot evaluating five managements systems (continuous grazing, rotational grazing, crop-livestock integration, integrated croplivestock- forest / Fire, Permanent preservation areanative forest) and four layers (0-0.1; 0, 1 to 0.2; 0.2- 0.3; 0.3-0.4 m) on a property located in the Cerrado region. All managements grazing reduced soil physical quality when compared to permanent preservation area -native forest. The best equation that estimated the soil resistance to penetration (RP) was achieved in the management permanent preservation area, where the estimated RP is given by RP = 8.02-45.53Gravimetrical moisture + 3.15Bulk density, R2 = 0.97.