What is medical stone mineral fertilizer? What is a medical stone?

Medical stone mineral fertilizer is a new type of pollution-free fertilizer. Medical stone is a kind of natural medicinal ore, which contains major elements such as potassium, sodium, calcium, magnesium and phosphorus, and medium and trace elements such as zinc, iron, selenium, copper, strontium, iodine, fluorine and metasilicic acid 18. In 2000, Shi Mingbang, the chairman with strategic vision, relied on Nanyang's unique and rich mineral resources, such as medical stone, bluestone, calcite, zeolite and potash feldspar, and took Nanyang Bangfengbao Organic Fertilizer Factory, Nanyang Xinxin Natural Mineral Plant Products Factory, Beijing Kaidinong Biotechnology Co., Ltd., Henan Agricultural University, Henan Academy of Agricultural Sciences, Henan Provincial Department of Agriculture, Henan Provincial Soil Fertilizer Monitoring Station, Henan Provincial Technical Supervision Bureau, Nanyang Agricultural Bureau and Nanyang Soil Testing Center. From then on, the green revolution of domestic fertilizer began, and the scientific concept of "total nutrient fertilization" was formed.