In order to overcome the "one-shot" phenomenon of nitrogenous fertilizer in the big bell mouth, the improper fertilization methods of phosphorus, potassium and trace fertilizers were neglected to promote the formation of strong seedlings for maize, and corn fertilization should be vigorously promoted to apply seed fertilizer (miaofei). In the sowing, attention should be paid to the use of N, P, K, Zn, and Mn, etc. The seed and fertilizer should be applied in separate branches so as to avoid burning or burning seedlings. Mushi DAP 3-5 kg, ** zinc 0.5-1 kg, potassium chloride 3-5 kg, can also be applied slow-release fertilizer or compound fertilizer. If no fertilizer is applied, Miaofei should be topped.