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	Provedor de dados Rev. Bras. Ciênc. Solo (2) Agriscientia (Córdoba) (1) Autor Araújo,Fernando Silva (1) Carvalho,Rita de Cássia Ribeiro (1) Dias Junior,Moacir de Souza (1) Galantini,J.A (1) Iglesias,J.O (1) Krüger,H (1) Leite,Luiz Fernando Carvalho (1) Nunes,Ayeska Hubner Braga (1) Pinto,José Cardoso (1) Pires,Bruno da Silva (1) Rocha,Wellington Willian (1) Salviano,Adeodato Ari Cavalcante (1) Sousa,Allan Charlles Mendes de (1) Souza,Zigomar Menezes de (1) Venanzi,S (1) Mais... Palavra-chave Animal trampling (3) Soil compaction (2) No-tillage system (1) Pasture (1) Pasture grazing (1) Semiarid regions (1) Soil porosity (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2014 (1) 2010 (2) País Brazil (2) Argentina (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Soil pore distribution as affected by cattle trampling under no-till and reduced-till systems Agriscientia (Córdoba) Iglesias,J.O; Galantini,J.A; Krüger,H; Venanzi,S. Soil pore size affects soil air and water dynamics, and thus influence crop productivity. The aim of this study was to evaluate the impact of reduced-tillage (RT) and no-tillage (NT) systems on soil pore distribution under animal grazing. The soil was sampled at 0-5, 5-10, 10-15 and 15-20 cm depths before and after animal grazing. Bulk density, total porosity and the volume of three pore sizes (macropores, mesopores and micropores) were determined. Differences in total porosity between both tillage systems were statistically significant (P<0.01) in the top 10 cm layer before grazing. Lower total porosity in NT could be related to the effect of previous years&#8217;grazing. In RT, disk operations before planting the oat (Avena sativa) crop increased... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil porosity; Animal trampling; Semiarid regions. Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1668-298X2014000200004 Soil shear strength under non-irrigated and irrigated short duration grazing systems Rev. Bras. Ciênc. Solo Carvalho,Rita de Cássia Ribeiro; Rocha,Wellington Willian; Pinto,José Cardoso; Pires,Bruno da Silva; Dias Junior,Moacir de Souza; Nunes,Ayeska Hubner Braga. Pasture productivity can drop due to soil compaction caused by animal trampling. Physical and mechanical alterations are therefore extremely important indicators for pasture management. The objective of this research was to: draw and evaluate the Mohr failure line of a Red Yellow Latossol under different pasture cycles and natural forest; calculate apparent cohesion; observe possible physical alterations in this soil; and propose a correction factor for stocking rates based on shear strength properties. This study was conducted between March/2006 and March/2007 on the Experimental Farm of Fundação de Ensino Superior de Passos, in Passos, state of Minas Gerais. The total study area covered 6 ha, of which 2 ha were irrigated pasture, 2 ha non-irrigated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Soil compaction; Pasture; Animal trampling. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300004 Physical quality of a yellow latossol under integrated crop-livestock system Rev. Bras. Ciênc. Solo Araújo,Fernando Silva; Salviano,Adeodato Ari Cavalcante; Leite,Luiz Fernando Carvalho; Souza,Zigomar Menezes de; Sousa,Allan Charlles Mendes de. Soil physical quality is essential to global sustainability of agroecosystems, once it is related to processes that are essential to agricultural crop development. This study aimed to evaluate physical attributes of a Yellow Latossol under different management systems in the savanna area in the state of Piaui. This study was developed in Uruçuí southwest of the state of Piauí. Three systems of soil management were studied: an area under conventional tillage (CT) with disk plowi and heavy harrow and soybean crop; an area under no-tillage with soybean-maize rotation and millet as cover crop (NT + M); two areas under Integrated Crop-Livestock System, with five-month pasture grazing and soybean cultivation and then continuous pasture grazing (ICL + S and ICL +... Tipo: Info:eu-repo/semantics/article Palavras-chave: No-tillage system; Soil compaction; Animal trampling; Pasture grazing. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300013 Registros recuperados: 3 Primeira ... 1 ... Última

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