ATRIBUTOS FÍSICOS E QUÍMICOS DE UM NEOSSOLO QUARTZARÊNICO SOB DIFERENTES SISTEMAS DE USO E MANEJO

Abstract

The removal of the original vegetation and deployment of crops, combined with inadequate management practices, usually cause the deterioration of the physical and chemical quality of the soil. The aim of this study was to evaluate the changes in the physical and chemical attributes of a Typic Quartzipsamment from different land use systems and soil management. Four agroecosystems were selected: eucalyptus forest, extensive grazing, crop-livestock integration and integrated crop-livestock-forest, and an ecosystem preserved vegetation of native cerrado, located on Fazenda Modelo II in Ribas do Rio Pardo, MS. Soil samples were col-lected at depths of 0-5, 5-10 and 10-20 cm in a completely randomized design, with six plots of 150 m2 on each system. The integrated crop-livestock and integrated crop-livestock-forest provided the biggest contribution in the improvement of soil fertility. There was an antagonistic relationship between physical and chemical soil as sustainability evaluation, and chemical attributes had to be more affected than physical.