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dc.contributor.authorAragüés Lafarga, Ramónes_ES
dc.contributor.authorMedina Pueyo, Eva Teresaes_ES
dc.contributor.authorMartínez Cob, Antonioes_ES
dc.contributor.authorFaci González, José Maríaes_ES
dc.date.accessioned2014-10-20T08:42:53Z
dc.date.available2014-10-20T08:42:53Z
dc.date.issued2014es_ES
dc.identifier.citationAgricultural Water Management, 142, p. 1-9en
dc.identifier.issn0378-3774*
dc.identifier.urihttp://hdl.handle.net/10532/2684
dc.description.abstractDeficit 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.en
dc.language.isoenes_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/es/*
dc.subject.othersuelos y riegoses_ES
dc.titleEffects of deficit irrigation strategies on soil salinization and sodification in a semiarid drip-irrigated peach orcharden
dc.typeJournal Contribution*
dc.description.versionPeer Reviewed-
dc.bibliographicCitation.volume142es_ES
dc.bibliographicCitation.stpage1es_ES
dc.bibliographicCitation.endpage9es_ES
dc.subject.agrovocRiego por goteoes
dc.subject.agrovocEscasez de aguaes
dc.subject.agrovocSalinidades
dc.description.statusPublishedes_ES
dc.type.refereedNon-Refereedes_ES
dc.type.specifiedArticlees_ES
dc.bibliographicCitation.titleAgricultural Water Managementen
dc.relation.doihttp://dx.doi.org/10.1016/j.agwat.2014.04.004es_ES
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