Seedling raising hole tray
By introducing water guide plates and water-retaining blocks into the seedling trays, the problem of excessive water loss was solved, ensuring the substrate remained moist and improving the uniformity of seedling growth and the success rate of transplanting.
Patent Information
- Application Number
- CN202521392362.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-19
- Estimated Expiration
- 2035-07-03
AI Technical Summary
The existing seedling trays lose moisture too quickly, resulting in uneven distribution of substrate moisture and affecting seedling growth.
Design a seedling tray comprising a planting tray, planting cups, a water guide plate, and a water-retaining block. Through the combined structure of water inlet holes, water-retaining chambers, seepage holes, and the water guide plate, control the loss and distribution of water and keep the substrate moist.
It achieves uniform substrate moisture, prevents root rot, and improves seedling growth uniformity and transplant success rate.
Smart Images
Figure CN224250383U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural cultivation technology, specifically relating to a seedling tray. Background Technology
[0002] Seedling trays are porous containers commonly used in agricultural seedling cultivation. They are mainly used for mass cultivation of seedlings, helping seeds germinate in independently separated spaces, facilitating management and transplanting. Seedling trays are usually made of plastic or biodegradable materials, and are flat trays containing multiple independent small holes or grooves. By using seedling trays, seedling quality can be improved, the transplanting process can be simplified, and thus planting efficiency and seedling survival rate can be significantly improved. Dry seedling raising refers to a seedling raising method in which the soil is kept moist but not waterlogged during the seedling raising process. This is beneficial for root development and improving seedling resistance. Therefore, when using seedling trays, targeted water control is required for dry seedling raising.
[0003] However, in existing seedling trays, in order to prevent water accumulation at the bottom of the tray and root rot, one or more vertical drainage holes are usually set at the bottom of the tray for drainage. Water can be quickly lost through the vertical drainage holes, but this can easily lead to excessive water loss and the substrate becoming too dry. In addition, since each groove in the existing seedling tray is an independent structure, it may lead to uneven distribution of substrate moisture in different grooves in the same seedling tray, which affects the growth of seedlings. Utility Model Content
[0004] In view of this, the present invention provides a seedling tray, which aims to solve the technical problem that existing devices easily lead to excessive water loss, affecting the growth of seedlings.
[0005] To solve the aforementioned technical problems, the present invention adopts the following technical solution:
[0006] A seedling tray includes a planting tray, planting cups, a water guide plate, and a water-retaining block.
[0007] The planting tray has multiple placement holes, and each placement hole contains a planting cup. The lower end of the planting cup is equipped with a water guide plate, and the inner wall of the planting cup is provided with at least one water-retaining block.
[0008] The water-retaining block has a water-retaining cavity inside, and multiple water inlet holes are opened on the water-retaining block. The water inlet holes are connected to the water-retaining cavity, and the inner wall of the water-retaining cavity has seepage holes that are connected to the outside.
[0009] In this invention, the planting tray, planting cup, and water-retaining block are made of materials such as polystyrene, polypropylene, and polyvinyl chloride. The planting cup is a single, independent structure. During use, the planting cup is inserted into the placement hole on the planting tray, and the prepared substrate, such as straw substrate, is filled into the planting cup. The treated seeds are then buried in the substrate, followed by water management. During watering, a small portion of the water enters the water-retaining chamber through the inlet hole, while most of the water moistens the substrate. Excess water is quickly drained through the water guide plate to prevent water accumulation and root rot. As the water accumulation in the water-retaining chamber increases, the water slowly seeps out through the seepage holes under water pressure, maintaining substrate moisture. Therefore, in this invention, the vertical water guide plate quickly drains excess water, while the water-retaining block keeps the substrate moist, thus ensuring seedling growth.
[0010] Furthermore, in this invention, since the planting cup is set separately, the seedlings are transplanted separately, making it convenient to select and use according to the actual situation.
[0011] Preferably, the water-retaining block has a guide tip at its upper end, and the guide tip has water inlet holes on both sides.
[0012] After adopting this technical solution, it should be noted that the guide tip has three functions: first, it guides water to flow along the inclined surface of the guide tip and enter the water inlet hole, thereby improving the collection efficiency; second, the upper end of the guide tip is pointed, which can effectively prevent the roots from being obstructed when they grow to the guide tip and thus prevent root entanglement; and third, it can guide the growth direction of the roots to a certain extent, so that the roots grow towards both sides of the guide tip, which is conducive to the dispersion of the roots and reduces the damage to the roots during subsequent transplanting.
[0013] Preferably, the water-retaining cavity is provided with a guide slope, and the seepage hole corresponds to the bottom end of the guide slope.
[0014] After adopting this technical solution, it should be noted that the guide slope is triangular and its tip is pointing upward. The function of the guide slope is to guide the water flowing into the water retention cavity to the lower end of the guide slope. The seepage hole is located at the lower end of the water retention cavity corresponding to the lower end of the guide slope. The purpose is that as the water volume in the water retention cavity gradually increases, the water can be slowly discharged along the seepage hole under the action of water pressure.
[0015] In addition, it should be noted that the diameter of the seepage hole is small and the volume of the water retention cavity is small. The water pressure inside the water retention cavity can only slowly force water out of the seepage hole to achieve the purpose of moisturizing.
[0016] Preferably, the water guide plate is wavy and has at least one drain hole.
[0017] After adopting this technical solution, it should be noted that the corrugated water guide plate can increase the contact area between the water guide plate and the substrate, so that the accumulated water at the bottom of the substrate can be drained quickly; in addition, the corrugated water guide plate also increases the contact area between the substrate and the outside air, which is beneficial to seedling growth.
[0018] Preferably, the water guide plate is provided with drainage holes at both the crests and troughs of the wave.
[0019] After adopting this technical solution, it should be noted that drainage holes are set at both the crests and troughs of the corrugated water guide plate, which can realize three-dimensional drainage under the substrate. The drainage holes on the crests can drain water close to the interior of the substrate, and the drainage holes on the troughs can drain water from the bottom of the substrate, thus achieving rapid drainage.
[0020] Preferably, a conduit is provided between the lower ends of two adjacent placement holes, and the conduit connects the two adjacent placement holes.
[0021] After adopting this technical solution, it should be noted that the side of the planting cup has a through hole for the guide tube to pass through. The purpose of the guide tube is to maintain the balance of moisture and nutrients in the internal substrate of multiple planting cups in the same planting tray as much as possible, so that the seedlings in the same planting tray grow uniformly and improve the quality of the seedlings.
[0022] Preferably, the planting cup has a square cross-section, and each side wall of the planting cup is provided with a water-retaining block with the guide tip facing upward. Space is left between the two sides of the water-retaining block and the side walls of two adjacent planting cups for root growth.
[0023] After adopting this technical solution, it should be noted that more substrate can be placed in the square planting cup, which has more space and is more convenient. During the root growth process, under the action of the water-retaining blocks and guide tips on the four inner walls of the planting cup, the roots grow towards the guide tips and water-retaining blocks on both sides, thereby making the root growth more dispersed and facilitating subsequent transplanting.
[0024] Preferably, the outer surface of the implantation cup has a first inclined portion at its center, and a second inclined portion at its lower end. The inclination angle of the first inclined portion is smaller than that of the second inclined portion. The inner wall of the implantation cup and the inner wall of the through hole are inclined at the locations corresponding to the first and second inclined portions.
[0025] The water-retaining block is located on the inner wall of the planting cup at a position corresponding to the first inclined portion.
[0026] After adopting this technical solution, it should be noted that the corresponding arrangement of the first inclined part, the second inclined part, and the inner wall of the planting cup is all for the purpose of guiding root growth. The part inside the planting cup corresponding to the first inclined part, together with the guide tip and the water-retaining block, can better guide root growth, and the inclined setting is conducive to guiding water to flow downward and then draining. The part inside the planting cup corresponding to the second inclined part is mainly intended to guide the roots to grow towards the center of the planting cup, which is convenient for subsequent planting, and it also plays a certain role in water conduction.
[0027] Furthermore, it should be noted that the purpose is to place the inclined part inside the hole into contact with the first and second inclined parts, achieving fixation through friction, so that the planting cup can be simply pulled out when needed.
[0028] Preferably, the lower end of the planting tray is detachably equipped with a water storage tray.
[0029] The planting tray has a first limiting groove at its lower end and a second limiting groove on its side wall. The water storage tray has a guide strip at its upper end and a limiting block on its side wall. The guide strip can slide with the first limiting groove and the limiting block can cooperate with the second limiting groove.
[0030] After adopting this technical solution, it should be noted that the water storage tray is used to store the water discharged from the planting cup. During installation, simply align the guide strip with the first limiting groove and insert the limiting block into the second limiting groove, then push the water storage tray inward to complete the installation. Pull it outward to remove the water storage tray. The sliding fit between the limiting block and the second limiting groove can prevent the water storage tray from falling off.
[0031] Preferably, the water storage pan has ventilation holes on its side wall, which facilitates air circulation and is beneficial to seedling growth.
[0032] Preferably, the surfaces of the water inlet and the seepage holes are covered with a screen.
[0033] The purpose of adopting this technical solution is to ensure that the size of the screen prevents the substrate and roots from entering the water inlet. The screen can be made of metal mesh, cloth, or other materials.
[0034] The steps for using this utility model are as follows:
[0035] Insert the planting cup into the placement hole on the planting tray, fill the prepared substrate, such as straw substrate, into the planting cup, bury the treated seeds in the substrate, and then manage watering. During watering, a small portion of the water will be guided into the inlet hole through the guide tip, and then into the water retention chamber. The water in the water retention chamber flows to the bottom of the water retention chamber under the guidance of the guide slope, while the remaining water moistens the substrate. Excess water will be drained quickly and three-dimensionally through the corrugated water guide plate to prevent water accumulation and root rot. As the water accumulation in the water retention chamber increases, the water in the water retention chamber will slowly seep out through the seepage hole under the water pressure, achieving the effect of keeping the substrate moist. During the subsequent seedling growth process, the guide tip and water retention block also play a role in dispersing the root system, which is beneficial for subsequent transplanting.
[0036] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0037] 1. The present invention provides a seedling tray in which a water-retaining block is grown. During the watering process, a small amount of water will enter the water-retaining cavity through the water inlet hole. As the water accumulation in the water-retaining cavity increases, the water in the water-retaining cavity will slowly seep out through the seepage hole under the action of water pressure, thereby achieving the effect of keeping the substrate moist.
[0038] 2. The seedling tray provided by this utility model can increase the contact area between the water guide plate and the substrate by setting a wavy water guide plate, so that the accumulated water at the bottom of the substrate can be drained quickly. The wavy water guide plate also increases the contact area between the substrate and the outside air, which is beneficial to the growth of seedlings.
[0039] 3. The seedling tray provided by this utility model has drainage holes at the crests and troughs of the water guide plate, which can realize three-dimensional drainage of the substrate. The drainage holes on the crests can drain water close to the interior of the substrate, and the drainage holes on the troughs can drain water from the substrate, thus achieving rapid drainage.
[0040] 4. The seedling tray provided by this utility model has the following advantages: First, it guides water to flow along the inclined surface of the guide tip and enter the water inlet hole, thereby improving the collection efficiency; second, the upper end of the guide tip is pointed, which can effectively prevent the roots from being obstructed when they grow to the guide tip and thus prevent root entanglement; third, it can guide the growth direction of the roots to grow to both sides of the guide tip, which is conducive to the dispersion of the roots and reduces the damage to the roots during subsequent transplanting.
[0041] 5. The seedling tray provided by this utility model, by setting a guide tube between the lower ends of two adjacent placement holes, maintains as much balance as possible in the moisture and nutrients of the internal substrate of multiple planting cups in the same planting tray, so that the seedlings in the same planting tray grow uniformly and improve the quality of seedlings.
[0042] 6. The seedling tray provided by this utility model can guide root growth by setting a first inclined part and a second inclined part, and the inner wall of the planting cup is set with the first inclined part and the second inclined part respectively, which facilitates subsequent planting and plays a role in water conduction. Attached Figure Description
[0043] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:
[0044] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0045] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0046] Figure 3 This is a schematic diagram of the planting cup structure of this utility model;
[0047] Figure 4 This is a cross-sectional view of the guide tip and water-retaining block of this utility model;
[0048] Figure 5 This is a schematic diagram of the internal structure of the planting cup of this utility model;
[0049] Figure 6 This is a schematic diagram of one embodiment of the present utility model;
[0050] Figure 7 This is a schematic diagram of the planting tray structure of this utility model.
[0051] Figure label:
[0052] 1-Planting tray, 2-Water storage tray, 201-Ventilation hole, 3-Placement hole, 4-Planting cup, 5-Water retention block, 501-Water inlet hole, 6-Guide tube, 7-Limiting block, 8-Water retention cavity, 9-Guide slope, 10-Drainage hole, 11-First inclined part, 12-Second inclined part, 13-Water guide plate, 1301-Drainage hole, 14-Guide tip, 15-First limiting groove, 16-Second limiting groove, 17-Guide strip. Detailed Implementation
[0053] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0054] In the description of the embodiments of this application, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility product is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0055] The following is combined Figures 1-7 This utility model will be described in detail.
[0056] Example 1
[0057] A type of seedling tray, such as Figures 1-5 As shown, it includes a planting tray 1, planting cups 4, a water guide plate 13, and a water-retaining block 5.
[0058] The planting tray 1 has multiple placement holes 3, and each placement hole 3 contains a planting cup 4. The lower end of the planting cup 4 is provided with a water guide plate 13, and the inner wall of the planting cup 4 is provided with at least one water-retaining block 5.
[0059] The water-retaining block 5 has a water-retaining cavity 8 inside, and multiple water inlet holes 501 are opened on the water-retaining block 5. The water inlet holes 501 are connected to the water-retaining cavity 8. The inner wall of the water-retaining cavity 8 is provided with seepage holes 10, which are connected to the outside.
[0060] The planting cup 4 has a square cross-section. Each side wall of the planting cup 4 is provided with a water-retaining block 5, and the guide tip 14 faces upward. Space is left between the two sides of the water-retaining block 5 and the side walls of the two adjacent planting cups 4 for root growth.
[0061] The surfaces of the water inlet hole 501 and the seepage hole 10 are covered with a screen. The size of the screen is required to prevent the substrate from entering the water inlet hole 501 and the roots from entering the water inlet hole 501. The screen can be made of metal mesh, cloth material, etc.
[0062] In this embodiment, the vertical water guide plate 13 quickly drains excess water, while the water-retaining block 5 keeps the substrate moist, thus ensuring the growth of seedlings. The square planting cup 4 can hold more substrate, providing more space and making it more convenient. During the root growth process, under the action of the water-retaining block 5 and the guide tip 14 on the four inner walls of the planting cup 4, the roots grow towards the guide tip 14 and the water-retaining block 5, thus making the root growth more dispersed and facilitating subsequent transplanting.
[0063] Example 2
[0064] The difference between this embodiment and Embodiment 1 is that, as Figure 4 As shown, the water-retaining block 5 has a guide tip 14 at its upper end, and the guide tip 14 has water inlet holes 501 on both sides.
[0065] The water-retaining cavity 8 is provided with a guide slope 9, and the seepage hole 10 corresponds to the bottom end of the guide slope 9.
[0066] In this embodiment, the guide tip 14 has three functions: first, it guides water to flow along the inclined surface of the guide tip 14 and enter the water inlet 501, thereby improving the collection efficiency; second, the upper end of the guide tip 14 is pointed, which can effectively prevent the roots from being obstructed when they grow to the guide tip 14 and thus prevent root entanglement; and third, it can guide the growth direction of the roots to a certain extent, so that the roots grow to both sides of the guide tip 14, which is conducive to the dispersion of the roots and reduces the damage to the roots during subsequent transplanting.
[0067] The guide slope 9 is triangular in shape with its apex pointing upwards. The function of the guide slope 9 is to guide the water flowing into the water-retaining cavity 8 to the lower end of the guide slope 9. The seepage hole 10 is located at the lower end of the water-retaining cavity 8 corresponding to the lower end of the guide slope 9. Its purpose is that as the water volume in the water-retaining cavity 8 gradually increases, the water can be slowly discharged along the seepage hole 10 under the action of water pressure. In addition, the diameter of the seepage hole 10 is small and the volume of the water-retaining cavity 8 is small. The water pressure inside the water-retaining cavity 8 can only slowly push the water out of the seepage hole 10 to achieve the purpose of moisturizing.
[0068] Example 3
[0069] The difference between this embodiment and Embodiment 2 is that, as Figure 2 , Figure 5 , Figure 6 As shown, the water guide plate 13 is wavy, and the water guide plate 13 is provided with at least one drain hole 1301.
[0070] In this embodiment, the corrugated water guide plate 13 can increase the contact area between the water guide plate 13 and the substrate, so that the accumulated water at the bottom of the substrate can be drained quickly; in addition, the corrugated water guide plate 13 also increases the contact area between the substrate and the outside air, which is beneficial to seedling growth.
[0071] Example 4
[0072] The difference between this embodiment and embodiment 3 is that, as Figure 5 As shown, the water guide plate 13 is provided with drainage holes 1301 at both the crest and trough of the wave.
[0073] In this embodiment, drainage holes 1301 are provided at both the crests and troughs of the corrugated water guide plate 13, which can realize three-dimensional drainage of the substrate. The drainage holes 1301 on the crests can drain water close to the interior of the substrate, and the drainage holes 1301 on the troughs can drain water from the substrate, thus achieving rapid drainage.
[0074] Example 5
[0075] The difference between this embodiment and embodiment 4 is that, as Figure 2 As shown, a conduit 6 is provided between the lower ends of two adjacent placement holes 3, and the conduit 6 connects the two adjacent placement holes 3.
[0076] In this embodiment, the planting cup 4 has a through hole on its side for the guide tube 6 to pass through. The function of the guide tube 6 is to maintain the balance of moisture and nutrients in the internal substrate of multiple planting cups 4 in the same planting tray 1 as much as possible, so that the seedlings in the same planting tray 1 grow in a uniform manner and improve the quality of the seedlings.
[0077] Example 6
[0078] The difference between this embodiment and Embodiment 1 is that, as Figure 6 As shown, the planting cup 4 has a first inclined portion 11 in the middle of its outer surface, and a second inclined portion 12 at the lower end of the first inclined portion 11. The inclination angle of the first inclined portion 11 is smaller than the inclination angle of the second inclined portion 12. The inner wall of the planting cup 4 and the inner wall of the through hole are inclined at the locations corresponding to the first inclined portion 11 and the second inclined portion 12.
[0079] The water-retaining block 5 is located on the inner wall of the planting cup 4 at a position corresponding to the first inclined part 11.
[0080] In this embodiment, the corresponding arrangement of the first inclined part 11, the second inclined part 12, and the inner wall of the planting cup 4 is all for the purpose of guiding root growth. The part of the planting cup 4 corresponding to the first inclined part 11, together with the guide tip 14 and the water-retaining block 5, can better guide root growth, and the inclined arrangement is conducive to guiding water to flow downward and then draining. The part of the planting cup 4 corresponding to the second inclined part 12 is mainly intended to guide the roots to grow towards the center of the planting cup 4, which is convenient for subsequent planting, and it also plays a certain role in water conduction.
[0081] Furthermore, the inclined portion inside the placement hole 3 is in surface contact with the first inclined portion 11 and the second inclined portion 12, and is fixed by friction. When the planting cup 4 needs to be removed, it can simply be pulled outwards.
[0082] Example 7
[0083] The difference between this embodiment and embodiment 6 is that, as Figure 1 , Figure 2 , Figure 7 As shown, a water storage tray 2 is detachably provided at the lower end of the planting tray 1.
[0084] The planting tray 1 has a first limiting groove 15 at its lower end, and a second limiting groove 16 on the side wall of the first limiting groove 15. The water storage tray 2 has a guide strip 17 at its upper end, and a limiting block 7 on the side wall of the guide strip 17. The guide strip 17 can slide with the first limiting groove 15, and the limiting block 7 can cooperate with the second limiting groove 16.
[0085] The water storage pan 2 has ventilation holes 201 on its side wall, which facilitates air circulation and is beneficial to seedling growth.
[0086] In this embodiment, the water storage tray 2 is used to store the water discharged from the planting cup 4. During installation, simply align the guide strip 17 with the first limiting groove 15 and insert the limiting block 7 into the second limiting groove 16, then push the water storage tray 2 inward to complete the installation. Pull it outward to remove the water storage tray 2. The sliding cooperation between the limiting block 7 and the second limiting groove 16 can prevent the water storage tray 2 from falling off.
[0087] The steps for using this utility model are as follows:
[0088] Insert the planting cup 4 into the placement hole 3 on the planting tray 1, fill the prepared substrate, such as straw substrate, into the planting cup 4, bury the treated seeds in the substrate, and then manage watering. During watering, a small portion of the water will be guided into the water inlet hole 501 through the guide tip 14, and then into the water retention chamber 8. The water in the water retention chamber 8 flows to the bottom of the water retention chamber 8 under the guidance of the guide slope 9. The remaining water moistens the substrate, while excess water will be discharged three-dimensionally and quickly through the corrugated water guide plate 13 to prevent water accumulation and root rot. As the water accumulation in the water retention chamber 8 increases, the water in the water retention chamber 8 will slowly seep out through the seepage hole 10 under the action of water pressure, achieving the effect of keeping the substrate moist. In the subsequent seedling growth process, the guide tip 14 and the water retention block 5 also play a role in dispersing the root system, which is beneficial for subsequent transplanting.
[0089] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A seedling raising plug, characterized by, Includes planting tray (1), planting cup (4), water guide plate (13), and water-retaining block (5). The planting tray (1) has multiple placement holes (3), and each placement hole (3) contains a planting cup (4). The lower end of the planting cup (4) is provided with a water guide plate (13), and the inner wall of the planting cup (4) is provided with at least one water-retaining block (5). The water-retaining block (5) is provided with a water-retaining cavity (8), and the water-retaining block (5) has multiple water inlet holes (501) which are connected to the water-retaining cavity (8). The inner wall of the water-retaining cavity (8) is provided with a seepage hole (10) which is connected to the outside.
2. The plug tray according to claim 1, wherein: The water-retaining block (5) is provided with a guide tip (14) at its upper end, and the water inlet holes (501) are provided on both sides of the guide tip (14).
3. The plug tray according to claim 1 or 2, wherein The water-retaining cavity (8) is provided with a guide slope (9), and the seepage hole (10) corresponds to the bottom end of the guide slope (9).
4. The plug tray according to claim 1 or 2, wherein: The water guide plate (13) is wavy and has at least one drain hole (1301).
5. A plug tray according to claim 4, wherein: The water guide plate (13) is provided with drainage holes (1301) at both the crest and trough of the wave.
6. The plug tray according to claim 1 or 2, wherein: A conduit (6) is provided between the lower ends of two adjacent placement holes (3), and the conduit (6) connects the two adjacent placement holes (3).
7. The plug tray according to claim 2, wherein: The planting cup (4) has a square cross-section. Each side wall of the planting cup (4) is provided with a water-retaining block (5), and the guide tip (14) faces upward. Space is left between the two sides of the water-retaining block (5) and the side walls of the two adjacent planting cups (4) for root growth.
8. The plug tray according to claim 1 or 2, wherein: The planting cup (4) has a first inclined portion (11) in the middle of its outer surface, and a second inclined portion (12) at the lower end of the first inclined portion (11). The inclination angle of the first inclined portion (11) is smaller than that of the second inclined portion (12). The inner wall of the planting cup (4) and the inner wall of the placement hole (3) are inclined at the locations corresponding to the first inclined portion (11) and the second inclined portion (12). The water-retaining block (5) is located on the inner wall of the planting cup (4) at the position corresponding to the first inclined part (11).
9. The plug tray according to claim 1 or 2, wherein: The planting tray (1) is detachably equipped with a water storage tray (2) at its lower end. The planting tray (1) has a first limiting groove (15) at its lower end and a second limiting groove (16) on its side wall. The water storage tray (2) has a guide strip (17) at its upper end and a limiting block (7) on its side wall. The guide strip (17) can slide with the first limiting groove (15) and the limiting block (7) can cooperate with the second limiting groove (16).
10. The plug tray according to claim 1 or 2, wherein: The surfaces of the water inlet (501) and the water seepage hole (10) are covered with a screen.