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The apple tree is characterized by its cold-resistance, high yield, sweet fruit, good quality and strong storage stability. It is a popular fruit. If the apple is neglected after picking, it will cause the production to decline year by year. If properly managed, it will not only reduce the damage that the cold winter brings to fruit trees, but also lay the foundation for high yields in the coming year. According to the annual cycle and nutrient transport laws, from the ripening of fruit trees to the defoliation of fruit trees, the nutrient growth has stopped successively from July to November. The nutrients produced in that year are gradually transported to storage organs. The key to management during this period is to maintain the assimilation function of the blades and prevent early defoliation. Management during this period will directly affect the cold resistance of fruit trees in winter and the differentiation quality of flower buds, which will play a decisive role in flowering and growth in the coming year. According to the author's practice, I think we should grasp the following aspects. First, speed "post-natal" fertilizer due to the results of the tree during the period of consumption of a lot of nutrients, fruit picking as soon as possible after the application of fast-acting fertilizers, promote its early restoration of tree vigor, enhance the role of leaves to create carbohydrates, to ensure adequate Nutrition for flower bud differentiation and tree nutrient storage, improve the ability of drought, cold and disease resistance, the general strain applied urea 400-500 grams, 250-300 grams of phosphate fertilizer, potash fertilizer 150-300 grams, or ternary compound fertilizer 1 1.3 kg. Second, in time to wipe buds, picking up the heart or twist the tip of the canopy to 20-30 cm in length, should be topping or twisting. When the second tip is 30 cm long, it can be picked up or twisted to promote the early shoots mature. Clusters, dense branches, thin and weak branches, drooping branches, leggy branches, and pests and diseases should be cut off in part or in whole. 3. Prevention of pests and diseases 1. In addition to cutting off pests and diseases, the larvae that overwintered into the trunk must be detached, and 80% of the cotton saturated with dichlorvos plus 100 times the amount of water, or thick mud mixed into the trunk, can also be stuffed into the insect crossing. It can kill many kinds of larvae such as longhorned beetles. 2. Clear dead branches and fallen leaves in the park, scrape off the rough skin from the trunk and burn them in a concentrated manner. Use white sulfur compounds to brush the white trunk to kill the eggs. 3. Burn the tea dried cake with charcoal yellow and break it with fire. Soak it with 4 times hot water for 4 hours. After cooling, pour it into the garden and kill insects such as tigers, crickets, golden worms, and scarab larvae. . 4. Shallow grazing and cover grass To meet the needs of the growth and respiration of the roots of fruit trees, it should be 10-15 cm shallow under the canopy after fruit collection. But in the near trunk only 7-10 cm, and cover some straw, straw or grass, and then cover some of the broken soil to prevent the wind from moving. In this way, the soil can be loosened and ventilated, moisturized, drought-resistant, and insulated and resistant to cold. After the grass rots, it can also increase fertility for the garden. 5. Deeply turning the soil and applying sufficient basal fertilizer in late autumn and early winter from October to November to conduct a comprehensive deep-turning and soil reform (without the root plate under the tree) to a depth of 20-25 cm. Apply 40-50 kilograms of human and animal manure, compost, indigo, sewage ditch, and smashed straw to each plant (opened in a circular ditch outside the canopy and apply it to the earth) and then cover the entire garden 8-10 cm. Thick straw and covered with some crushed soil will help protect the water, soil and fertilizer in the park and enhance its ability to resist cold and drought.