CN101491187A - Incubation method of open-centralized shape mulberry - Google Patents

Abstract

The invention relates to a high-yield culture method for an open-center type mulberry. The method comprises the following steps: fixing a stem for a cultured nursery stock in a first spring; carrying out the summer cutting for the twigs growing on a first stem; after the summer cutting, carrying out the autumn cutting for the twigs growing on the first stem so as to form a second stem; breeding silkworms through the twigs cut from the top of the second stem; and carrying out the cycle. Through the summer cutting for the twigs on the first stem in the second year, the method prolongs the spring growing period of the mulberry and brings about an additional silkworm spring rearing season. Through the autumn cutting for the twigs after the summer cutting in the same year, the culture period is reduced from three years to two years. A plurality of twigs are forked from the top of the second stem, so that the method increases the number of the twigs and improves the yield. The method changes a traditional mode of picking mulberry leaves and adopts mulberry twig harvest to replace the leaf collection, thereby improving the mulberry leaf yield and reducing the workload of mulberry leaf collection. The method has the advantages of saving time and labor, reducing cost and increasing benefits, along with short culture period, high leaf yield and good silkworm breeding effects; therefore, the method deserves generalization.

Description

The breeding method of happy type mulberry tree high yield

Technical field

The present invention relates to a kind of mulberry tree breeding method, specifically is a kind of breeding method of happy type mulberry tree high yield.

Background technology

Low dried mulberry is supported the cultural method that established law is a kind of mulberry tree high yield tree type of being most widely used in the existing plantation.This method by 1 year to the nursery stock planted do surely, 1 year to the branch of growing on the trunk carry out the spring cut down, beginning in the 3rd year carries out the method that the summer cuts down to the branch of growth again, the growing of mulberry cultivated of moving in circles thus is comparatively vigorous, is suitable for dense planting.But cultivation period is long, and growing of mulberry is higher, is difficult to improve the output and the quality of mulberry leaf, has increased the management difficulty in mulberry field, has reduced the control efficiency of mulberry tree damage by disease and insect.Especially mulberry leaf need be gathered by artificial sheet leaf, have not only strengthened labour intensity and recruitment cost, wither easily again after the mulberry leaf collection, have directly influenced mulberry leaf quality and sericulture benefit.

Summary of the invention

In order to overcome the shortcoming that prior art exists, the purpose of this invention is to provide that a kind of cultivation period is short, leaf yield is high, sericultures is profitable, change mulberry shoot harvesting into, be convenient to the breeding method that the happy type mulberry tree of field operation is got bumper crops by the collection of sheet leaf.

The breeding method of a kind of happy type mulberry tree high yield of the present invention may further comprise the steps:

Choose that nursery stock is sturdy (1) first year spring, well developed root system, disease-free mulberry sapling plant, seeding row spacing is 167 * 45cm;

(2) planting afterwards, the overhead high 10-15cm of mulberry sapling decides at the place to do;

(3) treating after fixed the doing that the mulberry bud is sprouted when sprout grows to 15cm carries out bud thinning, chooses that the 3-4 root is sturdy, the uniform sprout of direction is done as first, and first pole is taken in and is grown the long branch of 150cm year, and winter, overhead high 100cm place was to the horizontal top clipping of branch;

The branch that do first at (4) second years overhead high 20-25cm places carries out horizontal cut shoot in summer, makes the excurrently whenever to do long 20-25cm;

(5) summer is cut down the back and chooses two sprout growths the sprout of sprouting from excurrent whenever doing, and makes first dried going up form 6-8 root branch;

(6) grow to 80-85cm when long from first 6-8 root branch of doing to grow, overhead high again 105cm carry out at place level cut be shaped as second dried;

(7) be branched into the new twig of 12-16 root from second dried top, the every long 90-120cm of new twig, pluck core to new twig the last ten-days period in August, begins the middle ten days and the last ten days in September second new twig of dried top clip bred silkworms.

The present invention adopts 1 year spring that the nursery stock of planting is done surely, carries out that the summer is cut down and the summer is cut down the back branch of first pole growth is carried out the twig sericulture that fall pruning forms second dried, second dried top clip since 1 year branch to the growth of first pole, and a kind of novel mulberry tree training approach that moves in circles thus.By 1 year the branch on first pole is carried out the summer and cuts down, prolonged the vegetative period in spring of mulberry tree, increase supported one the last month of spring silkworm, every mu of mulberry field can increase cocoon yield 25-30kg newly.The branch of first pole growth after cut down the summer the same year carries out fall pruning, thereby has shortened cultivation period, reduces to 2 years by 3 years.Because changed the superstructure of mulberry tree, the growing height of mulberry tree is reduced to 1.8-2 rice by 2.5-3 rice, help picking leaves greatly, control field operation such as worm.From the second pole top bifurcated 12-16 root twig, increased branch bar number, improved output, promptly develop into the new twig of 12-16 root by original 6-8 root branch bifurcated, take to pluck the core measure again, not only mulberry leaf output increases 15%-20% thus, and has improved the quality of mulberry leaf.Breed silkworms by clip twig mulberry leaf, changed traditional picking leaves mode, be improved to mulberry shoot harvesting by the collection of sheet leaf, not only help Nutrient Accumulation in the branch in autumn, spring in next year, the output of mulberry leaf can be increased production 12-15% thus, had promoted the sericulture benefit greatly, had also reduced the amount of labour used that mulberry leaf are gathered simultaneously, 4-6 working day can be reduced by in every mu of mulberry field, saved and gone into power, financial resources in a large number.

Description of drawings

Accompanying drawing is the flow chart of mulberry tree breeding method of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is further described.

A kind of breeding method of happy type mulberry tree high yield may further comprise the steps:

1, choose that nursery stock is sturdy, well developed root system, disease-free mulberry sapling plant, seeding row spacing is 167 * 45cm;

2, planting afterwards, the overhead high 10-15cm of mulberry sapling decides at the place to do;

3, treating after fixed the doing that the mulberry bud is sprouted when sprout grows to 15cm carries out bud thinning, chooses that the 3-4 root is sturdy, the uniform sprout of direction is as first dried a, and first pole is taken in and is grown the long branch of 150cm year, and winter, overhead high 100cm place was to the horizontal top clipping of branch; When if sprout is lower than 3, when sprout grows to 10cm, the core bifurcated is plucked at its top and handled, thereby turn out 3-4 root first pole;

4, do the branch of going up a to first and carry out horizontal cut shoot in summer at 1 year overhead high 20-25cm place, makes the excurrently whenever to do long 20-25cm, and the later on annual summer is cut down all at excurrent top cut shoot, year by year after formation " fist " formula herein;

5, the summer is cut down the back and chooses two sprout growths the sprout of sprouting from excurrent whenever doing, and makes first dried going up form 6-8 root branch;

6, grow to 80-85cm when long from first 6-8 root branch of doing to grow, overhead high again 105cm carries out at place level and cuts fixed (fall pruning) and form second dried b;

7, be branched into the new twig c of 12-16 root from second dried b top, the every long 90-120cm of new twig, large quantities of with leaf first half of the month be late August new twig to be plucked core, begin annual the middle ten days and the last ten days in September second new twig of dried top clip bred silkworms;

8, after this do " fist form training " at first annual summer and locate to carry out the summer and cut down, treat autumn branch grow to 80cm when long again level cut and be shaped as second and do, the new twig that second of clip done is bred silkworms.Move in circles thus, the annual summer is cut down with fall pruning and can turn out " happy type " high yield mulberry tree that whole tree crown is no center major branch.

Claims (1)

1, a kind of breeding method of happy type mulberry tree high yield may further comprise the steps:

Choose that nursery stock is sturdy (1) first year spring, well developed root system, disease-free mulberry sapling plant, seeding row spacing is 167 * 45cm;

(2) planting afterwards, the overhead high 10-15cm of mulberry sapling decides at the place to do;

(3) treating after fixed the doing that the mulberry bud is sprouted when sprout grows to 15cm carries out bud thinning, chooses that the 3-4 root is sturdy, the uniform sprout of direction is done as first, and first pole is taken in and is grown the long branch of 150cm year, and winter, overhead high 100cm place was to the horizontal top clipping of branch;

The branch that do first at (4) second years overhead high 20-25cm places carries out horizontal cut shoot in summer, makes the excurrently whenever to do long 20-25cm;

(5) summer is cut down the back and chooses two sprout growths the sprout of sprouting from excurrent whenever doing, and makes first dried going up form 6-8 root branch;

(6) grow to 80-85cm when long from first 6-8 root branch of doing to grow, overhead high again 105cm carry out at place level cut be shaped as second dried;

(7) be branched into the new twig of 12-16 root from second dried top, the every long 90-120cm of new twig, pluck core to new twig the last ten-days period in August, begins the middle ten days and the last ten days in September second new twig of dried top clip bred silkworms.

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