Soils contaminated with zinc from mining, refining, or fertilizing with zinc-bearing sludge can contain several grams of zinc per kilogram of dry soil. Amounts of zinc in excess of five hundred ppm in soil interfere with the ability of crops to soak up other crucial metals, such as iron and https://zincsulfide16936.madmouseblog.com/7265649/infrared-zinc-sulfide-secrets