JP5492473B2 - Wasabi cultivation plant - Google Patents

Description

  The present invention relates to a wasabi cultivation plant for cultivating wasabi.

  Conventionally, wasabi has been cultivated in so-called wasabi fields formed in mountainous areas where clear streams flow, but recently, for example, disclosed in Japanese Patent Application Laid-Open No. 2008-212104 in order to increase wasabi production. Various wasabi cultivation plants (hereinafter referred to as conventional examples) have been proposed.

  This conventional example has a breathable and water-permeable tub with a medium composed of gravel on the floor in the house, and a irrigation pipe for irrigating cultivation water from above toward the medium. This is a structure comprising a plurality of underdrains disposed in the medium and a pump for supplying water under pressure.

  This conventional example is not only produced in a limited area such as a mountainous area, but also caused by collapse or disease caused by water increase that can occur by forming it in a natural stream compared to the cultivation in the wasabi field. Can be produced in a stable environment without being affected by the inflow of turbidity that causes water into the cultivated area, so the production volume can be increased, and the composition of the medium with water permeability and air permeability It can absorb abundant oxygen and can be cultivated in about half the period. In this respect as well, it can be expected to increase production.

JP 2008-212104 A

  As a result of further research and development on the aforementioned house-type wasabi cultivation plant, the present applicant has developed an innovative wasabi cultivation plant that exhibits an unprecedented effect.

  The gist of the present invention will be described with reference to the accompanying drawings.

A wasabi cultivation plant for cultivating wasabi 1, which is provided with a plurality of cultivation regions 3 in which a waterproof sheet 12 is laid on the inner surface of a concave portion 3 a formed by excavating soil in a soil region 2. Each house 3 has a house cultivating section 5 configured to cover each area 3 with a cover body 4. Each house cultivating section 5 is provided with a watering section 7 for sprinkling the cultivation water W, and water is sprayed from the watering section 7. The drainage part 8 which drains the cultivation water W to the outside of the house cultivation part 5 is provided, and the drainage part 8 of one house cultivation part 5 and the watering part of another house cultivation part 5 among the adjacent house cultivation parts 5. 7 and is configured to supply the cultivation water W from the drainage part 8 of one house cultivation part 5 to the watering part 7 of another house cultivation part 5, and as the watering part 7, the drainage part 8 is a sprinkling pipe provided with a number of sprinkling holes 7a on the peripheral surface. Structure A were horizontally provided at a height position above 10cm~20cm the wasabi plow portion 10 1 is formed on the cultivation area 3 in the position lower than the leaf 1a of the wasabi 1 when grown The water sprinkling part 7 is adopted, and the soil sprinkling part 7 is arranged in the concave part 3a constituting the cultivation region 3 as the soil sprinkling part 10, so that the water sprinkled from the sprinkling part 7 is cultivated. Adopting a soil-carrying part 10 that has water permeability through which water W flows down and is cooled by the cultivation water W that passes through and touches the stone 11 for soil construction, Further, the present invention relates to a wasabi cultivation plant characterized in that a water collecting hole 8a is formed on the peripheral surface and a drain pipe 8A constituting the drain part 8 is provided.

Further, a horseradish cultivation plant for cultivating horseradish 1, the soil region 2, the upper and lower stages and a plurality of the cultivation area 3 which is formed by laying a waterproof sheet 12 on the inner surface of the concave portion 3a formed by digging the soil And each house cultivation section 5 is provided with a sprinkling section 7 for sprinkling the cultivation water W, and this sprinkling section. The drainage part 8 which drains the cultivation water W sprayed from 7 to the outside of the house cultivation part 5 is provided, and the drainage part 8 and the lower part of the upper stage of the house cultivation part 5 among the upper and lower house cultivation parts 5 adjacent to each other. The water sprinkling part 7 of the house cultivation part 5 is connected to the water sprinkling part 7 of the lower house cultivation part 5 from the drainage part 8 of the upper house cultivation part 5. The water sprinkling part 7 is connected to the drainage part 8. By the sprinkling pipe 7A which nozzle holes 7a are formed a large number on the peripheral surface, plow portion 10 which in the position lower than the leaf 1a of the wasabi 1 when the horseradish 1 is grown to form the cultivation area 3 adopted nozzle unit 7 having the configuration horizontally provided at a height position above 10cm~20cm of, as the plow portion 10, by arranging the plow stones 11 within the concave portion 3a constituting the cultivation area 3 By comprising, there exists water permeability through which the cultivation water W sprinkled from the water sprinkling part 7 flows down, and there is water cooling property in which the cultivation water W passing through this flow down touches the soil-making stone 11 and is cooled. It is related to a wasabi cultivation plant characterized by adopting a soil making part 10 and having a water collecting hole 8a formed in the peripheral surface in the soil making part 10 and providing a drain pipe 8A constituting the drainage part 8. is there.

  Further, the sprinkling pipe 7A and the drain pipe 8A are arranged in an inclined state that is lower toward the downstream side than the upstream side, and the cultivation water W is configured to flow down naturally in the pipe. It concerns on the wasabi cultivation plant of any one of Claim 1,2.

  In addition, the sprinkling pipe 7A and the drain pipe 8A are arranged in an inclined state that is lower toward the downstream side than the upstream side, and are configured such that the cultivation water W naturally flows down in the pipe. Of the house cultivating unit 5, the drain pipe 8 </ b> A of the upper house cultivating unit 5 and the water sprinkling pipe 7 of the lower house cultivating unit 5 are connected in series, and the lower part from the drain unit 8 of the upper house cultivating unit 5. It is comprised so that the cultivation water W may be made to flow naturally down to the watering part 7 of the said house cultivation part 5, It concerns on the wasabi cultivation plant of Claim 2 characterized by the above-mentioned.

In addition, the earthing portion 10 is configured by laminating stone layers having different average particle sizes of the earthing stones 11 above and below, and the lower layer is set so that the average particle size of the earthing stones 11 increases. It concerns on the wasabi cultivation plant of any one of Claims 1-4 characterized by the above-mentioned.

Further, the drainage pipe 8A is any claim 1-5, characterized in that provided within the plow portion 10 in a state covered with the large plow stones 11 than the diameter of the drainage pipe 8A It concerns the wasabi cultivation plant described in item 1.

Moreover, the water return part which returns the cultivation water W to the sprinkling part 7 of the house cultivation part 5 located in the upstream from the drainage part 8 of the house cultivation part 5 located in the downstream when the said cultivation water W flows through the inside of a plant. It concerns on the wasabi cultivation plant of any one of Claims 1-6 characterized by comprising.

  Since the present invention is configured as described above, a very good wasabi cultivation environment can be obtained even with a small amount of water, and it is possible to increase production easily and reliably. Wasabi cultivation plant.

In addition, the present invention can supply water in an amount necessary for wasabi cultivation reliably, and can reliably maintain the temperature around the wasabi at a temperature suitable for wasabi cultivation. It becomes an epoch-making wasabi cultivation plant that demonstrates unprecedented effects such as the cultivation environment of the plant.

In addition, the present invention is a groundbreaking wasabi cultivation plant that exhibits unprecedented effects such as a simple structure, not a large structure, and a low cost and excellent mass productivity.

  In addition, in the invention described in claim 2, in addition to the effect of the invention described in claim 1, the flow of cultivation water can be obtained by using the height difference, and no large-scale power is required and the cost is low. It becomes an epoch-making wasabi cultivation plant that demonstrates unprecedented effects.

  Moreover, in invention of Claim 3, 4, the flow of the water for cultivation can be obtained using a height difference, and the image which exhibits the effect which is not in the past, such as a large-scale motive power becoming unnecessary and cost reduction. It becomes a period wasabi cultivation plant.

Moreover, in invention of Claim 5 , it has an epoch-making wasabi cultivation plant which exhibits unprecedented effect, such as having a water permeability and water-cooling property reliably, and obtaining a very favorable wasabi cultivation environment. Become.

Moreover, in invention of Claim 6 , it becomes an epoch-making wasabi cultivation plant which exhibits the effect which has not existed conventionally, such as being able to cool the cultivation water gathered in a drain pipe reliably and efficiently.

Moreover, in invention of Claim 7, it becomes an epoch-making wasabi cultivation plant which exhibits an unprecedented effect, such as a very favorable wasabi cultivation environment even with a smaller amount of water.

It is a description front view of a present Example. It is a description front view of the principal part concerning a present Example. It is an explanatory top view of the principal part concerning a present Example. It is explanatory sectional drawing of the principal part which concerns on a present Example. It is a figure which shows the experimental result of the wasabi cultivation plant which concerns on a present Example.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  The cultivation water W supplied to the watering part 7 of one wasabi cultivation part 5 is sprinkled on the soil preparation part 10 and flows down through the soil preparation part 10, and then drained to the outside from the drainage part 8. To the watering part 7 of the wasabi cultivation part 5. The cultivation water W supplied to the watering part 7 of the other adjacent wasabi cultivation part 5 is sprinkled on the soil preparation part 10 and flows down through the soil preparation part 10 and then drained from the drainage part 8 to the outside. .

  In this way, the cultivation water W is transferred between the wasabi cultivation units 5 adjacent to each other. That is, the cultivation water W supplied to the wasabi cultivation plant according to the present invention is sequentially used by the plurality of wasabi cultivation units 5.

  As described above, it is an efficient structure in which the cultivation water W is used in order in the adjacent house cultivation unit 5, so that it is possible to cultivate wasabi even with a small amount of water, and the place for wasabi cultivation is limited to the mountainous area and the like. In addition, because the water moves in the plant, there are no problems (problems such as generation of germs or water rot) that can occur due to the stagnation of the cultivation water W, and Since the inflow of the causative turbulent flow can be prevented, clean and oxygen-rich cultivation water W can be ensured, and thus an environment suitable for wasabi cultivation can be obtained.

  By the way, this invention can eliminate reliably the problem of the water temperature rise which is most problematic in the wasabi house cultivation including the conventional example mentioned above. For wasabi cultivation, a water temperature of about 10-20 ° C is generally appropriate. However, especially in the summer, the temperature inside the house rises, and when the cultivation water W becomes hot, the wasabi 1 is ill and produced. The amount is significantly reduced.

  Specifically, the water spray from the water sprinkling unit 7 is performed from the water sprinkling holes 7a formed in large numbers on the peripheral surface of the water sprinkling tube 7A horizontally provided at a predetermined height position above the soil preparation unit 10. If the height position of 7A is set low, the cultivation water W can be immediately supplied to the wasabi 1 at a low temperature as early as possible after watering from the watering part 7. After being sprinkled, the cultivation water W will be absorbed by the soil making unit 10, and the lower the height position, the less time the cultivation water W will be in contact with the warm air, and the higher temperature of the cultivation water W will be suppressed. Become.

  In addition, water is sprayed from the sprinkling holes 7a formed in a large number of sprinkling pipes 7A installed horizontally at a predetermined height above the surface of the soil-growing portion 10, so A cold insulation space is formed by the cold insulation effect by watering, and thus the temperature around the wasabi 1 can be kept at a temperature suitable for cultivation. As a result of actual trials, it was confirmed that a cold insulation space was formed between the water sprinkling unit 7 and the soil preparation unit 10 by the sprinkling from the water sprinkling unit 7 to exert a cooling effect.

  Further, when the cultivation water W sprinkled from the water sprinkling unit 7 flows down through the soil preparation unit 10, it touches the soil preparation stone 11 and is cooled.

  Specifically, the soil-making stone 11 is cooled at night when the temperature drops even in the summer, and therefore, the cultivation water W that passes through even if the temperature rises during the day is sufficient. Can be cooled. The cooling effect of the soil-making stone 11 is gradually lowered due to contact with the cultivation water W during the daytime when the temperature is high (heat exchange), but the cooling effect is restored again by being cooled at night. .

  Moreover, the drainage pipe 8A of the drainage section 8 is provided in the soil cooling section 10 having the water cooling property, and the drainage pipe 8A is also kept cold by the soil creation section 10 and passes through the drainage pipe 8A. Demonstrate the effect of cooling the cultivation water W.

  As described above, the present invention can reliably solve the problem of reduction in the production amount of wasabi 1 due to the rise in water temperature, which has been considered extremely difficult in the conventional cultivation of wasabi 1 in the above-described manner. It can be reliably realized with a simple structure rather than a large-scale structure such as providing a simple cooling facility. Therefore, the production amount can be secured at a lower cost than the conventional example described above. In addition, since the present invention has a house structure as described above, the house cultivation unit 5 is maintained at a temperature suitable for the cultivation of the wasabi 1 even in winter when the temperature is low, and the soil constituting the soil cultivation unit 10 is constructed. In the winter season, the stone 11 exerts its warming effect by touching the cultivation water W at a relatively warm temperature. In this respect, the temperature in the house cultivation section 5 and the temperature of the cultivation water W are suitable for the cultivation of wasabi 1. Temperature. Therefore, the temperature in the house cultivation unit 5 and the temperature of the cultivation water W are maintained at a temperature suitable for cultivation throughout the year, and thus the growth of the wasabi 1 can be promoted and the production amount can be increased.

  Moreover, since the soil cultivation part 10 has not only the water cooling property mentioned above but water permeability (as a result, air permeability), it grows with the clean cultivation water W which flows without stagnation, and abundant oxygen, and wasabi field mentioned above It can be cultivated in a short period (about half a period) compared to.

  Further, when configured as in the third aspect of the invention, the sprinkling in the sprinkling section 7 and the draining in the drainage section 8 are performed by natural flow using the height difference, and a large drive source is unnecessary. Therefore, it will be extremely excellent in terms of cost (initial cost and running cost).

  Moreover, when comprised like invention of Claim 4, it is a structure where the watering in the watering part 7 and the drainage in the drainage part 8 are performed by the natural flow using a height difference, and an adjacent house cultivation part It is a structure in which the cultivation water W is transferred between the five by a natural flow using a difference in height, and a large drive source is not required, and the cost is excellent (initial cost and running cost).

  A specific embodiment of the present invention will be described with reference to the drawings.

  The present embodiment is a wasabi cultivation plant P for cultivating wasabi 1 and has a plurality of house cultivation sections 5.

  Specifically, each house cultivation unit 5 is configured by providing a plurality (three) of cultivation areas 3 in the soil area 2 as illustrated in FIG. Has been.

As shown in FIGS. 1 and 2, the cultivation region 3 forms a plurality of (three) upper and lower soil step portions 2 a having different heights in the soil region 2, and each soil step portion 2 a has a depth of about A rectangular concave portion 3a having a predetermined area of 60 cm is formed by excavation, and a resin waterproof sheet 12 (vinyl sheet) is laid on the inner surface of the concave portion 3a formed of this soil. It may be Da設concrete on the inner surface of the concave shaped portion 3a, it is effective to lay a waterproof sheet 12 and considering the construction time and cost and the like.

  As shown in FIGS. 1 to 3, the cover body 4 is formed by stretching a transparent vinyl film 4 b on a frame member 4 a (frame) configured to stand around the cultivation region 3, and each house cultivation unit 5 is configured as a so-called greenhouse.

  The greenhouse can protect the wasabi 1 from the wind and rain, as well as being shielded from the outside air and has a very good thermal insulation effect. Therefore, the temperature suitable for cultivation of the cultivation water W (about 12 ° C. in particular) even in the winter when the temperature is low. ) And can be cultivated throughout the year even in snowy countries, so a dramatic increase in production can be expected, and the surrounding area can protect wasabi 1 from pests, and thus There are advantages such as non-agricultural cultivation.

  The cover 4 is provided with means for naturally cooling the inside of the house where the temperature rises especially in summer. Specifically, the cover 4 is provided with a structure for improving air permeability, such as providing a window or a door (not shown) on the cover body 4 or allowing the lower part of the vinyl film 4b to be lifted upward. . In addition, the site | part open | released by providing the structure which improves this air permeability is protected with an insect net, and the penetration | invasion of a pest is blocked | prevented.

  Further, each house cultivation unit 5 is provided with a sprinkling unit 7 for sprinkling the cultivation water W, and a drainage unit 8 for draining the cultivation water W sprinkled from the sprinkling unit 7 to the outside of the house cultivation unit 5 and adjacent thereto. Among the plurality (upper and lower stages) of house cultivation sections 5, the cultivation water W naturally flows from the drainage section 8 of the upper (upstream side) house cultivation section 5 to the water spray section 7 of the lower (downstream side) house cultivation section 5. It is provided so that it can be supplied.

  Specifically, as shown in FIGS. 2, 3, and 4, the water sprinkling unit 7 is configured by appropriately arranging a water sprinkling tube 7 </ b> A composed of a resin pipe (vinyl chloride pipe). It is arranged in a state along the upstream edge in the cultivation area 3), and is arranged on the soil making part 10 described later.

  Water for cultivation W (for example, water such as swamp water, spring water, ground water, etc.) obtained in the soil region 2 is supplied to the watering part 7 (watering pipe 7A) related to the house cultivation part 5 in the uppermost stage (uppermost stream). When the water return part mentioned later is provided, the water of this water return part is also supplied to the water sprinkling part 7.

  Moreover, the drainage pipe 8A of the drainage part 8 mentioned later is connected to the one end part (upstream side edge part) of the watering part 7 (watering pipe 7A) which concerns on the house cultivation part 5 located in the lower stage, and the cultivation water W is supplied. Is done.

  Moreover, as shown in FIGS. 2, 3, and 4, the sprinkling pipe 7 </ b> A has a large number of sprinkling holes 7 a formed on the peripheral surface of the portion disposed on the soil preparation unit 10.

  In the present embodiment, a large number of branched watering pipes 7A are set to a height position H of about 10 cm to 20 cm above the soil-growing portion 10 formed in the cultivation region 3 and are placed in a substantially parallel state with the soil-growing portion 10. Has been established.

  That is, in this embodiment, the sprinkling pipe 7A is arranged at a height position H of about 15 cm from the surface of the soil preparation part 10, and this is because the wasabi 1 grows to some extent as shown in FIG. When the stem 1b grows as it grows, it is a height position H that is located below the leaf 1a and can be irrigated to a site (root portion 1A) near the rhizome 1c. Reference numeral 1d is a root.

  From this configuration, the watering from the watering part 7 is performed from the watering holes 7a formed in large numbers on the peripheral surface of the watering pipe 7A provided at a height position H of about 15 cm above the soil preparation part 10, Since the height position of the water sprinkling pipe 7A is low, the cultivation water W can be immediately supplied to the wasabi 1 from the water sprinkling part 7 at the earliest possible stage after water sprinkling. After being sprinkled, the cultivation water W will be absorbed by the soil producing unit 10, and the lower the height, the less time the cultivation water W will be in contact with the warm air, and the higher temperature of the cultivation water W will be suppressed. . In addition, by spraying water from sprinkling holes 7a formed in a large number of sprinkling pipes 7A, which are horizontally installed at a height position H of about 15 cm above the surface of the soil preparation portion 10, the surface of the soil preparation portion 10 is upward. A cold insulation space is formed at the position by the cold insulation effect by watering, so that the temperature around the wasabi 1 can also be maintained at a temperature suitable for cultivation (the root of the wasabi 1 even if the temperature in the house cultivation section 5 is 35 ° C. or higher). It is confirmed that part 1A can be kept at 14 ° C. to 19 ° C.). If the sprinkler pipe 7A is arranged at a high position, the leaf 1a of the wasabi 1 becomes an obstacle and the cultivation water W is not easily irrigated by the root portion 1A of the wasabi 1, and the distance and time for dropping are increased. Therefore, the cultivation water W absorbs heat and the temperature rises, and furthermore, it is not possible to form a cold insulation space above the soil-growing portion 10 (the temperature around the wasabi 1 planted in the soil-growing portion 10). Cannot be maintained at a temperature suitable for cultivation.) That is, the height position H of about 10 cm to 20 cm above the soil preparation portion 10 is a height that matches the characteristics of the wasabi 1, and about 15 cm is considered optimal.

  Further, the sprinkling pipe 7A is disposed in an inclined state that becomes lower toward the downstream side than the upstream side, that is, in an inclined state so as to gradually become lower from the upstream side end portion connected to the drain pipe 8A to the downstream end portion. Therefore, the cultivation water W supplied from the drain pipe 8A is sprinkled from the sprinkling holes 7a while naturally flowing down the sprinkling pipe 7A.

  The drainage part 8 is configured by appropriately arranging a drainage pipe 8A made of a resin pipe (vinyl chloride pipe) as shown in FIGS. It is arranged on the bottom surface of the region 3 (concave part 3a) and is embedded in the soil making part 10, and other parts are extended outside the house cultivation part 5.

  Specifically, as shown in FIGS. 2, 3, and 4, two drain pipes 8 </ b> A are arranged in parallel on the bottom surface of the concave portion 3 a via a predetermined interval, and this portion is concentrated on the circumferential surface. A large number of water collecting holes 8a exhibiting a water function are formed, and the cultivation water W that has flowed down from the water collecting holes 8a to the bottom surface of the concave portion 3a is collected.

  Further, the drain pipe 8A is disposed in an inclined state that becomes lower on the downstream side than on the upstream side, that is, gradually decreases from the upstream end portion embedded in the soil making unit 10 to the downstream end portion. It is horizontally installed in an inclined state, and is configured to naturally flow the collected water down to the outside of the house cultivation unit 5.

  The downstream end portion of the drain pipe 8A is connected to the sprinkler pipe 7A of the sprinkler section 7 related to the lower (downstream) house cultivation section 5. In addition, the drain pipe 8B which concerns on the lowermost house cultivation part 5 is connected to the water return part mentioned later, or is made to flow as waste water as it is.

  Therefore, the water W for collecting water collected by the drain pipe 8A is supplied by natural flow to the watering part 7 or the water return part related to the adjacent lower house (downstream side) house cultivation part 5. In addition, when a level | step difference is not provided between adjacent house cultivation parts 5, the water W for cultivation from the drainage part 8 which concerns on the upstream house cultivation part 5 to the watering part 7 which concerns on the downstream house cultivation part 5 The supply (delivery) may be performed via a pump.

  Further, the drainage pipe 8A is provided in a state where the periphery is covered with a soil-making stone 11 constituting the soil-making part 10 described later, and this drainage pipe 8A has a diameter of the soil-making stone 11 covering the drainage pipe 8A. Smaller diameter (diameter 10 cm).

  As shown in FIG. 4, the soil planting part 10 is configured by arranging soiling stones 11 in the cultivation area 3, and has water permeability and air permeability through which the cultivation water W sprinkled from the watering part 7 flows down. In addition, there is a water cooling property in which the cultivation water W passing down and touching the soil-making stone 11 is cooled.

  Specifically, it is composed of a plurality of (three) stone layers (each layer 20 cm) having different average particle diameters for the soil-making stone 11 in upper and lower stages, and the average particle diameter increases from the upper layer to the lower layer. It is formed to be large. Actually, the soil 11 for the soil with the diameter of about 1 cm or less is used as the soil 11 for the top layer, and the soil 11 for the soil with the diameter of 4 cm or less is used as the soil 11 for the middle layer. As the soil-making stone 11 in the lowest layer, the soil-making stone 11 having a diameter of about 15 cm or more is adopted. In addition to gravel stone 11, gravel and soil are mixed in the uppermost layer for planting wasabi 1 in order to provide appropriate water retention, and gravel and soil may be mixed as appropriate in the other layers.

  Further, as the soil-making stone 11 that covers the drainage pipe 8A as the soil-making stone 11 that forms the lowermost layer of the soil-making part 10, a stone larger than the diameter (diameter 10 cm) of the drainage pipe A is adopted.

  Specifically, as described above, the drainage pipe 8A having a diameter of 10 cm is adopted as the drainage pipe 8A, and the construction stone 11 having a diameter of about 15 cm or more is adopted as the construction stone 11 covering the drainage pipe 8A. .

  The stone that is larger than the diameter of the drainage pipe 8A is adopted as the bottom soiling stone 11 because the layer itself has sufficient water permeability and air permeability and has excellent cold insulation. This is to secure a surface area that sufficiently cools the cultivation water W flowing down, and the cultivation pipe W is also cooled at the same time as the cultivation water W passing through the soil-making stone 11 is actively cooled. This is because the cultivating water W that is distributed is also actively cooled.

  In addition to the house structure as described above, the soil planting part 10 is touched by warm cultivation water W (warm water of about 12 ° C. in winter), especially in winter when the temperature is low. 11 is warmed and the heat retaining effect is exhibited as it is. In this respect as well, the temperature in the house cultivation unit 5 and the temperature of the cultivation water W are maintained at a temperature suitable for the cultivation of the wasabi 1. Therefore, the inside of the house cultivation unit 5 is maintained at a temperature suitable for cultivation throughout the year, and therefore, the growth of the wasabi 1 can be promoted throughout the year, and the production amount can be dramatically increased.

  Reference numeral 13 is a side groove that becomes an overflow when the cultivation part W is filled with the cultivation water W. The side groove 13 is connected to the drain pipe 8B, and 14 is formed on the side of the house cultivation part 5. The snow sluice side groove 14 is provided with snow squeezing water and is erased by receiving snow falling from the cover 4 (especially in snowy countries where there is a lot of snow) This is to prevent the house from being crushed if the snow piled up aside is thrown away.)

  Although not shown, it is not necessary in an area where water is relatively blessed and so-called water flow is possible, but a water return section may be provided in other areas.

  Specifically, this water return part is connected to the sprinkling part 7 related to the house cultivation part 5 at the uppermost stage (uppermost stream side) at one end, and the house cultivation part 5 at the lower end (lowermost stream side) at the other end. A circulation pump is provided at a predetermined position of a water return pipe connected to the drainage section 8 according to the above.

  Therefore, the drainage part 8 of the upper (upstream side) house cultivation part 5 and the water sprinkling part 7 of the lower (downstream side) house cultivation part 5 are connected in the adjacent house cultivation part 5, and the upper stage (upstream side). The cultivation water W is supplied from the drainage part 8 of the house cultivation part 5 of the house cultivation part 5 to the watering part 7 of the lower part (downstream side) of the house cultivation part 5 by natural flow, and the drainage of the lower (downstream side) house cultivation part 5 A water circulation mechanism is configured in which the cultivation water W is returned from the section 8 to the watering section 7 of the upper (upstream side) house cultivation section 5 through the water return section.

  Since the present embodiment is configured as described above, the cultivation water W supplied to the water sprinkling unit 7 of the uppermost wasabi cultivation unit 5 is sprinkled from the water sprinkling unit 7 to the soil planting unit 10, thereby After flowing down, the water is drained to the outside from the drainage section 8 and is naturally fed to the watering section 7 of the adjacent middle (second stage) wasabi cultivation section 5. The cultivation water W supplied to the watering part 7 of the adjacent wasabi cultivation part 5 in the adjacent middle stage is sprayed from the watering part 7 to the soil making part 10 and then flows down through the soil making part 10, and then from the drainage part 8 to the outside. The water is drained in the water and supplied to the sprinkling part 7 of the wasabi cultivation part 5 in the lowermost stage (third stage) adjacent thereto. The cultivation water W supplied to the watering part 7 of the adjacent lowermost wasabi cultivation part 5 is sprinkled from the watering part 7 to the soil making part 10 and flows down through the soil making part 10, and then from the drainage part 8. Drained outside. When the water return unit is provided, the cultivation water W is returned from the drainage unit 8 of the lowermost house cultivation unit 5 to the watering unit 7 of the uppermost house cultivation unit 5 via the water return unit. .

  Thus, the cultivation water W is transferred between the wasabi cultivation units 5 adjacent to the upper and lower three stages, that is, the cultivation water W supplied to the wasabi cultivation plant P according to the present embodiment is the three wasabi cultivation units 5. In addition, the cultivation water W is flown by a natural flow that does not require a drive source.

  As described above, it is an efficient structure in which the cultivation water W is used in order in the adjacent house cultivation unit 5, so that it is possible to cultivate wasabi even with a small amount of water, and the place for wasabi cultivation is limited to the mountainous area and the like. In addition, because the water moves in the plant, there are no problems (problems such as generation of germs or water rot) that can occur due to the stagnation of the cultivation water W, and Since the inflow of the causative turbulent flow can be prevented, clean and oxygen-rich cultivation water W can be ensured, and thus an environment suitable for wasabi cultivation can be obtained.

  Further, in this embodiment, water spraying from the water sprinkling section 7 is performed from water sprinkling holes 7 a formed in large numbers on the peripheral surface of the water sprinkling pipe 7 </ b> A installed horizontally at a height position H of about 15 cm above the soil preparation section 10. Therefore, for example, the water is sprayed from the sprinkling part 7 toward the root part 1a of the wasabi 1 at a low temperature as early as possible after the sprinkling, so that the water having a low temperature can be immediately given to the wasabi 1. . Immediately after the water is sprayed, the cultivation water W is absorbed by the soil producing unit 10, and since the cultivation water W has little time to touch warm air, the temperature of the cultivation water W is prevented from being increased.

  In addition, by spraying water from the sprinkling holes 7a formed in a large number of sprinkling pipes 7A arranged at a position H about 15 cm above the surface of the soil preparation portion 10, it is possible to move upward from the surface of the soil preparation portion 10. In the position, a cold insulation space is formed by the cold insulation effect by watering, and thus the temperature around the wasabi 1 can be kept at a temperature suitable for cultivation.

  Further, in this embodiment, the cultivation water W sprinkled from the water sprinkling unit 7 is cooled by touching the soil crushing stone 11 when passing through the soil cultivation unit 10, and this water-cooling soil production unit The drainage pipe 8A of the drainage part 8 is provided at 10, and this drainage pipe 8A is also kept in the cold state by the soil making part 10, and exhibits the effect of cooling the cultivation water W passing through the drainage pipe 8A.

  Accordingly, it is possible to surely solve the problem of reduction in the production amount of wasabi 1 due to the rise in water temperature, which has been extremely difficult in the conventional cultivation of wasabi 1 and is not a large-scale structure such as providing a cooling facility. It can be reliably realized with a simple structure. Therefore, the production amount can be secured at a lower cost than the conventional example described above.

  When the applicant actually tried the relationship between the water temperature and the outside air temperature in the wasabi cultivation plant P according to the present embodiment, the result shown in FIG. 5 was obtained.

  The experiment is conducted especially in the summer when the outside air temperature is hot, and the average temperature of the outside air temperature is about 25 ° C. or more on any day.

  Moreover, the original water temperature in FIG. 5 is the water temperature of the cultivation water W at the time of being supplied to the watering part 7 of the uppermost house cultivation part 5, and the end point water temperature in FIG. Eye) is the temperature of the cultivation water W when drained from the drainage section 8 of the house cultivation section 5, and the temperature is measured at the time of 8:00 in the morning, 13:00 in the noon, and 17:00 in the evening. .

  As shown in FIG. 5, although the water temperature gradually rises from the morning, it can be seen that the end-point water temperature is maintained at a water temperature of 20 ° C. or lower, which is suitable for wasabi cultivation on average throughout the day.

  It can also be seen that the end-point water temperature is higher in the evening when the temperature is lower than the daytime when the temperature is high, and the end-point water temperature returns to the lower temperature again in the morning of the next day.

  This is because the soil-making stone 11 is cooled at night when the temperature drops even in summer, and the cooling effect of the soil-making stone 11 touches the cultivation water W in the daytime when the temperature is high. Although the cooling effect gradually decreases due to (heat exchange), it is considered that the cooling effect is restored again after being cooled at night.

  From the above, it was confirmed that the wasabi cultivation plant P according to the present example has a very effective structure for preventing the temperature rise of the cultivation water W, which is the most problematic in house cultivation.

  In addition, in this example, the soil-growing unit 10 has not only the water cooling property described above but also air permeability and water permeability, so it grows with abundant oxygen and clean cultivation water W that flows without stagnation. It can be cultivated in about half the time compared to wasabi field.

  In addition, the present embodiment is a structure in which the cultivation water W is transferred between the adjacent house cultivating units 5 by natural flow using the height difference (step), and a large driving source is not required and is extremely cost-effective. It excels in (initial cost and running cost).

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

  The present invention is useful for a wasabi cultivation plant for cultivating wasabi.

W Water for cultivation 1 Wasabi 1A Root part 2 Soil area 3 Cultivation area 3a Concave part 4 Cover 5 House cultivation part 7 Watering part 7A Watering pipe 7a Watering hole 8 Drainage part 8A Drainage pipe 8a Water collecting hole
10 Soil Department
11 Soil stone
12 Tarpaulin

Claims (7)

Wasabi cultivation plant for cultivating wasabi, and in the soil area, provided with a plurality of cultivation areas formed by laying waterproof sheets on the inner surface of the concave part formed by excavating the soil , above each of the cultivation areas It has a house cultivating unit configured by covering with a cover, and in each house cultivating unit, a watering unit for sprinkling the cultivating water is provided, and the cultivation water sprinkled from the watering unit is drained to the outside of the house cultivating unit The drainage part of the one house cultivation part is connected to the other house from the drainage part of the one house cultivation part. It is configured to supply cultivation water to the watering part of the cultivation part, and as the watering part, when the wasabi grows , a watering pipe connected to the drainage part and having a large number of watering holes formed on the peripheral surface is provided. Position below the wasabi leaf Plow the nozzle unit of the structure in which horizontally provided at a height position above 10cm~20cm the plow portion formed on the cultivation area and adopted, as the plow portion, in the concave portion constituting the cultivation area Water cooling performance in which the cultivation water sprinkled from the water sprinkling part has water permeability to flow down and the cultivation water which has flowed down touches the soil-making stone by being arranged by arranging stones A wasabi cultivation plant characterized by adopting a soil-producing part, and having a drainage pipe formed in the peripheral surface with a water collecting hole in the peripheral surface and constituting the drainage part. Wasabi cultivation plant for cultivating wasabi, and in the soil area, a plurality of cultivation areas formed by laying waterproof sheets on the inner surface of the concave part formed by excavating the soil are provided in the upper and lower stages, respectively. The house cultivation is configured by covering the upper part of the house with a covering body, and each house cultivation section is provided with a watering section for sprinkling the cultivation water, and the cultivation water sprayed from the watering section is disposed outside the house cultivation section. A drainage part for draining is provided, and among the adjacent upper and lower house cultivation parts, the drainage part of the upper house cultivation part and the watering part of the lower house cultivation part are connected in series, and the upper house cultivation It is configured to supply water for cultivation from the drainage part of the house to the watering part of the house cultivation part in the lower stage, and as the watering part, a watering pipe connected to the drainage part and having many watering holes formed on the peripheral surface is provided. the wasabi is grown The nozzle unit having the configuration than the leaves of the wasabi in the position below and laterally disposed at a height position above 10cm~20cm the plow portion formed on the cultivated area is adopted when, as the plow portion, By arranging the soil-making stone in the concave part constituting the cultivation area , the cultivation water sprinkled from the water sprinkling part has water permeability to flow down, and the cultivation water passing through the flowing water is the cropping water. A water-coolable soil-growing part that is cooled by touching the soil stone is adopted, and a water collecting hole is formed in the peripheral surface in the soil-growing part, and a drain pipe that constitutes the drainage part is provided. Wasabi cultivation plant.   The said watering pipe and the said drainage pipe are arrange | positioned in the inclination state which becomes low as compared with an upstream, and it is comprised so that cultivation water may flow down naturally in the pipe | tube. The wasabi cultivation plant of any one of.   The watering pipe and the drainage pipe are arranged in an inclined state that is lower toward the downstream side than the upstream side, and are configured such that the cultivation water flows down naturally in the pipe, A drainage pipe of the upper house cultivation unit and a watering pipe of the lower house cultivation unit are connected in series, and water for cultivation is naturally supplied from the drainage unit of the upper house cultivation unit to the watering unit of the lower house cultivation unit. The wasabi cultivation plant according to claim 2, wherein the plant is configured to flow down and supply. The soil construction part is configured by laminating stone layers having different average particle sizes of the soil-making stones on the top and bottom, and is set so that the average particle size of the soil-making stones becomes larger as the lower layer The wasabi cultivation plant of any one of Claims 1-4 characterized by the above-mentioned. The wasabi according to any one of claims 1 to 5 , wherein the drain pipe is provided in the soil-making unit in a state of being covered with a soil-making stone larger than the diameter of the drain pipe. Cultivation plant. It has a water return part which returns cultivation water to the sprinkling part of the house cultivation part located in the upstream from the drain part of the house cultivation part located in the downstream when the cultivation water flows in the plant The wasabi cultivation plant of any one of Claims 1-6 .

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