Rapid updating and rejuvenation method for tree body weakened by apple rot

Abstract

The invention discloses a rapid updating and rejuvenation method for a tree body weakened by apple rot. The rapid updating and rejuvenation method comprises the following steps: digging off soil around a trunk of the tree body in the last ten-day period of March so as to expose a first root system base part, spraying a bactericide to the root of the trunk, and backfilling the soil; sawing the treebody from a site which is 3cm-5cm from the ground, and carrying out grafting at a saw kerf; selecting a main head according to the height of a scion, removing a sprout, and carrying out twig drawingand angle opening; selecting a scion twig as a permanent tree body to be cultured in the middle ten days of August, grafting the other two scions to the permanent tree body; carrying out pinching on the main head in the middle ten days of September; completely releasing the twigs during the trimming so as to enable the twigs to naturally extend in a single-shaft manner, and selecting main twigs which are distributed in a spiral rising manner; carrying out bud notching and twig promotion; removing buds on the backs of the main twigs, and carrying out twig drawing and angle opening; and carryingout fertilization and sterilization. According to the rapid updating and rejuvenation method for the tree body weakened by apple rot, the frequent use of a large number of chemical pesticides is avoided, the defects caused by the scraping of diseased scars are overcome, and the rapid updating and rejuvenation of the weakened tree body are realized only through underground healthy roots.

Description

Technical field [0001] The invention belongs to the technical field of tree regeneration and rejuvenation, and in particular relates to a method for rapid regeneration and rejuvenation of debilitated trees caused by apple rot. Background technique [0002] Apple tree rot disease is a serious stem disease caused by apple black rot shell fungus, which causes necrosis and decay of the bark. There are multiple scars or large areas on the main trunk, central leading trunk, and main branches of the apple tree. The scars will cause the tree's vigor to be severely weakened and the productivity to be severely low. For apple trees with an apple rot disease level of 7 or higher, the tree vigor is severely weak. The main control methods and tree body rejuvenation methods currently used are still chemical pesticide control, scar scraping or bridging methods, but their disadvantages are: [0003] (1) For apple trees with an apple rot disease level of 7 or above, frequent and large amounts of ch...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies pointed out in the above-mentioned background technology, the present invention provides a kind of rapid renewal and rejuvenation method for the weakened tree body caused by apple rot disease, which can fundamentally solve the problem of tree body weakness caused by apple tree rot disease, and realize tree health. body's rapid rejuvenation