Sorption and desorption of indaziflam degradates in several agricultural soils

Detalhes bibliográficos
Autor(a) principal: Alonso,Diego Gonçalves
Data de Publicação: 2016
Outros Autores: Oliveira Jr,Rubem Silvério de, Koskinen,William Charles, Hall,Kathleen, Constantin,Jamil, Mislankar,Suresh
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000200169
Resumo: ABSTRACT Processes regulating pesticide fate in the environment are influenced by the physicochemical properties of pesticides and soils. Sorption and desorption are important processes as they regulate the movement of pesticides in soil. Although sorption-desorption is widely studied for herbicides, studies involving their metabolites in soil are scarce. Sorption and desorption of indaziflam metabolites (indaziflam-triazinediamine (FDAT), indaziflam-triazine-indanone (ITI) and indaziflam-carboxilic acid (ICA)) were investigated in six Brazilian (BRA) soils and three United States (USA) soils with different physicochemical properties. The Freundlich equation described sorption of the metabolites for all soils (R2 > 0.98; 1/n ~ 1). Sorption order (Kf) was ITI > ICA > FDAT. Mean values of Kf,oc were 453, 289, and 81 (BRA) and 444, 48, and 48 (USA) for metabolites ITI, ICA, and FDAT respectively. Desorption was hysteretic for all metabolites in all soils. These results suggest that these metabolites fall in the classification range of mobile to moderately mobile in soils.
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spelling Sorption and desorption of indaziflam degradates in several agricultural soilsadsorptionhysteresismetabolitessoil propertiesABSTRACT Processes regulating pesticide fate in the environment are influenced by the physicochemical properties of pesticides and soils. Sorption and desorption are important processes as they regulate the movement of pesticides in soil. Although sorption-desorption is widely studied for herbicides, studies involving their metabolites in soil are scarce. Sorption and desorption of indaziflam metabolites (indaziflam-triazinediamine (FDAT), indaziflam-triazine-indanone (ITI) and indaziflam-carboxilic acid (ICA)) were investigated in six Brazilian (BRA) soils and three United States (USA) soils with different physicochemical properties. The Freundlich equation described sorption of the metabolites for all soils (R2 > 0.98; 1/n ~ 1). Sorption order (Kf) was ITI > ICA > FDAT. Mean values of Kf,oc were 453, 289, and 81 (BRA) and 444, 48, and 48 (USA) for metabolites ITI, ICA, and FDAT respectively. Desorption was hysteretic for all metabolites in all soils. These results suggest that these metabolites fall in the classification range of mobile to moderately mobile in soils.Escola Superior de Agricultura "Luiz de Queiroz"2016-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000200169Scientia Agricola v.73 n.2 2016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0103-9016-2015-0106info:eu-repo/semantics/openAccessAlonso,Diego GonçalvesOliveira Jr,Rubem Silvério deKoskinen,William CharlesHall,KathleenConstantin,JamilMislankar,Suresheng2016-03-18T00:00:00Zoai:scielo:S0103-90162016000200169Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2016-03-18T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Sorption and desorption of indaziflam degradates in several agricultural soils
title Sorption and desorption of indaziflam degradates in several agricultural soils
spellingShingle Sorption and desorption of indaziflam degradates in several agricultural soils
Alonso,Diego Gonçalves
adsorption
hysteresis
metabolites
soil properties
title_short Sorption and desorption of indaziflam degradates in several agricultural soils
title_full Sorption and desorption of indaziflam degradates in several agricultural soils
title_fullStr Sorption and desorption of indaziflam degradates in several agricultural soils
title_full_unstemmed Sorption and desorption of indaziflam degradates in several agricultural soils
title_sort Sorption and desorption of indaziflam degradates in several agricultural soils
author Alonso,Diego Gonçalves
author_facet Alonso,Diego Gonçalves
Oliveira Jr,Rubem Silvério de
Koskinen,William Charles
Hall,Kathleen
Constantin,Jamil
Mislankar,Suresh
author_role author
author2 Oliveira Jr,Rubem Silvério de
Koskinen,William Charles
Hall,Kathleen
Constantin,Jamil
Mislankar,Suresh
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Alonso,Diego Gonçalves
Oliveira Jr,Rubem Silvério de
Koskinen,William Charles
Hall,Kathleen
Constantin,Jamil
Mislankar,Suresh
dc.subject.por.fl_str_mv adsorption
hysteresis
metabolites
soil properties
topic adsorption
hysteresis
metabolites
soil properties
description ABSTRACT Processes regulating pesticide fate in the environment are influenced by the physicochemical properties of pesticides and soils. Sorption and desorption are important processes as they regulate the movement of pesticides in soil. Although sorption-desorption is widely studied for herbicides, studies involving their metabolites in soil are scarce. Sorption and desorption of indaziflam metabolites (indaziflam-triazinediamine (FDAT), indaziflam-triazine-indanone (ITI) and indaziflam-carboxilic acid (ICA)) were investigated in six Brazilian (BRA) soils and three United States (USA) soils with different physicochemical properties. The Freundlich equation described sorption of the metabolites for all soils (R2 > 0.98; 1/n ~ 1). Sorption order (Kf) was ITI > ICA > FDAT. Mean values of Kf,oc were 453, 289, and 81 (BRA) and 444, 48, and 48 (USA) for metabolites ITI, ICA, and FDAT respectively. Desorption was hysteretic for all metabolites in all soils. These results suggest that these metabolites fall in the classification range of mobile to moderately mobile in soils.
publishDate 2016
dc.date.none.fl_str_mv 2016-04-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000200169
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162016000200169
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-9016-2015-0106
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
publisher.none.fl_str_mv Escola Superior de Agricultura "Luiz de Queiroz"
dc.source.none.fl_str_mv Scientia Agricola v.73 n.2 2016
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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