Potassium humate is an organic compound with the chemical formula C9H8K2O4. It is a macromolecular organic substance that exists widely in nature. It is widely used in various fields such as agriculture, forestry, animal husbandry, petroleum, chemical industry, building materials, medicine and health, and environmental protection, across dozens of industries. In particular, the promotion of ecological agriculture, pollution-free agricultural production, green food, and pollution-free environmental protection products has made "humic acid" highly praised.