JPH11155380A - Bed for culturing plant - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a bed for culturing plants made containable water by disposing a drained liquid-receiving sheet below a culture medium-receiving sheet in a state that one side edge of the drained liquid-receiving sheet may vertically be moved. SOLUTION: This bed 1 for culturing plants is provided with a culture medium-receiving sheet 5 set at a prescribed height and used for charging a culture medium. Therein, a drained liquid-receiving sheet 6, where at least one side edge of the sheet 6 is vertically movably disposed, is set below the culture medium-receiving sheet 5. The first and second fixed pipes 31, 32 are approximately horizontally disposed at a prescribed height in a substantially mutually facing posture through approximately vertically disposed support pipes 21, 22, and a movable pipe movably supported in the vertical direction is also disposed through the support pipes 21, 22. Both the side edges of the culture medium-receiving sheet 5 are fixed to the first and second fixing pipes 31, 32. One side edge of the drained liquid-receiving sheet 6 may be fixed to the first fixed pipe, while the other side edge may be fixed to the movable pipe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a bed for plant cultivation.

[0002]

2. Description of the Related Art Conventionally, as a plant cultivation bed, for example, a plant cultivation bed 100 as shown in FIG. 4 has been used. In this plant cultivation bed 100, fixed pipes 310, 320 are disposed substantially horizontally and substantially opposed to each other on support pipes 210, 220 erected on both sides, and fixed pipes 310, 320. Between the drain hole 51
A medium receiving sheet 500 having 0 is provided. The upper surface of the medium receiving sheet 500 is filled with the medium 110,
The drainage 120 drained from the culture medium 110 is
10 and is collected by a gutter 700 provided below the culture medium receiving sheet 500.

[0003] By the way, the culture medium such as soil and rock wool used here usually becomes unsuitable for good cultivation after a period of use of one to two years has accumulated undesired substances.
Therefore, in order to make the medium last longer than the above-mentioned use period, the medium is once completely immersed in water at an appropriate time, and then the water is drained, and disinfection for killing various bacteria in the medium is performed.

[0004]

However, the plant cultivation bed 100 shown in FIG. 4 is arranged above the gutter 700 for receiving the drainage of the culture medium 110, so that even if the water flows, the bed for cultivating the plant 100 is quickly provided. Because it flows out from the drainage hole 510,
With this plant cultivation bed 100, it was practically impossible to perform the above-mentioned liquid filling operation. For this reason, the medium 110 used is usually disposable in a cycle of one to two years.

[0005] The present invention has been made in view of the above points, and a plant cultivation bed of a type in which a medium is provided at a predetermined height away from the ground, in which it is easy to maintain a favorable rhizosphere environment, An object of the present invention is to provide a plant cultivation bed capable of performing a filling operation.

[0006]

Means for Solving the Problems In order to achieve the above object, a plant cultivation bed of the present invention comprises a plant cultivation bed provided with a medium receiving sheet for filling a culture medium, which is provided at a predetermined height. A drain receiving sheet is provided below the medium receiving sheet and at least one side edge thereof is provided so as to be vertically movable.

[0007] In this case, at least one of first and second fixed pipes disposed substantially horizontally at a predetermined height and substantially opposite to each other via a support pipe installed substantially vertically. A movable pipe disposed in a positional relationship that is substantially parallel to the one fixed pipe, and supported by a support pipe supporting the one fixed pipe so as to be movable in the vertical direction. The medium receiving sheet has its side edges fixed to the first fixed pipe and the second fixed pipe, respectively, and the drainage receiving sheet has one side edge formed by the first fixed pipe. And the other side edge is fixed to the movable pipe.

It is preferable that a discharge port is formed at an appropriate position of the drainage receiving sheet, and a discharge pipe is connected to the discharge port.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings. In the figure, 1
Is a bed for plant cultivation according to the present embodiment, and includes a support pipe 2, a first fixed pipe 31, and a second fixed pipe 3
2. It has a movable pipe 4, a medium receiving sheet 5 and a drainage receiving sheet 6.

The support pipe 2 is installed substantially vertically. More specifically, one side of the support pipe 21 and the other side of the support pipe 22 are provided so as to be substantially opposed to each other with a predetermined interval therebetween, and each of them is arranged at a predetermined interval on a straight line. There are multiple installations.

A plurality of first fixed pipes 31 are provided on the one side of the support pipes 21 so as to extend substantially horizontally over the plurality of the support pipes 21 on the one side. A plurality of second fixed pipes 32 are provided on the upper part of the support pipe 22 on the other side.
The bridge is arranged almost horizontally. Therefore, the first fixed pipe 31 and the second fixed pipe 32 are disposed substantially horizontally at a predetermined height and substantially opposed to each other.

The second fixed pipe 32 is supported via a substantially L-shaped joint member 8 extending inward from the upper end of the other side support pipe 22. This allows
Since a gap is formed between the vicinity of the distal end of the joint member 8 and the column pipe 22 on the other side, the movable pipe 4 described below can be moved until it is positioned in the gap.

The movable pipe 4 is a support pipe 2 on the other side.
2, a plurality of the other side support pipes 2, which are arranged at least substantially in parallel with the second fixed pipe 32.
2 and is movably arranged in the vertical direction along the column pipe 22 on the other side. In particular,
A ring-shaped engaging member 41 is provided around each of the support pipes 22 on the other side, and the movable pipe 4 is held by a pipe holding portion formed on the engaging member 41. A positioning ring 42 having a set screw 43 is disposed below the engaging member 41 and around each of the support pipes 22 on the other side. By tightening the set screw 43, the positioning ring 42 Is fixed at an arbitrary position, and the position of the engaging member 41 whose lower end surface is in contact with the upper end surface of the positioning ring 42 and the position of the movable pipe 4 held by the engaging member 41 are also fixed. become.

The medium receiving sheet 5 includes the first fixed pipe 3
Between the first and second fixed pipes 32, the two side edges are respectively formed so as to have a substantially concave cross section, that is, a low portion near the center and a high portion on both sides. Are fixed to the fixed pipe 31 and the second fixed pipe 32 by the sheet stopper 9 (see FIG. 3).

[0015] The medium receiving sheet 5 arranged as described above.
Is filled with a medium 11 such as soil or rock wool. A drain hole 51 is formed in the vicinity of the center of the medium receiving sheet 5, and during culture, excess culture solution that has passed through the medium 11, that is, the drain solution 12, is discharged from the drain hole 51. It is discharged onto the drainage receiving sheet 6 described below.
The drainage hole 51 may be in the form of a hole or a slit. Depending on the type of the culture medium 11, the diameter of the hole is usually about 1 mm or more if it is a hole, and if it is a slit. Preferably, the slit width is about 1 mm or more in diameter.
Note that the upper limit varies depending on the type of the medium 11,
It is preferable that a part of 1 does not fall. Further, as the culture medium receiving sheet 5, a conventionally known waterproof plastic film or the like can be used. In addition, an impervious porous sheet that allows liquid to pass through but inhibits the passage of plant roots (for example, Seiwa Co., Ltd .:
The product name "Luton") can also be used. In this case, it is advantageous in that it is not necessary to separately provide a drainage hole.
However, this porous sheet has a hole having a diameter of about 30 to about 5
When soil is used as a culture medium, the clogging is likely to occur because soil is very small, that is, 0 μm. Therefore, it is preferable to use a waterproof plastic film having drainage holes 51 formed thereon as described above.

The drainage receiving sheet 6 is made of a waterproof plastic film or the like. The lower side of the medium receiving sheet 5 has one side edge 61 fixed to the first fixing pipe 31 and the other side end. The rim 62 is fixed to the movable pipe 4 and disposed. During the normal cultivation, the drainage receiving sheet 6 slides the movable pipe 4 downward along the support pipe 22 on the other side, so that the other side edge 62 is larger than the one side edge 61. It is arranged to be located at a low place (see FIG. 2). As a result, a space 13 is formed between the culture medium receiving sheet 5 and the drainage receiving sheet 6. This space 13
, The air always flows, so that a favorable rhizosphere environment can be maintained. For example, oxygen is supplied to the rhizosphere through the drainage hole 51 formed in the medium receiving sheet 5,
A lack of oxygen in the rhizosphere can be prevented. This space 1
3, the drainage 12 passing through the culture medium 11
The amount of the culture solution supplied to the culture medium 11 can be easily adjusted. Further, as described above,
Since the culture medium receiving sheet 5 and the drainage receiving sheet 6 are separated from each other, the drainage liquid 12 discharged from the culture medium 11 is again
1 and can prevent root rot of the cultivated plant due to accumulation of excess culture solution in the medium 11.

When the liquid receiving sheet 6 is flooded, the movable pipe 4 is slid upward along the column pipe 22 on the other side so that the other side edge 62 is moved to one side. It is disposed so as to be located at substantially the same height as the end edge 61, that is, at substantially the same height as the disposition position of the second fixed pipe 32 (see FIG. 1). As a result, since the drainage receiving sheet 6 is arranged so as to wrap the medium receiving sheet 5 from the lower surface of the medium receiving sheet 5, the medium receiving sheet 5
Water 14 for washing the culture medium 11 can be promptly stored up to the upper surface of the culture medium 11 disposed above.

The drainage receiving sheet 6 has a drainage 12 accumulated in the drainage receiving sheet 6 or a water 1 having washed the culture medium 11.
4 to the outside, the discharge port 15
Is provided. A discharge pipe 16 is connected to the discharge port 15 as a passage for discharging the drainage 12 and the like to the outside. In the present embodiment, as shown in FIG. 3, a discharge port 15 is formed at one end of the drainage receiving sheet 6, and the discharge port 15 has a first discharge port extending downward from the discharge port 15. A discharge pipe 16 comprising a pipe 16a and an end 16c of the first discharge pipe 16a inserted from one end side, and a second discharge pipe 16b having the other end buried in the ground 17. Is connected. If the drain pipes 16 are connected to each other and extended, the drain liquid can be easily collected in a drain liquid storage tank (not shown).

The reason why the discharge pipe 16 is composed of the two pipe members as described above is that the length of the discharge pipe 16 can be freely expanded and contracted in accordance with the height at which the liquid receiving sheet 6 is arranged. It is. That is, during normal cultivation, the drainage receiving sheet 6
Since the (discharge port 15 formed in the drain receiving sheet 6) is located at a low place, the end 16c of the first discharge pipe 16a is inserted deeply into the second discharge pipe 16b, and the discharge pipe 16 Becomes shorter as a whole (see FIG. 2). On the other hand, at the time of liquid filling, the drainage receiving sheet 6 (discharge port 15 formed in the drainage receiving sheet 6) is located at a high place, so that the first discharge pipe 1
The end 16c of 6a is inserted shallowly into the second discharge pipe 16b, and the length of the discharge pipe 16 is increased as a whole (see FIG. 1).

The plant cultivation bed 1 configured as described above is used as follows. That is, during normal cultivation, the movable pipe 4 is connected to the support pipe 22 on the other side.
Slide downward along the drainage receiving sheet 6
Are used such that the other side edge 62 is positioned lower than the one side edge 61 (see FIG. 2). On the other hand, at the time of flooding, first, the movable pipe 4 is slid upward along the support pipe 22 on the other side,
The drainage receiving sheet 6 is set so that the other side edge 62 is substantially the same height as the one side edge 61, that is, the second fixed pipe 32.
Is arranged so that it is almost at the same height as the arrangement position of. Then, the water 14 is injected to the upper surface of the culture medium 11 so that the upper surface of the drainage receiving sheet 6 is filled with the water 14, and the liquid is filled (see FIG. 1).

The plant cultivation bed 1 of the present invention is, of course, not limited to the above embodiment. For example, in the above-described embodiment, only the other side edge 62 of the drainage receiving sheet 6 is connected to the movable pipe 4 so as to be able to move up and down and to be close to the medium receiving sheet 5. May also be provided on one of the support pipes 21 so that the one side edge 61 side can be moved up and down together with the other side edge 62 side.

Further, the drainage receiving sheet 6 is
It is also possible to directly connect to the engaging member 41 which moves up and down without going through. Further, means for supporting the culture medium receiving sheet 5 at a predetermined height are also provided by the support pipes 21 and 22 and the fixed pipes 31 and 22.
The structure is not limited to the structure using 32, and may be, for example, suspended and supported from above the greenhouse.

[0023]

According to the bed for plant cultivation of the present invention, the drainage receiving sheet is disposed below the medium receiving sheet provided at a predetermined height, and at least one side edge is up and down. It is movably provided. Therefore, during normal cultivation, by arranging the drainage receiving sheet so as to be located at a low place, a favorable rhizosphere environment can be given to the cultivated plant. Further, at the time of filling, it is possible to perform the filling operation by adjusting the drain receiving sheet so as to approach the medium receiving sheet.

[Brief description of the drawings]

FIG. 1 is a front view showing a use mode of a bed for cultivating a plant according to an embodiment of the present invention at the time of flooding.

FIG. 2 is a front view showing a mode of use during normal cultivation of the plant cultivation bed according to the embodiment.

FIGS. 3A and 3B are diagrams showing a plant cultivation bed according to the embodiment, wherein FIG. 3A is a partial plan view and FIG. 3B is a right side view.

FIG. 4 is a front view showing an example of a conventional plant cultivation bed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bed for plant cultivation 2 Prop pipe 21 Prop pipe on one side 22 Prop pipe on the other side 31 First fixed pipe 32 Second fixed pipe 4 Movable pipe 41 Engaging member 42 Positioning ring 43 Set screw 5 Medium Receiving sheet 51 Drainage hole 6 Drainage receiving sheet 8 Joint member 9 Sheet stopper 11 Medium 12 Drainage 13 Space 14 Water 15 Discharge port 16 Discharge pipe 17 Ground

Claims (3)

[Claims] 1. A plant cultivation bed provided with a medium receiving sheet for filling a medium installed at a predetermined height, wherein at least one side edge below the medium receiving sheet is vertically movable. A plant cultivation bed having a drainage receiving sheet provided. 2. A first and a second fixed pipe arranged substantially horizontally at a predetermined height and substantially opposite to each other via a support pipe installed substantially vertically, and at least one of them. A movable pipe that is arranged in a positional relationship that is substantially parallel to the fixed pipe, and is supported movably in the vertical direction through a support pipe that supports the one fixed pipe, Each side edge of the culture medium receiving sheet is fixed to the first fixed pipe and the second fixed pipe, respectively, and the drainage receiving sheet has one side edge to the first fixed pipe. The plant cultivation bed according to claim 1, wherein the bed is fixed and the other side edge is fixed to the movable pipe. 3. The plant cultivation bed according to claim 1, wherein a discharge port is formed at an appropriate position of the drainage receiving sheet, and a discharge pipe is connected to the discharge port.