S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use
The ability to predict fate of pesticides in the environment is crucial for sustainable management. This process starts with a proper characterization of the dissipation of a parent compound under different sets of conditions. There is widespread use of S-metolachlor across multiple common cropping...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-10-01
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| Series: | Environmental Advances |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666765722001533 |
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| author | K. Badou-Jeremie Kouame Mary C. Savin Cammy D. Willett Matthew B. Bertucci Thomas R. Butts Erin Grantz Nilda Roma-Burgos |
| author_facet | K. Badou-Jeremie Kouame Mary C. Savin Cammy D. Willett Matthew B. Bertucci Thomas R. Butts Erin Grantz Nilda Roma-Burgos |
| author_sort | K. Badou-Jeremie Kouame |
| collection | DOAJ |
| description | The ability to predict fate of pesticides in the environment is crucial for sustainable management. This process starts with a proper characterization of the dissipation of a parent compound under different sets of conditions. There is widespread use of S-metolachlor across multiple common cropping systems, modes of action among commercially available herbicides are limited, and concern is rising of increase in resistance to S-metolachlor in problematic weeds, including species such as Palmer amaranth (Amaranthus palmeri). Therefore, S-metolachlor dissipation was investigated in fortified soil collected from a field plot experiment in order to determine the influence of single or repeated within-season herbicide applications to accelerate dissipation. S-metolachlor dissipation in fortified soils was then investigated in samples collected from paired, commercial fields, all of silt loam soil texture. Producer fields from five Arkansas counties were categorized as low-use (0 to 2 years of application) or high-use (5 to 6 years of application within the past six years). S-metolachlor concentrations were extracted from soil during a 56-day incubation and S-metolachlor degradation was modeled to calculate half-life. Two within-season applications of S-metolachlor increased persistence in fortified soils, and dissipation was faster in soils collected 1 and 24 days compared to 59 days after planting soybean [Glycine max (L.) Merr.].The half-life of S-metolachlor did not decrease in soil from fields with high-use (5 to 6 years) compared to soil collected from fields with low-use (0 to 2 years) of herbicide application history. Dissipation of S-metolachlor in soil was not enhanced by repeated short-term intra-annual or longer-term inter-annual applications. Results highlight the importance of management practices and soil properties in assessing the fate of S-metolachlor. |
| first_indexed | 2024-04-13T13:46:30Z |
| format | Article |
| id | doaj.art-322f8ae4ef054407bfe9fc73b1c511a6 |
| institution | Directory Open Access Journal |
| issn | 2666-7657 |
| language | English |
| last_indexed | 2024-04-13T13:46:30Z |
| publishDate | 2022-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Environmental Advances |
| spelling | doaj.art-322f8ae4ef054407bfe9fc73b1c511a62022-12-22T02:44:27ZengElsevierEnvironmental Advances2666-76572022-10-019100318S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide useK. Badou-Jeremie Kouame0Mary C. Savin1Cammy D. Willett2Matthew B. Bertucci3Thomas R. Butts4Erin Grantz5Nilda Roma-Burgos6CSES Department, 115 Plant Sciences, University of Arkansas System, Fayetteville, AR 72701, United StatesCSES Department, 115 Plant Sciences, University of Arkansas System, Fayetteville, AR 72701, United States; Corresponding author.CSES Department, 115 Plant Sciences, University of Arkansas System, Fayetteville, AR 72701, United StatesHORT Department, 316 Plant Sciences, University of Arkansas System, Fayetteville, AR 72701, United StatesCSES Department, Cooperative Extension Service, University of Arkansas System, Lonoke, AR 72086 United StatesCSES Department, 115 Plant Sciences, University of Arkansas System, Fayetteville, AR 72701, United StatesCSES Department, 115 Plant Sciences, University of Arkansas System, Fayetteville, AR 72701, United StatesThe ability to predict fate of pesticides in the environment is crucial for sustainable management. This process starts with a proper characterization of the dissipation of a parent compound under different sets of conditions. There is widespread use of S-metolachlor across multiple common cropping systems, modes of action among commercially available herbicides are limited, and concern is rising of increase in resistance to S-metolachlor in problematic weeds, including species such as Palmer amaranth (Amaranthus palmeri). Therefore, S-metolachlor dissipation was investigated in fortified soil collected from a field plot experiment in order to determine the influence of single or repeated within-season herbicide applications to accelerate dissipation. S-metolachlor dissipation in fortified soils was then investigated in samples collected from paired, commercial fields, all of silt loam soil texture. Producer fields from five Arkansas counties were categorized as low-use (0 to 2 years of application) or high-use (5 to 6 years of application within the past six years). S-metolachlor concentrations were extracted from soil during a 56-day incubation and S-metolachlor degradation was modeled to calculate half-life. Two within-season applications of S-metolachlor increased persistence in fortified soils, and dissipation was faster in soils collected 1 and 24 days compared to 59 days after planting soybean [Glycine max (L.) Merr.].The half-life of S-metolachlor did not decrease in soil from fields with high-use (5 to 6 years) compared to soil collected from fields with low-use (0 to 2 years) of herbicide application history. Dissipation of S-metolachlor in soil was not enhanced by repeated short-term intra-annual or longer-term inter-annual applications. Results highlight the importance of management practices and soil properties in assessing the fate of S-metolachlor.http://www.sciencedirect.com/science/article/pii/S2666765722001533S-metolachlorDegradationHalf-lifeDissipationPesticide fateWeed management |
| spellingShingle | K. Badou-Jeremie Kouame Mary C. Savin Cammy D. Willett Matthew B. Bertucci Thomas R. Butts Erin Grantz Nilda Roma-Burgos S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use Environmental Advances S-metolachlor Degradation Half-life Dissipation Pesticide fate Weed management |
| title | S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use |
| title_full | S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use |
| title_fullStr | S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use |
| title_full_unstemmed | S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use |
| title_short | S-metolachlor persistence in soil as influenced by within-season and inter-annual herbicide use |
| title_sort | s metolachlor persistence in soil as influenced by within season and inter annual herbicide use |
| topic | S-metolachlor Degradation Half-life Dissipation Pesticide fate Weed management |
| url | http://www.sciencedirect.com/science/article/pii/S2666765722001533 |
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