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Walnut improved combined grafting method

A walnut and combined operation technology, which is applied in the field of walnut improved combined grafting, can solve the problems of high technical requirements for bud picking, slow bud bud eye germination, complex and changeable grafting technology, etc., and achieve high wound healing, uniform wound rules, The effect of improving the survival rate of head replacement

Inactive Publication Date: 2018-10-23
凉山彝族自治州亚热带作物研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The walnut grafting method is an effective way to improve the yield and quality of low-yielding and inferior walnut trees. For walnuts, common grafting methods include bud grafting, split grafting, and patch bud grafting. The growth is not vigorous; the traditional splicing is to split the joint vertically in the center of the traditional cutting surface, and the splicing often causes large wounds, which is not conducive to healing and reduces the survival rate; the cultivation time of patch budding rootstock is too long, and the bud eyes on the bud pieces germinate Slow, slightly higher technical requirements for bud extraction and lower survival rate
In actual production, the survival rate is less than 80% with single split grafting and patch budding. The complex and changeable production situation makes the original grafting technology of the producers invalid, and they are tired of coping

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0040] A method for improving combined grafting of walnuts, comprising rootstock management, grafting combination operations, and grafting cultivation, the steps of which are as follows:

[0041] (1) Rootstock management: in spring or after fruit picking, select a good, robust, pest-free rootstock, the age of which is 2 years old. Specifically, cut off the trunk or first-level branches of the selected tree at a distance of 35 cm from the ground. The color of the section remains unchanged for a long time, the water is sufficient, and the sap is thin and bright like water; 20 days before grafting, start to use compound fertilizer with the total nutrient content of N, P, and K≧15% on the rootstock to fertilize in ring furrows, 50g per plant, Keep sufficient water, and topdress the fertilizer respectively at the beginning of June and the end of July of the same year, and topdress the fertilizer 3 times in total;

[0042] (2) The combined operation of grafting includes the steps of...

Embodiment 2

[0053] A method for improving combined grafting of walnuts, comprising rootstock management, grafting combination operations, and grafting cultivation, the steps of which are as follows:

[0054] (1) Rootstock management: in spring or after fruit picking, select good, robust, and pest-free rootstocks with a tree age of 5 years. Specifically, cut off the trunk or first-level branches of the selected trees at a distance of 70 cm from the ground. The color of the section remains unchanged for a long time, the water is sufficient, and the sap is thin and bright like water; 30 days before grafting, start to fertilize the rootstock with a compound fertilizer with a total nutrient content of N, P, and K≧15%, 150g per plant, Keep sufficient water, and topdress the fertilizer at the beginning of June and the end of July of the same year respectively, and topdress the fertilizer twice in total;

[0055] (2) The combined operation of grafting includes the steps of scion collection and tr...

Embodiment 3

[0068] A method for improving combined grafting of walnuts, comprising rootstock management, grafting combination operations, and grafting cultivation, the steps of which are as follows:

[0069] (1) Rootstock management: in spring or after fruit picking, select good, robust, and pest-free rootstocks with a tree age of 3 years. Specifically, cut off the trunk or first-level branches of the selected trees at a distance of 55 cm from the ground. The color of the section remains unchanged for a long time, the water is sufficient, and the sap is thin and bright like water; 24 days before grafting, start to use compound fertilizer with the total nutrient content of N, P, and K≧15% on the rootstock to fertilize in ring furrows, 100g per plant, Keep sufficient water, and topdress the fertilizer at the beginning of June and the end of July of the same year respectively, and topdress the fertilizer once in total;

[0070] (2) The combined operation of grafting includes the steps of sci...

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Abstract

The invention provides a walnut improved combined grafting method. The method includes the steps of stock management, grafting combination operation and grafting cultivation. The grafting combinationoperation includes the steps of scion acquisition and treatment, stock cutting and scion inserting and grafting portion binding. A stock is peeled to be pre-treated, and according to the uniformity and integrity after a cortical layer is pulled downwards, subcutaneous veneer-scion grafting or improved cleft grafting of a cutting scion is determined to be adopted. Whether plate budding is adopted or not is determined according to the roughness of the scion. By means of the grafting method, the suitability of the stock and the scion is fully considered, the grafting coalescence is good, the survival rate is 90% or above, operation is convenient, and the method is suitable for large-scale afforestation.

Description

technical field [0001] The invention relates to the technical field of fruit tree cultivation, in particular to an improved combined grafting method for walnuts. technical background [0002] Walnut, a deciduous tree, is one of the world-renowned "four major dried fruits". It can be eaten raw, stir-fried, oil-extracted, prepared into cakes, candies, etc. It is not only delicious, but also has high nutritional value. It is known as "Longevity Fruit" and "Longevity Fruit". [0003] The walnut grafting method is an effective way to improve the yield and quality of low-yielding and inferior walnut trees. For walnuts, common grafting methods include bud grafting, split grafting, and patch bud grafting. The growth is not vigorous; the traditional splicing is to split the joint vertically in the center of the traditional cutting surface, and the splicing often causes large wounds, which is not conducive to healing and reduces the survival rate; the cultivation time of patch buddin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G2/30A01G2/38A01G2/35
CPCA01G2/30A01G2/35A01G2/38
Inventor 张国薇王彩王浩张才彬穰箐张华李元良
Owner 凉山彝族自治州亚热带作物研究所
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