Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives

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cg.contributor.donorWorld Banken_US
cg.coverage.regionSub-Saharan Africaen_US
cg.creator.identifierDr Akpoti Komlavi: 0000-0001-6435-5116en_US
cg.creator.identifierSander J. Zwart: 0000-0002-5091-1801en_US
cg.identifier.doihttps://doi.org/10.1016/j.fcr.2022.108548en_US
cg.identifier.iwmilibraryH051081en_US
cg.identifier.urlhttps://vlibrary.iwmi.org/pdf/H051081.pdfen_US
cg.isijournalISI Journalen_US
cg.issn0378-4290en_US
cg.journalField Crops Researchen_US
cg.reviewStatusPeer Reviewen_US
cg.volume283en_US
dc.contributor.authorDossou-Yovo, Elliott Ronalden_US
dc.contributor.authorDevkota, Krishna Prasaden_US
dc.contributor.authorAkpoti, Komlavien_US
dc.contributor.authorDanvi, A.en_US
dc.contributor.authorDuku, C.en_US
dc.contributor.authorZwart, Sander J.en_US
dc.date.accessioned2022-04-30T21:21:03Zen_US
dc.date.available2022-04-30T21:21:03Zen_US
dc.identifier.urihttps://hdl.handle.net/10568/119426en_US
dc.titleThirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectivesen_US
dcterms.abstractRice is one of the major staple foods in sub-Saharan Africa (SSA) and is mainly grown in three environments: rainfed upland and rainfed and irrigated lowlands. In all rice-growing environments, the yield gap (the difference between the potential yield in irrigated lowland or water-limited yield in rainfed lowland and upland and the actual yield obtained by farmers) is largely due to a wide range of constraints including water-related issues. This paper aims to review water management research for rice cultivation in SSA. Major water-related constraints to rice production include drought, flooding, iron toxicity, and soil salinity. A wide range of technologies has been tested by Africa Rice Center (AfricaRice) and its partners for their potential to address some of the water-related challenges across SSA. In the irrigated lowlands, the system of rice intensification and alternate wetting and drying significantly reduced water use, while the pre-conditions to maintain grain yield and quality compared to continuous flooding were identified. Salinity problems caused by the standing water layer could be addressed by flushing and leaching. In the rainfed lowlands, water control structures, Sawah rice production system, and the Smart-Valleys approach for land and water development improved water availability and grain yield compared to traditional water management practices. In the rainfed uplands, supplemental irrigation, mulching, and conservation agriculture mitigated the effects of drought on rice yield. The Participatory Learning and Action Research (PLAR) approach was developed to work with and educate communities to help them implement improved water management technologies. Most of the research assessed a few indicators such as rice yield, water use, water productivity at the field level. There has been limited research on the cost-benefit of water management technologies, enabling conditions and business models for their large-scale adoption, as well as their impact on farmers’ livelihoods, particularly on women and youth. Besides, limited research has been conducted on water management design for crop diversification, landscape-level water management, and iron toxicity mitigation, particularly in lowlands. Filling these research gaps could contribute to sustainable water resources management and sustainable intensification of rice-based systems in SSA.en_US
dcterms.accessRightsOpen Accessen_US
dcterms.bibliographicCitationDossou-Yovo, E. R.; Devkota, K. P.; Akpoti, Komlavi; Danvi, A.; Duku, C.; Zwart, Sander J. 2022. Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives. Field Crops Research, 283:108548. [doi: https://doi.org/10.1016/j.fcr.2022.108548]en_US
dcterms.extent283:108548en_US
dcterms.issued2022-07en_US
dcterms.languageenen_US
dcterms.licenseCC-BY-NC-ND-4.0en_US
dcterms.publisherElsevieren_US
dcterms.subjectwater managementen_US
dcterms.subjectresearchen_US
dcterms.subjectriceen_US
dcterms.subjectsustainable intensificationen_US
dcterms.subjectwater productivityen_US
dcterms.subjectoryzaen_US
dcterms.subjectcrop yielden_US
dcterms.subjectecosystem servicesen_US
dcterms.subjectdroughten_US
dcterms.subjectsoil salinityen_US
dcterms.subjectirrigated landen_US
dcterms.subjectrainfed farmingen_US
dcterms.typeJournal Articleen_US

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