JPH0451131B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a plant cultivation device, and more particularly, to a plant cultivation device that can effectively utilize floor space to cultivate plants in places where the price per unit of floor space is high, such as in urban buildings. The present invention relates to a plant cultivation device.

Conventional technology To grow plants effectively, appropriate nutrients,
It requires light, carbon dioxide gas, water, temperature, humidity, etc., but it is difficult to satisfy all of these requirements. In addition, growing plants requires soil as a base for their growth, but in large cities, etc.
It is not easy to obtain cultivation space, such as land, which is the basis for plant growth, and it is especially difficult to secure land that receives sunlight necessary for plant growth. In order to solve such problems, the present applicant first focused sunlight using a lens or the like and introduced it into a light guide, and installed a plant cultivation device at any desired location through the light guide. A proposal was made to supply light energy to plants by guiding them.
He also proposed a plant cultivation device that added artificial light to the sunlight collected as described above (see, for example, Japanese Patent Application No. 119866/1983). In addition, plants use the light energy given to them to carry out photosynthetic reactions, and the nutrients produced through this photosynthesis are transferred to the trunk,
We try to transfer it to fruits, etc., but this transfer is more effective when there is no light, oxygen, or low temperature. In other words, in order to effectively grow plants, it is necessary to perform a photosynthetic reaction and transfer the nutrients generated by the photosynthetic reaction. It is preferable that the brightness and darkness of the light, that is, the bright and dark periods, be repeated at predetermined time intervals. Furthermore, when growing plants, it is better to supply light intermittently (several μs to several milliseconds) rather than continuously, that is, the photosynthetic reaction is faster than the light reaction and the dark reaction. The growth of the plant is promoted by providing strong light during the light reaction period and not or giving weak light during the dark reaction period. Also, if you move the light source device,
Compared to lighting a plant cultivation container with a fixed light source, it is possible to expand the usage range of light energy.In other words, when using a light source with the same capacity, plants can be grown over a wider area. In addition, as the light source device moves, the shaded area of the front leaves changes from time to time, effectively repeating light and dark reactions, making plant growth more effective. It can be promoted.

In addition, in order to effectively grow plants, it is necessary to provide them with appropriate nutrients, light, water, carbon dioxide gas, temperature, humidity, etc., but in order to provide carbon dioxide gas,
The plant cultivation tank needs to have a sealed structure, and if it is made into a sealed structure, carbon dioxide gas-containing air can be supplied into the plant cultivation tank. Therefore, in order to effectively cultivate plants, it is necessary to provide light and dark periods corresponding to day and night, and these periods are on the order of hours, but during the light period photosynthesis is not taking place. The dark period is the period during which plants transfer nutrients from leaves to stems to fruits; during the light period, carbon dioxide is required for photosynthetic reactions, and during the dark period, carbon dioxide is required for respiration. Therefore, it is preferable to supply carbon dioxide gas at a relatively high temperature and appropriate humidity during the light period, and to supply oxygen at a relatively low temperature during the dark period.

Purpose The present invention was made based on the above-mentioned technical background, and its first purpose is to provide an inexpensive and robust plant cultivation device that is easy to manufacture and assemble. .

Another object of the present invention is to provide a plant cultivation device that can effectively grow plants.

Still another object of the present invention is to provide a plant cultivation device that can effectively utilize a narrow floor space to cultivate plants.

Configuration FIG. 1 is an exploded view for explaining an example of a plant cultivation device used in carrying out the present invention. In the figure, 1 is a plant cultivation device, and the plant cultivation device 1 basically includes: The hexagonal cylindrical body part 10, the upper cover part 20, the plant cultivation bed part 30, etc. are combined to form an airtight structure, and the plants to be cultivated are placed inside.
Thus, the hexagonal cylindrical body part 10 has three sides A of the hexagonal cylindrical body.
Two side plates 11 and 12 consisting of a side plate 11 that integrally has a side plate 11 and a side plate 12 that integrally has three side faces B.
The flange portions 11' and 12' of the hexagonal cylinder are connected by bolts 13 or U-shaped fasteners 14, etc., making it extremely easy to manufacture and assemble the hexagonal cylinder. Moreover, the cost can be significantly reduced and the structure can be robust. That is,
The side plates 11 and 12 are made of synthetic resin such as plastic, and are easily formed by pressing the bent portions a or b while heating. The side plates 11 and 12 are preferably made of transparent plastic, and the inner or outer surfaces of all but 16 parts of the side plate 11 in the illustrated example are formed into reflective surfaces by, for example, aluminum vapor deposition. As will be described later, the light introduced into the hexagonal cylinder is reflected by the reflecting surface to effectively provide light to the plants inside the hexagonal cylinder, thereby effectively promoting the photosynthetic reaction of the plants. . In addition, the 16 parts are cut out to form a window hole, and the growth rate of the plant inside the hexagonal cylinder can be observed through the window hole part 16.
Alternatively, fruits, etc. of plants are harvested through the window hole portion 16. In addition, as mentioned above, plants can be grown more effectively by repeating the light period and the dark period at appropriate time intervals, but the light introduced into the hexagonal cylinder during the light period is Window hole part 16
The light leaks to the outside through the parts, reducing the efficiency of light usage.
Furthermore, during the dark period, external light is introduced into the hexagonal cylinder through the window hole 16, inhibiting the growth of plants. By providing a cover plate 17 that can be opened and closed freely, making the inner surface of the cover plate 17 a reflective surface, and making the cover plate 17 freely rotatable around a pin 18, opening and closing of the window hole portion 16 can be easily made. can be done. In addition, the side plates 11 and 12 of the transparent body are described above.
Although we have explained an example in which the inside or outside of the hexagonal cylinder is formed into a reflective surface by vapor deposition of aluminum, etc., the side plate of the transparent body is not processed with a reflective film as described above, and the inside of the hexagonal cylinder is made into a reflective surface. A cover plate or the like may be attached removably. In this way, plants inside the hexagonal cylinder can be observed by removing the cover plate, and in this case, the cover plate can be attached to each side. If it is attached removably, the plants inside the hexagonal cylinder can be observed from any desired location. Note that although the case where the side plates 11 and 12 constituting the hexagonal cylinder 10 are made of a transparent body has been described above, the side plates 11 and 12 do not necessarily have to be made of a transparent body, but may be made of an opaque body. It is also possible to make the inner surface of the side plate a reflective surface if it is made of an opaque material. Moreover, although the case of a hexagonal cylindrical body has been described above, the present invention is not limited to the above-mentioned embodiment, and it is also possible to construct a square cylindrical body.

The upper lid part 20 consists of a transparent upper lid part 21 and a hexagonal cylinder part 22 that is integrally attached to the lower side of the upper lid part 21, and the side plates 11 and 12 are fixed to each other by bolts or the like as described above. When the hexagonal cylindrical body part 22 and the inner periphery of the side plates 11 and 12 are connected together, the outer circumferential surface of the hexagonal cylindrical body 22 and the inner circumferential surfaces of the side plates 11 and 12 are brought into close contact to create an airtight space between them. part 22 and side plate 1
If a gasket or the like is inserted between 1 and 12, airtightness can be achieved more reliably. Further, the upper cover plate 21 is made of a transparent body as described above, and the upper cover plate 21 is formed from the upper side of the transparent plate 11.
This is to introduce light into the hexagonal cylindrical plant cultivation tank 10 through the hexagonal cylinder, and the method of introducing the light will be described later. Further, in at least one side of the hexagonal cylindrical body part 22 of the upper lid part 20, a hole 23 is bored which cooperates with the hole 19 provided in the upper part of the side plate 11 in the illustrated example of one side plate. The upper cover part 20 can be fixedly attached to the hexagonal cylinder part 10 by bolts etc. that pass through the side plate 12, so that when getting the plants inside, etc.
When removed, the upper cover part 20 is fixed to the upper part of the side plate 11. In addition, the plant cultivation bed section 30 consists of a bottom plate 31 and a hexagonal cylinder section 32 that is integrally attached to the upper part of the bottom plate 31, and the side plates 11 and 12 are fixed with bolts or fasteners, as in the case of the upper lid section. When the hexagonal cylindrical body part 32 and the side plates 11, 1 are integrally connected by a tool etc.
2 are in close contact with the inner circumferential surfaces of the hexagonal cylinder 32 to make the space between them airtight, but in this case as well, a gasket or the like is inserted between the hexagonal cylindrical body part 32 and the side plates 11 and 12, as described above. This will ensure airtightness. In this case, it is also possible to directly plant plants in the hexagonal cylinder part 32 of the plant cultivation bed part 30, or to place a single or plural plant cultivation bed containers in the hexagonal cylinder part 32. It is also possible to put the cultivated plants in and take them out, exchange them, etc. freely. Furthermore,
Instead of the above-mentioned plant cultivation bed section 30, as shown in FIG. 2, six triangular plant cultivation bed containers 40 ₁ to 40 ₆ are prepared, and these are combined into a hexagonal shape as shown. It is also possible to cover the outside with the two side plates 11 and 12 as described above, and in this way, when putting in and taking out each plant cultivation bed container, the container can be placed horizontally. It becomes possible to move the plant cultivation bed container in and out, and the plant cultivation bed container can be taken in and out without mutual interference with plants in adjacent plant cultivation bed containers. However, in this case, six plant cultivation bed containers are always required; for example, if a certain plant cultivation bed container is removed, another plant cultivation bed container is placed in place of the plant cultivation bed container, and six plant cultivation bed containers are always required. It is necessary to use them individually, thereby keeping the lower part of the plant cultivation tank airtight.
Even in the example shown in FIG. 2, airtightness can be maintained more reliably by inserting packing or the like between each container and between each container and the side plate. However, the airtightness of the plant cultivation tank is not necessarily strict, and in some cases, it may be sufficient as long as it is airtight enough to maintain the humidity inside the plant cultivation tank.
In addition, if one part of the tip of the triangular floor container is cut out as shown in Fig. 3, and six of these triangular floor containers are arranged so that the cutout is in the center, the center Since a hexagonal column-shaped space is created in this space, by placing the hexagonal column-shaped body 45 in this space and inserting a packing etc. between the notch of each floor container and the hexagonal column-shaped body 45, the airtightness in the center can be maintained. It can be held more securely. Furthermore,
It is also possible to extend this hexagonal columnar body 45 to the upper lid part 20 and support the upper lid part 20 at its upper end.Furthermore, it is possible to extend this hexagonal columnar body 45 to the upper lid part 20, and furthermore, it is possible to make this hexagonal columnar body 45 support a plant trunk, branches, etc. It is also possible to provide columns. Note that the cutout portion may be cut out in an arc shape, and a cylindrical body may be used instead of the hexagonal columnar body 45.

The example of a plant cultivation tank has been explained above.
The present invention is suitable for use when a large number of plant cultivation tanks as described above are arranged in a narrow space.

FIG. 4 is a block diagram for explaining an embodiment of the present invention, and the embodiment is _a plan view when a large number of hexagonal cylindrical plant cultivation tanks are arranged. 1 ₂ ,
1 ₃ ... is a plant cultivation tank corresponding to plant cultivation tank 1 shown in Fig. 1, but since these plant cultivation tanks are constructed in a hexagonal cylinder (the same goes for a square cylinder), as shown in the figure, , if each side is placed opposite to each other,
It can be installed most efficiently by minimizing wasted space, and is particularly effective when used in urban areas where the unit price of floor space is high. In addition, in order to observe the growth state of plants in each plant cultivation tank, it is necessary to provide a passage between the plant cultivation tanks, and in that case, the passage width A needs to be wide enough for a person to pass through, but the present invention According to , this passage width A is approximately constant everywhere and requires a minimum space, but for example,
In cases where the plant cultivation tank is composed of a cylindrical body,
Each plant cultivation tank is now indicated by a two-dot chain line, and the narrowest area is A, and the other areas are A or more, resulting in a large amount of extra space (hatched area), and the efficiency of floor space utilization is reduced. Deteriorate. In addition, as mentioned above, the plant cultivation tank has window holes (16 parts) for observing the growth state of the plants in the plant cultivation tank, caring for the plants, or harvesting the fruits. However, light enters the plant cultivation tank through the window hole 16, or light leaks from the plant cultivation tank through the window hole 16, and the light leaking through the window hole of one plant cultivation tank is transmitted to the adjacent other plant cultivation tank. Since there is a possibility that the water may be introduced into the adjacent plant cultivation tank through the window hole of the plant cultivation tank, it is necessary to arrange the adjacent plant cultivation tanks so that the window hole parts do not face each other. For example, in the adjacent plant cultivation tanks 1 ₁ and 1 ₂ , the plant cultivation tank 1 ₁ has a window hole portion on the side surface 1 ₁ a, and the plant cultivation tank 1 ₂ has a window hole portion on the side surface 1 1 a of the plant cultivation tank 1 ₁ . Side 1
₁ A, and if plant cultivation tank _{1 1 is} in the light period and plant cultivation tank 1 ₂ is in the dark period, the window hole of both plant cultivation tanks When the tank is open, light leaking through the window hole of the plant cultivation tank 1 ₁ is introduced into the plant cultivation tank 1 ₂ through the window hole of the plant cultivation tank 1 2 , and the light is introduced into the plant cultivation tank 1 ₂ during the dark period. Provide light to the plants in tank 1 ₂ , and grow the plants in tank 1 ₂ .
In order to avoid such obstacles, the window hole portion of the plant cultivation tank 1 ₁ or 1 ₂ should be provided on a surface other than the side surface, so that the window hole portions do not face each other. It is best to arrange it like this.

FIG. 5 is a diagram for explaining an example of a light source device for supplying light energy for photosynthesis to the plants in the plant cultivation tank, and the light source device 50 is a light source (light bulb) for generating artificial light. ) 51 and a light guide 52 to which sunlight collected by a sunlight collecting device (not shown) is transmitted.
The unillustrated end of 2 is positioned at the focal point of a lens for focusing sunlight, as has been variously proposed by the applicant, and the sunlight focused by the lens enters the light guide 52. The light is introduced, propagates through the light guide 52, and is emitted from the end 52a. As mentioned above, when growing plants, it is better to supply light intermittently than by continuously supplying light to the plant, which promotes growth. In this case, as the light source device moves, the shaded portion of the front leaf changes from time to time, effectively repeating light and dark reactions. In addition, as mentioned above, repeating light and dark periods can promote plant growth, and for this purpose it is necessary to use two light sources.
It is recommended to switch between two plant cultivation tanks. Therefore, when a single light source device is switched between plant cultivation tanks 1 ₁ and 1 ₂ , for example, the light source device is moved above the plant cultivation tank 1 ₁ for a certain predetermined period of time, and then Provide light to the plants in plant cultivation tank 1 ₁ , while not providing light to the plants in plant cultivation tank 1 ₂ , and after the predetermined time has elapsed, place the light source device on the plant cultivation tank 1 ₂ . The light source device is moved to the plant cultivation tank 1 ₂ to provide light for a predetermined period of time to the plants in the plant cultivation tank 1 2 , and the above switching is repeated thereafter. At that time, the light source device is switched to the plant cultivation tank 1 ₁ or 1 2. By effectively providing light and dark reactions to plants within ₂ , it is possible to promote plant growth more effectively. Although sunlight is suitable for growing plants, sunlight cannot be used at night or on cloudy days, so in order to effectively promote plant growth, it is necessary to use a combination of artificial light sources. This is better, and the applicant has already made various proposals regarding this point.

FIG _. 6 is a diagram showing an example of a light source device suitable for use when a large number of plant cultivation tanks as described above are arranged.
0 ₂ , 50 ₃ (respectively the light source device 5 shown in FIG.
0), and these form a single arm 6
0, and each light source section 5
0 ₁ to 50 ₃ are disposed, for example, on a single plant cultivation tank, and are configured to be vibrated or swung around an axis 61, for example. The arm 60 is rotatably attached around a shaft 61, and when the shaft 61 is placed at point P in FIG. It can be used by switching between plant cultivation tanks 1 ₁ , 1 ₂ , and 1 ₃ .
When placed at point Q, it can be switched between 1 ₁ and 1 ₂ by rotating 180°; for example, after giving light to the plants in the plant cultivation tank 1 ₁ for a predetermined period of time. , when the shaft 61 is rotated by 120° or 180°, light is no longer applied to the plant cultivation tank 1 ₁ that was previously provided with light, and the light source units 50 1 to 50 ₁ are newly provided with light.
Located at the bottom of 50 ₃ . Light is supplied to the plant cultivation tank ₁₂ , and this switching is performed between the plant cultivation tanks ₁₁ , ₁₂ , and ₁₃ when the axis 61 is at point P, and between 11 and ₁₁ when it is at point Q. 1 ₂ is repeated at predetermined time intervals. In addition, although the case where the light source device is rotated and used commonly among a plurality of plant cultivation devices has been described above, the light source device is rotated over a plurality of plant tanks in order, for example, 1 ₁ , 1 ₂ , 1 ₃ , etc. It is easy to understand that it is also possible to travel as 1 ₆ ....

Although the case where the light source device is configured by the artificial light source lamp and the light output end of the light guide has been described above, it is also possible to configure the light source device by only the light output end of the light guide.

FIG. 7 is a diagram of a light source device configured using only the light output end of the light guide, in which figure a is a side view and figure b is an end view. 72 is a light guide through which artificial light is transmitted, and the light source device 70 is constructed by combining these light guides 71 and 72. As is well known, the light guide 71 The unillustrated end of the light guide 72 is arranged at the focal point of a lens for concentrating sunlight so that the sunlight focused by the lens is introduced, and the unillustrated end of the light guide 72 focuses light from an artificial light source lamp. Artificial light arranged at the focal point of a lens and focused by the lens is introduced, and the sunlight and artificial light thus introduced into the light pipes are propagated through the respective light pipes 71 and 72. and the respective ends 71a, 72
released from a. Although Fig. 7 shows an example in which sunlight and artificial light are emitted from separate light guides, it is possible to combine the sunlight and artificial light introduced into each light guide as described above. into a single light pipe and propagating through the single light pipe;
It is also possible to emit light from the end of the single light guide, and even in the case where the light source device is constituted by only the light output end of the light guide in this way, it is possible to emit light from the end of the single light guide. It is also possible to move, vibrate or rock the light source device in the same manner as in the embodiment described above, but in addition, when a light guide is used, the light can be switched as described below. It is also possible to easily perform blinking, and the efficiency of light use can be further improved.

FIGS. 8 and 9 are diagrams for explaining an example of the case where the light propagated through the light guide as described above is used, which has already been proposed by the present applicant (particularly (Refer to Japanese Patent No. 17238/1983), by using this, it is possible to easily perform flashing of light, and it is possible to efficiently promote the light and dark reactions of plants. That is, in FIGS. 8 and 9, 80 is a light guide through which sunlight and/or artificial light is propagated, 81 is a transparent rotating rod,
The light emitting end R of the light guide 80 is arranged opposite to the rotation center S of the rotating rod. Further, a reflecting mirror 82 is disposed at the rotation center S of the rotating rod 80 so as to face the light emitting end R of the light guide 80, and the light introduced from the light guide 80 to the rotating rod 81 is reflected by the mirror 82. The light is reflected by the mirror 82 and propagated toward the tip of the rotating rod 81, where it is further reflected by the reflecting mirror 83 provided at the tip and is emitted from the rotating rod 81. Side T
It is released to the outside through. 84 is rotating rod 8
A large number of light guides 84 are arranged facing the light emitting surface T of the rotating rod, and the light receiving end faces of the light guides 84 are shown in FIG. 9 facing the light emitting surface T of the rotating rod. They are arranged in a circle. Therefore, when the rotary rod 81 is rotated by the motor 85, the light receiving surface of the light guide 84 facing the light emitting surface T of the rotary rod 81 changes sequentially in opposition to the rotation of the rotary rod 81, and each light guide 84 Light is momentarily supplied once each time the rotary rod 81 rotates, thereby causing the light from the light guide rod 84 to flicker. Therefore, when the end of each light guide 84 is guided to a plant cultivation tank as described above and supplied to the plants in the plant cultivation tank,
Photosynthesis, that is, light and dark reactions of the plants are effectively carried out.

FIG. 10 is a schematic diagram showing an example of an optical switch for turning on and off the light propagated in the light guide, which has also been proposed by the applicant. For example, the light propagated within the light guide can be effectively switched as described above, and thereby the light propagated within the light guide can be switched and supplied to two plant cultivation tanks. This makes it possible to easily provide the aforementioned light and dark periods.

In FIG. 10, 90 is a light guide, 91 is a transparent plate that can be inserted and removed in a direction across the light guide 90, and sunlight is propagated into the light guide 90 as described above. Here, now the transparent plate 91 is the light guide 90
If the light guide 90 is not inserted into the light guide 90, the light propagated in the direction of arrow A within the light guide 90
It is reflected by the end face 93 of the insertion/removal hole 92 of the transparent plate 91 provided at
When the light is inserted, the light travels in the C direction through the transparent plate 91, is reflected at the end 94 of the light guide 90, and travels in the E direction. Therefore, the light from the insertion/removal hole 92 is supplied to, for example, the plant cultivation tank 1 ₁ and the light guide end 9
If the light from 4 is supplied to the plant cultivation tank 1 ₂ , by inserting and removing the transparent plate 91 , the light that propagates inside the light guide 90 can be supplied to the plant cultivation tank 1 _{1 .}
If the switching is performed at predetermined time intervals, the plants in the plant cultivation tanks _{1 1} and 1 ₂ can be effectively given a light period and a dark period. Additionally, if you supply carbon dioxide at a relatively high temperature and appropriate humidity during the light period, and supply oxygen (air) at a relatively low temperature during the dark period, plant growth will be further promoted. As mentioned above, if carbon dioxide is exchanged between the two plant cultivation tanks according to the light period and dark period, the utilization efficiency of carbon dioxide can be improved, so it is possible to move the light source device. Alternatively, the piping system may be configured to move carbon dioxide gas in synchronization with the switching.

Although various embodiments of the present invention have been described above, the present invention is not limited to the above embodiments. For example, the light source device may be used in various combinations of artificial light and sunlight other than those described above. It is easy to understand that this is possible.

Effects As is clear from the above explanation, according to the present invention, the upper cover plate is made transparent and the light source for photosynthesis is supplied from the outside of the plant cultivation tank device.
In cases where an artificial light source is used as a part of the light source, it becomes possible to arrange the artificial light source on the side of the plant cultivation device, and it is possible to reliably maintain airtightness inside the plant cultivation device. can easily adjust the temperature inside the plant cultivation device to the desired temperature (if an artificial light source is installed inside the plant cultivation device,
The heat treatment is difficult). Further, it is possible to provide a plant cultivation device that can effectively grow plants by effectively utilizing a narrow floor space.

[Brief explanation of the drawing]

FIG. 1 is an exploded configuration diagram for explaining an example of a plant cultivation tank used in the practice of the present invention, and FIGS. 2 and 3 respectively show plant cultivation bed containers suitable for use in the practice of the present invention. FIG. 4 is a diagram showing an example of
FIGS. 5 to 7 are configuration diagrams for explaining an embodiment of the present invention, a plan view when a large number of plant cultivation tanks are arranged, and FIGS. 5 to 7 are diagrams showing embodiments of a light source device,
8 and 9 are diagrams for explaining an example of a light blinking mechanism, and FIG. 10 is a diagram for explaining an example of a light switch mechanism. 1,1 ₁ ,1 ₂ ~1n...Plant cultivation tank, 10,1
0 ₁ to 10n...Hexagonal cylinder body part, 11, 12... Side plate, 20... Upper lid part, 30... Plant cultivation bed part, 4
0 ₁ ~ 40 ₆ ... Plant cultivation bed container, 50,50 ₁ ~
50 ₃ ... light source device, 60 ... arm, 61 ...
Rotating shaft, 71, 72, 80, 84, 90... light guide.

Claims (1)

[Scope of Claims] 1. A transparent square cylinder or hexagonal cylinder, an upper cover plate that covers the upper part of the square cylinder or hexagonal cylinder, and the square cylinder or hexagonal cylinder is placed on it. Plant cultivation comprising a plant cultivation bed container, the square cylinder or hexagonal cylinder is constructed by joining two side plates of the same structure with integrated side surfaces, and the upper cover plate is constructed of a transparent body. having a plurality of tanks, comprising a light source device on the top of the plant cultivation tank for supplying light into the plant cultivation tank, the light source device being configured to be movable between at least two plant cultivation tanks; A plant cultivation device characterized in that it is configured to be commonly used in a plurality of plant cultivation tanks. 2. Claim 1, wherein the side plate is configured as a reflective surface, and has one or more window holes on the side surface of the square cylinder or hexagonal cylinder.
The plant cultivation device described in section. 3. Claim 2, wherein the plurality of plant cultivation tanks are arranged so that the side surfaces having the window holes do not face each other between the plant cultivation tanks.
The plant cultivation device described in section. 4. The plant cultivation device according to any one of claims 1 to 3, wherein the light source device is movably attached. 5. The plant cultivation device according to any one of claims 1 to 4, wherein the light from the light source device is blinked. 6. Plant cultivation according to any one of claims 1 to 5, wherein the light source device comprises an artificial light source lamp and a light output end of a light guide through which sunlight is propagated. Device. 7. Claims 1 to 7, characterized in that the light source device comprises a light output end of a light guide through which light from an artificial light source is propagated, and a light output end of a light guide through which sunlight is propagated. The plant cultivation device according to any one of Item 5.