JPH08336337A - Bed for water culture - Google Patents

Abstract

PURPOSE: To enable all of the plants grown on the bed to be given the nutrients by evenly distributing the pools for the nutrient solution in the solution-flowing paths on the bed, even in the case of power failure or emergency. CONSTITUTION: In the water culture bed in which paths 1 for flowing the culture solution are formed, the bottom 2 of a path is made in gradual ascent widthwise from the center toward both sides. Banks 3 are formed higher than the bottom every a certain interval in the longitudinal direction of the bottom face and pools 4 for culture solution lower than the bank are formed between adjacent banks. The bank is made descending from the top 5 on both sides in the longitudinal direction and the bottom face of the bank also is made in gradual ascent from the center part toward both sides. The solution-flowing paths are sectioned by the section walls 6 to form plural flowing paths.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydroponic bed for hydroponic cultivation of various plants such as leafy vegetables and fruit vegetables.

[0002]

2. Description of the Related Art There have been various types of hydroponic beds, and one of them has been developed by the present inventor as shown in FIG. The bed A is made of styrofoam, side walls B are formed on both sides in the width direction of the bed A, and a receiving portion D on which the planting plate C is placed is formed inside the side wall B. A plurality of flowing water channels E are formed in parallel at the bottom of the bed A, and the surface of the flowing water channel E is the bed A.
Is gradually inclined downward from the upstream end to the downstream end. A plurality of such beds A are connected in the longitudinal direction so that the flowing water channel E has a predetermined length and is used. At this time, a step F as shown in FIG. 9 is generated at the connecting point, and the cultivation liquid flowing from the upstream overflows when it reaches the water level for the step and flows out to the bed on the downstream side.
When hydroponics is performed using this bed, as shown in FIG. 8 (b), the planting plate C is placed on the receiving part D to cover the running water channel E and the holes formed in the planting plate C. The plant is inserted into the root of the plant so that the root of the plant is immersed in the culture solution flowing through the water channel E.

[0003]

In hydroponic cultivation, when electricity stops due to a power failure, a failure, or the like, the pump for circulating the cultivation liquid stops operating, and the cultivation liquid is not supplied to the bed A. In this case, it is desirable that the culture solution remains uniformly over the entire length in the longitudinal direction of the running water channel E. However, in the hydroponic cultivation bed of FIG. 8, since the running water channel E is inclined and there is a step F in the longitudinal direction, the cultivation solution is A large amount of the cultivation liquid is collected before the deep bottom step F, but the amount is small on the upstream side, or in some cases, there is no cultivation liquid at all. For this reason, the plants on the upstream side cannot absorb nutrients from the roots, and if the blackout is stopped for a long time, the plants may grow poorly or die.

The object of the present invention is to cultivate all the plants planted in the bed even if the pump stops operating due to a power failure or a failure, because the culture solution is evenly accumulated in the longitudinal direction of the flow channel of the bed. It is intended to provide a bed for hydroponic cultivation which can absorb nutrients from a liquid and does not deteriorate in growth or die.

[0005]

As shown in FIG. 1, the hydroponic bed according to claim 1 of the present invention is a hydroponic bed in which a flow channel 1 for flowing a culture solution is formed. The bottom surface 2 of the liquid flow path 1 is formed so as to gradually rise from the center portion in the width direction toward both outer sides, and the bank portions 3 higher than the bottom surface 2 are formed at predetermined intervals in the longitudinal direction of the bottom surface 2. A cultivation liquid storage part 4 lower than the bank part 3 is formed between the matching bank parts 3, and the bank part 3 is gradually inclined downward from the top part 5 to both sides in the longitudinal direction of the bottom face 2, and the bottom face 2 of the bank part 3 is also formed. It is formed so as to gradually rise from the center portion in the width direction toward both outer sides.

As shown in FIG. 1, the hydroponic bed according to the second aspect of the present invention comprises the flow channel 1 according to the first aspect defined by partition walls 6 to form a plurality of paths.

[0007]

In the hydroponic bed according to claim 1 of the present invention, the bottom surface 2 of the flow channel 1 formed on the bottom surface 2 of the bed 7 rises from the widthwise center of the flow channel 1 toward both sides. Since it is formed with an inclination, the central portion in the width direction is deepest.
For this reason, when the amount of the cultivation liquid supplied to the flow channel 1 decreases, it flows through the deepest widthwise central portion of the bottom surface 2 of the flow channel 1 and the hole of the planting plate covered on the flow channel 1. The roots of the plant 8 which has been planted by being inserted into the plant are easily immersed in the culture solution. In addition, the bottom surface 2 of the same-flowing liquid passage 1 is formed at predetermined intervals in the longitudinal direction.
A bank portion 3 higher than the bottom surface 2 is formed at predetermined intervals in the longitudinal direction, and a cultivation liquid storage portion 4 lower than the bank portion 3 is formed between the adjacent bank portions 3. The bank portion 3 extends from the top 5 to the bottom. Since it is formed in a downward slope on both sides in the longitudinal direction of 2, even if the cultivation liquid is no longer supplied to the flow channel 1 due to a power outage, etc.
Even if the culture solution is not supplied, the roots of the plants 8 planted on the planting plate are easily immersed in the culture solution. Further, since the bottom surface of the bank portion 3 is also formed so as to gradually rise from the widthwise central portion toward both outer sides, the bank portions 3 are formed at predetermined intervals in the longitudinal direction of the bottom surface 2 of the flow channel 1. However, the flow of the cultivation liquid is not blocked by the bank 3.

In the hydroponic bed according to the second aspect of the present invention, since a plurality of flow channels 1 are formed, a large number of plants 8 can be planted in one hydroponic bed 7 and the efficiency is improved. Good cultivation can be done.

[0009]

Example 1 An example of a bed for hydroponics of the present invention is shown in FIG.
It will be described in detail based on 3 to 3. 1 of FIG. 1 is a styrofoam bed 7, side walls 10 are formed on both sides of the bed 7 in the width direction, and the planting board 1 is provided inside the side wall 10.
A receiving portion 12 on which 1 is placed is formed. Eight liquid flow paths 1 partitioned by partition walls 6 are formed in parallel on the bottom surface 2 of the bed 7. The partition wall 6 is formed integrally with the bed 7 and projects upward from the bottom surface 2, and is also used as a receiving portion 12 on which the planting plate 11 is placed. The partition wall 6 is formed in a semicircular vertical cross section. Partition wall 6
It may be attached to the bottom surface 2 by molding it separately from the bed 7.

The size of the bed 7 can be appropriately selected according to the purpose of use and the place of installation. For example, the length is 1200 m.
The width of the side walls 10 formed on both sides in the width direction can be 30 mm, and the depth from the upper surface of the side wall 10 to the bottom surface 2 of the bed 7 can be about 50 mm.

The flow passage 1 will be described in detail with reference to FIGS. The flow channel 1 is for flowing a culture solution containing nutrients for cultivating the plant 8, and the bottom surface 2 of the flow channel 1 is gradually inclined upward from the widthwise central portion toward both outer sides. And has a V-shaped cross section. The width is, for example, 112 mm to 115 mm, the height from the center in the width direction to the outermost highest parts is about 2 to 3 mm, and the gradient is gentle.

Banks 3 are formed at regular intervals (every 600 mm) in the longitudinal direction of the bottom surface 2 of the flow passage 1. The bank 3 is formed in a mountain shape that gradually slopes upward in the flow direction of the flow channel 1 to reach the apex 5, and gradually descends from the top 5 between the adjacent banks 3. The cultivation liquid storage part 4 lower than the bank part 3 is formed. The length of the bottom of the bank 3 (the length of the cultivation liquid storage 4) is 200 mm, and the height of the bank 3 is about 5 mm from the bottom surface 2 to the top 5 of the flow channel 1. There is. Also, the bottom surface 2 of the bank 3
Is also formed in a V-shaped cross-section with a gentle upward slope from the center portion in the width direction toward both outer sides.

[0013]

[Example of use of hydroponics bed of Example 1] As shown in FIG. 5, a bed 7 of the present invention is installed on a gantry 13 having a predetermined length that is horizontal or inclined, and a plurality of beds are connected to each other. A planting plate 11 is placed on the bed 7 and the plant 8 is placed in the planting hole.
And plant it. The cultivation liquid in the liquid storage tank 15 is pumped up by the supply pump 16 and supplied to the most upstream bed 7 among the plurality of beds 7 connected in that state. The cultivation liquid 6 flows to the most downstream bed 7, flows into the collecting tub 17, is collected by the collecting pump 18, is returned to the liquid storage tank 15 through the collecting pipe 19, and is circulated. Meanwhile, the planted plant 8 grows by absorbing nutrients from the culture solution.

[0014]

[Other Examples] The basic structure of the hydroponic bed according to the present invention is the same as that of Example 1, but other details may be used. The shape, width, depth, etc. of the storage portion 4 can be other than those shown in the drawings. For example, as shown in FIG. 7, the bank portion 3 may have a rounded top portion 5, and the cross section of the cultivation liquid storage portion 4 is not V-shaped but U-shaped as shown in FIG. 6A. Further, as shown in FIG. 6B, the entire bottom surface 2 can be curved so that the central portion in the width direction becomes the lowest, and the width and the depth can be arbitrarily selected.

[0015]

The effects of the hydroponic bed according to the first aspect of the present invention are as follows. ． Since the cultivation liquid is stored in the cultivation liquid storage unit 4, even if the operation of the pump is stopped due to a power failure and the cultivation liquid is temporarily not supplied to the bed 7, for example, the plant 8 retains the cultivation liquid in the cultivation liquid storage unit 4. The nutrients can be absorbed from the plant, and the growth does not become extremely bad or die. ． Since the central portion in the width direction of the bottom surface 2 of the flow channel 1 is the deepest, even a small amount of cultivation liquid will surely flow through the central portion,
The culture solution is used efficiently and is economical. ． Since the bottom surface of the bank portion 3 is also formed so as to gradually rise from the center portion in the width direction toward both outer sides, even a small amount of the cultivation liquid smoothly flows without being blocked by the bank portion 3.

In the hydroponic bed according to the second aspect of the present invention, as many plants 8 as the number of the flow channels 1 can be cultivated, so that the cultivation efficiency is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a bed for hydroponics of the present invention.

FIG. 2 shows a first embodiment of a bed for hydroponic cultivation of the present invention, (a) is a top view, (b) is A- of (a).
A sectional view, (c) a BB sectional view of (a), (d) a CC sectional view of (a).

FIG. 3 is a sectional view showing an example of use of the hydroponic bed of the present invention.

FIG. 4 is a perspective view showing a usage example of the hydroponic bed of the present invention.

FIG. 5 is a side view of a hydroponic cultivation apparatus using the hydroponic bed of the present invention.

6 (a) and 6 (b) are explanatory views showing different embodiments of the bed for hydroponics of the present invention.

FIG. 7 is an explanatory view showing a fourth embodiment of the hydroponic bed of the present invention.

FIG. 8 shows an example of a conventional hydroponic bed, (a) is a top view, (b) is a front view, and (c) is (a).
XX sectional drawing of FIG.

FIG. 9 is a side view in which conventional hydroponics beds are connected.

[Explanation of symbols]

 1 Flowing liquid channel 2 Bottom surface 3 Levee section 4 Cultivation solution storage section 5 Top section 6 Partition wall

Claims (2)

[Claims] 1. A hydroponic bed in which a flow channel (1) for flowing a culture solution is formed, and a bottom surface (2) of the flow channel (1) extends from the center portion in the width direction toward both outer sides. The bank portion (3) is formed so as to gradually rise upward, and a bank portion (3) higher than the bottom surface (2) is formed at predetermined intervals in the longitudinal direction of the bottom surface (2). ) Lower cultivation liquid storage part (4) is formed, and the bank part (3) is formed in a downward slope from the top part (5) to both sides in the longitudinal direction of the bottom face (2),
A bed for hydroponics, characterized in that the bottom surface (2) of the bank portion (3) is also formed so as to gradually rise from the center portion in the width direction toward both outer sides. 2. The hydroponic bed according to claim 1, wherein the flow channel (1) is divided by a partition wall (6) to form a plurality of channels.