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	Provedor de dados Rev. Bras. Ciênc. Solo (4) Autor Filgueira,Roberto Raúl (4) Lozano,Luis Alberto (4) Soracco,Carlos Germán (3) Sarli,Guillermo O. (2) Villarreal,Rafael (2) Balbuena,Roberto (1) Buda,Vicente S. (1) Collazo,Daniel Jorajuria (1) Germán Soracco,Carlos (1) Palancar,Telmo Cecilio (1) Ressia,Juan M. (1) Ressia,Juan Manuel (1) Sarli,Guillermo Oliveiro (1) Mais... Palavra-chave Effective porosity (3) No tillage (2) Chisel plow (1) Conventional tillage (1) Crop rotation (1) Hydraulic conductivity (1) Infiltration (1) Pore connectivity index (1) Soil loosening (1) Soil pore anisotropy (1) Tension disc infiltrometer (1) Texture (1) Total porosity (1) Water retention curve (1) Water-conducting porosity (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2016 (1) 2015 (1) 2014 (1) 2012 (1) País Brazil (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Contribution of macroporosity to water flux of a soil under different tillage systems Rev. Bras. Ciênc. Solo Soracco,Carlos Germán; Lozano,Luis Alberto; Balbuena,Roberto; Ressia,Juan Manuel; Filgueira,Roberto Raúl. In view of the importance of the macroporosity for the water transport properties of soils, its quantitative assessment is a challenging task. Measurements of hydraulic conductivity (K) at different soil water tensions and the quantification of water-conducting macropores (θM) of a soil under different tillage systems could help understand the effects on the soil porous system and related hydraulic properties. The purpose of this study was to assess the effects of Conventional Tillage (CT), Chisel Plow (CP) and No Tillage (NT) on θM and on K; and to quantify the contribution of macroporosity to total water flux in a loam soil. A tension disc infiltrometer was used at two soil water pressure heads (-5 cm, and 0) to infer θM and K, during fallow.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Tension disc infiltrometer; No tillage; Chisel plow; Conventional tillage; Effective porosity. Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000400009 Stabilization of soil hydraulic properties under a long term no-till system Rev. Bras. Ciênc. Solo Lozano,Luis Alberto; Germán Soracco,Carlos; Buda,Vicente S.; Sarli,Guillermo O.; Filgueira,Roberto Raúl. The area under the no-tillage system (NT) has been increasing over the last few years. Some authors indicate that stabilization of soil physical properties is reached after some years under NT while other authors debate this. The objective of this study was to determine the effect of the last crop in the rotation sequence (1st year: maize, 2nd year: soybean, 3rd year: wheat/soybean) on soil pore configuration and hydraulic properties in two different soils (site 1: loam, site 2: sandy loam) from the Argentinean Pampas region under long-term NT treatments in order to determine if stabilization of soil physical properties is reached apart from a specific time in the crop sequence. In addition, we compared two procedures for evaluating water-conducting... Tipo: Info:eu-repo/semantics/article Palavras-chave: Infiltration; Crop rotation; Water-conducting porosity; No tillage; Texture. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400024 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 Soil Physical Quality and Soybean Yield as Affected by Chiseling and Subsoiling of a No-Till Soil Rev. Bras. Ciênc. Solo Lozano,Luis Alberto; Soracco,Carlos Germán; Villarreal,Rafael; Ressia,Juan M.; Sarli,Guillermo O.; Filgueira,Roberto Raúl. ABSTRACT The concept of soil physical quality (SPQ) is currently under discussion, and an agreement about which soil physical properties should be included in the SPQ characterization has not been reached. The objectives of this study were to evaluate the ability of SPQ indicators based on static and dynamic soil properties to assess the effects of two loosening treatments (chisel plowing to 0.20 m [ChT] and subsoiling to 0.35 m [DL]) on a soil under NT and to compare the performance of static- and dynamic-based SPQ indicators to define soil proper soil conditions for soybean yield. Soil sampling and field determinations were carried out after crop harvest. Soil water retention curve was determined using a tension table, and field infiltration was measured... Tipo: Info:eu-repo/semantics/article Palavras-chave: Effective porosity; Water retention curve; Soil loosening; Pore connectivity index. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100510 Registros recuperados: 4 Primeira ... 1 ... Última

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