First, the park selection site requires the use of leeward sunny hilly slopes, flat land or well-drained ditch. The soil is suitable for water retention, good ventilation, and loam and sandy loam with a pH of 7-7.5. Avoid planting walnuts on the soil where willows, poplars, and eucalyptus grow, to prevent root rot. Second, the walnut planting period is mainly divided into spring planting and autumn planting. Different regions can be based on the specific local climate and soil conditions. Third, planting methods Before planting, the top soil with good fertilizer should be filled into the pit first, then the seedlings should be put into the pit, and the root system should be stretched. Keep the seedling trunk vertical. Finally, the rhizomes are about 5 cm above the ground and the soil is 5-10 cm above the ground. Then full of water, until the water infiltration sealed with soil. Finally, cover the film to increase the temperature and increase the survival rate of the seedlings. IV. Post-planting management (a) Check the survival situation and replanting. After the buds have been displayed in the spring, the condition of the planted seedlings shall be checked in time, and the non-viable plants shall be timely replanted with the same species of seedlings. (b) The young trees are dry. For saplings that reach a fixed height, they should be dried in time after germination. Early solid walnuts have a height of 1-1.2 meters, and late real walnuts have 1.2-1.5 meters. When there is a crop, the dry height can be increased to 2 meters. (C) fertilization irrigation. After planting, it should be timely watered according to the dry and wet conditions of the soil. In the spring and summer, it can be combined with irrigation to apply proper amount of fertilizer. Nitrogen fertilizer is the main component in the early stage and phosphorus and potash fertilizer are the main components in the later stage. It is also possible to spray the fertilizer 1-2 times. (d) saplings against smoking. The main measures for prevention of pumping are to strengthen the management of fertilizer, water, pests and trees, and to improve the body's own resistance to freezing and resistance to stripping.