Walnut tree grafting method

Abstract

The invention belongs to the technical field of agricultural cultivation, and provides a walnut tree grafting method. The method comprises the steps that the bottom of a scion is cut to be shaped like an inverted-L-shaped nail and then subjected to cuttage grafting on a gap of xylem and phloem of a stock, and grafting is conducted on a walnut tree. The walnut tree which is grafted through the method has the advantages of being small in grafting incision, short in grafting time, firm in combination of the scion and the stock, not likely to be blown off by wind and high in preserving rate of next year, using few materials for grafting and the like, the problems that in the prior art, due to the fact that a grafting wound of the walnut stock is big, the grafting survival rate is low, and the walnut tree obtained after grafting is conducted through a bud grafting method is likely to be frozen and cannot pass the winter are solved, for the walnut tree grafted through the method, the grafting survival rate and the preserving rate are both higher than 95%, and the preserving rate is 10%-20% higher than that of other branch grafting methods; meanwhile, by adopting plastic film wrapping, the survival situation is easy to observe, and the phenomena of a scion constriction mark, a wound and the like caused by long-time tying are not likely to appear.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for grafting walnut trees. Background technique [0002] Walnuts, also known as walnuts and Qiang peaches, are Juglandaceae plants, and are known as the world-renowned "four major dried fruits" together with almonds, cashews, and hazelnuts. Walnut kernels are rich in nutrients and have the reputation of "longevity fruit", "longevity fruit" and "health treasure". Every 100 grams of walnut kernels contain 15-20 grams of protein and 60-70 grams of fat, 86% of which are Unsaturated fatty acids, 10 grams of carbohydrates, and contain calcium, phosphorus, iron and other trace elements and minerals necessary for the human body, as well as carotene, riboflavin and other vitamins. At the same time, traditional Chinese medicine believes that walnuts are sweet, Warm in nature, enters the kidney, lung and large intestine meridian, has the effects of nourishing the kid...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the traditional method of regrafting large walnut trees is to first saw off the main trunk or side branches above the grafting interface at a suitable height, and then carry out bud grafting or twig grafting to the branches of the walnut tree that year in summer. Using methods such as summer budding, green branch double tongue grafting, spring bud grafting or hard branch double tongue grafting, etc., generally the scions are collected from the end of February to the beginning of March, and then stored, and grafted before and after germination in the second spring, but these grafting methods are It has certain defects, for example, the annual grafted walnut branches produced by bud grafting have a higher probability of drying out and dying; hard branches or tender branches are double-tongue grafted, and the probability of being blown off from the grafting port when there is a strong wind is relatively high, and the wound is easy to With rot disease, the tree vigor is easily weakened, and even finally withered and died; at the same time, the overall survival rate is low due to the impact of wounding and tannin

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