Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil

Autores
De Geronimo, Eduardo; Aparicio, Virginia Carolina
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Glyphosate is the most widely used herbicide in Argentina. The strong sorption of glyphosate to the mineral fraction of the soil can be affected by environmental conditions and agricultural management, such as the application of fertilisers. This work aimed to study the effect of pH and the presence of inorganic phosphate on the affinity of glyphosate for nine different surface soils of Argentina. The effect of pH on glyphosate sorption was investigated by batch experiments with pH adjusted between 3 and 12. The greatest glyphosate adsorption occurred at a certain pH value and then adsorption decreased with increasing or decreasing pH. The effects of pH on adsorption could be described by a model that includes changes in electrical potential. The effect of inorganic phosphate on glyphosate adsorption was studied by batch experiments in the presence of 0.5 or 1 mM phosphate. The results showed a significant competition between phosphate and glyphosate in all soils. The Freundlich glyphosate coefficients decreased by 40%–65% with phosphate in solution, and the amount of glyphosate adsorbed decreased between 1% and 5%, depending on the particular characteristics of the soil. For the glyphosate-phosphate competition, the competition terms were not reciprocal with each other because the competition between ions for adsorption sites also involves electrical effects.
EEA Balcarce
Fil: De Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.
Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.
Fuente
European Journal of Soil Science 73 (1) : e13188 (2022)
Materia
Suelo
Potencial Eléctrico
Glifosato
Fosfatos
Coeficiente de Absorción
pH del Suelo
Soil
Eletric Potential
Glyphosate
Phosphates
Absorption Coefficient
Soil pH
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/13453
Acceder
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oai_identifier_str oai:localhost:20.500.12123/13453
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network_name_str INTA Digital (INTA)
spelling Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soilDe Geronimo, EduardoAparicio, Virginia CarolinaSueloPotencial EléctricoGlifosatoFosfatosCoeficiente de AbsorciónpH del SueloSoilEletric PotentialGlyphosatePhosphatesAbsorption CoefficientSoil pHGlyphosate is the most widely used herbicide in Argentina. The strong sorption of glyphosate to the mineral fraction of the soil can be affected by environmental conditions and agricultural management, such as the application of fertilisers. This work aimed to study the effect of pH and the presence of inorganic phosphate on the affinity of glyphosate for nine different surface soils of Argentina. The effect of pH on glyphosate sorption was investigated by batch experiments with pH adjusted between 3 and 12. The greatest glyphosate adsorption occurred at a certain pH value and then adsorption decreased with increasing or decreasing pH. The effects of pH on adsorption could be described by a model that includes changes in electrical potential. The effect of inorganic phosphate on glyphosate adsorption was studied by batch experiments in the presence of 0.5 or 1 mM phosphate. The results showed a significant competition between phosphate and glyphosate in all soils. The Freundlich glyphosate coefficients decreased by 40%–65% with phosphate in solution, and the amount of glyphosate adsorbed decreased between 1% and 5%, depending on the particular characteristics of the soil. For the glyphosate-phosphate competition, the competition terms were not reciprocal with each other because the competition between ions for adsorption sites also involves electrical effects.EEA BalcarceFil: De Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.Wiley2022-11-28T10:20:22Z2022-11-28T10:20:22Z2022-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/13453https://bsssjournals.onlinelibrary.wiley.com/doi/abs/10.1111/ejss.131881365-2389https://doi.org/10.1111/ejss.13188European Journal of Soil Science 73 (1) : e13188 (2022)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repograntAgreement/INTA/PNSUELO-1134044/AR./Destino ambiental y degradación de los pesticidas agregados al suelo.info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)2025-09-29T13:45:48Zoai:localhost:20.500.12123/13453instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-29 13:45:48.619INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
title Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
spellingShingle Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
De Geronimo, Eduardo
Suelo
Potencial Eléctrico
Glifosato
Fosfatos
Coeficiente de Absorción
pH del Suelo
Soil
Eletric Potential
Glyphosate
Phosphates
Absorption Coefficient
Soil pH
title_short Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
title_full Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
title_fullStr Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
title_full_unstemmed Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
title_sort Changes in soil pH and addition of inorganic phosphate affect glyphosate adsorption in agricultural soil
dc.creator.none.fl_str_mv De Geronimo, Eduardo
Aparicio, Virginia Carolina
author De Geronimo, Eduardo
author_facet De Geronimo, Eduardo
Aparicio, Virginia Carolina
author_role author
author2 Aparicio, Virginia Carolina
author2_role author
dc.subject.none.fl_str_mv Suelo
Potencial Eléctrico
Glifosato
Fosfatos
Coeficiente de Absorción
pH del Suelo
Soil
Eletric Potential
Glyphosate
Phosphates
Absorption Coefficient
Soil pH
topic Suelo
Potencial Eléctrico
Glifosato
Fosfatos
Coeficiente de Absorción
pH del Suelo
Soil
Eletric Potential
Glyphosate
Phosphates
Absorption Coefficient
Soil pH
dc.description.none.fl_txt_mv Glyphosate is the most widely used herbicide in Argentina. The strong sorption of glyphosate to the mineral fraction of the soil can be affected by environmental conditions and agricultural management, such as the application of fertilisers. This work aimed to study the effect of pH and the presence of inorganic phosphate on the affinity of glyphosate for nine different surface soils of Argentina. The effect of pH on glyphosate sorption was investigated by batch experiments with pH adjusted between 3 and 12. The greatest glyphosate adsorption occurred at a certain pH value and then adsorption decreased with increasing or decreasing pH. The effects of pH on adsorption could be described by a model that includes changes in electrical potential. The effect of inorganic phosphate on glyphosate adsorption was studied by batch experiments in the presence of 0.5 or 1 mM phosphate. The results showed a significant competition between phosphate and glyphosate in all soils. The Freundlich glyphosate coefficients decreased by 40%–65% with phosphate in solution, and the amount of glyphosate adsorbed decreased between 1% and 5%, depending on the particular characteristics of the soil. For the glyphosate-phosphate competition, the competition terms were not reciprocal with each other because the competition between ions for adsorption sites also involves electrical effects.
EEA Balcarce
Fil: De Gerónimo, Eduardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.
Fil: Aparicio, Virginia Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina.
description Glyphosate is the most widely used herbicide in Argentina. The strong sorption of glyphosate to the mineral fraction of the soil can be affected by environmental conditions and agricultural management, such as the application of fertilisers. This work aimed to study the effect of pH and the presence of inorganic phosphate on the affinity of glyphosate for nine different surface soils of Argentina. The effect of pH on glyphosate sorption was investigated by batch experiments with pH adjusted between 3 and 12. The greatest glyphosate adsorption occurred at a certain pH value and then adsorption decreased with increasing or decreasing pH. The effects of pH on adsorption could be described by a model that includes changes in electrical potential. The effect of inorganic phosphate on glyphosate adsorption was studied by batch experiments in the presence of 0.5 or 1 mM phosphate. The results showed a significant competition between phosphate and glyphosate in all soils. The Freundlich glyphosate coefficients decreased by 40%–65% with phosphate in solution, and the amount of glyphosate adsorbed decreased between 1% and 5%, depending on the particular characteristics of the soil. For the glyphosate-phosphate competition, the competition terms were not reciprocal with each other because the competition between ions for adsorption sites also involves electrical effects.
publishDate 2022
dc.date.none.fl_str_mv 2022-11-28T10:20:22Z
2022-11-28T10:20:22Z
2022-02
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/20.500.12123/13453
https://bsssjournals.onlinelibrary.wiley.com/doi/abs/10.1111/ejss.13188
1365-2389
https://doi.org/10.1111/ejss.13188
url http://hdl.handle.net/20.500.12123/13453
https://bsssjournals.onlinelibrary.wiley.com/doi/abs/10.1111/ejss.13188
https://doi.org/10.1111/ejss.13188
identifier_str_mv 1365-2389
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repograntAgreement/INTA/PNSUELO-1134044/AR./Destino ambiental y degradación de los pesticidas agregados al suelo.
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv European Journal of Soil Science 73 (1) : e13188 (2022)
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 12.558318

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