Physical characterization of Rhodic Kandiudox from western Santa Catarina under different land uses
Abstract
The physical and mechanical soil quality is crucial for food production and inadequate management can lead to loss of sustainability and reduced productivity. The aim of this study was to determine the physical and mechanical properties of a Rhodic Kandiudox under different land use systems. The study was conducted in the experimental site of the Universidade do Oeste de Santa Catarina, in São José do Cedro, SC. The no-tillage system (NTS) was installed in the area two years before and the control area is characterized by native forest of the region. It was evaluated soil texture, bulk density, total porosity and pore size distribution, maximum soil density and the optimum water content, soil relative density and penetration resistance. The penetration resistance and the bulk density increased on no-tillage system. The optimum water content in a Rhodic Kandiudox is 0,21 kg kg-1 for native forest and 0,32 kg kg-1 for no-tillage system, and the maximum soil density is 1,20 g cm-3 for native forest and 1,35 g cm-3 for no-tillage system. The soil total porosity under NTS decrease compared to forest, increasing the volume of water available to plants.
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