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Compressibility of Oxisol aggregates under no-till in response to soil water potential
Provedor de dados: 90
Autores: Tavares Filho,João; Tessier,Daniel.
The system of no-till sowing stands out as being a technology that suits the objectives of more rational use of the soil and greater protection against the erosion. However, through till, any of it, occurs modifications of the soil's structure. This current work aims to study the influence of the energy state of the water and of the organic matter on the mechanism of compaction of Red Oxisol under no-till management system. Humid and non-deformed sample were collected in horizon AP of two agricultural areas under no-till, with and without rotation of cultures. In the laboratory, these samples were broken into fragments and sifted to obtain aggregates of 4 to 5 mm sized, which were placed in equilibrium under four matrix potentials. Thereafter, they were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Edometric assay; Void index; Total porosity; Soil compression; Soil compaction.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832009000600002