Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems

Autores
Porfiri, Carolina; Montoya, Jorgelina Ceferina; Koskinen, William C.; Azcarate, Mariela Pamela
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The objective of this work was to study the sorption and transport of imazapyr (IMZ) in two soils with different physical–chemical properties, subject to long-term conventional tillage (CT) and no-tillage (NT) systems. Sorption was carried out using batch equilibrium method and high performance liquid chromatography analytical routines. Displacement experiments through intact soil cores were done using IMZ as reactive solute and bromide (Br) as non-reactive solute. Equilibrium (CDEeq) and non-equilibrium (CDEnon-eq) transport models (CXTFIT 2.1) were employed to describe the breakthrough curves (BTCs). IMZ was only sorbed by NT soils with Kd values ranging from 0.22 to 1.1 L kg−1 . Clay content, pH and CEC values were the main factors affecting the sorption of IMZ. Miscible displacement studies showed that almost all the soil water was mobile and transport was related to physical equilibrium conditions. Some evidence of sorption non-equilibrium was seen in column experiments with IMZ; retardation factors were close to one, demonstrating the low sorption and the high potential to leach of this compound.
Fil: Porfiri, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
Fil: Montoya, Jorgelina Ceferina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
Fil: Koskinen, William C. Department of Agriculture. Agricultural Research Service. Soil and Water Management Research Unit; Estados Unidos
Fil: Azcarate, Mariela Pamela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
Fuente
Geoderma 251–252 : 1-9. (August 2015)
Materia
Sorción
Imazapir
Lixiviación
Propiedades Físico-Químicas Suelo
Labranza Convencional
Conventional Tillage
Soil Chemicophysical Properties
Soil Properties
Leaching
Imazapyr
Sorption
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/2108
Acceder
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oai_identifier_str oai:localhost:20.500.12123/2108
network_acronym_str INTADig
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network_name_str INTA Digital (INTA)
spelling Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systemsPorfiri, CarolinaMontoya, Jorgelina CeferinaKoskinen, William C.Azcarate, Mariela PamelaSorciónImazapirLixiviaciónPropiedades Físico-Químicas SueloLabranza ConvencionalConventional TillageSoil Chemicophysical PropertiesSoil PropertiesLeachingImazapyrSorptionThe objective of this work was to study the sorption and transport of imazapyr (IMZ) in two soils with different physical–chemical properties, subject to long-term conventional tillage (CT) and no-tillage (NT) systems. Sorption was carried out using batch equilibrium method and high performance liquid chromatography analytical routines. Displacement experiments through intact soil cores were done using IMZ as reactive solute and bromide (Br) as non-reactive solute. Equilibrium (CDEeq) and non-equilibrium (CDEnon-eq) transport models (CXTFIT 2.1) were employed to describe the breakthrough curves (BTCs). IMZ was only sorbed by NT soils with Kd values ranging from 0.22 to 1.1 L kg−1 . Clay content, pH and CEC values were the main factors affecting the sorption of IMZ. Miscible displacement studies showed that almost all the soil water was mobile and transport was related to physical equilibrium conditions. Some evidence of sorption non-equilibrium was seen in column experiments with IMZ; retardation factors were close to one, demonstrating the low sorption and the high potential to leach of this compound.Fil: Porfiri, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; ArgentinaFil: Montoya, Jorgelina Ceferina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; ArgentinaFil: Koskinen, William C. Department of Agriculture. Agricultural Research Service. Soil and Water Management Research Unit; Estados UnidosFil: Azcarate, Mariela Pamela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina2018-03-23T15:44:02Z2018-03-23T15:44:02Z2015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/2108https://doi.org/10.1016/j.geoderma.2015.03.0160016-7061Geoderma 251–252 : 1-9. (August 2015)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/PNNAT/1128041/AR.Anguil, La Pampa/Gestion de sistemas agropecuarios y agroindustriales para reducir la contaminación.info:eu-repograntAgreement/INTA/PNNAT/1128043/AR./Los agroquímicos como fuente de contaminación difusa en agroecosistemas.info:eu-repo/semantics/restrictedAccess2025-09-11T10:22:20Zoai:localhost:20.500.12123/2108instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-11 10:22:20.708INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
title Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
spellingShingle Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
Porfiri, Carolina
Sorción
Imazapir
Lixiviación
Propiedades Físico-Químicas Suelo
Labranza Convencional
Conventional Tillage
Soil Chemicophysical Properties
Soil Properties
Leaching
Imazapyr
Sorption
title_short Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
title_full Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
title_fullStr Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
title_full_unstemmed Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
title_sort Adsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systems
dc.creator.none.fl_str_mv Porfiri, Carolina
Montoya, Jorgelina Ceferina
Koskinen, William C.
Azcarate, Mariela Pamela
author Porfiri, Carolina
author_facet Porfiri, Carolina
Montoya, Jorgelina Ceferina
Koskinen, William C.
Azcarate, Mariela Pamela
author_role author
author2 Montoya, Jorgelina Ceferina
Koskinen, William C.
Azcarate, Mariela Pamela
author2_role author
author
author
dc.subject.none.fl_str_mv Sorción
Imazapir
Lixiviación
Propiedades Físico-Químicas Suelo
Labranza Convencional
Conventional Tillage
Soil Chemicophysical Properties
Soil Properties
Leaching
Imazapyr
Sorption
topic Sorción
Imazapir
Lixiviación
Propiedades Físico-Químicas Suelo
Labranza Convencional
Conventional Tillage
Soil Chemicophysical Properties
Soil Properties
Leaching
Imazapyr
Sorption
dc.description.none.fl_txt_mv The objective of this work was to study the sorption and transport of imazapyr (IMZ) in two soils with different physical–chemical properties, subject to long-term conventional tillage (CT) and no-tillage (NT) systems. Sorption was carried out using batch equilibrium method and high performance liquid chromatography analytical routines. Displacement experiments through intact soil cores were done using IMZ as reactive solute and bromide (Br) as non-reactive solute. Equilibrium (CDEeq) and non-equilibrium (CDEnon-eq) transport models (CXTFIT 2.1) were employed to describe the breakthrough curves (BTCs). IMZ was only sorbed by NT soils with Kd values ranging from 0.22 to 1.1 L kg−1 . Clay content, pH and CEC values were the main factors affecting the sorption of IMZ. Miscible displacement studies showed that almost all the soil water was mobile and transport was related to physical equilibrium conditions. Some evidence of sorption non-equilibrium was seen in column experiments with IMZ; retardation factors were close to one, demonstrating the low sorption and the high potential to leach of this compound.
Fil: Porfiri, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
Fil: Montoya, Jorgelina Ceferina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
Fil: Koskinen, William C. Department of Agriculture. Agricultural Research Service. Soil and Water Management Research Unit; Estados Unidos
Fil: Azcarate, Mariela Pamela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina
description The objective of this work was to study the sorption and transport of imazapyr (IMZ) in two soils with different physical–chemical properties, subject to long-term conventional tillage (CT) and no-tillage (NT) systems. Sorption was carried out using batch equilibrium method and high performance liquid chromatography analytical routines. Displacement experiments through intact soil cores were done using IMZ as reactive solute and bromide (Br) as non-reactive solute. Equilibrium (CDEeq) and non-equilibrium (CDEnon-eq) transport models (CXTFIT 2.1) were employed to describe the breakthrough curves (BTCs). IMZ was only sorbed by NT soils with Kd values ranging from 0.22 to 1.1 L kg−1 . Clay content, pH and CEC values were the main factors affecting the sorption of IMZ. Miscible displacement studies showed that almost all the soil water was mobile and transport was related to physical equilibrium conditions. Some evidence of sorption non-equilibrium was seen in column experiments with IMZ; retardation factors were close to one, demonstrating the low sorption and the high potential to leach of this compound.
publishDate 2015
dc.date.none.fl_str_mv 2015
2018-03-23T15:44:02Z
2018-03-23T15:44:02Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/2108
https://doi.org/10.1016/j.geoderma.2015.03.016
0016-7061
url http://hdl.handle.net/20.500.12123/2108
https://doi.org/10.1016/j.geoderma.2015.03.016
identifier_str_mv 0016-7061
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/PNNAT/1128041/AR.Anguil, La Pampa/Gestion de sistemas agropecuarios y agroindustriales para reducir la contaminación.
info:eu-repograntAgreement/INTA/PNNAT/1128043/AR./Los agroquímicos como fuente de contaminación difusa en agroecosistemas.
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Geoderma 251–252 : 1-9. (August 2015)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.993085

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