Fertilizer: Within The late 18th and early 19th generations, Nova Scotia gypsum, frequently referred to as plaster, was a highly sought fertilizer for wheat fields in the United States. Impurities in refinery gypsum waste have, in many cases, prevented them from getting used as typical gypsum in fields for instance https://www.propanraya.com/id/produk/eco-gypsum-ee-4050