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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 [ver mas...]
dc.contributor.authorPorfiri, Carolina
dc.contributor.authorMontoya, Jorgelina Ceferina
dc.contributor.authorKoskinen, William C.
dc.contributor.authorAzcarate, Mariela Pamela
dc.date.accessioned2018-03-23T15:44:02Z
dc.date.available2018-03-23T15:44:02Z
dc.date.issued2015
dc.identifier.issn0016-7061
dc.identifier.urihttp://hdl.handle.net/20.500.12123/2108
dc.identifier.urihttps://doi.org/10.1016/j.geoderma.2015.03.016
dc.description.abstractThe 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.eng
dc.formatapplication/pdfeng
dc.language.isoeng
dc.relationinfo:eu-repograntAgreement/INTA/PNNAT/1128041/AR.Anguil, La Pampa/Gestion de sistemas agropecuarios y agroindustriales para reducir la contaminación.eng
dc.relationinfo:eu-repograntAgreement/INTA/PNNAT/1128043/AR./Los agroquímicos como fuente de contaminación difusa en agroecosistemas.
dc.rightsinfo:eu-repo/semantics/restrictedAccesseng
dc.sourceGeoderma 251–252 : 1-9. (August 2015)eng
dc.subjectSorciónes_AR
dc.subjectImazapires_AR
dc.subjectLixiviaciónes_AR
dc.subjectPropiedades Físico-Químicas Sueloes_AR
dc.subjectLabranza Convencionales_AR
dc.subjectConventional Tillageeng
dc.subjectSoil Chemicophysical Propertieseng
dc.subjectSoil Propertieseng
dc.subjectLeachingeng
dc.subjectImazapyreng
dc.subjectSorptioneng
dc.titleAdsorption and transport of imazapyr through intact soil columns taken from two soils under two tillage systemseng
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articleeng
dc.typeinfo:eu-repo/semantics/publishedVersioneng
dc.description.filFil: Porfiri, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentinaes_AR
dc.description.filFil: Montoya, Jorgelina Ceferina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentinaes_AR
dc.description.filFil: Koskinen, William C. Department of Agriculture. Agricultural Research Service. Soil and Water Management Research Unit; Estados Unidoses_AR
dc.description.filFil: Azcarate, Mariela Pamela. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentinaes_AR
dc.subtypecientifico


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