JP7152862B2 - Plant cultivator and related technology - Google Patents

Description

TECHNICAL FIELD The present invention relates to a plant cultivator containing root growth bodies in a container and related technology.

2. Description of the Related Art Various types of plants are cultivated for greening purposes in detached houses, condominiums, other buildings, public spaces, etc., using plant cultivators containing and holding various root-growing materials in containers or the like.

However, when the temperature of the root growing material rises too much, such as in the case of receiving strong direct sunlight during periods of high temperature, such as in the summer, adverse or fatal effects such as so-called heat wilt will be exerted on the plants to be cultivated. It will happen. This point often poses a problem, for example, in plant cultivation for greening the walls of buildings.

In Japanese Patent No. 5366792, it is possible to suppress the transfer of heat due to back solar radiation to the planting part, and it is composed of a holding part and a back side of the holding part, and the upper holding part projects downward at the front end in a side view. An irrigation hose groove is formed on the bottom surface, the lower holding part has a hook shape with a front end protruding upward when viewed from the side, and a drainage groove is formed on the upper surface. An invention of a greening block in which the back surface of the holding part is integrated with the front surface of the basic block part is disclosed, and this is applied to a more general plant cultivation device in which the root growth is accommodated in the container. It is not possible.

Japanese Patent No. 5366792

The present invention provides a plant cultivator, a plant cultivator-forming member, and an isolated space holding part-forming member capable of effectively suppressing a temperature rise of the root-growing body in a plant cultivating device comprising a container containing the root-growing body. And it aims at providing the temperature rise control method.

The plant cultivator, the plant cultivator forming member, the isolated space holding member forming member, and the method for suppressing temperature rise according to the present invention can be expressed as follows.

(1) A container having an opening at the top contains a root growth that has water retentivity and allows the contained water to evaporate from the outer periphery,
A plant cultivator comprising a space between the outer periphery of the root growth body and the inner periphery of the container, through which water contained in the root growth body can evaporate from the outer periphery.

In a plant cultivator containing a root growth body in a container, the temperature of the root growth body may rise due to direct heat from outside air, direct sunlight, etc. The temperature rises due to direct sunlight or outside air temperature, and the heat is transferred to raise the temperature of the root growth. In a state in which the above-ground part of the plant grows above the container, the rate of temperature rise through the side circumference of the container increases.

In the present invention, a separated space is provided between the outer circumference of the root growth contained in the container and the inner circumference of the container so that water contained in the root growth can evaporate from the outer circumference.

Therefore, as the temperature of the root growing body rises, the amount of water contained in the root growing body evaporates from the outer periphery of the root growing body to the isolated space. Body temperature rise is effectively suppressed.

In addition, when the temperature of the container rises due to a rise in the outside air temperature or direct sunlight, the heat transfer from the container to the root growing body contained in the container is hindered by the isolated space. Body temperature rise is effectively suppressed.

By effectively suppressing the temperature rise of the root growth in this way, adverse effects on cultivated plants can be prevented.

(2) The plant cultivator according to (1) above, which has an isolated space holding part for holding the isolated space between the outer peripheral part of the root growth housed in the container and the inner peripheral part of the container.

(3) The isolated space holding part is formed between the outer peripheral part of the root growth and the inner peripheral part of the container so that the isolated space can be held between the outer peripheral part of the root growth and the inner peripheral part of the container so that the water contained in the root growth can evaporate from the outer peripheral part. The plant cultivator according to (2) above, which is integrally formed.

(4) The container, wherein the isolated space holding part is capable of holding an isolated space between the outer periphery of the root growth and the inner periphery of the container, in which moisture contained in the root growth can evaporate from the outer periphery; The plant cultivator according to the above (2), which is composed of the isolated space holding member forming material separate from the root growth body.

(5) The plant cultivator according to any one of (1) to (4) above, wherein the isolated space can be ventilated with the outside.

(6) A plant cultivator comprising a container having an opening at the top and an isolated space holding part, in which a root growth body having water retentivity and capable of evaporating contained water is accommodated in the container. A plant cultivator forming material for forming a
The isolated space holding part forms an isolated space between the outer periphery of the root growth body contained in the container and the inner periphery of the container, through which water contained in the root growth body can evaporate from the outer periphery. A plant cultivator forming material for holding.

(7) The plant cultivator-forming member according to (6) above, wherein the space is ventilated with the outside while the root growth is housed in the container.

(8) In a state in which the isolated space holding part accommodates the root growth in the container, the moisture contained in the root growth is between the outer periphery of the root growth and the inner periphery of the container. The plant cultivator-forming material according to (6) or (7) above, which is formed of an isolated-space-holding-part-forming material that is separate from the container and the root growth body and capable of holding the evaporative isolated space.

(9) A separated space holding member forming member for use in the plant cultivation device according to (4) above or the plant cultivation device forming member according to (8) above.

(10) A container having an opening at the top contains a root growth that has water retentivity and allows the contained water to evaporate from the outer periphery,
Root growth for plant cultivation, characterized in that an isolated space is formed between the outer periphery of the root growth and the inner periphery of the container so that moisture contained in the root growth can evaporate from the outer periphery. Body temperature rise control method.

According to the present invention, adverse effects on cultivated plants can be prevented by effectively suppressing the temperature rise of the root growth.

It is a perspective view which shows the state which uses a plant cultivation device for wall surface greening. It is an enlarged vertical cross-sectional view of a plant cultivation device. It is a top view of a plant cultivation device. Fig. 10 is a bottom perspective view of the root growth/separate space holding part and the bottom space holding part; FIG. 10 is a perspective view of a container with an isolated space holding part; FIG. 10 is an enlarged vertical cross-sectional view of a container with interspace holders; FIG. 10 is a perspective view of a separate space holding part and a bottom space holding part; FIG. 4 is an enlarged vertical cross-sectional view of the spacing retainer and the bottom space retainer;

[1] Embodiments of the present invention will be described with reference to the drawings.

All drawings are for examples of embodiments of the present invention.

In the example shown in FIGS. 1 to 4, the plant cultivator A comprises a container B containing a root growth body C. In the example shown in FIGS.

(1) Container B

The container B for containing the root growth C has a box shape which is rectangular in plan view and is made of synthetic resin and can store water. be.

This plant cultivator A has a pair of left and right container support members S attached to the vertical support members Y in front of a wire mesh W fixed in parallel to the wall surface of a building or the like via a pair of left and right support members Y. By supporting the container B of the plant cultivator A with the (container receiving fitting), the wire mesh W is used for plant cultivation for greening the wall surface. Containers B of a plurality of plant cultivators A can be vertically arranged and supported on a pair of left and right vertically long support members Y, and the vertically long support members Y can be arranged at positions separated in the horizontal direction or added in the vertical direction. Further, a plurality of wire meshes W can be provided horizontally or vertically to green the wall surface.

(2) Root growth body C

The root growth body C accommodated in the container B has a rectangular parallelepiped shape which is one size smaller than the inside of the container B as a whole.

Root growth body C is composed of felt-shaped growth bodies formed by compressing and molding irregularly aggregated fibers into a rectangular parallelepiped shape, and has water retentivity. It can evaporate from the part, and has air permeability in all directions as a whole. The root growing body C is divided into about 4/5 of the upper side and about 1/5 of the lower side. The planting holes for planting the roots of the plants to be cultivated with the upper opening are provided at corresponding multiple locations, and are stacked vertically to form holes that are continuous in the vertical direction. The rectangular parallelepiped lower growth body C2 that constitutes 1 of does not have such a hole

Water supply to the root growth body C can be performed by arranging an irrigation pipe or the like.

(3) Separation space part P and separation space holding part R

Separation space holding portions R are arranged in portions along both long sides of the inner peripheral portion of the container B in a plan view. The separation space holding part R is provided between the outer periphery of the root growth body C housed in the container B and the inner periphery of the container B when the root growth body C contains water, It is for holding the isolated space part P that can evaporate from the part.

The root growth body C and each separation space holding part R are smoothly accommodated in the container B between the part along both or one of the short sides in the plan view of the inner peripheral part of the container B and the outer peripheral part of the root growth body C. In order to do so, it can have a certain amount of voids. Further, it is also possible to separately provide a separation space holding portion between the portion along both or one of the short sides in the plan view of the inner peripheral portion of the container B and the outer peripheral portion of the root growth body C.

The separated space holding part R consists of a lattice-like part R1 along a certain plane, and a large number of cylindrical support bodies R2 provided on one side of the lattice-like part R1 with respect to the certain plane, The other side of the lattice-like portion R1 covers the outer periphery of the root growth body C along the outer periphery of the root growth body C. are placed. The support R2 supports the lattice-like portion R1 against the inner periphery of the container B and maintains a predetermined distance between the inner periphery of the container B and the outer periphery of the root growth C. As shown in FIG.

In the isolated space P, mainly the portion between the lattice-like portion R1 and the inner peripheral portion of the container B can ventilate with the outside through the opening of the container B. As shown in FIG.

(4) Bottom space portion T and bottom space holding portion U

At the bottom of the container B, a bottom space holding part U is arranged for supporting the bottom of the root growth body C and discharging excess water in the root growth body C. As shown in FIG. The bottom space holding part U consists of a lattice-like part U1 along a certain plane and a large number of cylindrical support bodies U2 provided on one side of the lattice-like part U1 with respect to the certain plane, The support U2 supports the grid portion U1 against the bottom of the container B and maintains a predetermined bottom space T between the bottom of the container B and the bottom of the root growth C. As shown in FIG.

(5) FIGS. 5 and 6 show another example of the plant cultivator of the present invention.

The container D in this example has a rectangular groove shape in which separate space holding portions F, which are rectangular in side view, are erected perpendicularly to both long sides of a bottom plate portion E, which is rectangular in plan view. Each of them is substantially closed by the portion K, and has a rectangular synthetic resin box shape in a plan view. The upper portion of the container D is an opening that opens upward on the entire inside of the outer peripheral portion. The root growth body to be accommodated in the container D has a horizontal length slightly shorter than that between the two end plate portions K, and a horizontal width that is approximately the same as the distance between the separated space holding portions F facing each other in the horizontal direction. It has a rectangular parallelepiped shape (it may consist of a plurality of parts) having a height about the height from the upper part of the bottom plate part E to the upper end of the container D.

The bottom plate portion E includes a rectangular upper convex portion E1 provided over the entire length in the central portion in the transverse direction, and on both sides of the upper convex portion E1 at regular intervals in the transverse direction ( A plurality of vertical support plates E2 (which may be discontinuous) are provided to support the bottom of the root growth housed in the container D, each of the plurality of vertical support plates E2 on either side of the upper protrusion E1. Excess moisture in the root growth can be discharged into the lower space H formed on both sides.

Both longitudinal ends (or one end) of the lower space H formed on both sides of the vertical support plate E2 are not closed by the end plate K, and water is discharged to the outside from the openings thereof. can.

Each of the separated space holding portions F is composed of a side plate portion F1 having a horizontally long rectangular vertical shape and eight horizontal plate portions F2 protruding from the side plate portion F1 toward the inside of the container D. As shown in FIG. The horizontal plate-shaped portion F2 has a vertical direction that is the longitudinal direction of the container D in a plan view, and a horizontal width that is the space between the outer peripheral portion of the root growth body contained in the container D and the inner peripheral portion of the container D. , and the eight horizontal plate-shaped portions F2 are arranged in parallel at vertical intervals (equal intervals) from the side plate portion F1 so that the longitudinal direction of the container D in plan view It protrudes over the entire length of the direction. The horizontal plate portion F2 is continuous, but may be discontinuous.

When each horizontal plate-shaped part F2 is in almost contact with the outer peripheral part constituting the long side part of the root growth body, and the root growth body contains water between the adjacent parallel horizontal plate-shaped parts F2. In addition, it holds the isolated space Fa where the moisture can evaporate from the outer periphery of the root growth.

Both longitudinal ends (or one end) of the separated space Fa formed between the vertically adjacent horizontal plate-like portions F2 are not blocked by the end plate portion K, and are not closed by the end plate portion K. When the body is housed in the container D, it can be ventilated to the outside through the opening.

The bottom plate portion E and the separation space holding portion F in this example can be obtained by extrusion molding of synthetic resin if they have a constant cross-sectional shape.

(6) FIGS. 7 and 8 show still another example of the plant cultivator of the present invention.

The separated space holding portion G and the bottom space holding portion J in this example are arranged such that the separated space holding portion G, which is rectangular in side view, stands perpendicular to both long sides of the bottom space holding portion J, which is rectangular in plan view. It has a rectangular groove shape and can be obtained by extrusion molding of a synthetic resin.

In a state in which the separated space holding part G and the bottom space holding part J are arranged in a container similar to the container B, the bottom space holding part J is supported on the bottom of the container, and the outside of both the separated space holding parts G The face portions are in contact with the inner side surfaces of the side plates that form the long sides of the container. In this example, the short side portion of the container does not have a space holding portion, but a separate space holding portion may be provided. The root growth body housed in the container has a horizontal length slightly shorter than the distance between the longitudinal ends of the container, and a horizontal width approximately equal to the distance between the horizontally opposed separated space holding portions G. , and has a rectangular parallelepiped shape (it may consist of a plurality of parts) having a height from the upper part of the bottom space holding part J to the upper end of the container.

The vertical cross-sectional shapes of the separation space holding portion G and the bottom space holding portion J are constant in the longitudinal direction.

The bottom space holding part J supports the bottom part of the root growth by means of a rectangular upward projection J1 in the center and horizontal support plates J2 cantilevered inward from both sides. Excess moisture in the root growth can be discharged into the lower space formed between the horizontal support plate J2 and the upper protrusion J1 with a gap therebetween.

Both the separated space holding portions G have a vertical direction that is the longitudinal direction of the container, and a width that is such that the outer peripheral portion of the root growth housed in the container and the inner peripheral portion of the container face each other with the separated space portion interposed therebetween. Five horizontal plate-like portions G1 each having a constant width in the direction of the vertical direction (the width direction of the space) project inwardly from the vertical plate G2 in parallel at equal intervals in the vertical direction. Each horizontal plate-shaped part G1 is in contact with the outer peripheral part constituting the long side part of the root growth, so that when the root growth contains water between the adjacent parallel horizontal plate-shaped parts G1 , the separated space Ga where the moisture can evaporate from the outer periphery.

All or one or more of the horizontal plate-like portion G1 and the horizontal support plate J2 may be discontinuous in the longitudinal direction.

[2] Embodiments of the present invention, including forms other than those described above, will be further described.

The plant cultivator of the present invention contains a root growth body in a container. Moreover, the plant cultivator-forming material of the present invention has a container and a space holding part, and forms a plant cultivator by housing a root growth body in the container.

The plant cultivator of the present invention can be installed in various places in detached houses, condominiums, other buildings, public spaces, etc. and used for cultivating plants. can also be preferably used.

(1) container

The container containing the root growth has an opening at the top.

The container may have a rectangular (rectangular or square) box shape in plan view, but is not necessarily limited to this.

The upper part of the container can have an opening in which the whole or part of the inner side of the side circumference of the container opens upward, and for example, the upper part has an opening that opens sideways or obliquely upward. It is also possible to

The container can have a water reservoir and can also be able to drain excess water. The container can be made of, for example, synthetic resin, metal, or ceramics, but is not limited to these. .

The container can be used, for example, by being placed on the ground, floor surface, plant cultivation shelf, or the like, or by being supported by various container supports.

The container can be used in a state where the outer periphery (the outer periphery of the side periphery [e.g., the outer periphery of the side wall]) is entirely facing the outside. In the case of the shape, it can be used in a state where only one side, adjacent or opposing two or three sides) are exposed to the outside air.

When the plant cultivator of the present invention is used for cultivating plants for greening the wall surface of a building, for example, the container support member is attached to the container support member fixed to the wall surface, and the plant cultivator is supported by the container support member. container. Further, for example, a wire mesh can be fixed parallel to the wall surface via the container supporting member, and the wall surface can be greened via the wire mesh.

(2) Root growth

The root growth contained within the container can be shaped and sized according to the container. The shape of the root growth can be, for example, a rectangular parallelepiped shape or a cubic shape, but is not limited to this.

The root growth has water retentivity, and the contained water can evaporate from the outer periphery. It is preferable that the whole or at least the outer peripheral portion facing the isolated space holding portion has permeability to steam or the like in all directions or at least in the lateral and vertical directions as the root growth. Examples of such root growths include irregularly aggregated fibers (the type of fiber is not particularly limited. Various natural fibers such as coconut shell fiber, jute, kenaf, cotton, etc., polyester, polyamide, polyacrylic, etc.). and other synthetic fibers, or other fibers.), in particular, those made by compression molding irregularly aggregated fibers, and fiber molding by needle punching or containing and melting binder fibers. Non-woven fabrics, non-woven fabrics piled up, non-woven fabrics, woven fabrics, or other fabrics containing artificial lightweight soil in a bag with an upper opening (for example, the above-mentioned root growth C), in which artificial lightweight soil is accommodated in a non-woven fabric bag with an upper opening similar to C), and other various plant root growth materials.

Moisture can be supplied to the root growth by various watering means or the like.

(3) Separation space

Between the outer periphery of the root growth housed in the container and the inner periphery of the container, there is an isolated space in which water contained in the root growth can evaporate from the outer periphery.

Strictly speaking, the fact that the water contained in the root growth body evaporates from the outer peripheral part to the isolated space part includes the case where the water vapor evaporated in the root growth body reaches the isolated space part due to diffusion or the like.

The inner peripheral portion of the container means the inner peripheral portion of the side peripheral portion (for example, the side peripheral wall) of the container in the state of use (typically in the upright state).

The outer periphery of the root growth housed in the container means the outer part of the root growth housed in the container (the container in use).

The isolated space is a portion between the outer circumference of the root growth contained in the container and the inner circumference of the container, and when the root growth contained in the container contains water, The moisture can evaporate from the periphery of the root growth to the isolated space. For example, the isolated space part faces the outer peripheral part of the root growth body contained in the container directly or via a breathable member (for example, a grid-like part), etc., and the moisture contained in the root growth body is It can be made to be able to evaporate from the outer periphery of the root growth to the isolated space.

Also, the isolated space can be ventilated with the outside. The isolated space part is, for example, one that opens upward and can ventilate with the outside through the opening provided at the top of the container, or an opening that allows ventilation to the side of the container (for example, the root growing body open in a direction orthogonal to the outer peripheral surface, open in a direction parallel to the outer peripheral surface of the root growth), and allow ventilation with the outside through the opening; to prevent the moisture contained in the root growth from evaporating from the outer periphery of the root growth to the isolated space, and to prevent the temperature of the isolated space from rising. can be done.

In the isolated space part, the gap between the entire outer circumference of the root growth housed in the container and the inner circumference of the container can be substantially constant as a whole. Alternatively, it can be substantially constant in 80% or more, but it is not limited to this.

The separation space can be provided between the entire outer periphery of the root growth housed in the container and the inner periphery of the container, but is not limited to this. For example, 20% or more, 40% or more, 50% or more, or 70% or more of the space between the outer circumference of the root growth housed in the container and the inner circumference of the container may be provided with a space portion. can. More specifically, when the container has a square shape in plan view, three sides of the square in plan view or any two sides (for example, two opposite sides or two adjacent sides) or an inner peripheral portion along any one side and the outer peripheral portion of the root-growing material housed in the container.

In addition, it is also possible to have a space between the bottom portion of the root growth housed in the container and the bottom portion of the container.

(4) Separation space holding part

The plant cultivator of the present invention can have an isolated space holding portion for holding an isolated space portion between the outer peripheral portion of the root growth housed in the container and the inner peripheral portion of the container.

The isolated space holding part is placed between the outer peripheral part of the root growth and the inner peripheral part of the container so that the moisture contained in the root growth can evaporate from the outer peripheral part (or furthermore, it can be ventilated with the outside). (like) can hold the isolated space, for example, it can be made of a material that is integrated with the container or the root growth, or a separate space holding member that is separate from the container and the root growth. can also be assumed.

for example,
A plurality of (sufficient number to hold the isolated space) plate-shaped bodies [the vertical direction is the circumferential direction (e.g., horizontal direction) of the outer periphery of the root growth or the inner periphery of the container, and the width direction is the inside of the container. Plate-shaped bodies in the direction in which the outer periphery of the housed root growth and the inner periphery of the container face each other with the separation space interposed therebetween (the width direction of the separation space)] are spaced vertically (e.g., at equal intervals) ), and connected at least at the intermediate portion in the width direction of the isolated space, the inner peripheral side (the outer peripheral side of the root growth body), the outer peripheral side (the inner peripheral side of the container), or the circumferential end, etc. Those connected by a material [e.g., multiple linear, rod-like, or thin plate-like connecting materials, one or more lattice-like (i.e., having a large number of through holes, for example, a structure along a certain plane) Alternatively, the container is connected by a plate-like connecting member, the connecting members are connected directly or via another member such as a bottom plate portion, or, for example, the inner peripheral portion of the container itself is the connecting member. The object or container and the plurality of plate-shaped bodies may be integrated];

The vertical direction of the plate-shaped body is the vertical direction, and the horizontal direction of the plate-shaped body is such that the outer peripheral portion of the root growth body contained in the container and the inner peripheral portion of the container are sandwiched between the two. A plurality of (sufficient number to hold the isolated space) plate-shaped bodies in the facing direction (separate space width direction) are spaced in the circumferential direction of the outer peripheral portion of the root growth or the inner peripheral portion of the container (preferably are arranged at equal intervals), and at least in the middle part in the width direction of the separated space, the inner peripheral side (the outer peripheral side of the root growth), the outer peripheral side (the inner peripheral side of the container), the lower end, etc. Those connected by a connecting material [e.g., a plurality of linear, rod-like, or thin plate-like connecting materials, one or more lattice-like or plate-like connecting materials connected by one or more connecting materials, connecting materials directly or a bottom plate For example, the inner peripheral portion of the container itself is a connecting member, or the container and the plurality of plate-like bodies are integrated. can also];

Consisting of a cage-shaped structure (for example, a cage-shaped structure may be formed on the inner peripheral side of the container itself);

A grid-like portion along the outer periphery of the root growth (for example, a grid-like portion that substantially covers the outer periphery of the root growth) and a predetermined gap between the grid-like portion and the inner periphery of the container by supporting the grid-like portion against the inner periphery of the container. A support that maintains the separation distance (for example, a large number of rod-shaped or cylindrical supports in the width direction of the separation space, plate-shaped supports, etc.);

A structural part along the inner circumference of the container (for example, a plate-shaped part, a grid-like part, etc. that almost covers the inner circumference of the container, or the inner circumference of the container itself), and the structural part is the outer circumference of the root growth consisting of a support (for example, a large number of rod-shaped or cylindrical supports or plate-shaped supports in the width direction of the separation space) that supports the part and maintains a predetermined separation distance between them;

A grid-like portion along the outer periphery of the root growth (for example, a grid-like portion that substantially covers the outer periphery of the root growth) and a structural portion along the inner periphery of the container (for example, a structure that substantially covers the inner periphery of the container). A plate-shaped part, a grid-shaped part, or the inner peripheral part of the container itself) and a connecting member (for example, a large number of rod-shaped or cylindrical parts in the width direction of the isolated space) that are connected so as to maintain a predetermined distance between them (shaped connecting member, plate-like connecting member, etc.).

A Plant cultivation device B Container C Root growth body C1 Upper growth body C2 Lower growth body D Container E Bottom plate part E1 Upper convex part E2 Vertical support plate F Separation space holding part F1 Side plate part F2 Horizontal plate-shaped part Fa Separation space part G Separated space holding part G1 Horizontal plate-shaped part G2 Vertical plate Ga Separated space part H Lower space part J Bottom space holding part J1 Upper convex part J2 Horizontal support plate K End plate part P Separated space part R Separated space holding part R1 Grid-like part R2 support S container support T bottom space portion U bottom space holding portion U1 grid-like portion U2 support W wire mesh Y longitudinal support member

Claims (10)

In a container having an opening at the top, a root growth that has water retention and shape retention properties and whose moisture can evaporate from the outer periphery is accommodated,
Between the outer peripheral part of the root growth body and the inner peripheral part of the container, there is an isolated space part in which the moisture contained in the root growth body can evaporate from the outer peripheral part,
A plant cultivator having an isolated space holding part for holding the isolated space part between the outer peripheral part of the root growth body and the inner peripheral part of the container,
The isolated space holding part is provided on the grid-shaped part along the outer periphery of the root growth, and the grid-shaped part is supported directly or via another structure on the inner periphery of the container to provide a predetermined space between the two. provided with a number of supports for maintaining the separation distance ,
The plant cultivator , wherein the support is a portion other than the portion constituting the grid-like portion . 2. Plant cultivation according to claim 1, wherein the root growth having water-holding and shape-retaining properties is a molded fiber assembly, nonwoven fabric, nonwoven fabric stack, or a fabric bag containing an artificial lightweight soil in an upwardly opening bag. vessel. 3. The plant cultivator according to claim 1 or 2 , wherein a large number of support members provided in the grid-like portion along the outer periphery of the root growth are spaced apart from each other along the periphery including up and down and left and right. In a container having an opening at the top, a root growth that has water retention and shape retention properties and whose moisture can evaporate from the outer periphery is accommodated,
Between the outer peripheral part of the root growth body and the inner peripheral part of the container, there is an isolated space part in which the moisture contained in the root growth body can evaporate from the outer peripheral part,
A plant cultivator having an isolated space holding part for holding the isolated space part between the outer peripheral part of the root growth body and the inner peripheral part of the container,
The separated space holding part is composed of a plurality of plate-shaped bodies arranged in parallel at intervals in the vertical direction,
Each of the plate-like bodies extends along the circumferential direction of the outer periphery of the root growth body, and the width direction is the direction in which the outer periphery of the root growth body and the inner periphery of the container face each other with a space between them. A plant cultivator characterized by being a plate-shaped body. In a container having an opening at the top, a root growth that has water retention and shape retention properties and whose moisture can evaporate from the outer periphery is accommodated,
Between the outer peripheral part of the root growth body and the inner peripheral part of the container, there is an isolated space part in which the moisture contained in the root growth body can evaporate from the outer peripheral part,
A plant cultivator having an isolated space holding part for holding the isolated space part between the outer peripheral part of the root growth body and the inner peripheral part of the container,
The separated space holding part is composed of a plurality of plate-shaped bodies arranged in parallel at intervals in the circumferential direction of the outer periphery of the root growth body,
Each of the plate-like bodies extends along the vertical direction of the outer periphery of the root growth body, and the width direction is the direction in which the outer periphery of the root growth body and the inner periphery of the container face each other with a space between them. A plant cultivator characterized by being a plate-shaped body. 6. The method according to claim 4 or 5, wherein the water-retaining and shape-retaining root growth is a molded fiber assembly, nonwoven fabric, nonwoven fabric stack, or artificial lightweight soil contained in a fabric bag that opens upward. plant grower. 7. The plant cultivator according to any one of claims 1 to 6, wherein said isolated space can be ventilated with the outside. 5. The container according to any one of claims 1 to 4 , wherein the container has an air-permeable opening on the side thereof, and the isolated space can be ventilated with the outside through the opening. plant grower. a plurality of plate-shaped bodies arranged in parallel at intervals in the vertical direction, which constitute the isolated space holding part, have ends in a direction along the circumferential direction of the outer periphery of the root growth body,
at the end of the plate-shaped body, a ventable opening is formed in the side of the container;
5. The plant cultivator according to claim 4 , wherein said isolated space can be ventilated with the outside through said opening. housing a root growth that has water retentivity and shape retention and that allows the contained water to evaporate from the outer periphery in a container having an opening at the top;
Between the outer peripheral portion of the root growth body and the inner peripheral portion of the container, there is provided an isolated space portion in which water contained in the root growth body can evaporate from the outer peripheral portion;
holding the isolated space portion as having an isolated space holding portion between the outer peripheral portion of the root growth and the inner peripheral portion of the container ;
The isolated space holding unit is
A grid-shaped portion along the outer periphery of the root growth is provided with a support for supporting the grid-shaped portion against the inner periphery of the container directly or via another structure to maintain a predetermined separation distance therebetween. provided with a large number of supports, wherein the supports are portions other than the portions constituting the lattice-like portion;
It consists of a plurality of plate-shaped bodies arranged in parallel at intervals in the vertical direction, and each of the plate-shaped bodies is arranged along the circumferential direction of the outer periphery of the root growth body and the inner periphery of the container. is a plate-shaped body whose width direction is the direction facing each other with a space between them, or
It is composed of a plurality of plate-shaped bodies arranged in parallel at intervals in the circumferential direction of the outer periphery of the root growth body, and each of the plate-shaped bodies extends along the vertical direction of the outer periphery of the root growth body. and the inner peripheral portion of the container are plate-shaped bodies whose width direction is the direction in which they are opposed to each other with a space between them
A method for suppressing temperature rise of root growth bodies for plant cultivation.

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