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Potential impact of climate change on drought-tolerant maize varieties and nitrogen fertilization in Nigeria savannas: a decision support tool (DST) analysis

Purpose – Nitrogen fertilization is a crucial factor in sustainable agriculture practices because it enhances the resilience of maize crops to climate change. This study aims to quantify location-specific adaptation measures to climate change using drought-tolerant maize varieties and N fertilizatio...

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Main Authors: Beah, A.A., Akinseye, F.M., Kamara, A., Jibrin, J.M., Tofa, A.
Format: Journal Article
Language:Inglés
Published: 2025
Subjects:
adaptation
climate change adaptation
climate change
maize
nitrogen fertilizers
yields
Online Access:https://hdl.handle.net/10568/178463
Summary:Purpose – Nitrogen fertilization is a crucial factor in sustainable agriculture practices because it enhances the resilience of maize crops to climate change. This study aims to quantify location-specific adaptation measures to climate change using drought-tolerant maize varieties and N fertilization in the savannas of Nigeria using the Agricultural Production Systems Simulator (APSIM) model. Design/methodology/approach – The calibrated APSIM-maize module was validated using an independent dataset from field experiments conducted under different N fertilization levels within savanna agroecological zones (AEZs). The impacts of climate change were assessed under low and high emissions representative concentration pathways (RCPs), 4.5 and 8.5 W m2 scenarios, for the near-term (2010–2039) and mid-century (2040–2069).

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