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

Soil Research, Journal Year: 2025, Volume and Issue: 63(4)

Published: May 20, 2025

Soil acidity affects over 44% of Ethiopia’s farmland, yet knowledge acid soil management practices (ASMPs) and their impact on crop yields remains limited. Quantitative syntheses studies ASMPs role in yield improvement are also lacking Ethiopia. This meta-analysis aimed to: (1) compile datasets to estimate improvements from ASMPs; (2) provide a quantitative synthesis for evidence-based the Ethiopian highlands. Meta-analysis 30 experiments across 48 locations with pH < 5.5 was conducted quantify ASMP effects yields. Linear mixed-effects model applied using response ratio (RR), calculated treatment respective no-input control. Sub-group analyses quantified variability within between ASMPs. The weighted mean RR 1.67 indicating that implementing can increase by 67% relative However, significant residual heterogeneity (I2 = 98%, τ2 0.37) noted. Lime + phosphorus (P) fertiliser achieved highest (RR 2.94), followed P alone 1.60) lime 1.36). analysis revealed greater increases following compost N 2.48), biochar 2.29), 2.25), 1.55), 1.51), farmyard manure (FYM) 1.49), FYM 1.28) It is concluded 28–194% Compared other ASMPs, significantly higher all agroecological zones, texture slope classes. These findings emphasize ASMPs’ potential enhance production Ethiopia, providing valuable guidance effective policies practices.

Language: Английский

Exploring the Local Knowledge of Farming and Pastoral Communities in Relation to Climate Change Challenges in Ethiopia: A Systematic Review

Scientific African, Journal Year: 2025, Volume and Issue: unknown, P. e02794 - e02794

Published: June 1, 2025

Language: Английский