Codonopsis pilosula seedling culture nutrient solution conveying device

Abstract

The invention relates to the technical field of codonopsis pilosula seedling culture, and discloses a codonopsis pilosula seedling culture nutrient solution conveying device which comprises a seedling culture box. The supporting rings are arranged in the seedling raising box, seedling raising cups are placed on the supporting rings, each seedling raising cup is of a filter screen structure, rotating rings are rotatably arranged on the supporting rings, a plurality of spraying pipes are fixedly connected to the rotating rings, and the spraying ends of the spraying pipes face the axis direction of the supporting rings; the three-way valve is respectively communicated with a cleaning water pipe, a nutrient solution pipe and a communicating pipe, and the communicating pipe is communicated with a plurality of spray pipes; the driving mechanism is arranged on the seedling raising box and used for driving the multiple rotating rings to rotate, it can be avoided that much old nutrient solution is left on the roots of codonopsis pilosula seedlings, the root rotting phenomenon is reduced, and the survival rate of the codonopsis pilosula seedlings is effectively increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of radix codonopsis seedling, in particular to a kind of radix codonopsis seedling nutrient solution conveying device. BACKGROUND

[0002] Radix codonopsis is a kind of traditional Chinese medicine for tonifying qi and spleen, with the effects of enhancing physical strength, improving fatigue, promoting digestion and absorption, and improving immunity, and is often used to relieve symptoms such as body fatigue, poor appetite and pale face caused by deficiency of qi and blood.

[0003] Nutrient solution seedling is a modern seedling method, which is a seedling method of adding nutrient solution suitable for plant growth in soilless medium and planting artificially in incubator, and is suitable for rapid planting of radix codonopsis.

[0004] During the process of nutrient solution seedling, bacteria are easily bred in nutrient solution containing high nutrients, which causes water quality deterioration and leads to root rot phenomenon of radix codonopsis seedlings soaked for a long time. In order to avoid the root rot phenomenon, the nutrient solution needs to be replaced regularly. However, the conventional nutrient solution conveying device only discharges the nutrient solution for replacement and cannot clean the roots of radix codonopsis seedlings, so the root rot phenomenon is still likely to occur after the nutrient solution is replaced. SUMMARY

[0005] The present application aims to provide a radix codonopsis seedling nutrient solution conveying device, which aims to solve or improve at least one of the above technical problems.

[0006] To achieve the above-mentioned purpose, the present application provides the following scheme: the present application provides a radix codonopsis seedling nutrient solution conveying device, comprising:

[0007] a seedling box;

[0008] a plurality of support rings arranged in the seedling box, the support rings are used for placing seedling cups, the seedling cups are filter screen structures, a rotating ring is rotatably arranged on the support ring, a plurality of spray pipes are fixedly connected to the rotating ring, and the spray pipes are arranged in the axial direction of the support ring;

[0009] a three-way valve, which is respectively communicated with a cleaning water pipe, a nutrient solution pipe and a communication pipe, the communication pipe is communicated with the plurality of spray pipes;

[0010] a driving mechanism arranged on the seedling box, the driving mechanism is used for driving the plurality of rotating rings to rotate.

[0011] Optionally, the driving mechanism comprises:

[0012] a plurality of worm gears, which are fixedly connected to the plurality of rotating rings one by one;

[0013] A rotating rod is rotatably connected in the seedling box, and a plurality of worm gears are coaxially and fixedly connected to the rotating rod, and the plurality of worm gears are in engagement with the plurality of worm wheels one by one.

[0014] A driving source is configured to drive the rotating rod to rotate.

[0015] Optionally, the driving source comprises:

[0016] An electric sliding rail is arranged on the seedling box, and an electric sliding block is slidingly connected to the electric sliding rail, and a mounting plate is fixedly connected to the electric sliding block.

[0017] A transmission rod is rotatably connected in the seedling box, and the transmission rod is in transmission cooperation with the rotating rod through a gear set, a spiral sliding groove is arranged on the transmission rod, a sliding sleeve with a guide sliding block is slidingly connected to the spiral sliding groove, and the sliding sleeve is fixedly connected to the mounting plate.

[0018] Optionally, the gear set comprises:

[0019] A first straight gear is fixedly connected to the rotating rod.

[0020] A second straight gear is fixedly connected to the transmission rod, and the second straight gear is in engagement with the first straight gear.

[0021] Optionally, the communication pipe comprises a plurality of communication segments, a support ring is fixedly connected between two adjacent communication segments, two communication segments at two ends are fixedly connected to the seedling box, a communication cavity is arranged in the support ring, the communication cavity is in communication with the communication segments, a plurality of communication openings are arranged on the rotating ring and in communication with the communication cavity, and the plurality of communication openings are in communication with the plurality of spray pipes.

[0022] Optionally, the support ring is provided with a support sliding table for supporting the rotating ring.

[0023] Optionally, a gap is arranged between the bottom end of the seedling cup and the inner bottom surface of the seedling box, a gas cylinder is fixedly arranged on the mounting plate, an output end of the gas cylinder is fixedly connected to an elastic spring rod, and a scraper is fixedly connected to the elastic spring rod, and the scraper is used to abut against the inner bottom surface of the seedling box.

[0024] Optionally, slope surfaces are arranged at two ends of the seedling box along the sliding direction of the electric sliding block.

[0025] Optionally, a drainage pipe with an opening and closing valve is arranged at the slope surface.

[0026] Optionally, a plurality of support legs are arranged on the bottom surface of the seedling box.

[0027] The application discloses the following technical effects: when the nutrient solution needs to be replaced, the nutrient solution is discharged from the seedling raising box, then the cleaning water is communicated with the cleaning water pipe through cleaning, the cleaning water is pumped into the spray pipe, the driving mechanism drives the plurality of rotating rings to rotate, the plurality of spray pipes on the rotating rings are driven to rotate around the seedling cup in the circumferential direction, the seedling cup is a filter screen structure, the cleaning water sprayed from the spray pipe is used for cleaning the roots of the codonopsis pilosula seedlings in the seedling cup, the codonopsis pilosula seedlings roots are prevented from remaining more old nutrient solution, the root rot phenomenon is reduced, and the survival rate of the codonopsis pilosula seedlings is effectively improved; after the roots of the codonopsis pilosula seedlings are cleaned, the nutrient solution is communicated with the nutrient solution pipe, the nutrient solution is pumped into the spray pipe, and the nutrient solution is sprayed into the seedling raising box by the spray pipe, so that the nutrient solution is used for soaking the roots of the codonopsis pilosula seedlings to raise seedlings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments illustrated in the drawings are provided to explain embodiments of the present application and not to limit the present application. In the drawings:

[0029] Figure 1 It is a schematic diagram of the overall structure of the application;

[0030] Figure 2 It is a schematic diagram of the support ring and the seedling cup structure of the application; Figure 1 It is a partial enlarged view of A in the figure;

[0031] Figure 3 It is a schematic diagram of the support ring and the seedling cup structure of the application;

[0032] Figure 4 It is a sectional view of the support ring and the seedling cup of the application;

[0033] Figure 5 It is a bottom view of the application.

[0034] In the figure: 1, seedling raising box; 2, support ring; 3, seedling cup; 4, rotating ring; 5, spray pipe; 6, three-way valve; 7, cleaning water pipe; 8, nutrient solution pipe; 9, communication pipe; 10, worm gear; 11, rotating rod; 12, worm; 13, electric sliding rail; 14, electric sliding block; 15, mounting plate; 16, transmission rod; 17, spiral sliding groove; 18, sliding sleeve; 19, first straight gear; 20, second straight gear; 21, communication cavity; 22, communication port; 23, support sliding table; 24, air cylinder; 25, telescopic spring rod; 26, scraper; 27, slope surface; 28, opening and closing valve; 29, liquid discharge pipe; 30, support leg. DETAILED DESCRIPTION

[0035] The concentration of nitrogen, phosphorus and other nutrients in the nutrient solution is too high, which promotes the reproduction of algae and causes the deterioration of water quality. Meanwhile, the high conductivity or nutrient deficiency also affects the absorption of nutrients by the roots and causes root rot.

[0036] The replacement period of the vegetation nutrient solution needs to be determined according to the crop type, growth stage, and solution state:

[0037] Leafy vegetables (such as lettuce, spinach): replace every 7-10 days;

[0038] Solanaceous fruits (such as tomatoes, cucumbers): replace every 3-5 days;

[0039] Long-term crops (such as trees, flowers): replace every 1-2 weeks, or after each planting;

[0040] Water quality pollution (such as turbidity, odor, algae growth): replace immediately;

[0041] PH fluctuation (outside the range of 6-7.5): adjust or replace immediately;

[0042] High-temperature environment (such as summer): it is recommended to shorten to 5 days or replace every week;

[0043] Low-temperature environment (such as winter): can be extended to 10-15 days or replaced every month.

[0044] The existing Chinese patent discloses a special nutrient solution for soilless seedling of radix codonopsis CN108064647A, which solves the key problem of seedling cultivation room for radix codonopsis planting, but traditional radix codonopsis seedling is open-air seedling, relying on the weather, drought and flood do not change, and the pollution of pesticides and heavy metals to the soil for many years seriously affects the yield and quality of radix codonopsis seedlings. Therefore, the soilless facility seedling technology is the only way to solve the above problems. The key to realize soilless seedling is the supply of nutrients. However, the general facility cultivation technology cannot meet the requirements of radix codonopsis for mild and cool environment. At the same time, some researchers try to use plant residues, pomelo peel, chestnut shell, plant extracts, biogas residue, animal manure and other mixed as the soilless cultivation medium and nutrient source of radix codonopsis, but it either increases the preparation cost or has potential sources of pest pollution, so that radix codonopsis seedling cultivation is prone to diseases and pests. The technical scheme is that each liter of nutrient solution contains the following components: potassium dihydrogen phosphate 40mg; magnesium sulfate 160mg; calcium nitrate (sulfate) 220mg; ferrous sulfate heptahydrate 4mg; EDTA 10mg; boric acid 0.006mg; manganese sulfate 0.05mg; potassium nitrate 160mg; zinc sulfate 0.02mg; copper sulfate 0.000025mg; molybdate 0.0004mg; ammonium nitrate 20mg; potassium iodide 0.002mg; cobalt chloride 0.00005mg; the balance is water. The combination of various components contains various macro-and microelements necessary for the growth and development of radix codonopsis seedlings, and the components synergize with each other to promote the growth and development of radix codonopsis seedlings. The special nutrient solution for soilless green seedling of radix codonopsis provided by the present application, combined with the radix codonopsis soilless green seedling method, can cultivate uniform radix codonopsis seedlings with an average height of 35cm, a stem diameter of 0.3cm, a low incidence (0.011.00%), and a yield of 280-400 thousand plants per mu. Compared with the traditional radix codonopsis seedling method, the yield per mu is increased by 45 times, the production efficiency is greatly improved, and the cost of radix codonopsis seedlings is reduced.

[0045] The existing Chinese patent discloses a radix codonopsis seedling nutrient solution conveying device CN115669525A, which solves the problem that the growth period is too long when radix codonopsis seedlings are placed in a greenhouse for normal growth. To solve this problem, a radix codonopsis seedling nutrient solution conveying device is proposed, which has the technical scheme that the user first opens the glass cover when cultivating radix codonopsis, then places the radix codonopsis seedlings inside the culture structure, then covers the glass cover, then starts the variable frequency motor, which rotates the stirrer, scraper and scraper brush to stir the internal nutrient solution to prevent precipitation, then controls the structure to enter the internal conveying structure, and then starts the small pump to drive the nutrient solution to flow, so that it flows into the spraying structure through the liquid outlet and the liquid outlet hole, and then flows into the radix codonopsis culture device, so that the radix codonopsis can grow and develop vigorously.

[0046] The existing Chinese patent discloses a kind of intelligent vegetable planting nutrient solution conveying system CN113994882A, and its technical problem is that when the vegetable is planted using traditional soilless culture technique, it is often cultivated using fixed type, since the cultivation pot is fixedly distributed in each cultivation room, and the illumination condition in each cultivation room is different, leading to that the vegetables in some cultivation pots grow luxuriantly due to sufficient illumination, while the vegetables in some cultivation pots appear to grow weak due to poor illumination, affect the yield and quality of vegetables, it is difficult to systematize control the quality of vegetables in each cultivation room, therefore it needs to be improved, and its technical scheme is that motor is started to drive first rotating rod to rotate, first rotating rod rotates to drive first sprocket to rotate, under the transmission of chain, the rotation of first sprocket drives second sprocket to rotate, under the connection of support rod, chain moves to drive boom to move under the mutual cooperation between first sliding groove and first sliding block, the movement of boom drives cultivation pot to move under the mutual cooperation between second sliding groove and second sliding block, so that each cultivation pot moves along the track of track, so as to ensure that each cultivation pot can be illuminated to carry out photosynthesis, and the quality of vegetables in each cultivation pot is ensured, and the illumination condition of vegetables in cultivation pot is conveniently systematized controlled.

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0048] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail in combination with the drawings and specific embodiments.

[0049] With reference to Figures 1-5 The present application provides a kind of party's seedling nutrient solution conveying device, including:

[0050] Seedling box 1;

[0051] A plurality of support rings 2 are arranged in the seedling box 1, and the support ring 2 is used to place the seedling cup 3, the seedling cup 3 is a filter screen structure, and the rotating ring 4 is rotatably arranged on the support ring 2, and a plurality of spray pipes 5 are fixedly connected to the rotating ring 4, and the spray end of the spray pipe 5 faces the axis direction of the support ring 2;

[0052] Three-way valve 6 is respectively communicated with cleaning water pipe 7, nutrient solution pipe 8 and communication pipe 9, and the communication pipe 9 is communicated with a plurality of spray pipes 5;

[0053] A driving mechanism is arranged on the seedling box 1, and is used to drive the plurality of rotating rings 4 to rotate.

[0054] When the nutrient solution needs to be replaced, the nutrient solution is discharged from the seedling box 1, then the cleaning water is communicated with the cleaning pipe 7, the cleaning water is pumped into the spray pipe 5, and the plurality of rotating rings 4 are driven to rotate by the driving mechanism, the plurality of spray pipes 5 on the rotating rings 4 are driven to rotate around the seedling cups 3, the seedling cups 3 are filter screen structures, and therefore the roots of the Codonopsis pilosula seedlings in the seedling cups 3 are cleaned by the cleaning water sprayed from the spray pipes 5, so that the Codonopsis pilosula seedlings are prevented from remaining more old nutrient solution on the roots, the phenomenon of root rot is reduced, and the survival rate of the Codonopsis pilosula seedlings is effectively improved; after the roots of the Codonopsis pilosula seedlings are cleaned, the nutrient solution is communicated with the nutrient solution pipe 8, the nutrient solution is pumped into the spray pipe 5, and the nutrient solution is sprayed into the seedling box 1 by the spray pipe 5, so that the roots of the Codonopsis pilosula seedlings are soaked in the nutrient solution for seedling culture.

[0055] In an embodiment of the present application, the driving mechanism comprises:

[0056] A plurality of worm gears 10 are fixedly connected to the plurality of rotating rings 4 one by one;

[0057] A rotating rod 11 is rotatably connected in the seedling box 1, a plurality of worm gears 12 are coaxially fixedly connected to the rotating rod 11, and the plurality of worm gears 12 correspond to and mesh with the plurality of worm gears 10 one by one;

[0058] A driving source is used to drive the rotating rod 11 to rotate.

[0059] The rotating rod 11 is driven to rotate, the plurality of worm gears 12 are driven to rotate by the rotating rod 11, the rotating rings 4 are driven to rotate by the worm gears 12 driving the worm gears 10, and the plurality of rotating rings 4 are synchronously rotated.

[0060] In an embodiment of the present application, the driving source comprises:

[0061] An electric sliding rail 13 is arranged on the seedling box 1, an electric sliding block 14 is slidably connected to the electric sliding rail 13, and a mounting plate 15 is fixedly connected to the electric sliding block 14;

[0062] A transmission rod 16 is rotatably connected in the seedling box 1, the transmission rod 16 is in transmission cooperation with the rotating rod 11 through a gear set, a spiral sliding groove 17 is formed in the transmission rod 16, a sliding sleeve 18 with a guide sliding block is slidably connected in the spiral sliding groove 17, and the sliding sleeve 18 is fixedly connected with the mounting plate 15.

[0063] In an embodiment of the present application, the gear set comprises:

[0064] A first straight gear 19 is fixedly connected with the rotating rod 11;

[0065] The second spur gear 20 is fixedly connected with the transmission rod 16, and the second spur gear 20 is engaged with the first spur gear 19.

[0066] The electric sliding block 14 is driven to slide by the electric sliding rail 13, the mounting plate 15 is synchronously slid, the sliding sleeve 18 is driven to slide by the mounting plate 15, the guiding sliding block on the sliding sleeve 18 is matched with the spiral sliding groove 17, the transmission rod 16 is rotated, the second spur gear 20 is engaged with the first spur gear 19, and the rotating rod 11 is rotated.

[0067] In an embodiment of the present application, the communication pipe 9 comprises a plurality of communication segments, a support ring 2 is fixedly connected between two adjacent communication segments, the two communication segments at both ends are fixedly connected with the seedling box 1, a communication cavity 21 is formed in the support ring 2 and is in communication with the communication segments, a plurality of communication openings 22 are formed in the rotating ring 4 and are in communication with the communication cavity 21, and the plurality of communication openings 22 are in communication with the plurality of spray pipes 5.

[0068] The plurality of support rings 2 are fixedly connected in the seedling box 1 through the plurality of communication segments, the plurality of communication segments are kept in a communication state through the communication cavity 21 arranged in the support ring 2, the plurality of communication cavities 21 are kept in a communication state, the cleaning water or the nutrient solution can enter the spray pipe 5 through the communication openings 22 communicated with the communication cavity 21, and the cleaning water or the nutrient solution is pumped out by cooperating with the external pump force.

[0069] In an embodiment of the present application, the support ring 2 is provided with a support sliding table 23 for supporting the rotating ring 4.

[0070] In an embodiment of the present application, a gap is formed between the bottom end of the seedling cup 3 and the inner bottom surface of the seedling box 1, a cylinder 24 is fixedly installed on the mounting plate 15, an extension spring rod 25 is fixedly connected to the output end of the cylinder 24, a scraper 26 is fixedly connected to the extension spring rod 25, and the scraper 26 is used for abutting against the inner bottom surface of the seedling box 1.

[0071] Since the nutrients in the nutrient solution will precipitate, in order to avoid that the attached nutrient solution with precipitated nutrients on the bottom surface of the seedling box 1 affects the quality of the new nutrient solution, the cylinder 24 drives the extension spring rod 25 to drive the scraper 26 to abut against the inner bottom surface of the seedling box 1, the scraper 26 is synchronously slid along the gap between the inner bottom surface of the seedling box 1 and the seedling cup 3 while the mounting plate 15 is slid, and the cleaning water sprayed into the seedling box 1 by the spray pipe 5 is used for cleaning, so that the old nutrients attached and remained in the seedling box 1 are avoided.

[0072] When the inner bottom surface of the seedling box 1 does not need to be cleaned, the cylinder 24 drives the scraper 26 to be lifted and separated from the nutrient solution in the seedling box 1.

[0073] In one embodiment of the present application, the slope 27 is arranged at both ends of the seedling box 1 along the sliding direction of the electric sliding block 14.

[0074] In one embodiment of the present application, the slope 27 is arranged at both ends of the seedling box 1 along the sliding direction of the electric sliding block 14.

[0075] In one embodiment of the present application, the slope 27 is arranged at both ends of the seedling box 1 along the sliding direction of the electric sliding block 14.

[0076] In one embodiment of the present application, the slope 27 is arranged at both ends of the seedling box 1 along the sliding direction of the electric sliding block 14.

[0077] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0078] The above-described embodiments are only descriptions of the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope of the present application as defined by the claims.

Claims

1. A nutrient solution delivery device for Codonopsis pilosula seedling cultivation, characterized in that: include: Seedling box (1); A plurality of support rings (2) are arranged in the seedling box (1); the support rings (2) are used to place seedling cups (3); the seedling cups (3) are filter structures; a rotating ring (4) is rotatably provided on the support ring (2); a plurality of nozzles (5) are fixedly connected to the rotating ring (4); and the spraying ends of the nozzles (5) are oriented toward the axial direction of the support ring (2); A three-way valve (6) is connected to a cleaning water pipe (7), a nutrient solution pipe (8) and a connecting pipe (9), respectively. The connecting pipe (9) is connected to the plurality of nozzles (5); A driving mechanism is provided on the seedling raising box (1), and the driving mechanism is used to drive the plurality of rotating rings (4) to rotate.

2. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 1, characterized in that, The driving mechanism comprises: A plurality of worm gears (10) are fixedly connected one by one to the plurality of rotating rings (4); A rotating rod (11) is rotatably connected in the seedling box (1), and a plurality of worms (12) are coaxially fixedly connected to the rotating rod (11), and the plurality of worms (12) correspond to and mesh with the plurality of worm wheels (10) in a one-to-one manner; A driving source is used to drive the rotating rod (11) to rotate.

3. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 2, characterized in that, The driving source includes: An electric slide rail (13) is provided on the seedling raising box (1), an electric slider (14) is slidably fitted on the electric slide rail (13), and a mounting plate (15) is fixedly connected to the electric slider (14); A transmission rod (16) is rotatably connected in the seedling box (1). The transmission rod (16) is transmission-matched with the rotating rod (11) through a gear set. A spiral chute (17) is provided on the transmission rod (16). A sliding sleeve (18) with a guide slider is slidably matched in the spiral chute (17). The sliding sleeve (18) is fixedly connected to the mounting plate (15).

4. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 3, characterized in that, The gear set includes: a first spur gear (19) fixedly connected to the rotating rod (11); A second spur gear (20) is fixedly connected to the transmission rod (16), and the second spur gear (20) is meshed with the first spur gear (19).

5. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 1, characterized in that: The connecting pipe (9) comprises a plurality of connecting segments, a supporting ring (2) is fixedly connected between two adjacent connecting segments, the two connecting segments at both ends are fixedly connected to the seedling box (1), a connecting cavity (21) is provided in the supporting ring (2), the connecting cavity (21) is connected to the connecting segments, a plurality of connecting ports (22) connected to the connecting cavity (21) are provided on the rotating ring (4), and the plurality of connecting ports (22) are connected to the plurality of nozzles (5).

6. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 1, characterized in that: The support ring (2) is provided with a support slide (23) for supporting the rotating ring (4).

7. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 3, characterized in that: There is a gap between the bottom end of the seedling cup (3) and the inner bottom surface of the seedling box (1); a cylinder (24) is fixedly mounted on the mounting plate (15); an output end of the cylinder (24) is fixedly connected to a telescopic spring rod (25); the telescopic spring rod (25) is fixedly connected to a scraper (26); and the scraper (26) is used to abut against the inner bottom surface of the seedling box (1).

8. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 3, characterized in that: The seedling raising box (1) is provided with slope surfaces (27) at both ends along the sliding direction of the electric slider (14).

9. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 8, characterized in that: A liquid discharge pipe (29) with an opening and closing valve (28) is provided on the slope surface (27).

10. A nutrient solution delivery device for growing Codonopsis pilosula seedlings according to claim 1, characterized in that: The bottom surface of the seedling raising box (1) is provided with a plurality of supporting legs (30).

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