Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/123492
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Effect of formulation and repeated applications on the enantioselectivity of metalaxyl dissipation and leaching in soil |
Otros títulos: | Enantioselective behavior of metalaxyl in soil under repeated applications | Autor: | Celis, Rafael CSIC ORCID ; Gámiz, B. CSIC ORCID; Adelino, M. A. CSIC; Cornejo, J. CSIC ORCID; Hermosín, M.C. CSIC ORCID | Palabras clave: | Chiral pesticides Degradation Enantiomer Layered double hydroxides Leaching |
Fecha de publicación: | 1-oct-2015 | Editor: | Society of Chemical Industry John Wiley & Sons |
Citación: | Pest Management Science (71)11: 1572-1581 (2015) | Resumen: | BACKGROUND: Soil incubation and column leaching experiments were conducted to address the question of whether the type of formulation (unsupported versus clay supported) and repeated applications of the chiral fungicide (RS)-metalaxyl affected the enantioselectivity of its dissipation and leaching in a slightly alkaline, loamy sand agricultural soil. RESULTS: Regardless of the type of formulation and the number of fungicide applications, the R-enantiomer of metalaxyl was degraded faster than the S-enantiomer, but the individual degradation rates of R- and S-metalaxyl were highly affected by the different application regimes assayed (t1/2 = 2-104 days). Repeated applications accelerated the degradation of the biologically active R-metalaxyl enantiomer, whereas they led to slower degradation of the non-active S-metalaxyl enantiomer. The type of formulation had less influence on the dissipation rates of the enantiomers. For all formulations tested, soil column leachates became increasingly enriched in S-enantiomer as the number of fungicide applications was increased, and application of metalaxyl to soil columns as clay-based formulations reduced the leaching of both enantiomers. CONCLUSION: Pesticide application conditions can greatly influence the enantioselective dissipation of chiral pesticides in soil, and hence are expected to exert a great impact on both the biological efficacy and the environmental chiral signatures of pesticides applied as mixtures of enantiomers or racemates to agricultural soils. © 2015 Society of Chemical Industry. | Descripción: | 10 páginas.-- 5 imágenes.-- 2 tablas.-- 52 referencias | Versión del editor: | http:// dx.doi.org/10.1002/ps.3963 | URI: | http://hdl.handle.net/10261/123492 | DOI: | 10.1002/ps.3963 | ISSN: | 1526-498X |
Aparece en las colecciones: | (IRNAS) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Effect_formulation_repeated_RCelis.pdf | 891,71 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
25
checked on 20-abr-2024
WEB OF SCIENCETM
Citations
22
checked on 27-feb-2024
Page view(s)
223
checked on 24-abr-2024
Download(s)
302
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.