Qualidade do solo de áreas localizadas na Fazenda Boa Vista no município de São Domingos - PB.

Abstract

The assessment of soil quality is a tool to verify the interference of management practices on the sustainability of agricultural systems. Agricultural activities in arid and semiarid areas, with the use and management that, while fighting the limiting of production, are made up of agents that alter their soil attributes. Agricultural activities in arid and semiarid areas, with the use and management that, while fighting the limiting of production, are made up of agents that alter their soil attributes. To this end, we aimed to evaluate soil quality areas of Boa Vista in São Domingos - PB. We assessed three management situations: preserved area (AP), an area fallow (P) and a cultivated with cowpea (CA) area. In those areas selected four subareas (repetitions) scheme randomly shaped target with two concentric circles, with the smallest circle with diameter of one meter and two meters higher, where five single soil samples were collected to obtain a sample comprised eight composite samples per area, three areas and two depths (0-15 cm and 15-30 cm), totaling 24 samples. We analyzed the chemical, physical and biological indicators of soil quality attributes. We calculated the decay index for the attributes separately and jointly, by means of chemical, physical and biological areas managed in relation to the preserved area attributes. We conducted multivariate principal component analysis with 18 variables. We conducted multivariate principal component analysis with 18 variables. Was affected by change management on chemical, physical and biological attributes of the studied soil cultivated, fallow and preserved areas. Differentiation occurred in the chemical, physical and biological indicators among areas (AC, P and AP), for the two depths.