Cereal yield and water requirements in response to irrigation and soil fertility management in a changing climate: a case of Tulsipur, western Nepal

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cg.contributor.affiliationTribhuvan University, Nepalen_US
cg.contributor.affiliationInternational Water Management Instituteen_US
cg.contributor.donorTribhuvan University, Nepalen_US
cg.coverage.countryNepalen_US
cg.coverage.iso3166-alpha2NPen_US
cg.coverage.subregionTulsipuren_US
cg.creator.identifierNirman Shrestha: 0000-0002-0996-8611en_US
cg.identifier.doihttps://doi.org/10.2166/wcc.2025.543en_US
cg.identifier.iwmilibraryH053701en_US
cg.isijournalISI Journalen_US
cg.issn2040-2244en_US
cg.issue3en_US
cg.journalJournal of Water and Climate Changeen_US
cg.reviewStatusPeer Reviewen_US
cg.volume16en_US
dc.contributor.authorZuber, Md.en_US
dc.contributor.authorKalauni, N.en_US
dc.contributor.authorShrestha, Nirmanen_US
dc.contributor.authorPandey, V. P.en_US
dc.contributor.authorPokharel, B.en_US
dc.date.accessioned2025-04-02T10:58:55Zen_US
dc.date.available2025-04-02T10:58:55Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/173983en_US
dc.titleCereal yield and water requirements in response to irrigation and soil fertility management in a changing climate: a case of Tulsipur, western Nepalen_US
dcterms.abstractClimate change is projected to notably impact water requirements and crop yield; therefore, it is imperative to quantify climate risk and devise climate-resilient field management practices. This study applied the AquaCrop model to Tulsipur, a sub-metropolitan city located in Western Nepal. The model was calibrated and validated on a field scale, and various scenarios were analysed for baseline (2010–2020) and future (2021–2100) periods to formulate workable management strategies for irrigation and fertilizer applications. Results showed that a deficit irrigation strategy could lead to 81% fewer requirements for irrigation in rice and 24% in wheat at the cost of a minimal (~1%) reduction in yield. Water requirement is projected to decrease and crop yield to increase for both crops for all future scenarios, except wheat water requirement, where water requirement is projected to increase by up to 13% in the future. Rainfed irrigation leads to extremely high variance in crop yields. Deficit irrigation under the nationally recommended fertilizer dose is recommended as a better option to develop climate resiliency in cereal yield in the study area.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.available2025-03-05en_US
dcterms.bibliographicCitationZuber, Md.; Kalauni, N.; Shrestha, Nirman; Pandey, V. P.; Pokharel, B. 2025. Cereal yield and water requirements in response to irrigation and soil fertility management in a changing climate: a case of Tulsipur, western Nepal. Journal of Water and Climate Change, 16(3):837-859. [doi: https://doi.org/10.2166/wcc.2025.543]en_US
dcterms.extent837-859.en_US
dcterms.issued2025-03en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-NC-4.0en_US
dcterms.publisherIWA Publishingen_US
dcterms.subjectcrop yielden_US
dcterms.subjectwater requirementsen_US
dcterms.subjectirrigation managementen_US
dcterms.subjectsoil fertilityen_US
dcterms.subjectclimate changeen_US
dcterms.subjectclimate resilienceen_US
dcterms.subjectclimate modelsen_US
dcterms.subjectclimate predictionen_US
dcterms.typeJournal Articleen_US

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