Bud grafting method of walnut top grafting optimization

Abstract

The invention discloses a bud grafting method of early-fruit-bearing walnut top grafting optimization. The bud grafting method mainly comprises the steps of selection and treatment of stocks, acquisition of scions, selection of grafting time, grafting treatment and management after grafting; the bud grafting method is characterized in that in selection and treatment of the stocks, early-fruiting-bearing walnut good variety grafting saplings are utilized to build a garden, fruit bearing can be achieved in the third year after field planting, if walnuts still do not bear fruits 3-6 years after field planting or borne fruit are not uniform, it is judged that the trees are not the good variety walnut grafting saplings, top grafting optimization needs to be conducted, observation can be conducted in the first year, and boards are hung for marking to conduct top grafting optimization in the next year; the selected stocks are perennial branches, and the branch thickness is 2.0 cm-8.0 cm; thegrafting portions of the scions are the perennial branches, nutrients are centralizedly supplied and not easily diffused, the fast growth of the scions is promoted, the grafting variety branches are robust and vigorous in growth, and the occurrence of winter low-temperature frozen injuries is prevented.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency cultivation of fruit trees, in particular to a bud grafting method for high-grained early-fruited walnuts. Background technique [0002] At present, the walnut cultivation area in my country is growing rapidly. In the actual production, due to the uneven varieties of good and bad varieties in the walnut orchards that have been planted, the growth of the orchards is inconsistent, the individual differences are large, the results are few or the fruiting period is late, which seriously affects the economic benefits of the growers. The walnut plantation is improved. The level needs to be further improved, and the existing low-yield walnut orchards urgently need to be transformed by grafting improved varieties to obtain higher economic benefits as soon as possible. High grafting to high-quality is one of the commonly used technologies for orchard transformation at present. It can quickly realize...

AI Technical Summary

Problems solved by technology

Improper handling of walnut graft wounds has caused problems such as unstable high-grafting survival rates, and susceptibility to wind breaks after large-grafted walnut compound leaves have survived, which has seriously affected the survival rate and preservation rate of high-grafting and high-quality walnut low-yielding gardens, thereby limiting The implementation effect of walnut low-yield orchard transformation

Images