Utilization of Poultry Litter Waste for Organic Manure Production

Poultry litter, a heterogeneous mixture of poultry excreta, bedding materials such as wood shavings, rice husk, or straw, feathers, and residual feed particles, is widely recognized as a nutrientrich organic by-product with considerable agronomic potential. It contains substantial amounts of essential macronutrients, particularly nitrogen, phosphorus, and potassium along with calcium, magnesium, and trace minerals such as zinc, copper, and manganese, making it a valuable soil amendment. The growth of the global poultry industry, driven by rising demand for affordable animal protein, has intensified broiler and layer production systems, resulting in concentrated poultry operations that generate large quantities of litter. If managed appropriately, poultry litter can enhance soil fertility, improve organic matter content, promote microbial diversity, and reduce reliance on synthetic fertilizers, thereby contributing to sustainable crop production and circular nutrient economies. However, improper handling or excessive application can pose environmental risks, including nutrient runoff, water eutrophication, ammonia volatilization, and pathogen transmission. Therefore, its utilization requires scientifically informed processing methods such as composting, pelletizing, or co-amendment with biochar or vermicompost to stabilize nutrients and mitigate hazards. With proper management, poultry litter represents not just a waste by-product but a renewable agricultural resource capable of improving productivity while supporting environmental stewardship