Documentation

The model Agrammon calculates ammonia loss on the basis of the N-flux (Flux Model). For the stages housing/yard, manure store, manure application, grazing and other sources the loss is calculated by using emission factors as a proportion of the soluble nitrogen in the system. For slurry stores, an emission factor per m² of surface area of the slurry store is used. Important production variables such as feed, housing system, covering of slurry store or emission-minimising application systems are taken into account in emission factors as correction factors.