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Ammonia Volatilization of Winter Spread Manure

T. S. Steenhuis, Gary D. Bubenzer, James C. Converse

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Abstract

ABSTRACT LABORATORY and field experiments were con-ducted to determine ammonia volatilization rates from winter spread manure. Factors considered were manure application rate, freeze-thaw cycles, dehydration, and the urea-ammonium conversion rate. Freezing did not increase the volatilization rate. Drying was not required for volatilization. A mathematical model describing ammonia volatilization rates from land applied manure was developed.

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ABSTRACT LABORATORY and field experiments were con-ducted to determine ammonia volatilization rates from winter spread manure. Factors considered were manure application rate, freeze-thaw cycles, dehydration, and the urea-ammonium conversion rate. Freezing did not increase the volatilization rate. Drying was not required for volatilization. A mathematical model describing ammonia volatilization rates from land applied manure was developed.

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Available abstract

ABSTRACT LABORATORY and field experiments were con-ducted to determine ammonia volatilization rates from winter spread manure. Factors considered were manure application rate, freeze-thaw cycles, dehydration, and the urea-ammonium conversion rate. Freezing did not increase the volatilization rate. Drying was not required for volatilization. A mathematical model describing ammonia volatilization rates from land applied manure was developed.

Key concepts: Volatilisation, Ammonia volatilization from urea, Manure, Ammonia, Environmental science, Urea, Ammonium sulfate, Chemistry

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