Relative effects of zinc and copper deficiencies on lucerne and subterranean clover.
D003300:Copper / Q000172:deficiency*; D000455:Medicago sativa; D008903:Minerals; D010944:Plants; D029921:Trifolium; D015032:Zinc / Q000172:deficiency*
D008903:Minerals; D003300:Copper; D015032:Zinc
COPPER/deficiency; PLANTS; ZINC/deficiency