JP2018139541A - Cultivation device and oxygen supply body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cultivation device that can supply oxygen to the roots of a plant planted in a cultivation vessel and to provide an oxygen supply body that can supply oxygen to the roots of a plant.SOLUTION: A cultivation device 10 is a cultivation device for cultivating plants. The cultivation device 10 comprises a cultivation vessel 20 that is filled with a culture medium 30 two rows of plants 60 planted in the culture medium 30, and an oxygen supply body 40 a bottom part 42 of which is embedded in the culture medium 30 and which is provided between the two rows of plants 60. The oxygen supply body 40 is provided with through-holes 420 that connect culture medium 30 to the interior of the oxygen supply body 40 at the bottom part 42 and a supply port 46 that supplies oxygen to the interior of the oxygen supply body 40. Oxygen can be supplied to the culture medium 30 from the supply port 46 via the through-hole 420.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a cultivation apparatus for cultivating a plant and an oxygen supplier for supplying oxygen to the plant.

  Conventionally, when cultivating plants such as persimmons, leafy vegetables, flower buds, root vegetables, etc., an elevated cultivation apparatus has been used (Patent Document 1). The elevated cultivation apparatus is employed for cultivation of plants in a greenhouse, for example.

  Compared with soil cultivation that grows on the ground, the elevated cultivation apparatus can reduce the work in the middle waist and squatting posture, and thus can improve the worker's working environment. In addition, the elevated cultivation apparatus has an advantage that there is little pest damage because the ground and the plant are isolated.

  On the other hand, an elevated cultivation apparatus has a side in which a medium is placed in an elongated container and a plant is planted, so that the volume of the medium is small and it is easily affected by changes in ambient temperature.

  The elevated cultivation apparatus of Patent Document 1 proposes to provide water supply evenly by providing a concave portion for installing a water supply pipe in a cover soil cover and a water guide slope for guiding water to the culture medium. It is common in tall cultivation devices that not only water but also nutrient solution is supplied from the water supply pipe. However, there is no proposal for supplying oxygen to a medium with a small volume.

Japanese Patent Laid-Open No. 10-309133

  An object of this invention is to provide the cultivation apparatus which can supply oxygen to the culture medium around the root of the plant planted in the cultivation container. Another object of the present invention is to provide an oxygen supplier that can supply oxygen to a medium around the roots of plants.

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following aspects or application examples.

[Application Example 1]
The cultivation apparatus according to this application example is
A cultivation device for cultivating a plant,
A culture vessel filled with a medium, and plants are planted in two rows in the medium;
An oxygen supplier disposed between two rows of plants, the bottom of which is embedded in the medium;
Including
The oxygen supply body includes a through-hole communicating with the inside of the oxygen supply body and the culture medium at the bottom, and a supply port for supplying oxygen to the inside of the oxygen supply body,
Oxygen can be supplied from the supply port to the medium through the through hole.

According to the cultivation apparatus which concerns on this application example, oxygen can be supplied to the culture medium around the root of the plant planted in the cultivation container from the oxygen supply body.

[Application Example 2]
In the cultivation apparatus according to this application example,
The oxygen supply body is disposed along the longitudinal direction of the cultivation container,
The oxygen supply body includes a partition plate that partitions the interior in the longitudinal direction,
The lower end of the partition plate reaches the bottom, and oxygen supplied from the supply port can move in the longitudinal direction of the cultivation container via the medium and the inside.

  According to the cultivation apparatus concerning this application example, oxygen moves in the longitudinal direction of the cultivation container while passing through the medium from the oxygen supply body by the partition plate, and supplies oxygen to the medium around the root of the plant being cultivated. can do.

[Application Example 3]
In the cultivation apparatus according to this application example,
Further comprising a irrigation tube disposed along the longitudinal direction of the cultivation container,
The oxygen supply body has two inclined surfaces that are spaced downward on both sides of the irrigation tube,
The inclined surface is at least partially disposed in the medium,
The water in the irrigation tube can be supplied to the medium on both sides of the oxygen supplier along the inclined surface.

  According to the cultivation apparatus which concerns on this application example, the water supplied from the irrigation tube can be supplied to the culture medium on both sides with an inclined surface. Further, since there are two rows of plants in the culture medium on both sides, water is supplied so as to flow toward the roots of the two rows of plants.

[Application Example 4]
In the cultivation apparatus according to this application example,
The supply port can supply heated or cooled oxygen to the inside to adjust the temperature in the cultivation container.

  According to the cultivation apparatus which concerns on this application example, even if it is a culture medium with a small volume, it can make it hard to receive to the influence of an ambient temperature change by heating or cooling the temperature in a culture medium.

[Application Example 5]
The oxygen supplier according to this application example is
An oxygen supplier for supplying oxygen to the culture medium of the cultivation container,
A hollow body disposed along the longitudinal direction of the cultivation container;
A bottom portion provided on the lower surface of the body portion;
A supply port that opens into the barrel and feeds oxygen into the barrel;
Including
The bottom portion has a plurality of through holes,
When the oxygen supply body is installed in the culture medium, the through-hole communicates the inside of the trunk and the culture medium, and can supply oxygen from the supply port to the culture medium through the through-hole. It is characterized by being.

  According to the oxygen supply body which concerns on this application example, oxygen can be supplied to the culture medium around the root of the plant grown with the culture medium in a cultivation container.

  According to the cultivation device concerning the present invention, oxygen can be supplied to the culture medium around the root of the plant planted in the cultivation container. Moreover, according to the oxygen supply body which concerns on this invention, oxygen can be supplied to the culture medium around the root of a plant.

It is a front view of the oxygen supply body concerning one embodiment. It is AA sectional drawing of the oxygen supply body of FIG. It is a side view of the oxygen supply body concerning one embodiment. It is a bottom view of the oxygen supply body concerning one embodiment. It is CC sectional drawing in FIG. 6 of the cultivation apparatus which concerns on one Embodiment. It is BB sectional drawing of the cultivation apparatus of FIG. 10 is a front view of an oxygen supply body according to Modification 1. FIG. 10 is a front view of an oxygen supply body according to Modification 2. FIG. It is AA sectional drawing of the oxygen supply body which concerns on the modification 3. FIG. It is CC longitudinal cross-sectional view of the cultivation apparatus which concerns on the modification 4. FIG.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. The embodiments described below do not unduly limit the contents of the present invention described in the claims. In addition, not all of the configurations described below are essential constituent requirements of the present invention.

  The cultivation apparatus according to the present embodiment is a cultivation apparatus for cultivating a plant, filled with a medium, and disposed between a cultivation container in which plants are planted in two rows in the medium and two rows of plants, An oxygen supply body having a bottom portion embedded in the culture medium, the oxygen supply body having oxygen through the through hole communicating with the inside of the oxygen supply body and the culture medium in the bottom portion. A supply port that supplies oxygen to the culture medium from the supply port through the through hole.

  Moreover, the oxygen supply body according to the present embodiment is an oxygen supply body that supplies oxygen to the culture medium of the cultivation container, and includes a hollow body portion that is disposed along the longitudinal direction of the cultivation container, and the body portion. A bottom portion provided on a lower surface, and a supply port that opens into the body portion and feeds oxygen into the body portion, wherein the bottom portion has a plurality of through holes, and the through holes are formed in the oxygen supply body. Is installed in the culture medium, the inside of the trunk portion and the culture medium are communicated, and oxygen can be supplied to the culture medium from the supply port through the through hole.

1. Oxygen Supply Body The oxygen supply body 40 will be described with reference to FIGS. FIG. 1 is a front view of an oxygen supply body 40 according to an embodiment, FIG. 2 is a cross-sectional view of the oxygen supply body 40 of FIG. 1 taken along line AA, and FIG. 3 shows an oxygen supply body 40 according to an embodiment. FIG. 4 is a side view, and FIG. 4 is a bottom view of the oxygen supply body 40 according to an embodiment. Moreover, FIG. 5 is CC sectional drawing in FIG. 6 of the cultivation apparatus 10 which concerns on one Embodiment, FIG. 6 is BB sectional drawing of the cultivation apparatus 10 of FIG. In FIG. 1 and FIG. 2, the irrigation tube 50 is also illustrated in order to clarify the positional relationship of the irrigation tube 50 with respect to the oxygen supplier 40.

  As shown in FIGS. 1-6, the oxygen supply body 40 supplies oxygen to the culture medium 30 of the cultivation container 20 (FIG.5 and FIG.6) mentioned later, Comprising: The longitudinal direction of the cultivation container 20 is followed. A hollow body portion 44 to be disposed, a bottom portion 42 provided on the lower surface of the body portion 44, and a supply port 46 that opens to the body portion 44 and feeds oxygen into the body portion 44.

  The oxygen supplier 40 can be made of lightweight plastic. It may be made of metal that can be easily processed.

1-1. The trunk part 44 is a hollow body with an isosceles triangle in front view. The trunk portion 44 can fill the internal space with oxygen supplied from the supply port 46.

  The supply port 46 is an opening provided at one end 45 in the longitudinal direction of the body portion 44. The oxygen supplied from the supply port 46 can be supplied as air. The supply port 46 is connected to an oxygen supply device (not shown) provided outside the cultivation apparatus 10. Oxygen (for example, air) supplied to the supply port 46 may be supplied in a state of being pressurized to a predetermined pressure by a compressor.

  The discharge port 48 is an opening provided at the other end 45 in the longitudinal direction of the body portion 44. Oxygen supplied from the supply port 46 is discharged from the discharge port 48 through the body portion 44 through the medium 30. The discharge port 48 may suck oxygen inside the body portion 44 by connecting to a suction device (not shown).

  The body portion 44 includes a partition plate 440 that partitions the inside in the longitudinal direction. As shown by broken lines in FIGS. 3 and 4, partition plates 440 are provided at three locations in the longitudinal direction of the body portion 44 to divide the internal space of the body portion 44 into four. The number of partition plates 440 is not limited to three. Further, for example, a plurality of short oxygen supply bodies 40 may be connected without providing the partition plate 440.

1-2. Bottom The bottom 42 has a plurality of through holes 420. The through hole 420 is a slit-like elongated hole extending in the longitudinal direction of the bottom portion 42. The shape of the through hole 420 is not limited to the slit shape, and may be, for example, a circle or a mesh shape. When the oxygen supply body 40 is installed in the culture medium 30, the through-hole 420 allows the inside of the trunk portion 44 to communicate with the culture medium 30 and supply oxygen to the culture medium 30 from the supply port 46 through the through-hole 420. is there.

  Since the culture medium 30 in the cultivation container 20 has a relatively small volume, it is necessary to supply more oxygen than necessary from the oxygen supply body 40 with respect to oxygen consumption by respiration of the roots of the plant 60 in terms of plant growth. desirable. According to the oxygen supply body 40, oxygen can be supplied from the through hole 420 to the culture medium 30 around the root of the plant 60 cultivated in the culture medium 30 in the cultivation container 20.

1-3. Irrigation tube An irrigation tube 50 is disposed on the oxygen supply body 40. The irrigation tube 50 is provided separately from the oxygen supply body 40 and is disposed at a predetermined position of the cultivation container 20 at a position not shown. The irrigation tube 50 is, for example, a plastic tube.

  The irrigation tube 50 has an irrigation port 52 that supplies water (nutrient solution) to the left and right inclined surfaces 442 and 444. Water passing through the irrigation tube 50 can flow an appropriate amount of water from the irrigation port 52 to the inclined surfaces 442 and 444. The irrigation port 52 may gradually supply irrigation to the inclined surfaces 442 and 444 like drip.

1-4. Inclined Surface As shown in FIG. 1, the inclined surfaces 442 and 444 are equilateral sides of an isosceles triangle that extends downward with the portion where the irrigation tube 50 is disposed as a vertex. The inclined surfaces 442 and 444 only need to be able to guide water toward the culture medium 30 around the root of the plant 60, so that the inclined surfaces 442 and 444 may form part or all of an arcuate surface as well as a linear inclination. Good.

  The lower ends of the inclined surfaces 442 and 444 are connected to the bottom 42. Since the bottom 42 is flat, the water that has flowed along the inclined surfaces 442 and 444 permeates not from the bottom 42 side but downward from the lower ends of the inclined surfaces 442 and 444, that is, toward the vicinity of the root of the plant 60. be able to.

2. Cultivation apparatus The cultivation apparatus 10 is demonstrated using FIGS. The cultivation apparatus 10 is for cultivating the plant 60. The cultivation apparatus 10 includes a cultivation container 20 and an oxygen supply body 40.

2-1. Cultivation Container As shown in FIGS. 5 and 6, the cultivation container 20 is filled with a medium 30, and plants 60 are planted in two rows in the medium 30. By planting the plants 60 in two rows, the productivity is improved and the harvesting operation is facilitated.

  The cultivation container 20 is made of a lightweight plastic, and can be made of, for example, polystyrene foam. The cultivation container 20 is an elongated, substantially rectangular box, and a plurality of seedlings can be planted along the longitudinal direction. The upper part of the cultivation container 20 is opened, and the plant 60 grows upward.

  A drainage port 22 is provided at the lower end of the cultivation container 20, and drainage is performed from the inside of the cultivation container 20 through the drainage port 22. The cultivation container 20 can employ | adopt a commercially available thing.

  The cultivation container 20 is disposed at a position (for example, 80 cm above the ground) away from the ground by the gantry 14. Effective in improving workability and preventing pest damage.

2-2. As shown in FIGS. 5 and 6, the culture medium 30 filled in the cultivation container 20 is, for example, an inorganic medium such as rock wool, perlite, vermiculite, or diatomaceous earth, organic matter such as coconut shell, peat moss, conifer bark, and rice The medium can be used alone or mixed.

  Water is supplied to the culture medium 30 from the irrigation tube 50. The water supplied from the irrigation tube 50 may contain liquid fertilizer. This is because the material used for the medium 30 may not contain nutrients.

2-3. Irrigation Tube As shown in FIGS. 5 and 6, the irrigation tube 50 is disposed near the center of the cultivation container 20 in the width direction and along the longitudinal direction of the cultivation container 20. On both sides of the irrigation tube 50, a plurality of plants 60 are planted in two rows along the longitudinal direction.

  The irrigation tube 50 is configured such that liquid (water, liquid fertilizer, etc.) flows therein, and the liquid is supplied to the culture medium 30 from the irrigation port 52 that opens at a predetermined interval. The irrigation port 52 may be a drip type in which liquid oozes out little by little.

  The irrigation tube 50 may be made of hard plastic or may be made of a soft film-like plastic. A commercially available tube can be used as the irrigation tube 50.

2-4. Oxygen Supply Body As shown in FIGS. 5 and 6, an oxygen supply body 40 is disposed below the irrigation tube 50.

  The oxygen supply body 40 is disposed between two rows of plants 60 planted in the culture medium 30 of the cultivation container 20. The oxygen supply body 40 has at least a bottom 42 embedded in the culture medium 30. 5 and 6, the entire oxygen supply body 40 is embedded in the culture medium 30.

  As the oxygen supply body 40, the one described in the above 1 with reference to FIGS. The oxygen supply body 40 includes a through hole 420 that communicates the inside of the oxygen supply body 40 and the culture medium 30 with the bottom portion 42, and a supply port 46 that supplies oxygen to the inside of the oxygen supply body 40. The oxygen supply body 40 can supply oxygen from the supply port 46 to the culture medium 30 through the through-hole 420 (in FIG. 5, the supply of oxygen is indicated by a broken-line arrow). The gas supplied to the supply port 46 may be air.

  The volume of the culture medium 30 in the cultivation container 20 is comparatively small, and when the roots of the plant 60 grow and extend throughout the culture medium 30, a shortage of oxygen in the rhizosphere becomes a problem due to respiration of the roots. According to the cultivation apparatus 10, oxygen can be supplied from the oxygen supply body 40 to the culture medium 30 around the root of the plant 60 planted in the cultivation container 20, and oxygen shortage in the rhizosphere can be prevented.

  In addition, excessive carbon dioxide in the rhizosphere is also a problem due to root respiration. By disposing the oxygen supply body 40 so as to extend in the longitudinal direction of the cultivation container 20, together with the supply of oxygen, the carbon dioxide in the culture medium 30 can be moved downstream along with the movement of oxygen and discharged.

  The oxygen supply body 40 includes a partition plate 440 that is arranged along the longitudinal direction of the cultivation container 20 and partitions the inside in the longitudinal direction. The lower end of the partition plate 440 reaches the bottom 42, and oxygen supplied from the supply port 46 moves in the longitudinal direction of the cultivation container 20 through the culture medium 30 and the inside. Thus, oxygen is supplied to the culture medium 30 around the root of the plant 60 being cultivated by oxygen moving in the longitudinal direction of the cultivation container 20 from the oxygen supply body 40 via the culture medium 30 by the partition plate 440. can do.

  The lower end of the partition plate 440 may have a space between the bottom portion 42, for example. The movement of oxygen and carbon dioxide in the longitudinal direction of the body portion 44 can be allowed at the interval.

  The oxygen supply body 40 has a discharge port 48 at an end 45 opposite to the end 45 of the body portion 44 provided with the supply port 46. The discharge port 48 is connected to a suction device (not shown), sucks the air inside the body portion 44 and discharges it to the outside of the oxygen supply body 40. The suction of the discharge port 48 urges the oxygen supplied from the supply port 46 to the culture medium 30 to move to the discharge port 48 side through the through hole 420 of the bottom portion 42 through the culture medium 30 and the inside of the trunk portion 44.

  As shown in FIG. 6, a plurality of oxygen supply bodies 40 may be arranged side by side along the longitudinal direction of the cultivation container 20. The adjacent oxygen supply bodies 40 are connected to the supply port 46 and the discharge port 48 by, for example, a tube.

  The supply port 46 can supply heated or cooled oxygen to the inside of the trunk portion 44 to adjust the temperature in the cultivation container 20. Thereby, the influence of the ambient temperature change in the medium 30 having a small volume can be reduced. Oxygen is heated or cooled in an oxygen supply device (not shown) connected to the supply port 46.

The oxygen supply body 40 has two inclined surfaces 442 and 444 that are spaced downward on both sides of the irrigation tube 50. The inclined surfaces 442 and 444 are at least partially disposed in the culture medium 30. 5 and 6, the entire inclined surfaces 442 and 444 are embedded in the medium 30. The oxygen supply body 40 can supply water from the irrigation tube 50 to the culture medium 30 on both sides of the oxygen supply body 40 along the inclined surfaces 442 and 444. Therefore, the water supplied from the irrigation tube 50 can be supplied so as to flow toward the roots of the two rows of plants 60 by the inclined surfaces 442 and 444.

  Since the lower surfaces of the inclined surfaces 442 and 444 are connected to the bottom portion 42, water does not flow to the center side unlike an inclined surface that is reduced in diameter toward the center side of Patent Document 1. Water can be distributed directly from the ends of the inclined surfaces 442 and 444 downward, that is, to the culture medium 30 in the vicinity of the rhizosphere.

3. Modification 1
An oxygen supply body 40a according to Modification 1 will be described with reference to FIG. FIG. 7 is a front view of an oxygen supply body 40a according to the first modification. Since the basic configuration of the oxygen supply body 40a is the same as that of the oxygen supply body 40 described in the above 1, the overlapping description is omitted.

  The oxygen supply body 40 a has two drooping plates 49 that extend downward from the bottom portion 42 at both ends in the width direction of the bottom portion 42. The hanging plate 49 is a single plate-like body extending along the longitudinal direction of the oxygen supply body 40a. The hanging plate 49 may be divided into a plurality of pieces in the longitudinal direction of the oxygen supply body 40a, for example.

  The hanging plate 49 is disposed at the lower ends of the inclined surfaces 442 and 444. This is because the drooping plate 49 prevents water flowing through the inclined surfaces 442 and 444 from flowing under the bottom portion 42. As shown in FIG. 5, since the plant 60 is planted on the side of the oxygen supply body 40, water can be sufficiently supplied to the vicinity of the root of the plant 60 by the hanging plate 49.

  The hanging plate 49 is provided perpendicular to the surface of the bottom 42. The length of the drooping plate 49 from the bottom 42 can be 1 cm to 3 cm. If the length of the hanging plate 49 is 1 cm or more, it is difficult for water to flow into the bottom 42, and if it exceeds 3 cm, it is considered that the oxygen supply to the vicinity of the root and the growth of the root of the plant 60 are affected.

4). Modification 2
An oxygen supply body 40b according to Modification 2 will be described with reference to FIG. FIG. 8 is a front view of an oxygen supply body 40b according to Modification 2. The basic configuration of the oxygen supply body 40b is the same as that of the oxygen supply body 40 described in 1 above, and therefore a duplicate description is omitted.

  The oxygen supply body 40 b includes a support body 446 on the top of the body portion 44. The support body 446 is formed so as to extend upward from the top portion of the body portion 44, and has a curved portion 447 at the upper end. The irrigation tube 50 is placed on the upper surface of the bending portion 447. The shape of the bending portion 447 is not necessarily configured by a curved surface, and may be any shape that can hold the irrigation tube 50 at a predetermined position.

  By having the support body 446, the irrigation tube 50 can be reliably arranged at the center of the trunk portion 44, so that water can be evenly distributed to the inclined surfaces 442, 444.

  The curved portion 447 is provided in a range that does not block the irrigation port 52 of the irrigation tube 50. Water may be directly dropped from the irrigation port 52 onto the inclined surfaces 442 and 444, or water stored on the curved surface 447 may be dropped onto the inclined surfaces 442 and 444.

  The support body 446 is formed so as to extend upward from the top portion of the trunk portion 44, but is not limited thereto, and the curved portion 447 may be directly provided on the top portion of the trunk portion 44.

5. Modification 3
An oxygen supply body 40c according to Modification 3 will be described with reference to FIG. FIG. 9 is an AA cross-sectional view of an oxygen supply body 40c according to Modification 3. Since the basic configuration of the oxygen supply body 40c is the same as that of the oxygen supply body 40 described in the above 1, the overlapping description is omitted.

  The oxygen supply body 40 c has a valve portion 441 in the partition plate 440. The valve portion 441 includes a communication hole that connects adjacent spaces via a partition plate 440 and a valve body. The valve part 441 functions when oxygen supplied from the supply port 46 to the inside of the body part 44 is compressed and becomes a predetermined internal pressure or more, and can discharge oxygen to an adjacent space. Specifically, although the communication hole is normally closed by the valve body, when the internal pressure on the supply port 46 side exceeds a predetermined pressure, the valve body is deformed and the communication hole communicates with the adjacent space.

  The valve portion 441 can be provided on each of the partition plates 440. A commercially available check valve can be adopted as the valve portion 441.

  The valve unit 441 can not only send oxygen in the longitudinal direction of the cultivation container 20 through the culture medium 30 but also supply oxygen directly from each space partitioned by the partition plate 440 to the culture medium.

6). Modification 4
The cultivation apparatus 10a which concerns on the modification 4 is demonstrated using FIG. FIG. 10 is a C-C longitudinal sectional view of the cultivation apparatus 10a according to Modification 4. Since the basic configuration of the cultivation apparatus 10a is the same as that of the cultivation apparatus 10 described in 2 above, a duplicate description is omitted.

  The cultivation apparatus 10 a does not completely embed the oxygen supply body 40 in the medium 30, and only the bottom 42 and a part of the lower side of the inclined surfaces 442 and 444 are embedded in the medium 30. According to the cultivation apparatus 10a, the culture medium 30 can be used as a region where the roots of the plant 60 are stretched by reducing the amount of the embedded oxygen supply body 40.

  It is preferable that at least the bottom portion 42 of the oxygen supply body 40 is embedded in the culture medium 30. This is because oxygen can be directly supplied to the medium 30.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the present invention includes configurations that are substantially the same as the configurations described in the embodiments (for example, configurations that have the same functions, methods, and results, or configurations that have the same objects and effects). In addition, the invention includes a configuration in which a non-essential part of the configuration described in the embodiment is replaced. In addition, the present invention includes a configuration that exhibits the same operational effects as the configuration described in the embodiment or a configuration that can achieve the same object. In addition, the invention includes a configuration in which a known technique is added to the configuration described in the embodiment.

DESCRIPTION OF SYMBOLS 10 ... Cultivation apparatus, 10a ... Cultivation apparatus, 14 ... Mounting stand, 20 ... Cultivation container, 22 ... Drain outlet, 30 ... Medium, 40 ... Oxygen supply body, 40a ... Oxygen supply body, 40b ... Oxygen supply body, 40c ... Oxygen supply Body, 42 ... bottom, 44 ... trunk, 45 ... end, 46 ... supply port, 48 ... discharge port, 49 ... dripping plate, 50 ... irrigation tube, 52 ... irrigation port, 60 ... plant, 420 ... through-hole, 440 ... Partition plate, 441 ... Valve part, 442, 444 ... Inclined surface, 446 ... Support, 447 ... Curved part

Claims (5)

A cultivation device for cultivating a plant,
A culture vessel filled with a medium, and plants are planted in two rows in the medium;
An oxygen supplier disposed between two rows of plants, the bottom of which is embedded in the medium;
Including
The oxygen supply body includes a through-hole communicating with the inside of the oxygen supply body and the culture medium at the bottom, and a supply port for supplying oxygen to the inside of the oxygen supply body,
A cultivation apparatus characterized in that oxygen can be supplied from the supply port to the medium through the through hole. In claim 1,
The oxygen supply body is disposed along the longitudinal direction of the cultivation container,
The oxygen supply body includes a partition plate that partitions the interior in the longitudinal direction,
The lower end of the partition plate reaches the bottom, and the oxygen supplied from the supply port moves in the longitudinal direction of the cultivation container through the culture medium and the inside. In claim 1 or 2,
Further comprising a irrigation tube disposed along the longitudinal direction of the cultivation container,
The oxygen supply body has two inclined surfaces that are spaced downward on both sides of the irrigation tube,
The inclined surface is at least partially disposed in the medium,
The cultivation apparatus characterized in that water in the irrigation tube can be supplied to the culture medium on both sides of the oxygen supply body along the inclined surface. In any one of Claims 1-3,
The said supply port supplies the heated or cooled oxygen to the said inside, and adjusts the temperature in the said cultivation container, The cultivation apparatus characterized by the above-mentioned. An oxygen supplier for supplying oxygen to the culture medium of the cultivation container,
A hollow body disposed along the longitudinal direction of the cultivation container;
A bottom portion provided on the lower surface of the body portion;
A supply port that opens into the barrel and feeds oxygen into the barrel;
Including
The bottom portion has a plurality of through holes,
When the oxygen supply body is installed in the culture medium, the through-hole communicates the inside of the trunk and the culture medium, and can supply oxygen from the supply port to the culture medium through the through-hole. An oxygen supplier, characterized in that it is.

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