Abstract:
A model (MAST) to calculate the mass flow of NH through a model dairy farm has been developed. Updated 3 emission factors for UK agriculture were used to examine different abatement strategies available for a typical dairy farm. A range of annual NH emissions was calculated for both slurry and FYM based dairy systems. 3 21 21 Emission for the slurry based system ranged between 27 kg NH -N ha yr , achieved using a combination of 3 21 21 abatement strategies, and 107 kg NH -N ha yr , calculated for a ‘worst case’ scenario. For FYM, this range 3 21 21 was between 33 and 86 kg NH -N ha yr . The greatest reductions were achieved by manipulating options 3 linked to fertiliser usage and manure application.
Description:
Ross, C. A., Scholefield, D., Jarvis, S. C. (2002). A model of ammonia volatilisation from a dairy farm: an examination of abatement strategies. Nutrient Cycling in Agroecosystems, 64, (3), 273-281 Sponsorship: MAFF