title: Seventh Boyd Orr Memorial Lecture. Managing the mineral cycle.
mesh_terms: D000383:Agriculture / Q000592:standards*; D000821:Animal Feed / Q000032:analysis / Q000592:standards*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D000829:Animals, Domestic / Q000378:metabolism*; D003906:Developing Countries; D005308:Fertilizers; D005523:Food Supply / Q000592:standards; D049673:History, 20th Century; D006801:Humans; D008903:Minerals / Q000032:analysis / Q000378:metabolism*; D009751:Nutritional Requirements; D012987:Soil / Q000032:analysis; D006113:United Kingdom
chemical_list: D005308:Fertilizers; D008903:Minerals; D012987:Soil