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Physical properties of three classes of soils cultivated with sugarcane in mechanized harvesting

The aim of this study was to evaluate the physical properties of three soils cultivated with sugarcane mechanized harvest system in the region of Mato Grosso do Sul The study site belongs to the Plant Eldorado, ETH Bioenergy Group S/A, located in Rio Brilhante, MS. The sampling in each experimental area was made from a grid with 180 m long and 145.6 m wide, totaling 90 points in a grid form, with nine columns and 10 rows, where samples were collected in undisturbed layers of 0-0.2 m and 0.2-0.4 m deep in the rows. After collection, samples were processed for determination of soil bulk density (BD), total porosity (TP) and soil moisture (q) for data interpretation. Crop residues left on surface helped to maintain good level of organic matter, supporting the formation, aggregation and stability of pores, preventing the increase in density. The reduction in total porosity and consecutive increase in density, especially in the 0.2-0.4 m, indicating compaction of this layer, justified by the intense traffic of vehicles and lack of soil disturbance.

Saccharum officinarum; bulk density; geostatistics; aggregate stability


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