Management of agricultural solid waste through Vermicompost, NADEP compost and pit compost method

Disposal of organic wastes from different sources like domestic, agriculture and industries create environmental hazards and economical problems. The present study was undertaken to convert agricultural solid waste into value added manures by various methods including vermicomposting, NADEP aerobic method and pit method of composting. The agricultural solid waste was used for preparation of different organic composts. The prepared compost was characterized and subjected to chemical analysis. The nutrients including nitrogen (N), phosphorus (P), potassium (K), organic carbon (OC)and moisture were estimated after mature stage of end product of various organic compost. The NPK contents were 1.10%, 1.60% and 0.98% in vermicompost0.66%, 0.79% and 1.15% NADEP compost and 0.90%, 0.83% and 0.65% in pit compost respectively. The vermicompost produced by E. fetida possessed higher nutrient contents as compared to NADEP compost and pit composting method. Among the three composting method, vermicomposting of agricultural solid waste with dung exhibited better fertilizers quality compared to the NADEP and pit method of composting.