Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season
Glyphosate (GLY) is a non-selective herbicide, heavily used world-wide in agriculture, especially under no-tillage (NT) management. The objectives of this work were i - to determine the temporal and vertical variation of GLY and its main metabolite (AMPA) levels during the soybean cycle in a soil un...
| Autores principales: | , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://hdl.handle.net/20.500.12123/2574 https://www.sciencedirect.com/science/article/pii/S0016706117315689 https://doi.org/10.1016/j.geoderma.2018.02.041 |
| _version_ | 1855034987514953728 |
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| author | Soracco, Carlos Germán Villarreal, Rafael Lozano, Luis Alberto Vittori, Santiago Melani, Esteban Marino, Damian Jose Gabriel |
| author_browse | Lozano, Luis Alberto Marino, Damian Jose Gabriel Melani, Esteban Soracco, Carlos Germán Villarreal, Rafael Vittori, Santiago |
| author_facet | Soracco, Carlos Germán Villarreal, Rafael Lozano, Luis Alberto Vittori, Santiago Melani, Esteban Marino, Damian Jose Gabriel |
| author_sort | Soracco, Carlos Germán |
| collection | INTA Digital |
| description | Glyphosate (GLY) is a non-selective herbicide, heavily used world-wide in agriculture, especially under no-tillage (NT) management. The objectives of this work were i - to determine the temporal and vertical variation of GLY and its main metabolite (AMPA) levels during the soybean cycle in a soil under NT and conventional tillage (CT); ii - to determine the relationship of GLY and AMPA levels variation with different soil properties; and iii - to compare initial and final GLY and AMPA levels in the soil during a crop cycle to infer possible accumulation. GLY and AMPA contents were determined in the A horizon (0–40 cm) of a loam soil from Argentinian Pampas Region, in different dates during soybean crop cycle. Soil physical and chemical properties were also determined. GLY and AMPA were detected in all sampling dates in both treatments (GLY and AMPA contents in the soil ranged between 5.7 and 98.5 μg·kg−1; and 6.6 and 1686.0 μg·kg−1, respectively). GLY was strongly retained in the top soil in most of the sampling dates for both treatments (>80% of total GLY was found in the topsoil - 20 cm). CT treatment showed higher GLY temporal variation, favored by higher values of saturated hydraulic conductivity (K0), total macroporosity (θma) and effective macroporosity (εma), especially when strong precipitation occurred near the application. GLY vertical transport under NT seemed to be limited by low values of K0, θma, and εma. The temporal variation of GLY vertical transport was explained by the temporal variation of the studied soil physical and hydraulic properties. Total extracted GLY accumulated, with an increment between the last and the first sampling date of 54% and 82% during the crop cycle for NT and CT, respectively. |
| format | info:ar-repo/semantics/artículo |
| id | INTA2574 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA25742024-02-29T16:27:50Z Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season Soracco, Carlos Germán Villarreal, Rafael Lozano, Luis Alberto Vittori, Santiago Melani, Esteban Marino, Damian Jose Gabriel Glifosato Suelo Soja Labranza Convencional Cero-labranza Período de Crecimiento Glyphosate Soil Soybeans Conventional Tillage Zero Tillage Growth Period Glyphosate (GLY) is a non-selective herbicide, heavily used world-wide in agriculture, especially under no-tillage (NT) management. The objectives of this work were i - to determine the temporal and vertical variation of GLY and its main metabolite (AMPA) levels during the soybean cycle in a soil under NT and conventional tillage (CT); ii - to determine the relationship of GLY and AMPA levels variation with different soil properties; and iii - to compare initial and final GLY and AMPA levels in the soil during a crop cycle to infer possible accumulation. GLY and AMPA contents were determined in the A horizon (0–40 cm) of a loam soil from Argentinian Pampas Region, in different dates during soybean crop cycle. Soil physical and chemical properties were also determined. GLY and AMPA were detected in all sampling dates in both treatments (GLY and AMPA contents in the soil ranged between 5.7 and 98.5 μg·kg−1; and 6.6 and 1686.0 μg·kg−1, respectively). GLY was strongly retained in the top soil in most of the sampling dates for both treatments (>80% of total GLY was found in the topsoil - 20 cm). CT treatment showed higher GLY temporal variation, favored by higher values of saturated hydraulic conductivity (K0), total macroporosity (θma) and effective macroporosity (εma), especially when strong precipitation occurred near the application. GLY vertical transport under NT seemed to be limited by low values of K0, θma, and εma. The temporal variation of GLY vertical transport was explained by the temporal variation of the studied soil physical and hydraulic properties. Total extracted GLY accumulated, with an increment between the last and the first sampling date of 54% and 82% during the crop cycle for NT and CT, respectively. EEA Cuenca del Salado 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: Villarreal, Rafael. 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: Vittori, Santiago. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigaciones del Medio Ambiente; Argentina Fil: Melani, Esteban. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Cuenca del Salado. Agencia de Extensión Rural Chascomus; Argentina Fil: Marino, Damián J.G. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Investigaciones del Medio Ambiente; Argentina 2018-06-08T12:33:25Z 2018-06-08T12:33:25Z 2018-08-01 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/2574 https://www.sciencedirect.com/science/article/pii/S0016706117315689 0016-7061 https://doi.org/10.1016/j.geoderma.2018.02.041 eng info:eu-repo/semantics/restrictedAccess application/pdf Geoderma 323 : 13-21. (August 2018) |
| spellingShingle | Glifosato Suelo Soja Labranza Convencional Cero-labranza Período de Crecimiento Glyphosate Soil Soybeans Conventional Tillage Zero Tillage Growth Period Soracco, Carlos Germán Villarreal, Rafael Lozano, Luis Alberto Vittori, Santiago Melani, Esteban Marino, Damian Jose Gabriel Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season |
| title | Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season |
| title_full | Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season |
| title_fullStr | Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season |
| title_full_unstemmed | Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season |
| title_short | Glyphosate dynamics in a soil under conventional and no-till systems during a soybean growing season |
| title_sort | glyphosate dynamics in a soil under conventional and no till systems during a soybean growing season |
| topic | Glifosato Suelo Soja Labranza Convencional Cero-labranza Período de Crecimiento Glyphosate Soil Soybeans Conventional Tillage Zero Tillage Growth Period |
| url | http://hdl.handle.net/20.500.12123/2574 https://www.sciencedirect.com/science/article/pii/S0016706117315689 https://doi.org/10.1016/j.geoderma.2018.02.041 |
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