Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina
The agricultural activity poses the potential risk of contaminating groundwater resources because of the leaching capacity of the agrochemicals used. Glyphosate and metsulfuron-methyl are two herbicides widely used in the Pampean region of Argentina. The objective of this study was to evaluate the v...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Soil Science Society of Pakistan
2021
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| Online Access: | http://hdl.handle.net/20.500.12123/10940 http://www.se.org.pk/Papers.aspx?issueid=85 http://dx.doi.org/10.25252/SE/2021/202578 |
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| author | Gonzalo Mayoral, Eliana Soledad Aparicio, Virginia Carolina De Geronimo, Eduardo Costa, José Luis |
| author_browse | Aparicio, Virginia Carolina Costa, José Luis De Geronimo, Eduardo Gonzalo Mayoral, Eliana Soledad |
| author_facet | Gonzalo Mayoral, Eliana Soledad Aparicio, Virginia Carolina De Geronimo, Eduardo Costa, José Luis |
| author_sort | Gonzalo Mayoral, Eliana Soledad |
| collection | INTA Digital |
| description | The agricultural activity poses the potential risk of contaminating groundwater resources because of the leaching capacity of the agrochemicals used. Glyphosate and metsulfuron-methyl are two herbicides widely used in the Pampean region of Argentina. The objective of this study was to evaluate the vertical transport of both herbicides in the soil profile of a typic Argiudoll, under laboratory conditions. Bromide (equivalent to 1500 kg ha-1) was used as a non-reactive solute, and metsulfuron-methyl (equivalent to 10 g ha-1 of the active ingredient, a.i.) and glyphosate (equivalent to 5 kg ha-1 of a.i.) were used as reactive solutes. Six replicates per horizon were used. The transport parameters were estimated using the convection-dispersion equation (CDE) and analysed using mixed models. A preferential flow by macropores was the mechanism dominating the transport of the substances in the horizons under study. The following recovery percentages were found in effluents: bromide 72.4, 83.75 and 90.49%, metsulfuron-methyl 51.7, 56.5 and 67.0%, and glyphosate 0.75, 1.76 and 0% in horizons A, B and C, respectively. Metsulfuron-methyl presented higher leaching capacity in the horizons studied than glyphosate, which was retained in the first centimetres of each column. Thus, metsulfuron-methyl poses a high potential risk of contaminating groundwater, as opposed to glyphosate, which involves a low to negligible risk. |
| format | info:ar-repo/semantics/artículo |
| id | INTA10940 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | Soil Science Society of Pakistan |
| publisherStr | Soil Science Society of Pakistan |
| record_format | dspace |
| spelling | INTA109402021-12-17T20:48:21Z Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina Gonzalo Mayoral, Eliana Soledad Aparicio, Virginia Carolina De Geronimo, Eduardo Costa, José Luis Suelo Procesos de Transporte en el Suelo Aguas Subterráneas Lixiviación Flujo del Suelo Herbicidas Argentina Soil Soil Transport Processes Groundwater Leaching Slipping of Soil Herbicides The agricultural activity poses the potential risk of contaminating groundwater resources because of the leaching capacity of the agrochemicals used. Glyphosate and metsulfuron-methyl are two herbicides widely used in the Pampean region of Argentina. The objective of this study was to evaluate the vertical transport of both herbicides in the soil profile of a typic Argiudoll, under laboratory conditions. Bromide (equivalent to 1500 kg ha-1) was used as a non-reactive solute, and metsulfuron-methyl (equivalent to 10 g ha-1 of the active ingredient, a.i.) and glyphosate (equivalent to 5 kg ha-1 of a.i.) were used as reactive solutes. Six replicates per horizon were used. The transport parameters were estimated using the convection-dispersion equation (CDE) and analysed using mixed models. A preferential flow by macropores was the mechanism dominating the transport of the substances in the horizons under study. The following recovery percentages were found in effluents: bromide 72.4, 83.75 and 90.49%, metsulfuron-methyl 51.7, 56.5 and 67.0%, and glyphosate 0.75, 1.76 and 0% in horizons A, B and C, respectively. Metsulfuron-methyl presented higher leaching capacity in the horizons studied than glyphosate, which was retained in the first centimetres of each column. Thus, metsulfuron-methyl poses a high potential risk of contaminating groundwater, as opposed to glyphosate, which involves a low to negligible risk. EEA Balcarce Fil: Gonzalo Mayoral, Eliana Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Gonzalo Mayoral, Eliana Soledad. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: De Gerónimo; Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. Fil: Costa, José Luis. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina. 2021-12-17T20:42:16Z 2021-12-17T20:42:16Z 2021-12-04 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/10940 http://www.se.org.pk/Papers.aspx?issueid=85 2074-9546 (print) 2075-1141 (online) http://dx.doi.org/10.25252/SE/2021/202578 eng info:eu-repograntAgreement/INTA/PNSUELO-1134044/AR./Destino ambiental y degradación de los pesticidas agregados al suelo. info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Soil Science Society of Pakistan Soil and Environment 40 (2) : 127-140 (2021) |
| spellingShingle | Suelo Procesos de Transporte en el Suelo Aguas Subterráneas Lixiviación Flujo del Suelo Herbicidas Argentina Soil Soil Transport Processes Groundwater Leaching Slipping of Soil Herbicides Gonzalo Mayoral, Eliana Soledad Aparicio, Virginia Carolina De Geronimo, Eduardo Costa, José Luis Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina |
| title | Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina |
| title_full | Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina |
| title_fullStr | Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina |
| title_full_unstemmed | Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina |
| title_short | Metsulfuron-methyl and glyphosate transport in a mollisol soil in the Pampean region of Argentina |
| title_sort | metsulfuron methyl and glyphosate transport in a mollisol soil in the pampean region of argentina |
| topic | Suelo Procesos de Transporte en el Suelo Aguas Subterráneas Lixiviación Flujo del Suelo Herbicidas Argentina Soil Soil Transport Processes Groundwater Leaching Slipping of Soil Herbicides |
| url | http://hdl.handle.net/20.500.12123/10940 http://www.se.org.pk/Papers.aspx?issueid=85 http://dx.doi.org/10.25252/SE/2021/202578 |
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