Enhancing soil fertility with biochar amendments for improved rice growth in Sub-Saharan Africa

Abstract

Soil fertility is a crucial factor influencing rice production in Sub-Saharan Africa (SSA). This study investigates the potential of biochar amendments to improve soil fertility and enhance rice growth in this region. Field experiments were conducted in three locations: Ibadan (Nigeria), Kumasi (Ghana), and Morogoro (Tanzania). Biochar produced from local agricultural residues was applied at rates of 10 t/ha and 20 t/ha. Soil pH, nutrient levels (N, P, K), water-holding capacity, and rice growth parameters (plant height, number of tillers, and biomass) were measured. Results indicated significant improvements in soil properties and rice productivity, with the high biochar treatment showing the most substantial benefits. These findings suggest that biochar could be a viable strategy for enhancing rice production in SSA by improving soil fertility and crop yields.