The aim of this study was to determine the impact of harvesting traffic by evaluating the spatial variability of soil physical attributes on a clayey Oxisol under sugarcane cultivation using different row spacing.Two areas of sugarcane production (RB855156 genotype) were planted in autumn 2013, both using conventional planting systems.Treatments were either sugarcane cultivated using: (i) single-row spacing (SR) of 1.50?m; or (ii) double-row spacing (DR) of 0.40?×?1.50 m.Areas using SR spacing occupied a total of 6 ha areas using DR spacing occupied a total of 2 ha.Assessments of soil physical attributes were performed during the summer of 2016 after the second harvest.Soil measurements in each area were done at 100 points using a grid design with dimensions of 10?m long by 5?m wide.Soil sampling was taken from the 0.00-0.10 m layer, from points distributed along the planted row and the machine’s wheel track.The following soil physical attributes were assessed: bulk density, total porosity, macroporosity, microporosity, soil penetration resistance, and water contentat field capacity.Bd and PR in the single-row spacing showed critical values for adequate sugarcane root development.The highest spatial variability of PR and Ma was found in double-row spacing, however, this spacing arrangement promoted a better soil physical conditions.
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