CN115529953A - Cutting propagation method for sargentgloryvine leaflet - Google Patents
Cutting propagation method for sargentgloryvine leaflet Download PDFInfo
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G2/00—Vegetative propagation
- A01G2/10—Vegetative propagation by means of cuttings
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/15—Calcined rock, e.g. perlite, vermiculite or clay aggregates
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/28—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing peat, moss or sphagnum
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/40—Afforestation or reforestation
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Botany (AREA)
- Developmental Biology & Embryology (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a cutting propagation method of sargentgloryvine leaflet. The method is carried out by combining the cutting seedling raising bed with proper pre-treatment of the cutting slips and cutting management. The base of the cutting shoot is not easy to damage by using the cutting seedling bed, the cutting efficiency is improved, the cutting shoot obtains sufficient air and oxygen, and the base of the cutting shoot is easy to form callus to generate young roots, so that the survival rate is greatly improved; the seedlings cultivated by the method have developed root systems, strong stems and no plant diseases and insect pests, the seedlings grow fast and form early, the seedlings can be taken out of the nursery early, the cultivation period of the seedlings can be shortened, and the seedling cultivation purpose of early taking out of the nursery and benefiting is achieved; meanwhile, the labor input can be reduced, the mechanization level is improved, the production flow is simplified, the seedling production cost is effectively reduced, and the seedling efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of plant cultivation, and particularly relates to a method for cutting propagation of sargentgloryvine lobus.
Background
Sargentodoxa cuneata (hook. Et Arn.) planch.) is climbing shrub of Sargentodoxa cuneata of Sargentodoxa of Cornaceae, also named Sargentodoxa cuneata, pachysolen rupestris, sargentodoxa cuneata, callicarpa crura, etc., and has multiple branches, flowering stage of 3-9 months, and fruit stage of 5 months to 3 months in the next year. The red vine is distributed in provinces such as Guangdong, guangxi, hainan, fujian and Yunnan, grows in hills, mountain forests or bushes with the altitude of 100-600 meters, is a common vine plant in mountainous areas of south China, has bright red tender leaves and fruits with good landscape effect and high ornamental value in gardens, and can be developed and utilized as a three-dimensional greening plant. In addition, the Chinese materia medica records that the bark, leaves and roots of the Chinese materia medica are used as the medicine, the medicine names are lychee vine, lychee vine root and lychee vine, the medicine is bitter and astringent in taste and cool in nature, can be used as an external medicine, has the effects of clearing away heat and toxic materials, relieving swelling and pain and stopping bleeding, and is mainly used for treating diseases such as sore and furuncle, traumatic swelling and pain, traumatic hemorrhage and the like; the lychee vine root is sweet in taste, slightly pungent and warm in nature, has the effects of activating blood and stimulating the menstrual flow, reducing swelling and relieving pain and stopping bleeding, and is mainly used for treating amenorrhea, traumatic swelling and pain, traumatic bleeding and other symptoms. Experiments show that the extracts of all parts of the sargentgloryvine lobular sargentgloryvine stem have certain antioxidant capacity. The conclusion shows that the sargentgloryvine leaflet has great development value in the aspects of appreciation and medicinal utilization. At present, the sargentgloryvine lobus is still in a wild growth state, the natural growth speed is slow, the fruiting rate is low, and the germination rate is not high, so that the market demand is met by artificial breeding. The cutting seedling raising operation is simple, the period is short, and the excellent characters of the mother plant can be preserved, so that the development of the research on the rapid cutting propagation of the sargentgloryvine lobus has important significance for the development and the utilization of the sargentgloryvine lobus.
Disclosure of Invention
The invention aims to provide a method for cutting propagation of sargentgloryvine leaflet.
The invention relates to a method for cutting propagation of sargentgloryvine leaflet, which comprises the following steps:
taking a sargentgloryvine leaflet branch, soaking the base part of the branch in water for 6 hours, cutting the branch into a strip section which comprises more than two nodes and has the length of 15-20 cm as a cutting, dipping the base part of the cutting in 800-1000 times of diluent of 50% carbendazim wettable powder for 2-3 seconds, then airing, and soaking the base part of the cutting in 500mg/L of ABT-1 aqueous solution for 2 hours, wherein the depth of the soaking base part is 2-3 cm;
sterilizing a cutting medium in a cutting seedling bed 1 week before cutting, cutting the processed cutting shoot into the cutting medium with the cutting depth of 2-3cm, compacting the cutting medium, and thoroughly watering; spraying 3-4 times per day before the cutting shoots take root, and controlling the relative air humidity to be more than 90%; after the cutting shoots take roots, reducing the spraying times to 1-2 times per day, and controlling the relative humidity of air at 70% -80%; spraying 800-1000 times of diluent of 50% carbendazim wettable powder every 15 days; and (4) timely removing the fallen leaves and the blackened cutting slips, and transplanting the cutting slips after rooting and survival.
The branches are cut into strip sections which comprise more than two sections and are 15-20 cm long to serve as cutting slips, upper cutting openings are 0.5cm above the sections of the upper sections, the cutting openings are cut flat, lower cutting openings are 0.2cm below the sections of the lower sections, the cutting openings are cut into inclined planes, and 2-3 pairs of small leaves of compound leaves at the tops of the cutting slips, close to leaf stalks, are reserved to serve as nutrition leaves.
The cuttage matrix is prepared by mixing peat soil and perlite according to a volume ratio of 1:1.
The sterilizing treatment of the cuttage matrix in the cuttage seedling raising bed is to use 0.1 mass percent of carbendazim solution or 0.2 mass percent of KMnO 4 And spraying a cutting medium on the solution.
The cuttage seedling raising bed comprises a frame body, wherein a separation box body is arranged on the frame body, the separation box body forms a plurality of planting cavities, and the planting cavities are communicated with an air fertilizer supply device; a greenhouse film is covered above the separation box body, and a temperature and humidity control device is arranged in the greenhouse film; the temperature and humidity control device comprises a tap water connection port; the tap water connection port is communicated with a plurality of humidity sensing probes and atomizing micro-nozzles which are positioned in the greenhouse film through a humidity control switch; the air and fertilizer supply device comprises an oil-free air compressor, the oil-free air compressor is communicated with an air filter, the air filter is communicated with an air valve main switch, and the air valve main switch is respectively communicated with an air inlet end of the air and fertilizer supply mixer and a pesticide and fertilizer air valve switch through a one-way air valve; the drug fertilizer air valve switch is communicated with a drug fertilizer storage tank, and the tank body of the drug fertilizer storage tank is communicated with the liquid inlet end of a gas-liquid mixer; a discharge port of the gas-liquid mixer is communicated with a gas-fertilizer main pipe, and the gas-fertilizer main pipe is communicated with a plurality of permeation pipes corresponding to the planting cavities; a breathable and water-permeable layer is filled between the frame body and the separation box body; the breathable water seepage layer comprises a gauze layer at the bottom and a gravel layer above the gauze layer, and a cuttage matrix layer is laid above the breathable water seepage layer.
Preferably, the fertile hand switch of dosing is installed on the fertile storage tank of dosing, equal communication connection director of humidity inductive probe, humidity control switch and oil-free air compressor machine, the fertile trunk line end of giving gas install the normally open breather valve.
The invention has the following beneficial effects:
the cutting seedling bed is not easy to damage the base of the cutting slips, the cutting efficiency is improved, the cutting slips obtain sufficient air and oxygen, and the base of the cutting slips is easy to form callus to generate radicles, so that the survival rate is improved. The seedlings cultivated by the method have developed root systems, strong stems and no plant diseases and insect pests, the seedlings grow fast and form early, the seedlings can be taken out of the nursery early, the cultivation period of the seedlings can be shortened, and the seedling cultivation purpose of early taking out of the nursery and benefiting is achieved; meanwhile, the labor input can be reduced, the mechanization level is improved, the production flow is simplified, the seedling production cost is effectively reduced, and the seedling efficiency is improved.
Drawings
FIG. 1 is an overall configuration view of a cutting seedling bed according to example 1;
FIG. 2 is a frame structure view of a bed for raising seedlings by cutting according to example 1;
FIG. 3 is a structural view of an air fertilizer supply device of the cutting seedling raising bed of embodiment 1;
FIG. 4 is a structural view of a temperature and humidity control device of the cutting seedling raising bed in example 1;
FIG. 5 is a structural view of a gas-liquid mixing device of the bed for raising seedlings by cutting according to example 1;
FIG. 6 is a schematic structural view of a frame body of the cutting seedling raising bed of embodiment 1;
FIG. 7 is a schematic view showing the structure of the air and water permeable layer of the bed for raising seedlings by cutting in example 1;
wherein the reference numbers: 1: an oil-free air compressor; 2: a controller; 3: an air filter; 4: a main switch of the air valve; 5: a one-way air valve; 6: a fertilizer gas valve switch for administration; 7: a dosing fertilizer storage tank; 8: a manual switch for the pesticide fertilizer; 9: a tap water connection port; 10: a humidity control switch; 11: a humidity sensing probe; 12: atomizing the micro-spray head; 13: a permeate tube; 14: separating the box body; 15: a greenhouse film; 16: a normally open vent valve; 17: a main air fertilizer supply pipe; 18: a frame body; 181: enclosing a frame; 182: a support leg; 183: a grid frame; 184: a gauze layer; 185: a gravel layer; 186 cutting a substrate layer; 19: a gas-liquid mixer; 20: and (5) a tank body.
Fig. 8 shows a control group that was subjected to cuttage using the seedling raising bed for cuttage of example 1.
Fig. 9 is a treatment group using conventional cutting seedbed cuttage.
Fig. 10 is a comparison of the effect of cutting seedlings obtained after 90 days of cutting using the cutting seedling bed of example 1 and the conventional cutting seedling bed.
Detailed Description
The following examples are further illustrative of the present invention and are not intended to be limiting thereof.
The method for cutting and propagating the sargentgloryvine lobus is realized by combining the cutting seedling bed in the embodiment 1.
Example 1
Referring to fig. 1, 2, 3 and 4, the cutting seedling raising bed of the present embodiment includes a frame body 18, and the frame body 18 is provided with a separating box body 14, an air and fertilizer supply device and a temperature and humidity control device. The partition box body 14 forms a plurality of planting cavities which are communicated with an air fertilizer supply device; a greenhouse film 15 is covered above the separation box body, and a temperature and humidity control device is arranged in the greenhouse film. The temperature and humidity control device comprises a tap water connection port 9; the tap water connection port 9 is communicated with a plurality of humidity sensing probes 11 and atomizing micro-nozzles 12 which are positioned in the greenhouse film through a humidity control switch 10. The air and fertilizer feeding device comprises an oil-free air compressor 1, wherein the oil-free air compressor 1 is communicated with an air filter 3, the air filter 3 is communicated with an air valve main switch 4, and the air valve main switch 4 is respectively communicated with an air inlet end of an air and liquid mixer 19 and an air valve switch 6 for feeding fertilizer through a one-way air valve 5; the dosing fertilizer air valve switch 6 is communicated with a dosing fertilizer storage tank 7, and a tank body 20 of the dosing fertilizer storage tank 7 is communicated with a liquid inlet end of a gas-liquid mixer 19; a discharge port of the gas-liquid mixer 19 is communicated with a gas-fertilizer main pipe 17, and the gas-fertilizer main pipe 17 is communicated with a plurality of permeation pipes 13 corresponding to the planting cavities; and a breathable and water-permeable layer is filled between the frame body 18 and the separation box body 14. The air-permeable and water-permeable layer comprises a gauze layer 184 at the bottom and a gravel layer 185 above the gauze layer, and a cuttage substrate layer 186 is laid above the air-permeable and water-permeable layer. The dosing fertilizer storage tank 7 is provided with a dosing fertilizer manual switch 8, a humidity sensing probe 11, a humidity control switch 10 and an oil-free air compressor 1 are all in communication connection with a controller, and the tail end of an air-fertilizer main pipe 17 is provided with a normally open vent valve 16.
Referring to fig. 2, fig. 2 is a frame structure diagram of a cutting seedling bed, the seedling bed frame 18 is overhead and is about 50cm high from the ground, the problem of poor water permeability of the matrix is solved, the contact surface of the matrix and the air is effectively increased, particularly, the bottom surface is in contact with the air, and the air permeability of the matrix is improved.
Referring to fig. 3, fig. 3 is a structural diagram of an air and fertilizer supply device of a cuttage seedling raising bed, and the device comprises an air and fertilizer supply main pipe 17, a permeation pipe 13 and a normally open vent valve 16, wherein the permeation pipe 13 is a DN18 buried pollution-free permeable micro-moistening pipe, a two-phase gas-liquid mixture flows into the permeation pipe 13 through the air and fertilizer supply main pipe 17 and directly acts on the roots of branches in an aerial fog mode to complete fertilization operation. The permeation tube 13 is a DN18 buried pollution-free permeable micro-wetting tube.
Referring to fig. 4, fig. 4 is a structural diagram of a temperature and humidity control device of a cutting seedling bed, which includes a tap water pipe 9, a humidity control switch 10, a humidity sensing probe 11 and an atomizing micro-nozzle 12, and plays a role in controlling temperature and humidity. The controller 2 is a VLAGA-1 humidity controller. Referring to fig. 5, fig. 5 is a structural diagram of a gas-liquid mixing device of a cuttage seedling raising bed, and the device comprises a gas-liquid mixing pipeline and a controller 2, wherein the controller 2 controls the starting and stopping of operation, and the gas-liquid mixing pipeline is used for mixing liquid fertilizer and air to form a two-phase gas-liquid mixture with a certain proportion.
Referring to fig. 6, the frame body 18 includes an enclosing frame 181, legs 182 are fixed to four corners of the enclosing frame 181, and a grid frame 183 is fixed to the bottom of the enclosing frame 181. The grid frame 183 of the frame body 18 supports the air-permeable and water-permeable layer and the cutting medium, and the support legs 182 keep the air-permeable and water-permeable layer and the cutting medium in a suspended state. The size of the shelf body in the embodiment is 50cm multiplied by 200cm, wherein the height of the supporting leg is 30cm.
Referring to fig. 7, the gauze layer 184 and the gravel layer 185 of the permeable-to-air layer serve as a soil and water retention layer and prevent the loss of the cutting medium 186 while maintaining the air-permeable and water-permeable properties of the bottom.
Example 2
1 materials and methods
1.1 selection of materials
The test material is taken from a mature plant of the good-growing lobular sargentgloryvine stem in village of shortbread mash in Boruocounty, huizhou, guangdong province, and branches without plant diseases and insect pests are cut. Soaking the base part of the branch in water for 6h, shearing a cutting, shearing a section which comprises more than two sections and is 15-20 cm long as a cutting slip, shearing an upper cut 0.5cm above the uppermost section of the section, shearing the lower cut 0.2cm below the lowermost section of the section, shearing the cut into an inclined plane, and keeping 2-3 pairs of small leaves of the top compound leaves of the cutting slip close to the leaf stalk as nutrient leaves. Bundling 10 cut cuttings into a small bundle, dipping the base of the small bundle in 800 times of diluent of 50% carbendazim wettable powder for 2-3 s, and airing for later use; then the cutting slips are soaked in 500mg/L ABT-1 aqueous solution for 2 hours, and the depth of the soaking base is 2-3cm.
1.2 cuttage method
Spraying a carbendazim solution with the mass fraction of 0.1% on a seedbed and a cuttage matrix for sterilization treatment 1 week before cuttage. And (3) cutting the well-treated cutting slips on a seedling raising bed for culture, inserting holes in a cutting medium by using bamboo branches, wherein the row spacing of the cutting plants is 5cm multiplied by 10cm, and the depth is about 2-3cm. After inserting, the cuttage substrate is compacted and watered thoroughly. Spraying 3-4 times and once for 10s before the cutting takes root every day, controlling the relative air humidity to be more than 90%, and after the cutting takes root, reducing the spraying times and the water spraying time to 1-2 times and once for 10s every day, and controlling the relative air humidity to be 70-80%. Spraying 800 times of diluent of 50% carbendazim wettable powder every 15 days. The fallen leaves and the black cutting slips need to be removed in time. The whole cuttage process does not need fertilization, and the temperature is controlled at 20-25 ℃. After the cuttage roots survive, transplanting is carried out, and meanwhile, management such as water, fertilizer, shading and the like is paid attention.
1.3 design of the experiment
The experiment was carried out in 2021, 3 months and 24 days in a greenhouse of the institute of forestry and science, guangdong province. A comparative study was conducted using the cutting seedling bed of example 1 (treatment group, fig. 8) and a conventional cutting seedling bed (control group, fig. 9). The cutting medium is prepared from (1) cleaned river sand, (2) yellow core soil, (3) peat soil and perlite (the volume ratio is 1:1).
The test was repeated 3 times, 10 in each group for a total of 300. And (3) regularly observing the growth condition of the cutting slips after cutting (taking 7d as a period), and counting and analyzing the damage number, the rooting number, the root length, the new branch number and the feather number of all treated roots after 3 months.
2 results and analysis
After 90 days of cuttage, the damage rate and the rooting rate of the treatment group and the control group are different under the same condition, the rooting rate of the sinomenium lobule in three matrixes is higher than that of the control group, each index of the cutting slips of the matrix peat soil and the perlite (the volume ratio of 1:1) is higher than that of the other two matrixes, and the cuttage results (figure 10) of the seedling bed and the conventional cuttage seedling bed of the embodiment 1, which adopt the peat soil and the perlite (the volume ratio of 1:1) as the matrixes, are analyzed.
2.1 influence of two kinds of cutting seedbeds on damage rate and survival rate of cutting shoots
As can be seen from table 1, compared with the conventional cutting seedbed, the cutting seedling bed in the embodiment 1 obviously reduces the damage rate of the cutting shoot, improves the rooting rate of the cutting shoot, reduces the damage rate of the cutting shoot by 60%, and achieves the rooting rate of 86.67%; the base of the cutting shoot of the cutting seedling bed in the embodiment 1 has no damage trace, and the root system grows well; the damage characteristic of the base part of the cutting shoot adopting the conventional cutting seedbed is browned and rotten when the damage characteristic is serious.
TABLE 1 damage rate and survival rate of cuttings of two cutting seedbeds
2.2 Effect of two kinds of cutting seedbeds on the root system and new branch growth characteristics of cutting
As can be seen from table 2, the number of roots, the root length, and the growth of new shoots of the cuttings obtained by using the cutting seedling bed of example 1 were all higher than those of the conventional cutting seedling bed, no root was found after three months of cuttings of the conventional cutting seedling bed, the average number of roots of the innovative cutting seedling bed was 3.3, and the average root length was 10.4cm. The number of branches and the average number of feathers obtained by cutting with the cutting seedling bed in the embodiment 1 are respectively improved by 28.6 percent and 7.0 percent compared with the conventional cutting seedling bed, and new branches grow vigorously.
TABLE 2 root system and growth characteristics of new shoot of cutting shoot of two cutting seedbeds
The cutting seedling raising bed in the embodiment 1 of the invention has the advantages that the base part of the cutting shoot is not easy to damage, the cutting efficiency is improved, the cutting shoot obtains sufficient air and oxygen, and the base part of the cutting shoot is easy to form callus to generate radicles, so that the survival rate is improved. The conventional cutting seedbed is easy to cause browning and even decay of the base part of the cutting shoot, is not favorable for forming callus, and is difficult to induce the generation of the roots of the sargentgloryvine lobular stems. The root system is the foundation of seedling growth, is responsible for the absorption and transportation of soil moisture and mineral ions, and also influences the seedling transplanting survival rate and the growth amount.
The seedlings cultivated by the method have developed root systems, strong stems and no plant diseases and insect pests, the seedlings grow fast and form early, the seedlings can be taken out of the nursery early, the cultivation period of the seedlings can be shortened, and the seedling cultivation purpose of early taking out of the nursery and benefiting is achieved; meanwhile, the labor input can be reduced, the mechanization level is improved, the production flow is simplified, the seedling production cost is effectively reduced, and the seedling efficiency is improved.
Claims (6)
1. A method for cutting propagation of Sargentodoxa cuneata, which is characterized by comprising the following steps:
s1, taking a twig of the Sargentodoxa cuneata, soaking the base of the twig in water for 6 hours, cutting the twig into strip sections which comprise more than two nodes and are 15-20 cm in length to serve as cutting slips, dipping the base of the cutting slips in 800-1000 times of diluent of 50% carbendazim wettable powder for 2-3 seconds, then drying the cutting slips, soaking the base of the cutting slips in 500mg/L ABT-1 aqueous solution for 2 hours, and soaking the base for 2-3cm in depth;
s2, sterilizing a cutting medium in a cutting seedling bed 1 week before cutting, cutting the processed cutting shoot into the cutting medium, wherein the cutting depth is 2-3cm, compacting the cutting medium, and thoroughly watering; spraying 3-4 times per day before the cutting shoots take root, and controlling the relative air humidity to be more than 90%; after the cutting shoots root, reducing the spraying frequency to 1-2 times per day, and controlling the relative air humidity to be 70% -80%; spraying 800-1000 times of diluent of 50% carbendazim wettable powder every 15 days; and (4) timely removing the fallen leaves and the blackened cutting slips, and transplanting the cutting slips after rooting and survival.
2. The method according to claim 1, wherein the branches are cut into strips with length of 15-20 cm and more than two nodes as cuttings, the upper cut is 0.5cm above the node of the upper node, the cut is cut flat, the lower cut is 0.2cm below the node of the lower node, the cut is cut into inclined planes, and 2-3 pairs of small leaves of the compound leaves at the top of the cuttings, which are close to the leaf stalk, are reserved as the nutritive leaves.
3. The method of claim 1, wherein the cutting substrate is prepared by mixing peat soil and perlite in a volume ratio of 1:1.
4. The method as claimed in claim 1, wherein the sterilizing treatment of the cutting medium in the cutting seedling raising bed is 0.1 mass percent of carbendazim solution or 0.2 mass percent of KMnO 4 And spraying a cutting medium on the solution.
5. The method according to claim 1, wherein the cutting seedling raising bed comprises a frame body, a separation box body is mounted on the frame body, the separation box body forms a plurality of planting cavities, and the planting cavities are communicated with an air fertilizer supply device; a greenhouse film is covered above the separation box body, and a temperature and humidity control device is arranged in the greenhouse film; the temperature and humidity control device comprises a tap water connection port;
the tap water connection port is communicated with a plurality of humidity induction probes and atomizing micro-nozzles which are positioned in the greenhouse film through a humidity control switch; the air and fertilizer supply device comprises an oil-free air compressor, the oil-free air compressor is communicated with an air filter, the air filter is communicated with an air valve main switch, and the air valve main switch is respectively communicated with an air inlet end of the air and fertilizer supply mixer and a pesticide and fertilizer air valve switch through a one-way air valve; the drug fertilizer air valve switch is communicated with a drug fertilizer storage tank, and the tank body of the drug fertilizer storage tank is communicated with the liquid inlet end of a gas-liquid mixer; a discharge port of the gas-liquid mixer is communicated with a gas-fertilizer main pipe, and the gas-fertilizer main pipe is communicated with a plurality of permeation pipes corresponding to the planting cavities; a breathable and water-permeable layer is filled between the frame body and the separation box body; the breathable water seepage layer comprises a gauze layer at the bottom and a gravel layer above the gauze layer, and a cuttage matrix layer is laid above the breathable water seepage layer.
6. The method according to claim 1, wherein a manual dosing fertilizer switch is installed on the dosing fertilizer storage tank, the humidity sensing probe, the humidity control switch and the oil-free air compressor are all in communication connection with a controller, and a normally open vent valve is installed at the tail end of the air-feeding fertilizer main pipe.
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