Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments

5 tablas, 3 figuras y 39 páginas.

Detalles Bibliográficos
Autores: Marín Benito, Jesús María, Carpio, M. José, Sánchez Martín, M. Jesús, Rodríguez Cruz, M. Sonia
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/178585
Acceso en línea:http://hdl.handle.net/10261/178585
Access Level:acceso abierto
Palabra clave:Degradation
Herbicides
Soil
Spent mushroom substrate
Green compost
Temperatures
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spelling Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendmentsMarín Benito, Jesús MaríaCarpio, M. JoséSánchez Martín, M. JesúsRodríguez Cruz, M. SoniaDegradationHerbicidesSoilSpent mushroom substrateGreen compostTemperatures5 tablas, 3 figuras y 39 páginas.A laboratory study was designed to assess the following: i) the degradation kinetics of chlorotoluron and flufenacet at two different temperatures, 6 °C and 16 °C, in an unamended agricultural soil and one amended with spent mushroom substrate (SMS) and green compost (GC), and ii) the formation of the main metabolites of both herbicides with potential risk for water pollution over degradation time. The aim was to determine the dependence of these herbicide degradations on temperature (Q10 factor) using kinetic parameters, which is essential information for the later simulation of herbicide environmental fate with FOCUS models. SMS and GC were applied in situ to the natural soil as organic amendments at rates of 140 or 85 t residue ha−1, respectively. Unamended and amended soils were taken from the 0–10 cm topsoil of experimental plots (three replicates/treatment) located on an agricultural farm. Samples of soil + herbicides were incubated at 6 °C or 16 °C under laboratory conditions. The degradation curves of chlorotoluron and flufenacet were fitted to single first-order and first-order multicompartment kinetic models, respectively. The flufenacet degradation, the more hydrophobic herbicide, was slower than that of chlorotoluron in all the treatments. The application of the organic amendments to soil increased the half-lives (DT50) for both herbicides incubated at 6 °C (1.3–1.9 times) and 16 °C (1.4–1.9 times) due to their higher sorption and lower bioavailability for degradation in amended soils. The herbicides recorded a faster degradation at 16 °C than at 6 °C (Q10 = 1.9–2.8) due to the increased microbial biomass and/or activity with temperature. The metabolites desmethyl chlorotoluron, flufenacet ESA and flufenacet OA were detected in all the soil treatments at both incubation temperatures. The determination of Q10 factors in amended soils is very valuable for generating accurate input data for pesticide fate models such as FOCUS in order to improve the evaluation of the leaching of herbicides and their transformation products, which is a relevant goal to maintain the sustainability of agricultural systems.This work has been funded by MINECO/FEDER UE (Project AGL2015-69485-R). J. M. Marín-Benito thanks MINECO for his Juan de la Cierva-Incorporación contract and M. J. Carpio thanks Junta de Castilla y León for his predoctoral contract. The authors thank J. M. Ordax by its technical assistance.Peer reviewedElsevierMinisterio de Economía y Competitividad (España)European CommissionMarín Benito, Jesús María [0000-0002-8801-7389]Sánchez Martín, María Jesús [0000-0002-8304-1232]Rodríguez Cruz, M. Sonia [0000-0001-6748-3391]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/178585reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2015-69485-Rhttps://doi.org/10.1016/j.scitotenv.2018.11.015Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1785852026-05-22T06:33:51Z
dc.title.none.fl_str_mv Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
title Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
spellingShingle Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
Marín Benito, Jesús María
Degradation
Herbicides
Soil
Spent mushroom substrate
Green compost
Temperatures
title_short Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
title_full Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
title_fullStr Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
title_full_unstemmed Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
title_sort Previous degradation study of two herbicides to simulate their fate in a sandy loam soil: effect of the temperature and the organic amendments
dc.creator.none.fl_str_mv Marín Benito, Jesús María
Carpio, M. José
Sánchez Martín, M. Jesús
Rodríguez Cruz, M. Sonia
author Marín Benito, Jesús María
author_facet Marín Benito, Jesús María
Carpio, M. José
Sánchez Martín, M. Jesús
Rodríguez Cruz, M. Sonia
author_role author
author2 Carpio, M. José
Sánchez Martín, M. Jesús
Rodríguez Cruz, M. Sonia
author2_role author
author
author
dc.contributor.none.fl_str_mv Ministerio de Economía y Competitividad (España)
European Commission
Marín Benito, Jesús María [0000-0002-8801-7389]
Sánchez Martín, María Jesús [0000-0002-8304-1232]
Rodríguez Cruz, M. Sonia [0000-0001-6748-3391]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Degradation
Herbicides
Soil
Spent mushroom substrate
Green compost
Temperatures
topic Degradation
Herbicides
Soil
Spent mushroom substrate
Green compost
Temperatures
description 5 tablas, 3 figuras y 39 páginas.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/178585
url http://hdl.handle.net/10261/178585
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AGL2015-69485-R
https://doi.org/10.1016/j.scitotenv.2018.11.015
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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