3 results

Structural sustainability of cambisol under different land use system

Paula Cristina Caruana Martins, Moacir de Souza Dias Junior, Ayodele Ebenezer Ajayi, Fátima Maria de Souza Moreira

01/Dec/2012

Incongruous management techniques have been associated with some significant loss of agricultural land to degradation in many parts of the world. Land degradation results in the alteration of physical, chemical and biological properties of the soil, thereby posing a serious threat to sustainable agricultural development. In this study, our objective is to evaluate the changes in a Cambisol structure under six land use systems using the load bearing capacity model. Sampling was conducted in Amazonas Region, Brazil, in the following […]

Load bearing capacity and critical water content of a Latossol induced by different managements

Cezar Francisco Araujo-Junior, Moacir de Souza Dias Junior, Paulo Tácito Gontijo Guimarães, Elifas Nunes Alcântara

01/Feb/2011

Different weed managements in coffee have led to structural changes, affecting the soil physical quality. Therefore, information on the load bearing capacity of the soil under different weed managements is essential to establish a sustainable soil management under coffee. The objectives of this study were to: (a) assess the influence of different weed managements over three decades on the load bearing capacity of a Dystroferric Red Latosol (LVdf) cultivated with coffee on the Epamig Farm in São Sebastião do Paraíso, […]

Estimating soil susceptibility to compaction and load support capacity based on physical parameters of soils from Rio Grande do Sul State

Luis Eduardo Akiyoshi Sanches Suzuki, Dalvan José Reinert, José Miguel Reichert, Cláudia Liane Rodrigues de Lima

01/Jun/2008

Quantifying the relationship between physical and mechanical soil properties can contribute to the development of pedotransfer functions that allow estimating hard-to-measure soil properties. The objective of this study was to evaluate the interrelations between susceptibility to compaction and load support with some physical properties of soils from Southern Brazil. Penetration resistance, moisture, bulk density and compressibility of six soils were evaluated. In a model including soil moisture and bulk density as independent variables, the relation with penetration resistance values obtained […]