JP2001275504A - Apparatus for culturing wasabia japonica - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for culturing Wasabia japonica, capable of efficiently using city water, etc., without being restricted by a culture position, readily and stably carrying out the culture of Wasabia japonica in excellent productivity and easily obtaining water having qualities being the most suitable culture of Wasabia japonica. SOLUTION: This apparatus for culturing Wasabia japonica is characterized in that the apparatus is equipped with a culture container which is composed of a bottom wall and a side wall and is charged with a mixture of many kinds of soil for culturing Wasabia japonica and a water circulation device which stores water draining out from the culture container in a tank, filters water in the tank and resupplies the water to the culture container. The water circulation device controls a water temperature, a dissolved oxygen amount and pH, respectively and supplies water to the culture container. The water circulation device is characterized in that the device operates, for example, a water temperature controller set in the tank to control a water temperature, discharges air from an air supply pipe set in the tank to water to control the dissolved oxygen amount and controls pH by a filter medium set in the tank.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cultivating wasabi, and more particularly, to a device for cultivating wasabi cultivated in a tatami-stone-type wasabi field in a cultivation room such as an indoor room.

[0002]

2. Description of the Related Art Conventionally, in most cases, cultivation of wasabi has been cultivated in tatami-stone-type wasabi fields created near a clear stream in the natural world. A system of cultivating wasabi that is not grown is being developed.
In this wasabi cultivation system, soil is put in a toro container where concrete is kneaded, and a plurality of these are arranged in a stepwise manner, and a hole is opened in the side wall of the toro container and a valve is attached to allow water flowing on the surface of the toro container to overflow. In addition, the water that has permeated the soil is allowed to flow out through a valve to generate a flow of water in each of the toro containers, thereby cultivating wasabi.

[0003]

However, in the cultivation method using the tatami-stone-type aoi-da, the cultivation place is specified in an extremely narrow place or is easily affected by natural weather conditions and disasters. In addition to the difficulty of stable cultivation, it is also inferior in terms of productivity such as the amount and cost of wasabi, such as the need to rebuild the wasabi field every predetermined period due to changes in the structure of the wasabi field over time. There was a problem.

[0004] In addition, in a wasabi cultivation system using a toro container, although the inconvenience of the tatami-stone-type wasabi field described above can be solved to some extent, it has the following problems. In other words, using water from a spring area as water for cultivation, introducing it into a toro container with a PVC pipe, hanging it from the upper toro container to the lower toro container, and continuing to flow in the same way as Yasuda Therefore, for example, cultivation can only be performed near water-rich springs, which limits the cultivation location and is inferior in productivity. Because it is affected by the water quality of the land, it is difficult to cultivate the wasabi stably.

The present invention has been made in view of such circumstances, and an object of the invention described in claim 1 is to enable efficient use of tap water and the like, without being restricted by a cultivation place.
It is an object of the present invention to provide a wasabi cultivation apparatus capable of easily and stably cultivating wasabi having excellent productivity. The object of the invention described in claim 2 is, in addition to the object of the invention described in claim 1,
An object of the present invention is to provide a device for cultivating wasabi, which can easily obtain water having the optimum quality for cultivating wasabi.
Another object of the present invention is to provide a wasabi cultivation device that can be formed at a low cost by simplifying the configuration of the water circulation device. Further, the object of the invention described in claim 4 is, in addition to the objects of the inventions described in claims 1 to 3, in addition to the invention that a water flow from the cultivation container can be reliably performed and a good flow of water can be generated in the container. A cultivation device is provided, and the object of the invention described in claim 5 is, in addition to the objects of the inventions described in claims 1 to 4, a cultivation device itself that can be made compact so as to save installation space and improve production efficiency. A cultivation device is provided. It is another object of the present invention to provide, in addition to the objects of the first to fifth aspects of the present invention, a device for cultivating a mushroom that can be easily cultivated indoors.

[0006]

Means for Solving the Problems In order to achieve the above object, the present invention according to claim 1 of the present invention provides a cultivation container having a bottom wall and a side wall for accommodating a soil for cultivation of wasabi. A water circulation device that stores the water discharged from the container in the tank, filters the water in the tank, and supplies the filtered water to the cultivation container again.The water circulation device controls the water temperature, the dissolved oxygen amount, and the pH of the water, respectively. And supplied to the cultivation container.

[0007] With such a configuration, the seedlings of the raspberry planted in the soil for cultivation of the raspberry housed in the cultivation container grow while being supplied with water by the water circulation device. The temperature of the supplied water, the amount of dissolved oxygen, and the pH are controlled, and the quality of the supplied water is set to be substantially the same as the quality of the water flowing into the natural forest. As a result, a well-grown wasabi is stably produced, and the water supplied to the cultivation container is circulated and used in the water circulating device. For example, tap water can be used, and the cultivation place can be used. By arranging the cultivation container at an appropriate position such as indoors, it is possible to easily cultivate the wasabi.

[0008] In the invention according to claim 2, the water circulation device controls a water temperature by operating a water temperature regulator provided in the tank and discharges air into water from an air supply pipe provided in the tank. By controlling the amount of dissolved oxygen, the pH is controlled by a filter medium provided in the tank. With this configuration,
With the water temperature regulator, the air supply pipe, and the filter medium, it is possible to easily obtain water having substantially the same water quality as the water flowing through the wasabi field in the natural world, and the cultivation container is constantly supplied with water optimal for growing the wasabi.

According to a third aspect of the present invention, the water circulation device has a tank for collecting and storing water flowing out of the cultivation container, and a water supplied from the collection tank passing through a filter medium. It is characterized by having a filtration tank for filtering, and a supply tank for storing the clean water filtered by the filtration tank and supplying it to the cultivation container. With this configuration, the recovery tank, the filtration tank, and the supply tank can be integrally formed in the tank of the water circulation device, and the configuration of the water circulation device is simplified and inexpensively formed.

According to a fourth aspect of the present invention, in the cultivation container, the height of one side wall of the cultivation container is reduced so that water flowing on the surface of the soil is discharged from the upper end of the side wall, and a large number of drains formed on the bottom wall. It is characterized in that water permeated into the soil through the holes is discharged through a gutter provided at the bottom of the bottom wall. With this configuration, the water supplied to the cultivation container flows along the surface of the soil, flows out from one low side wall, is collected in the tank, and the water that has permeated the soil is The water flows out from a number of drain holes provided in the bottom wall of the cultivation container into a lower gutter, and is collected in the tank via the gutter. Thereby, the water supplied to the cultivation container can be reliably discharged into the tank of the water circulation device, and a good flow of water is generated in the cultivation container.

[0011] The invention according to claim 5 is characterized in that the cultivation container is placed in a state of being placed on a water circulation device. With this configuration, since the cultivation containers are placed on the water circulation device in a mounted state, the cultivation device itself can be formed compactly, the installation space in the cultivation room is reduced, and space can be saved, In addition, the production amount of the wasabi with respect to the area is increased, and the production efficiency is further improved.

The invention according to claim 6 is characterized in that an illuminating device capable of irradiating illumination light toward the cultivation container is disposed above the cultivation container. With this configuration, the light necessary for cultivating the wasabi can be obtained with the illumination light of the illumination device arranged at the top of the cultivation container,
Cultivation of wasabi can be easily performed indoors.

[0013]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 6 show an embodiment of a wasabi cultivation apparatus according to the present invention, FIG. 1 is a schematic configuration diagram thereof, FIG. 2 is a perspective view of a cultivation container, FIG. 3 is a perspective view of a main part of a water circulation device, FIG. 4 is a schematic plan view of the installation state of the wasabi cultivation apparatus, FIG. 5 is a schematic side view thereof, and FIG. 6 is a graph showing various data of the results of the cultivation experiment.

In FIG. 1, a wasabi cultivation apparatus 1 comprises a crushed stone,
Container body 4 in which soil 2 consisting of gravel and river sand is stored
Cultivation container 3, a lighting device 5 disposed above the container body 4 of the cultivation container 3 and irradiating the surface of the soil 2 with illumination light, and a water circulation device 6 for circulating the water S to the cultivation container 3
And a control device 7 for controlling these.
In FIG. 1, a solid line indicates connection of a piping system, and a dotted line indicates connection of an electric system.

As shown in FIG. 2, the cultivation container 3 has a container body 4 formed of a bottom wall 4a and surrounding side walls 4b to 4e. A water storage section 8 for temporarily storing water S supplied into the container body 4 is provided integrally, and an overflow pipe 9 for adjusting the water level is arranged in the water storage section 8. Further, the height of the side wall 4b on the upstream side of the flow of the water S and the side wall 4d on the downstream side of the container body 4 is set lower than the side walls 4c and 4e by a predetermined dimension, so that the height of the side wall 4c Outflow part 11a is formed. Further, a large number of drain holes 12 are formed in the bottom wall 4a of the container body 4, and the drain holes 1
A gutter 13 is provided at a lower portion of the bottom 2 (that is, a lower portion of the bottom wall 4a) as an outflow passage whose bottom surface is inclined downward from the side wall 4b toward the side wall 4d, and a downstream end of the gutter 13 flows out. The portion 11b is formed.

As shown in FIG. 1, the illuminating device 5 includes a plurality of illuminating lamps 5a for irradiating a predetermined light such as a fluorescent lamp or an incandescent lamp. By lighting in a predetermined pattern at, for example, 800
It is configured such that illumination light of 0 lux to 10000 lux is applied to the surface of the soil 2.

As shown in FIG. 3, the water circulation device 6
One large tank 15 is divided into two partition plates 16a, 16b.
, A collection tank 15a for collecting and storing the water S from the container body 4, a filtration tank 15b for filtering the water S supplied from the collection tank 15a, and a cleaning tank filtered by the filtration tank 15b. And a supply tank 15c for storing fresh water S. As shown in FIGS. 1 and 3, a water temperature sensor 17 for detecting a water temperature and a cooling coil 18 as a water temperature regulator for adjusting the water temperature in the recovery tank 15a are arranged inside the recovery tank 15a. And the cooling coil 18 is connected to the collection tank 15a.
It is connected to a cooler 19 located outside.

The collection tank 15a is provided with a partition plate 16a.
Is formed with an inclined surface, and a cylindrical overflow portion 20 is provided at an upper portion on one end side of the inclined surface, and the height of the side wall is provided on the filtration tank 15b side of the overflow portion 20. The overflow port 20a is formed by setting it lower than the others. The water S flowing from below into the overflow section 20 is supplied from the overflow port 20a into the filtration tank 15b. A drain valve 21 is connected to the bottom of the collection tank 15a.

A partition plate 16 is provided in the filtration tank 15b.
By mounting on the angle 22 fixed at a predetermined height position of a, 16b, for example, a porous filter medium 23 as a filter medium having a filtration capacity of 1% with respect to the total water amount is detachably housed and arranged. I have. The water S supplied from the collection tank 15a on the upper surface side by the porous filter medium 23
Is filtered by passing through to the lower surface side, becomes clean water S of a predetermined pH, and is stored in the lower part of the filtration tank 15b. The lower part of the filtration tank 15b is provided with a partition plate 16b.
By lifting the lower part of the tank from the bottom of the tank 15,
A supply port 24 for water S to the supply tank 15c is formed.

An air supply pipe 26 for injecting air into the clean water S inside the supply tank 15c is arranged in the supply tank 15c, and the air supply pipe 26 is connected to a blower device 27. By operating the blower device 27, air is supplied to the air supply pipe 26,
This air is injected from a number of injection holes of the air supply pipe 26 to supply oxygen to the water S, and the dissolved oxygen amount is adjusted.

In the supply tank 15c, an end of a pipe 29 connected to a tap water supply valve 28 is arranged, and a lower end of a pipe 31 connected to a suction port of a circulation pump 30 is provided on a bottom side thereof. Are located. The other end of the pipe connected to the outlet of the circulation pump 30 is connected to the water storage unit 8 of the cultivation container 4. In the supply tank 15c, a sensor 32 for measuring the pH of the stored water S and a sensor 33 for measuring the dissolved oxygen amount (FIG. 1)
) Are arranged, and these are all control devices 7.
It is connected to the.

The tank 15 of the water circulating apparatus 6 and the cultivation container 3 having the above-described structure are placed in a cultivation room with the cultivation container 3 placed on the tank 15 as shown in FIGS. And the lower end of the overflow pipe 9 of the cultivation container 3 is connected to the supply tank 15 c of the tank 15.
The outflow portions 11a and 11b of the cultivation container 3 are located above the collection tank 15a of the tank 15.

The control device 7 includes a timer (not shown)
It has a relay, a condition setter for setting a reference value of temperature, pH or dissolved oxygen amount, various indicator lights, and the like. As shown in FIG. 1, the water temperature sensor 17, the sensor 32,
33 and a room temperature sensor 34 for detecting the room temperature of the cultivation room, and the cooler 19, the drain valve 21, the blower device 27, the tap water supply valve 2
8 and the circulation pump 30 are connected. Note that, for example, a sequencer, a microcomputer, or the like may be used for the control device 7 in addition to the above components.

Next, the operation of the wasabi cultivation apparatus 1 will be described focusing on the flow of the water S. First, the soil 2 is stored in the container main body 4 of the cultivation container 3, and a predetermined amount of tap water is supplied from the tap water supply valve 28 of the water circulation device 6 into the supply tank 15c. The supply amount of the tap water is the amount of the soil 2 stored in the container body 4 when the circulation pump 30 is operated.
Is set to such an extent that the water S flows slowly on the surface of.

The inflow portion 1 of the side wall 4b of the container body 4
0 is supplied from the side wall 4 while penetrating into the soil 2.
The water S flowing to the d side and permeating into the soil 2 and reaching the bottom wall 4a of the container body 4 flows downward from the drain hole 12 provided in the bottom wall 4a. The water S flowing out from the bottom wall 4a is
It is accommodated in a gutter 13 arranged below the bottom wall 4a and flows in the direction of the discharge portion 11b along the inclination thereof, and the discharge portion 11b
Tank 15a of the water circulation device 6
Collected inside. On the other hand, the water S flowing on the surface of the soil 2 of the container body 4 flows downward from the outflow portion 11a at the upper end of the side wall 4d, and is collected in the collection tank 15c.

The water S collected in the collection tank 15a
The water temperature is detected by the water temperature sensor 17, and a signal thereof is input to the control device 7 and compared with a reference value (for example, an upper limit value) preset in the control device 7. If the detected water temperature is higher than the reference value and is not suitable for the growth of wasabi, an operation signal is output from the control device 7 to the cooler 19 to operate the cooler 19, and the cooling coil 1 is turned on.
8, the water S in the recovery tank 15a is cooled. By the on / off operation of the cooler 19 based on the detection signal of the water temperature sensor 17, the temperature of the water S supplied to the cultivation container 3 is controlled.

The water S whose temperature has been adjusted in the recovery tank 15a flows from the overflow section 20 to the overflow port 20.
The water S is supplied to the upper surface side of the porous filter medium 23 of the filtration tank 15b via a, and this water S is filtered by passing through the porous filter medium 23 downward to become clean water S. And
The water S is supplied from the lower part of the filtration tank 15b into the supply tank 15c via the supply port 24, and the pH of the water S
Is detected and measured by the sensor 32, and the dissolved oxygen amount is detected and measured by the sensor 33.

The data measured by the sensors 32 and 33 is input to the control device 7 and compared with a preset reference range or reference value. For example, when the pH falls outside the reference range, a warning signal is issued. The indicator light is turned on, and the porous filter medium 2
The operator is notified that 3 is the replacement time. Further, when the dissolved oxygen amount falls below the reference value, the blower device 27 is operated by the control signal of the control device 7, and the air supply pipe 2
Air (oxygen) is injected from 6 to increase the dissolved oxygen amount to a reference value or more. Thereby, the pH and the dissolved oxygen amount of the water S supplied to the cultivation container 3 are controlled to predetermined values suitable for cultivation of wasabi.

The water S whose water temperature, pH and dissolved oxygen amount have been set to predetermined values in this way is pumped up by the operation of the circulation pump 30 and supplied into the water storage section 8 of the cultivation container 3. Then, the water level of the water S in the water storage section 8 is adjusted by the height position of the overflow pipe 9, and a predetermined amount of the water S flows from the inflow section 10 above the side wall 4 a into the container body 4 by a predetermined amount. It is supplied continuously. Thereby, the water S circulates between the cultivation container 3 and the tank 15 of the water circulation device 6.

When the amount of water decreases due to the use (evaporation, etc.) of the water S for a predetermined period, the tap water is replenished by the tap water supply valve 28, but this replenishment is not limited to manual operation. It is also possible to provide a water level sensor in the storage section 8 and automatically operate and replenish the tap water valve 28 based on the water level sensor. In addition, when one cultivation is completed or the circulating water S becomes dirty, the collection tank 15a is used.
Is opened, the water S is replaced.

Further, in the above description, the case where the pH of the water S in the supply tank 15c and the amount of dissolved oxygen are automatically measured and the blower device 27 is automatically operated has been described. Water S in tank 15c
Can be manually collected, measured with a predetermined measuring instrument, and based on the measurement result, the porous filter medium 23 can be replaced, the blower device 27 can be operated, or the like.

Here, a description will be given of the results of a cultivation experiment of wasabi using the apparatus for cultivating wasabi. First, the cultivation container 3
Various conditions and the like in the water circulation device 6 were set as shown in Table 1 below, and the room temperature, the water temperature of the water S, the pH and the dissolved oxygen amount (DO) were observed for 29 days after the seedling was planted. The result is the data shown in FIG. 6, and the average value, the maximum value, and the minimum value of each parameter are shown in Table 2 below.

[0033]

[Table 1]

[0034]

[Table 2]

It was found that the wasabi obtained in this cultivation experiment was not inferior to or superior to the one cultivated in the tatami-stone-type wasabi field. In FIG. 6, the water temperature is relatively low at the beginning, but stabilizes with the number of elapsed days. Conversely, the dissolved oxygen amount DO is initially high, but then stabilizes. Therefore, the water temperature is set to about 10 ° C. to 13 ° C. (preferably, 12 ° C. to 13 ° C. in a stable region in FIG. 6) by the water circulation device 6.
By maintaining the pH around 8.1 to 8.4 and the dissolved oxygen amount DO around 8.1 to 11.8 (preferably around 10 in the stable region in FIG. 6), Cultivation can be carried out in the same way as in Aoi-da.

As described above, the wasabi cultivation apparatus 1 of the above embodiment is described.
In the water circulation device 6 connected to the cultivation container 3, the water temperature, pH, and dissolved oxygen amount of the water S supplied to the cultivation container 3 are controlled, and the water quality of the water S is adjusted to a water quality suitable for the growth of wasabi. Because it can be used, tap water can be used efficiently for cultivating wasabi, so that there is no restriction on the cultivation place, for example, the cultivation place can be cultivated in an indoor cultivation room, and the natural environment is affected. It can be cultivated with almost constant water quality S that is not performed, and can easily and stably produce a good quality wasabi.

In particular, since the illuminating device 5 capable of irradiating the illuminating light to the soil 2 in the cultivation container 3 is disposed, by illuminating the illuminating device 5 in a predetermined pattern, the light substantially equal to the natural world is obtained. The conditions can be easily obtained, and the water temperature, pH and dissolved oxygen amount of the water S to be used are controlled with high accuracy by the control device 7, so that the wasabi can be more favorably grown indoors. For example, it is possible to greatly improve the productivity of wasabi.

Further, the side wall 4d of the container body 4 of the cultivation container 3
An inclined gutter 1 having an outflow portion 11a at an upper portion and an outflow portion 11b at a downstream side below a bottom wall 4a of the container body 4.
3, the water S flowing on the surface of the soil 2 and the water S permeated into the soil 2 are supplied to the outflow portions 11 a and 11, respectively.
b, it can be reliably collected in the collection tank 15a of the water circulation device 6, and a flow of water S close to a natural flow can be generated in the cultivation container 3. As a result, the water S can be favorably circulated between the cultivation container 3 and the tank 15 of the water circulation device 6, and the cultivation of the wasabi with the clean water S can be performed at all times.

Further, a collection tank 15a, a filtration tank 15b, and a supply tank 15c are provided in the tank 15 of the water circulation device 6.
And the water storage unit 8 is integrally formed in the container body 4, so that the configuration of the water circulation device 6 and the configuration of the cultivation container 3 can be simplified. In particular, the supply of water S from the water storage section 8 of the cultivation container 3 to the container main body 4 and the collection tank 15a to the filtration tank 15b and the filtration tank 1
Since the supply of the water S from the tank 5b to the supply tank 15c is performed by the head of the water level and the pressure, only one circulation pump 30 needs to be used for the circulation of the water S, and the configuration is further simplified. This makes it possible to form the wasabi cultivation apparatus 1 at low cost.

Also, since the cultivation container 3 can be placed and installed on the tank 15 of the water circulation device 6, the installation area of the wasabi cultivation device 1 can be reduced in space, and the amount of isabi to the area can be reduced. The production amount can be increased, and the production efficiency can be further improved.

FIGS. 7, 8 and 9 show modified examples of the cultivation container of the wasabi cultivation apparatus and the tank of the water circulating apparatus according to the present invention. explain. First, the feature of the cultivation container 3 shown in FIG. 7 is that the bottom wall 4a of the container main body 4 is formed in a step shape in which the side wall 4b side is high and the side wall 4d side is low, and the soil 2 is formed on each step portion with a predetermined thickness. It is at the point where it is accommodated and arranged. Also in the cultivation container 3 of this embodiment, in addition to obtaining the same operation and effect as the above-mentioned embodiment, since the surface of the soil 2 is stepped, the water S flows well on the surface of the soil 2 and is discharged. The effect that the water S flows out from the portion 11a and the flow of the water S in the container body 4 becomes more favorable is obtained.

The tank 15 of the water circulating device 6 shown in FIGS. 8 and 9 is provided with a recovery tank 15a on one side wall by a partition plate 16a, and a partition plate 16b is fixed to the partition plate 16a in an orthogonal state. A filtration tank 15b and a supply tank 15c are provided on both sides of the partition plate 16b, and a water receiving portion 36 is provided on the collection tank 15a side of the filtration tank 15b in which a porcelain bar 35 as a filter medium is disposed. Further, a supply path 37 is provided on the opposite side of the water receiving portion 36 of the filtration tank 15b, and the filtered water S is supplied to the supply tank 15 through the supply path 37.
c, and the cooling coil 18, the water temperature sensor 17, and the air supply pipe 26 are arranged in the supply tank 15c.

Also in this embodiment, the water temperature, pH and dissolved oxygen amount of the water S supplied to the cultivation container 3 can be controlled, and the same operation and effect as the water circulation device 6 of the above embodiment can be obtained. it can. As described above, the configuration such as the shape of the cultivation container 3 and the tank 15 of the water circulating device 6 and the arrangement of each part according to the present invention can be appropriately changed, and the collection tank 15a, the filtration tank 15b, and the supply tank 15c.
Can be separately formed (or plural) without being integrated. Further, the type of the filter medium to be used, the shapes of the cooling coil 18 and the air supply pipe 26 in the above embodiment are also examples, and can be variously changed without departing from the gist of each invention according to the present invention. .

[0044]

As described above in detail, according to the first aspect of the present invention, the water temperature, the dissolved oxygen amount and the pH are controlled by the water circulating device in the cultivation container in which the soil for cultivating the wasabi is stored. Since water is circulated and supplied, tap water can be used as water, and cultivation can be carried out in an appropriate place without restriction on the installation place of the cultivation container. The water quality of the water flowing into the rice field can be set to be almost the same, and the wasabi can be easily and stably produced.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the invention, the water quality flowing through the natural waters of Yaoida is controlled by the water temperature regulator, the air supply pipe and the filter provided in the tank. Since water having substantially the same water quality can be easily obtained, it is possible to constantly supply the cultivation container with water optimal for the growth of wasabi.

According to the third aspect of the invention, in addition to the effects of the first or second aspect, the recovery tank, the filtration tank, and the supply tank are integrally formed in the tank of the water circulation device. Therefore, the configuration of the water circulation device can be simplified, and the cultivation device itself can be formed at low cost.

According to the fourth aspect of the present invention, in addition to the effects of the first to third aspects, of the water supplied to the cultivation container, water flowing on the surface of the soil has a low height. The water that has flowed out of the side wall and is collected in the tank, and the water that has infiltrated the soil has flowed out through a number of drain holes provided in the bottom wall of the cultivation container into the lower gutter, and is collected in the tank via this gutter. Therefore, the water supplied to the cultivation container can be reliably discharged into the tank of the water circulation device, and a good flow of water can be generated in the cultivation container.

According to the fifth aspect of the present invention, in addition to the effects of the first to fourth aspects, since the cultivation containers are placed on the water circulation device in a mounted state, the cultivation device itself can be made compact. It can be formed, the installation space in the cultivation room can be reduced and the space can be saved, and the production efficiency of the wasabi per area can be increased to improve the production efficiency.

According to the sixth aspect of the present invention, in addition to the effects of the first to fifth aspects of the present invention, the light necessary for cultivation of wasabi is illuminated by the illumination light of the illuminating device arranged above the cultivation container. Since it can be obtained, effects such as easy cultivation of isabi indoors are exhibited.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of a wasabi cultivation apparatus according to the present invention.

FIG. 2 is a perspective view of the cultivation container.

FIG. 3 is a perspective view of a main part of the water circulation device.

FIG. 4 is a schematic plan view of an installation state of the wasabi cultivation apparatus.

FIG. 5 is a schematic side view of the same.

FIG. 6 is a graph showing various data of the results of the cultivation experiment.

FIG. 7 is a schematic sectional view showing a modification of the cultivation container.

FIG. 8 is a schematic plan view showing a modification of the water circulation device.

FIG. 9 is a view taken on line AA of FIG. 8;

[Explanation of symbols]

 1 ··········································· Cultivation container 4 ······· -Container body 4a-Bottom wall 4b-4e-Side wall 5-Lighting device 5a-Lighting lamp 6 water circulation device 7 control device 8 water storage unit 9 · Overflow pipe 10 ······ Inflow section 11a, 11b ··· Outflow section 12 ····· Drain hole 13 ····· Gutter 15 ··· ····························································································································・ Water temperature sensor 18・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Cooler 23 ・ ・ ・ ・ ・ ・ ・ ・ ・ Porous filter medium 26 ・ ・ ・ ・ ・ ・ ・ ・ ・ Air supply pipe 27 ・ ・ ・ ・ ・ ・ ・ ・ ・ Blower Apparatus 30 circulating pump 32, 33 sensor 34 room temperature sensor 35

Claims (6)

[Claims] 1. A cultivation container comprising a bottom wall and a side wall for accommodating soil for cultivating a mushroom, storing water flowing out of the cultivation container in a tank, and filtering the water in the tank to filter the cultivation container. And a water circulation device for supplying water to the cultivation container, wherein the water circulation device controls the water temperature, the dissolved oxygen amount, and the pH of the water and supplies the water to the cultivation container. 2. The water circulation device according to claim 1, wherein the water circulation controller controls a water temperature by operating a water temperature regulator provided in the tank, and discharges air into the water from an air supply pipe provided in the tank. 2. The apparatus of claim 1, wherein the pH is controlled by a filter medium provided in the tank. 3. The water circulation device according to claim 1, wherein the water circulation device has a collection tank for collecting and storing water flowing out of the cultivation container, and a filtration tank for filtering the water supplied from the collection tank by passing the water through a filter medium. 3. The apparatus of claim 1, further comprising: a supply tank for storing clean water filtered by the filtration tank and supplying the stored water to a cultivation container. 4. 4. The cultivation container has a side wall having a reduced height, allowing water flowing on the surface of the soil to flow out from the upper end of the side wall, and penetrating into the soil through a number of drain holes formed in the bottom wall. The wasabi cultivation apparatus according to any one of claims 1 to 3, wherein the drained water flows out through a gutter provided at a lower portion of the bottom wall. 5. The wasabi cultivation apparatus according to claim 1, wherein the cultivation container is placed on the water circulation device in a state of being placed. 6. A device for cultivating wasabi according to claim 1, wherein an illumination device capable of irradiating illumination light toward said cultivation container is disposed above said cultivation container. .