Study of the Effect of Biochar Incubation on Some Physico-Chemical Properties of a Tropical Leached Soil from South-West Chad

Soils in the Sudanian zone of Chad, and more specifically leached tropical soils, were subject to physical chemical degradation phenomena that hamper crop production. Solving this problem requires solutions for rational improvement fertility. The aim study, conducted a controlled environment, was assess fertilising potential biochar on impoverished soil by monitoring kinetics evolution release elements improve physico-chemical quality soil. Four treatments carried out: control (T0), treatment 1B: 100g + 0.225g (i.e. 5 t/ha), 2B: 0.3375g 7.5 t/ha) 3B: 0.450g 10 t/ha). Each repeated four times. main parameters measured during trial period: pH, assimilable phosphorus, exchangeable bases their sums (Ca, Mg, K, Na SBE) cation exchange capacity. These different showed significantly improved quality, whatever dose incubation time, compared with T0 control. Treatment 1B (5t/ha application) increased pH an average 6.5%, phosphorus 132.5%, SBE 406.1% CEC 43.4%. 2B (application t/ha biochar) 8.5%, 155.1%, 207.6% 46.2%. 3B 10t/ha produced marked improvement, increasing 11.2%, 198.7%, 457.6% 29.9%. results further confirm vital importance soils. Based sum gave better considerably initial element content than other treatments.