Soils contaminated with zinc from mining, refining, or fertilizing with zinc-bearing sludge can comprise quite a few grams of zinc per kilogram of dry soil. Levels of zinc in excessive of 500 ppm in soil interfere with the power of crops to absorb other important metals, for example iron and https://infraredzincsulfide72837.link4blogs.com/50225681/the-infrared-zinc-sulfide-diaries