JP6661146B2 - Growth support device and plant growth device - Google Patents

Description

  The present invention relates to a growth assisting device and a plant growing device that assist in growing a plant by locally cooling or heating a plant planted in a culture medium.

  When cultivating plants such as vegetables and fruits in an indoor cultivation space such as a greenhouse or a factory, the temperature of the cultivation space is generally adjusted to effectively grow or harvest the plants. Conventionally, in summer and winter, cooling and heating equipment has been used to cool or heat a cultivation space to maintain the temperature in the cultivation space at a temperature suitable for plant growth. However, such cooling and heating equipment cools or heats not only plants but also the entire cultivation space, and is considered to be very inefficient. Therefore, in order to efficiently control the temperature of the plant, various attempts have been made to assist the growing of the plant by locally cooling or heating the plant.

  For example, Patent Literature 1 discloses a cultivation temperature adjustment system that increases the yield by adjusting the cultivation temperature. The cultivation temperature control system (5) adjusts the temperature of the cultivation soil in which a plurality of strawberries (4) are planted side by side. The cultivation temperature control system (5) includes first and second pipes (6, 7) having water flowing therein and having a circular cross section, and ends of the first and second pipes (6, 7). And a connecting portion (8) for connecting each other. A first pipe (6) is arranged along a direction in which a plurality of strawberries (4) are arranged on the soil, and a second pipe (7) is arranged in the soil below the first pipe (6). It is arranged along. Then, by adjusting the temperature of the water flowing through the first pipe (6) and the second pipe (7), the cultivation temperature is adjusted. It should be noted that reference numerals in Patent Document 1 are shown in parentheses.

JP 2014-176338 A

  However, in the conventional system (apparatus), since the cross-sectional shape of the pipe (water pipe) is circular, the water pipe (first pipe) arranged on the cultivation soil is not suitable for the cultivation surface or the plant (for example, strawberry crown). Part) can be contacted or approached only at one point in the circumferential direction. By using a water pipe having a circular cross-section in this way, the contact area or proximity area to the plant becomes extremely small, and only the water pipe placed on the culture medium efficiently heats or cultivates the soil or the plant. Cannot be cooled. Therefore, the conventional system prepares at least two water pipes, arranges one water pipe (first pipe) on the medium, and puts the other water pipe (second pipe) underground. It needed to be buried. That is, in the related art, it is necessary to provide a water pipe having two roles. Therefore, it has been a problem of the conventional system that the system becomes complicated and a burden such as a running cost becomes relatively large.

  The present invention has been made in order to solve the above-described problems, and an object of the present invention is to provide a growth assisting device that more efficiently cools or heats a plant to assist in growing the plant, and a growth assisting device. An object of the present invention is to provide a plant cultivation device provided.

The growth assisting device according to claim 1 is a growth assisting device for locally cooling or heating a plant planted in a culture medium,
One or more water pipes through which a liquid having a temperature lower or higher than the ambient temperature flows,
The water pipe is a long body having a rectangular cross section, at least one side of the rectangular cross section of the water pipe is disposed at a position close to or in contact with the plant on the medium ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. and said that you are.

The growth assisting device according to claim 2 is a growth assisting device for locally cooling or heating a plant planted in a culture medium,
One or more water pipes through which a liquid having a temperature lower or higher than the ambient temperature flows,
The water pipe is a long body having a rectangular cross-section, arranged so that one side of the rectangular cross-section of the water pipe is in contact with the surface of the culture medium ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. and said that you are.

  According to a third aspect of the present invention, there is provided the growth assisting device according to the second aspect, wherein the other side of the water passage pipe having a rectangular cross section is arranged so as to approach or contact the plant. And

The plant growing device according to claim 4 is a plant growing device for growing a plant planted in a culture medium by locally cooling or heating the plant,
A plant is planted, or a medium in which the plant is planted,
A water pipe connected to a water supply device capable of supplying a liquid having a lower or higher temperature than the ambient temperature, and the liquid passing therethrough,
The water pipe is a long body having a rectangular cross section, at least one side of the rectangular cross section of the water pipe is disposed at a position close to or in contact with the plant on the medium ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. and said that you are.

The plant growing apparatus according to claim 5, which is a plant growing apparatus for growing a plant planted in a culture medium by locally cooling or heating the plant,
A plant is planted, or a medium in which the plant is planted,
A water pipe connected to a water supply device capable of supplying a liquid having a lower or higher temperature than the ambient temperature, and the liquid passing therethrough,
The water pipe is a long body having a rectangular cross section, is arranged such that one side of the rectangular cross section of the water pipe contacts the medium surface ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. and said that you are.

The plant growing device according to claim 6 is the plant growing device according to claim 4 or 5 , wherein the plant is a strawberry seedling, and a crown portion of the strawberry seedling is heated or cooled by the water pipe. It is characterized by.

According to the growing assistance device of the first aspect of the present invention, the water pipe is a long body having a rectangular cross section, and the water pipe is disposed at a position where at least one side of the rectangular cross section is close to or in contact with the plant. It is characterized by being performed. That is, the growing assistance device of the present invention has a relatively large area of contact or contact with the plant because the water pipe formed into a rectangular cross section approaches or comes into contact with the plant on the side (side surface). With the configuration, the plant can be efficiently cooled or heated. Further, since the water pipe is formed of a corrugated pipe having flexibility, for example, it is possible to appropriately arrange the corrugated pipe along an array of plants planted so as to be bent or bent. It is. Furthermore, by arranging at least a part of the plant in the concave portion of the water pipe, the proximity area and the contact area between the water pipe and the plant can be effectively increased, and the plant can be cooled or heated more efficiently. Can be. And since the recessed part is formed continuously along the longitudinal direction of the water pipe, a plurality of plants planted along the longitudinal direction of the water pipe are accommodated in each concave part, and more efficient cooling or heating is performed. Warm can be provided.

According to the growth assisting device of the second aspect of the present invention, the water pipe is a long body having a rectangular cross section, and the water pipe is arranged such that one side of the rectangular cross section of the water pipe is in contact with the culture medium surface. It is characterized by. That is, the growth assisting device of the present invention has a relatively large contact area with the culture medium because the water pipe formed into a rectangular cross section comes into contact with the surface of the culture medium at the sides (sides), and the culture medium has a simple configuration. It can be cooled or heated efficiently. As a result, it is possible to efficiently control the temperature of the plant via the medium. Further, since the water pipe is formed of a corrugated pipe having flexibility, for example, it is possible to appropriately arrange the corrugated pipe along an array of plants planted so as to be bent or bent. It is. Furthermore, by arranging at least a part of the plant in the concave portion of the water pipe, the proximity area and the contact area between the water pipe and the plant can be effectively increased, and the plant can be cooled or heated more efficiently. Can be. And since the recessed part is formed continuously along the longitudinal direction of the water pipe, a plurality of plants planted along the longitudinal direction of the water pipe are accommodated in each concave part, and more efficient cooling or heating is performed. Warm can be provided.

  According to the growth assisting device of the third aspect of the present invention, in addition to the invention of the second aspect, the side (side surface) of the water pipe formed in a square cross section comes close to or comes into contact with the plant. A relatively large area of contact or contact with the plant can be ensured, and the plant can be cooled or heated more efficiently.

According to the plant growing apparatus according to claim 4 of the present invention, the water pipe is a long body having a rectangular cross section, and is disposed at a position where at least one side of the rectangular cross section of the water pipe is close to or in contact with the plant. It is characterized by being performed. That is, the plant growing apparatus of the present invention has a relatively large area or contact area with the plant because the water pipe formed into a rectangular cross section approaches or comes into contact with the plant on the side (side surface). With this configuration, the plant can be efficiently cooled or heated, and the plant can be grown in a more desirable temperature environment. Further, since the water pipe is formed of a corrugated pipe having flexibility, for example, it is possible to appropriately arrange the corrugated pipe along an array of plants planted so as to be bent or bent. It is. Furthermore, by arranging at least a part of the plant in the concave portion of the water pipe, the proximity area and the contact area between the water pipe and the plant can be effectively increased, and the plant can be cooled or heated more efficiently. Can be. And since the concave part is formed continuously along the longitudinal direction of the water pipe, a plurality of plants planted along the longitudinal direction of the water pipe are accommodated in each concave part, and more efficient cooling or heating is performed. Warm can be provided.

According to the plant growing apparatus according to claim 5 of the present invention, the water pipe is a long body having a rectangular cross section, and the water pipe is arranged such that one side of the rectangular cross section of the water pipe is in contact with the culture medium surface. It is characterized by. That is, the plant growing device of the present invention has a relatively large contact area with the culture medium because the water pipe formed in a rectangular cross section comes into contact with the surface of the culture medium at the sides (sides). It can be cooled or heated efficiently. As a result, the plant can be grown in a more desirable temperature environment. Further, since the water pipe is formed of a corrugated pipe having flexibility, for example, it is possible to appropriately arrange the corrugated pipe along an array of plants planted so as to be bent or bent. It is. Furthermore, by arranging at least a part of the plant in the concave portion of the water pipe, the proximity area and the contact area between the water pipe and the plant can be effectively increased, and the plant can be cooled or heated more efficiently. Can be. And since the recessed part is formed continuously along the longitudinal direction of the water pipe, a plurality of plants planted along the longitudinal direction of the water pipe are accommodated in each concave part, and more efficient cooling or heating is performed. Warm can be provided.

According to the plant growing device of the sixth aspect of the present invention, in addition to the invention of the fourth or fifth aspect, it is possible to more efficiently perform temperature management in strawberry growing.

BRIEF DESCRIPTION OF THE DRAWINGS The schematic perspective view of the plant growing apparatus of one Embodiment of this invention. The top view of the plant growing apparatus of FIG. FIG. 3A is a cross-sectional view taken along the line AA of the plant growing apparatus of FIG. 2, and FIG. FIG. 3B is a sectional view of the plant growing apparatus taken along line BB in FIG. FIG. 2 is an exploded perspective view of a growth assisting device constituting the plant growing device of FIG. 1. FIG. 1 is a schematic diagram illustrating an entire configuration of a plant growing device according to an embodiment of the present invention. The schematic sectional drawing of the plant growing apparatus of another Example of this invention. The schematic sectional drawing of the plant growing apparatus of another Example of this invention. The schematic sectional drawing of the plant growing apparatus of another Example of this invention. FIG. 6 is a schematic perspective view of a plant growing apparatus according to another embodiment of the present invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that the shape of each drawing referred to in the following description is a conceptual diagram or a schematic diagram for describing a suitable shape and size, and the dimensional ratio and the like do not always match the actual dimensional ratio. That is, the present invention is not limited to the dimensional ratios in the drawings.

  The plant growing apparatus 10 of one embodiment of the present invention grows a plant planted in a culture medium by locally cooling or heating the plant. The growth assisting device 100 provided in the plant growing device 10 is configured to assist and promote the growth by efficiently managing the temperature of the plant. In the present embodiment, the plant is a strawberry seedling P cultivated at a high place on a gantry in a house environment. Generally, in house cultivation of strawberry seedlings P, it is important to cool strawberry seedlings P in summer when the temperature is high and to warm strawberry seedlings P in winter when the temperature is low. It is known that in order to locally control the temperature of the strawberry seedlings P, it is efficient to mainly cool or heat the crown (growth point) P1 (see FIG. 4) near the root of the plant. ing. However, the technical idea of the present invention is also applicable to temperature management for other fruits, vegetables, plants such as flowers, and different planting environments, and it is understood that the present invention is not limited to the embodiments described below. Not even.

  FIG. 1 is a schematic perspective view of a plant growing apparatus 10 according to one embodiment of the present invention. FIG. 2 is a schematic plan view of the plant growing apparatus 10. 3A and 3B are a cross-sectional view (AA) of the plant growing apparatus 10 and a partially enlarged view thereof. FIG. 4 is a horizontal (BB) sectional view of the plant growing apparatus 10.

  As shown in FIG. 1, a plant growing apparatus 10 includes a container 11 installed at a high place in a greenhouse or the like away from the ground, and a medium 12 formed in the container 11 for planting a strawberry seedling P. And a growth assisting device 100 installed on the culture medium 12.

  The container 11 is a rectangular casing that opens upward, and can hold a predetermined amount of soil. The container 11 is formed in a substantially rectangular parallelepiped shape having one long side, and has a width direction and a longitudinal direction in plan view (see FIG. 2). The culture medium 12 is defined on the upper surface of the container 11 by filling the container 11 with the soil. In the present embodiment, the width of the container 11 is determined by a dimension (for example, about 0.4 m) in which two strawberry seedlings P can be arranged in the width direction. On the other hand, the total length of the container 11 is determined by a dimension (for example, about 10 m) in which a large number of strawberry seedlings P can be arranged along the longitudinal direction. Further, the container 11 is supported at a high place in a state of being suspended from the ground by a pedestal 13 having a plurality of legs (see FIG. 6). This allows the grower to work without bending his waist. The container 11 of the present embodiment is made of a foamed resin such as styrene foam, but may be made of any other material such as hard synthetic resin or wood.

  The culture medium 12 is a region having a predetermined width and extending in the longitudinal direction. As shown in FIG. 2, a plurality of strawberry seedlings P are continuously planted in the medium 12 at predetermined intervals along the longitudinal direction of the container 11. Two strawberry seedlings P are arranged near both ends of the culture medium 12 in the width direction. That is, two rows of strawberry seedlings P are arranged in a straight line on the culture medium 12 of the plant growing apparatus 10. As shown in FIG. 3B and FIG. 4, each strawberry seedling P is planted shallowly so that the crown portion P1 is not hidden in the cultivation.

  The growth assisting device 100 is installed on the culture medium 12 so that each strawberry seedling P can be locally cooled or heated. In particular, the growth assisting device 100 directly cools or heats the crown portion P1 of the strawberry seedling P, and indirectly cools or heats the strawberry seedling P by cooling or heating the culture medium 12 itself. It is installed as follows. Specifically, the growth assisting device 100 includes a water pipe 101 through which cold water or hot water (a liquid having a temperature lower or higher than the environmental temperature) flows, and a water supply device 103 for supplying cold water or hot water to the water pipe 101. And In the present embodiment, two water pipes 101 extend substantially linearly along the row of strawberries seedlings P, and are placed on the culture medium 12 so as to approach or contact each strawberries seedling P. Have been. Each water pipe 101 is connected to a pipe 103 a of a water supply device 103 via a joint 102. Then, cold water or hot water is supplied to the water pipe 101 by the pipe 103a, and the liquid flows inside the water pipe 101. Note that cold water or hot water means a liquid whose temperature is relatively low or high with respect to the ambient temperature or the outside air temperature, and does not indicate a liquid having a specific temperature. In the present embodiment, water is supplied to the inside of the water pipe, but another liquid such as oil may be used instead of water.

  The water pipe 101 is a flexible long body having a square cross section. More specifically, the water pipe 101 is a rectangular corrugated flexible pipe in which concave portions 101a and convex portions 101b are alternately continuous in the longitudinal direction. As shown in FIG. 3, the cross section of the water pipe 101 is formed in a substantially square shape. And each water pipe 101 is linearly arranged on the culture medium 12 along the longitudinal direction so as to follow each row of the strawberry seedlings P. In the cross section of the plant growing device 10, one side of the water pipe 101 approaches or contacts the crown portion P <b> 1 of the strawberry seedling P, and another side of the water pipe 101 is in contact with the surface of the culture medium 12. That is, the water pipe 101 functions to cool or heat both the crown P1 of the strawberry seedlings P and the culture medium 12. Note that the term "close" means that the plant whose temperature is to be adjusted is a state in which the water pipe and the plant are arranged at a distance capable of transmitting the cool air or hot air of the water pipe cooled or heated by the liquid. Is shown.

  As shown in FIG. 4, in a plan view (horizontal cross section) of the plant growing device 10, a part of the strawberry seedling P (crown portion P <b> 1) is arranged in the concave portion 101 a of the water pipe 101. That is, the pipe wall of the water pipe 101 cooled or heated by the water flow approaches or contacts the crown portion P1 from three directions. Thereby, crown part P1 can be cooled or heated efficiently. Further, in the present embodiment, since the concave portions 101a and the convex portions 101b are formed alternately and continuously, the concave portion 101a for accommodating each strawberry seedling P can be arbitrarily selected. Further, since the pipe wall of the water pipe 101 is formed with irregularities, a relatively large area of the pipe wall that is in contact with and close to the surface of the culture medium 12 is ensured as compared with a straight pipe. Thereby, the culture medium 12 can be efficiently cooled or heated.

  The water pipe 101 of the present embodiment is formed of a synthetic resin such as (but not limited to) polyethylene, vinyl chloride, or the like. In the present embodiment, one side of the convex portion 101b is set to be about 1.35 times one side of the concave portion 101a. Further, in the present embodiment, the water pipe 101 having one side of the concave portion 101a of about 100 mm is employed. However, the size and shape of the water pipe according to the present invention can be arbitrarily changed within the technical scope of the present invention, and are appropriately selected according to the type of plant and the area of the medium.

  FIG. 5 is an exploded perspective view of the water pipe 101, the joint part 102, and the pipe 103a of the growth assisting device 100. As shown in FIG. 5, a square end on the water supply side of the water pipe 101 is connected to an end of a circular pipe 103 a via a joint 102. Specifically, the joint portion 102 includes first and second joints 102a and 102b for converting a small diameter to a large diameter, and a third joint 102c for converting a circle into a square. Through the first, second, and third joints 102a, 102b, and 102c, the water pipe 101 and the pipe 103a having different diameters and shapes are connected to each other. This makes it possible to supply liquid such as cold water or hot water from the pipe 103a to the water pipe 101.

  FIG. 6 is a schematic diagram illustrating the entire system of the plant growing apparatus 10 of the present embodiment. As shown in FIG. 6, the water supply device 103 includes a pipe 103a connected to the water pipe 101 via a joint 102, and a circulation pump 103b connected to the pipe 103a. The circulation pump 103b has a discharge port and a suction port, and the upstream and downstream pipes 103a are connected to the discharge port and the suction port, respectively. The pipe 103a on the discharge port side is connected to the upstream end of the water pipe 101, and the pipe 103a on the suction port side is connected to the downstream end of the water pipe 101. That is, the liquid sent from the discharge port of the circulation pump 103b flows through the water pipe 101 through the pipe 103a on the discharge port side. Then, the liquid flowing out of the downstream end of the water pipe 101 flows into the suction port of the circulation pump 103b through the pipe 103a on the suction port side. The liquid flowing into the circulation pump 103b is sent out again from the discharge port toward the water pipe 101. Thus, in the plant growing apparatus 10 of the present embodiment, a liquid (cold water or hot water) circulation system is configured.

  In summer, the plant growing apparatus 10 operates to circulate cold water by the circulation pump 103b. On the other hand, in winter, the plant growing apparatus 10 operates to circulate hot water by the circulation pump 103b. In this embodiment, a part (horizontal part) of the water pipe 101 is buried underground. In general, the temperature in the ground is almost constant at about 15 ° C. throughout the year. In the summer, the temperature in the ground is lower than the environmental temperature (outside air temperature), and in the winter, the temperature in the ground is lower than the environmental temperature. Is hotter than Therefore, in the pipe 103a buried in the ground, in summer, the liquid radiates heat in the ground and becomes lower in temperature than outside air, so that cold water is generated. On the other hand, in winter, hot water is generated by the liquid being heated in the ground and having a higher temperature than the outside air. That is, the plant growing apparatus 10 of the present embodiment generates cold water or hot water to control the temperature of the strawberry seedlings P by effectively using the underground heat to adjust the water temperature.

  Hereinafter, the operation and effect of the plant growing device 10 and the growing assistance device 100 according to the embodiment of the present invention will be described.

  According to the plant growing device 10 and the growing assisting device 100 of the present embodiment, the water pipe 101 is a corrugated flexible pipe having a rectangular cross section, and at least one side of the rectangular cross section of the water pipe 101 is a strawberry seedling P and It is arranged at a position close to or in contact with the culture medium 12. That is, since the water pipe 101 formed in a square cross section approaches or comes into contact with the strawberry seedlings P and the culture medium 12 on the sides (sides), the strawberry is compared with the conventional technique using a round (circular cross section) water pipe. A relatively large area close to or in contact with the seedlings P and the medium 12 can be ensured. This is because the conventional water pipe having a circular cross section can only contact or be closest to a strawberry seedling and a culture medium at a point (in a cross section), whereas the water pipe 101 having a rectangular cross section has a side (line). This makes it possible to approach or come into contact with the strawberry seedlings P and the medium 12. Further, the water pipe 101 is provided with a plurality of recesses 101a that can accommodate the crown portion P1 of the strawberry seedlings P. By arranging the crown portion P1 in the concave portion 101a, the tube wall approaches or contacts the crown portion P1 from three directions. That is, by disposing a part of the strawberry seedlings P in the concave portion 101a of the water pipe 101, the proximity area and the contact area between the heated or cooled water pipe 101 and the strawberry seedling P can be further increased. Therefore, the plant growing device 10 of the present embodiment can more efficiently perform the direct or indirect temperature adjustment important for growing the strawberry seedlings P.

[Modification]
The present invention is not limited to the above embodiment, and can take various modifications. Hereinafter, modified examples of the present invention will be described. In each modification, components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise described, and the description thereof will be partially omitted.

(1) In the plant growing device 10 and the growth assisting device 100 of the above embodiment, the cooled or heated water pipe 101 is brought into close proximity to or contact with the plant (strawberry seedling P) and simultaneously with the culture medium 12. Although arranged, the present invention is not limited to the above embodiment. For example, in the plant growing device 20 and the growing assisting device 200 shown in FIG. 7, one water pipe 201 is in contact with the culture medium 22, but is arranged so as not to contact or approach the strawberry seedlings P. The water pipe 201 is a corrugated flexible pipe having a rectangular cross section, and has a width larger than a height. The plant growing device 20 and the growing assistance device 200 of the present modification are characterized in that one side of a rectangular cross section of the water pipe 201 is arranged to be in contact with the surface of the culture medium 22. As a result, the water pipe 201 having a rectangular cross section comes into contact with the surface of the culture medium 22 at the sides (sides), so that a relatively large contact area with the culture medium 22 is ensured, and the culture medium 22 is efficiently cooled or heated. can do. As a result, it is possible to efficiently control the temperature of the strawberry seedlings P via the medium 22.

(2) In the plant cultivation device 10 and the cultivation assistance device 100 of the above embodiment, the cooled or heated water pipe 101 is brought into close proximity to or contact with the plant (strawberry seedling P) and simultaneously with the culture medium 12. Although arranged, the present invention is not limited to the above embodiment. For example, in the plant growing device 30 and the growing assistance device 300 illustrated in FIG. 8, the water pipe 301 is arranged so as to be in contact with or close to the strawberry seedlings P but not to be in contact with the culture medium 32. The water pipe 301 has a configuration similar to that of the water pipe 101 of the embodiment, but is supported by the legs 304 so as to be separated from the culture medium 32. As shown in FIG. 8, this modification can be adopted when the width of the container 31 or the culture medium 32 is small and the water pipe 301 cannot be placed on the culture medium 32. And also in this modified example, similarly to the above-mentioned embodiment, since the water pipe 301 formed in a square cross section approaches or contacts the strawberry seedling P on the side (side surface), the proximity area or contact with the strawberry seedling P is increased. A relatively large area can be secured. As a result, it is possible to efficiently control the temperature of the strawberry seedlings P.

(3) In the plant growing device 10 and the growing assisting device 100 of the above embodiment, the water pipe 101 formed of a square corrugated flexible tube is used, but the present invention is not limited to the above embodiment. For example, the water pipe may be a straight pipe material having no irregularities on the outer surface as long as the cross section is rectangular. Alternatively, like the plant growing device 40 and the growing assistance device 400 shown in FIG. 9, the concave portion 401 a may be intentionally formed in the water pipe 401 in accordance with the planting position of the strawberry seedling P.

(4) In the plant growing device 10 of the above embodiment, the liquid is circulated by the circulation device and the temperature is adjusted by the underground heat, but the present invention is not limited to the embodiment. That is, the liquid supplied from the pipe may be drained after passing through the water pipe. Instead of using underground heat, a cooled or heated liquid may be sent to the water pipe by separately providing a cooler or a heater upstream of the water pipe.

(5) In the plant growing apparatus 10 of the embodiment, the plurality of strawberry seedlings P are linearly arranged, but the plurality of strawberry seedlings P may be randomly arranged so as to be bent or bent. Even in such a case, the water pipe 101 of the growing assistance device 100 of the present embodiment can be attached to a plurality of strawberry seedlings P by bending or bending a flexible corrugated tube having flexibility. It is possible to arrange the water pipe 101.

(6) The growth assisting device of the present invention can be used in combination with another temperature adjusting device. For example, FIG. 10 shows a plant growing device 50 according to a modification of the present invention. As shown in FIG. 10, in addition to the cultivation assistance device 500 (similar to the cultivation assistance device 100), the plant cultivation device 50 sprays a temperature-adjusted gas locally on the strawberry seedlings P to assist temperature management. An adjusting device 55 is provided. The temperature control device 55 includes a duct 55a having a plurality of outlets 55c so that cold or hot air passes through the inside and blows the cold or hot air toward the local portion of the strawberry seedlings P, and the inside of the duct 55a. A pipe 55b extending therethrough and through which a cooling liquid or a heating liquid flows. The pipe 55b cools or heats the gas inside the duct 55a in the longitudinal direction, and adjusts the temperature of the gas blown out from each blowout port 55c. In the temperature control device 55, the occurrence of a temperature difference in the gas discharged from each outlet 55c is suppressed between the upstream side and the downstream side of the duct 55a. That is, by using the temperature adjusting device 55 in combination with the growth assisting device 500, the temperature of the strawberry seedlings P can be more efficiently managed.

  The present invention is not limited to the above-described embodiments and modified examples, and can be implemented in various modes as long as they belong to the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Plant growing apparatus 11 Container 12 Medium 13 Mounting stand 100 Growth assisting apparatus 101 Water pipe (flexible pipe with a wave)
101a concave portion 101b convex portion 102 joint portion 103 water supply device 103a pipe 103b circulation pump P strawberry seedling (plant)
P1 Crown

Claims (6)

A growth assisting device for locally cooling or heating a plant planted in a medium,
One or more water pipes through which a liquid having a temperature lower or higher than the ambient temperature flows,
The water pipe is a long body having a rectangular cross section, at least one side of the rectangular cross section of the water pipe is disposed at a position close to or in contact with the plant on the medium ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. growing assisting apparatus characterized by there. A growth assisting device for locally cooling or heating a plant planted in a medium,
One or more water pipes through which a liquid having a temperature lower or higher than the ambient temperature flows,
The water pipe is a long body having a rectangular cross-section, arranged so that one side of the rectangular cross-section of the water pipe is in contact with the surface of the culture medium ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. growing assisting apparatus characterized by there.   The cultivation assistance device according to claim 2, wherein the other side of the water pipe having a rectangular cross section is arranged so as to approach or contact the plant. A plant growing device for locally growing or cooling a plant planted in a culture medium,
A plant is planted, or a medium in which the plant is planted,
A water pipe connected to a water supply device capable of supplying a liquid having a lower or higher temperature than the ambient temperature, and the liquid passing therethrough,
The water pipe is a long body having a rectangular cross section, at least one side of the rectangular cross section of the water pipe is disposed at a position close to or in contact with the plant on the medium ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. plant growing apparatus characterized by there. A plant growing device for locally growing or cooling a plant planted in a culture medium,
A plant is planted, or a medium in which the plant is planted,
A water pipe connected to a water supply device capable of supplying a liquid having a lower or higher temperature than the ambient temperature, and the liquid passing therethrough,
The water pipe is a long body having a rectangular cross section, is arranged such that one side of the rectangular cross section of the water pipe contacts the medium surface ,
The water pipe is formed of a corrugated pipe having flexibility, and includes a concave portion for arranging at least a part of the plant on an outer surface, and a plurality of the concave portions are formed along a longitudinal direction of the water pipe. plant growing apparatus characterized by there. The plant growing apparatus according to claim 4, wherein the plant is a strawberry, and a crown portion of the strawberry is heated or cooled by the water pipe.

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