Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas
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 ploug...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Elsevier
2020
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| Online Access: | http://hdl.handle.net/20.500.12123/7192 https://www.sciencedirect.com/science/article/pii/S0167198705000747 https://doi.org/10.1016/j.still.2005.02.025 |
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| author | Sasal, Maria Carolina Andriulo, Adrian Enrique Taboada, M.A. |
| author_browse | Andriulo, Adrian Enrique Sasal, Maria Carolina Taboada, M.A. |
| author_facet | Sasal, Maria Carolina Andriulo, Adrian Enrique Taboada, M.A. |
| author_sort | Sasal, Maria Carolina |
| collection | INTA Digital |
| description | 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 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. |
| format | info:ar-repo/semantics/artículo |
| id | INTA7192 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA71922020-05-05T14:26:54Z Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas Sasal, Maria Carolina Andriulo, Adrian Enrique Taboada, M.A. Suelo Limoso Infiltración Circulación del Agua Labranza Mínima Propiedades del Suelo Porosidad Silty Soils Infiltration Water Circulation Minimum Tillage Soil Properties Porosity Labranza Cero Región Pampeana 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 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. EEA Pergamino Fil: Sasal, María Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Grupo Suelos; Argentina Fil: Andriulo, Adrián. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Pergamino. Departamento de Laboratorio de Suelo; Argentina Fil: Taboada, M.A. Universidad de Buenos Aires. Facultad de Agronomía. Departamento Suelos; Argentina 2020-05-05T14:13:09Z 2020-05-05T14:13:09Z 2006-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/7192 https://www.sciencedirect.com/science/article/pii/S0167198705000747 0167-1987 https://doi.org/10.1016/j.still.2005.02.025 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Soil and Tillage Research 87 (1) : 9-18. (May 2006) |
| spellingShingle | Suelo Limoso Infiltración Circulación del Agua Labranza Mínima Propiedades del Suelo Porosidad Silty Soils Infiltration Water Circulation Minimum Tillage Soil Properties Porosity Labranza Cero Región Pampeana Sasal, Maria Carolina Andriulo, Adrian Enrique Taboada, M.A. Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas |
| title | Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas |
| title_full | Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas |
| title_fullStr | Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas |
| title_full_unstemmed | Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas |
| title_short | Soil porosity characteristics and water movement under zero tillage in silty soils in Argentinian Pampas |
| title_sort | soil porosity characteristics and water movement under zero tillage in silty soils in argentinian pampas |
| topic | Suelo Limoso Infiltración Circulación del Agua Labranza Mínima Propiedades del Suelo Porosidad Silty Soils Infiltration Water Circulation Minimum Tillage Soil Properties Porosity Labranza Cero Región Pampeana |
| url | http://hdl.handle.net/20.500.12123/7192 https://www.sciencedirect.com/science/article/pii/S0167198705000747 https://doi.org/10.1016/j.still.2005.02.025 |
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