SR25020The magnitude of crop yield improvement with different soil acidity management practices in the Ethiopian highlands: a meta-analysis

Soil acidity affects over 44% of Ethiopia’s farmland, yet knowledge of acid soil management practices (ASMPs) and their impact on yields remains limited. This meta-analysis provides evidence that implementing ASMPs can increase crop yields by 28–194% relative to the no-input control. Application of agricultural lime, biochar, and synthetic fertilisers achieved 122, 104, and 78% increase in yield, respectively, relative to a no-input control. Results offer valuable insights to guide policies and practices for managing acid soils in Ethiopia.