초록 ▼

Poultry production is improved by treating poultry manure in the growing location with alum in an amount of from about 0.75 to about 1.5 tons of alum per 10000 birds raised, or at least 0.15 to about 0.25 pounds of alum per bird raised. Poultry manure treatment with alum improves weight gain and fee

Poultry production is improved by treating poultry manure in the growing location with alum in an amount of from about 0.75 to about 1.5 tons of alum per 10000 birds raised, or at least 0.15 to about 0.25 pounds of alum per bird raised. Poultry manure treatment with alum improves weight gain and feed conversion and decreases mortality for birds grown on treated manure as compared with birds grown on untreated manure. The alum-treated manure may also be used as an agricultural fertilizer. When used as agricultural fertilizer in agricultural runoff water studies, plots fertilized with alum-treated manure exhibit decreased concentrations of phosphorus and heavy metals such as arsenic, copper, iron and zinc as compared with plots fertilized with untreated, normal poultry manure.

대표청구항 ▼

[ What is claimed is:] [1.] A method for reducing the amount of metals in agricultural runoff water obtained from soil fertilized with a poultry manure agricultural fertilizer, said method comprising:treating a poultry manure composition to be used as agricultural fertilizer by admixing said poultry

[ What is claimed is:] [1.] A method for reducing the amount of metals in agricultural runoff water obtained from soil fertilized with a poultry manure agricultural fertilizer, said method comprising:treating a poultry manure composition to be used as agricultural fertilizer by admixing said poultry manure with from about 5 to about 20% by weight of alum to provide a treated poultry manure; andthereafter, applying said treated poultry manure to soil as an agricultural fertilizer.