JPH0216616Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The present invention relates to equipment used for hydroponic cultivation, and in particular has a culture medium and a storage part for the culture solution, and the roots of the cultivated plants are directly exposed to the culture solution. Concerning unitized equipment that does not require immersion.

<Prior art> In hydroponic cultivation, it is necessary to supply culture solution to cultivated plants, and in order to avoid the need for constant supply, it is possible to provide a liquid storage section or use a water-retaining medium. be.

However, if the elongated roots or the roots extending from the water-retaining material are directly immersed in the culture solution, the plant may become overnourished due to excessive culture solution, or root rot may occur due to lack of oxygen, resulting in poor plant growth. I didn't like it at all.

<Objective> The object of the present invention is to eliminate the above-mentioned conventional drawbacks and to provide a unitized device that includes a culture medium and a liquid storage member, and in which the roots are not directly immersed in the culture solution.

<Structure> The present invention is designed to have a water-permeable member of any size and thickness that does not allow the roots of cultivated plants to penetrate, and which are placed one on top of the other, with the upper side serving as a medium and the lower side serving as a storage medium. A hydroponic cultivation equipment comprising a pair of water-retaining members used as liquid members, and a watertight sheet covering the entire outer surfaces of the water-retaining members and the water-permeable member.

<Example> Next, an example of the present invention will be described with reference to the drawings.

In FIG. 1, a hydroponic cultivation equipment 1 is shown.
2a and 2b are water-retaining members, which have arbitrary sizes;
It has the shape of a thick rectangular parallelepiped. The water-retaining members 2a and 2b are made of water-absorbing rock wool or glass wool as an inorganic fiber material, cellulose material as an organic fiber material, water-absorbing urethane foam, charcoal, sand, etc. as a foamable synthetic resin, and are made of In addition to a block-like shape, a pine-like shape may also be used. In addition, when forming with charcoal, sand, etc., a shape retaining material is required.

3 is a water-permeable member, which is a water-retaining member 2a and a water-retaining member 2 which are arranged as a pair by overlapping each other.
b, and both ends 3a and 3b of the water-retaining member 2a and the side walls 21a and 2b of the water-retaining member 2b
They are each fixed to a part of 1b.

The water-permeable member 3 is composed of a non-woven sheet-like body made of non-woven fibers such as polyvinyl alcohol, polyester, nylon, etc., has water absorption properties, and has minute pores through which the roots of cultivated plants cannot pass. . It is preferable that the pores have a diameter of 50 μm or less, for example.

4 is a watertight sheet, and water retaining members 2a, 2
b and the entire outer surface of the water permeable member 3.

An example of using such hydroponic cultivation equipment 1 is shown in FIG. 2.

Reference numeral 5 denotes a bed base member, which has an inclined surface in a direction substantially perpendicular to the longitudinal direction of the bed.

Reference numeral 6 denotes a liquid supply means disposed above near the high end edge of the bed base member 5, and has a plurality of through holes 6a for discharging the culture liquid into the tube body.

Reference numeral 7 denotes a liquid collecting means disposed below the lower edge of the bed base member 5. The liquid collecting means 7 is formed in the shape of a gutter as shown in the figure, and is formed to receive the culture liquid flowing on the bed base member 5 and to flow it into a specific liquid tank.

Then, the hydroponic cultivation equipment 1 is placed on the bed base member 5, a hole 4a is made in the watertight sheet 4 on the upper surface of the hydroponic cultivation equipment 1, and the water-retaining member 2 is inserted through the hole 4a.
The roots of the cultivated plants 9 are extended within the space a, and the plants are grown on the hydroponic cultivation equipment 1.

Then, the culture solution is supplied to the hole 4 from the through hole 6a of the liquid supply means 6.
Supply within a.

The required amount of the culture solution supplied through the hole 4a is absorbed and retained in the water-retaining member 2a used as a culture medium, and the remaining culture solution passes through the water-permeable member 3 and is absorbed and retained in the water-retaining member 2b. Ru.

Since the culture solution cannot pass through the watertight sheet 4,
A watertight sheet 4 disposed on the lower surface of the hydroponic cultivation equipment 1 is used as a tray for the culture solution.

Therefore, when used in this manner, the bed base member 5 and the liquid collecting means 7 may not be provided as long as the culture solution is supplied only into the hole 4a from the through hole 6a.

Thus, the water-retaining member 2a is used as a water-retaining medium, and the water-retaining member 2b is used as a liquid storage member for a culture solution.

Therefore, even if the supply of the culture solution from the liquid supply means 6 is stopped, the required amount of culture solution is limited to the water retaining members 2a, 2b.
When the culture solution held in the water-retaining member 2a decreases due to absorption by the plants 9, the culture solution retained in the water-retaining member 2b passes through the water-permeable member 3 and enters the water-retaining member 2a. Water is absorbed and retained.

Therefore, it is not necessary to constantly supply the culture solution, and it is possible to cope with troubles in supplying the culture solution due to power outages, etc.

In addition, the watertight sheet 4 disposed on the top surface of the hydroponic cultivation equipment 1 is used as a covering member to prevent the temperature of the culture solution from changing due to solar heat, etc., or to prevent the generation of chlorella due to light irradiation. Can be done.

Furthermore, even if the roots extend as the plants 9 grow and try to move downward from the water-retaining medium 2a, they are blocked by the water-permeable member 3 and cannot pass through, so that excessive culture is allowed to occur in the water-retaining member 2b. Even when the liquid remains, the roots of the plants are not directly immersed in the excess culture solution, and no damage is caused by excessive nutrition.

Therefore, the water retaining member 2a used as a culture medium
is prevented from coming into contact with excess culture solution by the water permeable member 3, so it is possible to absorb oxygen from the atmosphere through the hole 4a, and the plant roots can absorb oxygen as needed. No harm will occur.

Although plant roots remain in the water-retaining member 2a of the hydroponic cultivation equipment 1 used in this manner, plant roots do not enter the water-retaining member 2b, and no roots remain.

Therefore, reuse is possible by turning the hydroponic cultivation equipment upside down and using it as a culture medium with the water-retaining member 2b facing up, and using it as a liquid storage member with the water-retaining member 2a facing down. In this case, it is necessary to again make holes (not shown) in the watertight sheet 4 placed on the top surface. In addition, since the watertight sheet 4 disposed on the bottom surface has holes 4a already made, it cannot be used as a saucer when reusing it. is necessary.

Other embodiments are shown in FIGS. 3-5.

In the case shown in FIG. 3, both ends of the water-permeable member 3 are fixed to parts of the side walls on both sides of the water-retentive members 2a and 2b, respectively.

In the case shown in FIG. 4, both ends of the water-permeable member 3 coincide with both ends of the water-retaining members 2a, 2b, and do not cover the side walls of the water-retaining members 2a, 2b.

Moreover, what is shown in FIG. 5 is one in which a plurality of hydroponic cultivation equipment 1 shown in FIG. 1 are arranged in series.

Furthermore, a combination of those shown in FIGS. 1 and 3 to 5 may be used.

<Effects> The present invention has the above configuration and has the following effects.

(1) When the equipment of the present invention is used for hydroponic cultivation, the water-retaining member placed above can be used as a culture medium, and the water-retaining member placed below can be used as a liquid storage member, as described above.

Therefore, there is no need to prepare any other material as a culture medium, and there is no need to constantly supply a culture solution.

(2) Since the water-permeable member prevents roots from penetrating, the roots are not directly immersed in the culture solution, and there is no overnutrition or oxygen deficiency, allowing effective hydroponic cultivation.

(3) Since the entire surface of the water-retaining member and the water-permeable member is covered with a watertight sheet, the watertight sheet placed on the top side acts as a covering member, and the watertight sheet placed on the bottom side protects the culture medium. Can be used as a saucer.

(4) Since the water-retaining member, water-permeable member, and watertight sheet are combined into a unit, it is easy to use by placing it on a hydroponic cultivation bed, etc., and saves labor during installation work. .

(5) Since the roots of plants are blocked by the water-permeable member and do not invade the water-retaining member placed below, it is possible to reuse it by placing it upside down.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figures are explanatory diagrams showing how to use them, Figures 3 and 4.
5 are sectional views showing other embodiments of the present invention. 1...Hydroponic cultivation equipment, 2a, 2b...Water retaining member, 3...Water permeable member, 4...Watertight sheet.

Claims (1)

[Claims for Utility Model Registration] They are arranged one on top of the other with water-permeable members having any size and thickness that do not allow penetration of the roots of cultivated plants, with the upper side serving as a medium and the lower side serving as a medium. A hydroponic cultivation equipment comprising: a pair of water-retaining members used as liquid storage members; and a watertight sheet covering the entire outer surfaces of the water-retaining members and the water-permeable member.