Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives
Rice 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 r...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
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Elsevier
2022
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| Acceso en línea: | https://hdl.handle.net/10568/119426 |
| _version_ | 1855542887196917760 |
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| author | Dossou-Yovo, Elliott Ronald Devkota, Krishna Prasad Akpoti, Komlavi Danvi, A. Duku, C. Zwart, Sander J. |
| author_browse | Akpoti, Komlavi Danvi, A. Devkota, Krishna Prasad Dossou-Yovo, Elliott Ronald Duku, C. Zwart, Sander J. |
| author_facet | Dossou-Yovo, Elliott Ronald Devkota, Krishna Prasad Akpoti, Komlavi Danvi, A. Duku, C. Zwart, Sander J. |
| author_sort | Dossou-Yovo, Elliott Ronald |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Rice 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. |
| format | Journal Article |
| id | CGSpace119426 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | CGSpace1194262025-10-26T13:02:12Z Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives Dossou-Yovo, Elliott Ronald Devkota, Krishna Prasad Akpoti, Komlavi Danvi, A. Duku, C. Zwart, Sander J. water management research rice sustainable intensification water productivity oryza crop yield ecosystem services drought soil salinity irrigated land rainfed farming Rice 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. 2022-07 2022-04-30T21:21:03Z 2022-04-30T21:21:03Z Journal Article https://hdl.handle.net/10568/119426 en Open Access Elsevier Dossou-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] |
| spellingShingle | water management research rice sustainable intensification water productivity oryza crop yield ecosystem services drought soil salinity irrigated land rainfed farming Dossou-Yovo, Elliott Ronald Devkota, Krishna Prasad Akpoti, Komlavi Danvi, A. Duku, C. Zwart, Sander J. Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives |
| title | Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives |
| title_full | Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives |
| title_fullStr | Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives |
| title_full_unstemmed | Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives |
| title_short | Thirty years of water management research for rice in Sub-Saharan Africa: achievement and perspectives |
| title_sort | thirty years of water management research for rice in sub saharan africa achievement and perspectives |
| topic | water management research rice sustainable intensification water productivity oryza crop yield ecosystem services drought soil salinity irrigated land rainfed farming |
| url | https://hdl.handle.net/10568/119426 |
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