The manure model: manure, minerals (N, P and K), ammonia emission, heavy metals and the use of fertiliser in Dutch agriculture

abonos abonos nitrogenados ammonia ammoniac application rates azote bovin cattle costos costs dose d'application economia economics economie engrais engrais organique environmental impact farmyard manure fertilizers fosforo fumier ganado bovino heavy metals impact sur l'environnement impacto ambiental legislation metales pesados minerales minerals modele modelos models nitrogen nitrogen fertilizers organic fertilizers phosphore phosphorus potasio potassium