De gemiddelde stikstofgift uit dierlijke mest per hectare is sinds 1990 met 12 % gedaald en was in 2004 101 kg/ha benutte landbouwgrond, waarvan 94 % afkomstig was van rundermest, 3 % van varkensmest en 2 % van pluimveemest.
Average nitrogen input per hectare from livestock manure decreased by 12 % since 1990 and in 2004 was 101 kg/ha of Utilised Agricultural Land, of which 94 % from cattle manure, 3 % from pig manure and 2 % from poultry manure.
