Beyond climate change: the role of integrated soil fertility management for sustaining future maize yield in Sub-Saharan Africa

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dc.creatorCouedel, A.
dc.creatorFalcounier, G.N.
dc.creatorAdam, M.
dc.creatorCardinael, R.
dc.creatorSix, J.
dc.creatorLaub, M.
dc.creatorRuane, A.
dc.creatorBoote, K.
dc.creatorJustes, E.
dc.creatorSmith, W.N.
dc.creatorWhitbread, A.M.
dc.creatorAffholder, F.
dc.creatorAkinseye, F.M.
dc.creatorBalkovic, J.
dc.creatorBasso, B.
dc.creatorBhatia, A.
dc.creatorChakrabarti, B.
dc.creatorChikowo, R.
dc.creatorChristina, M.
dc.creatorFaye, B.
dc.creatorFerchand, F.
dc.creatorFolberth, C.
dc.creatorGaiser, T.
dc.creatorGaldos, M.
dc.creatorGayler, S.
dc.creatorGorooei, A.
dc.creatorGrant, B.
dc.creatorGuibert, H.
dc.creatorHoogenboom, G.
dc.creatorKamali, B.
dc.creatorMaureira, F.
dc.creatorMequanint, F.
dc.creatorNendel, C.
dc.creatorPorter, C.H.
dc.creatorRipoche, D.
dc.creatorRusinamhodzi, L.
dc.creatorSharma, S.
dc.creatorSingh, U.
dc.creatorSrivastava, A.
dc.creatorVanlauwe, B.
dc.creatorVersini, A.
dc.creatorVianna, M.
dc.creatorWebber, H.
dc.creatorWeber, T.
dc.creatorZhang, C.
dc.creatorCorbeels, M.
dc.date2026-02
dc.date2026-03-03T07:42:10Z
dc.date2026-03-03T07:42:10Z
dc.date.accessioned2026-06-27T16:08:59Z
dc.descriptionClimate change is projected to exacerbate food insecurity in sub-Saharan Africa (SSA) by reducing crop yields and soil fertility. Many climate change impact studies in SSA have overlooked long-term effects of soil fertility on crop yield. We evaluated maize yields under different scenarios of soil fertility (using soil organic carbon as a proxy) and climate change (considering changes in temperature, rainfall, and CO2) at four sites in SSA. Using an ensemble of 15 calibrated soil-crop models, we found a strong consensus that, without fertilization, soil fertility declines over time, impacting maize yields more strongly than changes in temperature, rainfall, or CO2. The model ensemble indicated that when accounting for soil fertility changes, the yield benefits of combined application of organic and mineral inputs increase over time, even under climate change. These findings highlight the importance of considering long-term change in soil fertility when assessing impacts of climate change and integrated nutrient management on crop production in SSA.
dc.formatapplication/pdf
dc.identifierhttps://hdl.handle.net/10568/181899
dc.identifier.urihttp://hdl.handle.net/123456789/123874
dc.languageen
dc.rightsLimited Access
dc.sourceCouëdel, A., Falconnier, G.N., Adam, M., Cardinael, R., Six, J., Laub, M., ... & Corbeels, M. (2026). Beyond climate change: the role of integrated soil fertility management for sustaining future maize yield in Sub‐Saharan Africa. Global Change Biology, 32(2): e70720, 1-15.
dc.subjectintegrated soil fertility management
dc.subjectinorganic fertilizers
dc.subjectsoil organic carbon
dc.subjectclimate change
dc.subjectfood security
dc.subjectmaize
dc.subjectyields
dc.subjectsub-saharan africa
dc.titleBeyond climate change: the role of integrated soil fertility management for sustaining future maize yield in Sub-Saharan Africa
dc.typeJournal Article

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Instituto Internacional de Agricultura Tropical (IITA)