Effect of conventional and no-till practices on solute transport in long term field trials

The prediction and description of water and solute movement in soils under different tillage systems is essential to the study of pesticide contamination in soils and groundwater quality. However, the impact of tillage practices in soil physical characteristics varies across locations and types of s...

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Autores: Okada, Elena, Costa, Jose Luis, Bedmar, Francisco, Barbagelata, Pedro, Irizar, Alicia, Rampoldi, Edgar Ariel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/34597
Acceso en línea:http://hdl.handle.net/11336/34597
Access Level:acceso abierto
Palabra clave:Tillage
Solute Transport
Soil Culture
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
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oai_identifier_str oai:ri.conicet.gov.ar:11336/34597
network_acronym_str AR
network_name_str Argentina
repository_id_str
dc.title.none.fl_str_mv Effect of conventional and no-till practices on solute transport in long term field trials
title Effect of conventional and no-till practices on solute transport in long term field trials
spellingShingle Effect of conventional and no-till practices on solute transport in long term field trials
Okada, Elena
Tillage
Solute Transport
Soil Culture
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
title_short Effect of conventional and no-till practices on solute transport in long term field trials
title_full Effect of conventional and no-till practices on solute transport in long term field trials
title_fullStr Effect of conventional and no-till practices on solute transport in long term field trials
title_full_unstemmed Effect of conventional and no-till practices on solute transport in long term field trials
title_sort Effect of conventional and no-till practices on solute transport in long term field trials
dc.creator.none.fl_str_mv Okada, Elena
Costa, Jose Luis
Bedmar, Francisco
Barbagelata, Pedro
Irizar, Alicia
Rampoldi, Edgar Ariel
author Okada, Elena
author_facet Okada, Elena
Costa, Jose Luis
Bedmar, Francisco
Barbagelata, Pedro
Irizar, Alicia
Rampoldi, Edgar Ariel
author_role author
author2 Costa, Jose Luis
Bedmar, Francisco
Barbagelata, Pedro
Irizar, Alicia
Rampoldi, Edgar Ariel
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Tillage
Solute Transport
Soil Culture
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
topic Tillage
Solute Transport
Soil Culture
https://purl.org/becyt/ford/4.1
https://purl.org/becyt/ford/4
description The prediction and description of water and solute movement in soils under different tillage systems is essential to the study of pesticide contamination in soils and groundwater quality. However, the impact of tillage practices in soil physical characteristics varies across locations and types of soil. In this work we analyzed the long-term impact of no till (NT) and conventional tillage (CT) on solute transport within three different Argentinian soils. Bromide transport studies were conducted under controlled conditions in the laboratory using undisturbed soil columns. Samples were taken from long term field trials, with a history of over 16 years of NT and CT practices. The studied soils were: Paraná soil (PAR), a silty clay loam soil (<37% clay), and Mandfredi (MAN) and Pergamino (PER), both silty loam soils (<26% clay). Breakthrough curves were fitted using the non-equilibrium equation model (CDEneq). The following transport parameters were estimated from the fitted curves: velocity (v), hydrodynamic dispersion coefficient (D), dispersivity (λ), mobile water content (β), and mass transfer coefficient (ω). The relationship between the estimated parameters and soil properties was analyzed. Also, the parameters were compared between soils and tillage practices using a mixed linear model. Parameters v and D were positively correlated to soil clay content in NT samples. Such correlation was not observed in CT samples. This would suggest that clay content in soils under conservational tillage, favors the transport of solutes, as it increases v and D. In this study, no differences were found between soils or tillage practice regarding the estimated v parameter. Differences were found for D and λ between CT and NT samples in PAR soil. In this case, the magnitude of solute dispersion was higher in the NT samples. For the other soils (MAN and PER), no difference in D and λ between tillage practices was found. Effects of tillage on solute transport was not substantial in these soils, even when no till management had been applied for over 30 years. Whereas in PAR (the soil with higher clay content), soil management had an important effect on structure, and therefore on solute and water transport. These results suggest that in the PAR clayey soils studied, structure is well preserved under conservational tillage, and this could lead to an increase in the risk of leaching of solutes or chemical substances.
publishDate 2014
dc.date.none.fl_str_mv 2014-05
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/11336/34597
Okada, Elena; Costa, Jose Luis; Bedmar, Francisco; Barbagelata, Pedro; Irizar, Alicia; et al.; Effect of conventional and no-till practices on solute transport in long term field trials; Elsevier Science; Soil & Tillage Research; 142; 5-2014; 8-14
0167-1987
CONICET Digital
CONICET
url http://hdl.handle.net/11336/34597
identifier_str_mv Okada, Elena; Costa, Jose Luis; Bedmar, Francisco; Barbagelata, Pedro; Irizar, Alicia; et al.; Effect of conventional and no-till practices on solute transport in long term field trials; Elsevier Science; Soil & Tillage Research; 142; 5-2014; 8-14
0167-1987
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.still.2014.04.002
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0167198714000609
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 Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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
_version_ 1799195455162155008
spelling Effect of conventional and no-till practices on solute transport in long term field trialsOkada, ElenaCosta, Jose LuisBedmar, FranciscoBarbagelata, PedroIrizar, AliciaRampoldi, Edgar ArielTillageSolute TransportSoil Culturehttps://purl.org/becyt/ford/4.1https://purl.org/becyt/ford/4The prediction and description of water and solute movement in soils under different tillage systems is essential to the study of pesticide contamination in soils and groundwater quality. However, the impact of tillage practices in soil physical characteristics varies across locations and types of soil. In this work we analyzed the long-term impact of no till (NT) and conventional tillage (CT) on solute transport within three different Argentinian soils. Bromide transport studies were conducted under controlled conditions in the laboratory using undisturbed soil columns. Samples were taken from long term field trials, with a history of over 16 years of NT and CT practices. The studied soils were: Paraná soil (PAR), a silty clay loam soil (<37% clay), and Mandfredi (MAN) and Pergamino (PER), both silty loam soils (<26% clay). Breakthrough curves were fitted using the non-equilibrium equation model (CDEneq). The following transport parameters were estimated from the fitted curves: velocity (v), hydrodynamic dispersion coefficient (D), dispersivity (λ), mobile water content (β), and mass transfer coefficient (ω). The relationship between the estimated parameters and soil properties was analyzed. Also, the parameters were compared between soils and tillage practices using a mixed linear model. Parameters v and D were positively correlated to soil clay content in NT samples. Such correlation was not observed in CT samples. This would suggest that clay content in soils under conservational tillage, favors the transport of solutes, as it increases v and D. In this study, no differences were found between soils or tillage practice regarding the estimated v parameter. Differences were found for D and λ between CT and NT samples in PAR soil. In this case, the magnitude of solute dispersion was higher in the NT samples. For the other soils (MAN and PER), no difference in D and λ between tillage practices was found. Effects of tillage on solute transport was not substantial in these soils, even when no till management had been applied for over 30 years. Whereas in PAR (the soil with higher clay content), soil management had an important effect on structure, and therefore on solute and water transport. These results suggest that in the PAR clayey soils studied, structure is well preserved under conservational tillage, and this could lead to an increase in the risk of leaching of solutes or chemical substances.Fil: Okada, Elena. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Costa, Jose Luis. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Sur. Estación Experimental Agropecuaria Balcarce; ArgentinaFil: Bedmar, Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Mar del Plata. Facultad de Ciencias Agrarias; ArgentinaFil: Barbagelata, Pedro. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Entre Ríos. Estación Experimental Agropecuaria Paraná; Argentina. Universidad Nacional de Entre Ríos. Facultad de Ciencias Agropecuarias; ArgentinaFil: Irizar, Alicia. Instituto Nacional de Tecnología Agropecuaria. Centro Regional Buenos Aires Norte. Estación Experimental Agropecuaria Pergamino; ArgentinaFil: Rampoldi, Edgar Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Instituto Nacional de Tecnología Agropecuaria; Argentina. Universidad Nacional de Córdoba; ArgentinaElsevier Science2014-05info: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/11336/34597Okada, Elena; Costa, Jose Luis; Bedmar, Francisco; Barbagelata, Pedro; Irizar, Alicia; et al.; Effect of conventional and no-till practices on solute transport in long term field trials; Elsevier Science; Soil & Tillage Research; 142; 5-2014; 8-140167-1987CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.still.2014.04.002info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0167198714000609info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:53:04Zoai:ri.conicet.gov.ar:11336/34597instacron: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:34982024-05-08 13:53:04.916CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
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