Main Components: Potassium Oxide Content: ≥ 50(%) Level: Agricultural Level Enforcement Standard: GB20406-2006 Specification: 50kg Appearance: Colorless or white crystals, particles or powders, odorless, bitter, hard, soluble in water. Application: Suitable for the demand of potassium in the process of crop growth, in the middle, late stage of crop growth and development.Flower maturity, fruit growth, especially in the use of chloropicrin crops, such as tobacco,Tea, grapes, sugar cane, beets, watermelons, potatoes and other increased application of potassium sulfate not only increased yield,It also improves quality.