Vol. 9, Special Issue 2, Part A (2025)

A study was conducted to investigate the potential use of leaf litter and Salvinia molesta as sustainable raw material for the production of RP-enriched compost which helps not only in waste management but also creates value-added agricultural inputs. Three compost formulations were prepared using cattle shed waste, cow dung, Salvinia molesta and leaf litter from various tree species. Agricultural-grade RP (18% P₂O₅) was added to enhance phosphorus content. Results showed that composting significantly enhanced nutrient content and improved compost maturity. Organic carbon levels decreased due to microbial activity, while total nitrogen increased, particularly in Salvinia molesta compost. Phosphorus content improved markedly in leaf litter compost. Calcium levels increased significantly due to the RP enrichment, enhancing soil amendment properties. Micronutrients such as iron, manganese and zinc also showed notable increases. The findings suggest that RP-enriched composts derived from leaf litter and Salvinia molesta are highly effective in improving soil fertility and nutrient availability. The study supports the promotion of enriched organic manures as a viable alternative to synthetic fertilizers, ensuring long-term agricultural sustainability and soil health.