JPH0216615Y2 - - 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 that have come out of the water-retaining material are directly immersed in the culture solution, they may become overnourished due to excessive culture solution, or root rot may occur due to lack of oxygen, which may affect the growth of the plant. I didn't like it.

In order to eliminate such drawbacks, a hydroponic cultivation device has already been proposed that uses a water-retaining member used as a culture medium or a liquid storage member, and a water-permeable member that has water absorption properties and cannot be passed through by plant roots. (Utility Model Application No. 59-38119 (Utility Model Application No. 1987-149959), Utility Model Application No. 59-38125 (Utility Model Application No. 60-151354)) However, these devices do not require water-retentive members, water-permeable members, etc. Installation was troublesome because they were installed in combination, and transportation was also inconvenient due to the deformation of the materials.

<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.

<Configuration> Arranged facing each other with a water-permeable member having arbitrary size and thickness that does not allow the roots of cultivated plants to penetrate, one side is used as a medium and the other side is used as a liquid storage member. A hydroponic cultivation equipment comprising a pair of water-retaining members and a net member that covers 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 foaming 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 net member, water retaining members 2a, 2b
and covers the entire outer surface of the water permeable member 3.

For the net member 4, for example, a shrinkable mesh member is used.

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 is provided with a plurality of through holes 6a for discharging the culture solution into the tube body, so that at least the liquid supply means on the bed base member 5 is provided. The structure is such that the culture solution can be supplied to the part where the roots of the plant are placed.

Reference numeral 7 denotes a liquid collection means disposed below the lower edge of the bed base member 5. The liquid collection 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, and the plants 9 are grown on the hydroponic cultivation equipment 1.

8 is a covering member that supports the cultivated plants 9 and prevents temperature changes in the culture solution due to solar heat, etc.;
Alternatively, it is made of a material with good heat insulation and light shielding properties in order to prevent the generation of chlorella due to light irradiation.

The water-retaining member 2a located at the upper part is used as a water-retaining medium, and the roots of the plants 9 are connected to the net member 4.
, and grows and extends within the water-retaining member 2a.

The necessary amount of the culture solution supplied by the liquid supply means 6 is absorbed and retained in the water-retaining member 2a, and the remaining culture solution passes through the water-permeable member 3, and the necessary amount of water is also absorbed and retained in the water-retaining member 2b. The remaining excess culture fluid flows over the bed base member 5 and is collected by the fluid collecting means 7.

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.
A water-retaining member 2 that is retained in and used as a culture medium
When the culture solution held in a decreases due to absorption by the plants 9, the culture solution held in the water-retaining member 2b used as a liquid storage member passes through the water-permeable member 3 and enters the water-retaining member 2a. Water is supplied, 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, if a liquid storage part for the culture solution is provided on the lower surface of the hydroponic culture equipment 1 (not shown) and the lower water-retaining member 2b is brought into contact with the liquid storage part, the culture solution can be transferred to the lower water-retaining member. 2b, there is no need to provide a liquid supply means.

Furthermore, even if the roots of the plant 9 extend and try to move downward from the water-retentive medium 2a, the water-permeable member 3
Since the roots of the plants 9 will not invade into the water-retaining member 2b, when using the hydroponic cultivation equipment 1 again, the water-retaining member 2b must be placed above the water-retaining member 2b. It may be used as a culture medium with the water retaining member 2a facing down and used as a liquid storage member. In this case, the water retaining member 2a
The roots of the plant from when it was first used remain;
Since no plant roots remain in the water retaining member 2b, it can be reused.

In addition, since the roots of the plants 9 cannot pass through the water-permeable member 3, even if the bottom surface of the hydroponic cultivation equipment 1 is in direct contact with the culture solution, the roots of the plants 9 will not be directly immersed in the culture solution, preventing excessive No problems occur due to nutrition.

Therefore, the water retaining member 2a used as a culture medium
Because the water-permeable member 3 prevents direct contact with the culture solution, the plant can absorb appropriate oxygen, and the roots of the plant do not suffer from any adverse effects due to lack of oxygen.

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 water-retaining member and the water-permeable member are combined into a unit, it can be easily placed and used in a hydroponic cultivation bed, etc., and labor-saving installation work can be achieved.

(4) Since the entire surfaces of the water-retaining member and the water-permeable member are covered with the net member, deformation can be prevented.

(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...Net member.

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 net member covering the entire outer surfaces of the water retaining members and the water permeable member.