Fruit base fertilizer is generally divided into autumn, winter and spring planting, that is, from the fruit harvest to the spring before the spring of this time. Practice has proved that the application of basal fertilizer to fruit trees is best for autumn, especially for deciduous fruit trees. This is because the higher temperature in the autumn and the strong microbial activity in the soil are conducive to the decomposition of fertilizers and the absorption of nutrients by the fruit trees, thereby synthesizing more organic nutrients, which will have a good effect on germination, larvae, and fruit setting in the coming spring. At the same time, it can also enhance the cold resistance of the tree and help the fruit trees to safely pass winter. The following points should be mastered during fertilization in autumn: Selecting fertilizers: mainly organic fertilizers and slow-acting fertilizers, such as manure fertilizers, soil miscellaneous fertilizers, cake fertilizers, plant ash, etc., and appropriate application of available nitrogen fertilizers, phosphate fertilizers, and potash fertilizers. The application amount of organic fertilizers should be taken into account. More than 90% of the total amount of fertilizer is applied in the year. Dosage: The application amount of fertilizer should be determined according to the size of the fruit tree, nutritional status, and the number of fruits. Each plant applies 35 to 50 kg of organic fertilizer, 1 to 1.5 kg of superphosphate, and 0.4 to 0.5 kg of urea. Method: The combination of orchard ploughing using radial groove or annular groove, fertilizer depth of 40 to 50 cm. To apple trees and pear trees, apply a little deeper, apply a little lighter to peaches and vines, and cover with soil after fertilization. Watering: Pour 1 to 2 times of water after fertilization. This will not only make the fertilizer have sufficient moisture to rot and ferment and decompose, but also make the fruit tree not dry during the autumn season. After watering, crop straws, weeds, etc. can be used to cover the soil.