Compressibility of a Cambisol Submitted to Periods of Rotational Grazing and Strategies to Avoid Additional Soil Compaction

Soil compaction is one of the main causes soil degradation, and some parameters have been used to characterize it, like those related compressibility degree compactness. To evaluate rotational grazing time during winter presence absence grazing, on compactness a Cambisol, an experiment was installed consisted corn planting for silage, fallow pasture period, with two treatments evaluating amount (two three times in period of, respectively, 2 3 months), subdivided into dairy cattle grazing. The mean bulk density value 1.47 Mg/m3 separates occurrence (plastic deformation) or not (elastic additional compaction, while traffic machinery animal trampling should occur moisture lower than 0.23 kg/kg, when has larger load-bearing capacity. For conservation structure, our study recommends permanence plots 30 40 min/day exit height 0.07 0.10 m, months.