Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions

24 páginas, 8 tablas, 2 figuras. -- The original publication is avalaible at www.springerlink.com

Detalhes bibliográficos
Autores: Marín Benito, Jesús María, Andrades, M. Soledad, Rodríguez Cruz, M. Sonia, Sánchez Martín, M. Jesús
Formato: artículo
Fecha de publicación:2012
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/57564
Acesso em linha:http://hdl.handle.net/10261/57564
Access Level:acceso abierto
Palavra-chave:Desorption
Fungicides
Soil
Soil incubation
Sorption
Spent mushroom substrate
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spelling Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditionsMarín Benito, Jesús MaríaAndrades, M. SoledadRodríguez Cruz, M. SoniaSánchez Martín, M. JesúsDesorptionFungicidesSoilSoil incubationSorptionSpent mushroom substrate24 páginas, 8 tablas, 2 figuras. -- The original publication is avalaible at www.springerlink.comPurpose The aim of this work was to study the temporal changes in the sorption–desorption of fungicides in a sandy clay loam soil amended with spent mushroom substrate (SMS) under controlled laboratory conditions and the influence that fungicides properties and soil characteristics have on these processes. Soil amendment with SMS is becoming a widespread management practice since it can effectively solve the problems of uncontrolled SMS accumulation and disposal and improve soil quality. However, when simultaneously applied with pesticides, SMS can significantly modify the environmental behaviour of these compounds. Materials and methods Sorption–desorption isotherms of metalaxyl, penconazole, pyrimethanil and iprovalicarb for unamended and amended vineyard soils from La Rioja (Spain) were obtained. Composted SMS (C-SMS) and fresh SMS (F-SMS) from cultivation of different mushrooms were used as amendments at 2 % and 10 % rates. Soil parameters (organic carbon (OC), dissolved organic carbon (DOC), humic acid (HA) and fulvic acid (FA)) and sorption (Kf, nf, Kd, Koc) and desorption (Kfd, nfd, H) parameters of fungicides were determined over 0, 6 and 12 months of soil incubation with SMS under controlled conditions. Results and discussion Addition of mendments to soil increased soil sorption capacity of fungicides. Kd values increased with the hydrophobic character of fungicides (metalaxyl<iprovalicarb<pyrimethanil<penconazole) at both amendment rates. The lower content of DOC and the higher degree of OC humification enhanced sorption of all fungicides by the soil+C-SMS with regard to the soil+FSMS. In general, sorption of fungicides decreased after 6 and 12 months of soil+SMS incubation, although the humification degree of the remaining OC expressed by HA/FA increased. This might indicate that the OC content was more important for fungicide sorption than the changes in its nature with the incubation time. SMS addition favoured desorption of metalaxyl and iprovalicarb, in general, whereas irreversible sorption of penconazole and pyrimethanil increased. However, the opposite trends were observed when the soil+ SMS incubation time increased. Conclusions The results show an increase in sorption of all fungicides by amending soil with composted or fresh SMS. However, desorption of fungicides increases or decreases depending on the properties of fungicides and soil+ SMS. Changes in both processes with the incubation time are more related to the OC content of the amended soil than to the evolution of its nature. These outcomes are of interest for extending SMS application to soil with minimal or no environmental risk when used simultaneously with fungicides.Peer reviewedSpringer Nature2012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/57564reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1007/s11368-012-0525-xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/575642026-05-22T06:33:51Z
dc.title.none.fl_str_mv Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
title Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
spellingShingle Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
Marín Benito, Jesús María
Desorption
Fungicides
Soil
Soil incubation
Sorption
Spent mushroom substrate
title_short Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
title_full Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
title_fullStr Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
title_full_unstemmed Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
title_sort Changes in the sorption-desorption of fungicides over time in an amended sandy clay loam soil under laboratory conditions
dc.creator.none.fl_str_mv Marín Benito, Jesús María
Andrades, M. Soledad
Rodríguez Cruz, M. Sonia
Sánchez Martín, M. Jesús
author Marín Benito, Jesús María
author_facet Marín Benito, Jesús María
Andrades, M. Soledad
Rodríguez Cruz, M. Sonia
Sánchez Martín, M. Jesús
author_role author
author2 Andrades, M. Soledad
Rodríguez Cruz, M. Sonia
Sánchez Martín, M. Jesús
author2_role author
author
author
dc.subject.none.fl_str_mv Desorption
Fungicides
Soil
Soil incubation
Sorption
Spent mushroom substrate
topic Desorption
Fungicides
Soil
Soil incubation
Sorption
Spent mushroom substrate
description 24 páginas, 8 tablas, 2 figuras. -- The original publication is avalaible at www.springerlink.com
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/57564
url http://hdl.handle.net/10261/57564
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1007/s11368-012-0525-x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
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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score 15.81155

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