Medicine, Seeds, Irrigation, Chlorophyll, Water treatment, Metabolism, R, Potassium, RA1-1270, Public aspects of medicine, Zinc, Plant growth, Effluents, RA1190-1270, Toxicology. Poisons, Medicine, Seeds, Irrigation, Chlorophyll, Water treatment, Metabolism, Potassium, RA1-1270, Public aspects of medicine, Zinc, Plant growth, Effluents, RA1190-1270, Toxicolo...