CN103918535A - Method for culturing seedling of Damascus rose - Google Patents

Abstract

The invention discloses a method for raising seedlings of rose Damascus, belonging to the technical field of seedling propagation. The Damask rose seedling raising method of the present invention comprises seedling bed treatment, cutting treatment, cutting and maintenance management after cutting, wherein said seedling bed treatment is to put the substrate into a floating seedling tray, then place the floating seedling tray on the water bed, and spray until the substrate is completely wetted; the cutting is to insert the treated cuttings into the substrate of the floating seedling tray, and after all the cuttings are completed, disinfect the cuttings, the substrate and the floating seedling tray with a disinfectant. In the seedling raising method of the present invention, the cuttages are cut into the floating seedling raising tray, and the substrate humidity in the floating seedling raising tray can be kept within a stable range, so that the humidity of the growth environment of the cuttings is stable, and the humidity is not too high or too low. Phenomenon, the rooting rate of cuttings is high, and the survival rate of cutting seedlings is high.

Description

A kind of seedling raising method of Damask rose

technical field

The invention relates to a method for raising seedlings of Rose Damascus, belonging to the technical field of nursery stock propagation.

Background technique

Damascus rose (Rosa damascena) is a shrub native to Asia Minor and has been cultivated in southern Europe for a long time. Damascus roses are gorgeous in color and full of aroma. They can not only be used as flower walls, green walls, flower bed enclosures and garden ornamental flowers and trees, but also have the effects of promoting blood circulation and removing blood stasis, reducing swelling and pain, and beautifying the skin. It is also a world-renowned spice. It is an ingredient of smoked tea, brewing wine, food and medicine, and has high economic value. Rose essential oil extracted from Damascus rose flowers is rich in high-unit vitamin C. It has mild texture, pleasant fragrance, strong and long-lasting characteristics; it also has the effects of relieving stress, reducing scars, anti-allergic, and whitening. In addition to the above advantages and functions, Damask rose essential oil also has the functions of regulating premenstrual syndrome, menstrual cycle, heart, stomach, liver, uterus, treating eczema, regulating and shrinking capillaries, etc. It is the best among rose essential oils.

The seedling raising method of Damascus rose in my country is mainly cutting seedling raising. The Chinese invention patent with the publication number CN102612971A discloses a method for the cutting propagation of roses, which includes the following steps: (1) treatment of the seedbed: dig a cutting hole 16-27 cm deep, apply soil with a mixed substrate at the bottom, and the soil is 4-6 cm thick ; The cutting hole is located on a ridge with a spacing of 40-60cm and a width of 80-120cm, and the spacing of the cutting holes is 40-60cm; (2) processing of cutting strips; (3) cutting: inserting the processed branches into the cutting hole (4) Management after cutting: keep the temperature at 18-28°C, keep the water content of the seedbed at 60-80%, and the relative humidity of the air at 65-85%, and water it with rooting liquid every day after cutting After 10-15 days, stop watering the rooting solution, and let the cuttings gradually receive light.

The above-mentioned rose cutting propagation method, the cutting branches lack root system, the vegetative organs are incomplete, the absorption ability to the nutrient elements and water in the matrix is weak, the self-healing ability of the cutting branches is weak, and the viability is weak. Insert the cuttings on the ridge box. The water storage capacity of the ridge box is weak, and water needs to be added to the soil regularly to maintain the moisture content in the soil. However, the method of regularly watering to maintain the moisture content in the soil will lead to large fluctuations in the soil moisture around the cutting branches, and the cutting branches will absorb the water in the soil unevenly, which will affect the life activities of the cutting branches, which will lead to the low rooting rate of the cutting branches and the cutting Seedling survival rate is low.

Further, during the rooting process of branch cuttings, the cutting branches have different specific requirements on the humidity of the substrate and the air humidity in the seedling shed during different growth periods. However, the above-mentioned rose cutting propagation method only provides that the water content of the seedbed after the cutting is controlled to be 60-80%, and the relative air humidity is 65-85%. Carry out design, finally cause the rooting rate of cutting seedling to be low, the survival rate of cutting seedling is low.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art that the soil around the cutting seedlings and the humidity of the matrix fluctuate widely, and the management of the humidity of the matrix after transplanting and the relative humidity of the air around the cuttings cannot adapt to the growth characteristics of the cutting seedlings. The method of rearing seedlings with constant substrate and soil moisture can greatly increase the rooting rate and survival rate of cuttings;

The purpose of the present invention is also to further improve the rooting rate and survival rate of the cuttings by adjusting the substrate humidity after cuttings and the air humidity around the cuttings.

In order to realize the above-mentioned purpose of the invention, the present invention provides the following technical solutions:

A method for raising seedlings of Rose Damascena, comprising (1) nursery bed treatment, (2) cutting treatment, (3) cuttings and (4) maintenance management after cuttings, wherein,

The seedling bed treatment in the step (1) is as follows: the substrate is loaded into a floating seedling tray, then the floating seedling tray is placed on the seedling water bed, and sprayed until the substrate is completely soaked;

The cutting of the step (1) is: insert the cuttings treated in the step (2) into the matrix of the floating seedling raising tray described in the step (1), after all the cuttings are completed, disinfect the cuttings, the matrix and the floating seedling raising tray with a disinfectant Disinfect and sterilize, adjust the temperature of the water bed in the nursery pool to be 20-30°C, and adjust the air humidity around the cuttings to be greater than 90%.

The seedling raising method of the above-mentioned Damascus rose, the floating seedling tray is a kind of seedling tray that can float on the water, and the seedling tray includes several hole grooves (determined according to the size of the seedling tray), and the bottom of each hole groove is provided with a through hole . Pack the prepared matrix into the hole groove of the floating seedling tray, then place the floating seedling tray on the water bed to float, the substrate absorbs the water in the water bed of the seedling pool through the through hole, and set the depth of the floating seedling tray submerged in the water , can adjust the humidity of the substrate in the floating seedling tray. Put the cuttings into the floating seedling tray, the depth of the floating seedling tray submerged into the water bed remains unchanged, and the humidity of the matrix around the cuttings can be kept constant, so that the humidity of the growth environment of the cuttings is stable, and the rooting rate of the cuttings is high and the survival rate is high. high.

As a preferred version of the present invention, the maintenance management after the step (4) cutting is to adjust the air temperature around the matrix and the cuttings to be 20-30°C; 90% of the light from the shade net;

According to the following four stages, adjust the substrate humidity and the air humidity around the cuttings:

(a) 1st to 7th day after insertion:

Humidity: air humidity > 90%, substrate humidity is 70-80%;

(b) 8th to 15th day after insertion:

Humidity: air humidity > 90%, substrate humidity is 60-70%;

(c) On the 16th to 20th day after insertion:

Humidity: air humidity 70-90%, substrate humidity 50-60%;

(d) After the 20th day after insertion: the air humidity is the same as the natural air humidity, and the substrate humidity is 50-60%.

The above-mentioned air humidity is the air humidity in contact with the cuttings.

In the process of cutting seedlings, the growth and development of cuttings to cutting seedlings can generally be divided into four stages. In these four stages, cuttings have strict requirements on the humidity of the substrate and the air humidity around the cuttings. For this growth characteristic, the inventor has designed the above-mentioned post-planting maintenance management. The first stage: 1 to 7 days after the cuttings are cut, this stage is the callus formation period of the cuttings. During this period, the cuttings have no root system, and the cuttings have a weak ability to absorb water around them. In order to ensure the moisture in the cuttings, the inventor has adopted the method of opening up sources and reducing expenditure to ensure the water balance in the cuttings. The method of increasing income and reducing expenditure refers to keeping the humidity of the substrate at a high value, increasing the absorption of moisture in the substrate by the cuttings, and simultaneously increasing the air humidity to reduce the transpiration of the blades of the cuttings. Find through inventor's research, this stage needs to keep air humidity higher than 90%, substrate humidity is 70～80% cuttings absorb moisture and output moisture and keep a dynamic balance, the callus of cuttings heals fast. When the air humidity is lower than 90%, the water in the cutting leaves evaporates quickly, which will destroy the dynamic balance of water in the cuttings, resulting in water loss in the cuttings, which in turn leads to a low rooting rate of the cuttings and a low survival rate of the cutting seedlings; at the same time, the substrate humidity is lower than 70%. When the cuttings have insufficient power to absorb water, it will also destroy the dynamic balance of water in the cuttings, causing the cuttings to lose water, which will lead to low rooting rate of cuttings and low survival rate of cutting seedlings; and substrate humidity higher than 80% will lead to substrate permeability. Weakened, the anaerobic respiration of the part of the cuttings located in the matrix is strengthened, and the product of anaerobic respiration, alcohol, will cause the cuttings to rot. The second stage: 8 to 15 days after the cuttings are cut. This stage is the young root growth period of the cuttings. During this period, the cuttings start to take root. When rooting, the cell proliferation requires more energy. The vital activities are still weak. At this stage, it is necessary to properly reduce the humidity of the substrate and improve the permeability of the substrate. This will not only help increase the aerobic respiration of the rooting part of the cuttings, provide energy guarantee for cell proliferation, but also appropriately weaken the life activities of the cuttings, reduce the energy consumption of the cuttings, and ensure the supply of nutrients from the cuttings to the rooting process; at the same time, this Although the water absorption capacity of the cuttings increases during this period, the humidity of the substrate will decrease accordingly, and it is still necessary to maintain a high humidity in the air around the cuttings. The inventor has found through long-term research that during the young root growth period of the cuttings, the substrate humidity is kept at 60-70%, the air humidity is >90%, and the rooting rate of the cuttings is high, and the cuttings are rooted cuttings. The third stage: 16-20 days after transplanting, this stage is the rooting period of cuttings. At this stage, the cutting seedlings continue to proliferate young roots, and at the same time, the root system of young roots proliferates in large quantities, and the root system grows thick. The water absorption capacity of the cutting seedlings is greatly improved, and the respiration of the root system is significantly enhanced, further reducing the humidity in the substrate and improving the permeability of the substrate, which can not only increase the oxygen content in the substrate, enhance the respiration of the root system, but also accelerate the heat dissipation of the substrate The ability to reduce the temperature around the root system and avoid damage to the root system can greatly increase the survival rate of cutting seedlings. Further, at this stage, the water absorption capacity of the cutting seedlings is enhanced, and the absorption capacity of the roots of the cutting seedlings to the nutrients in the substrate is also greatly improved. Reducing the humidity of the air can enhance the transpiration of the leaves of the cutting seedlings, and increase the absorption of the roots of the cutting seedlings in the substrate. Absorption capacity of nutrients and water. The inventor found that during this period, the substrate humidity was 50-60%, and the humidity of the air around the cutting seedlings was 70-90%. In the fourth stage, the rooting period of the seedlings is completed after the 20th day after transplanting, and the vegetative organs of the cutting seedlings are fully developed, and the seedlings can be hardened according to the normal natural environment, that is, the air humidity during this period is the same as the natural air humidity, and the substrate humidity is still maintained at 50~ 60%, the seedlings can be transplanted or sold after hardening.

As a preferred solution of the present invention, the cuttings are semi-lignified shoots. The semi-lignified twigs are tender and rich in growth hormone and soluble enzymes. Enzyme activation is strong, which is conducive to the formation of callus and rooting of cuttings, which can greatly increase the rooting rate of cuttings and the survival rate of cutting seedlings.

As a preferred solution of the present invention, the cuttings are 10-15 cm long. More preferably, the length of the cuttings is 10cm. In the period when the root system of the cuttings is underdeveloped, that is, the first stage to the third stage above, the absorption of water and nutrients by the cuttings is very weak, the photosynthesis of the leaves on the cuttings is weak, and the various life activities of the cuttings mainly depend on the nutrients in the cuttings Material maintenance, when the length of the cuttings is less than 10cm, the nutrients stored in the cuttings are less, and the cuttings will die due to insufficient nutrient supply during the cutting process; The transpiration of the cuttings is strengthened, but the root system of the cuttings is underdeveloped, and the ability of the cuttings to absorb water is weak, which will cause the cuttings to lack water, dry up, and even die.

Further preferably, the incision at the upper end of the cutting is flat, and the incision at the lower end of the cutting has an angle of 43-47 degrees to the radial plane of the cutting. Even more preferably, the angle between the cut surface of the lower end of the cutting and the radial plane of the cutting is 45°. The incision at the upper end of the cuttings is flat and the area of the incision is small, which can reduce the transpiration of water from the stem of the cuttings and reduce the occurrence of pests and diseases; the incision at the lower end of the cuttings is at an angle of 43 to 47 degrees to the radial plane of the cuttings, which increases the distance between the cuttings and the substrate. The contact area can promote the absorption of water in the substrate by the cuttings, and can also reduce the incidence of diseases and insect pests on the cuttings.

As a preferred solution of the present invention, 2 to 4 leaves are reserved on the cuttings. Retaining 2 to 4 leaves on the cuttings can not only increase the photosynthesis of the cuttings, supplement nutrients, but also reduce the transpiration of the leaves, and maintain the water needed for life in the cuttings.

As a preferred solution of the present invention, the matrix is a mixture of peat and perlite, and the peat and perlite are uniformly mixed in a volume ratio of 1-2:1. After the peat and perlite are mixed evenly in a volume ratio of 1 to 2:1, the matrix has good permeability, which can increase the oxygen content of the matrix energy, which is beneficial to the growth of cuttings.

Preferably, the disinfectant is 800 times carbendazim, that is, a solution of carbendazim and water in a volume ratio of 1:800. The Damascus rose seedling raising technology of the present invention uses 800 times of carbendazim to disinfect the cuttings, the cuttings have a good disinfection effect and are not prone to diseases, and the disinfectant will not damage the vegetative organs of the cuttings, the cuttings have a high rooting rate and good root quality.

Preferably, the rooting agent is 50-200ppm IBA. Treat cuttings with 50-200ppm IBA, the rooting rate of cuttings is high, and the quality of root system is good. When the concentration of IBA is less than 50ppm, the concentration of rooting agent is low, the rooting amount of cuttings is few and the root system is short and thin; The root system is short and thin.

As a preferred solution of the present invention, during the post-insertion maintenance management process described in step (4), 800 times of carbendazim is sprayed every 7 days for disinfection. In a high-temperature and high-humidity environment, after the cuttings are sterilized by 800 times of carbendazim, generally no disease will occur in the cuttings within 7 days; from the 8th day after disinfection, the cuttings, damaged parts or new parts are prone to disease infection. Spraying 800 times carbendazim disinfection every 7 days can prevent the cuttings from being infected by diseases, and at the same time, it will not cause damage to the tissues and organs of the cuttings due to disinfection and excessive disinfection.

Compared with prior art, the beneficial effect of the present invention:

1. The method for growing seedlings of Rose Damask of the present invention is to insert the cuttings into the floating seedling raising tray, and the humidity of the matrix in the floating seedling raising tray can be adjusted by setting the depth at which the floating seedling raising tray is submerged into the water bed. Adjusting the humidity of the substrate by floating seedling trays can keep the humidity of the substrate within a stable range, so that the humidity of the growth environment of cuttings is stable, and there will be no large fluctuations in humidity changes. The rooting rate of cuttings is high, and the survival rate of cutting seedlings is high. high.

2. In the post-cutting maintenance management process, according to the growth characteristics of the four stages of cuttings development, the substrate humidity and air humidity suitable for the growth of cuttings are designed to maintain sufficient water in the cuttings, ensure the various life activities of the cuttings, and the rooting rate of the cuttings is high. , The survival rate of cutting seedlings is high.

Detailed ways

The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

In each embodiment and comparative example of the present invention, the measurement of the temperature and humidity is carried out by "Hong Kong Xima Thermo-Hygrometer AR827".

Example 1

The seedling raising method of the Damask rose of the present embodiment may further comprise the steps:

(1) Seedling bed treatment:

Mix peat and perlite evenly in a ratio of 1:1 by volume, and configure it as a matrix;

Put the prepared matrix into the floating seedling tray, the floating seedling tray is a seedling tray made of foam plastic, the seedling tray is divided into 60-100 slots, each slot bottom is provided with a through hole, The matrix is installed in the hole groove, and the thickness of the matrix is 6-7cm;

Then place the floating seedling tray on the water bed of the seedling pond, spray until the substrate is completely soaked, and the substrate can absorb the water in the water bed from the through hole at the bottom of each cave; The humidity of the substrate in the seedling tray, and at the same time adjust the temperature of the substrate by adjusting the water temperature of the water bed;

(2) Cutting treatment:

Before 9 o'clock in the morning, cut the semi-lignified twigs and transport them to the operation area in time. The operation area is located in the shade shed. Keep the surface of shoots moist;

Cut the above-mentioned semi-lignified twigs into cuttings with a length of 10-15 cm, the cuttings at the upper end are flat, and the cut surface at the lower end of the cuttings has an angle of 43-47° with the radial plane of the cuttings;

Keep 2-4 leaves on the cuttings;

Cut 50 cuttings as a group, put each group into 800 times of carbendazim and soak for 3 minutes after binding, then put the sterilized cuttings into 50ppm IBA and soak for 30 minutes, take out;

(3) Cuttings:

Use a wooden stick 0.5-2mm thicker than the cuttings to insert a hole in the matrix in the hole groove in step (1), the depth of the insertion hole is half of the matrix, about 3.5cm; insert the treated cuttings in step (2) into the matrix Insert the substrate into the hole and compact the matrix by hand, immediately turn on the spray equipment, and spray until the cuttings leaves are moist;

After all the cuttings are completed, use 800 times of carbendazim to sterilize the cuttings, seedling trays, and substrates; and adjust the temperature of the water bed in the seedling pond to 24-26°C and the air humidity in the seedling shed to 90%-100%;

(4) Maintenance and management after cutting:

Adjust the air temperature in the matrix and the seedling pond to be 20-30°C; adjust the light intensity received by the cuttings to be the light of natural sunlight through a sunshade net with a light transmittance of 90%;

During the maintenance and management process, the substrate humidity and the air humidity around the cuttings are adjusted according to the following four stages:

(a) On the 1st to 7th day after insertion, callus formation period: spray once every 10 minutes during the day for 15 seconds; spray once every 15 to 20 minutes at night for 20 seconds to keep a layer of water film on the leaves; float the seedlings in the tray The substrate is submerged in water for 2.8-3.2cm;

Detection: air humidity > 90%, substrate humidity is 70-80%;

(b) On the 8th to 15th day after inserting, the young root growth period: Spray once every 15 to 20 minutes, once for 15 seconds; keep the water film on the leaves larger than 2/3 of the leaf area; submerge the substrate in the floating seedling tray into the water by 2.4 to 2.8 cm;

Detection: air humidity > 90%, substrate humidity is 60-70%;

(c) On the 16th to 20th day after planting, the vigorous rooting period of the cuttings: start spraying after the water on the leaves has evaporated, once for 15 seconds; the substrate in the floating seedling tray is submerged in the water for 2.0 to 2.4 cm;

Detection: air humidity 70-90%, substrate humidity 50-60%;

(d) On the 20th to 30th day after insertion, the seedling rooting period is completed:

The seedling shed is ventilated, and at the same time, spray once every half an hour from 10:00 am to 3:00 pm, once for 15 seconds, and stop spraying at other times; the substrate in the floating seedling tray is submerged into the water by 2.0 to 2.4 cm;

Detection: the air humidity in the seedling shed is the same as the natural air humidity outside, and the substrate humidity is 50-60%.

Note: In the above maintenance and management process, the number of sprays and time intervals are designed under the conditions of strong sunshine and temperature higher than 25°C. When the intensity of sunshine and temperature are lower than 25°C, the number of sprays can be appropriately reduced to ensure the air humidity.

In the present embodiment, there are 70,000 cuttings of cuttings altogether, and the seedling period ends (the 30th day after inserting), and the rooting cuttings are 56,000, and the rooting rate of cuttings is 80%; 54,000 surviving cuttings, the survival rate of cuttings was 77%.

comparative example

The seedling raising method of the Damask rose of this comparative example, comprises the following steps:

(1) Seedling bed treatment:

Mix peat and perlite evenly in a ratio of 1:1 by volume, and configure it as a matrix;

Put the prepared matrix into the floating seedling tray, the floating seedling tray is a seedling tray made of foam plastic, the seedling tray is divided into 60-100 slots, each slot bottom is provided with a through hole, The matrix is installed in the hole groove, and the thickness of the matrix is 6-7cm;

Then place the floating seedling tray on the water bed of the seedling pond, spray until the substrate is completely soaked, and the substrate can absorb the water in the water bed from the through hole at the bottom of each cave; The humidity of the substrate in the seedling tray, and at the same time adjust the temperature of the substrate by adjusting the water temperature of the water bed;

(2) Cutting treatment:

Before 9 o'clock in the morning, cut the semi-lignified twigs and transport them to the operation area in time. The operation area is located in the shade shed. Keep the surface of shoots moist;

Cut the above-mentioned semi-lignified twigs into 10-15 cm long cuttings, the upper end of the cuttings is flat, and the cut surface of the lower end of the cuttings has an angle of 43° to 47° with the radial plane of the cuttings;

Keep 2 to 4 leaves on the cuttings;

Cut 50 cuttings as a group, put each group into 800 times of carbendazim and soak for 3 minutes after binding, then put the sterilized cuttings into 50ppm IBA and soak for 30 minutes, take out;

(3) Cuttings:

Use a wooden stick 0.5-2mm thicker than the cuttings to insert a hole in the matrix in the hole groove in step (1), the depth of the insertion hole is half of the matrix, about 3.5cm; insert the treated cuttings in step (2) into the matrix Insert the substrate into the hole and compact the matrix by hand, immediately turn on the spray equipment, and spray until the cuttings leaves are moist;

After all the cuttings are completed, use 800 times of carbendazim to sterilize the cuttings, seedling trays, and substrates; and adjust the temperature of the water bed in the seedling pond to 24-26°C and the air humidity in the seedling shed to 90%-100%;

(4) Maintenance and management after cutting:

Adjust the temperature of the substrate and the air between 20 and 30°C, and the light received by the cuttings is the light of natural sunlight through a sunshade net with a light transmittance of 90%;

Regularly check the thermometer and hygrometer in the nursery shed for the humidity of the substrate and the humidity in the nursery shed. When the air humidity is less than 70%, spray the cuttings for 20 seconds at a time; when the air humidity in the nursery shed is higher than 85%, reduce the ventilation of the nursery shed The air humidity in the nursery shed makes the air humidity in the nursery shed between 65% and 85%;

Adjusting the substratum in the floating seedling-raising tray to submerge 2.4 to 3.2 cm into the water; make the humidity of the substrate in the floating seedling-raising tray between 60 and 80%.

In this comparative example, there are 10,000 cuttings of cuttings altogether, and the seedling period ends (the 30th day after inserting), and the rooting cuttings are 5,000, and the rooting rate of cuttings is 50%; 4,000 surviving cuttings, the survival rate of cuttings 40%.

From the experimental data of embodiment 1 and comparative example, in embodiment 1, the rooting rate of cuttings is 80%, and the survival rate of cutting seedlings is 77%; while in the comparative example, the rooting rate of cuttings is 50%, and the survival rate of cuttings is 50%. The rate is 40%. In Example 1, the rooting rate of cuttings and the survival rate of cuttings are 60% and 92.5% higher than the rooting rate of cuttings of comparative examples and the survival rate of cuttings. In the method for growing seedlings of Damascus roses of the present invention, in the post-planting maintenance and management process, according to the growth characteristics of the four stages of cuttings development, the substrate humidity and air humidity suitable for the growth of cuttings are designed, so that the rooting rate of cuttings and the survival rate of cutting seedlings are significantly improved.

Further, in Example 1, the cuttings were maintained by means of raising seedlings by floating cuttings, and during the maintenance and management process, the detected substrate humidity was constant. It avoids the phenomenon that the cuttings lose water and die or the cuttings take root and rot due to the large fluctuation of surrounding water. Compared with the prior art, the survival rate of the cutting seedlings raised on the ridge box is 20%, and the survival rate of the cutting seedlings in Example 1 of the present invention can be increased to 77%. In the method for growing seedlings by floating cuttings of the present invention, by loading a substrate in a floating seedling raising tray, the humidity of the substrate is adjusted to be constant, so that the rooting rate of cuttings and the survival rate of seedlings of cutting seedlings are increased by nearly three times.

Claims (10)

1. a seedling-cultivating method for Damask Rose, comprises the maintenance management after the processing of (1) seedling bed, the processing of (2) cuttings, (3) cuttage, (4) cuttage, it is characterized in that:

The seedling bed of described step (1) is treated to: pack matrix into floating seedling tray, then floating seedling tray is placed on water bed, be sprayed to matrix and soak completely;

The cuttage of described step (3) is: by the matrix of floating seedling tray described in the cuttings inserting step (1) after step (2) processing, all after cuttage, with disinfectant to cuttings, matrix and floating seedling tray sterilization, regulating the temperature of nursery pond water bed is 20～30 ℃, regulates cuttings ambient air humidity to be greater than 90%.

2. seedling-cultivating method according to claim 1, is characterized in that: the maintenance management after described step (4) cuttage is to regulate described matrix and cuttings ambient air temperature to be 20～30 ℃; The intensity of illumination that cuttings is accepted is to shine the illumination that light transmittance is 90% sunshade net consecutive days;

By following four-stage, regulate soil humidity and cuttings ambient air humidity:

(a) insert latter 1st～7 days:

Humidity: air humidity > 90%, soil humidity is 70～80%;

(b) insert latter 8th～15 days:

Humidity: air humidity > 90%, soil humidity is 60～70%;

(c) insert latter 16th～20 days:

Humidity: air humidity > 70%, soil humidity is 50～60%;

(d) slotting rear after the 20th day: air humidity is identical with natural air humidity, and soil humidity still keeps 50～60%.

3. seedling-cultivating method according to claim 1 and 2, is characterized in that: described cuttings is semi-lignified spray.

4. seedling-cultivating method according to claim 3, is characterized in that: the long 10～15cm of described cuttings.

5. seedling-cultivating method according to claim 3, is characterized in that: described cuttings upper end otch is flat mouth, and there are 43 °～47 ° angles cuttings lower end otch tangent plane and cuttings sagittal plane.

6. seedling-cultivating method according to claim 3, is characterized in that: in described cuttings, retain 2～4 blades.

7. seedling-cultivating method according to claim 1 and 2, is characterized in that: described matrix is the peat composed of rotten mosses and perlitic mixture, and the described peat composed of rotten mosses mixes with the ratio that perlite is 1～2:1 by volume.

8. seedling-cultivating method according to claim 1 and 2, is characterized in that: described disinfectant is 800 times of carbendazim.

9. seedling-cultivating method according to claim 1 and 2, is characterized in that: the IBA that described root-growing agent is 50～200ppm.

10. seedling-cultivating method according to claim 1 and 2, is characterized in that: step (4) is described inserts in rear maintenance management process, every 800 times of carbendazim of spray in 7 days, cuttings is carried out disinfection.