Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method
Soil water sorptivity (S) is an important property that measures the soil capacity to take water rapidly under capillary forces. Usually S is not included in soil laboratory routine experiments because there is not a widely accepted methodology for its determination. The objectives of this work were...
| Autores principales: | , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
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2018
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| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0167198716302707 http://hdl.handle.net/20.500.12123/2579 https://doi.org/10.1016/j.still.2016.12.013 |
| _version_ | 1855034988244762624 |
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| author | Villarreal, Rafael Soracco, Carlos Germán Lozano, Luis Alberto Melani, Esteban Sarli, Guillermo Oliverio |
| author_browse | Lozano, Luis Alberto Melani, Esteban Sarli, Guillermo Oliverio Soracco, Carlos Germán Villarreal, Rafael |
| author_facet | Villarreal, Rafael Soracco, Carlos Germán Lozano, Luis Alberto Melani, Esteban Sarli, Guillermo Oliverio |
| author_sort | Villarreal, Rafael |
| collection | INTA Digital |
| description | Soil water sorptivity (S) is an important property that measures the soil capacity to take water rapidly under capillary forces. Usually S is not included in soil laboratory routine experiments because there is not a widely accepted methodology for its determination. The objectives of this work were: i) to propose a modification on the Leeds-Harrison et al. (1994) method (LH) to determine S in undisturbed soil samples; and ii) to determine the temporal variation of S and saturated hydraulic conductivity (K0) in a soil under conventional tillage (CT) and no-tillage (NT) treatments. Additionally, the influence of soil pore size distribution (PoSD) on S was analyzed. Undisturbed soil samples (5 cm height, 5 cm diameter) were collected from the upper 10 depth cm of each plot, from each treatment at four different times during a maize growing season (before seeding (BS), 6 leaf stage (V6), physiological maturity (R5) and after harvest (AH)). PoSD was determined in a sand box apparatus. After that, S was determined in the same samples using a modified Leeds-Harrison approach. For the proposed modification the difference between initial and final water content was actually gravimetrically measured in each sample, rather than considering it equal to the total porosity (TP). The proposed improvement was validated comparing the obtained S values with those calculated using standard one-dimension horizontal infiltration in sieved soil (0.098 vs 0.079 cm s−1/2, respectively) and in calibrated sand (0.041 vs 0.040 cm s−1/2, respectively). These differences were not significant. Both S and K0 were significantly affected by the sampling time in both treatments (mean values ranged between 0.022 and 0.077 cm s−1/2 and 1.57 and 3.75 cm s−1 respectively). We did not find a significant dependence of S with three pore size ranges analyzed. The proposed improvement of the Leeds-Harrison method allowed determining the temporal variation of S in representative undisturbed soil samples. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2579 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA25792018-06-29T18:23:52Z Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method Villarreal, Rafael Soracco, Carlos Germán Lozano, Luis Alberto Melani, Esteban Sarli, Guillermo Oliverio Suelo Labranza Convencional Cero-labranza Experimentación en Laboratorio Retención de Agua por el Suelo Porosidad del Suelo Soi Conventional Tillage Zero Tillage Laboratory Experimentation Soil Water Retention Soil Porosity Soil water sorptivity (S) is an important property that measures the soil capacity to take water rapidly under capillary forces. Usually S is not included in soil laboratory routine experiments because there is not a widely accepted methodology for its determination. The objectives of this work were: i) to propose a modification on the Leeds-Harrison et al. (1994) method (LH) to determine S in undisturbed soil samples; and ii) to determine the temporal variation of S and saturated hydraulic conductivity (K0) in a soil under conventional tillage (CT) and no-tillage (NT) treatments. Additionally, the influence of soil pore size distribution (PoSD) on S was analyzed. Undisturbed soil samples (5 cm height, 5 cm diameter) were collected from the upper 10 depth cm of each plot, from each treatment at four different times during a maize growing season (before seeding (BS), 6 leaf stage (V6), physiological maturity (R5) and after harvest (AH)). PoSD was determined in a sand box apparatus. After that, S was determined in the same samples using a modified Leeds-Harrison approach. For the proposed modification the difference between initial and final water content was actually gravimetrically measured in each sample, rather than considering it equal to the total porosity (TP). The proposed improvement was validated comparing the obtained S values with those calculated using standard one-dimension horizontal infiltration in sieved soil (0.098 vs 0.079 cm s−1/2, respectively) and in calibrated sand (0.041 vs 0.040 cm s−1/2, respectively). These differences were not significant. Both S and K0 were significantly affected by the sampling time in both treatments (mean values ranged between 0.022 and 0.077 cm s−1/2 and 1.57 and 3.75 cm s−1 respectively). We did not find a significant dependence of S with three pore size ranges analyzed. The proposed improvement of the Leeds-Harrison method allowed determining the temporal variation of S in representative undisturbed soil samples. EEA Cuenca del Salado Fil: Villarreal, Rafael. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Soracco, Carlos Germán. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Lozano, Luis Alberto. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Melani, Esteban. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado. Agencia de Extensión Rural Chascomus; Argentina Fil: Sarli, Guillermo Oliverio. Universidad Nacional de La Plata. Facultad de Ciencias Agrarias y Forestales; Argentina 2018-06-08T14:44:12Z 2018-06-08T14:44:12Z 2017-05 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0167198716302707 http://hdl.handle.net/20.500.12123/2579 0167-1987 https://doi.org/10.1016/j.still.2016.12.013 eng info:eu-repo/semantics/restrictedAccess application/pdf Soil and tillage research 168 : 92-98. (May 2017) |
| spellingShingle | Suelo Labranza Convencional Cero-labranza Experimentación en Laboratorio Retención de Agua por el Suelo Porosidad del Suelo Soi Conventional Tillage Zero Tillage Laboratory Experimentation Soil Water Retention Soil Porosity Villarreal, Rafael Soracco, Carlos Germán Lozano, Luis Alberto Melani, Esteban Sarli, Guillermo Oliverio Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method |
| title | Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method |
| title_full | Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method |
| title_fullStr | Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method |
| title_full_unstemmed | Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method |
| title_short | Temporal variation of soil sorptivity under conventional and no-till systems determined by a simple laboratory method |
| title_sort | temporal variation of soil sorptivity under conventional and no till systems determined by a simple laboratory method |
| topic | Suelo Labranza Convencional Cero-labranza Experimentación en Laboratorio Retención de Agua por el Suelo Porosidad del Suelo Soi Conventional Tillage Zero Tillage Laboratory Experimentation Soil Water Retention Soil Porosity |
| url | https://www.sciencedirect.com/science/article/pii/S0167198716302707 http://hdl.handle.net/20.500.12123/2579 https://doi.org/10.1016/j.still.2016.12.013 |
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