Seedling raising device for forestry

Abstract

The invention relates to the field of forestry, in particular to a forestry seedling raising device which comprises a plurality of combined seedling raising mechanisms, and each combined seedling raising mechanism comprises a combined mounting module and a deflection seedling raising module arranged on the combined mounting module. Through combination of an ingenious modular mechanical structure and an integrated liquid conveying system, multiple breakthroughs of the forestry seedling culture device in the aspects of spatial layout flexibility, illumination management accuracy, efficient and automatic water and fertilizer supply and operation and maintenance convenience are successfully realized; according to the method, the growth quality and uniformity of the seedlings can be remarkably improved, the land and space utilization rate can be effectively increased, the labor management cost is reduced, and the method is particularly suitable for large-scale, intensive and high-quality forestry seedling production and has good economic benefits and application prospects.

Description

Technical Field

[0001] This invention relates to the field of forestry, and in particular to a seedling raising device for forestry. Background Technology

[0002] Forestry seedling cultivation is the primary link in forest resource cultivation, ecological restoration, and economic forest construction. Its efficiency and quality directly affect the effectiveness of afforestation and tree growth. Traditional seedling cultivation methods mainly rely on open-air seedbed planting, which requires a large area, has poor environmental controllability, consumes a lot of water resources, and is easily affected by natural climate and pests and diseases, making it difficult to meet the development needs of modern forestry for large-scale, intensive, and industrialized development.

[0003] To improve space utilization and standardization of seedling cultivation, container seedling cultivation and tiered vertical cultivation methods are gradually being adopted. These methods, by using fixed-size seedling pots or trays arranged on multi-tiered shelves, increase the number of seedlings per unit area to some extent. However, existing technologies still have several significant drawbacks in practical applications, hindering further improvements in their efficiency: First, there is a bottleneck in light management. In multi-tiered trellis cultivation, the upper seedlings block sunlight, leaving the middle and lower seedlings in a low-light environment. This easily leads to excessive growth and weakness in the lower seedlings, resulting in uneven growth and inconsistent quality, seriously affecting the uniformity of the seedlings upon delivery. Although this can be alleviated by supplementing with artificial light or increasing the spacing between layers, this brings new problems such as a surge in energy consumption or a decrease in space utilization. Most existing devices have fixed structures and cannot flexibly adjust the light-receiving posture of individual plants or local areas according to the angle of sunlight, resulting in low efficiency in utilizing natural light.

[0004] Secondly, the uniformity and precision of water and fertilizer supply are insufficient. Traditional manual irrigation or simple drip irrigation methods, when used in densely packed, multi-layered systems, make it difficult to ensure that each seedling container receives an equal amount of fully mixed water and nutrients. This easily leads to irrigation dead zones, or significant differences in liquid supply between the beginning and end of the pipeline due to excessive length and uneven pressure. Furthermore, liquid fertilizers are prone to sedimentation during transport, further affecting the uniformity of nutrient supply and hindering balanced seedling growth. Existing systems also suffer from low levels of automation and integration, making management and maintenance inconvenient.

[0005] Furthermore, the structural flexibility and adaptability of the equipment are poor. Most shelving or seedling raising devices are integrated or fixed unit designs, and their size, shape, and arrangement angle are not adjustable. This makes it difficult to adapt to the differentiated needs of different terrains, different seedling stages, or different tree species. The equipment lacks versatility, and the cost of reconfiguration or expansion is high.

[0006] Furthermore, the stability and precision of rhizosphere environment control need improvement. Traditional water supply methods for container seedling cultivation often lead to drastic "dry-wet" cycles in substrate moisture, which is detrimental to the continuous and healthy development of the root system. Creating a stable, well-aerated, and continuously nutrient-rich water-air environment for the roots is key to improving seedling quality, but current technologies lack sophisticated design in this regard.

[0007] The present invention aims to solve the technical problems existing in the prior art, and to this end, a seedling raising device for forestry is proposed. Summary of the Invention

[0008] The purpose of this invention is to provide a seedling raising device for forestry, so as to solve the technical problems existing in the prior art.

[0009] By adopting the above technical solution, the present invention has the following beneficial effects: The present invention provides a seedling raising device for forestry, comprising several combined seedling raising mechanisms, wherein the combined seedling raising mechanism includes a combined installation module and a deflection seedling raising module disposed thereon.

[0010] As a further aspect of the present invention: the combined installation module includes two combined installation plates facing each other, and a connecting rotating column is rotatably provided between the ends of the combined installation plates. Rotating installation sleeves are provided at both ends of the combined installation plates to cooperate with the connecting rotating column.

[0011] As a further aspect of the present invention: a fixed mounting pipe is provided on one side of the combined mounting plate through several fixing rings, and telescopic connecting pipes are provided at both ends of the fixed mounting pipes. Two adjacent fixed mounting pipes are connected and installed by the telescopic connecting pipes.

[0012] As a further aspect of the present invention: the connecting rotating columns at the ends of the combined mounting plates on adjacent combined mounting modules are connected by adjusting and driving telescopic columns.

[0013] As a further aspect of the present invention: the deflection seedling module includes a deflection mounting cylinder, which is disposed between two combined mounting plates. Two hexagonal mounting posts are symmetrically arranged on the outer side of the deflection mounting cylinder. The hexagonal mounting posts on both sides are respectively facing the two combined mounting plates. A deflection driving component is provided on the combined mounting plate facing the hexagonal mounting posts. A deflection mounting disk is rotatably disposed at one end of the deflection driving component facing the hexagonal mounting posts. A semi-hexagonal mounting sleeve is disposed on one side of the deflection mounting disk in conjunction with the hexagonal mounting posts.

[0014] As a further embodiment of the present invention: one end of the deflection mounting cylinder is connected to a multi-faceted mounting cylinder, the outer side of which is smoothed, and a seedling mounting cylinder is provided in conjunction with the deflection mounting cylinder. A pair of mounting rings are symmetrically arranged at one end of the seedling mounting cylinder, and a positioning multi-faceted cylinder is provided at the other end of the seedling mounting cylinder in conjunction with the inner wall of the multi-faceted mounting cylinder. Several seedling tubes are evenly arranged on the seedling mounting cylinder opposite to the positioning multi-faceted cylinder.

[0015] As a further aspect of the present invention: a multi-faceted sponge block is provided inside the multi-faceted mounting cylinder below the positioning multi-faceted cylinder, and the multi-faceted sponge block and the seedling raising tube are both provided with seedling holes.

[0016] As a further aspect of the present invention: the lower half of the seedling tube is provided with a number of strip-shaped guide holes at equal angles on the outer side, and the strip-shaped guide holes are larger as they are closer to the bottom of the seedling tube.

[0017] As a further aspect of the present invention: each seedling tube is equipped with a mesh cylinder inside, each mesh cylinder has a limit installation ring at its upper end, and the outside of the mesh cylinder is covered with a tubular sponge.

[0018] As a further aspect of the present invention: an annular guide tube is provided on the outer side of the lower half of the multi-faceted mounting cylinder, and a synchronous guide tube is connected to each ridge of the multi-faceted mounting cylinder directly opposite the annular guide tube. One side of the annular guide tube is connected to the outer end of the synchronous guide tube, and the other side of the annular guide tube is connected to a telescopic infusion tube through a solenoid valve. The outer end of the telescopic infusion tube is connected to the fixed mounting pipe.

[0019] As a further embodiment of the present invention: two flow-blocking annular mounting plates are arranged concentrically inside the annular guide tube, and oblique guide holes are arranged at equal angles on the flow-blocking annular mounting plates, with the oblique guide holes on the two flow-blocking annular mounting plates being staggered.

[0020] Compared with the prior art, the beneficial effects of the present invention are: Modular design and high adaptability: The standardized and modular design of the device is achieved through modular installation modules consisting of modular mounting plates and connecting rotating columns. Users can flexibly increase or decrease the number of modules according to the scale of seedling cultivation, and freely adjust the spacing and overall angle between modules by adjusting the drive telescopic columns and rotating mounting sleeves. This allows the device to easily adapt to different terrains, spatial layouts, and the shape and scale requirements of the seedling cultivation stage, greatly improving the versatility of the equipment and the site utilization rate.

[0021] Optimized lighting enhances seedling quality and density: The core deflection seedling module, through the cooperation of deflection drive components, hexagonal mounting columns, and semi-hexagonal mounting sleeves, enables independent tilt angle adjustment for each seedling unit. Combined with the smooth surface of the multi-faceted mounting cylinder, which reduces diffuse reflection, this design effectively reflects or guides light from the upper layers to the lower layers, allowing for manual or automatic adjustment of the seedling's light angle based on the sun's orientation. This significantly improves the uniformity and intensity of light for seedlings in the middle and lower layers, effectively solving the problem of insufficient light in the lower layers of traditional tiered seedling cultivation. This allows for an increase in the number of cultivation layers without sacrificing light exposure per plant, significantly increasing the seedling yield per unit area and the uniformity of seedlings.

[0022] Integrated and automated water and fertilizer supply system: The device incorporates an integrated delivery network consisting of a fixed installation pipe, a telescopic connecting pipe, a telescopic infusion pipe, an annular guide cylinder, and solenoid valves. This system enables centralized and precise delivery from external supply equipment to each seedling tube. In particular, the flow-blocking annular installation plate with staggered oblique guide holes inside the annular guide cylinder can turbulentize the water and fertilizer during delivery, promoting thorough mixing, preventing sedimentation, ensuring uniform nutrient supply, and improving water and fertilizer utilization efficiency and supply quality.

[0023] Stable root environment and efficient nutrient supply: The seedling tubes inside the seedling installation cylinder are scientifically designed. The strip-shaped guide holes in the lower half (with increasing diameter from top to bottom) combined with the outer cylindrical sponge allow for close contact with the positioning multi-faceted cylinder. This structure utilizes capillary action to continuously and evenly supply water and nutrients from the multi-faceted installation cylinder to the seedling substrate, avoiding the drastic fluctuations in moisture levels associated with traditional irrigation. This creates an ideal environment for seedling roots with stable humidity and good aeration, promoting healthy root development.

[0024] Easy to operate and maintain: Quick installation and replacement: The seedling section uses a mesh tube to hold the potting soil and plants. The mesh tube is easy to put in and take out with a limiting installation ring, simplifying the seedling loading and replacement process. The deflecting installation tube also achieves quick installation and fixation through the insertion of hexagonal posts and semi-hexagonal sleeves.

[0025] Easy to clean and maintain: The modular design allows for replacement of only the corresponding module in case of partial damage, resulting in low maintenance costs. The water supply pipeline is connected by telescopic connecting pipes and telescopic infusion pipes, facilitating disassembly and cleaning and preventing pipeline blockage. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a three-dimensional structural diagram of a seedling raising device for forestry.

[0028] Figure 2 This is a three-dimensional structural diagram of a combined seedling raising mechanism in a forestry seedling raising device.

[0029] Figure 3 This is a three-dimensional structural diagram of a combined installation module in a forestry seedling raising device.

[0030] Figure 4 for Figure 3 An enlarged schematic diagram of point a in the middle.

[0031] Figure 5 This is a three-dimensional structural diagram of a deflection seedling module in a forestry seedling raising device.

[0032] Figure 6 This is a partial cross-sectional schematic diagram of a deflection seedling module in a forestry seedling raising device.

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure below the seedling installation cylinder in a forestry seedling raising device.

[0034] Figure 8 This is a three-dimensional structural diagram of a seedling raising tube in a forestry seedling raising device.

[0035] Figure 9 This is a three-dimensional structural diagram of a cylindrical sponge in a forestry seedling raising device.

[0036] Figure 10 This is a partial cross-sectional schematic diagram of a cylindrical sponge used in a forestry seedling raising device.

[0037] Figure 11 This is a half-sectional schematic diagram of an annular guide tube in a forestry seedling raising device.

[0038] 1-Combined mounting plate, 2-Deflection mounting cylinder, 3-Multi-faceted mounting cylinder, 4-Seedling mounting cylinder, 5-Connecting rotating column, 6-Fixed mounting tube, 7-Annular guide cylinder, 8-Adjustable drive telescopic column, 9-Hanging mounting ring, 10-Rotating mounting sleeve, 11-Fixed ring, 12-Deflection drive component, 13-Telescopic infusion tube, 14-Telescopic connecting tube, 15-Deflection mounting plate, 16-Semi-hexagonal mounting sleeve, 17-Hexagonal mounting column, 18-Seedling dividing tube, 19-Solenoid valve, 20-Synchronous guide cylinder, 21-Multi-faceted sponge block, 22-Seedling hole, 23-Flow-blocking annular mounting plate, 24-Slanted guide hole, 25-Positioning multi-faceted cylinder, 26-Strip guide hole, 27-Net cylinder, 28-Limiting mounting ring, 29-Cylindrical sponge. Detailed Implementation

[0039] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0040] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0041] Example 1, please refer to Figure 1 In this embodiment of the invention, a forestry seedling raising device includes several combined seedling raising mechanisms, wherein the combined seedling raising mechanism includes a combined installation module and a deflection seedling raising module disposed thereon.

[0042] Based on the scale of forestry seedling cultivation, select the corresponding number of combined seedling cultivation units for assembly and installation, and place them in conjunction with external shelves to achieve large-scale combined seedling cultivation operations. Specifically, the seedlings are inserted into the deflection seedling module and installed in the assembly module. The assembly modules are then connected end to end, and the angle and spacing between the assembly modules are adjusted to adjust the angle and length of the assembled seedling device to adapt to different light requirements, thus completing the seedling operation.

[0043] Example 2, based on Example 1, please refer to... Figures 1-3 In this embodiment of the invention, the combined installation module includes two combined installation plates 1 facing each other, and a connecting rotating column 5 is rotatably provided between the ends of the combined installation plates 1. Rotating installation sleeves 10 are provided at both ends of the combined installation plates 1 in cooperation with the connecting rotating column 5. One side of the combined mounting plate 1 is provided with a fixed mounting pipe 6 through a number of fixing rings 11. Both ends of the fixed mounting pipe 6 are provided with telescopic connecting pipes 14. Two adjacent fixed mounting pipes 6 are connected and installed by the telescopic connecting pipes 14. The connecting rotating column 5 at the end of the combined mounting plate 1 on the adjacent combined mounting module is connected by an adjusting drive telescopic column 8. By adjusting the drive telescopic column 8, the connecting rotating column 5 at the end of the combined installation plate 1 is connected to the connecting rotating column 5 on another combined installation module. At this time, the connecting rotating column 5 adjusts the angle between the combined installation plates 1 on the adjacent combined installation modules by rotating the installation sleeve 10, thereby realizing the adjustment of the spacing and angle of the deflection seedling module to adapt to seedling operations with different light requirements. The telescopic connecting pipe 14 connects the adjacent fixed installation pipes 6 in series. The outermost telescopic connecting pipe 14 is connected to the external liquid supply equipment, so that the external water and nutrients are stably delivered to the deflection seedling module.

[0044] Example 3, based on Example 2, please refer to... Figures 2 to 11 In this embodiment of the invention, the deflection seedling module includes a deflection mounting cylinder 2, which is disposed between two combined mounting plates 1. Two hexagonal mounting posts 17 are symmetrically arranged on the outer side of the deflection mounting cylinder 2. The hexagonal mounting posts 17 on both sides are respectively facing the two combined mounting plates 1. A deflection driving component 12 is provided on the combined mounting plate 1 facing the hexagonal mounting post 17. A deflection mounting plate 15 is rotatably disposed at one end of the deflection driving component 12 facing the hexagonal mounting post 17. A semi-hexagonal mounting sleeve 16 is provided on one side of the deflection mounting plate 15 in cooperation with the hexagonal mounting post 17. One end of the deflection mounting cylinder 2 is connected to a multi-faceted mounting cylinder 3. The outer side of the multi-faceted mounting cylinder 3 is smoothed. A seedling mounting cylinder 4 is provided in conjunction with the deflection mounting cylinder 2. A pair of mounting rings 9 are symmetrically arranged at one end of the seedling mounting cylinder 4. A positioning multi-faceted cylinder 25 is provided in conjunction with the inner wall of the multi-faceted mounting cylinder 3 at the other end of the seedling mounting cylinder 4. Several seedling division tubes 18 are evenly arranged on the seedling mounting cylinder 4 opposite to the positioning multi-faceted cylinder 25. A multi-faceted sponge block 21 is provided in the multi-faceted mounting cylinder 3 below the positioning multi-faceted cylinder 25. The multi-faceted sponge block 21 and the seedling division tubes 18 are all provided with seedling holes 22. Several strip-shaped guide holes 26 are provided at equal angles on the outer side of the lower half of the seedling division tube 18. The strip-shaped guide holes 26 are larger closer to the bottom of the seedling division tube 18. Each of the seedling tubes 18 is equipped with a mesh tube 27. Each mesh tube 27 has a limiting installation ring 28 at the upper end to facilitate the placement and removal of the mesh tube 27 inside the seedling tube 18. The outside of the mesh tube 27 is covered with a tubular sponge 29. An annular guide tube 7 is provided on the outer side of the lower half of the multi-faceted mounting cylinder 3. A synchronous guide tube 20 is connected to each edge of the multi-faceted mounting cylinder 3 directly opposite the annular guide tube 7. One side of the annular guide tube 7 is connected to the outer end of the synchronous guide tube 20. The other side of the annular guide tube 7 is connected to a telescopic infusion tube 13 through a solenoid valve 19. The outer end of the telescopic infusion tube 13 is connected to the fixed mounting tube 6. Two flow-blocking annular mounting plates 23 are provided in concentric circles inside the annular guide tube 7. The flow-blocking annular mounting plates 23 are provided with oblique guide holes 24 at equal angles. The oblique guide holes 24 on the two flow-blocking annular mounting plates 23 are staggered.

[0045] By inserting the mesh tube 27 into the seedling tube 18, then pouring in the potting soil and inserting the seedlings, the tubular sponge 29 fills the strip-shaped drainage hole 26. Then, the multi-faceted sponge block 21 is placed into the multi-faceted installation tube 3. With the cooperation of the positioning multi-faceted tube 25 and the multi-faceted installation tube 3, the seedling installation tube 4 is inserted into the deflection installation tube 2. At this time, the seedling tube 18 is inserted into the seedling hole 22 on the multi-faceted sponge block 21. The tubular sponge 29 filled in the strip-shaped drainage hole 26 contacts the multi-faceted sponge block 21, which facilitates the timely entry of nutrients and water into the seedling tube 18 through capillary effect, replenishing the soil with water and fertilizer, and promoting the healthy growth of the seedlings. Since the fixed installation pipe 6 is connected to the telescopic infusion pipe 13, external moisture and nutrients enter the multi-faceted installation cylinder 3 through the fixed installation pipe 6, the telescopic infusion pipe 13, the annular guide tube 7, and the synchronous guide tube 20. The opening and closing of the telescopic delivery pipe is controlled by the solenoid valve 19. When nutrients and water enter the annular guide tube 7 through the telescopic infusion tube 13, they pass through two flow-blocking annular mounting plates 23 in sequence. During this process, turbulence is generated from the staggered guide holes, which facilitates full mixing of nutrients and improves the efficiency and quality of nutrient delivery. By inserting the hexagonal mounting post 17 into the semi-hexagonal mounting sleeve 16, the deflection mounting cylinder can be quickly installed. At the same time, the deflection drive component 12 can adjust the rotation of the deflection mounting plate 15, thereby adjusting the tilt angle of the semi-hexagonal mounting sleeve 16 and the deflection mounting cylinder on it. Since the outer side of the multi-faceted mounting cylinder 3 is smoothed, and with the adjustment of the angle and spacing of the combined mounting module, the reflected light can be included into the light range of the seedlings in the lower deflection mounting cylinder 2, thereby improving the light of the lower seedlings and increasing the number of layers of combined seedling cultivation without affecting the light.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A seedling raising device for forestry, characterized in that, It includes several combined seedling raising mechanisms, wherein the combined seedling raising mechanism includes a combined installation module and a deflection seedling raising module installed thereon; The combined installation module includes two combined installation plates facing each other, with a connecting rotating column rotatably provided between the ends of each combined installation plate, and a rotating installation sleeve provided at both ends of the combined installation plate to cooperate with the connecting rotating column. The deflection seedling module includes a deflection mounting cylinder, which is disposed between two combined mounting plates. Two hexagonal mounting posts are symmetrically arranged on the outer side of the deflection mounting cylinder. The hexagonal mounting posts on both sides are respectively opposite to the two combined mounting plates. A deflection driving component is provided on the combined mounting plate opposite to the hexagonal mounting posts. A deflection mounting plate is rotatably disposed at one end of the deflection driving component opposite to the hexagonal mounting posts. A semi-hexagonal mounting sleeve is disposed on one side of the deflection mounting plate in conjunction with the hexagonal mounting posts.

2. The forestry seedling raising device according to claim 1, characterized in that, One side of the combined mounting plate is provided with a fixed mounting pipe through several fixing rings. Both ends of the fixed mounting pipe are provided with telescopic connecting pipes, and two adjacent fixed mounting pipes are connected and installed through the telescopic connecting pipes.

3. A forestry seedling raising device according to claim 2, characterized in that, The connecting rotating columns at the ends of the combined mounting plates on adjacent combined mounting modules are connected by adjusting the drive telescopic columns.

4. A forestry seedling raising device according to claim 1, characterized in that, One end of the deflection mounting cylinder is connected to a multi-faceted mounting cylinder. The outer side of the multi-faceted mounting cylinder is smoothed. A seedling mounting cylinder is provided in conjunction with the deflection mounting cylinder. A pair of mounting rings are symmetrically arranged at one end of the seedling mounting cylinder. A positioning multi-faceted cylinder is provided at the other end of the seedling mounting cylinder in conjunction with the inner wall of the multi-faceted mounting cylinder. Several seedling tubes are evenly arranged on the seedling mounting cylinder opposite the positioning multi-faceted cylinder.

5. A forestry seedling raising device according to claim 4, characterized in that, The multi-faceted installation cylinder below the positioning multi-faceted cylinder is equipped with multi-faceted sponge blocks, and both the multi-faceted sponge blocks and the seedling tubes are equipped with seedling holes.

6. A forestry seedling raising device according to claim 4, characterized in that, The lower half of the seedling tube has several strip-shaped guide holes at equal angles on its outer side, and the strip-shaped guide holes are larger the closer they are to the bottom of the seedling tube.

7. A forestry seedling raising device according to claim 4, characterized in that, Each seedling tube is equipped with a mesh tube inside, and each mesh tube has a limit ring at the top. The outside of the mesh tube is covered with a tubular sponge.

8. A forestry seedling raising device according to claim 4, characterized in that, An annular guide tube is provided on the outer side of the lower half of the multi-faceted mounting cylinder. A synchronous guide tube is connected to each edge of the multi-faceted mounting cylinder directly opposite the annular guide tube. One side of the annular guide tube is connected to the outer end of the synchronous guide tube. The other side of the annular guide tube is connected to a telescopic infusion tube through a solenoid valve. The outer end of the telescopic infusion tube is connected to the fixed mounting pipe.

9. A forestry seedling raising device according to claim 8, characterized in that, The annular guide tube has two concentric annular mounting plates for flow obstruction. The annular mounting plates are provided with oblique guide holes at equal angles, and the oblique guide holes on the two annular mounting plates are staggered.

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