1. Selective cultivation: Walnut is suitable for growing on warm sandy loam and black loam with deep soil layer and good drainage, and should be planted on sunny slopes and leeward. Newly planted young trees should have enough water and fertilizer and spray new high-fat film, which can ensure the evaporation of ground water and transpiration of seedlings, isolate pests and diseases, shorten the slow seedling stage and accelerate the development of roots. 2. Pruning: It is an important cultivation technique to make walnut bear fruit early and have high and stable yield. The pruning period of walnut is different from that of ordinary fruit trees. This is done after the fruit is picked and before the leaves turn yellow. In order to promote wound healing and prevent the invasion and infection of germs, walnut wounds were coated with calluses in time. 3. Stabilize flowering and fruit setting: spray Zhuangguodiling in bud stage, young fruit stage and fruit expansion stage to thicken fruit pedicles, increase nutrient transport, prevent flowering, improve pollination ability, increase fruit setting rate, accelerate fruit expansion and ensure high quality and high yield of fruits. The bearing capacity of trees is unbalanced due to the years of fruit bearing, which not only affects the balanced income, but also affects the health of trees in orchards. Brush Wang Cuihua No.2 once a year in flower bud differentiation period, which can promote flower bud differentiation, restrain summer shoot from growing wildly, strengthen flowers, and improve pollination ability and fruit setting rate. 4. The main pests of walnut are: walnut moth, walnut caterpillar and walnut weevil. The main diseases of walnut are: walnut black spot disease and walnut dead branch disease. Control measures Spraying targeted drugs to kill. At the same time, it is necessary to spray tree protection generals on trees and spray new high-fat films in the garden to keep warm and moisturize to ensure safe wintering.