Mineral elements '80; proceedings (of) a Nordic Symposium

absorption animal nutrition besoin nutritionnel chrome chromium cinc cobre copper cromo cuivre cycling enfermedades humanas feed crops fer health hierro human diseases human nutrition iron maladie de l'homme manganese manganeso metabolismo de minerales mineral metabolism minerales minerals necesidades de nutrientes nutrition animale nutritional requirements oligoelementos plant soil relations plantas forrajeras relaciones planta suelo relation plante sol salud selenio selenium test biologique trace elements zinc