The first hurdle of pear tree management

Rational distribution of tree storage nutrients and reducing useless consumption is one of the important techniques to promote the normal growth of trees and produce high quality fruits. The period from flowering to fixed fruit is an important period to determine the number of fruit in the current year, the development of young fruit and the early formation of the leaf area that creates material conditions for the later development of fruit. During this period, measures such as wiping buds and thinning buds are used to reduce useless consumption of trees, which is the first hurdle of pear management in the whole year. Erase buds: erase buds that have nothing to do with fruit production, including buds that are easy to grow and hidden buds that sprout later. The buds near the cutting mouth of the main branch and secondary main branch after cutting off the strong branch in winter, the curved part of the big branch, the long branch on the back of the large side branch and the bud near the branch of the side branch after cutting the short fruit branch, it is easy to grow branch. After the bud sprouts in early spring, it should be erased when it grows to 2mi 5mm. The sooner the bud is sprouted, the better, until the flowering stage, so as to promote the transport of stored nutrients to the fruiting part. If it is delayed until the bud length is 5Mel 10mm, it can reduce the occurrence of overgrown branches, but the loss of storage nutrients is more, which is easy to cause tree weakness. The hidden buds that sprout late near the cutting mouth and the blind bud cluster of short fruit branches in winter are often easy to form long branches or useless leaves, which should also be erased in time. Thinning buds: buds can be removed from scale shedding to pre-flowering, but it is appropriate to remove buds when they are exposed. When thinning buds, press the buds from top to bottom with your fingers to break the pedicel. At the same time, attention should be paid to protecting the young leaves growing in the inflorescence, because these leaves spread early and are the basis for the early formation of the whole leaf area. When thinning buds, generally retain an inflorescence according to the standard of about 20 cm, weak and strong, small and large; sparse and sparse, sparse axillary (axillary flower buds) and top (top flower buds); thinning (lower part of the crown) and (upper part of the crown) to control the growth of the upper part of the crown; remove late budding buds. After the inflorescence protrudes, the accessory inflorescences should be removed in time and the normal flowers should be retained. When the pollination conditions are good and some flowers have been fertilized and can meet the requirements of high yield, it can be combined with pest control to spray Baume 0.3 degree stone sulfur mixture to kill the late flower stigma and play the role of flower thinning.