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Abstract
The objective of this study was to identify pore characteristics (quantity, distribution, stability and orientation of pores) that condition water dynamics under continuous zero tillage (ZT) on silty soils of the Argentinian Rolling Pampas. Soil properties were analyzed under continuous chisel plough (CP) and ZT treatments from three trials with different duration and crop sequence. The following soil properties of A horizon were analyzed from 0 to 0.05 [ver mas...]
dc.contributor.authorSasal, Maria Carolina
dc.contributor.authorAndriulo, Adrian Enrique
dc.contributor.authorTaboada, M.A.
dc.date.accessioned2020-05-05T14:13:09Z
dc.date.available2020-05-05T14:13:09Z
dc.date.issued2006-05
dc.identifier.issn0167-1987
dc.identifier.otherhttps://doi.org/10.1016/j.still.2005.02.025
dc.identifier.urihttp://hdl.handle.net/20.500.12123/7192
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0167198705000747
dc.description.abstractThe objective of this study was to identify pore characteristics (quantity, distribution, stability and orientation of pores) that condition water dynamics under continuous zero tillage (ZT) on silty soils of the Argentinian Rolling Pampas. Soil properties were analyzed under continuous chisel plough (CP) and ZT treatments from three trials with different duration and crop sequence. The following soil properties of A horizon were analyzed from 0 to 0.05 and from 0.10 to 0.15 m depths: bulk density, pore size distribution, pore origin distribution, aggregate stability index, infiltration rate and organic matter. Preferred pore orientation was carried out by introducing the sampling cylinders in vertical and horizontal direction and then discriminating by pore size. Total porosity of A horizon under CP was 3.5% higher than under ZT. This could be attributed to macro and mesopores as well as to structural porosity. Aggregates were 30% more stable in ZT than under CP in the top at 0.05 m due to a 21% increase in organic matter. However, infiltration rate was not improved under ZT. Under ZT, there was a tendency of macropores to become orientated in parallel to the soil surface. This horizontal preferential macropore orientation was critical in determining water infiltration. The susceptibility to stratify the structure in the first centimeters of the soil under ZT was attributed to the predominance of soybean in the crop sequence.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevieres_AR
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceSoil and Tillage Research 87 (1) : 9-18. (May 2006)es_AR
dc.subjectSuelo Limosoes_AR
dc.subjectSilty Soilseng
dc.subjectInfiltraciónes_AR
dc.subjectInfiltrationeng
dc.subjectCirculación del Aguaes_AR
dc.subjectWater Circulationeng
dc.subjectLabranza Mínimaes_AR
dc.subjectMinimum Tillageeng
dc.subjectPropiedades del Sueloes_AR
dc.subjectSoil Propertieseng
dc.subjectPorosidades_AR
dc.subjectPorosityeng
dc.subject.otherLabranza Ceroes_AR
dc.subject.otherRegión Pampeana
dc.titleSoil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampases_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenEEA Pergaminoes_AR
dc.description.filFil: Sasal, María Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Grupo Suelos; Argentinaes_AR
dc.description.filFil: Andriulo, Adrián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; Argentinaes_AR
dc.description.filFil: Taboada, M.A. Universidad de Buenos Aires. Facultad de Agronomía. Departamento Suelos; Argentinaes_AR
dc.subtypecientifico


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