It is a white colored fertilizer with a small crystal structure and is obtained as a result of the reaction of potassium compounds with sulfuric acid. It has a high rate of useful potassium and contains 51% K2O. At the same time, since potassium sulfate, which contains around 18% sulfur, is completely soluble in water, it can be applied to the soil with both classical and drip/sprinkler irrigation, and to the leaves with a sprayer. The physical properties are better than those of other potassium fertilizers. Since potassium chloride cannot be used in plants that are sensitive to chlorine and there is a sulfur deficiency in the soil, it is an ideal fertilizer for such conditions. It is more effective in highly calcareous and high pH soils. This fertilizer is also used as a source of potassium in the blending of compound fertilizers.