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　　Compound fertilizer has the advantages of high nutrient content, less side components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yield of crops. However, it also has some disadvantages. For example, its nutrient ratio is always fixed, while the type, quantity and proportion of nutrient elements required by different soils and crops are diverse. Therefore, it is recommended to measure the soil before use to understand the texture and nutritional status of the field soil. In addition, it is also necessary to pay attention to the application of unit fertilizer to achieve better results.

　　The foliar fertilizer granulator is to force the mixed soft materials to pass through the screen under the extrusion of the rolling knife, and then get the cylindrical particles with uniform length through the cutting of the scraper.