JPH08214701A - Hydroponic culture of paddy rice seedling and its device - Google Patents

Abstract

PURPOSE: To provide a method and a device for hydroponic culture of paddy rice seedlings requiring no large nursery bed and no heavy labor and capable of removing mistakes in seedling preparation. CONSTITUTION: In this device for hydroponic culture of paddy rice seedlings, container bodies 5 are laid on each shelf of multi-shelves and a porous plate 8 and a dibbling seed plate are put in order in each of the container bodies. Water is fed from a water tank to the container bodies on the top shelf through a pipe and the water is fed from the container bodies on the top shelf to the container bodies on the lower shelves successively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hydroponic cultivation method and apparatus for paddy rice seedlings, which eliminates heavy labor for seedling production and failure of seedling production, and does not require a vast area for seedling production.

[0002]

2. Description of the Related Art In recent years, seedlings are produced by finely crushing soil in a field and leveling while supplying water to form a nursery bed.

Next, the seed bed for point seeding shown in Japanese Patent Publication No. 1-27682 is sunk and cultivated on this nursery. In addition,
Place a root cutting net such as ginseng on the seedbed to facilitate seedling removal work by raising the seed plate for seeding after raising seedlings.

[0004]

According to the above-mentioned production of seedlings, there is a problem that the work is soiled by hand in the mud and becomes dirty and causes back pain due to heavy labor. In addition, when the seed plate for seeding is sunk into the nursery, a large unevenness occurs in raising seedling depending on whether the sunk is shallow or deep,
There was a problem that required a high degree of skill. In addition, since the nursery is located near the house where irrigation and drainage are convenient, and where the soil has high soil strength, there is a problem in selecting the location.

Further, in the case of raising nursery seedlings, if there is a difference in height between nursery beds, germination is poor (at low places, oxygen deficiency due to excessive humidity causes
In high places, due to the dryness on the floor), murre seedlings or dead seedlings due to drastic temperature changes day and night (especially murre seedlings are generated due to low temperatures) may occur, and seedling production may fail. Furthermore, there is a problem that a vast seedling area is required.

Particularly in recent years, the majority of early rice cultivation is due to the taste of good rice, so that germination and poor seedling raising are often caused by low temperatures. In this case, since the seedbed of a vast area is covered with a synthetic resin sheet for keeping heat, it becomes difficult to work in the mud and the cost increases.

Therefore, an object of the present invention is to provide a hydroponic cultivation method and apparatus for paddy rice seedlings, which eliminates heavy labor for seedling preparation and failure of seedling preparation, and does not require a vast area for seedling production. .

[0008]

In order to solve the above-mentioned problems, the present invention has a multi-tiered shelf in which the top surface of the bottom wall is uneven so as not to impede the flow of water, and the peripheral wall of the outflow stopper is provided at the entire periphery. Place a dish-shaped vessel with a porous plate inside it, and then place a seed plate for soil, sowing, and soil seeding in a myriad of pots with open tops and small holes at the bottom. Place
A paddy rice seedling characterized by supplying water from the water tank to the above-mentioned container at the uppermost stage by appropriate means and supplying water in the above-mentioned container at the uppermost stage to the above-mentioned container at the lower stage sequentially through a pipe for raising seedlings. Adopt the hydroponics method.

In addition, a multi-tiered shelf, a dish-shaped container body having an uneven shape in which the upper surface of the bottom wall placed on each shelf does not impede the flow of water, and has a peripheral wall for preventing outflow at the entire peripheral edge, Porous plate laid on the bottom wall of the container and placed on this porous plate, the top surface is open and the end of the soil, seeding and covering work in the innumerable pots with small holes in the bottom A seed plate for spot seeding,
Water for paddy rice seedlings, which comprises a water tank provided to supply water to the uppermost container by a convenient means, and a pipe provided to supply water from the uppermost container to the lower container in sequence Adopt cultivating equipment.

Further, a multi-tiered shelf, a dish-shaped container body having an uneven shape in which the upper surface of the bottom wall placed on each shelf does not impede the flow of water, and has a peripheral wall for preventing outflow at the entire peripheral edge, Porous plate laid on the bottom wall of the container and placed on this porous plate, the top surface is open and the end of the soil, seeding and covering work in the innumerable pots with small holes in the bottom Seed board for spot-seeding, a water tank provided for supplying water to the uppermost vessel by appropriate means, and a pipe provided for sequentially supplying water from the uppermost vessel to the lower vessel. A root-cutting thread which is formed by bending the porous plate and the seed plate for point seeding into a U-shape or a U-shape in a plane and has both free ends easily grasped from one end of the seed plate for point seeding. A hydroponic cultivation apparatus for paddy rice seedlings is used.

Further, a configuration is adopted in which the upper end of the pipe is adjustable up and down.

Further, a structure is adopted in which the water in the water storage tank can be heated by a heater.

[0013]

With the above structure, water is supplied from the water tank to the uppermost container. Then, the water that has flowed into the uppermost body enters the pipe from the upper end of the pipe and flows down into the lower body.

At this time, if the pipe is vertically slid, the water level accumulated in the vessel can be adjusted to be higher or lower.
The water accumulated in the body flows from each hole of the porous plate through the small holes at the bottom into the pot.

Further, the water in the water storage tank is heated by a heater to eliminate germination and poor seedling raising at low temperatures. Furthermore, since the porous plate is laid on the convex and concave surface provided on the bottom of the body, a root zone is formed between the lower surface of the porous plate and the concave surface, and the root volume increases and the seedlings grow. The speed is fast. That is,
Raise strong and large seedlings.

When both ends of the thread are grasped and pulled forward or wound on a drum, the roots are cut off by the thread, which facilitates removal of the seed plate for seeding during seedling removal.

[0017]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, 1 is a multi-tiered shelf.
The above-mentioned shelf 1 is formed, for example, by mounting a rectangular frame body 3 made of an angle member or the like on a pillar member 2 at least at four corners made of an angle member or the like via a fastener 4 composed of a bolt and a nut in multiple stages. .

Reference numeral 5 is a dish-shaped container placed on each shelf 1. As shown in FIGS. 2 and 3, the container body 5 is composed of an uneven bottom plate 6 that does not impede the flow of water, and a peripheral wall 7 that projects upward from the entire peripheral edge of the bottom wall 6. .

The unevenness of the bottom wall 6 is not limited to the continuous wavy shape shown in the drawing, and upward projections may be provided in a staggered manner in a scattered manner, and a synthetic resin molded product or a metal plate press-molded. If a product is used, mass production becomes possible and the cost can be reduced.

Reference numeral 8 is a porous plate having innumerable small holes 9, and the porous plate 8 is laid on the bottom wall 6 of the container 5. Then, the convex portion of the bottom wall 6 forms a gap between the upper surface of the bottom wall 6 and the lower surface of the porous plate 8, and this gap becomes the root zone 10 of the adult seedling.

11 has an innumerable pot 13 having an open top and a small hole 12 at the bottom (for example, Japanese Patent Publication No.
The seed plate for seeding is described in JP-A-27682). The seed plate for seeding 11 is of a size that is easy to handle for taking out grown seedlings, and is placed on the porous plate 8 in order.

As shown in FIG. 4, soil 14 is first placed in each pot 13, and seeded 15 and then covered with soil 16. Water is supplied from the water tank 17 to the uppermost container 5.

In the illustrated case, the water storage tank 17 is placed on the floor, and the water is supplied through the pipe 19 by the operation of the pump 18.

Further, the water supplied to the uppermost container 5 is
It is adapted to be sequentially supplied to the lower container body 5 through the pipe 20. The water supplied to each vessel 5 flows into the outer periphery of each pot 13 through the small holes 9 of the porous plate 8, and the small holes 12
Enters the pot 13. Then, it sucks up the water and sprouts. The root extends downward from the small hole 12, and the root chamber 1
Grows at 0. If liquid fertilizer is injected into the water tank 17,
Fertilizer is sprayed on the fields, and grown seedlings can be grown in the same way as the cultivated nursery.

Further, the upper end of the pipe 20 is provided so as to be adjustable up and down so that it can be stopped at a required height. For adjusting the elevation of the pipe 20, for example, as shown in FIG. 5, a through hole 21 is provided in the bottom wall 6 of the body 5, and a rubber ring 22 is fitted into the edge of the through hole 21, and the ring The upper end of the pipe 20 is pushed into the groove 22 and penetrated.

Then, due to the frictional resistance of the ring 22 and the contracting force, the sliding of the pipe 20 due to its own weight is stopped,
The upper end of the pipe 20 can be stopped at a desired position.

With the above construction, the pipe 20 is slid upward (to the solid line position in FIG. 5) to raise the water supply level, and the pipe 20 is slid downward (to the chain line position in FIG. 5) to supply water. The water level can be lowered.

Further, the heater 23 is incorporated in the water storage tank 17 to raise the water supply temperature. As a result, it is possible to eliminate the failure of seedling production due to murre seedlings or dead seedlings (especially murder seedlings are generated due to low temperature) due to drastic temperature changes in the day and night.

Further, as shown in FIG. 6, between the porous plate 8 and the seed plate 11 for point seeding, one side is bent so as to be bent in a U-shape or a U-shape in a plane so that both free ends can be easily grasped. Root-cutting thread line 24 protruding outward from the seed sowing plates 11 of the row and having the bent portion positioned outside the seed sowing plates 11 of the other side row 24
Is provided. It may be wound on a drum 25 as shown in FIG.

Then, when the both ends of the root cutting thread 24 are pulled and stretched or wound around the drum 25, the roots of a large number of the seed sowing plates 11 are cut at a time, and the seed sowing plates 11 for the point sowing are cut. It becomes easy to take out. In addition, it is economical to allow the drainage water from the lowermost pipe 20 to flow into the water storage tank 17.

[0032]

EFFECTS OF THE INVENTION Since the method of hydroponics of paddy rice seedlings and the apparatus therefor according to the present invention are configured as described above, it is possible to eliminate the heavy labor and failure of seedling production and to increase the vast area of seedling allowance. do not need.

Further, the water level in the body can be adjusted by raising and lowering the pipe.

Furthermore, since the water supply temperature can be raised by the heater, it is possible to eliminate saplings and dead seedlings due to changes in day and night temperature.

Further, since roots extending downward from the small holes of the porous plate can be grown in the root chamber, the amount of roots is increased, and high quality (durable) seedlings can be produced.

Furthermore, root cutting can be easily performed by the root cutting thread, and the seed plate for point sowing can be taken out smoothly.

In particular, the use of this method and apparatus eliminates the problems of germination and poor seedling raising caused by low temperatures, which have occurred since the majority of early-stage rice cultivation due to the taste of good rice in recent years.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a partially cutaway enlarged plan view showing a shelf portion.

[Fig. 3] Side elevation view of the shelf

FIG. 4 is an enlarged vertical side view showing the root chamber.

FIG. 5 is an enlarged vertical sectional front view showing a pipe.

FIG. 6 is a plan view of the root cutting thread.

[Explanation of symbols]

 1 Shelf 2 Pillar material 3 Frame material 4 Fastening tool 5 Instrument body 6 Bottom wall 7 Circumferential wall 8 Porous plate 9 Small hole 10 Root chamber 11 Point seeding seed plate 12 Small hole 13 Pot 14 Soil 15 Seedling 16 Cover soil 17 Water storage Tank 18 Pump 19 Pipe 20 Pipe 21 Through hole 22 Ring 23 Heater 24 Root cutting thread

Claims (5)

[Claims] 1. A dish-shaped container body having an uneven bottom surface which does not hinder the flow of water and having a peripheral wall for preventing outflow at the entire periphery thereof is provided on each of the shelves, and a porous plate is provided in the container body. Then soil in each of the innumerable pots with open tops and small holes in the bottom,
End of sowing, soil covering work Place a seed plate for seeding, and supply water from the water tank to the above-mentioned vessel at the uppermost stage by an appropriate means, and water in the above-mentioned vessel at the uppermost stage through a pipe in order of the lower stage. A hydroponic cultivation method for paddy rice seedlings, which comprises supplying water to the above-mentioned container to raise seedlings. 2. A multi-tiered shelf, a dish-shaped container body having an uneven shape in which an upper surface of a bottom wall placed on each shelf does not impede the flow of water, and a peripheral wall for preventing outflow at the entire peripheral edge, Porous plate laid on the bottom wall of the container and placed on this porous plate, the top surface is open and the end of the soil, seeding and covering work in the innumerable pots with small holes in the bottom Seed plate for spot-seeding, water tank provided for supplying water to the uppermost container by a convenient means, and pipe provided for sequentially supplying water from the uppermost container to the lower container. A hydroponics device for paddy rice seedlings. 3. A multi-tiered shelf, a dish-shaped container body having an uneven shape in which the upper surface of the bottom wall placed on each shelf does not impede the flow of water, and has a peripheral wall for preventing outflow at the entire periphery, Porous plate laid on the bottom wall of the container and placed on this porous plate, the top surface is open and the end of the soil, seeding and covering work in the innumerable pots with small holes in the bottom Seed board for spot-seeding, a water tank provided for supplying water to the uppermost vessel by appropriate means, and a pipe provided for sequentially supplying water from the uppermost vessel to the lower vessel. A root-cutting thread which is formed by bending the porous plate and the seed plate for point seeding into a U-shape or a U-shape in a plane and has both free ends easily grasped from one end of the seed plate for point seeding. A hydroponic cultivation apparatus for paddy rice seedlings, characterized in that 4. The hydroponic cultivation apparatus for paddy rice seedlings according to claim 2, wherein the upper end of the pipe is vertically adjustable. 5. The hydroponic cultivation apparatus for paddy rice seedlings according to claim 2, wherein the water in the water storage tank can be heated by a heater.