Plant cultivation device

Abstract

To reduce the operating cost of a device by increasing the efficiency of liquid fertilizer supply to plants.SOLUTION: A plant cultivation device is configured so that a liquid fertilizer can flow down the inner side wall and has a plurality of pipe-shaped trunk sections that can be fitted together vertically, and is equipped with a plurality of planting holes that are arranged horizontally on the outer circumferential surface of the trunk sections and are arranged so that they are staggered when the trunk sections are fitted together and viewed vertically, a first flow suppression section with semicylindrical shape that is arranged on the trunk sections and prevents the liquid fertilizer from flowing down to places other than the planting holes, and a first flow guide section that is arranged adjacent to the first flow suppression section and concentrates the liquid fertilizer and causes it to flow down to the planting holes.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a plant cultivation device. [Background technology]

[0002] Hydroponic cultivation is known as a method for cultivating plants. Hydroponic cultivation is a cultivation method in which plants are not planted in soil, but are cultivated by supplying liquid fertilizer, which is a nutrient solution containing nutrients, to the roots of the plants, and can increase the growth rate compared to soil cultivation, in which the plants are planted in soil. In addition, hydroponic cultivation does not cause continuous crop problems like soil cultivation.

[0003] A plant cultivation device is known that has a vertical cylindrical cultivation container, places plants on the outer periphery of the cylindrical cultivation container, and uses a pump to raise liquid fertilizer, dispersing it inside the container and supplying it to the plants (Patent Document 1). This type of plant cultivation device can effectively cultivate plants in a small space compared to soil cultivation. The plant cultivation device described in Patent Document 1 is also transportable. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Special Publication No. 2018-531028 Summary of the Invention [Problem to be solved by the invention]

[0005] A vertical plant cultivation device as described in Patent Document 1 requires energy to pump liquid fertilizer. If it is possible to supply a sufficient amount of liquid fertilizer to plants while minimizing the energy required for pumping water while taking advantage of the advantages of a vertical cultivation container, the operating costs of the device can be reduced, which is advantageous.

[0006] An object of the present invention is to improve the efficiency of supplying liquid fertilizer to plants and reduce the operating costs of the device. [Means for solving the problem]

[0007] The plant cultivation device of the present invention is configured to allow liquid fertilizer to flow down the inner side wall, has a plurality of pipe-shaped body sections that can be fitted together vertically, and is equipped with a plurality of planting holes, one or more of which are arranged horizontally on the outer peripheral surface of the body sections and are arranged so that they are staggered when the body sections are fitted together and viewed vertically, a first kamaboko-shaped flow suppression section that is arranged on the body sections and prevents the liquid fertilizer from flowing down to places other than the planting holes, and a first flow guide section that is arranged adjacent to the first flow suppression section and concentrates the liquid fertilizer and directs it down to the planting holes.

[0008] With this configuration, it is possible to provide a plant cultivation device whose height can be freely changed by stacking the trunks. Also, by providing a first flow guide section and a first flow suppression section on the inside of the trunk corresponding to the plant placement section, the movement of liquid fertilizer flowing down the inner side wall can be restricted, allowing for very efficient distribution to the plants being cultivated.

[0009] The planting holes may be arranged vertically above the body, and the first flow suppression part may be arranged vertically below the body and vertically below the planting holes. With this configuration, liquid fertilizer supplied to the planting hole above can be rectified and then supplied to another planting hole. Also, the planting holes can be arranged alternately in the vertical direction, so a large space can be provided for plant growth.

[0010] The center of the body has a through hole through which a transfusion pipe that transports the liquid fertilizer stored in the lower part vertically upward by power can pass, and a cone-shaped second flow suppression part that inhibits the inflow of the liquid fertilizer flowing downward is arranged around the through hole, and the first flow suppression part and the second flow suppression part may be connected. With this configuration, the liquid fertilizer can be transported vertically upward through the transfusion pipe in the center of the body. Also, the liquid fertilizer can be prevented from flowing downward around the transfusion pipe without touching the plant body.

[0011] Also, the outer wall of the body portion corresponding to the first flow suppression portion may have a claw portion that can engage with another body portion, and the fitting may be realized by engaging the claw portion with the other body portion. By engaging with the claw portion, the stacked body portion and planting portion will not come off unless it is intended to be removed. This makes the plant cultivation device stable. Also, a user of the plant cultivation device can move the plant cultivation device to any location. Also, a first flow suppression portion is provided at the engagement portion, so that liquid fertilizer does not flow down. Therefore, it is possible to engage the body portions with each other without providing a separate seal portion.

[0012] Moreover, a straightening plate parallel to the horizontal direction may be arranged on the top of the body part that is arranged at the vertical upper end, and a groove-shaped second flow guide section that guides the liquid fertilizer to the planting hole in the body part may be arranged on the straightening plate. By arranging the straightening plate at the vertical upper end, it is possible to prevent light from entering the inside of the device and causing the proliferation of algae. Furthermore, by providing the straightening plate with a second flow guide section, it is possible to prevent the liquid fertilizer transported to the straightening plate from flowing down from an unintended location.

[0013] A third flow suppressing section may be disposed below the straightening plate in the vertical direction to suppress the liquid fertilizer flowing down from the second flow guiding section from flowing down to places other than the planting hole. By providing the flow suppressing section not only on the body but also on the straightening plate, the liquid fertilizer can be more efficiently guided to the planting hole. Effect of the Invention

[0014] According to the present invention, the supply of liquid fertilizer to plants can be made more efficient, and the operating costs of the device can be reduced. [Brief description of the drawings]

[0015] [Figure 1] FIG. 1 is a diagram showing the external appearance of the plant cultivation device. [Diagram 2] FIG. 2 is a diagram showing the torso portion. [Diagram 3] FIG. 3 is a diagram showing a state in which a planting cup is attached to the body portion. [Figure 4]FIG. 4 is a diagram showing a state in which the lid is attached to the body. [Diagram 5] FIG. 5 is a cross-sectional view of the plant cultivation device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described. The embodiment described below is one aspect of the present invention, and is not intended to limit the technical scope of the present invention.

[0017] <Embodiment> FIG. 1 is a diagram showing the external appearance of the plant cultivation device. The plant cultivation device 1 has a stack structure in which a number of body parts 2 are stacked vertically. The plant cultivation device 1 is self-supporting when no external force is applied. In addition, the self-supporting state is made more stable by storing liquid fertilizer, which is an aqueous solution containing fertilizer components, inside the plant cultivation device 1. The body parts 2 are pipe-shaped structures that form the body of the plant cultivation device 1, and liquid fertilizer can be made to flow down the inner side walls. In other words, liquid fertilizer can flow down the inner side walls. The body parts 2 can be fitted together by engaging with other body parts 2. A plurality of claws 3 are arranged so that they can be moved.

[0018] One or more planting holes 4 are arranged in parallel on the outer peripheral surface on the vertical upper side of the body 2. A planting cup 5 having a basket-like structure can be fitted into the planting hole 4, and a plant can be placed in the planting cup 5.

[0019] The lowest one of the trunk sections 2 is the trunk section 2B having a flat bottom, and functions as a reservoir for storing liquid fertilizer. The trunk sections 2 can be fitted together in any number of stages in the vertical direction, so that a plant cultivation device of any height can be realized.

[0020] The body parts 2 that are fitted together have planting holes 4 arranged in each of them. A claw part 3 is provided vertically below each planting hole 4, and the planting holes 4 of another body part 2 are arranged adjacent to the engagement positions of the claw parts 3. Therefore, the planting holes 4 arranged in the fitted body parts 2 are arranged with a horizontal shift when viewed vertically. In this figure, the planting holes 4 are arranged alternately when viewed vertically.

[0021] A lid 6 is disposed vertically above the one of the body parts 2 that is disposed vertically at the top. A straightening plate 7 is disposed on the lid 6. The straightening plate 7 has a function of dispersing the liquid fertilizer supplied from the body part 2B by the power of a pump or the like, and reaching the vicinity of the side inner wall of the body part 2, facilitating the supply of the liquid fertilizer to the planting hole 4. The liquid fertilizer supplied vertically upward from the body part 2B of the plant cultivation device 1 is dispersed through the straightening plate 7, and while being supplied to the planting hole 4, it flows down along the side inner wall of the body part 2 of the plant cultivation device 1 and returns to the body part 2B. The lid 6 is also provided with a claw part 3A similar to the claw part 3, which can be engaged with the body part 2.

[0022] FIG. 2 is a diagram showing the body. A plurality of planting holes 4 are arranged in the vertical upper part of the body 2. A flow suppressing part 8 having a convex shape toward the vertical upper side is arranged on the vertical lower side of the planting holes 4. The number of planting holes 4 and the number of flow suppressing parts 8 may be the same. For example, in the embodiment shown in FIG. 2, four planting holes 4 are arranged in the body 2, and four flow suppressing parts 8 are also arranged directly below each planting hole 4 in the vertical direction. The liquid fertilizer that flows down the planting hole 4 and reaches the flow suppressing part 8 flows down so as to avoid the flow suppressing part 8. Since the flow suppressing part 8 is a kamaboko shape, the liquid fertilizer can be guided to an appropriate flow path without being retained. The flow suppressing part 8 is an example of a first flow suppressing part in the present disclosure.

[0023] In addition, a cone-shaped flow suppressing part 9 is arranged in the center of the body 2. The top of the flow suppressing part 9 is a notch, and an infusion pipe (not shown) for transporting liquid fertilizer from the body 2B vertically upward can be passed through the inside of the notch. In other words, the flow suppressing part 9 is arranged around the notch hole 11, which is a through hole through which the infusion pipe can pass. The flow suppressing part 9 has a function of suppressing the flow of liquid fertilizer to the center and allowing it to flow toward the periphery due to its cone shape. The flow suppressing part 8 and the flow suppressing part 9 are connected to each other in the vertical lower part of the body 2. The flow suppressing part 9 is an example of a second flow suppressing part in the present disclosure. Note that the flow suppressing part 9 is not essential, and for example, a configuration may be used in which the kamaboko-shaped flow suppressing parts 8 are formed by crossing each other at the center, and the notch hole 11 is opened in the center. Liquid fertilizer flowing down the body 2 basically flows down the inner side wall of the body 2, and therefore it is difficult for it to reach the cutout hole 11. However, since it cannot be completely denied that liquid fertilizer whose flow is suppressed by the flow suppressing part 8 may enter the cutout hole 11, it is more preferable to provide and combine the flow suppressing part 9 to suppress this.

[0024] In the vertical lower portion of the body 2, in a portion where there is no flow suppressing portion 8 adjacent to the flow suppressing portion 8, a hole 10 serving as a flow guide portion is formed. The hole 10 guides the liquid fertilizer, the flow of which is restricted by the flow suppressing portions 8, 9, toward another body 2 fitted vertically below the body 2. The position of the hole 10 corresponds to the planting hole 4 arranged in another trunk part 2. Therefore, the liquid fertilizer passing through the hole 10 is supplied to the plant body arranged in the corresponding planting hole 4. By combining the flow suppressing part 8 and the flow suppressing part 9, the path along which the liquid fertilizer flowing down the inner wall of the side of the trunk part 2 moves to the next trunk part 2 fitted in the lower part in the vertical direction is limited to the hole 10. In other words, the flow suppressing part 8 and the flow suppressing part 9 have the function of preventing the liquid fertilizer from flowing down to places other than the planting hole 4. In addition, the hole 10 is arranged adjacent to the flow suppressing part 8 and has the function of concentrating the liquid fertilizer and flowing it down to the planting hole 4. The hole 10 is an example of a first flow guide part in the present disclosure.

[0025] A claw portion 3 that can engage with another body portion 2 or body portion 2B is disposed at the lower portion in the vertical direction of the body portion 2. More specifically, the claw portion 3 is disposed at a position on the outer wall of the body portion 2 that corresponds to the flow suppressing portion 8. A protrusion that corresponds to the flow suppressing portion 8 of the other body portion 2 is disposed on the body portion 2 or body portion 2B, and the protrusion and the claw portion 3 are engaged with each other, thereby making it possible to fit the body portions 2 together. The flow suppressing portion 8 is disposed inside the position where the claw portion 3 is disposed. The liquid fertilizer is suppressed in flow by the flow suppressing portion 8 and flows toward the hole 10. In addition, since the flow suppressing portion 8 does not have a hole through which the liquid fertilizer inside can exit to the outside, the liquid fertilizer does not flow into the fitting portion. Therefore, the plant cultivation device 1 does not require a sealing material such as a packing at the fitting portion, even though it is an assembly type.

[0026] FIG. 3 is a diagram showing a state in which a planting cup is attached to the body. A planting cup 5 can be placed in the planting hole 4 of the body 2. The planting cup 5 has a basket-like structure in which a plant can be grown, and can be placed in and removed from the planting hole 4 of the body 2. A sponge-like plant medium 13 in which a plant is placed can also be placed in the planting cup 5. The plant medium 13 can hold a portion of the liquid fertilizer supplied from the hole 10 of the body 2 arranged vertically upward due to its sponge-like structure. The liquid fertilizer absorbed in the plant medium 13 is supplied to the plant placed in the plant medium 13, causing the plant to grow. The liquid fertilizer may also be supplied directly to the roots of the plant without passing through the plant medium. Plants that can be grown using the planting cup 5 include fruit vegetables such as strawberries, leafy vegetables, and ornamental plants.

[0027] As described above, the flow suppression unit 8 is disposed vertically directly below the planting holes 4. The liquid fertilizer flows down from the hole 10, which is disposed vertically offset from the planting holes 4, to another body portion 2, and is supplied to the planting hole 4 disposed directly below the hole 10. With this configuration, the planting holes 4 of the plant cultivation device 1 are disposed alternately in the vertical direction. By disposing the planting holes 4 in this manner, it is possible to ensure sufficient space on the outer wall of the plant cultivation device 1 such that the growth of the plants disposed in each planting hole 4 is not hindered by the plants disposed in the other planting holes 4.

[0028] Fig. 4 is a diagram showing the state in which the lid is attached to the body. The lid 6 is configured so as to be able to engage with and fit onto the body 2 that is positioned vertically at the top of the stack. A horizontally parallel straightening plate 7 is disposed inside the lid 6. A hole 70 is opened in the center of the straightening plate 7. The hole 70 is connected to a liquid infusion pipe 12 (not shown) that transports liquid fertilizer stored in the body 2B, which serves as a reservoir, vertically upward, and serves as an outlet for the transported liquid fertilizer.

[0029] The straightening plate 7 is provided with grooves 71, which are multiple groove-shaped flow guides extending radially from the center outward in the horizontal direction. The grooves 71 allow liquid fertilizer to flow inside. The liquid fertilizer flowing out from the holes 70 is guided by the grooves 71 and reaches the side inner wall of the lid 6. The side inner wall of the lid 6 where the liquid fertilizer reaches corresponds to the planting hole 4 of the body 2 arranged directly below in the vertical direction, and the liquid fertilizer that reaches the side inner wall of the lid 6 is guided to the planting hole 4. The grooves 71 are an example of a second flow guide in the present disclosure.

[0030] In the example shown in the figure, the lid 6 is also provided with a kamaboko-shaped flow suppressing part 8A and a truncated cone-shaped flow suppressing part 9A, the upper part of which is a straightening plate 7 rather than a notch, similar to the flow suppressing parts 8 and 9 provided in the body 2. Also, similar to the hole 10 provided in the body 2, a hole 10A, which is a flow guide part, is formed in a portion where there is no flow suppressing part 8A adjacent to the flow suppressing part 8A.

[0031] These flow suppressing parts 8A, 9A and holes 10A exert the same effect as the flow suppressing parts 8, 9 and holes 10 arranged in the body 2, and have the function of regulating the flow of the liquid fertilizer supplied from the straightening plate 7 and ensuring that the liquid fertilizer flows down from the holes 10A corresponding to the planting holes 4 arranged in the lower part. The flow suppressing parts 8A, 9A are an example of a third flow suppressing part in the present disclosure. In addition, a claw part 3A is arranged in a part corresponding to the flow suppressing part 8A on the outer wall of the lid part 6. By matching the claw part 3A with the flow suppressing part 8A, there is no hole through which the liquid fertilizer inside can escape to the outside in the fitting part, as in the case where the body parts 2 are fitted together. Therefore, even when the body part 2 and the lid part 6 are fitted together, a sealing material such as a packing is not required in the fitting part.

[0032] Fig. 5 is a cross-sectional view of the plant cultivation device. Fig. 6 shows a three-stage configuration of the body 2 of the plant cultivation device 1 including the body 2B that is a reservoir, but the number of stages of the body 2 can be changed as desired depending on the installation environment and is not limited to three stages. The plant cultivation device 1 has a stack structure in which the body parts 2 are stacked. The body parts 2 are fitted together by engaging a plurality of protrusions provided on the body parts 2 with claw parts 3 arranged vertically above the body parts 2.

[0033] Of the body 2, the body 2B having a flat bottom functions as a reservoir for storing liquid fertilizer. A pump P that operates by power is provided in the reservoir portion. A transfusion pipe 12 that transports the liquid fertilizer is connected to the pump P. The transfusion pipe 12 is disposed so as to pass through the center of the plant cultivation device 1, and the outlet of the transfusion pipe 12 is disposed above a straightening plate 7 provided on a lid portion 6 that is disposed at the vertical upper end of the plant cultivation device 1.

[0034] The straightening plate 7 has a role of diffusing the liquid fertilizer transported by the infusion pipe 12 toward the inner side wall of the plant cultivation device 1. Specifically, the straightening plate 7 has grooves 71 extending radially in the horizontal direction, and the liquid fertilizer is guided through the grooves 71 to the outer side wall of the lid 6. The liquid fertilizer flowing down the outer side wall of the lid 6 is restricted in flow by flow suppressing parts 8A and 9A, flows down through hole 10A to the body 2, and is supplied to the planting hole 4 provided directly below hole 10A.

[0035] A kamaboko-shaped flow suppression section 8 and a cone-shaped flow suppression section 9 are arranged on the vertically lower side of the body section 2. The two flow suppression sections restrict the movement of the liquid fertilizer flowing down from the planting holes 4 and guide it to holes 10. Holes 10 correspond to planting holes 4 provided in another body section 2 fitted to the vertically lower side of the body section 2. The flow suppression sections 8 and 9 are connected to each other. This connection makes it possible to reduce material costs. In addition, because the flow suppression section 8 is kamaboko-shaped and the flow suppression section 9 is cone-shaped, the liquid fertilizer, whose flow is restricted, is prevented from accumulating in the flow suppression sections 8 and 9.

[0036] The body parts 2 are fitted together by engaging multiple protrusions provided on the body parts 2 with claw parts 3 arranged vertically above the body parts 2. The claw parts 3 are arranged in positions corresponding to the flow suppressing parts 8 and are away from the openings of the holes 10, so that the fitting can be achieved without sealing.

[0037] The hole 10 corresponds to a planting hole 4 provided in another body part 2 fitted vertically below the body part 2. The liquid fertilizer, the flow of which is restricted by the flow suppressing parts 8, 9, passes through the hole 10 and is supplied to the planting hole 4 directly below. A basket-shaped planting cup 5 can be fitted into the planting cup 5, and a sponge-like plant culture medium 13 (not shown) can be placed in the planting cup 5. The plant culture medium 13 is It retains a portion of the supplied liquid fertilizer and supplies it to the plants being grown.

[0038] Liquid fertilizer that has not been absorbed into the plant medium 13 or plant roots is restricted in flow by flow suppression section 8 arranged vertically below planting hole 4 and flow suppression section 9 arranged diagonally below, and changes direction, passing through hole 10 and being supplied to the next planting hole 4 arranged in the trunk 2. The liquid fertilizer repeats this movement to be supplied to all planting holes 4 of the plant cultivation device 1, and finally returns to trunk 2B, which serves as the reservoir.

[0039] A pump P is disposed in the body 2B, which is a reservoir. The pump P may be, for example, an electric pump, and may be operated for one minute every hour by a time switch. In addition, a control device may be provided that monitors the state of the plant cultivation device 1 while controlling the operating state of the pump P. The control device may include, for example, a sensor that monitors the state of the liquid fertilizer, an alarm unit that notifies of abnormalities, and the like.

[0040] Examples of the sensor include an EC (electrical conductivity) sensor, a water temperature sensor, and a water level sensor. The EC sensor is a sensor that monitors the composition of the liquid fertilizer. If the measurement value of the sensor indicates an abnormal value, the liquid fertilizer or water can be replenished as necessary to adjust the concentration of the liquid fertilizer. The water temperature sensor is a sensor that measures the water temperature, and if the water temperature sensor indicates an abnormal value, the plant cultivation device 1 can be heated or shaded. If the plant cultivation device 1 is placed indoors, the air conditioner can be operated to keep the plant cultivation device 1 at an appropriate temperature. Note that, when the pump P is operating, the liquid fertilizer inside the reservoir changes in temperature as the liquid fertilizer is stirred. The water temperature sensor monitors the temperature change that occurs with the operation of the pump P, and the operating state of the pump P can also be determined. The water level sensor is a sensor that measures the water level, and if the water level sensor indicates a low value, the reservoir can be replenished with liquid fertilizer.

[0041] In addition, an image sensor or a hydrogen ion concentration (pH) sensor may be added as a sensor, and the output information of these sensors can be used to maintain the health and growth condition of the plant in an appropriate state.

[0042] Furthermore, the plant cultivation device 1 may be provided with a light-shielding lid at the vertical upper end of the lid portion 6. By covering the vertical upper end with the lid, it is possible to prevent the liquid fertilizer from leaking out of the device when it is forcefully supplied onto the straightening plate 7. Furthermore, by making the lid light-shielding, it is possible to prevent algae from growing on the straightening plate 7 and the liquid fertilizer from deteriorating.

[0043] <Action and effect> According to the plant cultivation device 1 of this embodiment, the plant cultivation device 1 has a stack structure in which multiple trunk parts 2 are stacked vertically, and each structure is engaged with the claw parts 3 to fit together, making it easy to assemble. In addition, the engagement can be released to release the fitting, and the device can be freely transported and reassembled. In addition, since the device can be disassembled, it is easy to harvest and replant plants.

[0044] Furthermore, since the body 2 is provided with the flow suppressing parts 8 and 9, the flow of the liquid fertilizer can be appropriately controlled, and the liquid fertilizer can be effectively caused to flow down through the hole 10 into the planting hole 4. Therefore, while it is possible to supply the necessary amount of liquid fertilizer to the plant medium 13, it is possible to efficiently control the amount of liquid fertilizer that flows down as a whole, and the operation of the pump P can be minimized, resulting in excellent energy efficiency. Furthermore, since the liquid fertilizer flows down through the inner side wall of the body 2, the hole 10, and the planting hole 4, the liquid fertilizer will not reach the fitting part provided at a position corresponding to the flow suppressing part 8, for example, and no sealing is required for the fitting. Furthermore, since the range in which the liquid fertilizer flows down is limited, cleaning is easy and sanitary conditions can be easily maintained.

[0045] Furthermore, the plant cultivation device 1 is provided with flow suppression sections 8, 9 on the inside of the body 2 to change the flow direction of the liquid fertilizer, so that the planting holes 4 can be arranged alternately in the vertical direction while efficiently distributing the liquid fertilizer. By arranging the planting holes 4 alternately, an aesthetically pleasing plant cultivation device can be provided. Furthermore, by arranging the planting holes 4 alternately, sufficient space is secured in which the plants planted in each planting hole 4 can grow, and light blockage by other plants can be suppressed. Therefore, the plant cultivation device 1 as a whole can increase the quality and yield of the plants.

[0046] Although the present embodiment has been described above, the contents of the present invention are not limited to the above embodiment. For example, the length of the trunk 2 may be variable. Some plants grow tall, while others do not, depending on the type. When cultivating a plant that grows tall, a long trunk 2 can be used to prevent the plant's growth from being hindered. When cultivating a plant that does not grow tall, a short trunk 2 can be used to increase the cultivation efficiency. In addition, a large number of this plant cultivation device 1 can be arranged to form a plant factory.

[0047] The features contained in the above disclosed embodiments and their applications can be combined with each other. [Explanation of symbols]

[0048] 1··Plant cultivation equipment 2,2B ··Body 3,3A·Claw part 4··Planting hole 5. Planting cup 6...Lid part 7. Rectifier plate 8,8A・Flow suppression part 9,9A...Flow suppression part 10,10A...hole 11. Cutout hole 12...Infusion tube 13. Plant Media 70...hole 71 Groove P··Pump

Claims

1. The liquid fertilizer is allowed to flow down the side inner wall, and the tank has a plurality of pipe-shaped body portions that can be fitted together in the vertical direction, A plurality of planting holes, each of which is arranged horizontally on the outer circumferential surface of the body portion and is arranged so as to be staggered with respect to each other when viewed vertically after fitting the body portion; A first flow suppression part in a shape of a kamaboko that is arranged in the body and prevents the liquid fertilizer from flowing down to places other than the planting hole; A first guide section arranged adjacent to the first flow suppression section and concentrating the liquid fertilizer and causing it to flow down to the planting hole; A plant cultivation device comprising:

2. The planting hole is arranged vertically above the body, The first flow suppression part is arranged vertically below the body part and vertically below the planting hole. The plant cultivation device according to claim 1.

3. The center of the body has a through hole through which a transfusion pipe that transports the liquid fertilizer stored in the lower part to the upper part in the vertical direction by power can pass, A cone-shaped second flow suppressing portion that inhibits the inflow of the liquid fertilizer flowing down is arranged around the through hole, and the first flow suppressing portion and the second flow suppressing portion are connected to each other. The plant cultivation device according to claim 1 or 2.

4. a claw portion engageable with another body portion on an outer wall of the body portion corresponding to the first flow suppressing portion; The fitting is realized by the claw portion engaging with the other body portion. The plant cultivation device according to claim 1 or 2.

5. A straightening plate parallel to the horizontal direction is disposed on the upper portion of the body portion that is disposed at the vertical upper end thereof, The straightening plate is provided with a groove-shaped second guide portion that guides the liquid fertilizer to the planting hole of the trunk portion. The plant cultivation device according to claim 2.

6. A third flow suppression section is arranged at the vertical lower part of the straightening plate to suppress the liquid fertilizer flowing down from the second flow guide section from flowing down to a place other than the planting hole. The plant cultivation device according to claim 5.

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