Application of wheat base fertilizer is an important measure to improve soil fertility in wheat field. The proper application method of base fertilizer for winter wheat can maximize the effectiveness of the fertilizer so that early winter seedlings can be tilled and early rooted, strong seedlings can be cultivated, and the cold resistance of wheat can be improved. After winter, the stems and leaves can grow rapidly and the panicles can differentiate completely. The ear formed in a unit area is larger and larger, and lays the foundation for the growth after spring. Relieve the contradiction between moisture and nutrients in spring management and strive for active management in the spring. At the same time, the base fertilizer also has a good effect on the stability of the wheat in the medium term, the formation of spikes, and the prevention of late aging. Base fertilizer application method: When the amount is large, it should be applied in full layers. The coarse fertilizer can be applied deep before the cultivated land, and the fine fertilizer can be used as surface fertilizer. When the amount of base fertilizer is small, it should be applied centrally and the method of applying or apical treatment should be adopted. The application of base fertilizer not only means that the amount of fertilizer is sufficient, but more importantly, it refers to a reasonable ratio of nutrients and balanced fertilization, that is, formula fertilization. The principle of fertilization for high-yield wheat fields is to "stabilize nitrogen and phosphorus, supplement potassium, match micro, and increase organic fertilizer." The proportion of nitrogen fertilizer in the base fertilizer generally accounts for 30%-70% of the total nitrogen application rate in the whole growth period. The proportion of base fertilizer in high-fertility plots should be appropriately reduced, and the proportion of base fertilizer in low-fertility plots should be appropriately increased. The principle of total nitrogen application during the whole growth period is generally determined according to the level of soil fertility. High fertility plots generally use 12-14 kilograms of pure nitrogen per acre; mid-fertility plots generally apply 13-15 kilograms of pure nitrogen per acre; low fertility plots generally use 14-16 kilograms of pure nitrogen per acre. Phosphorus and potassium fertilizers and micro fertilizers were all used as base fertilizers. The application amount was generally 11 kg per mus of phosphorus pentoxide and about 10 kg of potassium oxide. Base fertilizer application method: When the amount is large, it should be applied in full layers. The coarse fertilizer can be applied deep before the cultivated land, and the fine fertilizer can be used as surface fertilizer. When the amount of base fertilizer is small, it should be applied centrally and the method of applying or apical treatment should be adopted. Shanghai J.Shine Co.,Ltd , https://www.jshinechem.com