CN111990201A

CN111990201A - Segmented ladder type cultivation method for pyracantha oblique-stem type miniature bonsai

Info

Publication number: CN111990201A
Application number: CN202010710598.9A
Authority: CN
Inventors: 李木良; 李晓红; 包润泽; 邱发根; 贺方翔; 杨月; 谭廷鸿; 杨传东; 杨友山
Original assignee: Tongren Mantanghong Agricultural Technology Co ltd; Tongren University
Current assignee: Tongren Mantanghong Agricultural Technology Co ltd; Tongren University
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2020-11-27
Anticipated expiration: 2040-07-22
Also published as: CN111990201B

Abstract

The invention belongs to the field of bonsai cultivation, and particularly relates to a segmented ladder type cultivation method of a pyracantha oblique-stem type miniature bonsai; the cultivation of the pyracantha fortuneana miniature bonsai is carried out by combining a stem cultivation method, a step-by-step directional branch cultivation method and the like through a stem cultivation mold frame consisting of an A-type support frame, a bonsai control molding mold frame and a high-pressure support frame, so that one pyracantha fortuneana seedling can be cultivated to obtain a multi-pot miniature bonsai, three-dimensional cultivation is realized, the utilization rate and the land utilization rate of the pyracantha fortuneana seedling are improved, the cultivated pyracantha miniature bonsai is exquisite and exquisite, legendary small dragon with horns koji is multi-pose and is naturally coordinated.

Description

Segmented ladder type cultivation method for pyracantha oblique-stem type miniature bonsai

Technical Field

The invention belongs to the field of bonsai cultivation, and particularly relates to a segmented ladder type cultivation method for a pyracantha oblique-stem type miniature bonsai.

Background

The potted landscape, one of the excellent traditional Chinese arts, is an art work which takes plants and mountain stones as basic materials to express natural landscape in a pot. It uses plant, mountain stone, soil and water as raw material, and makes them undergo the process of artistic creation and horticultural cultivation, and typically and concentratedly form beautiful landscape of nature in the basin so as to attain the artistic effect of reducing size and small size, at the same time, it uses the landscape to express sense of depth, and is just like three-dimensional beautiful reduced-version landscape. The bonsai is generally divided into two categories of stump bonsai and landscape bonsai, wherein the stump bonsai is mainly made of trees, and the stump bonsai is divided into 5 categories of super-large type, medium type, small type and micro type according to the height of the stump (wherein the cliff type extends according to the length of the branch). The inclined dry type potted landscape is one of the modeling styles of the tree potted landscape, and the tree body of the inclined dry type potted landscape inclines to one side and is generally slightly bent. The branch supports extend left and right, the shadows are oblique, and the wine is elegant, natural and has strong dynamic effect and quite poetic and pictorial meanings.

Pyracantha fortuneana, a evergreen shrub or a small tree of pyracantha of Rosaceae, can be up to 3m in height, and is usually propagated by sowing, cutting and layering. Pyracantha fortuneana is beautiful in tree shape, flowers are in summer, red fruits are in autumn, branches of fruits are kept for a long time, and hedgerow and garden landscaping materials are made in a courtyard. The pyracantha fortuneana is used as a bonsai, is evergreen in all seasons, compact in plant type and luxuriant in branches and leaves, can be used for observing flowers and fruits, and is deeply favored by bonsai lovers.

At present, most of bonsais are cultivated by a seedling to cultivate a pot of bonsai, the trunk diameter of the cultivated and formed bonsai is small, the trunk change is small, the modeling levels of main branches and leaves are poor, although the bonsai can be quickly formed, exquisite and exquisite, legendary small dragon with horns curved and colorful, cang-old and ambitious, fine and natural and harmonious high-quality bonsai is difficult to form, and the commodity value and the ornamental value of the bonsai are naturally influenced.

Patent document No. CN104920037A discloses a crape myrtle vase artistic modeling cultivation method, which is realized by the steps of vase structure analysis, vase integral design, individual plant technical map decomposition, individual plant cultivation mold frame manufacturing and installation, variety selection and seedling breeding, individual plant cultivation grading, vase inarching mold frame manufacturing, individual plant cultivation transplanting and inarching, healing growth forming, top grafting and head changing, and the like. The single-plant drying mold frame is composed of a support frame and a single-plant drying control mold frame, is designed and manufactured according to the shape of a vase and a single-plant technical map, can only be applied to the artistic form of the crape myrtle vase, needs to be manufactured again for other forms, and is low in utilization rate.

Disclosure of Invention

The invention provides a segmented ladder-type cultivation method of a pyracantha oblique-stem miniature bonsai, aiming at solving the problems.

The method is realized by the following technical scheme:

a segmented ladder type cultivation method of a pyracantha oblique-stem miniature bonsai comprises the following steps:

firstly, controlling parameters of the inclined dry type miniature bonsai structure:

overall parameters: the whole height is below 25cm, the width is below 20cm, the included angle between the trunk and the horizontal plane is generally 30-60 degrees, the trunk is gradually reduced upwards, the lateral branches are also gradually reduced, and the crown is a fan-shaped crown, a semicircular crown, an umbrella-shaped crown, a triangular crown or a dead-tip crown.

Second, seedling cultivation

1. Culturing strong and disease and pest free firethorn seedlings with height of 10-20cm in a container by adopting a seeding propagation method or a cutting propagation method.

2. Selecting soil with deep soil layer, loose soil, rich organic matters and good drainage, applying 10000kg of decomposed organic fertilizer per mu, ploughing and thinning, harrowing and dividing compartments, wherein the compartment width is 1.5-2.5 meters, the compartment height is 0.5-0.8 meter, and the ditch width is 0.5-1.2 meters.

Thirdly, manufacturing a cultivation mold frame for subsection cultivation

1. Manufacturing a support frame:

the support frame is composed of two equilong galvanized channel steel, the notches of the two channel steel are downward, one end of the two channel steel is fixed, the distance between the other end of the two channel steel is 8-10cm, a certain length is reserved at the separated end of the two channel steel and fixed in soil, the two channel steel are connected by a galvanized steel pipe at a position 5-7cm away from the soil surface, and the included angles between the two channel steel and the horizontal direction are equal and are in an A shape; the vertexes of a certain number of A-shaped frames are distributed on a straight line at intervals of 4-6cm, the channel steels on two sides are arranged in parallel according to the same side, and the vertexes and the channel steels on the same side are connected through galvanized steel pipes.

2. Control forming mould frame for making potted landscape

And (3) forming a base stem to control a die carrier: using three sections of galvanized steel bars with the diameter of 0.5-2.5 cm to manufacture a steel bar section with the length of 5-20 cm and two lengths of 2-5 cm, and welding and fixing the steel bar section into a Y shape, wherein the longer steel bar section is the lower end of the Y shape; welding and fixing the lower ends of a certain number of Y-shaped channels on the center line of the upward surface of the channel steel at certain intervals; the lower ends of the "Y" shapes may be equal in length (for straight stems) and unequal (for curved stems).

The dry branch forming control mould frame: using galvanized steel bars with the diameter of 0.5-2.5 cm and the length of 5-25 cm longer than the trunk of each level above the backbone of the miniature bonsai to determine a point on the steel bars to divide the steel bars into two sections, and processing and molding one end with the length equal to that of the trunk of each level above the backbone according to the length, the curvature and the direction of the trunk of each level above the backbone designed by the miniature bonsai; and then galvanized steel bars with the diameter of 0.5-1.5cm are used, the length of each galvanized steel bar is equal to that of each primary branch, and the implantation positions, the implantation angles and the branch shapes of the primary branches of all levels of trunks are respectively processed, molded and welded and fixed on corresponding trunks according to a die set according to the design of the miniature bonsai. The other end of the screw rod is processed into a screw rod with the length of 2-5 cm; and punching holes on the straight line on one side of the upward surface of the channel steel close to the central line according to the diameter slightly larger than that of the steel bar, and screwing and fixing the corresponding idle nuts at one end with the screw rods under the inflection point of each base stem.

3. Manufacturing a high-pressure support frame:

two galvanized steel bars with the diameter of 0.5-2.5 cm and the length of 30-50 cm are bent into a right-angled L shape at the midpoint, the L shapes are respectively welded and fixed on the vertical surfaces of the channel steel at two sides which are 5-15cm lower than the root neck point of the base stem, the section which is higher is horizontal, then two galvanized steel bars with the diameter of 0.5-2.5 cm and galvanized steel bar sections with the length of 10-20cm are welded and fixed in parallel at 1/4-1/3 and 2/3-4/5 of the length of the two opposite horizontal sections, and after forming, the high-pressure support frame and the channel steel form a ladder shape.

4. Seedling planting

Planting the pyracantha fortuneana seedlings in soil below the lowest end of the mold frame, placing the seedlings in the planting pits in an inclined mode, enabling the main stems of the seedlings to be parallel to and close to the basal stem growing mold frames in the direction, covering soil for fixing, and planting one seedling on each basal stem growing mold frame.

5. Nursery stock management

Watering the seedlings for 2-3 times after field planting to ensure the survival of the seedlings and the growth of root systems, and covering soil again and fixing the inclined seedlings.

Fourth, cultivation of main branch seedlings

1. Segmenting the nursery stock for growing the trunk:

the trunk cultivation seedling can grow to reach the height of the whole trunk cultivation mold frame, the trunk is sequentially divided into a first trunk section, a second trunk section and an … nth section from bottom to top, an appropriate position is selected for cultivating the base stem of each pot of miniature bonsai according to design of each trunk section, and the miniature bonsai is cultivated into a pot of miniature bonsais through a continuous cultivation process.

2. Selection and cultivation of basal stem section

When the growth of the first trunk section is finished at the growth height of the seedling trunk, the lateral branch growing at the front side in the trunk section is determined as a first-stage trunk section cultivation branch, the incidence point of the lateral branch is slightly a first inflection point, and the root neck point is determined according to the length of the basal trunk.

When the growth of the second and third … n trunk sections is completed at the growth height of the seedling trunk, the lateral branch growing at the front in the trunk section is determined as a first-stage trunk section cultivating branch, and the implantation point of the lateral branch is slightly a first inflection point.

And (3) selecting and reserving the lateral branches for cultivating the primary trunk sections on each trunk section for growth, performing apical bud pinching on other lateral branches on the corresponding trunk sections when the length of the lateral branches reaches 5-10 cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches for cultivating the primary trunk sections, so as to achieve rapid height increase and thickening.

3. First-level stem selection and cultivation

And (3) cultivating the primary trunk by utilizing the lateral branches selected and remained on each basal trunk, and determining the lateral branch growing on one side in the trunk section as a primary trunk section cultivating branch according to the length of the primary trunk and the extending direction of the secondary trunk when the growth of the primary trunk section is finished at the growth height of the primary trunk section, wherein the implantation point of the lateral branch is a second inflection point slightly.

And (3) selecting and reserving the lateral branches of the second-stage trunk section on each other first-stage trunk section for growing, performing apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 5-10 cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches of the first-stage trunk section, so as to achieve rapid height increase and thickening.

4. And selecting and cultivating the second-level … fifth-level stem section according to the selection and cultivation mode of the first-level stem section.

5. Cultivation of first-order branches

And selecting a lateral branch to cultivate the first primary branch according to the implantation position and the extending direction of the first primary branch under the implantation point of the second-level trunk on the selected primary trunk section. Correspondingly, under the implantation points of the secondary trunk on other selected primary trunk sections, one lateral branch is selected to cultivate the second, third, fourth and fifth primary branches according to the implantation positions and the extending directions of the second, third, fourth and fifth primary branches.

6. Second level branch cultivation

And selecting one lateral branch to cultivate the second-level lateral branch of the first-level branch on the selected first-level branch according to the secondary implantation position, the extending direction and the number on the first-level branch. Correspondingly, on the other selected primary trunk sections, the secondary lateral branches of the second, third, fourth and fifth primary branches are selected and cultivated according to the designed secondary implantation positions, extending directions and number on the second, third, fourth and fifth primary branches.

7. And (4) cultivating the third-level branches and the fourth-level branches according to the cultivation method of the first-level branches and the second-level branches.

8. High-pressure root-raising by sections

Girdling at the starting point of each section of basal trunk on each trunk in the vigorous growth period of the pyracantha fortuneana for 5-7 months, transversely cutting a circle along the trunks by using a quick cutter until the depth reaches the xylem, transversely cutting the circle downwards or upwards again by 0.5-1.5cm in width until the depth reaches the xylem, longitudinally cutting a knife between two transverse cuts, removing the cortex to scrape the cambium of the branch, coating a rooting powder solution on the surface of the cambium of the branch, standing for 5-10min, coating the rooting powder solution again, coating a mixture of moss and a soaked water-retaining agent with 100 times of chlorothalonil clear solution with the humidity of 70-90 percent on the surface of the girdling opening of the main trunk of the pyracantha fortuneana, wrapping the mixture by using a rope, fastening the plastic bag, wrapping black cloth on the outer side of the maintenance plastic bag after shading, and completely spraying the pyracantha fortuneana plants of the plastic bag, 0.3% -0.5% urea solution and 0.2% -0.4% potassium dihydrogen phosphate solution are sprayed for 2-3 times during rooting period to supplement nutrition for tree body.

9. Root pressing sleeve basin

Selecting an anti-aging plastic basin with a basin bottom opening diameter of 10-30cm and a height of 10-20cm, cutting the anti-aging plastic basin along the same straight line passing through the center point of the basin bottom opening by a saw, and dividing the anti-aging plastic basin into two parts to obtain a set basin; then, the bark, the wood chips and the mushroom slag are piled, retted and decomposed, crushed and sieved, and 10-30% of sterilized slag is added to prepare a high-pressure root-growing substrate; and (3) sequentially tearing off plastic bags and moss of the ring-peeled pyracantha fortuneana plants at 30-60 days, sleeving the root systems of the basal stem root necks on the supporting ladder frame by using a high-pressure sleeve pot, and filling the prepared substrates to the pot openings. And then carrying out daily management and maintenance such as watering, fertilization, pest control and the like. Wherein the fertilizer is applied according to the principle of more spring and summer, less autumn and no winter, and is applied after being diluted by 500 times of 100 plus materials by 0.5-1 percent of compound fertilizer with fermented and decomposed cake fertilizer water.

Fifthly, cultivating the root of Luzhua

Firstly, heaping up soil around the root in a high-pressure basin, and digging out surface soil layer by layer from top to bottom every half year until the root higher than the basin surface is completely exposed.

Sixthly, cutting and separately culturing

1. Cutting and separating

After the cultivation of the branch pieces and the top forming of the miniature pyracantha fortuneana bonsai grown on each section of a single plant are finished, a trunk at the bottom of each pot is tightly attached to the pot mouth by a small saw and a sharp shear, and the auxiliary branches of each primary trunk section branch the trunk above the rooting part along the primary side by the small saw and the sharp shear, so that each pot of miniature pyracantha fortuneana bonsai is separated from the cultivated tree body.

2. Scar on incision closure

Cutting flat: and cutting the cut of the trunk at the bottom of the pot and the cuts above the rooting part of each primary trunk along the primary side branches by a sharp knife.

Rotary cutting: and cutting each primary dry cut which is flat by using a miniature spiral cutter according to the conditions that the edge is shallow and the center is deep, so that the cut presents an uneven cut which sinks inwards.

And (3) incision cleaning: and cleaning the fine slag scraps in the cut opening by using 100-200 times of chlorothalonil liquid.

Incision protection: after the wound is treated, the plant wound healing agent is used for coating all incisions, and then the incisions and the trunk are tightly bound together by using a plastic film, so that the water evaporation is reduced, the rainwater erosion and the rot are prevented, and the wound healing is facilitated.

Seventhly, forming and maintaining

The miniature bonsai maintenance bed is manufactured in the greenhouse by using galvanized steel pipes, angle steel and steel wire meshes, the height is 80-120 cm, the width is 120 plus 150 cm, and the length field of view is determined, the miniature firethorn bonsai cut from the cultivation ladder frame and processed with the cut is placed on the maintenance bed, and then daily fertilizer and water management and trimming are carried out.

Further, the pyracantha plants include but are not limited to pyracantha angustifolia and pyracantha crenulata.

In conclusion, the beneficial effects of the invention are as follows: the cultivation of the pyracantha fortuneana miniature bonsai is carried out by combining a stem cultivation method, a step-by-step directional branch cultivation method and the like through a stem cultivation mold frame consisting of an A-type support frame, a bonsai control molding mold frame and a high-pressure support frame, so that one pyracantha fortuneana seedling can be cultivated to obtain a multi-pot miniature bonsai, three-dimensional cultivation is realized, the utilization rate and the land utilization rate of the pyracantha fortuneana seedling are improved, the cultivated pyracantha miniature bonsai is exquisite and exquisite, legendary small dragon with horns is multi-pose and is natural and coordinated, and large.

The method comprises the steps of cultivating a base trunk by utilizing a section of main trunk of the pyracantha fortuneana, cultivating corresponding first, second, third, fourth and fifth grades of lateral branches on the base trunk, and gradually reducing the diameter of each grade of main trunk section from bottom to top, and cultivating corresponding first grade branches by utilizing the lateral branches on the base trunk, the first, second, third, fourth and fifth grades of main trunk sections, so that the defects that the miniature bonsai trunk and the first grade branches cultivated by the background technology are small in change, exquisite and exquisite in shape, legendary small dragon with horns is multi-shaped, paleness and ambiguity, and fine and natural and harmonious high-quality bonsais are manufactured are overcome, the small-medium-sized trunk and natural and smooth in change are realized, and although the miniature tree has a big tree posture, and the ornamental value and the commodity value of the miniature bonsais are improved. The main branches of all levels, the primary branches of all levels and the lateral branches of other levels are all finished under continuous growth, and all the cultivation targets are controlled as dominant growth centers in the cultivation process, so that the growth speed is high, the integral forming is fast, the cultivation period is short, and the fast forming can be realized. Meanwhile, with the assistance of the stem cultivation die frame, a pyracantha seedling can be used for cultivating a plurality of pots of miniature pyracantha bonsais in a segmented mode on the A-shaped ladder type control cultivation die frame, after a cultivation period is completed, a trunk under the cut and separated miniature bonsais can be used as seedlings for continuous cultivation, the seedlings grow faster than seedlings, the technical defect that one pot is cultivated by one plant in the traditional cultivation method is overcome, the utilization rate of the seedlings is improved, three-dimensional cultivation is realized, and the land utilization rate is improved. The pyracantha fortuneana miniature bonsai with the same shape and uniform specification can be cultivated under the comprehensive control of the dry cultivation die carrier and various technical measures according to the design parameters of the whole body and all the components, the defects that the miniature bonsai cultivated in the background technology is increased in shape difference and difficult in uniform specification are overcome, and large-scale and standardized production can be realized.

Drawings

FIG. 1 is a structural diagram of an oblique dry type miniature handheld miniascape, wherein 1-root neck point, 2-first inflection point, 3-first-level branch implantation point, 4-second first-level branch, 5-third first-level branch implantation point, 6-fourth first-level branch, 7-fifth first-level branch implantation point, 8-top branch, 9-first-level branch, 10-second first-level branch implantation point, 11-third first-level branch, 12-fourth first-level branch implantation point, 13-fifth first-level branch and 14-root system.

FIG. 2 is a diagram of a cultivation process of a pyracantha miniature bonsai, wherein the cultivation process comprises 15-support frame channel steel, 16-support frame connecting rods, 17-cultivation compartments, 18-pyracantha seedlings, 19-high-pressure support frames, 20-root pressing sleeve pots, 21-a bonsai forming control mold frame, 22-bonsai basal stem supporting rods, 23-a fixing rod connected between the support frame channel steel and 24-bonsai forming control mold frame fixing holes.

Fig. 3 and 4 are finished effect diagrams of the miniature bonsai.

Detailed Description

The following is a detailed description of the embodiments of the present invention, but the present invention is not limited to these embodiments, and any modifications or substitutions in the basic spirit of the embodiments are included in the scope of the present invention as claimed in the claims.

Example 1

one-inclined dry type miniature bonsai structure control parameter

Overall parameters: the whole height is below 25cm, the width is below 20cm, the included angle between the trunk and the horizontal plane is 45 degrees, the trunk is gradually reduced upwards, the lateral branches are also gradually reduced, and the tree crown is a sector crown.

Second, seedling cultivation

1. And cultivating the pyracantha fortuneana seedlings which grow robustly and have no plant diseases and insect pests and have the height of 15cm in a container by adopting a sowing propagation method or a cutting propagation method.

2. Selecting soil with deep soil layer, loose soil, rich organic matters and good drainage, applying 6000kg of decomposed organic fertilizer per mu, ploughing and leveling, raking and dividing compartments, wherein the width of each compartment is 2.0 meters, the height of each compartment is 0.7 meter, and the width of each ditch is 0.9 meter.

Thirdly, manufacturing a cultivation mold frame for subsection cultivation

1. Manufacturing a support frame:

the support frame is composed of two equilong galvanized steel channels 15, notches of the two steel channels are downward, one end of each steel channel is fixed, the other end of each steel channel is separated at a certain interval, a certain length of the separated end is reserved and fixed in soil, the two steel channels are connected through galvanized steel pipes, and included angles between the two steel channels and the horizontal direction are equal and are in an A shape; the vertexes of a certain number of the A-shaped frames are distributed on a straight line according to a certain interval, the channel steels on two sides are arranged in parallel according to the same side, and the vertexes and the channel steels on the same side are connected through galvanized steel pipes.

2. Control forming die carrier 21 for making potted landscape

And (3) forming a base stem to control a die carrier: manufacturing a steel bar section with the length of 12 centimeters and two steel bar sections with the length of 3 centimeters by using three sections of galvanized steel bars with the diameter of 1.7 centimeters, and welding and fixing the steel bar sections into a Y-shaped structure, wherein the longer steel bar section is the lower end of the Y-shaped structure; welding and fixing the lower ends of a certain number of Y-shaped channels on the center line of the upward surface of the channel steel at certain intervals; the lower ends of the "Y" shapes may be equal in length (for straight stems) and unequal (for curved stems).

The dry branch forming control mould frame: using galvanized steel bars with the diameter of 1.7 cm and the length of 17 cm larger than that of each level of trunks above the backbone of the miniature bonsai to determine a point on the steel bars to divide the steel bars into two sections, so that one end with the length equal to that of each level of trunks above the backbone is processed and formed according to the length, the curvature and the direction of each level of trunks above the backbone designed by the miniature bonsai; and then galvanized steel bars with the diameter of 1.0cm are used, the length of each galvanized steel bar is equal to that of each primary branch, and the galvanized steel bars are respectively processed, molded and welded and fixed on the corresponding main trunk according to a die set according to the implantation position, the implantation angle and the branch shape of the primary branch of each level of the main trunk designed according to the miniature bonsai. The other end of the screw rod is processed into a screw rod with the length of 3 cm; and punching holes on the straight line on one side of the upward surface of the channel steel close to the central line according to the diameter slightly larger than that of the steel bar, and screwing and fixing the corresponding idle nuts at one end with the screw rods under the inflection point of each base stem.

3. Manufacturing a high-pressure support frame 19:

two galvanized steel bars with the diameter of 1.7 cm and the length of 40 cm are bent into a right-angled L shape at the middle point, the L shapes are respectively welded and fixed on the vertical surfaces of the channel steel at two sides 5-15cm lower than the root neck point of the foundation stem, the section higher than the root neck point is horizontal, then the two galvanized steel bars with the diameter of 1.7 cm and the section of the galvanized steel bar with the length of 15cm are welded and fixed in parallel at 1/3 and 2/3 positions of the two sections opposite to the horizontal section, and after forming, the high-pressure support frame and the channel steel form a step shape.

4. Seedling planting

Planting the pyracantha fortuneana seedlings in soil below the lowest end of the mold frame, placing the seedlings in the planting pits in an inclined mode, enabling the main stems of the seedlings to be parallel to and close to the basal stem growing mold frames in the direction, covering soil for fixing, and planting one seedling on each basal stem growing mold frame. And (3) watering the seedlings for 2 times after field planting to ensure the survival of the seedlings and the growth of root systems, and covering soil again and fixing the deflected seedlings.

Fourth, cultivation of main branch seedlings

1. Segmenting the nursery stock for growing the trunk:

2. Selection and cultivation of basal stem section

When the growth of the first trunk section is finished at the growth height of the seedling trunk, the lateral branch growing at the front side in the trunk section is determined as a first-stage trunk section cultivating branch, the incidence point of the lateral branch is slightly a first inflection point 2, and the root neck point 1 is determined according to the length of the basal trunk.

And selecting and reserving the lateral branches for cultivating the first-level trunk section on each trunk section for growing, and performing apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 7cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches for cultivating the first-level trunk section, so as to achieve rapid height increase and thickening.

3. First-level stem selection and cultivation

And (3) cultivating the primary trunk by utilizing the lateral branches selected and remained on each basal trunk, and determining the lateral branch growing on one side in the trunk section as a primary trunk section cultivating branch 9 according to the length of the primary trunk and the extending direction of the secondary trunk when the growth height of the primary trunk section is finished, wherein the growing point of the lateral branch is a second inflection point slightly.

And (3) selecting and reserving the lateral branches of the second-stage trunk section on each other first-stage trunk section for growing, performing apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 7cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches of the first-stage trunk section, so as to achieve rapid height increase and thickening.

5. Cultivation of first-order branches

And selecting a lateral branch to cultivate the first primary branch according to the implantation position and the extending direction of the first primary branch under the secondary stem implantation point 10 on the selected primary stem section. Correspondingly, under the implantation points of the secondary trunk on other selected primary trunk sections, one lateral branch is selected to cultivate the second, third, fourth and fifth primary branches according to the implantation positions and the extending directions of the second, third, fourth and fifth primary branches.

6. Second level branch cultivation

8. High-pressure root-raising by sections

Girdling at the starting point of each section of basal trunk on each trunk in 6 months of the vigorous growth period of the pyracantha fortuneana, transversely cutting a circle along the trunks by using a quick cutter until the depth reaches the xylem, transversely cutting the trunk by one circle downwards or upwards again according to the width of 1.0cm, similarly reaching the xylem deeply, longitudinally cutting a circle between two transverse cuts, removing the cortex to scrape the cambium of the branch, coating rooting powder solution on the surface of the cambium of the branch, standing for 7min, coating the rooting powder solution again, coating a mixture of moss and a soaked water-retaining agent with the humidity of 80 percent and 100 times of chlorothalonil clear solution for 2h on the surface of the girdling opening of the main trunk of the pyracantha fortuneana, wrapping the mixture by using a plastic bag with the upper part and the lower part exceeding 7cm, tightly binding the bag by using a rope, coating black shading cloth on the outer side of the rope after finishing, spraying the plant of the girdling with full light, and spraying 0.4 percent of urea solution and 0.3 percent of potassium dihydrogen phosphate solution for, to supplement the nutrition of the tree.

9. Root pressing sleeve basin 20

Selecting an anti-aging plastic basin with a basin bottom opening diameter of 20cm and a height of 15cm, cutting the anti-aging plastic basin along the same straight line passing through the center point of the basin bottom opening by a saw, and dividing the anti-aging plastic basin into two parts to obtain a set basin; then, the barks, the wood chips and the mushroom residues are piled up, retted and decomposed, crushed and sieved, and 20 percent of sterilized furnace slag is added to prepare a high-pressure root-growing substrate; and (4) sequentially tearing off plastic bags and moss of the ring-peeled pyracantha fortuneana plants on the 45 th day, sleeving the root systems of the basal stem root necks by using high-pressure sleeve pots on the support ladder frame, and filling the prepared substrates to the pot openings. And then carrying out daily management and maintenance such as watering, fertilization, pest control and the like. Wherein the fertilizer is applied according to the principle of more spring and summer, less autumn and no winter, and is applied after being diluted by 500 times of 100-fold organic fertilizer with 0.7 percent of compound fertilizer by fermented decomposed cake fertilizer water.

Fifthly, cultivating the root of Luzhua

Sixthly, cutting and separately culturing

1. Cutting and separating

2. Scar on incision closure

And (3) incision cleaning: and cleaning fine slag scraps in the cut part by using 150 times of chlorothalonil liquid.

Seventhly, forming and maintaining

The miniature bonsai maintenance bed is manufactured in a greenhouse by using galvanized steel pipes, angle steel and a steel wire mesh, the height is 100 cm, the width is 135 cm, the length field of view is determined, the miniature firethorn bonsai cut from a cultivation ladder frame and processed with a cut is placed on the maintenance bed, and then daily fertilizer and water management and trimming are carried out.

Further, the fertilizer applied during the cultivation period is obtained by immersing the rapeseed cakes in water and fermenting for 40 days, and mixing the rapeseed cakes with 100kg of cake fertilizer water, 200kg of water and 4kg of 15-15-15 potassium sulfate compound fertilizer 100 times of leachate. The fertilization time is once in half a month.

Further, the pest control solution used in the cultivation period is prepared by spraying 1000 times of 50% carbendazim wettable powder, 800 times of 50% thiophanate methyl wettable powder and 1000 times of 50% Laite wettable powder once every half month, and continuously spraying the solution in the whole cultivation period for pest control.

Further, the pyracantha plant is pyracantha angustifolia.

Example 2

overall parameters: the whole height is below 25cm, the width is below 20cm, the included angle between the trunk and the horizontal plane is 60 degrees, the trunk is gradually reduced upwards, the lateral branches are also gradually reduced, and the tree crown is a semicircular crown.

Second, seedling cultivation

1. And (3) cultivating the pyracantha fortuneana seedlings which are robust in growth, free of diseases and insect pests and 20cm in height in a container by adopting a sowing propagation method or a cutting propagation method.

2. Selecting soil with deep soil layer, loose soil, rich organic matters and good drainage, applying 10000kg of decomposed organic fertilizer per mu, ploughing and thinning, raking and dividing compartments, wherein the width of each compartment is 2.5 meters, the height of each compartment is 0.8 meter, and the width of each ditch is 1.2 meters.

Thirdly, manufacturing a cultivation mold frame for subsection cultivation

1. Manufacturing a support frame:

the support frame is composed of two equilong galvanized channel steel, the notches of the two channel steel are downward, one end of the two channel steel is fixed, the other end of the two channel steel is separated at a certain interval, a certain length of the separated end is reserved and fixed in soil, the two channel steel are connected by a galvanized steel pipe, and the included angles between the two channel steel and the horizontal direction are equal and are in an A shape; the vertexes of a certain number of the A-shaped frames are distributed on a straight line according to a certain interval, the channel steels on two sides are arranged in parallel according to the same side, and the vertexes and the channel steels on the same side are connected through galvanized steel pipes.

2. Control forming mould frame for making potted landscape

And (3) forming a base stem to control a die carrier: manufacturing a steel bar section with the length of 20cm and two steel bar sections with the length of 5cm by using three sections of galvanized steel bars with the diameter of 2.5 cm, and welding and fixing the steel bar sections into a Y-shaped structure, wherein the longer steel bar section is the lower end of the Y-shaped structure; welding and fixing the lower ends of a certain number of Y-shaped channels on the center line of the upward surface of the channel steel at certain intervals; the lower ends of the "Y" shapes may be equal in length (for straight stems) and unequal (for curved stems).

The dry branch forming control mould frame: using galvanized steel bars with the diameter of 2.5 cm and the length of 25cm larger than that of each level of trunks above the backbone of the miniature bonsai to determine a point on the steel bars to divide the steel bars into two sections, so that one end with the length equal to that of each level of trunks above the backbone is processed and formed according to the length, the curvature and the direction of each level of trunks above the backbone designed by the miniature bonsai; and then galvanized steel bars with the diameter of 1.5cm are used, the length of each galvanized steel bar is equal to that of each primary branch, and the galvanized steel bars are respectively processed, molded and welded and fixed on the corresponding main trunk according to a die set according to the implantation position, the implantation angle and the branch shape of the primary branch of each level of the main trunk designed according to the miniature bonsai. The other end of the screw rod is processed into a screw rod with the length of 5 cm; and punching holes on the straight line on one side of the upward surface of the channel steel close to the central line according to the diameter slightly larger than that of the steel bar, and screwing and fixing the corresponding idle nuts at one end with the screw rods under the inflection point of each base stem.

3. Manufacturing a high-pressure support frame:

two galvanized steel bars with the diameter of 2.5 cm and the length of 50 cm are bent into a right-angled L shape at the middle point, the L shapes are respectively welded and fixed on the vertical surfaces of the channel steel at two sides 15cm lower than the root neck point of the foundation stem, the channel steel is horizontally arranged at the higher section, then the two galvanized steel bars with the diameter of 2.5 cm and the galvanized steel bar section with the length of 20cm are welded and fixed in parallel at 1/3 and 4/5 positions of the two opposite horizontal sections, and after the forming, the high-pressure support frame and the channel steel form a step shape.

4. Seedling planting

Planting the pyracantha fortuneana seedlings in soil below the lowest end of the mold frame, placing the seedlings in the planting pits in an inclined mode, enabling the main stems of the seedlings to be parallel to and close to the basal stem growing mold frames in the direction, covering soil for fixing, and planting one seedling on each basal stem growing mold frame. After field planting, 3 times of rooting water is poured to ensure the survival of the seedlings and the growth of root systems, and the oblique seedlings are covered with soil again for fixation.

Fourth, cultivation of main branch seedlings

1. Segmenting the nursery stock for growing the trunk:

2. Selection and cultivation of basal stem section

And selecting and reserving the lateral branches for cultivating the primary trunk section on each trunk section for growing, and performing apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 10cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches for cultivating the primary trunk section, so as to achieve rapid height increase and thickening.

3. First-level stem selection and cultivation

And (3) selecting and reserving the lateral branches of the second-stage trunk section on each other first-stage trunk section for growing, performing apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 10cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches of the first-stage trunk section, so as to achieve rapid height increase and thickening.

5. Cultivation of first-order branches

6. Second level branch cultivation

8. High-pressure root-raising by sections

Girdling at the starting point of each section of basal trunk on each trunk in the 7-month vigorous growth period of the pyracantha fortunei, transversely cutting a circle along the trunks by using a quick cutter until the depth reaches the xylem, transversely cutting the trunk by one circle downwards or upwards again until the width reaches the xylem by 1.5cm, longitudinally cutting a circle between two transverse cuts, removing the cortex to scrape the cambium of the branch, coating rooting powder solution on the surface of the cambium of the branch, standing for 10min, coating the rooting powder solution again, coating a mixture of moss and a soaked water-retaining agent with the humidity of 90 percent and 100 times of chlorothalonil clear solution for 2h on the surface of the girdling opening of the pyracantha fortunei trunk, wrapping the moss and the soaked water-retaining agent by the mixture with the humidity of 90 percent, wrapping the moss and the mixture by using a plastic bag with the upper part and the lower part exceeding 10cm, tightly binding the moss by using a rope, wrapping the black shading cloth on the outer side of the pyracantha fortunei plants after finishing, spraying the total light of the pyracantha, to supplement the nutrition of the tree.

9. Root pressing sleeve basin

Selecting an anti-aging plastic basin with a basin bottom opening diameter of 30cm and a height of 20cm, cutting the anti-aging plastic basin along the same straight line passing through the center point of the basin bottom opening by a saw, and dividing the anti-aging plastic basin into two parts to obtain a set basin; then, the barks, the wood chips and the mushroom residues are piled up, retted and decomposed, crushed and sieved, and 30 percent of sterilized furnace slag is added to prepare a high-pressure root-growing substrate; and (3) sequentially tearing off plastic bags and moss of the ring-peeled pyracantha fortuneana plants at the day 60, sleeving the root systems of the basal stem root necks on the support ladder frame by using a high-pressure sleeve pot, and filling the prepared substrates to the pot openings. And then carrying out daily management and maintenance such as watering, fertilization, pest control and the like. Wherein the fertilizer is applied according to the principle of more spring and summer, less autumn and no winter, and is applied after being diluted by 500 times of 100 plus materials by adding 1 percent compound fertilizer into fermented and decomposed cake fertilizer water.

Fifthly, cultivating the root of Luzhua

Sixthly, cutting and separately culturing

1. Cutting and separating

2. Scar on incision closure

And (3) incision cleaning: and cleaning fine slag scraps in the cut part by using 200 times of chlorothalonil.

Seventhly, forming and maintaining

The miniature bonsai maintenance bed is manufactured in a greenhouse by using galvanized steel pipes, angle steel and a steel wire mesh, the height, the width and the length of a field of view are determined, the miniature firethorn bonsai cut from a cultivation ladder frame and processed with a cut is placed on the maintenance bed, and then daily fertilizer and water management and trimming are carried out.

Further, the fertilizer applied during the cultivation period is obtained by immersing peanut cakes in water for fermentation for 50 days and mixing the peanut cakes with 100kg of cake fertilizer water, 200kg of water and 5kg of 15-15-15 potassium sulfate compound fertilizer 100 times of leachate. The fertilization time is once in half a month.

Further, the pest control liquid used in the cultivation period is diluted 1500 times by 50% zinc sulfur phosphorus missible oil, diluted 1500 times by 25% pymetrozine fog and diluted 5500 times by 10% cypermethrin missible oil, and is sprayed once every half month, and continuously sprayed in the whole cultivation period for pest control.

The pyracantha plant is pyracantha crenulata.

Example 3

overall parameters: the whole height is below 25cm, the width is below 20cm, the included angle between the trunk and the horizontal plane is 30 degrees, the trunk is gradually reduced upwards, the lateral branches are also gradually reduced, and the tree crown is a triangular crown.

Second, seedling cultivation

1. And cultivating the pyracantha fortuneana seedlings which grow robustly and have no plant diseases and insect pests and have the height of 10cm in a container by adopting a sowing propagation method or a cutting propagation method.

2. Selecting soil with deep soil layer, loose soil, rich organic matters and good drainage, applying 2000kg of decomposed organic fertilizer to each mu of soil, ploughing and leveling, raking and dividing compartments, wherein the width of each compartment is 1.5 meters, the height of each compartment is 0.5 meter, and the width of each ditch is 0.5 meter.

Thirdly, manufacturing a cultivation mold frame for subsection cultivation

1. Manufacturing a support frame:

2. Control forming mould frame for making potted landscape

And (3) forming a base stem to control a die carrier: manufacturing a steel bar section with the length of 5cm and two steel bar sections with the length of 2 cm by using three sections of galvanized steel bars with the diameter of 0.5cm, and welding and fixing the steel bar sections into a Y-shaped structure, wherein the longer steel bar section is the lower end of the Y-shaped structure; welding and fixing the lower ends of a certain number of Y-shaped channels on the center line of the upward surface of the channel steel at certain intervals; the lower ends of the "Y" shapes may be equal in length (for straight stems) and unequal (for curved stems).

The dry branch forming control mould frame: using galvanized steel bars with the diameter of 0.5cm and the length of 5cm larger than that of each level of trunks above the backbone of the miniature bonsai to determine a point on the steel bars to divide the steel bars into two sections, so that one end with the length equal to that of each level of trunks above the backbone is processed and formed according to the length, the curvature and the direction of each level of trunks above the backbone designed by the miniature bonsai; and then zinc-plated steel bars with the diameter of 0.5cm are used, the lengths of the zinc-plated steel bars are equal to the lengths of the first-level branches, and the zinc-plated steel bars are respectively processed, molded and welded and fixed on the corresponding main trunk according to a die set according to the implantation position, the implantation angle and the branch shape of the first-level branches of each-level trunk designed according to the miniature bonsai. The other end of the screw rod is processed into a screw rod with the length of 2 cm; and punching holes on the straight line on one side of the upward surface of the channel steel close to the central line according to the diameter slightly larger than that of the steel bar, and screwing and fixing the corresponding idle nuts at one end with the screw rods under the inflection point of each base stem.

3. Manufacturing a high-pressure support frame:

two galvanized steel bars with the diameter of 0.5cm and the length of 30cm are bent into a right-angled L shape at the midpoint, the L shapes are respectively welded and fixed on the vertical surfaces of the channel steel at two sides which are 5-15cm lower than the root neck point of the foundation stem, the section which is higher is horizontal, then the two galvanized steel bars with the diameter of 0.5-2.5 cm and the section which is 10cm long are welded and fixed in parallel at the 1/4 and 2/3 positions of the two sections which are opposite to the horizontal section, and after the forming, the high-pressure support frame and the channel steel form a ladder shape.

4. Seedling planting

Fourth, cultivation of main branch seedlings

1. Segmenting the nursery stock for growing the trunk:

2. Selection and cultivation of basal stem section

And selecting and reserving the lateral branches for cultivating the first-level trunk section on each trunk section for growing, performing apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 5cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches for cultivating the first-level trunk section, thereby achieving quick height increase and thickening.

3. First-level stem selection and cultivation

And (3) selecting and reserving the lateral branches of the second-stage trunk section on each other first-stage trunk section for growing, carrying out apical bud pinching on other lateral branches on the corresponding trunk section when the length reaches 5cm, and controlling the growth of the lateral branches to ensure the growth advantage center of the lateral branches of the first-stage trunk section, so as to achieve rapid height increase and thickening.

5. Cultivation of first-order branches

6. Second level branch cultivation

8. High-pressure root-raising by sections

Girdling at the starting point of each section of basal trunk on each trunk in the 5-month vigorous growth period of the pyracantha fortunei, transversely cutting a circle along the trunks by using a quick cutter until the depth reaches the xylem, transversely cutting the trunk by a circle downwards or upwards again until the width reaches the xylem by 0.5cm, longitudinally cutting the position between two transverse cuts by one time, removing the cortex to scrape the cambium of the branch, coating rooting powder solution on the surface of the cambium of the branch, standing for 5min, coating the rooting powder solution again, coating a mixture of moss and a soaked water-retaining agent with the humidity of 70 percent and 100 times of chlorothalonil clear solution for 1 hour on the surface of the girdling opening of the pyracantha fortunei trunk, wrapping the moss and the soaked water-retaining agent by using a plastic bag with the upper part and the lower part exceeding 5cm, wrapping the moss by using a rope, wrapping the black shading cloth on the outer side of the rope after finishing, spraying the plant with full light to the pyracantha fortunei which is girdled, and spraying a plastic bag of 0., to supplement the nutrition of the tree.

9. Root pressing sleeve basin

Selecting an anti-aging plastic basin with a basin bottom opening diameter of 10cm and a height of 10cm, cutting the anti-aging plastic basin along the same straight line passing through the center point of the basin bottom opening by a saw, and dividing the anti-aging plastic basin into two parts to obtain a set basin; then, the barks, the wood chips and the mushroom residues are piled up, retted and decomposed, crushed and sieved, and 10 percent of sterilized furnace slag is added to prepare a high-pressure root-growing substrate; and (3) sequentially tearing off plastic bags and moss of the ring-peeled pyracantha fortuneana plants at the 30 th day, sleeving the root systems of the basal stem root necks by using high-pressure sleeve pots on the supporting ladder frame, and filling the prepared substrates to the pot openings. And then carrying out daily management and maintenance such as watering, fertilization, pest control and the like. Wherein the fertilizer is applied according to the principle of more spring and summer, less autumn and no winter, and is applied after being diluted by 100 times by 0.5 percent of compound fertilizer with fermented and decomposed cake fertilizer water.

Fifthly, cultivating the root of Luzhua

Sixthly, cutting and separately culturing

1. Cutting and separating

2. Scar on incision closure

And (3) incision cleaning: and cleaning the fine slag scraps in the cut notch by using 100 times of the chlorothalonil.

Seventhly, forming and maintaining

The miniature bonsai maintenance bed is manufactured in a greenhouse by using galvanized steel pipes, angle steel and a steel wire mesh, the height is 80 cm, the width is 120 cm, and the length is determined according to the field, the miniature firethorn bonsai cut from a cultivation ladder frame and processed with a cut is placed on the maintenance bed, and then daily fertilizer and water management and trimming are carried out.

Further, the fertilizer applied during the cultivation period is obtained by immersing soybean meal in water and fermenting for 30 days, and mixing according to the proportion of 100 times of leachate of 100kg of cake fertilizer water, 200kg of water and 3kg of 15-15-15 potassium sulfate compound fertilizer. The fertilization time is once in half a month.

Further, the pest control solution used in the cultivation period is 1000 times liquid of 50% carbendazim wettable powder, 1000 times liquid of 25% pirimiphos-fog and 1000 times liquid of 50% Laite wettable powder, and the pest control solution is continuously sprayed for disease prevention in the whole cultivation period once every half month.

The pyracantha plant is a lanchong pyracantha.

Claims

1. A segmented ladder type cultivation method of a pyracantha oblique-stem miniature bonsai comprises the following steps: the method comprises the following steps of structure analysis, seedling cultivation, land preparation and compartment division, manufacturing of a segmented ladder type stem cultivation mould base, main branch seedling cultivation, exposed claw root cultivation, stem cutting and separate cultivation and forming maintenance.

2. The method as claimed in claim 1, wherein the step cultivation of the main stem comprises dividing the main stem of the seedling into a number of trunk segments, each segment being used to cultivate the base stem of each pot of miniature bonsai, determining the first, second, third, fourth, fifth, sixth inflection points and root neck points of the trunk segments, and ensuring the side branches of the trunk segments to be growth dominant centers.

3. The method as claimed in claim 1, wherein the step-by-step directional branch cultivation is carried out by selecting a side branch to cultivate a first primary branch according to the designed implantation position and extending direction of the first primary branch under the implantation point of the second primary branch on the selected first primary trunk section, and selecting a side branch to cultivate a second, third, fourth and fifth primary branches according to the designed implantation position and extending direction of the second, third, fourth and fifth primary branches under the implantation point of the second primary branch on each selected other first primary trunk section; and (5) determining and cultivating the second-level branches, the third-level branches and the fourth-level branches in the same way.

4. The stepwise ladder-type cultivation method of pyracantha oblique-stem miniature bonsai as claimed in claim 1, wherein the stepwise high-pressure root cultivation is carried out by soaking fresh moss with chlorothalonil, peeling the pyracantha stepwise around, wrapping the wound with moss, managing for 30-60 days, preparing root-pressing cover pot with plastic pot, inserting root system of basal stem root neck into the high-pressure cover pot on the support ladder, filling matrix, and carrying out daily maintenance.

5. The method of claim 4, wherein the step-wise girdling is carried out by girdling pyracantha fortuneana at the beginning of each trunk segment of the base trunk during vigorous growth period to form a cortex layer with a depth of 0.5-1.5cm and a xylem, removing the cortex layer, scraping the cambium layer of the branch, and treating and binding the wound.

6. The method as claimed in claim 1, wherein the step-by-step cultivation module comprises three detachable parts: the device comprises an A-type support frame, a bonsai control forming die frame and a high-pressure support frame, wherein the specific connection relation is as follows: the miniascape control forming die frame is fixed on the A-shaped support frame in parallel, and then the high-pressure support frame is fixed on the miniascape control forming die frame.

7. The method of claim 6, wherein the A-shaped support frame comprises the following components: the galvanized steel pipes are arranged on the same side of the steel pipe, the notches of two equilong galvanized steel pipes face downwards, one ends of the two equilong galvanized steel pipes are fixed, the distance between the other ends of the two equilong galvanized steel pipes is 8-10cm, the separated ends of the two equilong galvanized steel pipes are fixed in soil, the two steel pipes are connected through galvanized steel pipes at a position 5-7cm away from the soil surface, the included angles between the two steel pipes and the horizontal direction are equal and are in an A shape, the included angles are determined by the inclination angle of a foundation, the top point of an A-shaped frame is arranged on a straight line at a distance of 4-6 cm.

8. The method of claim 6, wherein the potted landscape control molding die set comprises a stem molding control die set and a branch molding control die set:

the foundation dry forming control die carrier is formed by welding and fixing three sections of galvanized steel bars into a Y shape, and then welding and fixing the lower ends of a certain number of the Y shapes on the upward central line of the channel steel of the A-shaped support frame;

the branch forming control mold frame is used for processing and forming the galvanized steel bars according to the implantation position, the angle and the branch shape of the primary branch of each grade trunk of the miniature bonsai and welding and fixing the galvanized steel bars on the corresponding trunk mold frame.

9. The method as claimed in claim 6, wherein the high pressure support frame is formed by bending two galvanized steel bars into a right-angled L-shape at a midpoint thereof, and welding and fixing the L-shaped steel bars to the vertical surfaces of the channel steel at two sides 5-15cm lower than the root neck point of the stem, respectively, wherein the section of the channel steel at the midpoint is higher than the vertical surfaces of the channel steel, and the section of the channel steel is horizontal, and then the two galvanized steel bars are welded and fixed in parallel at 1/4-1/3 and 2/3-4/5 of the length of the two opposite horizontal sections, and after molding, the high pressure support frame and the channel steel form a step shape.

10. The method for cultivating the miniature bonsai by the stepwise ladder way as claimed in claims 1 to 9, wherein the pyracantha plants include but are not limited to pyracantha angustifolia and pyracantha crenulata.