JPS6283830A - Culture of horseradish - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a wasabi cultivation method for artificially cultivating wasabi using a cultivation tank, and in particular, by controlling the water level inside the tank. This invention relates to a method for easily and sufficiently supplying wasabi rhizomes with the air necessary for wasabi cultivation.

(Prior Art) A method of artificially cultivating wasabi using a cultivation tank is generally known.

This type of cultivation method involves, for example, planting wasabi on gravel piled up in a cultivation tank, constantly supplying water into the cultivation tank, and keeping the water level slightly below the gravel. The water was allowed to overflow through a hole in the side wall of the tank. However, this cultivation method has the disadvantage that it is difficult to supply oxygen, which is essential for the growth of wasabi, to the rhizomes of wasabi because the tank is always filled with water. Therefore, in order to compensate for the above-mentioned drawbacks, conventional methods have been adopted in which the entire tank is installed with a certain slope to increase the flow rate of the water inside the tank, thereby supplying more dissolved oxygen in the water to the wasabi rhizomes. was.

(Problems to be Solved by the Invention) However, in this method, in order to allow wasabi rhizomes to absorb a large amount of dissolved oxygen in water, a member is required to provide a slope to the wasabi cultivation tank, and furthermore, the above-mentioned A large amount of water is required to create a slope in the cultivation tank and increase the flow rate of water in the cultivation tank. For this reason, there is a problem in that various expenses associated with cultivation due to the above-mentioned materials, amount of water, etc. are required to match the harvest amount of wasabi, and the production cost increases.

Therefore, the object of the present invention is to be able to easily and sufficiently supply the air necessary for wasabi cultivation to wasabi rhizomes planted in a cultivation tank, and thus to reduce the production cost of wasabi cultivation. Our goal is to provide a method for growing wasabi that is possible.

(Means for Solving the Problem) This invention supplies water to the sand PJ (a) inside the cultivation tank (1) in which wasabi (2) is planted to nourish the wasabi (2). In addition, the drainage means (
3), the water inside the tank (1) is rapidly discharged to lower the water level, and air is supplied between the gravels (8) to grow wasabi (2).

(Example) An embodiment of the present invention will be described below based on the drawings.

Fig. 1 is an overall configuration diagram according to the present invention, and Fig. 2 is Fig. 1-2-
FIG. 2 is a side sectional view taken along two lines.

(1) is a cultivation tank for artificially cultivating wasabi (2).As shown in Figure 2, this cultivation tank (1) has a U-shaped box in cross section. , near the left side of the figure, there is a tank (
1) A drainage means (3) is provided to control the water level inside.

The drainage means (3) consists of a partition wall (6) and a curved pipe (7).The partition wall (6) is a plate-shaped partition plate as shown in FIG. left and right side walls (la)
, a long groove (I8) cut out vertically in (la).

(1B), both ends (Eta) of the partition wall (6), (8
a) are fitted together to form a first tank (4) in which wasabi (2) is cultivated inside the tank (1), and a second tank (5) in which the water level in this first tank (4) is adjusted. It is divided into Also, this bulkhead (
6) includes the first. As shown in FIG. 2, a plurality of communication holes (6a) that communicate the first tank (4) and the second tank (5) are connected to the partition wall (
6) are randomly drilled on the plane. This communication hole (
6a) allows water supplied into the first tank (4) to pass through the hole (
6a) into the second tank (5). The bent pipe (7) is a pipe having an approximately inverted U-shape in cross section as shown in FIG.
c) R part (7a) of the curved pipe (7) which is inserted into the hole (id) drilled in the upper part of the curved pipe (7) and supported and fixed, and two straight parts extending downward from this R part (7a). It consists of (7b) and (7c). The straight portion (7b) extends toward the bottom of the second tank (5), and the opening (7d) at the tip thereof is opened at a certain distance from the bottom of the second tank (5). are doing. Further, the linear portion (7c) extends outside the culture tank (1), and has an opening (
7e) opens to the outside of the tank (1).

When the water flowing into the second tank (5) reaches the highest part of the R section (7a) of the curved pipe (7), the curved pipe (7)
The water in the tank (5) is rapidly discharged to the outside, and the second tank (5) is encouraged to adjust the water level in the first tank (4).

On the other hand, in the first tank (4) there is gravel (made of sand and coarse gravel).
8) and plant wasabi (2) on the gravel (8), and water is supplied into the tank (4) from the faucet (9).

Further, the coarse gravel of the sand and gravel (8) contributes to the lowering of the water level due to the rapid drainage of the water.

Next, the operation of the above embodiment will be explained.

First, water is supplied into the first tank (4) from the faucet (9). This water gradually fills the first m (4), penetrates between the sand a (a), becomes nutrient water for the wasabi (2), and flows through the communication hole (6a) of the partition wall (6). and flows out into the second tank (5). Then, the water in the first tank (4) and the second tank (5) flows into the curved pipe (7) as shown in FIG.
When the water level reaches the highest position of the section (7a), the bent pipe (7a)
) acts as a siphon (so-called siphon principle) and rapidly discharges the water inside the second tank (5) to the outside.

Due to this drainage, the water level in the first tank (4) and the second tank (5) gradually decreases to the opening (7d) of the curved pipe (7).
leading to. This drop in water level creates spaces between the gravels (8) inside the first tank (4) and inside the second tank (5), and air flows into the gravel in the first tank (4) from outside the cultivation tank (1). From above and from the second tank (5) and the communication hole (6a) of the partition wall (6),
Since air is supplied between the sands Ia (8) in the first tank (4), the rhizomes of wasabi (2) directly absorb sufficient air, especially oxygen, and grow.

On the other hand, when the water level in the first tank (4) and the second tank (5) falls below the opening (7d) of the curved pipe (7), the blood vessel (7) is moved outside the tank (1). In order to stop the water from being discharged to the pipe, the water in the second tank (5) gradually increases through the communication hole (6a) of the partition wall (6) and reaches the state shown in Fig. ) promotes the function of the siphon.

In this way, the present invention provides a drainage means (3) for a cultivation tank (1).
By controlling the water level inside 4a(1) using the Enables easy and sufficient supply of oxygen. This allows the rhizomes of wasabi (2) to directly absorb enough air, and unlike conventional methods, there is no need for large amounts of water or materials to create gradients, which reduces the production cost of wasabi cultivation. It is also possible to reduce the

Incidentally, the drainage means (3) is not limited to the above embodiment, but can also be realized by using a single manual pulp or a solenoid valve. Furthermore, the drainage means (3) does not need to be provided with the partition wall (6) in the above embodiment;
This can also be achieved by covering d) with a perforated plate.

(Effects of the Invention) As is clear from the above explanation, according to the present invention, the air necessary for wasabi cultivation can be easily and sufficiently supplied to the wasabi rhizomes planted in the cultivation tank. The production cost of cultivation can be reduced.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram according to the present invention, and Fig. 2 is Fig. 1-2-
FIG. 2 is a side sectional view taken along two lines. In one drawing, (1) is the cultivation tank, (2) is the wasabi, (3) is the drainage means, (0 is the first tank, (5) is the second tank, (6) is the partition wall, and (6a) is the communication The hole, (7) is a blood vessel, and (8) is gravel.

Claims (1)

[Claims] Water is supplied to the gravel inside the cultivation tank in which wasabi has been planted to nourish the wasabi, and the water inside the tank is quickly drained using a drainage means provided in the cultivation tank to lower the water level; A method for cultivating wasabi characterized by supplying air between the gravels to grow wasabi.