Factors affecting phosphorus sorption in loess soils of the semiarid Argentina

Autores
Hevia, Graciela Gloria; Hepper, Estela Noemí; Buschiazzo, Daniel Eduardo; Peinemann, Norman
Año de publicación
2000
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Previous results showed that phosphorus sorption strongly correlated with contents of active Al and Fe oxides and organic matter (OM) in soils of the-Semiarid Argentinean Pampas. Objective of this study was to determine the relative influence of these soil compounds on P sorption. It was hypothesized that contents of OM and Al and Fe oxides should decrease P sorption in the studied soils. With this purpose, sorption isotherms were carried out on non treated soils and on soils samples pre-treated with H2O2 (OM destruction), acid oxalate (AcOx, destruction of amorphous oxides) and boiled acid oxalate (BAcOx, destruction of crystalline oxides). Results showed that OM destruction did not affect none of the constants deduced from Freundlich isotherm (a, l/b and BCO.3). This was probably due to the variable effect of OM on these constants in each soil. On the other hand, constant a decreased 20 to 88% after elimination of crystalline oxides, and 17 to 48% after elimination of amorphous oxides, BCO.3 decreased 33 to 87% after elimination of crystalline oxides, and 21 to 44% after elimination of amorphous oxides, and 1/b remained unchanged. Such results indicate that P sorption (a), as well as the ability of the soil to liberate P to the soil solution (BCO.3), were highly influenced by the amount of amorphous and crystalline Al and Fe oxides and that the retention energy of P (1/b) remained unchanged.
Fil: Hevia, Graciela Gloria. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Hepper, Estela Noemí. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Buschiazzo, Daniel Eduardo. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Peinemann, Norman. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
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CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
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oai:ri.conicet.gov.ar:11336/76280
Acceder
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spelling Factors affecting phosphorus sorption in loess soils of the semiarid ArgentinaHevia, Graciela GloriaHepper, Estela NoemíBuschiazzo, Daniel EduardoPeinemann, Normanhttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4Previous results showed that phosphorus sorption strongly correlated with contents of active Al and Fe oxides and organic matter (OM) in soils of the-Semiarid Argentinean Pampas. Objective of this study was to determine the relative influence of these soil compounds on P sorption. It was hypothesized that contents of OM and Al and Fe oxides should decrease P sorption in the studied soils. With this purpose, sorption isotherms were carried out on non treated soils and on soils samples pre-treated with H2O2 (OM destruction), acid oxalate (AcOx, destruction of amorphous oxides) and boiled acid oxalate (BAcOx, destruction of crystalline oxides). Results showed that OM destruction did not affect none of the constants deduced from Freundlich isotherm (a, l/b and BCO.3). This was probably due to the variable effect of OM on these constants in each soil. On the other hand, constant a decreased 20 to 88% after elimination of crystalline oxides, and 17 to 48% after elimination of amorphous oxides, BCO.3 decreased 33 to 87% after elimination of crystalline oxides, and 21 to 44% after elimination of amorphous oxides, and 1/b remained unchanged. Such results indicate that P sorption (a), as well as the ability of the soil to liberate P to the soil solution (BCO.3), were highly influenced by the amount of amorphous and crystalline Al and Fe oxides and that the retention energy of P (1/b) remained unchanged.Fil: Hevia, Graciela Gloria. Universidad Nacional de La Pampa. Facultad de Agronomía; ArgentinaFil: Hepper, Estela Noemí. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Buschiazzo, Daniel Eduardo. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Peinemann, Norman. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; ArgentinaPisa University Press2000-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76280Hevia, Graciela Gloria; Hepper, Estela Noemí; Buschiazzo, Daniel Eduardo; Peinemann, Norman; Factors affecting phosphorus sorption in loess soils of the semiarid Argentina; Pisa University Press; Agrochimica (pisa); XLIV; 3-4; 8-2000; 81-880002-1857CONICET DigitalCONICETenginfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:23:13Zoai:ri.conicet.gov.ar:11336/76280instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:23:14.198CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
title Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
spellingShingle Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
Hevia, Graciela Gloria
title_short Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
title_full Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
title_fullStr Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
title_full_unstemmed Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
title_sort Factors affecting phosphorus sorption in loess soils of the semiarid Argentina
dc.creator.none.fl_str_mv Hevia, Graciela Gloria
Hepper, Estela Noemí
Buschiazzo, Daniel Eduardo
Peinemann, Norman
author Hevia, Graciela Gloria
author_facet Hevia, Graciela Gloria
Hepper, Estela Noemí
Buschiazzo, Daniel Eduardo
Peinemann, Norman
author_role author
author2 Hepper, Estela Noemí
Buschiazzo, Daniel Eduardo
Peinemann, Norman
author2_role author
author
author
purl_subject.fl_str_mv https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
dc.description.none.fl_txt_mv Previous results showed that phosphorus sorption strongly correlated with contents of active Al and Fe oxides and organic matter (OM) in soils of the-Semiarid Argentinean Pampas. Objective of this study was to determine the relative influence of these soil compounds on P sorption. It was hypothesized that contents of OM and Al and Fe oxides should decrease P sorption in the studied soils. With this purpose, sorption isotherms were carried out on non treated soils and on soils samples pre-treated with H2O2 (OM destruction), acid oxalate (AcOx, destruction of amorphous oxides) and boiled acid oxalate (BAcOx, destruction of crystalline oxides). Results showed that OM destruction did not affect none of the constants deduced from Freundlich isotherm (a, l/b and BCO.3). This was probably due to the variable effect of OM on these constants in each soil. On the other hand, constant a decreased 20 to 88% after elimination of crystalline oxides, and 17 to 48% after elimination of amorphous oxides, BCO.3 decreased 33 to 87% after elimination of crystalline oxides, and 21 to 44% after elimination of amorphous oxides, and 1/b remained unchanged. Such results indicate that P sorption (a), as well as the ability of the soil to liberate P to the soil solution (BCO.3), were highly influenced by the amount of amorphous and crystalline Al and Fe oxides and that the retention energy of P (1/b) remained unchanged.
Fil: Hevia, Graciela Gloria. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina
Fil: Hepper, Estela Noemí. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Buschiazzo, Daniel Eduardo. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Peinemann, Norman. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Ciencias de la Tierra y Ambientales de La Pampa. Universidad Nacional de La Pampa. Facultad de Ciencias Exactas y Naturales. Instituto de Ciencias de la Tierra y Ambientales de La Pampa; Argentina
description Previous results showed that phosphorus sorption strongly correlated with contents of active Al and Fe oxides and organic matter (OM) in soils of the-Semiarid Argentinean Pampas. Objective of this study was to determine the relative influence of these soil compounds on P sorption. It was hypothesized that contents of OM and Al and Fe oxides should decrease P sorption in the studied soils. With this purpose, sorption isotherms were carried out on non treated soils and on soils samples pre-treated with H2O2 (OM destruction), acid oxalate (AcOx, destruction of amorphous oxides) and boiled acid oxalate (BAcOx, destruction of crystalline oxides). Results showed that OM destruction did not affect none of the constants deduced from Freundlich isotherm (a, l/b and BCO.3). This was probably due to the variable effect of OM on these constants in each soil. On the other hand, constant a decreased 20 to 88% after elimination of crystalline oxides, and 17 to 48% after elimination of amorphous oxides, BCO.3 decreased 33 to 87% after elimination of crystalline oxides, and 21 to 44% after elimination of amorphous oxides, and 1/b remained unchanged. Such results indicate that P sorption (a), as well as the ability of the soil to liberate P to the soil solution (BCO.3), were highly influenced by the amount of amorphous and crystalline Al and Fe oxides and that the retention energy of P (1/b) remained unchanged.
publishDate 2000
dc.date.none.fl_str_mv 2000-08
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/11336/76280
Hevia, Graciela Gloria; Hepper, Estela Noemí; Buschiazzo, Daniel Eduardo; Peinemann, Norman; Factors affecting phosphorus sorption in loess soils of the semiarid Argentina; Pisa University Press; Agrochimica (pisa); XLIV; 3-4; 8-2000; 81-88
0002-1857
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76280
identifier_str_mv Hevia, Graciela Gloria; Hepper, Estela Noemí; Buschiazzo, Daniel Eduardo; Peinemann, Norman; Factors affecting phosphorus sorption in loess soils of the semiarid Argentina; Pisa University Press; Agrochimica (pisa); XLIV; 3-4; 8-2000; 81-88
0002-1857
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Pisa University Press
publisher.none.fl_str_mv Pisa University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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