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March 23, 2026European Journal of AgronomyOpen Access

Impacts of climate variability and multiple fertilization strategies on rainfed maize production in Sub-Saharan Africa

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Authors

RARodolphe AzizUniversity of SassariAPAntonio PulinaUniversity of SassariMRMargherita RizzuUniversity of Sassari

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Implication

Reveals the effects of climate variability and fertilization strategies on rainfed maize yields in Sub-Saharan Africa, indicating the need for site-specific adaptation.

Key Points

  • The aim is to assess how climate variability and different fertilizer treatments impact rainfed maize production in Sub-Saharan Africa.
  • Used the DSSAT-CERES-Maize model to simulate maize performance.
  • Analyzed the impact of climatic variability from 1984 to 2023.
  • Evaluated four fertilization treatments across five representative sites in Sub-Saharan Africa.
  • Measured changes in phenology and yield in response to temperature and rainfall variations.
  • Temperature increases shortened time to anthesis and maturity by 3-7% and 3.7-6.4%, respectively.
  • Significant yield gains from fertilizers only observed in Bumula (KE) and Nabdam (GH).
  • No yield improvements noted in Béréba (BF), Bombali (SL), or Monduli (TZ).
  • High rainfall correlated with reduced yields in specific regions.
  • Inorganic fertilizers provided the most stable yield across varying rainfall conditions.

Cite This Study

Aziz et al. (2026) studied this question.

synapsesocial.com/papers/69c0e007fddb9876e79c16e5https://doi.org/10.1016/j.eja.2026.128093
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