Soils contaminated with zinc from mining, refining, or fertilizing with zinc-bearing sludge can contain various grams of zinc per kilogram of dry soil. Levels of zinc in excessive of 500 ppm in soil interfere with the power of plants to soak up other necessary metals, for example iron and manganese. https://infraredzincsulfide78776.blog-gold.com/32839647/an-unbiased-view-of-infrared-zinc-sulfide