CN112616543A - Landscaping utilization method for large-size cinnamomum camphora field seedlings - Google Patents
Landscaping utilization method for large-size cinnamomum camphora field seedlings Download PDFInfo
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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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
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- A—HUMAN NECESSITIES
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- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
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- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
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- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
- A01G24/25—Dry fruit hulls or husks, e.g. chaff or coir
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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
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
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- A01G7/00—Botany in general
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- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
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- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/12—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing a —O—CO—N< group, or a thio analogue thereof, neither directly attached to a ring nor the nitrogen atom being a member of a heterocyclic ring
- A01N47/14—Di-thio analogues thereof
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- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
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- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/34—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the groups, e.g. biuret; Thio analogues thereof; Urea-aldehyde condensation products
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Abstract
The invention relates to a method for utilizing large-size cinnamomum camphora seedlings in south China, which comprises the following steps: selecting trees, girdling, treating wounds, wrapping wounds, maintaining and managing, lifting seedlings and planting trunk parts, and preferably, the method also comprises the steps of pile scene manufacturing; by using the method, the large-size cinnamomum camphora seedlings can be used for landscaping after being treated for about four months, the cultivation time of the seedlings is shortened by nearly two months compared with that of the conventional cinnamomum camphora seedling with broken roots, the vitality is very strong because the newly induced lateral roots and capillary roots are used, and the water and fertilizer can be absorbed by the root system immediately after the seedlings are planted, so that the overall survival rate is more than 90% as long as the seedlings are normally maintained.
Description
Technical Field
The invention relates to the technical field of tree transplanting, in particular to a landscaping utilization method for large-size cinnamomum camphora seedlings.
Background
In recent years, the application of big tree transplanting in urban greening is increasing, if the transplanting is successful, a greening effect can be formed quickly, good environmental benefits are obtained, but if the transplanting fails, great waste of manpower and material resources can be caused.
The camphor is a evergreen arbor, the crown of which is developed, the branches and leaves of which are luxuriant, has special fragrance, has certain driving effect on mosquitoes, and is an important garden tree species.
Due to the construction period of the greening engineering and other objective reasons, the cinnamomum camphora trees are constructed and planted at a high temperature period in many times, in order to guarantee higher survival rate, large-sized seedlings (phi is more than or equal to 20) of the cinnamomum camphora trees are generally subjected to root breaking treatment for more than half a year of root breaking seedlings, but the root breaking seedlings are higher in price which is usually more than 2-3 times of the price of ground seedlings, the root breaking treatment time is longer, and the cost of the greening engineering can be greatly increased. However, if the seedlings with mud balls are directly used, the size of the mud balls is limited due to the consideration of the weight and the economical efficiency of transportation and hoisting, too many root systems cannot be reserved, and because the root system is not broken, capillary roots and lateral roots are too few, the water absorbing capacity is weak, and the transpiration effect of the seedlings in a high-temperature period is vigorous, the root system of the seedlings cannot absorb enough water consumed by the overground part, so that the newly planted camphor trees have weak germination power or the seedlings wither after germination, and a large amount of waste trees with dead branches or even the whole seedlings die. If a large-size camphor tree without mud balls is used, the camphor tree is difficult to survive no matter what season the camphor tree is planted.
Disclosure of Invention
Based on the prior art, the invention provides a method for utilizing large-specification cinnamomum camphora seedlings in south China.
One of the objects of the present invention is: through a series of measures, the trunk part of the cinnamomum camphora tree is cultivated into a plant similar to a seedling with a broken root, a large number of lateral and capillary roots are provided, the root system activity is vigorous, the planting survival rate in a high temperature period is high, the problem of high cost in using the cinnamomum camphora seedling with a broken root is solved, and the survival rate of transplanting the cinnamomum camphora in the high temperature period can be improved.
The second object of the present invention is: through a series of measures, one camphor tree can be cultivated into two plants, wherein the trunk part is cultivated into a plant similar to a root-broken seedling, and the rest stumps are cultivated into a stake scene. One camphor tree is cultivated into two camphor trees, so that the utilization rate of camphor tree seedling resources is improved.
The technical scheme adopted by the invention is as follows:
a utilization method of large-size cinnamomum camphora seedlings in south China comprises the following steps:
1) selecting trees: selecting trees with the diameter at breast height of 20-40cm, vigorous growth, branch points of more than 2 meters, no obvious plant diseases and insect pests, no obvious cracking trace of barks, normal tree shape and no large amount of dead branches;
2) and girdling: directly and annularly peeling off a circle of barks at a position 50-70cm away from the ground of a trunk, wherein the width is about 10cm, the thickness is 0.5cm-1cm, and the phloem of the annular part needs to be completely removed to reach the xylem;
3) and wound treatment: after the wound is girdled, the girdled part is immediately sprayed with rooting bactericide, and the rooting bactericide is sprayed thoroughly to the extent that the liquid medicine flows downwards.
4) And wound wrapping: after the sterilization rooting agent is sprayed, the wound is wrapped by moist soilless substrates such as moss or coconut chaff, the wound needs to be completely wrapped, the wrapping thickness is 2-2.5 times of the breast diameter of the tree, the substrates are wrapped by films, and holes are punched on the films; pouring the wrapping matrix for one time to permeate water;
5) and maintenance management: opening the film twice every 30 days, watering the wrapping matrix once, and watering the sterilization rooting agent once, wherein the matrix is watered thoroughly for three months; (because the film is provided with the air holes, the film is not required to be worried about water accumulation and root rot inside, the film is wrapped again after water is poured, a small amount of root systems can be seen to be developed about half a month, and a large amount of root systems can be developed about one month.)
6) And lifting seedlings: after 3 months (the root system in the girdling substrate grows vigorously), pouring 800 times of urea and 1200 times of potassium dihydrogen phosphate compound fertilizer into the wrapping substrate once, continuing to grow the root system, pouring clear water once after half a month, and then starting seedling lifting after half a month, (if the root system grows slowly in winter, the root system can be properly prolonged for half a month to one month), sawing off the tree about 2-3 cm below the support frame, not damaging the new root system, immediately removing branches above three-level branches of the sawed tree, and removing all leaves of the whole plant; transporting the tree to a planting site;
7) and planting the main stem part.
Preferably, the specific formula of the rooting bactericide in the step 3) is 800 times of mancozeb, 1000 times of thiophanate-methyl, 40ppm of potassium indolebutyrate and 120ppm of sodium naphthaleneacetate. The four medicaments are mixed together, wherein the first two medicaments are protective and therapeutic bactericides, and the second two medicaments are rooting inducers.
Preferably, the step 4) further comprises clamping the tree body below the wrapping matrix by four wood rods to form a # -shaped base for supporting the weight of the matrix.
Preferably, the film is a colorless transparent film, the aperture of the holes on the film is about 1mm, and the aperture density is 1/cm2. The holes on the film are used for ventilating and draining water, and dark films are not used, especially black films which absorb heat in dark colorsThe temperature in the film is too high to influence the growth of the root system, the colorless and transparent film can directly observe the growth of the plant root system, and the next step of measures can be conveniently determined according to the state of the root system.
Preferably, the step 5) of maintenance management further comprises: after the wound is wrapped in the step 4), pouring the mixed solution of 600 times of urea and 1000 times of monopotassium forest phosphate once for the soil part where the camphor trees grow, and pouring the mixed solution of 600 times of urea and 1000 times of monopotassium forest phosphate once after 1 month; watering clear water once after 2 months, and watering a mixed solution of 600 times of urea and 1000 times of forest monopotassium phosphate once after 3 months; after 4 months, clear water is poured once. Sprout tillers grow out under the girdling belt and are reserved for cultivating the cinnamomum camphora stake scene.
Preferably, in the step (7), the lowest part of the film wrapping the substrate is removed when the bottom of the tree is in contact with the bottom of the planting hole quickly during planting, all the films are removed after the tree is in contact with the planting hole completely, (the wrapping substrate is prevented from falling off to cause water loss of the root system), and then the soil is filled normally for planting, and root water is poured.
Preferably, the step (7) further comprises: the trees are supported, the brace bars are nailed into the soil for more than 0.5 m, and four-corner or six-corner supports are adopted. (therefore, the root-broken seedling produced by the method does not have a real soil ball, and the root system is wrapped by light moss and coconut chaff, so that the seedling is easy to fall down, and the seedling is supported to be beaten more firmly).
Except the two points, the planting mode of the seedlings is consistent with that of normal camphor tree root cutting seedlings.
Preferably, the method further comprises the steps of: cutting off the trunk part, and using the rest part for cultivating into a stake scene, wherein the trunk part is subjected to ring peeling before the trunk part is subjected to ring peeling, so that the lower surface of a ring peeling belt is induced to generate sprouts, the sprouts can naturally grow in the first 6 months after growing, and when the number of the sprouts on a stump is less than or equal to 3 after 6 months, pinching treatment is carried out on the grown sprouts, so that more branches are promoted to grow; when the number of the tillers is more than 3, pinching treatment is carried out after half a year; shaping once every month, wherein the shaping principle is to guide branches to grow to the positions of the crown vacancy, and the pruning and the copper wire or aluminum wire winding method are combined; when the crown width of the newly grown branch meets the requirement, the root cutting is started, the root cutting range is 5 times of the breast diameter by a circular root cutting method, the root cutting depth is 50-60cm, the root cutting is carried out twice, 1/2 is cut each time, the interval is three months, and the seedling can be lifted after two months, so that the method is used for landscaping.
Preferably, the making of the piling scene further comprises: after the trunk is cut off, the soil of the root system of the stump of the camphor tree is subjected to 600 times of urea in the first month, 1000 times of forest potassium dihydrogen phosphate solution and clear water in the second month, and the circulation is carried out for two months until the stump is lifted.
The method is suitable for construction and planting in a high temperature period (the highest temperature is more than or equal to 30 ℃).
The invention has the following beneficial effects:
by using the method, the large-size cinnamomum camphora seedlings can be used for landscaping after being treated for about four months, the cultivation time of the seedlings is shortened by nearly two months compared with that of the conventional cinnamomum camphora seedling with broken roots, the vitality is very strong because the seedlings are newly induced lateral roots and capillary roots, and the roots can absorb water and fertilizer immediately after being planted, so that the overall survival rate is over 90 percent as long as the seedlings are normally maintained, and the roots are soilless substrates such as moss coconut chaff, the weight is light, and the transportation is convenient. The method can cultivate one camphor tree into two trees, one tree is similar to a normal tree with a broken root seedling, and the other part is made into a stake scene, so that the method also has very high landscape value and economic value. The method can greatly improve the utilization rate of the large-size camphor trees and has great application prospect.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The invention selects the regions:
and (3) producing the field seedlings: the soil for the seedlings to grow in Ingde City (county-level city) of Qingyuan city of Guangdong province is red soil, the annual average maximum temperature is 27 ℃, and the annual average maximum temperature is more than 30 ℃ in 5-10 months.
And (3) seedling transplanting: in the high key area of Zhaoqing city in Guangdong city, the transplanting field of the seedlings is yellow red soil, the average maximum temperature of the whole year and day is 27 ℃, and the average maximum temperature of the whole year and day is more than 30 ℃ within 5-10 months.
Example 1: 27 cinnamomum camphora seedlings are selected in Yinde city in 2019, 3 and 15 days, the chest diameter is different from 21-37 cm, the seedlings grow vigorously, the branch point is more than 2 meters, no obvious plant diseases and insect pests exist, no obvious cracking trace exists on the bark, the tree shape is normal, and no large number of dead branches exist;
girdling: directly and annularly peeling off a circle of barks at a position 50-70cm away from the ground of a trunk, wherein the width is about 10cm, the thickness is 0.5cm-1cm, and the phloem of the annular part needs to be completely removed to reach the xylem;
wound treatment: after the wound is girdled, a rooting bactericide is sprayed on the girdled part immediately, and the specific formula of the rooting bactericide is 800 times of mancozeb, 1000 times of thiophanate-methyl, 40ppm of potassium indolebutyrate and 120ppm of sodium naphthaleneacetate; the spray is sprayed thoroughly to the extent that the liquid medicine flows downwards.
Wrapping the wound: after the sterilization rooting agent is sprayed, the wound is wrapped by moist soilless substrates such as moss or coconut chaff, the wound needs to be completely wrapped, the wrapping thickness is 2-2.5 times of the breast diameter of the tree, the substrates are wrapped by a colorless transparent film, and holes are punched on the film; the aperture of the hole is about 1mm, and the aperture density is 1/cm2. The tree body is clamped by four wood rods below the wrapping matrix to form a # -shaped base for supporting the weight of the matrix. And pouring the wrapping matrix once to be permeable.
For wrapping matrix treatment of girdling:
and opening the film in 2019, 3, 30 months and pouring clean water once.
And opening the film in 2019, 4, 15 and pouring the rooting bactericide once.
And opening the film in 2019, 4, month and 30, and pouring clear water once.
And opening the film in 2019, 5, 15 and pouring the rooting bactericide once.
And opening the film in 2019, 5 months and 30 days, and pouring clean water once.
And opening the film in 2019, 6 months and 15 days, and pouring the rooting bactericide once.
Opening the film in 2019, 6 months and 30 days, opening the film, pouring 800 times of urea and 1200 times of monopotassium phosphate once.
And in 2019, the film is opened for pouring clean water once in 7, 15 and 7 months.
And (3) water and fertilizer treatment of camphor root soil:
urea of 600 times and a potassium dihydrogen phosphate solution of 1000 times are poured once in 2019, 3, 15 and 15 days.
Urea of 600 times and a potassium dihydrogen phosphate solution of 1000 times are poured once in 2019, 4 months and 15 days.
And 5, month and 15 days in 2019, pouring clean water once.
Urea of 600 times and a potassium dihydrogen phosphate solution of 1000 times are poured once in 6 months and 15 days in 2019.
And 4, pouring clear water once in 7, 15 and 2019.
And (3) taking out seedlings 6 o' clock in 3.8.2019, sawing the camphor trees about 2-3 cm below the supporting frames, removing branches with more than three levels of branches, smearing wound healing agent on wounds, smearing the cut parts of the main trunk, reserving the supporting frames, and transporting the supporting frames to Zhaoqing city for planting the camphor trees in the next morning. Digging holes, seeding, filling soil, supporting, winding moisture-keeping cloth on the tree body, watering root-fixing water, and carrying out infusion on the tree body for normal maintenance. After one year, only one tree dies, two trees grow weakly, one of the trees is seriously damaged and loses landscape value, and the other tree has partial crown and has landscape value. The survival rate is 92%.
Pile scene making
After the trunk is cut off, the soil of the root system of the stump of the camphor tree is subjected to 600 times of urea in the first month, 1000 times of forest potassium dihydrogen phosphate solution and clear water in the second month, and the circulation is carried out for two months until the stump is lifted.
The stump part is left in situ and allowed to grow naturally, the sprouts growing from the stumps have the height of nearly 2 meters in 26 days 1 month in 2020, the stumps are uniformly subjected to terminal bud removal treatment, and the trend of branches is corrected by using copper wires, so that the whole crown becomes symmetrical. Carrying out first root cutting in 2-15 days of 2020, carrying out second root cutting in 5-15 days of 2020, carrying out seedling lifting in 8-21 days of 2020, wherein the radius of the soil ball is larger than that of the root cut by 1/3, transporting the soil ball back to a nursery to manufacture container seedlings, and carrying out primary shaping in each month during the period, and slightly adjusting branches. The phenomenon of plant death does not occur by 11 months in 2020, and the sprouting branches grow well and are still in continuous shaping cultivation.
Comparative example: planting field seedling with soil ball
Because the risk of planting the cinnamomum camphora seedlings in the high-temperature period is higher, only 9 trees are selected to be planted by the seedlings, and because the age of the tree is larger, the vitality of the tree body is reduced, and because the breast diameter of the selected cinnamomum camphora is 18-25cm, a larger size is not selected.
Filling water into the root soil of the camphor trees once from 8 and 6 months in 2019 to increase the cohesive force of the soil and prevent mud balls from lumping when seedlings are lifted, lifting the seedlings 6 o' clock in 10 and 8 months in 2019, trimming the tree bodies, removing branches above three-level branch points, and smearing a healing agent on the wounds. Then digging mud balls which are about 7 times of the breast diameter, sawing thicker roots by using a saw when digging lumps to prevent the soil balls from scattering when the roots are broken, binding the dug mud balls by using a straw rope to be firm, spraying moisture on the tree body, then loading the tree body, and transporting the tree body to the city of Zhaoqing for planting the tree in the next morning. According to the normal planting process, digging holes, putting seedlings, filling soil, supporting, winding moisture-preserving cloth on the tree body, pouring root fixing water, carrying out tree body infusion, and carrying out normal maintenance. After 1 year, 4 trees died, another two trees were severely disabled with few live branches, lost ornamental value, and removed. The survival rate is about 44 percent.
The comparison between the embodiment and the comparative example shows that the survival rate of the seedlings planted in the camphor field with the soil balls in the high-temperature period is low, the whole plants are easy to die, the growth period of the large-size camphor trees is long, generally, one camphor tree with the diameter at breast height of 25cm needs to grow for more than 10 years, and the seedlings planted in the high-temperature period have high death risk and can cause great waste. By using the method, a large number of capillary roots are induced, the water absorption capacity of the plants is increased, so that the water supply of the vigorous transpiration of the plants in the high-temperature period can be ensured, the survival rate of the seedlings of the cinnamomum camphora in the high-temperature period is greatly improved, meanwhile, the stumps at the lower part of the trunk can be made into a pile scene, which is equivalent to cultivating two trees by one tree, and the utilization efficiency of the cinnamomum camphora can be improved.
Claims (10)
1. A utilization method of large-specification cinnamomum camphora seedlings in south China is characterized by comprising the following steps: the method comprises the following steps:
1) selecting trees: selecting trees with the diameter at breast height of 20-40cm, vigorous growth, branch points of more than 2 meters, no obvious plant diseases and insect pests, no obvious cracking trace of barks, normal tree shape and no large amount of dead branches;
2) and girdling: directly and annularly peeling off a circle of barks at a position 50-70cm away from the ground of a trunk, wherein the width is about 10cm, the thickness is 0.5cm-1cm, and the phloem of the annular part needs to be completely removed to reach the xylem;
3) and wound treatment: after the wound is girdled, spraying a rooting bactericide on the girdled part immediately, and spraying moisture and spraying thoroughly to reach the degree that the liquid medicine flows downwards;
4) and wound wrapping: after the sterilization rooting agent is sprayed, the wound is wrapped by moist soilless substrates such as moss or coconut chaff, the wound needs to be completely wrapped, the wrapping thickness is 2-2.5 times of the breast diameter of the tree, the substrates are wrapped by films, and holes are punched on the films; pouring the wrapping matrix for one time to permeate water;
5) and maintenance management: opening the film twice every 30 days, watering the wrapping matrix once, and watering the sterilization rooting agent once, wherein the matrix is watered thoroughly during watering;
6) and lifting seedlings: after 3 months, pouring 800 times of urea and 1200 times of potassium dihydrogen phosphate compound fertilizer into the wrapping matrix once, pouring clear water once after half a month, and then starting to lift the seedlings after half a month, (if the root system grows slower in winter, the root system can be properly prolonged for half a month to one month), sawing the tree about 2-3 cm below the support frame, not damaging the new root system, immediately removing branches of more than three-stage branches of the sawn tree, and removing all leaves of the whole plant; transporting the tree to a planting site;
7) and planting the main stem part.
2. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: the specific formula of the rooting bactericide in the step 3) is 800 times of mancozeb, 1000 times of thiophanate-methyl, 40ppm of potassium indolebutyrate and 120ppm of sodium naphthaleneacetate.
3. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: and step 4) further comprises the step of clamping a tree body below the wrapping matrix by four wood rods to form a # -shaped base.
4. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: the film is colorless transparent, the aperture of the hole on the film is about 1mm, and the aperture density is 1/cm2。
5. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: the step 5) of maintenance management further comprises: after the wound is wrapped in the step 4), pouring the mixed solution of 600 times of urea and 1000 times of monopotassium forest phosphate once for the soil part where the camphor trees grow, and pouring the mixed solution of 600 times of urea and 1000 times of monopotassium forest phosphate once after 1 month; watering clear water once after 2 months, and watering a mixed solution of 600 times of urea and 1000 times of forest monopotassium phosphate once after 3 months; after 4 months, clear water is poured once. Sprout tillers grow out under the girdling belt and are reserved for cultivating the cinnamomum camphora stake scene.
6. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: in the step (7), during planting, when the bottom of the tree is in contact with the bottom of the planting hole, the bottommost part of the film wrapping the matrix is removed, after the tree is in full contact with the planting hole, all the films are removed, (the wrapping matrix is prevented from falling off to cause water loss of the root system), and then, the tree is filled with soil normally for planting and root water is poured.
7. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: the step (7) further comprises: the trees are supported, the brace bars are nailed into the soil for more than 0.5 m, and four-corner or six-corner supports are adopted.
8. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 1, which comprises the following steps: the method also comprises the steps of: cutting off the trunk part, and using the rest part for cultivating into a stake scene, wherein the trunk part is subjected to ring peeling before the trunk part is subjected to ring peeling, so that the lower surface of a ring peeling belt is induced to generate sprouts, the sprouts can naturally grow in the first 6 months after growing, and when the number of the sprouts on a stump is less than or equal to 3 after 6 months, pinching treatment is carried out on the grown sprouts, so that more branches are promoted to grow; when the number of the tillers is more than 3, pinching treatment is carried out after half a year; shaping once every month, wherein the shaping principle is to guide branches to grow to the positions of the crown vacancy, and the pruning and the copper wire or aluminum wire winding method are combined; when the crown width of the newly grown branch meets the requirement, the root cutting is started, the root cutting range is 5 times of the breast diameter by a circular root cutting method, the root cutting depth is 50-60cm, the root cutting is carried out twice, 1/2 is cut each time, the interval is three months, and the seedling can be lifted after two months, so that the method is used for landscaping.
9. The utilization method of the large-size cinnamomum camphora seedlings in south China according to claim 8, which comprises the following steps: the pile scene making further comprises: after the trunk is cut off, the soil of the root system of the stump of the camphor tree is subjected to 600 times of urea in the first month, 1000 times of forest potassium dihydrogen phosphate solution and clear water in the second month, and the circulation is carried out for two months until the stump is lifted.
10. The utilization method of the large-size cinnamomum camphora seedlings in south China according to any one of claims 1 to 9, which is characterized in that: construction and planting are carried out in a high temperature period (the highest temperature is more than or equal to 30 ℃).
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