JP2017148020A - Raising aid device and plant growing device - Google Patents

Abstract

There is provided a growth assisting device for assisting plant growth by cooling or heating a plant more efficiently.
A growth assisting device 100 for locally cooling or warming a plant P planted in a culture medium includes one or a plurality of water pipes 101 in which a liquid having a temperature lower or higher than an environmental temperature flows. Prepare. The water flow pipe 101 is a long body having a square cross section, and is arranged so that at least one side of the water flow pipe 101 has a square cross section close to or in contact with the plant P or the surface of the culture medium 12. It is characterized by.
[Selection] Figure 1

Description

  The present invention relates to a growth assisting device and a plant growing device for assisting plant growth by locally cooling or warming a plant planted in a medium.

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

  For example, Patent Document 1 discloses a culture temperature adjustment system that increases the yield by adjusting the culture temperature. The soil temperature adjustment system (5) adjusts the temperature of the soil in which a plurality of strawberries (4) are planted side by side. The culture temperature control system (5) includes a first and second pipes (6, 7) having a circular cross section and water flowing therein, and ends of the first and second pipes (6, 7). And a connecting portion (8) for connecting each other. The first pipe (6) is arranged along the arrangement direction of the plurality of strawberries (4) on the cultivation soil, and the second pipe (7) is arranged in the cultivation medium below the first pipe (6). It is arranged along. Then, the soil temperature is adjusted by adjusting the temperature of the water flowing through the first pipe (6) and the second pipe (7). In addition, the code | symbol of patent document 1 was shown in ().

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 soil is used as the soil surface or plant (for example, a 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 the proximity area to the plant becomes extremely small, so that only the water pipe arranged on the culture medium can efficiently heat the culture soil or the plant. It cannot be cooled. Therefore, the conventional system prepares at least two water pipes, places one water pipe (first pipe) on the culture medium, and places the other water pipe (second pipe) in the ground. He needed to be buried. That is, in the prior art, it was necessary to arrange a water pipe having two roles. Therefore, the problem of the conventional system is that the system becomes complicated and the burden of running cost and the like becomes relatively large.

  The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a growth assistance device that assists plant growth by cooling or heating a plant more efficiently, and the growth assistance device. The object is to provide a plant growing apparatus.

The growth assisting device according to claim 1 is a growth assisting device for locally cooling or warming a plant planted in a medium,
One or a plurality of water pipes in which a liquid having a temperature lower or higher than the environmental temperature flows are provided.
The water pipe is an elongated body having a quadrangular cross section, and at least one side of the water pipe having a quadrangular cross section is disposed at a position close to or in contact with the plant.

The growth assisting device according to claim 2 is a growth assisting device for locally cooling or heating a plant planted in a medium,
One or a plurality of water pipes in which a liquid having a temperature lower or higher than the environmental temperature flows are provided.
The water pipe is a long body having a quadrangular cross section, and is arranged so that one side of the cross section of the water pipe is in contact with the medium surface.

  The growth assisting device according to claim 3 is the growth assisting device according to claim 2, wherein the other side of the cross-sectional square shape of the water pipe is arranged so as to be close to or in contact with the plant. And

  The growth assisting device according to claim 4 is the growth assisting device according to any one of claims 1 to 3, wherein the water pipe includes a recess in which at least a part of the plant is disposed on an outer surface. It is characterized by that.

  The growth assisting device according to claim 5 is the growth assisting device according to any one of claims 1 to 4, wherein a plurality of the recesses are formed along a longitudinal direction of the water pipe. To do.

  The growth assisting device according to claim 6 is the growth assisting device according to any one of claims 1 to 5, wherein the water pipe is formed of a corrugated tube having flexibility. And

The plant growing apparatus according to claim 7 is a plant growing apparatus for locally growing or cooling a plant planted in a culture medium,
A medium in which a plant is planted or a plant is planted;
A water pipe that is connected to a water supply device capable of supplying a liquid having a temperature lower or higher than an environmental temperature, and the liquid passes through the interior thereof.
The water pipe is a long body having a quadrangular section, and at least one side of the cross section of the water pipe is arranged at a position close to or in contact with the plant.

The plant growing apparatus according to claim 8 is a plant growing apparatus for locally growing or cooling a plant planted in a culture medium,
A medium in which a plant is planted or a plant is planted;
A water pipe that is connected to a water supply device capable of supplying a liquid having a temperature lower or higher than an environmental temperature, and the liquid passes through the interior thereof.
The water pipe is a long body having a quadrangular cross section, and is arranged such that one side of the cross section of the water pipe is in contact with the medium surface.

  The plant growing apparatus according to claim 9 is the plant growing apparatus according to claim 8 or 9, wherein the water pipe is formed of a corrugated pipe having flexibility.

  The plant growing device according to claim 10 is the plant growing device according to any one of claims 7 to 9, wherein the plant is a strawberry seedling, and a crown portion of the strawberry seedling is heated by the water pipe. Or it is cooled.

  According to the growth assisting device according to claim 1 of the present invention, the water pipe is a long body having a quadrangular cross section, and is arranged at a position where at least one side of the cross section of the water pipe is close to or in contact with the plant. It is characterized by being. That is, the growth auxiliary device of the present invention has a water pipe formed in a quadrangular cross-section in proximity to or in contact with the plant at the side (side surface), so that the proximity area or contact area to the plant is relatively large and simple. The plant can be efficiently cooled or heated by the configuration.

  According to the growth assisting apparatus according to claim 2 of the present invention, the water pipe is a long body having a square cross section, and is arranged so that one side of the cross section of the water pipe is in contact with the medium surface. It is characterized by. That is, in the growth assisting device of the present invention, the water pipe formed in a quadrangular cross section is in contact with the medium surface at the side (side surface), so that a relatively large contact area with the medium is ensured, and the medium is configured with a simple configuration. It can be efficiently cooled or heated. As a result, it becomes possible to efficiently control the temperature of the plant via the medium.

  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 quadrangular cross section is close to or in contact with the plant. It is possible to secure a relatively large area or contact area with the plant and cool or warm the plant even more efficiently.

  According to the growth assisting device according to claim 4 of the present invention, in addition to the invention according to any one of claims 1 to 3, by arranging at least a part of the plant in the recessed portion of the water pipe, The proximity area and contact area between the water pipe and the plant can be effectively increased, and the plant can be cooled or warmed more efficiently.

  According to the growth assisting device described in claim 5 of the present invention, in addition to the invention described in claim 4, a plurality of recesses are formed along the longitudinal direction of the water pipe, so that in the longitudinal direction of the water pipe. A plurality of plants planted along can be accommodated in each recess, and more efficient cooling or heating can be provided.

  According to the growth assisting device according to claim 6 of the present invention, in addition to the invention according to any one of claims 1 to 5, the water pipe is formed of a corrugated pipe having flexibility. Thus, for example, a corrugated tube can be appropriately disposed along an array of plants planted so as to be bent or refracted. In addition, since the recesses are continuously formed along the longitudinal direction of the water pipe, a plurality of plants planted along the longitudinal direction of the water pipe are accommodated in the respective recesses for more efficient cooling or heating. Can provide temperature.

  According to the plant growing device according to claim 7 of the present invention, the water pipe is an elongated body having a quadrangular cross section, and is arranged at a position where at least one side of the cross section of the water pipe is close to or in contact with the plant. It is characterized by being. That is, in the plant growing device of the present invention, the water pipe formed in a quadrangular cross section is close to or in contact with the plant at the side (side surface), so that the proximity area or the contact area to the plant is relatively large and simple. With the configuration, the plant can be efficiently cooled or heated, and the plant can be grown in a more desirable temperature environment.

  According to the plant growing device of claim 8 of the present invention, the water pipe is a long body having a quadrangular cross section, and is arranged so that one side of the cross section of the water pipe is in contact with the medium surface. It is characterized by. That is, in the plant growing device of the present invention, the water pipe formed in a quadrangular cross section is in contact with the medium surface at the side (side surface), so a relatively large contact area with the medium is ensured, and the medium is prepared with a simple configuration. It can be efficiently cooled or heated. As a result, plants can be grown in a more desirable temperature environment.

  According to the plant growing device of the ninth aspect of the present invention, in addition to the invention of the seventh or eighth aspect, the water pipe is formed by a corrugated pipe having flexibility, for example, bending. Or it is possible to arrange | position a corrugated tube suitably along the arrangement | sequence of the plant planted so that it may refract. In addition, since the recesses are continuously formed along the longitudinal direction of the water pipe, a plurality of plants planted along the longitudinal direction of the water pipe are accommodated in the respective recesses for more efficient cooling or heating. Can provide temperature.

  According to the plant growing apparatus according to claim 10 of the present invention, in addition to the invention according to any one of claims 7 to 9, it is possible to more efficiently perform temperature management in strawberry growing. .

1 is a schematic perspective view of a plant growing device according to an embodiment of the present invention. The top view of the plant growing apparatus of FIG. (A) AA sectional drawing and (b) the elements on larger scale of the plant growing apparatus of FIG. BB sectional drawing of the plant growing apparatus of FIG.3 (b). The disassembled perspective view of the growth assistance apparatus which comprises the plant growing apparatus of FIG. The schematic diagram which shows the whole structure of the plant growing apparatus of one Embodiment 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. The schematic sectional drawing of the plant growing apparatus of another Example of this invention. The schematic perspective view of the plant growing apparatus of another Example of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the shape of each figure referred in the following description is a conceptual diagram or a schematic diagram for explaining a suitable shape dimension, and a dimension ratio etc. do not necessarily correspond with an actual dimension ratio. That is, the present invention is not limited to the dimensional ratio 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. And the growth assistance apparatus 100 with which this plant cultivation apparatus 10 was equipped is comprised so that the cultivation may be assisted and promoted by performing temperature control of a plant efficiently. In the present embodiment, the plant is a strawberry seedling P that is cultivated at a high place on a mount in a house environment. Generally, in house cultivation of strawberry seedlings P, it is important to cool the strawberry seedlings P in the summer when the temperature is high and warm the strawberry seedlings P in the winter when the temperature is low. In order to locally control the temperature of the strawberry seedling P, it is known that it is efficient to cool or warm the crown portion (growth point) P1 (see FIG. 4) in the vicinity of the stock intensively. ing. However, the technical idea of the present invention can also be applied to temperature management for other plants such as fruits, vegetables, and flowers and different planting environments, and the present invention is not limited to the embodiments described below. Not too long.

  FIG. 1 is a schematic perspective view of a plant growing apparatus 10 according to an embodiment of the present invention. FIG. 2 is a schematic plan view of the plant growing apparatus 10. 3A and 3B are a horizontal (AA) cross-sectional view and a partially enlarged view of the plant growing apparatus 10. FIG. 4 is a horizontal (BB) cross-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 such as a greenhouse and a medium 12 formed in the container 11 for planting strawberry seedlings 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. Moreover, the container 11 is comprised by the substantially rectangular parallelepiped shape with a long one side, and has the width direction and a longitudinal direction in planar view (refer FIG. 2). Then, the culture medium 12 is defined on the upper surface of the container 11 by filling the container 11 with the soil. In this embodiment, the width | variety of the container 11 is defined by the dimension (for example, about 0.4 m) which can arrange two strawberry seedlings P 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 floating from the ground by a gantry 13 composed of a plurality of legs (see FIG. 6). Thereby, the grower can work without bending the waist. In addition, although the container 11 of this embodiment consists of foamed resins, such as a polystyrene foam, you may be comprised with arbitrary materials, such as another hard synthetic resin and wood.

  The culture medium 12 is an area extending in the longitudinal direction with a predetermined width. As shown in FIG. 2, a plurality of strawberry seedlings P are continuously planted in the culture medium 12 at predetermined intervals along the longitudinal direction of the container 11. Two strawberry seedlings P are arranged in the vicinity of both ends in the width direction of the culture medium 12. That is, the seedling rows of the two rows of strawberry seedlings P are linearly arranged on the medium 12 of the plant growing device 10. As shown in FIGS. 3B and 4, each strawberry seedling P is planted shallowly so that the crown portion P <b> 1 is not hidden in the cultivation soil.

  The growth assistance apparatus 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 apparatus 100 directly cools or warms the crown part P1 of the strawberry seedling P and indirectly cools or warms the strawberry seedling P by cooling or warming the culture medium 12 itself. It is installed as follows. Specifically, the growth assisting apparatus 100 includes a water pipe 101 through which cold water or hot water (liquid having a temperature lower or higher than the environmental temperature) flows, and a water supply apparatus 103 for supplying the water pipe 101 with cold water or hot water. And comprising. In the present embodiment, the two water pipes 101 extend substantially linearly along the seedling row of the strawberry seedlings P, and are placed on the culture medium 12 so as to be close to or in contact with each strawberry seedling P. Has been. Each water pipe 101 is connected to a pipe 103 a of the water supply apparatus 103 via a joint portion 102. Then, cold water or hot water is supplied to the water pipe 101 through the pipe 103 a, and the liquid flows through the water pipe 101. Note that cold water or hot water means a liquid having a low temperature or a high temperature relative to the environmental temperature or the outside air temperature, and does not indicate a liquid having a specific temperature. Moreover, in this embodiment, although water is supplied inside a water flow pipe, it replaces with water and other liquids, such as oil, may be employ | adopted.

  The water conduit 101 is a flexible long body having a square cross section. More specifically, the water flow pipe 101 is composed of a rectangular corrugated flexible pipe in which concave portions 101a and convex portions 101b are alternately continued in the longitudinal direction. As shown in FIG. 3, the cross section of the water flow pipe 101 is formed in a substantially square shape. And each water flow pipe 101 is arrange | positioned on the culture medium 12 linearly along a longitudinal direction so that it may follow each seedling row | line | column of the strawberry seedling P. FIG. In the cross section of the plant growing device 10, one side of the water conduit 101 is close to or in contact with the crown portion P <b> 1 of the strawberry seedling P, and the other side of the water conduit 101 is in contact with the surface of the culture medium 12. That is, the water pipe 101 functions to cool or warm both the crown part P1 of the strawberry seedling P and the culture medium 12. Note that the term “close” refers to a state in which the water pipe and the plant are arranged at a distance that allows the cold or hot air of the water pipe that has been cooled or heated by the liquid to be transmitted to the plant that is the target of temperature adjustment. Show.

  As shown in FIG. 4, in the plan view (horizontal cross section) of the plant growing device 10, a part of the strawberry seedling P (crown portion P <b> 1) is disposed in the recessed portion 101 a of the water pipe 101. That is, the pipe wall of the water flow pipe 101 cooled or heated by water flow is close to or in contact with the crown portion P1 from three directions. Thereby, the crown part P1 can be efficiently cooled or heated. Moreover, in this embodiment, since the recessed part 101a and the convex part 101b are alternately formed continuously, the recessed part 101a which accommodates each strawberry seedling P can be selected arbitrarily. Furthermore, since the unevenness is formed on the tube wall of the water flow tube 101, the area of the tube wall that is in contact with and close to the surface of the culture medium 12 is relatively large as compared with the straight tube. Thereby, the culture medium 12 can be cooled or heated efficiently.

  In addition, the water flow pipe 101 of the present embodiment is formed of a synthetic resin such as polyethylene or vinyl chloride (but not limited to). In the present embodiment, one side of the convex portion 101b is determined to be about 1.35 times as long as one side of the concave portion 101a. Furthermore, in this embodiment, the water flow pipe 101 whose one side of the recessed part 101a is about 100 mm was employ | adopted. However, the dimensions and shape of the water pipe of 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 culture medium.

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

  FIG. 6 is a schematic diagram showing the entire system of the plant growing device 10 of the present embodiment. As shown in FIG. 6, the water supply apparatus 103 includes a pipe 103a connected to the water conduit 101 via the joint portion 102, and a circulation pump 103b to which the pipe 103a is connected. The circulation pump 103b includes a discharge port and a suction port, and an upstream side and a downstream side pipe 103a are connected to each. The discharge-side pipe 103 a is connected to the upstream end of the water conduit 101, and the suction-side pipe 103 a is connected to the downstream end of the water conduit 101. That is, the liquid sent out from the discharge port of the circulation pump 103b is passed through the pipe 103a on the discharge port side to the water pipe 101. Then, the liquid flowing out from 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 that has flowed into the circulation pump 103b is sent out from the discharge port toward the water pipe 101 again. 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 device 10 operates to circulate cold water by the circulation pump 103b. On the other hand, in winter, the plant growing device 10 operates so as to circulate hot water by the circulation pump 103b. In this embodiment, a part (horizontal part) of the water conduit 101 is buried in the ground. In general, the underground temperature is approximately constant at around 15 ° C throughout the year. The underground temperature is lower than the environmental temperature (outside temperature) in summer, and the underground temperature is lower in winter. Higher than that. Therefore, in the pipe 103a buried in the ground, in the summer, the liquid dissipates heat in the ground and becomes colder than the outside air, thereby generating cold water. On the other hand, in winter, hot water is generated by collecting liquid in the ground and becoming hotter than the outside air. That is, the plant growing apparatus 10 of this embodiment adjusts the temperature of the strawberry seedling P by generating cold water or hot water by effectively using underground heat for adjusting the water temperature.

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

  According to the plant growing device 10 and the growth assisting device 100 of the present embodiment, the water conduit 101 is a corrugated flexible tube having a quadrangular cross section, and at least one side of the quadrangular cross section of the water conduit 101 is a strawberry seedling P and It arrange | positions in the position which adjoins to the culture medium 12, or contacts. That is, since the water pipe 101 formed in a square cross section is close to or in contact with the strawberry seedling P and the culture medium 12 on the side (side surface), the strawberry is compared with the conventional technique using a round (circular cross section) water pipe. A relatively large area or contact area with the seedling P and the medium 12 can be secured. This is because a conventional water pipe having a circular cross section can only contact or closest to a strawberry seedling and a medium (in a cross section) at a point, whereas a water pipe 101 having a rectangular cross section has a side (line). This is because the strawberry seedling P and the culture medium 12 can be approached or contacted. Further, the water pipe 101 is provided with a plurality of recesses 101a that can accommodate the crown part P1 of the strawberry seedling P. By disposing the crown portion P1 in the recess 101a, the tube wall is close to or in contact with the crown portion P1 from three directions. That is, by arranging a part of the strawberry seedling P in the concave portion 101a of the water pipe 101, the proximity area and the contact area between the heated water pipe 101 and the strawberry seedling P can be further increased. Therefore, the plant growing apparatus 10 of the present embodiment can more efficiently perform direct or indirect temperature adjustment important for growing the strawberry seedling P.

[Modification]
The present invention is not limited to the above embodiment, and various modifications can be made. Hereinafter, modifications of the present invention will be described. Note that, in each modified example, components having the same last two digits in the components indicated by three digits have the same or similar features unless otherwise described, and a part of the description is omitted.

(1) In the plant growing apparatus 10 and the growth assisting apparatus 100 of the above embodiment, the tube wall of the cooled or heated water pipe 101 is brought into contact with the medium 12 at the same time as being close to or in contact with the plant (strawberry seedling P). Although arranged, the present invention is not limited to the above embodiment. For example, in the plant growing device 20 and the growth 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 and approach the strawberry seedling P. The water flow pipe 201 is a corrugated flexible pipe having a rectangular cross section, and the width is larger than the height. The plant growing device 20 and the growth assisting device 200 according to the present modification are arranged such that one side of the cross-sectional square shape of the water pipe 201 is in contact with the surface of the culture medium 22. Thereby, since the water pipe 201 formed in the cross-sectional square shape contacts the surface of the culture medium 22 at the side (side surface), 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, the temperature control of the strawberry seedling P can be performed efficiently via the culture medium 22.

(2) In the plant growing device 10 and the growth assisting device 100 of the above embodiment, the tube wall of the cooled or warmed water pipe 101 is brought into contact with the culture medium 12 at the same time or close to or in contact with the plant (strawberry seedling P). Although arranged, the present invention is not limited to the above embodiment. For example, in the plant growing device 30 and the growth assisting device 300 shown in FIG. 8, the water pipe 301 is arranged so as to be in contact with or close to the strawberry seedling P but not in contact with the culture medium 32. The water conduit 301 has the same configuration as the water conduit 101 of the embodiment, but is supported by being separated from the culture medium 32 by the legs 304. As shown in FIG. 8, the present modification can be employed when the width of the container 31 or the culture medium 32 is narrow and the water pipe 301 cannot be placed on the culture medium 32. And also in this modification, since the water pipe 301 formed in the cross-sectional square shape approaches or contacts the strawberry seedling P on the side (side surface) as in the above embodiment, the proximity area or contact to the strawberry seedling P A relatively large area can be secured. As a result, it is possible to efficiently adjust the temperature of the strawberry seedling P.

(3) In the plant growing device 10 and the growth assisting device 100 of the above embodiment, the water flow pipe 101 made of a rectangular corrugated flexible tube is employed, but the present invention is not limited to the above embodiment. For example, the water pipe may be a straight pipe having no irregularities on the outer surface as long as the cross section is rectangular. Or you may form the recessed part 401a in the water pipe 401 intentionally according to the planting position of the strawberry seedling P like the plant growing apparatus 40 and the growth auxiliary apparatus 400 shown in FIG.

(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. Alternatively, the cooled or heated liquid may be sent into the water pipe by separately providing a cooler or a heater upstream of the water pipe without using the underground heat.

(5) In the plant growing device 10 of the above-described embodiment, the plurality of strawberry seedlings P are arranged in a straight line, but the plurality of strawberry seedlings P may be randomly arranged so as to be bent or refracted. Even in such a case, the water flow pipe 101 of the growth assisting apparatus 100 according to the present embodiment follows the plurality of strawberry seedlings P by bending or bending the flexible corrugated flexible pipe. It is possible to arrange the water pipe 101.

(6) The growth assisting device of the present invention can be used in combination with other temperature control devices. 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 growth assistance apparatus 500 (similar to the growth assistance apparatus 100), the plant cultivation apparatus 50 is a temperature that assists temperature management by blowing a temperature-adjusted gas locally on the strawberry seedling P. An adjustment device 55 is provided. The temperature control device 55 includes a duct 55a having a plurality of outlets 55c so that cold air or warm air passes through the interior and spraying the cold air or warm air toward the local area of the strawberry seedling P, and the inside of the duct 55a. And a pipe 55b through which a cooling liquid or a heating liquid flows. The pipe 55b is configured to cool or heat the gas inside the duct 55a in the longitudinal direction and adjust the temperature of the gas blown out from each blowing port 55c. In the temperature adjusting device 55, a temperature difference is suppressed from being generated in the gas discharged from each outlet 55c 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 management of the strawberry seedling P can be performed more efficiently.

  The present invention is not limited to the above-described embodiments and modifications, 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 growth apparatus 11 Container 12 Medium 13 Base 100 Growth assistance apparatus 101 Water flow pipe (flexible pipe with 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 (10)

A growth assisting device for locally cooling or heating a plant planted in a medium,
One or a plurality of water pipes in which a liquid having a temperature lower or higher than the environmental temperature flows are provided.
The water supply pipe is a long body having a quadrangular cross section, and at least one side of the quadrilateral cross section of the water pipe is disposed at a position close to or in contact with the plant. A growth assisting device for locally cooling or heating a plant planted in a medium,
One or a plurality of water pipes in which a liquid having a temperature lower or higher than the environmental temperature flows are provided.
The water supply pipe is a long body having a quadrangular cross section, and is arranged so that one side of the cross section of the water pipe is in contact with the medium surface.   The growth assisting device according to claim 2, wherein the other one side of the water pipe having a quadrangular cross section is arranged so as to be close to or in contact with the plant.   The said water pipe is provided with the recessed part which arrange | positions at least one part of the said plant in an outer surface, The growth assistance apparatus as described in any one of Claim 1 to 3 characterized by the above-mentioned.   The growth assisting device according to claim 4, wherein a plurality of the recesses are formed along a longitudinal direction of the water pipe.   The said auxiliary pipe is formed with the corrugated pipe | tube which has flexibility, The growth assistance apparatus as described in any one of Claim 1 to 5 characterized by the above-mentioned. A plant growing device for locally cooling or heating plants planted in a culture medium,
A medium in which a plant is planted or a plant is planted;
A water pipe that is connected to a water supply device capable of supplying a liquid having a temperature lower or higher than an environmental temperature, and the liquid passes through the interior thereof.
The water conduit is a long body having a quadrangular cross section, and at least one side of the quadrangular cross section of the water conduit is disposed at a position close to or in contact with the plant. A plant growing device for locally cooling or heating plants planted in a culture medium,
A medium in which a plant is planted or a plant is planted;
A water pipe that is connected to a water supply device capable of supplying a liquid having a temperature lower or higher than an environmental temperature, and the liquid passes through the interior thereof.
The said water pipe is a long body which has a cross-sectional square shape, It arrange | positions so that one side of the cross-sectional square shape of the said water pipe may contact the said culture medium surface, The plant growing apparatus characterized by the above-mentioned.   The plant growing device according to claim 8 or 9, wherein the water pipe is formed of a corrugated pipe having flexibility.   The plant growing apparatus according to any one of claims 7 to 9, 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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