JP2017029069A - Method for cultivating lotus root - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for cultivating lotus root capable of increasing yield while lightening workload.SOLUTION: A method for cultivating a lotus root of the present invention comprises: a planting step of arranging a cultivation tube 10, in which a seed lotus root 1 is charged in a growth chamber 15 surrounded by a tube body 11 together with cultivation soil 5, into a cultivation tank 30 in a vertical position; and a harvesting step of pulling up cultivation tube 10 from cultivation tank 30 in harvesting time when the seed lotus root 1 has grown to a lotus root 3. It is preferable to provide a filter 20 which suppresses unlimited leakage of the cultivation soil 5 filled in the growth chamber 15 from a lower opening 12 to the outside.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a lotus root cultivation method.

  Conventionally, in order to cultivate lotus roots, seed lotus roots are planted in paddy fields that are maintained in a mud containing a large amount of water, and after the germination and growth process, the harvest season is reached. The lotus root in the harvesting season is located at a depth of 600 mm to 1000 mm from the surface of the paddy field, and in order to harvest it must be excavated from there and transported outside the paddy field.

  Workers put on rubber boots, etc., and perform most of the harvesting work by hand, such as blowing off mud using a hydraulic pump etc. while immersing in the paddy field above the knee or waist. This work is difficult to be mechanized and requires labor and labor, and is physically very harsh.

  As described above, while conventional lotus root cultivation has been performed in a paddy field having a depth of about 1000 mm, Patent Document 1 uses lotus root cultivation using a shallow cultivation tank of about 200 to 400 mm. It has been proposed to provide a shallow soil layer of about 80 to 200 mm inside and to grow lotus roots in this layer. According to Patent Document 1, it is said that the growth management can be facilitated and the lotus root can be easily excavated at the time of harvest.

JP 2008-173104 A

In the cultivation method of Patent Document 1, although the work load is reduced, it is still necessary to dig a lotus root manually from the soil layer at the time of harvesting, and to carry out the lotus root to the outside of the cultivation tank. It becomes. On the other hand, even if the work burden can be reduced, we want to avoid reducing the yield.
This invention is made | formed based on such a subject, and makes it a subject to provide the cultivation method of a lotus root which can increase a yield while reducing a work burden more.

  Under such a problem, the cultivation method of the lotus root of the present invention includes a cropping step in which a cultivation tube in which a seed or a lotus root is charged together with cultivation soil is placed vertically in a cultivation tank in a growth room surrounded by the tube body. A harvesting step of lifting the cultivation tube from the cultivation tank at the time of harvesting when the seed lotus has grown into a lotus root. The seed lotus root is also called a bud lotus root.

According to the cultivation method of the present invention, in the planting step, the cultivation tube in which seeds or seed lotus roots are charged is placed in the cultivation tank, and in the harvesting step, the grown lotus root is raised together with the cultivation tube. The work target in this step can be only the cultivation pipe. In addition, fertilization and nourishment layers suitable for lotus root cultivation can be formed in this cultivation tube. In addition, it is extremely effective in combating spoilage diseases by combining microbial materials.
Moreover, according to the cultivation method of the present invention, it is not necessary to surround the cultivation tube with mud soil, so in the planting step, it is not necessary to bury the cultivation tube in the soil, and in the harvesting step, The cultivation pipe can be pulled up without digging up from the muddy soil. For this reason, it is also rational in production management because it is possible to easily handle the control of pests by lifting the entire cultivation tube during top fertilization and pest control. It also functions as a measure against damage to turtles, exotic fish, duck, etc., depending on the cultivation tube. In addition, since the harvested tube can be easily cleaned and disinfected, it is also effective in disease resistance against rot.

In the cultivation method of the present invention, since the cultivation tube immersed in the cultivation tank is a work target, the work can be mechanized using a heavy machine such as a crane even when the cultivation pipe is lifted from the cultivation tank. As described above, according to the cultivation method of the present invention, it can be realized as soil making necessary for cultivation, ecology of fertilizer, and a new cultivation method by reducing agricultural chemicals, and can be one end of agricultural technology innovation.
Also, it becomes possible to mechanize the work at the time of planting and harvesting, and the work burden can be remarkably reduced, leading to promotion of agricultural employment for young people.

  Furthermore, according to the cultivation method of the present invention, since the cultivation tube is planted in a vertical position, the yield per unit area can be increased, so a cultivation pool is provided in a crowded area or a fallow land. It is also possible to cultivate. However, although it depends on the shape of the unit, it is necessary to determine the installation position in the cultivation pool in consideration of the growth area of floating leaves and standing leaves.

The cultivation tube in the present invention is provided with a hole penetrating the front and back of the tube main body, and a bottom filter and a seed which are provided at the bottom of the tube main body and prevent the cultivation soil in which seeds or seed lotus roots are planted from leaking out of the growth chamber. Or it is preferable to provide one or both of the upper filter which suppresses a seed lotus root from popping up.
By providing a hole in the tube body, the water for cultivation circulates inside and outside the growth chamber, making it easy to give water and nutrients necessary for the seed lotus root, and promotes the rapid growth of the lotus root. In addition, when the lotus root grows and its volume increases, it also helps to quickly drain the cultivation soil and cultivation water in the growth room without a place to go out of the room. Further, when the cultivation tube is pulled up from the cultivation tank at the time of harvesting, the cultivation tube and the water that are no longer needed can be drained to the outside through this hole, which helps to lighten the cultivation tube.
In addition, by installing a lower filter that also prevents the seed lotus from falling at the bottom of the tube body, the nutrients necessary for growth are maintained in the growth chamber by preventing the cultivation mud from leaking to the outside of the cultivation tube without restriction. In addition, prompt germination and growth of the lotus root can be promoted, and the next generation seed lotus root can be grown. This filter is also useful for reducing the weight of the cultivation tube because when the cultivation tube is pulled out of the cultivation tank at the time of harvesting, it is easy to drain out unnecessary moisture from the growth chamber.
In addition, a bottom means the bottom when a cultivation pipe is installed vertically in a cultivation tank.

In the cultivation method of the present invention, it is preferable that the plurality of cultivation tubes are arranged in the cultivation tank at equal intervals.
By arranging the cultivation tubes regularly as described above, it is possible to ensure sufficient photosynthesis necessary for growth by avoiding the overlapping of floating leaves and standing leaves that have grown from the seed lotus root. At the same time, the area occupied by the cultivation tank occupied by one cultivation pipe is promoted to be uniform. Therefore, according to the present invention, compared with the conventional cultivation method in which lotus root is allowed to grow in any direction in the mud, the amount of absorbed nutrients and the photosynthetic reaction of each lotus root is made uniform. Contribute to the cultivation of lotus root with good quality.
Note that the uniform interval here does not require a physically exact equal interval, but refers to an interval considered equal in the agricultural field.

In the cultivation method of the present invention, the cultivation tube charged with seeds or lotus root and cultivation soil is a unit of a cultivation tube unit in which a plurality of cultivation tubes are bundled in the planting step, and is arranged at equal intervals in the cultivation tank. In the harvesting step, it is preferable to pull up from the cultivation tank in units of cultivation tube units.
By bundling a plurality of cultivation tubes into a unit, the work to be cultivated in the cultivation tank and the lifting work at the time of harvesting can be performed collectively, for example, 3 to 15, so that the work efficiency can be further improved. it can.

In the cultivation method of this invention, it is preferable that the shape of the outer periphery in the cross section of a pipe main body is circular.
By making it circular, no matter how close the cultivation tube is in the cultivation tank, there is a certain gap between adjacent cultivation tubes, so the roots grown from the seed lotus root A space to grow through the window is also secured, leading to the cultivation and harvesting of sprouting lotus root that can be produced next time.

In the cultivation method of this invention, it is preferable that the opening dimension of the growth room, ie, the cultivation tube 10, is 50 mm to 150 mm, and the length is 600 mm to 1200 mm.
By having such an opening size and length, the lotus roots are connected in a straight line in the longitudinal direction of the cultivation tube in the growth chamber, orderly growth is induced, and the lotus root yield per unit area of the cultivation tank is Can be improved.
In addition, this opening dimension means a diameter when the opening shape is a circle, and means the length of one side when the opening shape is a polygon.

According to the present invention, the seed lotus root can be arranged in the cultivation tank together with the cultivation tube, and can be pulled up and extracted from the tube at the time of harvesting. Moreover, according to this invention, since the cultivation pipe is placed vertically, the yield per unit area can be increased.
In addition, fertilization and nourishment layer suitable for cultivation can be put in the cultivation pipe, and furthermore, it can be lifted up with the cultivation pipe at the time of additional fertilization and pest control. The effect by this invention is remarkable, such as being rational.

The cultivation pipe | tube in this embodiment is shown, (a) is a top view, (b) is a front view, (c) is a bottom view, (d) is a longitudinal cross-sectional view which shows a mode that the seed lotus root and cultivation soil were prepared. is there. In the planting step of 1st Embodiment, a mode that the cultivation pipe was arrange | positioned in the cultivation tank is shown, (a) is a top view, (b) is a cross-sectional view of a cultivation tank. In the harvesting step of the first embodiment, (a) is a transverse sectional view of the cultivation tank, and (b) is a longitudinal sectional view of the cultivation tube. The cultivation pipe unit in 2nd Embodiment is shown, (a) is a top view, (b) is a side view, (c) is a bottom view. In the planting step of 2nd Embodiment, it is a top view which shows a mode that a cultivation pipe unit is arrange | positioned to a cultivation tank. It is a cross-sectional view of the cultivation tank in the harvesting step of the second embodiment,

Hereinafter, embodiments of the lotus root cultivation method of the present invention will be described in detail with reference to the accompanying drawings.
In this embodiment, as shown in FIGS. 1 and 2, the cultivation tube 10 in which the seed lotus root 1 is charged is disposed in the cultivation tank 30 filled with the cultivation water 31, and the seed and seed lotus root 1 is placed in the cultivation tube 10. It is the cultivation method of the lotus root which grows in the inside and raises the grown lotus root 3 with the cultivation tube 10 from the cultivation tank 30. The lotus root 3 pulled up together with the cultivation tube 10 is extracted from the cultivation tube 10 and then provided to the market.
Hereinafter, after explaining the cultivation tube 10, the cultivation method using the cultivation tube 10 is demonstrated.
In addition, although the example which uses a seed lotus root 1 is demonstrated here, the seed of a lotus root can be prepared in the cultivation pipe | tube 10 and can be cultivated in this invention.

  As shown in FIG. 1, the cultivation tube 10 includes a tube main body 11 having a cylindrical side wall in which a lower opening 12 and an upper opening 13 are provided at both ends in the axial direction, and a lotus root growing room occupying the inside of the tube main body 11. 15, a filter 20 that closes one lower opening 12 of the pipe body 11, and a locking bar 25 that prevents the seed lotus root 1 from floating in the growth chamber 15 and escaping from the pipe body 11 during cultivation. ing. The seed lotus root 1 and the cultivation soil 5 are placed in the cultivation tank 30 after being accommodated in the growth chamber 15 in advance. In FIG. 1 (d), details such as roots are omitted, and the description of the filter 20 is omitted.

As the pipe main body 11, assuming that the seed lotus root 1 grows into the lotus root 3, for example, a straight pipe having an opening size (inner diameter, diameter) of 50 mm to 150 mm and a length of 600 to 1200 mm can be used. This dimension is also true for the growth chamber 15.
The tube body 11 is made of a resin such as vinyl chloride as long as the tube body 11 is immersed in the cultivation water 31 until harvest and can hold the lotus root 3 grown from the seed lotus root 1 together with the cultivation soil 5. Or a metal tube such as an aluminum alloy can be used. Resin pipes have the advantage of being inexpensive, and metal pipes have the advantage of superior strength and durability.
As a specific example of the pipe made of vinyl chloride, for example, PVC-U (hard polyvinyl chloride pipe) or PVC-HI (impact-resistant hard polyvinyl chloride pipe) having a nominal diameter of 50 to 150 according to JIS K6741 standard can be used. . If it is PVC-HI, it is strong also in the impact at the time of putting in / out from a cultivation tank, and can endure use for many years. Similarly, in the case of an aluminum alloy tube, for example, a JIS H4080 standard extruded tube standard grade having a nominal diameter of 50 to 150 can be used.

The tube body 11 is provided with a plurality of holes 14 that penetrate the front and back surfaces and communicate the growth chamber 15 and the outside of the tube body 11 over the entire tube body 11. The holes 14 are listed as preferred elements in the present invention.
The holes 14 are provided for the purpose of allowing the cultivation water 31 to circulate between the growth chamber 15 and the pipe body 11. Moreover, the hole 14 promotes absorption of nutrients from the outside by allowing the roots grown during the growth of the seed lotus root 1 to the lotus root 3 to extend to the outside of the tube body 11, and at the same time the seeds are also introduced to the outside side. Has the purpose of promoting the growth of the lotus root.

The specifications of the size and number of the holes 14 are arbitrary as long as the above purpose can be achieved.
However, the size is preferably in the range of 5 mm to 15 mm, for example, so that the lotus root 3 grown in the growth chamber 15 does not protrude outside the cultivation tube 10. If it is this diameter, the grown rhizome will be exposed to the exterior of the cultivation pipe 10, and a seed lotus root can be nurtured.
The number of holes 14 varies depending on the diameter and length of the cultivation tube 10, and is within a range that does not significantly impair the mechanical strength. It is preferable to be provided over the entire area.
About the hole 14, you may use the cylindrical pipe | tube with which the hole was provided previously, and may provide by means, such as a drill process and a punching process.

Next, the filter 20 which is a preferable element in the present invention will be described.
The filter 20 suppresses the cultivation soil 5 charged in the growth chamber 15 from leaking out from the lower opening 12 to the outside without limitation. On the other hand, the filter 20 must have water permeability so that the cultivation water 31 can circulate between the inside and outside of the growth chamber 15 and allow the cultivation soil 5 to be discharged as the seed lotus root 1 grows. There is.
As long as the above functions are provided, the form of the filter 20 is arbitrary, but the filter 20 of the present embodiment will be described as follows.

  The filter 20 is configured by attaching a filter body 21 so as to close the lower opening 12 of the tube body 11. As an attachment method, for example, a rectangular filter material having a size that can inscribe the outer diameter circle of the tube body 11 is prepared, and when the outer diameter circle is inscribed, the four corner portions that protrude outward from the circle Are provided in the same direction at right angles. Thereafter, the upright piece 22 and the tube body 11 of the tube body 11 are securely fixed by fastening with, for example, screws. Other means such as an adhesive can be used as the fixing means.

As a material of the filter main body 21, for example, there is a woven wire mesh, a material having a range of 5 to 20 mesh, a wire diameter of 0.2 mm to 2 mm, and an aperture ratio of 10 to 70% can be used. Since the filter main body 21 is immersed in the cultivation water 31, it is preferable that the filter main body 21 is made of a material having excellent corrosion resistance, for example, stainless steel. In any case, it is applied to the lower opening 12 of the pipe body 11 by a reliable method so as to withstand the weight of the cultivation soil 5 to be put in the cultivation pipe 10 later.
If the mesh filter 20 is used, the rhizome which the seed lotus root 1 grew and produced | generated will pass the filter 20, and will be exposed to the exterior of the cultivation pipe 10, and it can be connected with the production of a seed lotus root.

The locking bar 25 prevents the seed lotus root 1 from coming out of the pipe body 11 during cultivation. In other words, the seed lotus root 1 includes voids inside and has a small specific gravity, and the seed lotus root 1 is weakened due to the fact that the cultivation soil 5 is loosened during cultivation and the ability to suppress the seed lotus root 1 is weakened. It floats in the tube body 11. Therefore, when the cultivation tube 10 is entirely immersed in the cultivation water 31, the seed lotus root 1 may come out of the tube body 11 during cultivation. Therefore, by providing the locking bar 25 at the upper part of the tube main body 11, even if the seed lotus root 1 is lifted, the seed lotus root 1 is locked by the locking bar 25 and is prevented from coming off.
The locking bar 25 is preferably supported on both ends of the pipe body 11 by opening through holes 26 and 26 in the pipe body 11 and passing through the holes. Although the simplest form of the locking bar 25 is shown here, other forms such as a cross-shaped locking bar 25 may be used.

Next, the basic elements of the lotus root cultivation method using the cultivation tube 10 will be described first as a first embodiment, and then a more realistic method will be described as a second embodiment.
<First Embodiment>
First, as shown in FIG. 2A, the seed lotus root 1 is charged into the cultivation tube 10 together with the cultivation soil 5.
The seed lotus root 1 is charged into the pipe body 11 such that the surrounding area is covered with the cultivation soil 5. The cultivated soil 5 is placed in the tube body 11 so that the entire region from one end to the other end of the tube body 11 is almost full.
As the cultivated soil 5, it is preferable to use highly viscous soil for the bottom portion near the filter 20. This is to avoid the outflow from the filter 20 as much as possible. On top of the highly viscous soil at the bottom, put appropriately formulated soil, plant the seed lotus root 1 there, and then plant highly viscous soil on it, for example, about 5-10 cm To do. This highly viscous soil at the top serves to prevent the seed lotus root 1 from floating.
It is important to use the soil containing nutrients suitable for cultivation of the seed lotus root 1 as the cultivated soil 5, and the additional lotion is performed in the same manner as the fertilizer standard in normal outdoor cultivation. It is preferable that 1 is located at a depth of about 50 mm from the surface of the cultivated soil 5 and shoots a little.

After that, as shown in FIG. 2, the cultivation tube 10 in which the seed lotus root 1 and the cultivation soil 5 are accommodated is planted vertically in the cultivation tank 30 filled with the cultivation water 31.
The cultivation tank 30 is surrounded by a workplace 33 for performing operations such as drawing the lotus root 3 from the cultivation tube 10 pulled up from the cultivation water 31.
In addition, although the time of planting is not limited, it is usually from March to May, but since greenhouse cultivation is also efficient, it is possible to plant according to the harvest time.
The depth of the cultivation tank 30 is set so that the vertically placed cultivation tube 10 is sufficiently immersed in the cultivation water 31.
In the present embodiment, a plurality of cultivation tubes 10 are arranged in the cultivation tank 30 at equal intervals.
As described above, if the length of the cultivation tube 10 is about 600 to 1200 mm, the cultivation tank 30 has a depth that allows the water surface of the cultivation water 31 to secure a height of 900 to 1500 mm from the bottom surface of the cultivation tank 30. It is preferable.
Although the plane area of the cultivation tank 30 can be arbitrarily determined for mechanized mass production, as an example, the length × width may be about 10 to 20 m × 2 to 5 m.
In addition, even if a strong wind blows around the cultivation tank 30, the cultivation tube 10 is moved and moved so that the standing leaves do not fall down, and further, although not illustrated, so as not to fall down, It may be taken that it can be kept in place by appropriate auxiliary measures.
The cultivation tube 10 may be entirely immersed in the cultivation water 31, or an upper part may be exposed from the water surface of the cultivation water 31.
The cultivation water 31 stored in the cultivation tank 30 can include liquid fertilizer. When liquid fertilizer is included, additional fertilizer can be selected at any time. In particular, if the seed lotus root 1 germinates, the lotus root 3 is grown by supplementing the liquid manure. FIG. 3 is a cross-sectional view showing the inside of the cultivation tube 10.
In addition, in this embodiment, arrange | positioning the cultivation pipe | tube 10 vertically means that the axial direction of the cultivation pipe | tube 10 is arrange | positioned along a perpendicular direction.
However, as long as the cultivation tube 10 is not hindered at the time of harvesting, a slight angular shift (for example, about 5 to 10 °) in the axial direction is allowed.

The seed lotus root 1 is grown in an environment immersed in the cultivation water 31 before the harvest period, but grows in the vertical direction because the cultivation tube 10 is placed vertically.
During this growth period, the cultivation water 31 circulates inside and outside the growth chamber 15 through the lower opening 12 located on the lower side, the upper opening 13 located on the upper side, and the hole 14 formed in the side surface of the pipe body 11, Provide lotus root 1 with the necessary moisture and nutrients. In order to ensure this circulation, a convection by a pump-up or a fan that generates a water flow in the cultivation tank 30 can also be provided.
Since the seed lotus root 1 grows and grows during the growth period, the cultivated soil 5 accommodated in the growth chamber 15 is discharged to the outside of the pipe body 11 through the lower opening 12 and the hole 14 along with this growth. Is done.
Since the filter 20 is provided in the lower opening 12, the cultivated soil 5 is discharged to the outside as the seed lotus root 1 grows while being prevented from leaking indefinitely.
Stems, leaves and the like grown during the growing period extend from the upper opening 13 toward the water, and the roots grow outward from the lower opening 12 and the hole 14. In addition, there are floating leaves and standing leaves, and flower buds float on the surface of the water.

When it is in the harvest period, the grown lotus root 3 is pulled up from the cultivation tank 30 together with the cultivation tube 10 as shown in FIG.
Although the harvesting time is not limited, it is usually from November to February in outdoor cultivation.
Since the cultivation pipe 10 surrounds only the cultivation water 31, it is easier to pull up compared to being buried in mud.
At the time of this pulling up, it is preferable that the cultivation water 31 contained in the cultivation soil 5 is cut off and lightened before landing.
Then, in the work place 33, the lotus root 3 is pulled out from the cultivation tube 10 together with the stem and leaves.
When it is pulled out, the cultivated soil 5 in the cultivating tube 10 is also drawn out, and the lotus root 3 is sorted and harvested therefrom.
Since the lotus root 3 to be harvested does not grow out of the cultivation tube 10, it can be harvested without being left behind.

The operation of lifting the lotus root 3 from the cultivation tank 30 may depend on manual work, but a heavy machine such as a crane can also be used.
Since the cultivation tube 10 is only immersed in the cultivation water 31 and it is easy to specify the position of the cultivation tube 10, it is easy to use a crane if a portion to be hooked is provided in the cultivation tube 10. The cultivation tube 10 can be pulled up.
Moreover, although the operation | work which pulls out the lotus root 3 from the cultivation pipe 10 may depend on manual work, you may use an extrusion and a traction apparatus.
In addition, although the example which pulls out the lotus root 3 from the cultivation pipe 10 is shown here, the pipe main body 11 after use is stored for reuse, and the seed lotus root is planted again and returned to the cultivation tank 30.

Next, effects of the cultivation method according to the first embodiment will be described.
In the growing step of the lotus root of the first embodiment, in the growing step, the cultivation tube 10 charged with the seed lotus root 1 is planted in the cultivation tank 30, and the grown lotus root 3 is pulled up together with the cultivation tube 10 at the time of harvest. Only 10 can be processed.
In addition, since the cultivation soil 5 is also included in the cultivation tube 10 and it is not necessary to surround the cultivation tube 10 with mud soil, the cultivation tube 10 is buried in the soil in the cropping step. It is not necessary, and in the harvesting step, the cultivation tube 10 can be pulled up without being dug out of the muddy soil. Therefore, according to 1st Embodiment, the work burden at the time of harvest can be reduced.
Moreover, since 1st Embodiment has arrange | positioned several cultivation pipes regularly, it can ensure sufficient photosynthesis required for growth by avoiding the leaf which grew from the grown lotus root 3 overlapping.
At the same time, the occupying area of the cultivation tank 30 occupied by one cultivation tube 10 is promoted.
Therefore, according to 1st Embodiment, compared with the conventional cultivation method in which the lotus root 3 is allowed to grow in arbitrary directions in the mud, the amount of absorption nutrients and the photosynthetic reaction of each lotus root 3 are also made uniform. Therefore, it contributes to the cultivation of lotus root 3 having a good size and quality.

Second Embodiment
Next, a lotus root cultivation method capable of further reducing the work burden will be described as a second embodiment.
The second embodiment is characterized in that a plurality of cultivation pipes 10 containing the seed lotus root 1 and the cultivation soil 5 are prepared and bundled to form a unit, and the cultivation pipe 10 is handled in units of this unit. Yes.
Hereinafter, the second embodiment will be described with reference to FIG. 4 to FIG. 6, and the same parts as those in the first embodiment are denoted by the same reference numerals as those in FIG. 1 to FIG. Sometimes.

As shown in FIG. 4, a plurality of cultivation tubes 10 are bundled to constitute a cultivation tube unit 50. Here, an example in which nine cultivation tubes 10 are arranged and bundled in three rows and three columns is shown, but this is only one example, for example, one row × three columns, two rows × three columns, three There may be rows x 4 columns.
In addition, the seed lotus root 1 and the cultivation soil 5 are prepared for each cultivation pipe 10 as described in the first embodiment.
Moreover, as long as the member which comprises the cultivation pipe unit 50 is equipped with required intensity | strength and durability, the material is not limited, However It can comprise with metal materials with small specific gravity, such as an aluminum alloy.

The cultivation pipe unit 50 is provided with an upper frame 51 and a lower frame 52 that bundle the cultivation pipes 10 on the upper side and the lower side, and the two frames 56 that are rectangular in plan view with a predetermined interval therebetween. The four corners are connected and fixed by each other.
The upper frame 51 is provided with a vertical spacer 53 and a horizontal spacer 54 in a lattice shape so that the inside and the inside of the frame are divided into three equal parts.
This lattice is configured such that the cultivation tube 10 can be inserted into each of the nine spaces partitioned by the vertical spacer 53 and the horizontal spacer 54 with almost no gap.
The lower frame 52 is provided with a lattice-like stopper 57 at the bottom so that the cultivation tube 10 inserted through the upper frame 51 does not fall out.

  The upper frame 51 is provided with a hanger 55, and when the cultivation tube unit 50 is placed in the cultivation tank 30 or pulled up, the cultivation tube 10 is a unit of the cultivation tube unit 50 using a heavy machine such as a crane. It is possible to handle with.

The plurality of cultivation tube units 50 configured as described above are arranged vertically in the cultivation tank 30 as shown in FIGS. 5 and 6. This arrangement can be performed by suspending the cultivation tube unit 50 by a heavy machine using the hanging tool 55.
Each arranged cultivation pipe unit 50 is regularly arranged with a predetermined equal interval between adjacent cultivation pipe units 50.

Thereafter, when the growing period is spent in the same manner as in the first embodiment and the harvest period is reached, the cultivation tube 10 is pulled up from the cultivation tank 30 in units of the cultivation tube unit 50 as shown by the upward arrow in FIG. A heavy machine can be used for this pulling up similarly to the arrangement.
After pulling up the cultivation tube unit 50, after removing the upper frame 51 and the lower frame 52, the lotus root 3 is harvested in the same manner as in the first embodiment.

Next, the effect by 2nd Embodiment is demonstrated.
As described above, the lotus root cultivation method according to the second embodiment handles a plurality of cultivation tubes 10 in units of the cultivation tube unit 50, so that the work of preparation and harvesting can be performed more efficiently.
Moreover, since 2nd Embodiment has arrange | positioned several cultivation tube units 50 at intervals, it ensures sufficient photosynthesis required for growth by avoiding the leaf which grew from the grown lotus root 3 overlapping. be able to.

In 2nd Embodiment, although frame bodies, such as the upper frame 51 and the lower frame 52, were used to bundle the some cultivation tube 10, it can also bundle by winding a rope around the outer periphery of the some cultivation tube 10, for example. . That is, as long as a plurality of cultivation tubes 10 can be handled as a unit, the means for bundling is not limited, and only the cultivation tubes 10 can be attached to form a unit.
Moreover, although the cultivation tank 30 was used in 2nd Embodiment, the cultivation pipe | tube 10 can also be arrange | positioned vertically in the paddy pond of an open field.

In addition, in the said embodiment, only the one part example which can implement this invention was shown, In addition to this, the structure quoted in the said embodiment is selected unless it deviates from the main point of this invention. Or can be appropriately changed to other configurations.
For example, the cultivation tank 30 can be provided outdoors such as an existing cultivation pond, or can be provided indoors such as an agricultural house.
Moreover, although the shape of the outer periphery and inner periphery in the cross section of the cultivation pipe 10 of the above embodiment is circular, this shape is arbitrary and can be made into a triangle and a rectangle.

1 seed lotus root 3 lotus root 5 cultivation soil 10 cultivation pipe 11 pipe main body 12 lower opening 13 upper opening 14 hole 15 growth chamber 20 filter 21 filter main body 22 standing piece 25 locking bar 26 through hole 30 cultivation tank 31 cultivation water 33 workplace 50 cultivation Pipe unit 51 Upper frame 52 Lower frame 53 Vertical spacer 54 Horizontal spacer 55 Lifting tool 56 Post 57 Stopper

Claims (6)

A cropping step in which a cultivation tube in which the seed lotus root is charged with cultivation soil is placed vertically in a cultivation tank in a growth room surrounded by the tube body, and
A harvesting step of pulling up the cultivation tube from the cultivation tank at the time of harvest when the seed lotus has grown into a lotus root. The cultivation tube is
A hole penetrating the front and back of the tube body;
A filter provided at the bottom of the tube main body and suppressing leakage of the cultivated soil from the growth chamber;
The cultivation method of a lotus root of Claim 1. A plurality of the cultivation tubes are arranged in the cultivation tank at equal intervals.
The cultivation method of the lotus root of Claim 1 or Claim 2. The cultivation tube in which the seed lotus root and the cultivation soil are charged,
In the planting step, in a unit of cultivation tube unit in which a plurality of the cultivation tubes are bundled, arranged in the cultivation tank at equal intervals,
In the harvesting step, the unit of the cultivation tube unit is pulled up from the cultivation tank.
The cultivation method of the lotus root of Claim 1 or Claim 2. The shape of the outer periphery in the cross section of the tube body is circular,
The cultivation method of a lotus root as described in any one of Claims 1-4. The tube body is
The cultivation method of the lotus root as described in any one of Claims 1-5 whose opening dimension of the said growth chamber is 50 mm-150 mm, and whose length is 600 mm-1200 mm.

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