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RELATIONSHIP BETWEEN BULK DENSITY AND WATER CONTENT OF AN OXISOL SUBJECTED TO REPEATED CYCLES OF EXPANSION AND CONTRACTION

Paulo Ivonir Gubiani, Quirijn de Jong Van Lier, Marta Sandra Drescher, Henrique Caletti Mezzomo, Camila Machado Costa Veiga

01/Jan/2015

Soil compaction is an undesirable consequence of land use for crop production, especially under cultivation with minimum soil turnover as in the no-tillage system (NTS). However, the compaction caused by machine traffic on soils under NTS does not make crop production unviable, indicating that some intrinsic mechanisms promote the reversion of soil compaction. In this study, the influence of alternate contraction and expansion cycles was evaluated with regard to the bulk density (ρ) of a Latossolo Vermelho argiloso (clayey Oxisol) […]