3 results

Soil chemical and physical quality under natural tree vegetation and pasture in the Pantanal wetlands, South of Mato Grosso, Brazil

Evaldo Luis Cardoso, Marx Leandro Naves Silva, Nilton Curi, Mozart Martins Ferreira, Diego Antônio França de Freitas

01/Apr/2011

The search for improved productivity of livestock has stimulated deforestation of forested areas in the Pantanal for pasture planting, raising concerns about the sustainability of the natural resources. To study some aspects of land use in the Pantanal of Mato Grosso, Brazil, this study aimed to evaluate the changes in chemical and physical soil properties due to the conversion of native tree vegetation in pasture, and the exposure of native pasture to a continuous grazing system. The environments of the […]

Influence of soil management on chemical and physical soil properties along a toposequence in the Araguaia river basin, State of Tocantins

Ana Flávia Gouveia de Faria, Antonio Clementino dos Santos, Thiago Martins dos Santos, Felipe Batistella Filho

01/Apr/2010

The conversion of native vegetation into agricultural areas can modify soil organic matter content and decomposition and synthesis processes and therefore the nutrient avalilability. The aim of this study was to evaluate the chemical and physical soil properties (0-15 cm depth) in a toposequence characterized by planted pasture beside the native Cerrado vegetation cover. The study was carried out in Colméia, State of Tocantins. Ten sampling points were determined (five samples in native vegetation and five samples in pasture) for […]

Soil chemical properties under different uses in an irrigated area in the semi arid region of Pernambuco, Brazil

Rossini Mattos Corrêa, Maria Betânia Galvão dos Santos Freire, Rinaldo Luiz Caraciolo Ferreira, Fernando José Freire, Luiz Guilherme Medeiros Pessoa, Marcelo Alves Miranda, [...]

01/Apr/2009

Soils developed at semi-arid climate can present salt accumulation, which compromise the agricultural use, being increased by inadequate irrigation management. Based on the use, the degradation of these soils can occur at higher or smaller intensity. This study aimed to evaluate the effect of soil uses based on physical and chemical properties of an irrigated area in the semi-arid region of northeastern Brazil. The soil uses were annual crops (C), fruticulture (F), pasture (P), discarded lands (D), or native vegetation […]