1、 Apply foliar fertilizer

At the beginning of flowering, foliar fertilizer can be applied to the leaves, and low concentration urea solution can be used, which can promote flower bud differentiation. It is also necessary to spray points during flower blooming and young fruit growth. In addition to urea solution, 0.4% potassium dihydrogen phosphate solution should be mixed. Foliar fertilization can effectively reduce the drop of flowers and fruits and improve the fruit setting rate of plum trees

2、 Perform girdling

This method is for trees that have been growing for 12-15 years and have reached the full fruit stage. You can peel them at the full flowering stage. On the trunk about 15 cm from the ground, use a sharp knife to cut two circles along the trunk, with the width controlled at about 4-6 mm, and then peel off the skin along the trunk. For small trees and weak trees, this step cannot be carried out

3、 Anthesis spraying

After entering the full flowering period, you can spray 300 times of borax and boric acid on the tree, which can improve the fruit setting rate, and the effect is very considerable

4、 Prune flower buds

For trees with a large amount of flowers, you can cut off some small flower buds at the beginning of flowering, which can also play a role