Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard

28 Pags., 4 Tabls., 6 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774

Detalhes bibliográficos
Autores: Aragüés Lafarga, Ramón, Medina Pueyo, Eva Teresa, Martínez-Cob, Antonio, Faci González, José María
Formato: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/97144
Acesso em linha:http://hdl.handle.net/10261/97144
Access Level:acceso abierto
Palavra-chave:Drip irrigation
Salinity
Sodicity
Leaching fraction
Water deficit
Leaf ions
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spelling Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchardAragüés Lafarga, RamónMedina Pueyo, Eva TeresaMartínez-Cob, AntonioFaci González, José MaríaDrip irrigationSalinitySodicityLeaching fractionWater deficitLeaf ions28 Pags., 4 Tabls., 6 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774Deficit irrigation strategies save water, but may enhance soil salinization and sodification when irrigated with low-quality waters. The objectives of this five-year study performed in the middle Ebro Basin (Spain) were to quantify these processes and assess their potential deleterious impact on the response of peach trees subjected to full irrigation (FULL), sustained deficit irrigation (SDI, irrigated at 62.5% of FULL) and regulated deficit irrigation (RDI, irrigated at 50% of FULL in Stage II of fruit development). In relation to FULL, water savings were 40% in SDI and 9% in RDI. Soil salinity (ECe), chloride concentration (Cle) and sodicity (SARe) measured in the saturation extract of 480 soil samples generally increased in the irrigation seasons, particularly in the more severe deficit irrigation strategy (SDI). These increases were counteracted by the leaching of salts induced by high leaching fractions (LF) and low water deficits (WD) attained during the non irrigation seasons. The changes in ECe, Cle and SARe measured between sampling dates were significantly correlated (p < 0.01) with WD and LF calculated for the periods between sampling dates. These parameters were therefore suitable to estimate the required irrigation depths for soil salinity and sodicity control. Peach trees were unaffected by the irrigation treatments, but yield productivity tended to decline above a threshold ECe of 4 dS m−1. Under the irrigation salinity (mean EC = 1.1 dS m−1) and the semiarid climatic characteristics of the study area, the three examined irrigation strategies proved to be sustainable in the five studied years.This work was financed by the CSD2006-00067 project (CONSOLIDER-INGENIO 2010).Peer reviewedElsevier201420142014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/97144reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.agwat.2014.04.004info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/971442026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
title Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
spellingShingle Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
Aragüés Lafarga, Ramón
Drip irrigation
Salinity
Sodicity
Leaching fraction
Water deficit
Leaf ions
title_short Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
title_full Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
title_fullStr Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
title_full_unstemmed Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
title_sort Effects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orchard
dc.creator.none.fl_str_mv Aragüés Lafarga, Ramón
Medina Pueyo, Eva Teresa
Martínez-Cob, Antonio
Faci González, José María
author Aragüés Lafarga, Ramón
author_facet Aragüés Lafarga, Ramón
Medina Pueyo, Eva Teresa
Martínez-Cob, Antonio
Faci González, José María
author_role author
author2 Medina Pueyo, Eva Teresa
Martínez-Cob, Antonio
Faci González, José María
author2_role author
author
author
dc.subject.none.fl_str_mv Drip irrigation
Salinity
Sodicity
Leaching fraction
Water deficit
Leaf ions
topic Drip irrigation
Salinity
Sodicity
Leaching fraction
Water deficit
Leaf ions
description 28 Pags., 4 Tabls., 6 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/03783774
publishDate 2014
dc.date.none.fl_str_mv 2014
2014
2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/97144
url http://hdl.handle.net/10261/97144
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.agwat.2014.04.004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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