JPH04144621A - Apparatus for water culture - Google Patents

Abstract

PURPOSE:To simply and readily enable practice of operation or treatment to fit a culture medium substance in a liquid suction unit by forming the upper part of the liquid suction unit having a hollow part into an upward opened tapered shape and holding the culture medium substance in the tapered part. CONSTITUTION:A cultivation panel 1 is placed on the top surface of a cultivation bed 10 for supplying and feeding a water culture solution 9 and a culture medium substance 3 is simultaneously supported with the cultivation panel 1 to rear a crop. A liquid suction unit 2 for connecting one end thereof to the culture medium substance 3 is formed into a cylindrical shape and inserted into the water culture solution 9 on the bottom side of the cultivation bed 10. Furthermore, the upper part of the liquid suction unit 2 having a hollow part is formed into an upward opened tapered part (2a) and the culture medium substance 3 is held in the tapered part (2a). As a result, operation or treatment to fit the culture medium substance in the liquid suction unit can simply and readily be carried out. The contact area and extent of adhesion between the liquid suction unit and the culture medium substance can be improved to maintain the interior of the hollow part in the liquid suction unit in the optimum growth environment.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a hydroponic cultivation apparatus for growing crops such as tomatoes and cucumbers.

(B) Prior Art Conventionally, a technique has been known in which a cultivation panel is placed on a cultivation bed, and crop seedlings are planted and grown on the cultivation panel.

For example, there is a technique described in Japanese Patent Publication No. 50-29972.

(C) Problems to be Solved by the Invention In the prior art described above, the liquid level of the hydroponic solution placed in the cultivation bed was brought close to the cultivation panel, so that most of the roots of the crops were immersed in the hydroponic solution. As a result, it became necessary to perform aeration operations intermittently.

Therefore, in order to eliminate this problem, the liquid level of the hydroponic solution put into the cultivation bed 7 is lowered than before, and the block-shaped culture medium in which crops are planted is fitted and supported on the cultivation panel. At the same time, one end of the rod-shaped suction body is embedded in the culture medium, the suction body is extended to the bottom surface of the cultivation panel and immersed in the hydroponic liquid, and the hydroponic liquid is supplied to the culture medium through the liquid suction body, thereby cultivating crops. A technology has been developed to foster this.

However, only the roots near the liquid suction body develop well, while the roots located away from the liquid suction body tend to wither due to lack of humidity and become stunted. Because it is embedded, primary roots inside the culture medium are easily damaged by the insertion of the liquid suction body, and there are also problems in that the liquid suction body falls off from the medium body and clogs the drainage hole.

The present invention solves these problems of the prior art.

(d) Means for Solving the Problems The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be explained.

A cultivation panel l is placed on the top surface of the cultivation bed 10 that supplies the hydroponic solution 9.
In a hydroponic cultivation apparatus for growing crops by placing 1 or 2 of the culture medium and supporting the culture medium 3 on the cultivation panel 1, the liquid suction body 2 having one end connected to the medium body 3 is configured in a cylindrical shape. The liquid suction body 2 is inserted into the hydroponic liquid 9 on the bottom side of the cultivation bed 10, and the upper part of the liquid suction body 2 having a hollow part is formed into an upwardly opening tapered part 2a, and a culture medium 3 is inserted into the tapered part 2a. is maintained.

(E) Embodiment The problems to be solved by the present invention and the means for solving them are as described above.Next, the structure of the embodiment shown in the attached drawings will be explained.

FIG. 1 is a side cross-sectional view of the hydroponic cultivation apparatus of the present invention, FIG. 2 is an enlarged side cross-sectional view of the liquid suction body 2 of the present invention, and FIG. FIG. 4 is a side view of only the liquid suction body 2, FIG. FIG. 7 is a side sectional view of an embodiment in which the lower part of the liquid suction body 2 is configured in a disk shape, and FIG. 8 is the same (perspective view, FIG. 9 is a perspective view of the liquid suction body 2 in a state in which it is placed, and FIG. 10 is a perspective view of an embodiment in which an elastic material portion is provided on the upper part of the liquid suction body 2.

The overall configuration of the hydroponic cultivation apparatus will be explained with reference to FIG.

It includes a cultivation bed 10 that supplies a hydroponic solution 9, and a liquid tank 4 that mixes liquid fertilizer or the like in a fertilizer tank 5 with water to form the hydroponic solution 9. Hydroponic liquid 9 is configured to be circulated between liquid tank 4 and cultivation bed 10 via water pipe 6, drain pipe 7, and circulation pump 8.

Further, the cultivation panel 1 is placed on the upper surface of the cultivation bend 10, and the block-shaped culture medium 3 is fitted into the transplant hole 11 of the cultivation panel 1 from above.

When the culture medium 3 is fitted into the transplant hole 11 of the cultivation panel I, the liquid suction body 2 of the present invention is interposed between the culture medium 3 and the transplant hole II.

The liquid suction body 2 itself is made of a water-absorbing material, and is made of a cylindrical cloth or plate made of a porous material such as nonwoven fabric, gauze, recycled paper, or the like.

A culture medium 3 is fitted onto the upper part of the liquid suction body 2 made of the water-absorbing material, and the liquid suction body 2 is inserted into the transplant hole 11 of the cultivation panel 1 and held so as not to fall off. That's what I'm doing.

The liquid suction body 2 has a cylindrical portion extending below the cultivation panel 1, and the roots C of the crop are extended inside the cylindrical portion. The leaf part a and the stem part of the crop are made to extend above the culture medium 3.

Then, the lower end of the downwardly protruding cylindrical portion of the liquid suction body 2 is immersed below the liquid level of the hydroponic liquid 9, and the hydroponic liquid 9 is supplied to the culture medium 3 via the liquid suction body 2. There is. As a result, the inside of the cylindrical hollow part of the liquid suction body 2 is kept in a high humidity state.

The present embodiment is constructed as described above, and during the sowing and germination work, the medium 3 is sown and germinated in a continuous mat state, and the seedlings are spread over the medium 3 to an extent. later,
Separate the culture medium 3 from the mantle individually, divide it into individual strains,
The lower part of the culture medium 3 is fitted into the liquid suction body 2, and in this state it is inserted into the transplant hole 11 of the cultivation panel 1.

In the liquid suction body 2 configured as described above, the present invention has the following features:
As shown in Fig. 2, Fig. 3, and Fig. 4, a tapered part 2a is formed in the upper part of the liquid suction body 2, where the culture medium 3 is inserted, with the upper part expanding in the direction of the angle α. It is.

The tapered portion 2a is the portion into which the culture medium 3 made of an elastic porous material such as sponge is pressed and inserted, so by providing the tapered portion 2a that widens toward the upper surface, , the medium body 3 with seedlings is transferred to the liquid suction body 2
This has the advantage of making it easier to insert the root portion C when fitting it into the holder. Moreover, the degree of adhesion between the culture medium 3 and the liquid suction body 2 can be improved, and the hollow interior of the liquid suction body 2 can be made into an appropriate growth environment.

In addition, since the liquid suction body 2 is made of a porous water-absorbing material, it is always left in the air in a partially exposed state, and the outer peripheral portion of the liquid suction body 2 containing moisture is Mold may grow on the inner periphery.

In the present invention, a sterilizing coating is applied to the outer and inner peripheral surfaces of the cough liquid suction body 2 to prevent mold from forming on the liquid suction body 2.

In addition, as shown in FIG. 2 of the liquid suction body 2, the cultivation bed 1
The lower end is located at a position away from the bottom surface of the liquid suction body 2, and the space between the lower end of the liquid suction body 2 and the cultivation bed 1O constitutes a space in which the root portion C can extend.

However, since the lower end of the liquid suction body 2 is in contact with the hydroponic liquid 9, salt in the hydroponic liquid often accumulates on the lower end of the liquid suction body 2, and when this salt hits the root C, the root C is damaged and withers.

In this configuration, the lower end portion of the liquid suction body 2 is made of a water-soluble material that dissolves inside the hydroponic liquid 9 when the roots C have sufficiently developed. The water-soluble material is constructed from a paper mold using recycled paper or the like.

Further, in the embodiment shown in FIGS. 5 and 6, the lower end portion of the liquid suction body 2 is formed into an octopus-shaped portion 2b.

By forming the octopus-like portions 2b, a wide water-immersed surface can be provided inside the hydroponic solution 9, so that water absorption can be improved.

In addition, by widening the octopus-like part 2b at the lower end, it is possible to widen the space between the lower end of the liquid suction body 2 and the bottom of the cultivation bed 1O. This allows the space that does not come into contact with the lower end to be wider.

In the embodiments shown in FIGS. 7 and 8, a disk-shaped portion 2C is formed at the lower end of the liquid suction body 2.

By providing the disk-shaped portion 2C, water absorption can be improved and the distance between the cultivation bed 10 and the lower end of the liquid suction body 2 can be widened.

In Fig. 9, in order to facilitate the setting of the liquid suction body 2 and the culture medium 3, the liquid suction body 2 is first glued and configured into a cylindrical shape when both are placed together. A gluing part 2d is provided on the raising body 2. A gluing part 2d is also provided at the joint between the culture medium 3 and the liquid suction body 2, so that the liquid suction body 2 and the culture medium body 3 can be connected to each other. Good adhesion condition.

In FIG. 10, a stretchable water-absorbing material 2e such as elastic gauze is used at the joint between the liquid suction body 2 and the culture medium 3, and by stretching this part, the medium body 3 can be easily inserted. An embodiment is disclosed.

(F) Effects of the Invention Since the present invention is constructed as described above, it has the following effects.

First, by configuring the tapered portion 2a on the upper part of the liquid suction body 2, the operation and treatment for fitting the culture medium 3 into the liquid suction body 2 can be performed easily and easily.

Second, since the tapered part 2a is provided to widen the upper part of the liquid suction body 2, the contact area and degree of adhesion between the liquid suction body 2 and the culture medium 3 are improved, and the liquid suction body 2 is expanded. This makes it possible to maintain an optimal growth environment within the hollow space.

Thirdly, by configuring the disc-shaped portion 2C at the insertion portion of the liquid suction body 2 into the transplant hole 11 of the cultivation panel 1, the state in which the liquid suction body 2 and the culture medium body 3 are held in the cultivation panel 1 is maintained. We were able to improve this.

[Brief explanation of the drawing]

FIG. 1 is a side cross-sectional view of the hydroponic cultivation apparatus of the present invention, FIG. 2 is an enlarged side cross-sectional view of the liquid suction body 2 of the present invention, and FIG. FIG. 4 is a side view of only the liquid suction body 2, FIG. FIG. 7 is a perspective view of the liquid suction body 2 configured in the shape of an octopus's foot, FIG. FIG. 9 is a perspective view of the liquid suction body 2 in a set state, and FIG. 10 is a perspective view of an embodiment in which the liquid suction body 2 is provided with an elastic portion on the upper part. l・・ 2・・ 2a・ 3・・ 4・・ 9・・ 11・ ・Cultivation panel・Liquid suction body・・Tapered part・Culture body・Liquid tank・Hydroponic liquid・・Transplant hole

Claims (1)

[Claims] Cultivation panel 1 on the top surface of cultivation bed 10 that supplies hydroponic solution 9
In a hydroponic cultivation apparatus for growing crops by placing a culture medium 3 on the cultivation panel 1 and supporting the culture medium 3, the liquid suction body 2 having one end connected to the medium body 3 is configured in a cylindrical shape, It is inserted into the hydroponic liquid 9 on the bottom side of the cultivation bed 10, and the upper part of the liquid suction body 2 having a hollow part is formed into an upwardly opening tapered part 2a, and the culture medium 3 is held within the tapered part 2a. A hydroponic cultivation device characterized by: