JP2019058167A - Plant cultivation device, plant cultivation method, and plant cultivation vessel - Google Patents

Abstract

To provide a hydroponic device, a plant cultivation method and a plant cultivation vessel by which hydroponic can be easily enjoyed.SOLUTION: A plant cultivation vessel has: a first container which has a first bottom, a first sidewall and a first opening which opens in an upper direction, and in which a plurality of first through-holes are formed on the first sidewall; and a second container which has a second bottom, a second sidewall and a second opening which opens upward and is larger than the first opening, in which a plurality of second through-holes are formed on the second sidewall, and which houses the first container inside the vessel. The first container occupies 10 to 70% of an area region inside the second opening when seen from above.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a plant cultivator for growing a target plant, a plant cultivation method, and a plant cultivation container.

  Hydroponics and soil culture of plants that can be easily enjoyed not only outdoors but also indoors such as in a residence or office are attracting attention. The plants in hydroponic culture and soil culture can be used as interiors in houses, and there is also a way of enjoying using the plants after cultivation as food.

  When plant cultivation is performed using a container etc., adjustment of the amount of water in the container is important. For example, as a container for hydroponic cultivation, a container in which an overflow hole for adjusting the amount of water is formed on the side has been proposed.

Unexamined-Japanese-Patent No. 2004-357585

  However, since the roots of the target plants to be subjected to the hydroponic culture grow as the plants grow, the conventional container that holds water up to the overflow holes causes a problem that the amount of water becomes excessive at the late growth stage.

  The present invention has been made to solve such problems, and provides a plant cultivating apparatus, a plant cultivating method, and a plant cultivating container that can enjoy plant cultivation easily.

A plant cultivator according to the present invention has a first bottom, a first side wall, and a first opening that opens upward, and a plurality of first through holes are formed in the first side wall. The first container,
A second bottom portion, a second side wall, and a second opening that is open upward and larger than the first opening, and a plurality of second through holes are formed in the second side wall, A second container containing the first container inside;
A first medium material provided inside the first container;
It is provided inside the second container and outside the first container so that it can be viewed from above through the gap between the outer peripheral edge of the first opening and the inner peripheral edge of the second opening. And a second medium particle having a particle size larger than the opening diameter of the through hole.

  The plant cultivator according to the present invention is a double structure of the first container and the second container, and through holes are formed in both the side surface of the first container and the side surface of the second container, so both penetrations By discharging excess water from the pores, it is possible to easily maintain an appropriate amount of water at any time, regardless of whether the target plant is in the early growth stage or in the late growth stage. It is. In addition, since a plurality of first through holes and second through holes are formed, fresh air can be supplied to the root of the target plant. In addition, since the second culture medium particles can be visually recognized from the gap between the outer peripheral edge of the first opening and the inner peripheral edge of the second opening, air also flows in and out from this gap to the root of the target plant. It is possible to supply fresh air. Furthermore, water can be evenly supplied from above to the region where the first medium particles and the second medium particles are present through the gap.

A plant cultivation method according to the present invention includes a first bottom, a first side wall, and a first opening that opens upward, and a plurality of first through holes are formed in the first side wall. Providing a first culture medium material inside the first container;
A first rearing step in which a root of a target plant is grown in an area provided with the first medium material in the first container;
After the start of the first growth step, it has a second bottom, a second side wall, and a second opening that opens upward and is larger than the first opening, and a plurality of second side walls are provided. A second through hole is formed, and the particle diameter is larger than the diameter of the opening of the second through hole, inside the second container that accommodates the first container inside, and outside the first container. Providing second culture medium particles so as to be visible from above through a gap between the outer peripheral edge of the first opening and the inner peripheral edge of the second opening;
And a second growing step in which a root of the target plant exposed to the outside of the first container through the first through hole grows in a region where the second medium particles are provided.

  According to the plant cultivation method of the present invention, since the second culture medium particles and the second container are not required at the start of the first growth step, the growth can be carried out in a narrow space, and the amount of culture medium material used is also suppressed. Can. Also, until the second medium particles are provided, the area of the first medium particles is kept in a state where it is more easily exposed to fresh air. Further, in the second growing step, since the roots exposed to the outside of the first container through the first through holes grow on the second medium particles, it is appropriate that the target plant is not transferred depending on the growth stage. It is possible to grow the target plant while supplying water. In addition, by forming the first through hole and the second through hole, it is possible to easily maintain an appropriate amount of water at any growth stage, and the first through hole and the second through hole. Since it is formed in plurality, it is possible to supply fresh air to the root of the target plant. Furthermore, since the second culture medium particles can be visually recognized from the gap between the outer peripheral edge of the first opening and the inner peripheral surface of the second opening, air and water also enter and exit from this gap, The roots can be supplied with fresh air and water.

Moreover, the plant cultivation container which concerns on this invention has a 1st bottom part, a 1st side wall, and the 1st opening opened upwards, A some 1st through-hole is formed in the said 1st side wall. The first container to be
A second bottom portion, a second side wall, and a second opening that is open upward and larger than the first opening, and a plurality of second through holes are formed in the second side wall, And a second container internally containing the first container,
When viewed from above the second container containing the first container with the opening direction aligned, the first container occupies an area of 10 to 70% inside the second opening.

  In the plant cultivation container according to the present invention, the second container accommodates the first container to form a double structure, and through holes are formed on both the side surface of the first container and the side surface of the second container. Therefore, by discharging excess water from both through-holes, an appropriate amount of water can be obtained at any growth stage, whether the target plant is in the early growth stage or in the late growth stage. It is easy to keep. In addition, since a plurality of first through holes and second through holes are formed, fresh air can be supplied to the root of the target plant. In addition, when the second container containing the first container is viewed from the upper side, the first container occupies an area of 10 to 70% in the inside of the second opening, so that the first container and the second container It is possible to supply fresh air to the root of the target plant by air coming in and out from the middle. Furthermore, water can be evenly supplied from above through the gap to the area where the first medium particles and the second medium particles are present.

  Also, for example, the first bottom portion of the first container and the second bottom portion of the second container are connected, and the first container is supported in a state of being separated from the second container by a predetermined distance. May have a supporting portion.

  Since such a plant cultivation container is connected to the first container and the second container, there is no concern that the first container may be displaced even if the whole is inclined, and it is easy to move the plant cultivation container. is there. Moreover, since the support part has connected the 1st container and the 2nd container by bottom parts, it does not become obstacles, such as watering from the upper direction, installation of a 2nd culture medium particle, etc. In addition, such a support does not inhibit the flow of air from the second opening.

  In addition, for example, the first container may be supported by the second container via second medium particles provided inside the second container and outside the first container.

  Such a plant cultivation container is simple in structure and easy to manufacture. Further, since the plurality of first containers and the plurality of second containers can be stacked when not in use, they can be placed in a narrow storage space.

  Also, for example, the first container and the second container may be made of a transmissive material that transmits visible light.

  Such a container makes it possible to easily visually recognize the growth state of the roots of the target plant and the amount of water in the container, so it is possible to prevent the oversupply and undersupply of water.

  Further, through holes may not be formed in the first bottom portion and the second bottom portion.

  Since the first and second containers can hold water for a longer time by forming no through holes at the bottom, they have the effect of reducing the frequency of watering and preventing the insufficient supply of water. .

  At least a portion of the second through hole is formed below the first bottom of the first container.

  By forming the second through hole below the first bottom, excessive supply of water can be suitably prevented.

FIG. 1 is a schematic perspective view showing a hydroponic cultivation container according to an embodiment of the present invention. FIG. 2 is a schematic side view of the hydroponic cultivation container shown in FIG. FIG. 3 is a schematic top view of the hydroponic cultivation container shown in FIG. FIG. 4 is a first conceptual diagram showing the water culture method of the present invention. FIG. 5 is a second conceptual diagram showing the hydroponic cultivation method of the present invention. FIG. 6 is a third conceptual diagram showing the water culture method of the present invention. FIG. 7 is a schematic perspective view showing a hydroponic cultivation container according to a second embodiment of the present invention. FIG. 8 is a fourth conceptual diagram showing the hydroponic cultivation method of the present invention. FIG. 9 is a fifth conceptual diagram showing the hydroponic cultivation method of the present invention. FIG. 10 is a schematic exploded view showing a hydroponic cultivation container according to a third embodiment of the present invention.

  FIG. 1 is a schematic perspective view showing a hydroponic cultivation container 20 according to an embodiment of the present invention. The hydroponic cultivation container 20 has an external shape like a wine glass in which a stem and a base are connected to the lower part of the main body of the container. However, the shape of the hydroponic cultivation container 20 is not limited to this. As understood from the contents of the specification and the claims, in the description of the present invention, the wording "hydroponic culture" means an artificial solid medium, for example, an inorganic artificial granular material, unless otherwise noted. It is the meaning including the hydroponic culture which uses a culture medium etc.

  As shown in FIG. 1, the hydroponic cultivation container 20 has a first container 30, a second container 40, a support 50, and a lower support 54. The first container 30 and the second container 40 constituting the main body portion of the hydroponic cultivation container 20 have a double nested structure, and the first container 30 is accommodated inside the second container 40 .

  As shown in FIG. 1, the first container 30 is accommodated inside the second container 40 and smaller than the second container 40. The first container 30 has a first bottom 32 which is the bottom of the container, a first side wall 34 which is a side wall, and a first opening 36 which opens upward. The first container 30 has an inverted truncated cone shape in which the inner diameter of the first side wall 34 gradually expands from the first bottom 32 toward the first opening 36. However, the shape of the first container 30 is not limited to this, and may be another shape such as a polygonal prism shape such as a cube or a rectangular solid, an inverted cone shape, a cylindrical shape, or a prism shape.

  As shown in FIGS. 1 and 2, the first side wall 34 is formed with first through holes 34a and 34b which are a plurality of through holes. As shown in FIG. 2, the first through hole 34 a is formed near the central position in the height direction of the first container 30, and the first through hole 34 b is formed of the first bottom portion 32 from the first through hole 34 a. It is formed nearby. The first through holes 34 a and 34 b are formed at eight places at substantially equal intervals along the circumferential direction of the first side wall 34. Assuming that the length in the height direction of the first container 30 is L1, the height L2 of the first through hole 34a (the center of the through hole) from the first bottom 32 is about 0.4 L1 to 0.7 L1, the first through The height L3 of the hole 34b from the first bottom 32 is about 0.15 L1 to 0.35 L1, but is not particularly limited.

  The diameter L4 of the first bottom 32 of the first container 30 is about 0.9 to 1.1 L1, and the diameter L5 of the first opening 36 of the first container 30 is about 1.0 to 1.2 L1. Can. Moreover, although length L 1 of the height direction of the 1st container 30 can be suitably adjusted according to the planting number of the object plant of hydroponic cultivation, and the seedling (plant) grown by a container, for example, 3-7 cm The degree can be. However, the values and ranges of these L1 to L5 are merely an example, and the first container 30 may have dimensions outside the ranges shown in FIG. 2 and the like.

  The first through holes 34a and 34b are formed at 45 ° intervals in the circumferential direction, but the number and the formation intervals of the first through holes 34a and 34b are not particularly limited as long as they are plural. The first through holes 34a and 34b have a substantially circular opening shape, and the diameter D1, which is the opening diameter, is smaller than the particle diameter of the first culture medium particles 58 shown in FIG. can do.

  Preferably, no through hole is formed in the first bottom portion 32. As a result, in the region from the first bottom 32 to the first through hole 34 b in the interior of the first container 30, the liquid such as water can be held to an extent not excessive. Further, as shown in FIG. 2, at least one of the first through holes 34 a and 34 b is in the height direction of the first container 30 so that water is not excessively held inside the first container 30. Preferably, it is formed below the central position of.

  As shown in FIG. 1, the second container 40 accommodates the second container 40 therein and is larger than the second container 40. Although the second container 40 and the first container 30 have a substantially similar relationship, the second container 40 may have a size that can accommodate the first container 30, and is different from the first container 30. It may have a shape.

  The second container 40 has a second bottom 42 which is the bottom of the container, a second side wall 44 which is a side wall, and a second opening 46 which opens upward. Similar to the first container 30, the second container 40 has an inverted truncated cone shape in which the inner diameter of the second side wall 44 gradually increases from the second bottom 42 toward the second opening 46. As shown in FIGS. 1 and 2, the second side wall 44 is formed with second through holes 44 a and 44 b which are a plurality of through holes. As shown in FIG. 2, the second through hole 44 a is formed near the central position in the height direction of the second container 40, and the second through hole 44 b is formed of the second bottom portion 42 from the second through hole 44 a. It is formed nearby. The second through holes 44 a and 44 b are formed at eight positions at substantially equal intervals along the circumferential direction of the second side wall 44.

  As shown in FIG. 2, the relationship between the heights T2 and T3 of the second through holes 44a and 44b from the second bottom 42 and the dimension T1 in the height direction is the heights L2 and L3 and the heights of the first container 30. It is similar to the relationship of the dimension L1 in the longitudinal direction. The same applies to the diameter T4 of the second bottom portion 42 of the second container 40 and the diameter T5 of the second opening 46. The dimension T1 in the height direction of the second container 40 is not particularly limited, but may be about 1.5 to 2.5 times the dimension L1 in the height direction of the first container 30, for example, It can be about 6 to 15 cm.

  The first container 30 and the second container 40 may be in the shape of an inverted truncated cone, may be in the shape of a straight cylinder, and are not particularly limited. The diameters L4, L5, T4, and T5 of the first container 30 and the second container 40 may be changed according to the plant to be cultivated, and one example is as follows. That is, the inside diameters L4 and L5 of the first container 30, which is a nested container, are preferably sized appropriately for the size of the stem of the plant to be grown, and the diameter of the second container 40, which is an outer container. For T4 and T5, it is desirable to take a space that allows the roots of the plants to be grown to grow sufficiently. For example, in the case where the diameters L4 and L5 of the first container 30 defining the inner side are 2 to 3 cm, the diameters T4 and T5 of the second container 40 defining the outer frame are 10 cm if the plant has less root tension The degree is good. In the case of a large plant, it is desirable to take about 10 cm in diameter L4 and L5 inside the first container 30, and to take 30 cm or more in diameter T4 and T5 of the second container 40 which is the outer container. In addition, when there is a space in the place of placement, the difference in diameter between the inside (the first container 30) and the outside (the second container 40) is suppressed, and the height of the containers 30, 40 is extended by that amount. It is desirable to take a size that can extend sufficiently downward.

  Similar to the first through holes 34a and 34b, the second through holes 44a and 44b are formed at intervals of 45 ° in the circumferential direction, but the number and distance of formation of the second through holes 44a and 44b are plural. There is no particular limitation as long as it is. The second through holes 44a and 44b have a substantially circular opening shape, and the diameter D2, which is the opening diameter, is smaller than the particle diameter of the second culture medium particle 68 shown in FIG. can do.

  Preferably, no through hole is formed in the second bottom portion 42. As a result, in the region from the second bottom portion 42 to the second through hole 44 b inside the second container 40, the liquid such as water can be held to an extent not excessive. Note that at least a part of the second through holes 44 a and 44 b is formed below the central position in the height direction of the second container 40 so that water is not retained excessively in the second container 40. Is preferred. Moreover, it is preferable that at least one part of 2nd through-hole 44a, 44b is formed below the 1st bottom part 32 of the 1st container 30 for the same reason.

  As shown in FIG. 1, the support portion 50 is provided inside the second container 40 and outside the first container 30, and the first bottom 32 of the first container 30 and the second bottom of the second container 40 are provided. 2. Connect the bottom 42 The support portion 50 has a columnar outer shape, and supports the first container 30 with respect to the second container 40 with a predetermined space T6 in the height direction. The predetermined interval T6 formed by the support portion 50 can be about 0.2 to 0.4 T1 in relation to the dimension T1 in the height direction of the second container 40, but as shown in FIG. There is no particular limitation on the distance between the first bottom 32 and the second bottom 42 as long as the second medium particles 68 can be placed.

  Although the material of the first container 30 and the second container 40 shown in FIG. 1 is not particularly limited, bioplastics and other plastics, glass, paper for containers, pottery and the like can be mentioned. Moreover, it is preferable that the 1st container 30 and the 2nd container 40 are comprised with the permeable material which permeate | transmits visible light. By making the first container 30 and the second container 40 of a permeable material, it is possible to easily observe the growth state and the like of the root of the target plant. Moreover, it is also preferable to make the 1st container 30 and the 2nd container 40 into the material (For example, paper, unglazed pottery, etc.) which raw material itself has air permeability.

  FIG. 3 is a top view of the hydroponic cultivation container 20 shown in FIG. 1 as viewed from above. The first container 30 is accommodated in the second container 40 with the opening direction aligned such that both the first opening 36 and the second opening 46 face upward. As shown in FIG. 3, when the second container 40 is viewed from above, the first container 30 occupies an area of preferably 10 to 70%, more preferably 10 to 50% inside the second opening 46. More preferably, a wide gap is formed between the inner peripheral edge 46 b of the second opening 46 and the outer peripheral edge 36 a of the first opening 36.

  FIG. 6 shows a hydroponic cultivation container 10 configured by providing the first culture medium particles 35 and the second culture medium particles 68 in the hydroponic cultivation container 20 shown in FIG. 1. As shown in FIG. 5, the first medium particles 58 are provided inside the first container 30, and the second medium particles 68 are provided inside the second container 40 and outside the first container 30.

  The first medium particle 58 as the first medium material is not particularly limited as long as it has appropriate water retention and fertilization properties, and, for example, vermiculite, perlite, zeolite, charcoal, ceramics, foam brick, bamboo and the like Wood chips or powders, mixtures thereof and the like can be used. The first medium particle 58 contains trace elements such as copper, zinc and molybdenum, components necessary for growth of plants such as calcium, magnesium and phosphorus, and components having a sterilizing / cleaning effect such as copper and charcoal. It may be The first culture medium particle 58 has a particle diameter larger than the diameter D1 (see FIG. 4) of the first through holes 34a, 34b, and from the inside of the first container 30 via the first through holes 34a, 34b. Even when water flows out, the first medium particles 58 do not flow out of the first container 30 and stay inside the first container 30. In the first container 30, in addition to or in place of the first medium particles 58, other medium materials such as sponge and rock wool, and other non-water holding particles, solid fertilizer, etc. Particles or powder may be provided.

  Similar to the first medium particle 58, the second medium particle 68 shown in FIG. The second medium particle 68 has a particle diameter larger than the diameter D2 of the second through holes 44a and 44b, and when water flows out from the inside of the second container 40 through the second through holes 44a and 44b. Also, the second medium particles 68 do not flow out from the inside of the second container 40 and stay inside the second container 40. The material, component and particle size of the second medium particle 68 may be the same as or different from that of the first medium particle 58. In addition to the second medium particles 68, non-water-retaining particles, other particles such as solid fertilizer, or other particles may be provided inside the second container 40 and outside the first container 30. Good.

  As can be understood from FIG. 6, the second medium particles 68 of the hydroponic cultivator 10 can be viewed from above through the gap between the outer peripheral edge 36 a of the first opening 36 and the inner peripheral edge 46 b of the second opening 46. Provided in Thereby, the second medium particles 68 can contact fresh air through the gap between the outer peripheral edge 36a and the inner peripheral edge 46b, and also in the water culture container 20 even when watering. The provided first medium particles 58 and second medium particles 68 can be uniformly replenished with water.

  As shown in FIG. 1, the lower support portion 54 of the hydroponic culture container 20 has a stem extending downward from the center of the second bottom portion 42 of the second container 40 and a disk-like base connected to the lower end of the stem. ing. The lower support portion 54 arranges the first container 30 housed in the second container 40 and the second container 40 at a predetermined height from the installation surface. The lower support portion 54 supplies fresh air to plants to be hydroponically cultured and supplies appropriate light to a target plant by arranging the first container 30 and the second container 40 at a high position. It is effective, and also functions as a handle when moving the hydroponic cultivation container 20. However, it is also possible to set it as the structure which does not have the lower support part 54 like the hydroponic cultivation container 120 shown to 2nd Embodiment.

  The method for producing the hydroponic cultivation container 20 shown in FIG. 1 is not particularly limited, and can be produced, for example, by plastic molding, glass molding, casting formation, cutting, bonding such as bonding or welding, or the like.

Below, an example of the hydroponic cultivation method performed using the hydroponic cultivation container 20 shown in FIG. 1 is demonstrated.
FIG. 4 is a schematic sectional view showing the initial stage of hydroponic culture. In the first step of the hydroponic cultivation, the first culture medium particles 58 as the first culture medium material are provided in the first container 30 of the hydroponic cultivation container 20. Next, as a first growing step, the root of the target plant 72 is grown in the area where the first medium particles 58 are provided. The start of the first breeding step may be performed by replanting the seedlings of the target plant germinated in a culture medium other than the hydroponic culture container 20 on the first medium particles 58, and the germinated seedlings together with the culture medium first container It may be carried out by placing it in 30 or by sowing seeds in the inside of the first container 30 to germinate it. The target plants of the hydroponic culture are not particularly limited as long as they can be grown by the hydroponic culture container 20. For example, herbs such as mint and basil, leaf vegetables such as lettuce and rucola, mini carrots and the like Examples include root vegetables such as radish. In addition, the hydroponic cultivation container 20 is suitable for indoor cultivation, and in indoor cultivation, there is an advantage that it is hard to get insects and there is almost no need to use a pesticide. However, hydroponic cultivation using the hydroponic cultivation container 20 is not limited to indoor cultivation, and can be performed outdoors.

  In the initial stage shown in FIG. 4, the target plant 72 mainly grows inside the first container 30. The grower grows the target plant 72 by adding water or liquid fertilizer to the first medium particles 58 from the first opening 36 of the first container 30. Even when excess water is supplied to the first container 30, the target plant is produced by the excess water flowing out from the first through holes 34a and 34b formed in the first side wall 34 of the first container 30. An appropriate amount of water can be given to 72. Further, since the first through holes 34a and 34b are formed in two steps in the height direction, fresh air can be efficiently supplied to the area where the first culture medium particles 58 are provided. In the initial stage shown in FIG. 1, it is not necessary to provide the second culture medium particles 68 in the region inside the second container 40 and outside the first container 30, whereby the inside of the first container 30 can be The growth state of the target plant 72 can be easily observed.

  FIG. 5 is a schematic sectional view showing the middle stage of hydroponic culture after the initial stage shown in FIG. 4. When the first growing step described above is continued, the root 74a of the target plant 74 grows in the area where the first medium particles 58 are provided, and as shown in FIG. 5, a part of the root 74a is the first through hole 34a, Exposed from 34b. After the start of the first rearing step, as shown in FIG. 5, at the stage where the target plant 74 has grown, the grower is in the second container 40 and outside the first container 30 in the second culture medium. Particles 68 (see FIG. 6) are provided. The second medium particles 68 may be placed after the root 74a of the target plant 74 is partially exposed from the first through holes 34a and 34b as shown in FIG. Good.

  FIG. 6 is a schematic cross-sectional view showing a later stage of hydroponic culture after the middle stage shown in FIG. In the late stage shown in FIG. 5, in the area where the second medium particles 68 are provided, the second growth is performed in which the root 76 a of the target plant 76 exposed to the outside of the first container 30 via the first through holes 34 a and 34 b is grown. Steps are taken. The first container 30 and the first medium particles 58 are not removed even in the later stage shown in FIG. 6 and remain installed inside the second container 40. Therefore, even after the second growing step is started, the first growing step is continued.

  In the late stage shown in FIG. 6, the grower adds water or liquid fertilizer to the area provided with the second medium particles 68 and the first medium particles 58 through the second opening 46 of the second container 40. , To grow the target plant 76. Even when excess water is supplied to the second container 40, excess water flows out from the second through holes 44a and 44b formed in the second side wall 44 of the second container 40, whereby the target plant is obtained. We can give a suitable amount of water to 76. The second through holes 44a and 44b are formed in two steps in the height direction, and the gap between the outer peripheral edge 36a of the first opening 36 and the inner peripheral edge 46b of the second opening 46 is formed large. Thus, fresh air can be efficiently supplied to the area where the second medium particles 68 are provided.

  Thus, according to hydroponic cultivation using the hydroponic cultivation container 20, two containers of different sizes in which the through holes 34a, 34b, 44a, 44b are formed in the side walls 34, 44 are combined in a nested manner, By adding the second medium particles 68 in accordance with the growth stage, appropriate water can be supplied to the target plants 72 to 76 at any growth stage, so that hydroponics can be enjoyed easily. . In addition, since the roots are exposed to the outside of the first container 30 through the first through holes 34a and 34b, there is no need to take out the treated plants from the first container 30 and replant.

  Further, according to the hydroponic cultivation using the hydroponic cultivation container 20, fresh air can flow through the first container 30 and the second through the through holes 34a, 34b, 44a, 44b and the first and second openings 36, 46. Since it can flow easily into the inside of the container 40, target plants 72 to 76 can be easily grown. Further, according to hydroponic cultivation using the hydroponic cultivation container 20, the water added from the upper first opening 36 and the second opening 46 is accompanied by the side wall 34 with the old water, dirt, etc. in the container. Since the water flows out from the through holes 34a, 34b, 44a, 44b of 44, it is possible to easily carry out a water change operation to clean the water in contact with the roots in the container. Thus, the water culture container 20 can easily manage the water quality and the like in the container so that the inside of the container can be maintained in a state suitable for the growth of a plant.

Second Embodiment FIG. 7 is a schematic perspective view showing a hydroponic cultivation container 120 according to a second embodiment of the present invention. With respect to the hydroponic cultivation container 120, only differences from the hydroponic cultivation container 20 shown in FIG. 1 will be described, and the description of the common points will be omitted.

  As shown in FIG. 7, the hydroponic cultivation container 120 has a first container 130 and a second container 40. The first container 130 and the second container 40 have separate inverted truncated cone shapes, and do not have the support 50 and the lower support 54 as shown in FIG. The first container 130 has a first bottom 32, a first side wall 134 in which first through holes 134a and 134b are formed, and a first opening 36, and the diameter of the first through holes 134a and 134 is Except for the difference, it is the same as the first container 30 shown in FIG.

  The first container 130 and the second container 40 have similar shapes with each other at a predetermined ratio, except that the first through holes 134a and 134b and the second through holes 44a and 44b have the same diameter. When the first through holes 134a and 134b and the second through holes 44a and 44b have the same diameter, common medium particles can be easily used as the first medium particles 58 and the second medium particles 68. On the other hand, as shown in FIG. 1, by making the diameter of the first through holes 34a, 34b smaller than the diameter of the second through holes 44a, 44b, the second medium particle 58 is formed as the first medium particle 58. It becomes easy to use one having a smaller particle size than the medium particle 68. The second container 40 shown in FIG. 7 is the same as the second container 40 shown in FIG.

  FIG. 8 is a schematic cross-sectional view showing an initial stage of hydroponic cultivation using the hydroponic cultivation container 120 shown in FIG. In the initial stage, the first medium particles 58 as the first medium material are provided and used inside the first container 130 of the hydroponic culture container 120, and the second container 40 is not used.

  FIG. 9 is a schematic cross-sectional view showing a later stage of hydroponic cultivation using the hydroponic cultivation container 120 shown in FIG. 7, in which the first culture medium particles 58 and the second culture medium particles 68 are added to the hydroponic cultivation container 120. The hydroponic cultivator 110 used is shown. At a later stage shown in FIG. 9, the root 76a of the target plant 76 exposed to the outside of the first container 130 is grown in the area where the second medium particles 68 are provided, via the first through holes 134a and 134b. A breeding step is performed. As shown in FIG. 9, second medium particles 68 are provided inside the second container 40 and outside the first container 130, and the first container 130 is connected to the second container via the second medium particles 68. Supported by 40. In addition, about the other water culture method and effect, it is the same as that of the water culture container 20 which concerns on 1st Embodiment.

  The present invention has been described above by the embodiments. However, it goes without saying that the present invention is not limited to these embodiments and includes other embodiments and modifications. For example, the shape of the through holes 34a, 34b, 44a, 44b, 134a, 134b formed in the first and second containers 30, 40, 130 is not limited to a circle, and other shapes such as ovals, slots, square holes, etc. It may have a shape. Moreover, FIG. 10 is a model decomposition view showing the water culture container 220 which concerns on a modification. The hydroponic cultivation container 220 has an outer shape substantially similar to the hydroponic cultivation container 20 shown in FIG. 1 in the assembled state, but as shown in FIG. 10, the first container 230, the support 250, the The two containers 240 and the lower support 254 are removable from each other.

  The lower surface of the first bottom portion 232 of the first container 230 is formed with an engagement recess 232 a with which the upper convex portion 250 a of the support portion 250 engages, and the first container 230 can be detachably attached to the support portion 250. It is. Further, on the upper surface of the second bottom portion 242 of the second container 240, an engagement concave portion 242a with which the lower convex portion 250b of the support portion 250 is engaged is formed. It is removable. In addition, the first container 230 and the second container 240 can be connected via the support 250.

  Furthermore, on the lower surface of the second bottom portion 242 of the second container 240, an engagement concave portion 242b is formed, with which the upper convex portion 254a of the lower support portion 254 engages. It is removable with respect to. Therefore, in the hydroponic cultivation container 220 shown in FIG. 10, the lower support portion 254 can be attached to and detached from the second container 240 as needed.

  The hydroponic cultivation container 220 shown in FIG. 10 can be used to perform the same hydroponic cultivation as the hydroponic cultivation container 20 shown in FIG. 1 by using the first container 230 and the second container 240 in a connected state. The same hydroponic cultivation as the hydroponic cultivation container 120 shown in FIG. 7 can also be performed by using the first container 230 and the second container 240 in a separated state.

  In addition, it goes without saying that the container, the size of the through hole, the position of the through hole, and the like shown in the embodiment can be appropriately changed according to the type and growth mode of the plant to be grown. For example, when cultivating vegetables such as turnips, potatoes, radishes, pumpkins, etc., which grow to a size of several tens of centimeters or more, it is possible to use the above-mentioned hydroponic culture containers 20, 220. The dimensions in the height direction of the first container 30 and the second container 40 may be 30 cm or more.

  As the first medium material and the second medium material used for the above-described hydroponic culture containers 20, 120, 220, either one of the first medium particles 58 and the second medium particles 68 described above is used instead, or a first medium Instead of both the particles 58 and the second medium particles 68, soil may be used. That is, the hydroponic cultivation container 20, 120, 220 is suitable not only as a hydroponic cultivation container but also as a plant cultivation container other than hydroponic cultivation such as soil cultivation using soil. Even when plants are grown using soil as part of the culture medium and using hydroponic culture containers 20, 120, and 220 as soil culture culture plant containers, the plant cultivator and plant cultivation according to the present invention The container exerts the same effect as the case of cultivating a plant by using it as a hydroponic culture vessel and a hydroponic cultivation container as described above.

  The first through holes 34a, 34b, 134a, 134a, 34a, 34a, 34a, 34a, 34a, 34a, 34a, 34a when using the hydroponic culture containers 20, 120, 220 as soil culture plant culture containers or hydroponic culture using fine-grained culture particles In order to prevent soil and culture medium particles from flowing out from the 134b and the second through holes 44a and 44b, a water / air-permeable soil runoff preventing material such as a net, a mesh or a grid may be used as the first through holes 34a and 34b. , 134a and 134b and the second through holes 44a and 44b. In this case, with regard to the soil run-out preventing material, the root of the plant breaks through at least a part of the soil run-out preventing material as the plant grows, and the first through holes 34a, 34b, 134a, 134b and the second through holes 44a, 44b It is preferably provided to allow penetration.

  Further, the opening shape of the through hole is not limited to a substantially circular shape as shown in the drawings, and may be a shape other than a circular shape such as a square, a star, or a heart. In addition, the hydroponic culture container may have an assembled structure or an integral structure. For example, the support unit 50, 250 may be any one or both of the first container 20, 220 and the second container 40, 240. It may be fixed to

10, 110 ... hydroponic culture machine 20, 120, 220 ... hydroponic culture container 30, 130, 230 ... first container 32, 232 ... first bottom 34, 134 ... first side wall 34a, 34b, 134a, 134b ... first 1 through hole 36: first opening 36a: outer peripheral edge 40, 240: second container 42, 242: second bottom 44: second side wall 44a: second through hole 44b: second through hole 46: second opening 46b: Inner peripheral edge 50, 250 ... Support section 54, 254 ... Lower support section 58 ... First medium particle 68 ... Second medium particle 72, 74, 76 ... Target plant 74a, 76a ... Root 232a, 242a, 242b ... Engagement recess 250a , 254a ... upward convex 250b ... downward convex

Claims (8)

A first container having a first bottom, a first side wall, and a first opening that opens upward, wherein a plurality of first through holes are formed in the first side wall;
A second bottom portion, a second side wall, and a second opening that is open upward and larger than the first opening, and a plurality of second through holes are formed in the second side wall, A second container containing the first container inside;
A first medium material provided inside the first container;
It is provided inside the second container and outside the first container so that it can be viewed from above through the gap between the outer peripheral edge of the first opening and the inner peripheral edge of the second opening. A second medium particle having a particle size larger than the opening diameter of the through hole;
Plant cultivator with. The first container has a first bottom, a first side wall, and a first opening that opens upward, and a plurality of first through holes are formed in the first side wall. Providing a medium material,
A first rearing step in which a root of a target plant is grown in an area provided with the first medium material in the first container;
After the start of the first growth step, it has a second bottom, a second side wall, and a second opening that opens upward and is larger than the first opening, and a plurality of second side walls are provided. A second through hole is formed, and the particle diameter is larger than the diameter of the opening of the second through hole, inside the second container that accommodates the first container inside, and outside the first container. Providing second culture medium particles so as to be visible from above through a gap between the outer peripheral edge of the first opening and the inner peripheral edge of the second opening;
A second cultivation step, comprising: growing a root of the target plant exposed to the outside of the first container via the first through hole in a region where the second culture medium particles are provided. A first container having a first bottom, a first side wall, and a first opening that opens upward, wherein a plurality of first through holes are formed in the first side wall;
A second bottom portion, a second side wall, and a second opening that is open upward and larger than the first opening, and a plurality of second through holes are formed in the second side wall, And a second container internally containing the first container,
A plant characterized in that the first container occupies an area area of 10 to 70% in the inside of the second opening as viewed from above the second container containing the first container with the opening direction aligned. Cultivation container.   A support for connecting the first bottom of the first container and the second bottom of the second container and supporting the first container at a predetermined distance from the second container is provided. The plant cultivation container of Claim 3 which it has.   The plant cultivation container according to claim 3, wherein the first container is supported by the second container via second medium particles provided inside the second container and outside the first container.   The plant cultivation container according to any one of claims 3 to 5, wherein the first container and the second container are made of a transparent material that transmits visible light.   The plant cultivation container according to any one of claims 3 to 6, wherein a through hole is not formed in the first bottom portion and the second bottom portion.   The plant cultivation container according to any one of claims 3 to 7, wherein at least a part of the second through hole is formed below the first bottom of the first container.

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