Potassium fertilizer is a type of fertilizer that provides plants with potassium, an essential macronutrient required for proper growth and development. Potassium fertilizer can come in different forms, such as potassium chloride, potassium sulfate, and potassium nitrate. It is commonly used in agriculture to increase crop yields and improve plant quality. China is one of the largest producers of potassium fertilizer in the world, thanks to its abundant potassium resources and advanced production technology. With its expertise in potassium fertilizer production, China is able to produce high-quality and cost-effective products that are widely used both domestically and internationally.