Inorganic fertilizer use and its association with rice yield gaps in sub-Saharan Africa

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dc.creatorJohnson, J.M.
dc.creatorIbrahim, A.
dc.creatorDossou-Yovo, Elliott Ronald
dc.creatorSenthilkumar, Kalimuthu
dc.creatorTsujimoto, Y.
dc.creatorAsai, H.
dc.creatorSaito, Kazuki
dc.date2023-09
dc.date2023-11-07T15:17:13Z
dc.date2023-11-07T15:17:13Z
dc.date.accessioned2026-06-27T04:08:38Z
dc.descriptionWhere and which countries should receive higher priority for improving inorganic fertilizer use in rice fields in sub-Saharan Africa (SSA)? This study addressed this question by assessing the spatial variation in fertilizer use and its association with rice yield and yield gap in 24 SSA countries through a systematic literature review of peer-reviewed papers, theses, and grey literature published between 1995 and 2021. The results showed a large variation in N, P, and K fertilizer application rates and rice yield and an opportunity for narrowing the yield gap by increasing N and P rates, especially in irrigated rice systems. We identified clusters of sites/countries based on nutrient input and yield and suggested research and development strategies for improving yields and optimizing nutrient use efficiencies. Further research is essential to identify the factors causing low fertilizer use and the poor association between its use and yield in rainfed systems.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/132800
dc.identifier.urihttp://hdl.handle.net/123456789/22946
dc.languageen
dc.publisherElsevier
dc.rightsOpen Access
dc.sourceJohnson, J.M., Ibrahim, A., Dossou-Yovo, E., Senthilkumar, K., Tsujimoto, Y., Asai, H. and Saito, K. 2023. Inorganic fertilizer use and its association with rice yield gaps in sub-Saharan Africa. Global Food Security 38:100708.
dc.subjectefficiency
dc.subjectoryza
dc.subjectproductivity
dc.subjectyield gap
dc.subjectfertilizers
dc.subjectrice
dc.titleInorganic fertilizer use and its association with rice yield gaps in sub-Saharan Africa
dc.typeJournal Article

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Instituto Internacional de Investigación del Arroz (IRRI)