Greening nursery stock planting method

Abstract

The invention relates to a greening nursery stock planting method which comprises the following steps: S1, digging a plant pit according to a cylindrical space structure; s2, mounting cylinders are placed, specifically, the mounting cylinders are placed in the plant pits, the bottoms of the mounting cylinders abut against the bottoms of the plant pits, interlayers and cylindrical spaces are arranged in the mounting cylinders, and the interlayers are located on the peripheral walls of the cylindrical spaces; s3, the selected nursery stock root soil balls are put into the cylindrical space, and then backfill soil is put into the cylindrical space; s4, the interlayer in the middle of the mounting cylinder is watered for several times, and in the successive watering process, the height of the interlayer is gradually increased till all the backfilled soil in the cylinder space is watered thoroughly. According to the planting method of the green nursery stock, the situation that the root system of the nursery stock nests the root can be avoided, meanwhile, layered water source irrigation from bottom to top can be achieved, and the situation that due to soil sedimentation, the root system of a tree transplanted just now absorbs the water source unevenly, and later-period growth is affected is prevented.

Description

Technical Field

[0001] The present invention relates to the field of nursery stock planting, and particularly to a method for planting greening nursery stocks. Background Art

[0002] The planting of greening nursery stocks generally utilizes the rich and diverse forms and colors of plants. Through reasonable arrangement, various ecological environments such as cities, villages, and parks are decorated and beautified. Common planting methods for greening nursery stocks include whole-plant transplantation, cuttings in pots, and sowing, etc. Among them, the whole-plant transplantation method is the most common. During the planting process, attention should be paid to protecting the roots of the nursery stocks to avoid damage. The planting of greening nursery stocks is a complex process involving multiple links and technologies, and each link is crucial. By scientifically and reasonably selecting varieties, preparing the soil, planting, watering, pruning, supporting, and preventing diseases and pests, etc., the survival rate and growth quality of the nursery stocks can be effectively improved, so as to achieve the purpose of beautifying the environment and improving the ecology.

[0003] Currently, in the prior art (for example, the application number is 201710472454.2, and the patent name is a method for planting nursery stocks), the planting method of greening nursery stocks is land preparation, planting, supporting nursery stocks, and watering. However, during the process of planting nursery stocks, since the roots of the nursery stocks are directly put into the tree hole for filling soil and planting, it is very easy to cause some roots to be curled, affecting the growth of the trees. And when watering the roots of the planted nursery stocks, the roots of the nursery stocks just transplanted need a large amount of water. If watering is carried out according to the watering method in the prior art, that is, directly surrounding the root of the sapling with an earth dam for watering, the process of water infiltration will cause the soil to settle and stratify, affecting the later growth and development of the sapling. Summary of the Invention

[0004] In view of the above problems, the main object of the present invention is to provide a method for planting greening nursery stocks, which can avoid the situation of curled roots during the planting process of nursery stocks, and at the same time can realize hierarchical watering of water sources from bottom to top, preventing the soil from settling, resulting in uneven absorption of water sources by the roots of the newly transplanted trees and affecting the later growth.

[0005] To achieve the above object, the present invention provides a method for planting greening seedlings, which is characterized by including the following steps: Step S1: Dig a tree hole, and the shape of the tree hole is dug according to a cylindrical space structure; Step S2: Place an installation cylinder, place the installation cylinder in the tree hole, the bottom of the installation cylinder abuts against the bottom of the tree hole, and there is an interlayer and a cylindrical space inside the installation cylinder, and the interlayer is located on the outer peripheral wall of the cylindrical space; Step S3: First, lay nutrient soil at the bottom of the tree hole within the cylindrical space, then place the root ball of the selected seedling into the cylindrical space, then install a support device on the trunk of the seedling, adjust the support device to fix the seedling in the vertical direction, and ensure that there is a distance between the bottom of the root of the seedling and the tree hole, and then put backfill soil into the cylindrical space outside the root of the seedling; Step S4: Water the interlayer in the middle of the installation cylinder in batches. During the process of watering successively, gradually increase the height of the interlayer, and compact the backfill soil in the cylindrical space until all the backfill soil in the cylindrical space is thoroughly watered.

[0006] In other embodiments, the installation cylinder is a cylindrical structure with openings at both the upper and lower ends. The installation cylinder includes an outer cylinder and an inner cylinder sleeved inside the outer cylinder. The inner cylinder forms the cylindrical space, and the interlayer is formed between the outer cylinder and the inner cylinder. The height of the inner cylinder is greater than the height of the outer cylinder.

[0007] In other embodiments, the upper end of the outer cylinder is provided with an outwardly expanding opening, and the outer peripheral wall of the bottom of the inner cylinder is provided with a plurality of filter holes. An annular groove is provided on the outer side of the filter holes, and the outer wall of the annular groove is in movable contact with the inner wall of the outer cylinder.

[0008] In other embodiments, it further includes a water inlet baffle. The water inlet baffle includes an annular body and a circular ring baffle connected to the bottom surface of the annular body. The diameter of the circular ring baffle is greater than the diameter of the inner cylinder and less than the diameter of the outer cylinder, and the circular ring baffle is provided with filtering water inlet holes.

[0009] In other embodiments, several handles are provided at the edge of the upper port of the inner cylinder.

[0010] In other embodiments, it further includes a filtering device. The filtering device includes a chassis, a filter screen, and a connecting member connected in sequence. Several strip-shaped bodies are provided on the inner wall of the connecting member. A clamping member is provided on the outer wall of the inner cylinder. A sliding groove is provided in the longitudinal direction of the clamping member, and the strip-shaped bodies are located in the sliding groove. The clamping member is used to fix the connecting member on the outer peripheral surface of the inner cylinder, and the chassis is located on the inner bottom surface of the annular groove.

[0011] In other embodiments, the support device includes a positioning member, a support frame, a mounting member, a rotating shaft, and a soft layer structure. The soft layer structure is fixedly pasted on the inner wall of the positioning member. The number of positioning members is two, and the two positioning members are arranged around the outer periphery of the trunk of the seedling. The shape of the positioning member is a semi-circular structure.

[0012] In other embodiments, the mounting member is fixed to the outer wall of the positioning member. The upper ends of the support frames are respectively located outside the mounting member. The rotating shaft sequentially passes through the support frame and the mounting member and is fixed by a nut.

[0013] In other embodiments, a through groove with two ends communicating with each other is provided inside the positioning member. A rope is threaded through the through groove, and the adjacent ends of the two ropes on the positioning member are fixed, thereby fixing the positioning member around the outer circumference of the trunk of the seedling.

[0014] In other embodiments, positioning grooves are respectively provided at both ends of the positioning member. Positioning pieces are respectively provided in the positioning grooves. The length of the positioning piece is greater than the length of the positioning groove, so that there is an overlapping part between two adjacent positioning pieces. A strip-shaped hole is provided in the middle part in the transverse direction of the positioning piece, and a positioning bolt is threaded through the strip-shaped holes of the overlapping positioning pieces.

[0015] Through the above technical solutions, the beneficial effects of the present invention include: (1) In the seedling planting method of the present invention, by using the installation cylinder, the soil ball at the root of the seedling can be directly placed in, and the seedling is vertically placed in the tree hole through the support device, thereby preventing the situation of root entanglement in the later stage of the seedling roots. Compared with directly placing the seedling roots in the tree hole and filling the soil for planting, its later growth and development are better; (2) In addition, the planting method of the present invention adopts layered irrigation. After the seedling is planted, in the last irrigation step, by means of the structure of the installation cylinder, layered irrigation from the bottom to the top of the root of the seedling is realized. This method can prevent the phenomenon of soil settlement and layering caused by irrigation from the top to the bottom, and at the same time, it can also control the irrigation water volume of various varieties of seedlings, and the operation is simple and easy to control. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0017] Figure 1 is a schematic structural view of the installation cylinder of the present invention.

[0018] Figure 2 is an exploded view of the structure of the installation cylinder of the present invention.

[0019] Figure 3 is a schematic structural view of the installation cylinder of the second embodiment of the present invention.

[0020] Figure 4 is an exploded view of the structure of the installation cylinder of the third embodiment of the present invention.

[0021] Figure 5 is the Figure 4 A-part enlarged view of the present invention.

[0022] Figure 6 is theFigure 4 Enlarged view of part B.

[0023] Figure 7 It is a schematic structural view of the support device of the present invention.

[0024] Explanation of reference numerals 10. Installation cylinder; 11. Inner cylinder; 111. Cylindrical space; 112. Filter holes; 113. Annular groove; 114. Handle; 115. Fastening member; 116. Slide groove; 12. Outer cylinder; 121. Interlayer; 122. Flared opening; 13. Water inlet baffle; 131. Annular body; 132. Circular ring baffle; 133. Filtered water inlet holes; 141. Chassis; 142. Filter net; 143. Connecting member; 144. Strip-shaped body. 20. Support device; 21. Positioning member; 211. Positioning groove; 212. Positioning piece; 213. Slotted hole; 23. Support frame; 24. Mounting member; 25. Rotating shaft; 26. Soft body layer structure; 27. Nut. Specific embodiments

[0025] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Many specific details are set forth in the following description in order to fully understand the present invention, but the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below. First embodiment

[0026] The present invention provides a method for planting greening seedlings, which specifically includes the following steps: Step S1: Dig a tree hole, and the shape of the tree hole is dug according to the structure close to the cylindrical space. Specifically, the diameter of the upper opening of the tree hole is almost the same as the diameter of the bottom circle, and the diameter difference between the two is controlled within 2-5 cm; Step S2: As Figure 1 shown, it is a schematic structural view of the installation cylinder 10 in the first embodiment of the present invention. In step S2 of this embodiment, in the tree hole dug in step S1, the installation cylinder 10 is placed. Among them, the diameter of the largest circle of the cross-section of the installation cylinder 10 is smaller than the diameter of the same position of the above tree hole, and the diameter difference between the two is between 1-3 cm. After the installation cylinder 10 is placed in the tree hole, the bottom of the installation cylinder 10 abuts against the bottom of the tree hole. As Figure 1 and Figure 2 shown, the installation cylinder 10 is internally provided with an interlayer 121 and a cylindrical space 111, and the interlayer 121 is located on the outer peripheral wall of the cylindrical space 111; Step S3: First, lay nutrient soil at the bottom of the tree hole within the cylindrical space 111. Then, place the root ball of the selected nursery stock into the cylindrical space 111, placing the nursery stock vertically. After that, put backfill soil into the cylindrical space 111 outside the roots of the nursery stock. Step S4: Water the middle sandwich layer 121 of the installation cylinder 10 in portions. During the successive watering process, gradually increase the height of this sandwich layer 121 and compact the backfill soil within the cylindrical space 111 until all the backfill soil within the cylindrical space 111 is thoroughly watered. Step S5: Finally, the entire installation cylinder 10 can be removed. Since the entire installation cylinder 10 is a tubular structure with a middle connection, and for the seedlings of general greening nursery stock, the volume of their root systems is usually larger than that of the tree trunks. Therefore, after removing the installation cylinder 10 from the soil, it can be removed from the tree trunk from bottom to top, and the tree trunk will not be damaged. Especially during the planting process of the nursery stock, the excess branches and leaves of the saplings will also be pruned to prevent excessive water loss after transplantation. Therefore, the step of completely removing the entire installation cylinder 10 can be achieved. Then, put backfill soil into the gap left by it. In other preferred embodiments, the installation cylinder 10 can be made of a material that is easily decomposed, and after the greening nursery stock is installed, there is no need to remove the installation cylinder 10, and it will decompose naturally.

[0027] Please refer to Figure 1 and Figure 2 As shown, the installation cylinder 10 in this embodiment is a tubular structure with openings at both the upper and lower ends. The installation cylinder 10 is provided with an outer cylinder 12 and an inner cylinder 11 sleeved inside the outer cylinder 12. The inner cylinder 11 forms a cylindrical space 111. A sandwich layer 121 is formed between the outer cylinder 12 and the inner cylinder 11. The height of the inner cylinder 11 is greater than that of the outer cylinder 12. Several handles 114 are provided at the edge of the upper port of the inner cylinder 11. The upper end of the outer cylinder 12 is provided with an outward-expanded opening 122. A plurality of filter holes 112 are provided on the outer peripheral wall of the bottom of the inner cylinder 11. An annular groove 113 is provided on the outer side of the filter holes 112. The outer wall of the annular groove 113 is in movable contact with the inner wall of the outer cylinder 12.

[0028] The specific operation of the planting method in this embodiment is to place the installation cylinder 10 in the tree pit. Among them, the height of the outer cylinder 12 of the installation cylinder 10 is greater than the depth of the tree pit. After placing the greening seedlings in the installation cylinder through step S2 and planting the seedlings in step S3, finally, step S4, the watering link is carried out. Specifically, the watering process is as follows: According to the variety, volume of the seedlings and the requirements of the growth environment, the optimal water requirement for the planted seedlings is designed, and the total number of watering times is calculated. Then, water is first poured into the interlayer 121 in the outer cylinder 12. The water flow enters the bottom of the annular groove 113 at the bottom of the interlayer 121 and enters the soil in the cylindrical space 111 through the filter holes 112. When watering for the first time, since its bottom is connected to the underground soil, the amount of water for the first watering needs to be increased. After completing this watering, the handle 114 at the edge of the upper port of the inner cylinder 11 can be pulled upward to drive the inner cylinder 11 to move upward. At the same time, the annular groove 113 also moves upward by a certain distance. Then, water is poured into the upper end of the interlayer 121. After completing this watering, the handle 114 is pulled upward in turn to gradually and fully complete the watering of all the backfill soil in the cylindrical space 111. In addition, during each watering process, the soil needs to be tamped. Thus, watering is carried out layer by layer from bottom to top, which can achieve sufficient watering of the soil around the seedlings. Moreover, the design of the installation cylinder 10, especially the design of the inner cylinder 11 and the outer cylinder 12, can place the backfill soil at the root of the seedlings in a fixed space for tamping, which can improve the tamping degree of the surrounding soil and is beneficial to the survival of the seedlings.

[0029] In the greening seedling planting method in this embodiment of the present invention, specifically, step S1, digging a tree pit, step S2, placing the installation cylinder 10, step S3, planting the seedlings, step S4, watering in batches, and step S5, removing the installation cylinder 10 are sequentially adopted. This planting method mainly uses tools such as the installation cylinder 10 for auxiliary planting. Specifically, in steps S2, S3, and S4, the installation cylinder 10 tool is used to thoroughly water and tamp the roots of the seedlings, so that the roots of the just-planted greening seedlings can achieve the purpose of watering layer by layer from bottom to top, preventing the settlement and stratification of the soil during the watering process, which may affect the later growth process of the trees. The second embodiment

[0030] In the second embodiment of the present invention, as Figure 3As shown, the installation cylinder 10 is further provided with a water inlet baffle 13. The water inlet baffle 13 includes an annular body 131 and a circular ring baffle 132 connected to the bottom surface of the annular body 131. The diameter of the circular ring baffle 132 is larger than the diameter of the inner cylinder 11 and smaller than the diameter of the outer cylinder 12. The circular ring baffle 132 is provided with filtering water inlet holes 133. Here, the water inlet baffle 13 can be directly sleeved on the inner cylinder 11, and the circular baffle 132 is clamped inside the outwardly expanding opening 122 of the outer cylinder 12, and it can be stably clamped. Thus, when watering the water source, the water flows into the interlayer 121 through the filtering water inlet holes 133, which can prevent some sundries such as leaves in the garden environment from entering the interlayer and affecting normal watering. The third embodiment

[0031] In the third embodiment of the present invention, as Figure 4 shown, the installation cylinder of this embodiment is further provided with a filtering device. Similarly, for the purpose of filtering sundries, the filtering device of this embodiment is provided with a chassis 141, a filter net 142 and a connecting piece 143 that are connected in sequence. In addition, please refer to Figure 5 and Figure 6 shown, the inner wall of the connecting piece 143 of this embodiment is provided with four strip-shaped bodies 144 (other quantities can also be set in other embodiments). The outer wall of the inner cylinder 11 is provided with two clamping members 115. Each clamping member 115 is provided with two sliding grooves 116 in the longitudinal direction. The strip-shaped bodies 144 are clamped in the sliding grooves 116 from top to bottom. The clamping members 115 are used to fix the connecting piece 143 on the outer peripheral surface of the inner cylinder 11. The chassis 141 is located at the inner bottom surface of the annular groove 113, and the filter net 142 can completely cover all the filter holes 112. Here, the filter net 142 can prevent the soil or other sundries in the cylindrical space 111 from blocking the filter net. The fourth embodiment

[0032] The difference between the fourth embodiment of the present invention and the first embodiment is that in step S3 of this embodiment, first, nutrient soil is laid at the bottom of the tree hole in the cylindrical space 111, then the root ball of the selected seedling is placed into the cylindrical space 111, and then a support device 20 is installed on the trunk of the seedling to adjust the support device 20 to fix the seedling in the vertical direction and ensure that there is a distance between the bottom of the root of the seedling and the tree hole. After that, backfill soil is put into the cylindrical space 111 outside the root of the seedling. Here, the distance between the lowest end of the root of the seedling and the bottom of the tree hole is between 5 and 35 cm, which is set according to the root development requirements of different trees. The purpose of setting this distance is to prevent the root system of the seedling from directly abutting against the lowest end of the tree hole, thereby affecting the development of the root, especially causing the situation of root binding.

[0033] As Figure 7As shown in the figure, it is a schematic structural diagram of the supporting device 20. The supporting device 20 of this embodiment is provided with a positioning member 21, a support frame 23, a mounting member 24, a rotating shaft 25 and a soft body layer structure 26. The number of the positioning members 21 is two, and the two positioning members 21 are arranged around the outer circumference of the trunk of the seedling. The shape of the positioning member 21 is a semi-circular structure body. The soft body layer structure 26 is fixedly adhered to the inner wall of the positioning member 21. The soft body layer structure 26 can be composed of sponge, silica gel or other soft materials with buffering force. The positioning member 21 is arranged around the outer circumference of the trunk, but the soft body layer structure 26 adhered to its inner wall is in direct contact with the outer surface of the trunk. Therefore, the material of the soft body layer structure 26 can be any material that can prevent the trunk from being damaged.

[0034] Please continue to refer to Figure 7 As shown in the figure, the mounting member 24 is fixed on the outer wall of the positioning member 21. The upper ends of the support frames 23 are respectively located outside the mounting member 24. The rotating shaft 25 passes through the support frame 23 and the mounting member 24 in sequence and is fixed by a nut 27. Thus, the effective height of the support frame 23 can be adjusted at any time through the rotating shaft 25, and it can be set according to the planting requirements of seedlings with different volumes, with relatively high flexibility.

[0035] In this embodiment, positioning grooves 211 are respectively provided at both ends of the positioning member 21, and positioning pieces 212 are respectively arranged in the positioning grooves 211. The length of the positioning piece 212 is greater than the length of the positioning groove 211. Thus, there is an overlapping part between two adjacent positioning pieces 212. A strip-shaped hole 213 is provided at the horizontal middle part of the positioning piece 212. A positioning bolt (not marked in the figure) is passed through the strip-shaped holes 213 of the overlapping positioning pieces 212. The positioning bolt can pass through the overlapping strip-shaped holes 213 and tightly ring the positioning piece 212 around the outer circumference of the trunk. Since both the soft body layer structure 26 and the positioning member 21 have a certain thickness, it is completely feasible to arrange a positioning bolt from the outside to the inside in the strip-shaped hole 213 and then fix the outer end of the positioning bolt with a nut. Moreover, the diameter size of the entire positioning member 21 can be adjusted by adjusting the overlapping length of two adjacent positioning pieces 212, so as to adapt to the fixation of the trunks of seedlings with different thicknesses.

[0036] In other embodiments, a through groove (not marked in the figure) with both ends communicating is provided inside the positioning member 21, and a rope is passed through the through groove. Thus, one end of the rope is respectively provided at both ends of the positioning member 21, and the adjacent ends of the two ropes are fixed. Thus, the positioning member 21 is fixed around the outer circumference of the trunk of the seedling, and this method is more convenient to operate.

[0037] It should be noted again that the present invention aims to protect a planting method for greening seedlings. This planting method is achieved through multiple steps. In the steps of planting seedlings and watering, the installation cylinder 10 is used as an auxiliary tool to achieve layered and gradual watering and prevent soil settlement. In addition, a support device 20 is also used in the process of planting seedlings. This support device 20 can be used as another auxiliary tool to fix the height and angle of the seedlings during the planting process. Moreover, after the planting is completed, it can continue to provide support for the later growth of the greening seedlings, having the beneficial effects of adjustable height and diameter, completely replacing the later ordinary wooden stake support, and the support device 20 will not cause damage to the tree trunk, etc.

[0038] Through the above technical solutions, the beneficial effects of the present invention include: (1) In the seedling planting method of the present invention, the installation cylinder 10 is adopted, and the root ball of the seedling can be directly placed in it. Moreover, the seedling is vertically placed in the tree hole through the support device 20, thereby preventing the situation of root entanglement in the later stage of the seedling roots. Compared with directly placing the seedling roots in the tree hole and filling it with soil for planting, its later growth and development are better. (2) In addition, the planting method of the present invention adopts layered irrigation. After the seedlings are planted, in the last irrigation step, by virtue of the structure of the installation cylinder 10, layered irrigation from the bottom up to the root of the seedling is realized. This method can prevent the phenomenon of soil settlement and stratification caused by top-down irrigation, and at the same time, it can also control the irrigation water volume for each variety of seedlings, with simple operation and easy control.

[0039] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

Claims

1. A method for planting greening seedlings, characterized in that: The following steps are involved: Step S1: digging a tree hole, wherein the shape of the tree hole is dug according to a cylindrical space structure; Step S2: placing the installation tube (10), wherein the installation tube (10) is placed in the tree hole dug in step S1, the bottom of the installation tube (10) abuts against the bottom of the tree hole, and the interior of the installation tube (10) is provided with an interlayer (121) and a cylindrical space (111), and the interlayer (121) is located on the outer peripheral wall of the cylindrical space (111); Step S3: firstly, nutrient soil is laid in the cylindrical space (111) and at the bottom of the tree hole, then the selected soil ball of the seedling root is placed in the cylindrical space (111), then a support device (20) is installed on the trunk of the seedling, and the support device (20) is adjusted to fix the seedling in the vertical direction and ensure that a distance is set between the bottom of the seedling root and the tree hole, and then backfill soil is placed in the cylindrical space (111) and outside the seedling root; Step S4: watering the interlayer (121) in the middle of the installation cylinder (10) in batches. During the watering process, the height of the interlayer (121) is gradually increased, and the backfill soil in the cylindrical space (111) is compacted until all the backfill soil in the cylindrical space (111) is watered thoroughly.

2. The greening seedling planting method according to claim 1, characterized in that: The installation cylinder (10) is a cylindrical structure with openings at both the upper and lower ends. The installation cylinder (10) comprises an outer cylinder (12) and an inner cylinder (11) sleeved inside the outer cylinder (12). The inner cylinder (11) forms a cylindrical space (111). An interlayer (121) is formed between the outer cylinder (12) and the inner cylinder (11). The height of the inner cylinder (11) is greater than the height of the outer cylinder (12).

3. The greening seedling planting method according to claim 2, characterized in that: The upper end of the outer cylinder (12) is provided with an outwardly flared opening (122), the outer peripheral wall of the bottom of the inner cylinder (11) is provided with a plurality of filter holes (112), the outer side surfaces of the filter holes (112) are provided with an annular groove (113), and the outer wall of the annular groove (113) is movably abutted against the inner wall of the outer cylinder (12).

4. The greening seedling planting method according to claim 2 or 3, characterized in that: It also comprises a water inlet baffle (13), the water inlet baffle (13) comprising an annular body (131) and a circular baffle (132) connected to the bottom surface of the annular body (131), the diameter of the circular baffle (132) being larger than the diameter of the inner cylinder (11) and smaller than the diameter of the outer cylinder (12), and a filtering water inlet hole (133) being provided on the circular baffle (132).

5. The greening seedling planting method according to claim 2 or 3, characterized in that: A plurality of handles (114) are provided at the edge of the upper end of the inner cylinder (11).

6. The greening seedling planting method according to claim 3, characterized in that: The invention also comprises a filtering device, the filtering device comprising a base plate (141), a filter screen (142) and a connecting member (143) connected in sequence, the inner wall of the connecting member (143) being provided with a plurality of strip-shaped bodies (144), the outer wall of the inner cylinder (11) being provided with a clamping member (115), the clamping member (115) being provided with a slide groove (116) in the longitudinal direction, the strip-shaped body (144) being located in the slide groove (116), the clamping member (115) being used for fixing the connecting member (143) on the outer peripheral surface of the inner cylinder (11), and the base plate (141) being located on the inner bottom surface of the annular groove (113).

7. The greening seedling planting method according to claim 1, characterized in that: The support device (20) comprises a positioning member (21), a support frame (23), a mounting member (24), a rotating shaft (25) and a soft layer structure (26); the soft layer structure (26) is fixedly adhered to the inner wall of the positioning member (21); there are two positioning members (21); the two positioning members (21) are arranged around the outer circumference of the trunk of the seedling; and the positioning member (21) is in the shape of a semi-arc structure.

8. The greening seedling planting method according to claim 7, characterized in that: The mounting member (24) is fixed to the outer wall of the positioning member (21), the upper ends of the support frames (23) are respectively located outside the mounting members (24), and the rotating shaft (25) passes through the support frame (23) and the mounting member (24) in sequence and is fixed by a nut (27).

9. The greening seedling planting method according to claim 7, characterized in that: The positioning member (21) is provided with a through groove with two connected ends inside, and a rope is passed through the through groove to fix the adjacent ends of the two ropes on the positioning member (21), thereby fixing the positioning member (21) to the outer periphery of the trunk of the seedling.

10. The greening seedling planting method according to claim 7, characterized in that: Positioning grooves (211) are respectively provided at both ends of the positioning member (21), and positioning pieces (212) are respectively provided in the positioning grooves (211). The length of the positioning pieces (212) is greater than the length of the positioning grooves (211), thereby providing an overlapping portion between two adjacent positioning pieces (212). A strip-shaped hole (213) is provided in the transverse middle portion of the positioning pieces (212), and positioning bolts are inserted into the strip-shaped holes (213) of the overlapping positioning pieces (212).

Images