JPH0211212B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method and apparatus for cultivating wasabi that can freely grow and cultivate wasabi without being restricted by region, climate, or location.

(Prior Art) Cultivation of wasabi has traditionally required a large amount of water flow, and since it is a semi-shady plant, the conditions for viewing it are difficult, and moreover, it is sensitive to temperature changes, so there is a large difference between successful and unsuccessful crops. In addition, because the growing period is long (1 to 2 years), it can only be cultivated in specific regions and locations that suit the climatic conditions. Furthermore, diseases, especially those caused by viruses and bacteria, can have fatal consequences in the cultivation of wasabi. In particular, if a completely controlled cultivation method is used for the purpose of vegetative propagation, and the rice is soaked with viruses or bacteria in the water, the bacteria will be instantly transmitted to the environment, resulting in an extremely low productivity. The propagation of wasabi not only causes the wasabi's infestation and skin diseases, reducing its value as a product, but also ends the life of the wasabi.

By the way, as an artificial method for cultivating wasabi, the method disclosed in Japanese Patent Application Laid-Open No. 53-38531 is known.
This method involves tilting a hydroponic tank filled with gravel, plastic particles, etc. and planting wasabi.Water is supplied from a high point in the tank and circulated through the filled material, which is then supplied to the rhizomes of the wasabi and flows down. This is a method of cultivating wasabi by circulating water back into the tank.

(Problems to be Solved by the Invention) In such conventional methods, no countermeasures are taken against the above-mentioned diseases caused by viruses and bacteria, resulting in problems such as a decline in the quality and productivity of wasabi. The dot was hot.

(Means for Solving the Problems) The present invention has been made to solve the above problems, and in addition to being able to accurately control water quality in the artificial cultivation of wasabi, there are also restrictions on region and climate. To provide a method and device for cultivating wasabi of good quality and high productivity, which can shorten the growing period compared to natural wasabi without being damaged by wasabi, prevent the occurrence of diseases caused by viruses and bacteria, and have high productivity. With the goal.

In order to achieve the above object, the cultivation method according to the present invention involves placing wasabi containing rhizomes in a culture net up to the bottom of the pipe in a culture cylinder protruding from the top surface of the pipe of a culture unit consisting of a pipe, and then cultivating the wasabi containing fertilizer. The alkalinity and fertilizer concentration of the wastewater are selected in a check tank, and bacteria etc. are removed using a filter. After passing through an ion exchange tank, the water is cultured again as culture water set at a specified water temperature. It is characterized by circulating to the unit.

In addition, the cultivation equipment consists of a culture unit with a culture tube on the top surface of the pipe through which culture water flows, a check tank that stores wastewater and detects alkalinity, fertilizer concentration, water temperature, etc., and a check tank that detects bacteria in the wastewater in the check tank. It is characterized by consisting of a filter for removing water, an ion exchange tank, and a heating device for setting the water temperature.

(Operation) The present invention configured as described above operates as follows.

The wasabi cultivated in each cultivation unit is cultivated in an independent cultivation tube, making it possible to prevent the transmission of viral and bacterial diseases.

(Example) FIG. 1 is an overall view of a cultivation apparatus showing an example of the present invention, and FIG. 2 is an enlarged sectional view of a cultivation unit. In the figure, A is a culture unit consisting of a plurality of pipes 1, and B is a culture unit consisting of a single pipe 1 connecting the culture units A.
These culture units A and B are made by connecting pipes 1 made of plastic with elbows or sockets 2, and a culture cylinder 3 is integrally provided on the top surface of each pipe 1 at a predetermined interval to communicate with the inside of the pipe 1. are doing. Further, the surface of each pipe 1 is coated with a heat insulating material 4, and a ventilation hole 5 is opened in the culture cylinder 3. A certain amount of culture water 6 flows in the pipe 1 so that an air layer exists above it.
A full plate 7 is fitted into the pipe 1 to obtain a predetermined amount of water.

Wasabi 10 with rhizomes 9 placed in cylindrical culture nets 8 is housed in each culture cylinder 3 of culture units A and B and cultured. There are two ways to cultivate this culture.
There are cases in which the rhizomes 9 are placed directly in the culture net 8, and cases in which the culture net 8 is filled with a filler 11 made of a molded product such as perlite or diatomaceous earth, and the rhizomes 9 are placed therein. In the former case, the lower part of the rhizome 9 is made to touch the flow of culture water 6, and in the latter case, the rhizome 9 is made to float from the culture water 6. That is, in the latter, the culture water 6 sucked up by the filler 11 by capillary action is supplied to the rhizome 9.

Reference numeral 12 denotes a check tank in which the waste water of the culture water 6 from the final culture unit A is stored using an aerator 13. It is equipped with a control sensing part 14 for preventing self-poisoning and checking for inhibitors accumulated during circulation, and a supply pipe 16 for replenishing fertilizer from a fertilizer tank 15 in the check tank 12.
17 is a water tap, and 17a is a drain plug.

A drain pipe 18 is connected to the check tank 12, and this drain pipe 18 is connected to a suction pump 19, a filter 20 for removing bacteria and other impurities from the waste water, an ion exchange tank 21 for removing the above-mentioned inhibitors, and a water temperature A heat exchanger 22 is connected to the heat exchanger 22 to maintain the water at a predetermined temperature, and the waste water discharged from the heat exchanger 22 is returned to the culture unit A from the supply pipe 23 as culture water 6. In addition, in the present invention, the alkalinity in the culture water is PH6.3 to 7.3 (PH4 for bacteria prevention).
~3.5), the water temperature is set at 12°C ± 1°C, and the temperature inside the house where this device is installed is recommended to be in a humid condition of 20 to 25°C. 24 is 2000-3000
This is a lighting device that provides artificial light using Lutx, and the lighting time is controlled by a timer.

The method for cultivating wasabi according to the present invention is to flow culture water 6 into culture units A and B consisting of pipes 1, and the wasabi rhizomes 9 in the culture net 8 directly absorb nutrients from the flowing culture water 6. Alternatively, they grow by absorbing nutrients from the culture water 6 sucked in by the filler 11. The wastewater that has passed through the culture units A and B is temporarily stored in the check tank 12, where the alkalinity, water temperature, fertilizer concentration, and inhibitors in the wastewater are controlled.When there is a shortage of fertilizer, the wastewater is collected from the fertilizer tank 15. Along with receiving supplies,
The water temperature is adjusted by a heat exchanger 22, and the inhibitor is removed by an ion exchange tank 21. Further, bacteria such as bacteria and other impurities in the waste water are removed by the filter 20. The wastewater thus passed through the heat exchanger 22 and maintained at a predetermined water temperature is supplied to the culture units A and B again as culture water 6.

In the wasabi cultivation device configured as above,
Wasabi 10 is cultivated independently in culture units A and B, and especially in wasabi cultivation in which filler 11 is stored in culture net 8, the culture water 6 supplied to filler 11 is Once sucked up, it does not fall down, so it is possible to prevent the transmission of viruses, etc. to other wasabi 10. In addition, by creating a space between the ventilation holes 5 in the culture tube 3 and the culture tube 3,
The healthy growth of rhizomes 9 can be achieved by suppressing unnecessary hair root growth. Furthermore, since the pipes 1 of culture units A and B are covered with a heat insulating material 4, there is almost no fluctuation in water temperature.

Note that the present invention is applicable to the piping 24 of culture units A and B.
A culture tank 25 may be provided in the middle.
This culture tank 25 is connected to the water supply pipe 2 as shown in FIG.
The culture water 6 is received from the drain pipe 27 and returned to the pipe 28 from the drain pipe 27. Furthermore, a support rod 29 is passed to the culture tank 25, and a culture net 8 is inserted into the support rod 29.
is supported by the hook 8a and suspended. Note that the net 8 may be used with or without the filler 11 depending on the need.

(Effects of the Invention) As explained above, the present invention uses a circulating culture water system, so the amount of water used is extremely small, water quality can be accurately controlled, and there is no restriction by region, climate, or location. Moreover, the growing period can be shortened to 2/3 to 1/2 compared to natural products. Also,
It prevents the occurrence of diseases caused by viruses and bacteria, and produces high-quality, highly productive wasabi. Furthermore, in the cultivation apparatus of the present invention, since the cultivation unit is made up of pipe connections, there are advantages such as the ability to freely change the scale and form of the cultivation unit.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a schematic overall view of a cultivation device, FIG. 2 is an enlarged sectional view of a culture unit, and FIG. 3 is an enlarged perspective view of a culture tank. In the figure, A and B are culture units, 3 is a culture tube, and 4 is a culture unit.
5 is a heat insulating material, 5 is a ventilation hole, 6 is a culture water, 8 is a culture net, 9 is a wasabi rhizome, 10 is a wasabi, 11 is a filling material, 12 is a check tank, 14 is a control sensor, 20 is a filter, 21 is an ion exchange tank, and 22 is a heat exchanger.

Claims (1)

[Scope of Claims] 1. A state in which wasabi containing rhizomes in culture nets are placed in culture cylinders protruding from the top surface of each pipe at predetermined intervals in a culture unit consisting of a single or multiple pipes, up to the bottom of the pipes. In this process, sterile culture water containing fertilizer at a predetermined temperature is flowed in the pipe so that an air layer exists above it, and the wastewater that has passed through the culture unit is stored in a check tank.
The alkalinity and fertilizer concentration are selected here, and after that, bacteria and other impurities are removed using a filter, the water is then set at a predetermined temperature via an ion exchange tank, and then circulated back to the culture unit as culture water. A method of cultivating wasabi characterized by: 2. The method for cultivating wasabi according to claim 1, wherein the lower part of the rhizome of the wasabi directly stored in the culture net is exposed to the flow of culture water. 3. The method for cultivating wasabi according to claim 1, wherein the wasabi stored in the culture net via a filler supplies the culture water sucked into the filler to the wasabi rhizomes. 4 Claim 1 where the water temperature is 12℃±1℃
How to cultivate wasabi as described in section. 5 Claim 1 in which the alkalinity is PH6.3 to 7.3, and in the case of bacteria prevention, PH4 to 3.5
How to cultivate wasabi as described in section. 6. The method for cultivating wasabi according to claim 1, wherein the ion exchange tank prevents self-poisoning due to organic wastes of the plants and removes inhibitors that accumulate during circulation. 7. The method for cultivating wasabi according to any one of claims 1 to 4, wherein the room temperature during wasabi cultivation is 20 to 25°C. 8. The method for cultivating wasabi according to claim 1, wherein a culture tank for cultivating wasabi stored in a culture net is provided in a tank in which culture water flows in the middle of the pipe. 9. The method for cultivating wasabi according to any one of claims 1 and 7, wherein the wasabi cultivation is carried out in a greenhouse isolated from outside air. 10 A culture unit consisting of a pipe or a plurality of pipes through which culture water flows, and having culture tubes protruding from the top surface of the pipe at predetermined intervals for accommodating wasabi containing culture nets, and a culture unit for storing waste water from the culture unit. , a check tank equipped with a control sensor that supplies fertilizer and detects alkalinity, fertilizer concentration, water temperature, etc. in waste water; a filter that removes various bacteria and impurities from the waste water supplied from the check tank; Equipped with an ion exchange tank that prevents self-poisoning by organic waste and removes inhibitors that accumulate during circulation, and a heating device that sets the water temperature to a predetermined temperature, the wastewater that has passed through the heat exchanger is returned to the culture unit as culture water. A wasabi cultivation device characterized by a circulation system. 11. The wasabi cultivation device according to claim 10, wherein the surface of each pipe is coated with a heat insulating material.