Method for promoting blooming and fruit setting of walnut after freeze injury of late frost

Abstract

The invention belongs to the technical field of repair and remediation of fruit trees after freeze injury, and provides a method for promoting blooming and fruit setting of a walnut after freeze injury of late frost. The method is used for solving the problem today that the walnut tree is lack of promoting the blooming and fruit setting after freeze injury of late frost and the output is seriously influenced. The method comprises the following steps: after the frost freeze injury, shear the walnut tree according to the freeze injury degree; after the freeze injury, immediately spraying a tree growth recovery liquid formed by mixing Vitamin C, tea polyphenol, thiophanate methyl and water; at the blooming period of a mixed bud of the walnut side, spraying the walnut pollen water suspension liquid; when the walnut fruit is expanded, spraying fruit-setting nutrition fluid formed by mixing ferrous sulfate, urea, sodium borate, monopotassium phosphate and water in ratio. After the frost freezing of the walnut, actively remedy it, promote the secondary sprouting of the walnut, and effectively improve the fruit-setting rate; the method is low in cost and simple and easy to practice; after the frost freezing of the walnut, blooming and fruit setting are promoted. The dug component is strong in resistance to oxidation and good in fertilization; the nutrition component complies with the physiologic demand after the frost freezing of the walnut, and is easy to recover and remedy the growth of the walnut tree; and thus, the walnut tree is less in diseases.

Description

technical field [0001] The invention belongs to the technical field of restoration and remediation of fruit trees after frost damage, and in particular relates to a method for promoting flowering and fruit setting of walnuts after late frost damage. Background technique [0002] Walnut is one of the "four major nuts" in the world, and it is also one of my country's traditional advantageous forestry specialties. Since walnuts in my country are mostly planted in hilly and mountainous areas, coupled with global warming in recent years, the temperature changes abnormally in spring, walnuts are seriously affected by late frost damage, and the resulting loss of production is relatively large. For example, in 2013, the late frost in Shanxi Province caused a large area of ​​walnut crop failure and suffered heavy losses, which seriously dampened the enthusiasm of fruit farmers and restricted the development of the walnut industry. Affected by unfavorable factors such as global warmi...

AI Technical Summary

Problems solved by technology

After walnuts are damaged by frost, they will show different behaviors according to the severity of the frost damage. From male flower buds, mixed buds to young shoots and even young fruits, they will all be frozen and blackened, which greatly affects the production of walnuts.

However, there is no method for promoting walnut flowering and fruit setting after walnut late frost