CN104186208A

CN104186208A - Grafting method for promoting high yield of walnut fruits

Info

Publication number: CN104186208A
Application number: CN201410302265.7A
Authority: CN
Inventors: 李思兰
Original assignee: CHONGQING DONGKOU TECHNOLOGY Co Ltd
Current assignee: CHONGQING DONGKOU TECHNOLOGY Co Ltd
Priority date: 2014-06-27
Filing date: 2014-06-27
Publication date: 2014-12-10

Abstract

The invention discloses a grafting method for achieving high yield of walnut fruits. The grafting method comprises the following steps: (1) preparing rootstocks, namely adopting fresh twigs with the length being more than 30cm of the walnut tree which is fruitless for ten years as rootstocks; (2) breeding and carrying out scion; (3) grafting; (4) transplanting; (5) fertilizing; and (6) pruning. The improved walnut produced by the grafting method for promoting high yield of walnut fruits has strong early bearing property, has the fruiting rate more than 60%, has the survival rate more than 95% after transplanting, and has high yield; the improved walnut is sowed and grafted in the same year and bears fruit in the second year, the single plant can bear fringy or string fruits, and the walnut tree is vigorous, has strong branching rate and can fruit in inwards-growing twigs.

Description

Promote the grafting method of Walnut Fruit high yield

Technical field

The invention belongs to the technical field of grafting, specifically relate to a kind of grafting method that promotes Walnut Fruit high yield.

Background technology

Walnut is a perennial good economic tree, in recent years along with the understanding of people to walnut nutritious value, walnut price is more and more higher, in production, be badly in need of the Walnut Cultivars of a large amount of high quality and stable yields, because planting walnut seedling result evening, yield poorly, it is preferably the fastest approach that existing seedling tree reconfiguration is become to the improved seeds nursery stock that improved seeds and culturing and planting graft, walnut grafting is owing to being subject to the impact of bleeding and tanning matter, grafting difficulty is large, specification requirement is high, particularly walnut improved seeds (quality product) grafting is difficult to cultivate, graft survival rate is below 30%, directly affect the development of Walnut Industry, walnut on the walnut of grafting survival is all generally single result, thorax branch is result not, single upper major part of walnut is all sat 1 fruit, sit 2 fruits rare, cause walnut output few, price is high.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of grafting method that promotes Walnut Fruit high yield, the breeding Walnut that the grafting method of this promotion Walnut Fruit high yield is produced by force, sowing, grafting then, next year bear fruit then, fruiting rate is more than 60%, and after transplanting, survival rate is more than 95%, and output is high, single result is spike or string shape, peach tree vigo(u)r is vigorous, and branch rate is strong, thorax branch result.

For achieving the above object, a kind of grafting method that promotes Walnut Fruit high yield of the present invention, its step is as follows:

1) preparation of stock, selecting length on 10 years fruitless walnuts is that 30 centimetres of above raw branches are as stock;

2) cultivate scion, to taking extending head heavy pruning before the breeding walnut elite stand fall foliage of production scion or during spring rudiment, enrich the method for liquid manure, the short shoot wood of early sending out;

3) grafting method, grafting time is that June 1 was to June 15, temperature is between 26 ℃～32 ℃, at stock, give birth to then 2 a small amount of skins of bud central cut-out of healthy and strong branch, the bud of shoot wood on breeding walnut elite stand is taken off, bonding, at a small amount of skin place of raw 2 bud central cut-out of healthy and strong branch, with the tight bondage of plastic strip, is guaranteed interface humidity and healing condition.

4) transplant: select height above sea level below 1000 meters, pH value is less than or equal to 7 soil and digs tree nest, and mu is planted 50～80 strains and planted;

5) fertilising: adopt farmyard manure in the First Year of planting, adopt afterwards nitrogen content to surpass 28% composite fertilizer for a year;

6) beta pruning: at the high 50～80cm of ground floor tree bar, select 5～6 prosperous buds of growth will sprout side shoot, at the second layer and ground floor, apart during 60～80cm, select 3～4 the prosperous buds of growing will sprout side shoot, the 3rd layer with the second layer when 50～70cm, retain 2～3 major branches.

Further, in step 4) in, the long 35～45cm of described tree nest, wide 35～45cm, dark 35～45cm.

Further, in step 5) in, the described walnut treelet phase adopts annular groove or the fertilising of strip ditch, and walnut adopts radial canal shape to apply fertilizer the full bearing period.

Further, described radial canal shape fertilising is that 30～50cm is provided with many radial dressing furrows centered by walnut outside walnut tree crown, fertilizer is applied wherein in a row application ditch, blinding then, while applying fertilizer, next row application ditch carries out rotation fertilising next time.

Beneficial effect of the present invention is:

1, the present invention promotes breeding Walnut that the grafting method of Walnut Fruit high yield produces by force, sowing, grafting then, next year bear fruit then, fruiting rate is more than 60%, after transplanting, survival rate is more than 95%, output is high, single result is spike or string shape, peach tree vigo(u)r is vigorous, and branch rate is strong, thorax branch result.

2, the breeding walnut quality that the present invention promotes the grafting method of Walnut Fruit high yield to produce is good, nut subcircular, smooth surface, pit is few, thick 1 millimeter of shell, can round benevolence, and benevolence look shallow, the fragrant mouthfeel of taste is good, resistance to preservation, under normal temperature, nut can be preserved and never degenerate for 1.5 years, than general walnut precocity ripe 2 months, late July can gather.

Embodiment

The present invention is a kind of promote Walnut Fruit high yield grafting method, its step is as follows:

4) transplant: select height above sea level below 1000 meters, pH value is less than or equal to 7 soil and digs tree nest, and mu is planted 50～80 strains and planted, long 35～the 45cm of described tree nest, wide 35～45cm, dark 35～45cm, preferred described tree nest is long by 40, wide 40cm, dark 40cm;

5) fertilising: adopt farmyard manure in the First Year of planting, within 1 year, adopt afterwards nitrogen content to surpass 28% composite fertilizer, the described walnut treelet phase adopts annular groove or the fertilising of strip ditch, walnut adopts radial canal shape to apply fertilizer the full bearing period, described radial canal shape fertilising is that 30～50cm is provided with many radial dressing furrows centered by walnut outside walnut tree crown, fertilizer is applied wherein in a row application ditch, blinding then, while applying fertilizer, next row application ditch carries out rotation fertilising next time;

Finally explanation is, above preferred embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can to it, make various changes in the form and details, and not depart from the claims in the present invention book limited range.

Claims

1. a grafting method that promotes Walnut Fruit high yield, is characterized in that: its step is as follows:

2. the grafting method of promotion Walnut Fruit high yield as claimed in claim 1, is characterized in that: in step 4) in, the long 35～45cm of described tree nest, wide 35～45cm, dark 35～45cm.

3. the grafting method of promotion Walnut Fruit high yield as claimed in claim 1, is characterized in that: in step 5) in, the described walnut treelet phase adopts annular groove or the fertilising of strip ditch, and walnut adopts radial canal shape to apply fertilizer the full bearing period.

4. the grafting method of promotion Walnut Fruit high yield as claimed in claim 3, it is characterized in that: described radial canal shape fertilising is that 30～50cm is provided with many radial dressing furrows centered by walnut outside walnut tree crown, fertilizer is applied wherein in a row application ditch, then blinding, while applying fertilizer, next row application ditch carries out rotation fertilising next time.