Fertilizer dissolves and mixes The application of liquid manure does not require stirring or mixing. Generally, the solid manure needs to be mixed with water to form a liquid manure and is separated if necessary to avoid problems such as precipitation. Fertilizer amount control The dosage should be mastered during fertilization. The appropriate concentration of infusion fertilizer is about 0.1% of the irrigation flow. For example, the irrigation flow is 50 cubic meters/mu, and the infusion fertilizer is about 50 liters/mu; excess application may cause crops to die and environmental pollution. Fertigation procedures In the first stage, the fertilizer-free water was used for moisturizing; in the second stage, fertilizer solution was used for irrigation; in the third stage, the irrigation system was cleaned with fertilizer-free water.