Effect of manure-based biochar amendment on soil chemical properties, total enzymic activities and tomato growth performance in acidic soil under controlled conditions
B. BOLOU-BI Emile, Philippe GUETY Thierry, TRAORE Adama, KONE Brahima
African Journal of Agricultural Research
Urban Farm DB summary
To evaluate the effect of biochar on tomato production in acidic soil, a complete randomized block design with 5 replications tested four treatments: 0% (T0, control), 8% (T1), 12% (T2) and 16% (T3) biochar application, measuring plant height, stem diameter, leaf number, fruit number and biomass. Plants receiving biochar (T1, T2, T3) were taller than the unamended control (T0); T1 plants averaged 12±2 fruits per plant, while T0 control plants produced no fruit at all, and T2/T3 fruit counts fell between the control and T1. Soil chemical analysis showed exchangeable cations, cation exchange capacity, pH, soil organic matter, total nitrogen and C/N ratio all higher than the initial soil, though treatments had no significant effect on soil enzymic activity. The study recommends recovering waste as an organic material source in urban horticulture and open-field cultivation to restore soil fertility.