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

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Title Inorganic fertilizer use and its association with rice yield gaps in sub-Saharan Africa
 
Creator Johnson, J.M.
Ibrahim, A.
Dossou-Yovo, Elliott Ronald
Senthilkumar, Kalimuthu
Tsujimoto, Y.
Asai, H.
Saito, Kazuki
 
Subject efficiency
oryza
productivity
yield gap
fertilizers
rice
 
Description Where 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.
 
Date 2023-09-01
2023-11-07T15:17:13Z
2023-11-07T15:17:13Z
 
Type Journal Article
 
Identifier Johnson, 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.
2211-9124
https://hdl.handle.net/10568/132800
https://doi.org/10.1016/j.gfs.2023.100708
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format 100708
application/pdf
 
Source Global Food Security