Impact of Oil Palm Empty Fruit Bunch Biochar Enriched with Chicken Manure Extract on Phosphorus Retention in Sandy Soil

A 45-day incubation and leaching experiments was conducted to determine the effect of different rates (0, 1, 2, 3, 5 t ha−1) enriched empty fruit bunches biochar (EEFB) inorganic fertilizer (91 kg ha−1 triple superphosphate—TSP) on availability losses phosphorus from sandy soil (tin tailing soil). The treatments for study were designated as T1—without (control), T2—inorganic treatment using TSP T3, T4, T5, T6, which refers EEFB rate ha−1, respectively. prepared by shaking with chicken manure extract 24 h. addition soils found increase pH compared control treatment. After 45 days incubation, percentage in available P recorded 1.6, 2.9, 2.8, 4.1%, whereas treatment, reduce 10% 83%, Loss via higher control. However, highest among all this treatments. From study, it observed that can be used recapture transport soil, thereby reducing problems associated application.