Evaluation of potential irrigation water savings by assessing the soil water balance in a vineyard in central Chile

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dc.citation.volumeEarly View
dc.contributor.authorSalazar O
dc.contributor.authorCastro M
dc.contributor.authorSingh R
dc.contributor.authorPonstein H
dc.date.accessioned2024-12-12T02:11:47Z
dc.date.available2024-12-12T02:11:47Z
dc.date.issued2024-05-26
dc.description.abstractThe main aim of this study was to evaluate the potential savings of irrigation water by assessing the soil water balance during the growing season in a wine vineyard in the Maule region, Chile. This study provides insights into the influences of different irrigation water applications on soil water status and its potential effects on grape yields, water use efficiency (WUE) and the cost of irrigation to help improve irrigation practices in the region and other similar Mediterranean regions. The field experiment compared three levels of irrigation water applied: current irrigation of the vineyard (T0) and two deficit irrigation treatments with reductions to 75% (T1) and 50% of the irrigated water (T2). The measurements included volumetric soil water content, shallow groundwater table, canopy cover and grape yield at harvest during the entire growing season (October 2017 to April 2018). We found a potential reduction of 25% or 50% in the current irrigation system while maintaining the grape yield, increasing the WUE and reducing the cost of irrigation. Consideration of the water stored in the soil by the accumulation of rainfall in the winter season and the potential for capillary rise of shallow groundwaters is crucial for adjusting irrigation to vine water requirements.
dc.description.confidentialfalse
dc.edition.edition2024
dc.identifier.citationSalazar O, Castro M, Singh R, Ponstein H. (2024). Evaluation of potential irrigation water savings by assessing the soil water balance in a vineyard in central Chile. Irrigation and Drainage. Early View.
dc.identifier.doi10.1002/ird.2980
dc.identifier.eissn1531-0361
dc.identifier.elements-typejournal-article
dc.identifier.issn1531-0353
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/72297
dc.languageEnglish
dc.publisherJohn Wiley & Sons Ltd on behalf of International Commission for Irrigation and Drainage
dc.publisher.urihttps://onlinelibrary.wiley.com/doi/10.1002/ird.2980
dc.relation.isPartOfIrrigation and Drainage
dc.rights(c) 2024 The Author/s
dc.rightsCC BY-NC 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subjectbulk wine
dc.subjectdeficit irrigation
dc.subjectsoil water content
dc.subjectwater use efficiency (WUE)
dc.titleEvaluation of potential irrigation water savings by assessing the soil water balance in a vineyard in central Chile
dc.typeJournal article
pubs.elements-id489241
pubs.organisational-groupOther
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