Management methods of walnut trees after grafting

Abstract

The invention relates to a management method after walnut tree grafting, which belongs to the field of fruit tree grafting management. The plastic film at the grafted wound is removed within 25 days to 35 days after the grafted walnut tree survives, and the grafted wound is bandaged with newspaper; After grafting, when the new shoot of the scion grows to 20-50cm, cut off the top growth part of the new shoot, and after the axillary bud of the new shoot germinates to form a secondary branch, cut it off from the base, which can reduce the scion to a certain extent. The advantage of the top of the new shoot makes the new branch of the scion grow more vigorously, and at the same time reduces the branches that compete for nutrients, so that the tree vigor after grafting can be restored to strength as soon as possible, the wound of grafting can heal quickly, and the secondary compensation caused by grafting failure can be saved. Take labor and material costs, avoid the phenomenon that the new shoots of the year are easy to dry out due to the extreme low temperature in winter, and also prevent the scion from being blown off by strong winds, etc., and improve the preservation rate of walnut trees after grafting and the output of the next year.

Description

technical field [0001] The invention relates to the field of fruit tree grafting management, and in particular to a management method for walnut trees after grafting. Background technique [0002] Grafting is a method of breeding fruit tree seedlings widely used in production in vegetative propagation. Through grafting, the branches or buds of a good mother plant are grafted to the appropriate parts of the branches, trunks or roots of another plant, and a new independent plant is formed after both parties heal. [0003] Grafting is widely used in production practice, which is conducive to improving economic value. At the same time, grafting can enhance the disease resistance of plants, improve the low temperature resistance of plants, help overcome continuous cropping hazards, expand the scope and ability of root absorption, and help increase production, etc. . However, in the grafting of walnut trees, if the management after grafting cannot be carried out in a timely and ...

AI Technical Summary

Problems solved by technology

However, in the grafting of walnut trees, if the management after grafting cannot be carried out in a timely and perfect manner, there will be too many elongated branches and too dense, resulting in fierce competition for vegetative growth, and seriously affecting the reproductive growth of grafted walnut trees. , and normal flowering and fruiting, after the extreme low temperature in winter, most of the grafted new shoots dried up and died, and even the large walnut trees that were improved were dried up due to the scion drying up, and the big trees also dried up and died, which affected the walnut orchard output and economic benefits; if not managed in time, the grafted scion may be blown off from the rootstock due to strong winds, increasing the difficulty of grafting and the cost of secondary grafting, reducing the economic benefits of the orchard

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