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	Provedor de dados Rev. Bras. Ciênc. Solo (3) CIGR Journal (1) Autor Alves,Marlene Cristina (1) Collazo,Daniel Jorajuria (1) Fasinmirin, Johnson Toyin (1) Filgueira,Roberto Raúl (1) Lozano,Luis Alberto (1) Olorunfemi, Idowu Ezekiel (1) Olufayo, Ayorinde Akinlabi (1) Palancar,Telmo Cecilio (1) Santos Batista Bonini,Carolina dos (1) Sarli,Guillermo Oliveiro (1) Soracco,Carlos Germán (1) Taiwo, Adeyemi Akinjide (1) Tavares Filho,João (1) Tessier,Daniel (1) Villarreal,Rafael (1) Mais... Palavra-chave Total porosity (4) Hydraulic conductivity (2) Cumulative infiltration (1) Edometric assay (1) Effective porosity (1) Soil bulk density (1) Soil compaction (1) Soil compression (1) Soil degradation (1) Soil pore anisotropy (1) Soil quality (1) Soil water movement (1) Sorptivity (1) Void index (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2016 (1) 2015 (1) 2011 (1) 2009 (1) País Brazil (3) China (1) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Compressibility of Oxisol aggregates under no-till in response to soil water potential Rev. Bras. Ciênc. Solo 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 EFFECTS OF COMPACTION DUE TO MACHINERY TRAFFIC ON SOIL PORE CONFIGURATION Rev. Bras. Ciênc. Solo Soracco,Carlos Germán; Lozano,Luis Alberto; Villarreal,Rafael; Palancar,Telmo Cecilio; Collazo,Daniel Jorajuria; Sarli,Guillermo Oliveiro; Filgueira,Roberto Raúl. Soil compaction has been recognized as a severe problem in mechanized agriculture and has an influence on many soil properties and processes. Yet, there are few studies on the long-term effects of soil compaction, and the development of soil compaction has been shown through a limited number of soil parameters. The objectives of this study were to evaluate the persistence of soil compaction effects (three traffic treatments: T0, without traffic; T3, three tractor passes; and T5, five tractor passes) on pore system configuration, through static and dynamic determinations; and to determine changes in soil pore orientation due to soil compaction through measurement of hydraulic conductivity of saturated soil in samples taken vertically and horizontally.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Effective porosity; Total porosity; Soil pore anisotropy; Hydraulic conductivity. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000200408 Recovery of soil physical properties by green manure, liming, gypsum and pasture and spontaneous native species¹ Rev. Bras. Ciênc. Solo Santos Batista Bonini,Carolina dos; Alves,Marlene Cristina. Inadequate usage can degrade natural resources, particularly soils. More attention has been paid to practices aiming at the recovery of degraded soils in the last years, e.g, the use of organic fertilizers, liming and introduction of species adapted to adverse conditions. The purpose of this study was therefore to investigate the recovery of physical properties of a Red Latosol (Oxisol) degraded by the construction of a hydroelectric power station. In the study area, a soil layer about 8m thick had been withdrawn by heavy machines leading not only to soil compaction, but resulting in high-degree degradation. The experiment was arranged in a completely randomized design with nine treatments and four replications. The treatments consisted of: 1- soil... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil bulk density; Total porosity; Soil degradation; Soil quality. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000400034 Spatial analysis of soil hydraulic properties of an alfisol in Akure, Southwestern Nigeria CIGR Journal Olorunfemi, Idowu Ezekiel; Taiwo, Adeyemi Akinjide; Olufayo, Ayorinde Akinlabi; Fasinmirin, Johnson Toyin. The knowledge of soil hydraulic properties and processes leads to better predictions of both agricultural and environment impact. The objectives of this research are to determine, predict and compare the relationship between measured and estimated soil hydraulic properties and also spatially characterize these properties using geostatistics. Mini disc infiltrometer at a suction rate of 2 cm per second was used for the determination of soil hydraulic properties at different points of an alfisol in Nigeria. Soil samples (100, 200 and 300 mm depths) were also analyzed to determine soil bulk density (BD), total porosity (PT) and water holding capacity (WHC). The coefficients of variation (CV) of the textural classes indicate a non-considerable variability of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sorptivity; Cumulative infiltration; Hydraulic conductivity; Soil water movement; Total porosity. Ano: 2016 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3418 Registros recuperados: 4 Primeira ... 1 ... Última

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