JP2009100712A - Plant cultivation body and method for producing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant cultivation body enabling a three-dimensionally arranged water retaining plant growing material to demonstrate water retention as the whole, and suitable for three-dimensional plant cultivation, and to provide a method for producing the plant cultivation body. <P>SOLUTION: This plant cultivation body is composed of many water retaining plant growing layers 10, many vertically separated layers 20, many supporting bodies 30, and watering pipes 40 for each of the vertically separated layers 20. The vertically separated layers 20 are put all between each of the water retaining plant growing layers 10 and water retaining plant growing layers 10 thereunder. Each of the vertically separated layers 20 is made of a lattice-like structure 22, and each of the lattice-like structures 22 is supported by a metallic supporting body 30 which is set on the base end part of the lower lattice-like structures 22. Each of the water retaining plant growing layers 10 is supported by the lattice-like structures 22 in the vertically separated layers 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a plant cultivated body having a water-retaining plant growth layer and a method for producing a plant cultivated body.

  In order to green the rooftop of a building, a water-retaining plant growth mat such as a mat body formed by gathering fibers has been conventionally used. Greening with this type of water-retaining plant growth mat is performed by laying a water-retaining plant growth mat on the rooftop of a building, etc., and cultivating plants on the water-retaining plant growth mat while supplying water, fertilizing, etc. . Such a greening method performed by laying a water-retaining plant growth mat on the target surface is suitable for greening by performing plant cultivation in a plane along a horizontal plane or a plane with a small inclination.

  For example, in Japanese Patent Laid-Open No. 10-98913 (Patent Document 1), even if it is not on the soil, such as on the roof of a building, the seeds will sprout just by spreading the water on it and then watering it. In addition, as a horticultural mat that can grow plants very easily without choosing a place, it is made of a non-woven fabric of plant fibers, etc. A horticultural mat comprising a water retaining mat that supplies water by capillary action is disclosed.

However, such a greening method is not necessarily suitable for greening a three-dimensional structure or a target surface having a relatively large inclination angle. When a water-retaining plant growth mat is arranged along a target surface having a relatively large inclination angle in a three-dimensional structure or other object, or the water-retaining plant growth mat is increased in height or water-retaining plant growth mat When the water-based liquids are stacked in the height direction, the supplied water-based liquid is the lower part of the water-retaining plant growth mat having a relatively large inclination angle or the water retention plant growth mat having a high height, or the water retention layer stacked in the height direction. It tends to gather in the water-retaining plant growth mat below the sex plant growth mat, and the amount of water retained in the upper part may be insufficient.
JP-A-10-98913

  It is an object of the present invention to provide a plant cultivated body suitable for three-dimensional plant cultivation and a method for producing the plant cultivated body, in which the three-dimensionally arranged water-retaining plant growth material can exert water retaining ability as a whole. .

(1) The plant cultivated body of the present invention that achieves the above-mentioned object,
A plant cultivated body with a water-retaining plant growth layer,
A plurality of water-retaining plant growth layers are stacked in the vertical direction with an upper and lower separation layer sandwiched between the water-retaining plant growth layers,
The water-retaining plant growth layer on the upper side of the upper and lower separation layers leaks downward from the lower surface an aqueous liquid that cannot keep water,
The upper and lower separation layers are intended to allow the aqueous liquid leaked downward from the lower surface of the upper water-retaining plant growth layer to pass downward,
The aqueous liquid that has passed through the upper and lower separation layers can reach the water-retaining plant growth layer below the upper and lower separation layers.
Moreover, the plant cultivating body production method of the present invention comprises:
A method for producing a plant cultivated body having a water-retaining plant growth layer,
Having a laminating step of laminating a plurality of water-retaining plant growth layers in the vertical direction with an upper and lower separation layer sandwiched between the water-retaining plant growth layers;
The water-retaining plant growth layer on the upper side of the upper and lower separation layers leaks downward from the lower surface an aqueous liquid that cannot be retained,
The upper and lower separation layers pass downward the aqueous liquid leaked downward from the lower surface of the upper water-retaining plant growth layer,
The aqueous liquid that has passed through the upper and lower separation layers can reach the water-retaining plant growth layer below the upper and lower separation layers.

  The upper water-retaining plant growth layer and the lower water-retaining plant growth layer are separated by the upper and lower separation layers, and the upper water-retaining plant growth layer contains an aqueous liquid (fertilizer or other substances that cannot be retained). Water that does not contain or contains fertilizer or other substances. Aqueous liquid is also simply referred to as “water” or “moisture”), and the upper and lower separation layers are the upper water-retaining plant. The aqueous liquid that has leaked downward from the lower surface of the growth layer is allowed to pass downward, and the aqueous liquid that has passed downward through the upper and lower separation layers can reach the water-retaining plant growth layer below the upper and lower separation layers.

  Therefore, an aqueous liquid is present on the lower side of the continuous water-retaining plant growth layer, as in the case where the upper water-retaining plant growth layer and the lower water-retaining plant growth layer are continuous vertically. It is prevented from being held unevenly, and the upper and lower water-retaining plant growth layers can sufficiently exhibit their water retention capabilities.

  Excess aqueous liquid that exceeds the water retention limit of the water-retaining plant growth layer above the upper and lower separation layers leaks downward from the lower surface, and the leaked aqueous liquid passes downward through the upper and lower separation layers, below the upper and lower separation layers. Can reach the side water-retaining plant growth layer. In addition, since it is not necessary for the horizontal positions of the upper and lower water-retaining plant growth layers to coincide, there is no lower water-retaining plant growth layer below a part of the upper water-retaining plant growth layer. You can also. In any case, not all of the aqueous liquid leaked downward from the upper water-retaining plant growth layer of the upper and lower separation layers reaches the lower water-retention plant growth layer.

  In this way, the water-retaining plant growth layers stacked one above the other can sufficiently exert their water-retaining power, and excess aqueous liquid exceeding the water retention limit of the upper water-retaining plant growth layer is in the lower water-retaining plant growth layer. Since it can be used, the upper and lower water-retaining plant growth layers are suitable for the growth of plants, respectively, and water can be effectively used as a whole, which is suitable for three-dimensional plant cultivation.

  The water retention plant growth layer needs to have water retention and be suitable for the growth of the target plant.

  The water-retaining plant growth layer on the upper side of the upper and lower separation layers may be any layer that can retain the amount of water required for the growth of the target plant and allows the aqueous liquid that cannot be retained to leak downward from the lower surface. The water-retaining plant growth layer below the upper and lower separation layers can retain the amount of water required for the growth of the target plant, and can receive the aqueous liquid that has passed through the upper and lower separation layers from the upper side and retain it. I just need it. However, it is preferable that each water-retaining plant growth layer is suitable for both the upper and lower sides of the upper and lower separation layers.

  Examples of the water-retaining plant growth layer include irregularly aggregated fibers (the type of fiber is not particularly limited. Various natural fibers such as coconut shell fiber, jute, kenaf, cotton, polyester, polyamide, polyacrylic, etc. A variety of synthetic fibers, or other fibers may be used, in particular, irregularly aggregated fibers, compression-molded, compression-molded, and containing and melting needle punch and binder fibers to form a fiber Those having improved shape retention, nonwoven fabrics, laminated nonwoven fabrics, and other various plant growth materials can be used. The thickness of the water-retaining plant growth layer can be set to 1 to 20 cm, for example. The thickness is preferably 2 to 15 cm, more preferably 3 to 10 cm, but is not limited thereto.

  The water-retaining plant growth layer can have a mat shape.

  Examples of target plants for the water-retaining plant growth layer include turf, sedum, moss and ivy.

  The upper and lower separation layers separate the upper water-retaining plant growth layer and the lower water-retaining plant growth layer vertically, and the aqueous liquid leaked downward from the lower surface of the upper water-retaining plant growth layer downward. It is to pass through. In addition, it is preferable that an up-and-down separation layer is what supports the water retention plant growth layer of the upper side from the lower side.

  A plurality of water-retaining plant growth layers are vertically stacked with an upper and lower separation layer sandwiched between water-retaining plant growth layers because the upper and lower water-retaining plant growth layers at least partially overlap in the horizontal direction. Yes, as long as the upper and lower separation layers are sandwiched between the overlapping portions in the horizontal direction.

  It goes without saying that it has three or more water-retaining plant growth layers, and an upper and lower separation layer can be sandwiched between each water-retention plant growth layer and the water retention plant growth layer below it. In that case, the water-retaining plant growth layer in which the upper and lower separation layers are located on both the upper and lower sides is the water-retaining plant growth layer on the upper side of the upper and lower separation layers with respect to the lower upper and lower separation layers, It is a water-retaining plant growth layer below the upper and lower separation layers for the sex plant growth layer. In the case of having three or more water-retaining plant growth layers and sandwiching an upper and lower separation layer between each water-retention plant growth layer and the lower water-retention plant growth layer, each water-retention plant growth layer and its It is not necessary that the upper and lower separation layers are sandwiched between the upper and lower water-retaining plant growth layers.

  (2) In the plant cultivated body of the present invention, the upper water-retaining plant growth layer and the lower water-retaining plant growth layer may be partially continuous in the upper and lower separation layers.

  In this case, in the upper and lower separation layers, even if the upper water-retaining plant growth layer and the lower water-retention plant growth layer are partially continuous, the aqueous liquid is biased downward in the upper and lower water-retention plant growth layers. If the upper and lower water-retaining plant growth layers are sufficiently capable of exerting their respective water-retaining power, the excess water system that exceeds the water retention limit of the upper water-retaining plant growth layer Since the liquid can be used in the lower water-retaining plant growth layer, the upper and lower water-retaining plant growth layers are suitable for plant growth, and the plant cultivated body can effectively use water as a whole.

  For example, the upper water-retaining plant growth layer and the lower water-retaining plant growth layer are continuous, for example, the upper water-retaining plant growth layer, the lower water-retaining plant growth layer, and a part of the upper and lower separation layers are integrated. In addition to the eggplant, the predetermined member constituting a part of the upper and lower separation layers and the upper and lower water-retaining plant growth layers are in contact with each other, and the upper water-retaining plant growth layer and the lower water-retaining plant growth layer are in the predetermined member. A substantially continuous material can be mentioned. As a material of the predetermined member, for example, the same or equivalent material as the water-retaining plant growth layer can be mentioned.

  The horizontal area of the portion in which the upper water-retaining plant growth layer and the lower water-retaining plant growth layer are continuous can be 1/3 or less of the horizontal area where the upper and lower water-retaining plant growth layers overlap. Preferably it is 1/4 or less, More preferably, it is 1/5 or less, More preferably, it is 0 or more and 1/10 or less.

  (3) In the plant cultivated body of the present invention, all or part of the periphery of the upper water-retaining plant growth layer and the periphery of the lower water-retention plant growth layer are continuously provided by the water-retaining plant growth material. Can be.

  In this case, the upper and lower separation layers for the part where the peripheral part of the upper water-retaining plant growth layer and the peripheral part of the lower water-retaining plant growth layer constituting the surface part of the plant cultivated body are continuous by the water-retaining plant growth material. A plant can be grown on the surface of the plant cultivated body without interruption.

  Even if all or part of the periphery of the upper water-retaining plant growth layer and the periphery of the lower water-retaining plant growth layer are continuous with the water-retaining plant growth material, Of these, the upper water-retaining plant growth layer is prevented so long as the aqueous liquid is prevented from being biased and the upper and lower water-retaining plant growth layers can sufficiently exhibit their water retention capabilities. The excess water-based liquid that exceeds the water retention limit of can be used in the lower water-retaining plant growth layer, so that the upper and lower water-retention plant growth layers are suitable for plant growth, and the plant cultivated body can effectively use water as a whole. It becomes.

  The peripheral part of the upper water-retaining plant growth layer and the part of the peripheral part of the lower water-retaining plant growth layer are, for example, the front part when the front part, rear part, both side parts are present in the plant cultivated body, Or the outer peripheral edge part in the case where the outer peripheral edge part and the inner peripheral edge part exist as the front part and both side parts or the peripheral part can be exemplified.

  The peripheral part of the upper water-retaining plant growth layer and the peripheral part of the lower water-retaining plant growth layer are continuous with the water-retaining plant growth material, for example, the upper water-retaining plant growth layer and the lower part In the case where the water-retaining plant growth layer is integrally formed at the peripheral portion, another member that is in contact with both water-retaining plant growth layers between the upper water-retaining plant growth layer and the lower water-retaining plant growth layer. And the upper water-retaining plant growth layer and the lower water-retention plant growth layer are substantially continuous in the separate member, and the upper water-retention plant growth layer and the lower water-retention plant growth layer The case where the peripheral part and the part between both peripheral parts are covered with another water retention plant growth material can be mentioned.

Examples of the material of the separate member include the same or equivalent material as the water-retaining plant growth layer. Moreover, as an example of another water-retaining plant growth material covering between the peripheral edge and both peripheral edges of the upper water-retaining plant growth layer and the lower water-retaining plant growth layer, a fiber material (for example, a nonwoven fabric, a woven fabric, It is an amorphous material containing a fiber material made of crushed pieces obtained by pulverizing a knitted fabric, a fiber material made of irregularly assembled fibers, or other fiber materials) and a binder (for example, a synthetic resin binder or other binder). In addition, there may be mentioned those that become a regular product by solidifying the binder. It is desirable that such an amorphous material has adhesiveness to the water-retaining plant growth layer, or the members constituting the upper and lower separation layers and the water-retention plant growth layer. Moreover, it is desirable that such an indeterminate material contains a water retention agent such as a water retention resin (for example, a crosslinked sodium salt of an acrylic acid polymer).
In the plant cultivated body of the present invention, the peripheral part of the upper water-retaining plant growth layer and the peripheral part of the lower water-retaining plant growth layer and the peripheral part thereof contain the fiber material and the binder as described above. The amorphous product may be covered with a water-retaining plant growth material that has become a fixed product by solidifying the binder.
Moreover, the plant cultivating body production method of the present invention includes a fiber material, as described above, between the peripheral edge of the upper water-retaining plant growth layer and the peripheral edge of the lower water-retaining plant growth layer and both peripheral edges. A coating step of covering with an irregular shape containing a binder;
A water-retaining plant that covers the periphery of the upper water-retaining plant growth layer, the peripheral portion of the lower water-retaining plant growth layer, and both peripheral portions by the amorphous product becoming a fixed product by solidifying the binder. It can have a solidification process which forms a growth material.
In this plant cultivated body, an irregular shape containing a fiber material and a binder is formed between the periphery of the upper water-retaining plant growth layer and the periphery of the lower water-retention plant growth layer and between both peripheral portions. By covering with a water-retaining plant growth material that has become a fixed shape by solidification, the surface shape can be appropriately adjusted.
The plant cultivating body manufacturing method covers the periphery of the upper water-retaining plant growth layer, the peripheral portion of the lower water-retention plant growth layer, and both peripheral portions after the coating step and before the solidification step. It may have a protection process of covering the surface portion of the amorphous material with a flexible protection net.
In this case, the plant cultivated body has a surface portion of the water-retaining plant growth material covered with a flexible protective net.
The protective net is a period between the peripheral part of the upper water-retaining plant growth layer and the peripheral part of the lower water-retaining plant growth layer and the amorphous part covering both peripheral parts until it becomes a fixed product by solidification of the binder. This is for protecting the irregular shaped object so as to prevent the occurrence of inconvenience such as deformation or dropping of the irregular shaped object. The protective net can be formed of various materials such as various synthetic fibers and natural fibers, synthetic resin, synthetic rubber, metal, or a combination of these materials. The mesh can be used to prevent the occurrence of inconveniences such as deformation and dropping of the irregular shaped material until the irregular shaped material becomes a regular shaped material due to the solidification of the binder, and does not hinder the growth of the plant. Good.

  (4) In the plant cultivated body of the present invention, the upper and lower separation layers separate the upper water-retaining plant growth layer and the lower water-retaining plant growth layer vertically, and the upper water-retaining plant growth layer. By preventing the aqueous liquid that leaks from the lower side to pass downward without holding it, the aqueous liquid in the upper water-retaining plant growth layer and the aqueous liquid in the lower water-retaining plant growth layer are prevented from continuing It can be.

  In this case, the upper and lower separation layers separate the upper and lower water-retaining plant growth layers up and down and pass downward without holding the aqueous liquid that leaks downward from the upper water-retaining plant growth layer. Since the water-based liquid in the upper water-holding plant growth layer and the water-based liquid in the lower water-holding plant growth layer are prevented from continuing, each water-holding plant growth layer exhibits its water holding power sufficiently, Excess aqueous liquid exceeding the water retention limit of the sex plant growth layer can be released downward from the water retention plant growth layer, and can be received by the lower water retention plant growth layer via the upper and lower separation layers.

  Examples of such an upper / lower separation layer include a rigid material such as a slat-like structure, a net-like structure (including punching metal), or a lattice-like structure, a space, or a combination thereof. it can. Examples of the material constituting the upper and lower separation layers made of a structure such as a slat-like structure, a net-like structure, and a lattice-like structure include metals such as stainless steel and aluminum, various synthetic resins, ceramics, and the like.

  (5) The plant cultivated body of the present invention has a support structure that supports the upper and lower separation layers, and the upper and lower separation layers supported by the support structure support the upper water-retaining plant growth layer. can do.

  In this case, a three-dimensional plant cultivated body has a support structure that supports the upper and lower separation layers, and the upper and lower separation layers supported by the support structure support the upper water-retaining plant growth layer. Can be configured.

  Examples of such support structures include vertical columns, support walls, and support frames that directly support the structures that constitute the upper and lower separation layers, as well as beam members supported by the columns, support walls, and support frames. The thing which supports the structure which comprises a separated layer can be mentioned.

  (6) Further, the plant cultivating body of the present invention has a water retaining plant when the water retaining plant growing layer is located below the lower surface of the water retaining plant growing layer where the water retaining plant growing layer is present below. A water-conducting means (for example, a leaked water-based liquid that guides a water-based liquid leaked downward from a portion of the lower surface of the vegetative plant-growing layer where the water-retaining plant growing layer is not located below to the water-retaining water-growing plant growing layer) And a groove-shaped water guide portion that leads to the lower water-retaining plant growth layer.

  In this case, it is an aqueous liquid that has exceeded the water retention limit of the upper water-retaining plant growth layer and has been released downward from the water-retention plant growth layer, and the water-retention plant growth layer below the lower surface of the water-retention plant growth layer Since the water-based liquid leaked downward from the portion where no is located is guided to the water-retaining plant growth layer below by the water guiding means, the water can be effectively used as a whole, which is suitable for three-dimensional plant cultivation.

  In the plant cultivated body of the present invention and the plant cultivated body obtained by the production method of the present invention, the excess aqueous liquid that exceeds the water retention limit of the water retaining plant growth layer on the upper side of the upper and lower separation layers leaks downward from the lower surface, The leaked aqueous liquid passes through the upper and lower separation layers downward, and can reach the water-retaining plant growth layer below the upper and lower separation layers. Therefore, the water-retaining plant growth layers stacked one above the other can fully demonstrate their water-retaining power, and excess aqueous liquid that exceeds the water retention limit of the upper water-retaining plant growth layer is used in the lower water-retaining plant growth layer. Therefore, the upper and lower water-retaining plant growth layers are suitable for the growth of plants, respectively, and can effectively utilize water as a whole, which is suitable for three-dimensional plant cultivation.

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

  1 to 3 are cross-sectional views of a plant cultivated body showing an example of an embodiment of the present invention. 1 to 3 denote the same parts.

  Each plant cultivated body A includes a large number of water-retaining plant growth layers 10, a large number of upper and lower separation layers 20, a large number of supports 30, and irrigation pipes 40 for the respective upper and lower separation layers 20. An upper and lower separation layer 20 is sandwiched between each water-retaining plant growth layer 10 and the lower water-retaining plant growth layer 10, and the lower side and the mounting surface B of the water-retaining plant growth layer 10 at the lower end. The upper and lower separation layers 20 are also located between the two.

  The water-retaining plant growth layer 10 is mainly composed of a waste fabric waste knitted with fibers containing about 80% polyester-based synthetic fibers and processed into a fiber, and has a low melting point. A fiber assembly in which polyester fibers (for example, about 20% by weight of the total) are mixed and dispersed as binder fibers and three-dimensionally assembled to a predetermined thickness is heated to a temperature at which the binder fibers melt. Post-press (pressed to a thickness of about 25% of the aggregated thickness of the fibers), the binder fibers were cooled and cured to bond the fibers together, and innumerable voids were formed between the fibers The mat shape obtained in the state is formed.

Each of the upper and lower separation layers 20 mainly includes a metal lattice structure 22. A part of the upper and lower separation layers (for example, the front end side, that is, the left end side in the drawing) may be a space. Each lattice structure 22 is supported by a metal support 30 (a column or a support wall) provided at a base end portion (right end portion in the figure) of the lower lattice structure 22. Each water-retaining plant growth layer 10 is supported on a lattice-like structure 22 in an upper and lower separation layer 20 on the lower side.
In the example of FIGS. 1 and 2, the irrigation pipe having a large number of small holes for sprinkling at a position about two thirds of the horizontal direction from the base end of the lattice-like structure 22 constituting each of the upper and lower separation layers 20. 40 is provided.
In the example of FIG. 3, about two-thirds of each of the upper and lower separation layers 20 in the horizontal direction is configured by the lattice structure 22, and about one-third is configured by a space. The irrigation pipe 40 having a large number of small holes for watering is provided at the tip of the lattice structure 22 in each of the upper and lower separation layers 20.

  In the example of FIGS. 1 and 3, the upper water-retaining plant growth layer 10 and the lower water-retaining plant growth layer 10 are positioned so as to partially overlap each other in the horizontal direction. In the example of FIG. The entire upper water-retaining plant growth layer 10 is positioned on the lower water-retaining plant growth layer 10.

  The plant cultivated body A in FIGS. 1 and 3 is such that the base end portions (right end portions in the drawings) of the water-retaining plant growth layers 10 and the upper and lower separation layers 20 are along the inclined wall surface C, and the plant in FIG. The cultivated body A is formed such that the base end portions (right end portions in the figure) of the water-retaining plant growth layers 10 and the upper and lower separation layers 20 are along the vertical wall surface D. Although many water-retaining plant growth layers 10 in the plant cultivating body A in FIGS. 1 and 3 are identical to each other, the water-retaining plant growth layer 10 in the plant cultivating body A in FIG. The thing has a longer depth (dimension in the left-right direction in FIG. 2), and the upper one has a shorter depth.

  Each of the plant cultivated bodies A in FIGS. 1 to 3 is inclined so that the surface portion (left side portion in the figure) is reduced upward (reduced to the right side in the figure), but the present invention is not limited to this. For example, the surface portion may be vertical, and the surface portion may be inclined so as to expand upward (enlarge to the left in the figure). Moreover, each water retention plant growth layer 10 and the upper and lower separation layer 20 do not necessarily need to follow a wall surface.

In the plant cultivating body A in FIGS. 1 and 2, the tip portion (left end portion in the figure) of the water-retaining plant growth layer 10 stacked one above the other is a fiber material made of crushed pieces of nonwoven fabric, a water-retaining resin, and a synthetic resin binder. The binder contained in the amorphous material is covered with a flexible protective net 52 made of synthetic fiber and further prevented from being deformed or dropped off. The shape of the surface is adjusted by being covered with the plant growth material 50 which has been solidified and has a fixed overall shape. Such an amorphous plant growth material 50 can contain seeds and fertilizers of plants to be grown.
In addition, for example, when the space | interval between the front-end | tip parts of the water retention plant growth layer 10 laminated | stacked up and down is a space, it can also be assumed that the amorphous plant growth material 50 was filled also into the part.

  Moreover, as shown in FIG. 3, the lower water-retaining plant growth layer is formed on the portion (left end portion in the figure) constituting the surface portion of the plant cultivated body A among the water-retention plant growth layers 10 stacked in the vertical direction. By having the downward protrusion part 12 which touches the upper surface of 10, the part which comprises the surface part of the plant cultivating body A among the water-retaining plant growth layers 10 can be made substantially continuous vertically.

  Water supply when growing a plant such as turf on the surface portion (left end portion in the figure) of the plant cultivating body A in FIGS. 1 to 3 is, for example, water supply using an irrigation pipe 40 in addition to watering or rainfall from above. (Water supplied from a water supply or rainwater storage tank, or water supplied to the irrigation pipe 40 by supplying water to the water receiving section). Water containing fertilizers can also be supplied. As the irrigation pipe 40, for example, one having a large number of small holes for watering or one made of a porous material can be used.

  The upper water-retaining plant growth layer 10 and the lower water-retaining plant growth layer 10 are vertically separated by the upper and lower separation layers 20. The water supplied to the water-retaining plant growth layer 10 above the upper and lower separation layers 20 is retained in the water-retaining plant growth layer 10, and the water that cannot be retained is downward from the lower surface of the water-retaining plant growth layer 10. Leak. The upper and lower separation layers 20 allow water leaked downward from the lower surface of the upper water-retaining plant growth layer 10 to pass downward, and the water in the upper water-retaining plant growth layer 10 and the lower water retention property are passed. It prevents that the water in the plant growth layer 10 continues. The water that has passed through the upper and lower separation layers 20 can reach the water-retaining plant growth layer 10 below the upper and lower separation layers 20.

  Therefore, the lower side of the upper and lower continuous water-retaining plant growth layers 10 as in the case where the upper water-retaining plant growth layer 10 and the lower water-retaining plant growth layer 10 are vertically continuous. Thus, the water is prevented from being biased and the upper and lower water-retaining plant growth layers 10 can sufficiently exhibit their water retention capabilities.

  Excess water exceeding the water retention limit of the water retention plant growth layer 10 above each upper and lower separation layer 20 leaks downward from the lower surface, and the leaked water passes downward through the upper and lower separation layers 20 and the upper and lower separation layers. 20 lower water-retaining plant growth layer 10 can be reached.

  Therefore, the water-retaining plant growth layers 10 stacked one above the other can sufficiently exert their water retention power, and excess water exceeding the water retention limit of the upper water-retention plant growth layer 10 is in the lower water-retention plant growth layer 10. Since it can be utilized, the upper and lower water-retaining plant growth layers 10 are suitable for plant growth and can effectively utilize water as a whole, which is suitable for three-dimensional plant cultivation.

  It should be noted that the dimensions, number, material, shape, relative arrangement, etc. of the component parts in the description of the above embodiments are limited to the scope of the present invention unless otherwise specified. It is not intended to be limiting, but merely an illustrative example.

It is sectional drawing of a plant cultivation body. It is sectional drawing of another plant cultivation body. It is sectional drawing of another plant cultivation body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Water-retaining plant growth layer 12 Lower protrusion part 20 Upper and lower separation layer 22 Grid-like structure 30 Support body 40 Irrigation pipe 50 Amorphous plant growth material 52 Protection net | network A Plant cultivation body B Mounting surface C Inclined wall surface D Vertical wall surface

Claims (11)

A plant cultivated body with a water-retaining plant growth layer,
A plurality of water-retaining plant growth layers are stacked in the vertical direction with an upper and lower separation layer sandwiched between the water-retaining plant growth layers,
The water-retaining plant growth layer on the upper side of the upper and lower separation layers leaks downward from the lower surface an aqueous liquid that cannot keep water,
The upper and lower separation layers are intended to allow the aqueous liquid leaked downward from the lower surface of the upper water-retaining plant growth layer to pass downward,
The plant cultivated body, wherein the aqueous liquid that has passed through the upper and lower separation layers can reach the water-retaining plant growth layer below the upper and lower separation layers.   The plant cultivated body according to claim 1, wherein in the upper and lower separated layers, the upper water-retaining plant growth layer and the lower water-retaining plant growth layer are partially continuous.   The plant cultivated body according to claim 1, wherein all or part of the peripheral edge of the upper water-retaining plant growth layer and the peripheral edge of the lower water-retaining plant growth layer are continuous with the water-retaining plant growth material.   Between the peripheral part of the upper water-retaining plant growth layer and the peripheral part of the lower water-retaining plant growth layer and between both peripheral parts, the amorphous material containing the fiber material and the binder became a fixed product by solidifying the binder. The plant cultivated body according to claim 1, which is covered with a water-retaining plant growth material.   The plant cultivated body according to claim 4, wherein a surface portion of the water-retaining plant growth material is covered with a flexible protective net.   The upper and lower separation layers separate the upper water-retaining plant growth layer and the lower water-retaining plant growth layer up and down, and do not hold the aqueous liquid that leaks downward from the upper water-retaining plant growth layer The water system liquid in the upper water-retaining plant growth layer and the water system liquid in the lower water-retention plant growth layer are prevented from continuing by passing through the lower part of the water retention plant growth layer. The plant cultivated body described.   The support structure for supporting the upper and lower separation layers is provided, and the upper and lower separation layers supported by the support structure support the upper water-retaining plant growth layer. The plant cultivated body described.   The plant cultivated body according to any one of claims 1 to 7, wherein the water-retaining plant growing layer has a mat shape composed of fibers assembled irregularly. A method for producing a plant cultivated body having a water-retaining plant growth layer,
Having a laminating step of laminating a plurality of water-retaining plant growth layers in the vertical direction with an upper and lower separation layer sandwiched between the water-retaining plant growth layers;
The water-retaining plant growth layer on the upper side of the upper and lower separation layers leaks downward from the lower surface an aqueous liquid that cannot be retained,
The upper and lower separation layers pass downward the aqueous liquid leaked downward from the lower surface of the upper water-retaining plant growth layer,
The method for producing a plant cultivating body, wherein the aqueous liquid that has passed through the upper and lower separation layers can reach the water-retaining plant growth layer below the upper and lower separation layers. A covering step of covering the periphery of the upper water-retaining plant growth layer and the periphery of the lower water-retaining plant growth layer and the peripheral portions with an amorphous material containing a fiber material and a binder;
A water-retaining plant that covers the periphery of the upper water-retaining plant growth layer, the peripheral portion of the lower water-retaining plant growth layer, and both peripheral portions by the amorphous product becoming a fixed product by solidifying the binder. The plant cultivation body manufacturing method of Claim 9 which has the solidification process which forms a growth material.   After the coating step, before the solidification step is completed, the peripheral portion of the upper water-retaining plant growth layer, the peripheral portion of the lower water-retaining plant growth layer, and the surface portion of the irregular shape covering between both peripheral portions are allowed. The plant cultivation body manufacturing method of Claim 10 which has a protection process covered with a flexible protection net | network.

Images