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Predicting Management Effects on Ammonia Emissions from Dairy and Beef Farms

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  053054,  2005 ASAE Annual Meeting . (doi: 10.13031/2013.19071) @2005
Authors:   C. Alan Rotz, Jouke Oenema
Keywords:   Ammonia emission, Nitrogen loss, Cattle production, Farm, Simulation

Component models were developed to predict ammonia nitrogen losses from cattle manure in the barn, during storage, following application, and during grazing. These relationships were integrated into a whole-farm simulation model to provide a tool for evaluating and comparing long-term nutrient losses along with other performance and economic aspects of farm production. Whole-farm simulations illustrated that the use of a free stall barn, bottom-loaded slurry storage, and direct injection of manure into the soil reduced ammonia emissions by 30-50% compared to other commonly used animal housing and manure handling systems in the northeastern US.

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