Effect of Bio Regulators Enriched Poultry Manure on Nutrient Release Pattern in an Alfisol

An incubation experiment was conducted to determine the nutrient release pattern in soil over a period of 28 days due to the application of bio regulator enriched poultry manure. The processed experimental soil samples weighing 1 kg was filled in polyethylene containers with closed lid and incubated with different bio regulator enriched poultry manure along with control for 28 days. The moisture content was maintained at field capacity level throughout the experimental period. The amount of nutrient release pattern of soil was determined at 0^th, 3^rd, 7^th, 10^th, 15^th, 21^st and 28^th days of incubation period. The study revealed that all the treatments involving bioregulator enriched poultry manure recorded significantly higher available nitrogen, phosphorus, potassium and sulphur over control throughout the study. The application of enriched poultry manure can be effectively used to increase the mineralization and solubilisation of nutrients progressively thereby enables the manure to release the nutrients steadily and make it available to the plants for a longer time without much loss.