Water soluble fertilizer, as the name suggests, is a fertilizer that can be completely dissolved in water. It has many unique advantages that make it stand out in modern agriculture. First of all, the nutrient content of water-soluble fertilizer is high, and the nutrient elements exist in ionic state, which is easy to be absorbed and utilized by plants, and can quickly meet the needs of crop growth. Secondly, water-soluble fertilizer can be applied through drip irrigation, spray irrigation and other ways to achieve accurate fertilization, reduce fertilizer waste, and improve the utilization rate of fertilizer. In addition, water-soluble fertilizer also has the advantages of convenient use and labor saving, which greatly improves the efficiency of agricultural production.