The preservation of soil health is critical for sustainable agriculture, particularly in the face of global challenges such as soil degradation, climate change and population growth. This study investigates the temporal release patterns of nitrogen and selected soil health indicators –organic carbon (OC), pH, cation exchange capacity (CEC), bulk density (ρ b) and aggregate stability – under various organic amendments – compost (CMP), biochar (BCH), co-composted biochar (C-BCH), and compost + biochar (CMP + BCH). The amendments were applied at a rate of 15 t ha -1 to Alfisols, common in Samaru, Zaria, Nigeria, and their effects on soil health were monitored at four-week intervals for 12 weeks. Sole application of NPK and control were also used for comparison. All treatments were replicated 9 times in a completely randomized design. The result demonstrated that N release in CMP was highest in week 4, and declined over subsequent weeks due to N uptake and fixation. Treatments containing BCH showed a steadily increasing N release over the study period. Overall, the treatments improved soil pH, OC and ρ b by 20.3 – 23.4%, 17.5 – 34.2%, and 2.8 – 10.4% respectively. Aggregate stability and CEC were also significantly improved. CMP + BCH had the highest effect on soil health ( Hs = 0.60), improving its status from poor to good. The contribution of readily available OC in CMP and stability of BCH paired to improve soil fertility and physical condition across the treatments. Further studies recommendation suggests field validation, as well as exploring potential contributions of the various amendments to carbon sequestration.