To improve the fruit setting rate of apricot trees, rational fertilization is necessary.

1 basic fertilizer, such as rotten chicken manure, barnyard manure, compost, fish pond mud, rotten human manure and other farm manure, can supply organic matter and trace elements necessary for apricot growth and development for a long time, which is not only the basic fertilizer, but also the basis for apricot flowering and fruiting. In general, when the soil is not frozen before winter, combined with orchard ploughing, strip ditches or radial holes are used at one time, and the fertilization depth is generally 40 cm to 60 cm; for big trees, weak trees and trees with poor flower bud quality, each tree is applied 0.3 kg to 0.5 kg of phosphorus and potassium fertilizer. (2) topdressing is to make up for the lack of base fertilizer, which can be divided into pre-anthesis fertilizer, post-anthesis fertilizer and flower bud fertilizer. Pre-flowering fertilizer is generally after soil thawing in spring, 0.2 kg to 0.5 kg urea is applied to each plant before flower bud germination, young and prosperous trees are not fertilized, and water is irrigated in time after fertilization. This topdressing can promote the flowering neatly, reduce the drop of flowers and fruits, and be beneficial to the growth of new shoots and roots. Apricot trees consume a lot of nutrients after flowering, young fruits expand rapidly after falling flowers, new shoots and new leaves also begin to grow vigorously, need more nutrients, should be timely topdressing available nitrogen fertilizer, combined with a small amount of phosphorus and potassium fertilizer. In the fruit expansion or hard kernel stage, quick-acting nitrogen fertilizer combined with a small amount of phosphorus and potassium fertilizer should be applied to promote flower bud differentiation and lay the foundation for high yield in the following year.