JP2684081B2 - Hydroponics method and hydroponics panel - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a hydroponic cultivation method and a hydroponic cultivation panel, and has a remarkable improvement in the cultivation turnover ratio of hydroponic cultivation in a greenhouse house such as a limited cultivation area and facility area. It is intended to dramatically improve cultivation efficiency, facility efficiency, production efficiency, etc.

(Prior art) Conventionally, in the hydroponic cultivation method, a hydroponic bed is formed in the longitudinal direction, and a planting panel of a cultivated crop is dipped and floated in the hydroponic liquid stored in the hydroponic bed, or both ends thereof are appropriately supported. The method used for hydroponics, as a representative example,
Seibundo Shinkosha emits light on 25th of March and features a special volume on agriculture and horticulture, Figure 1 on page 2 of "New Technology for Hydroponic Culture", and 42-43.
M type hydroponic (trade name) disclosed in Figure 1 on page
(Refer to FIG. 2B in JP-A-60-210928).

In addition, a method of placing a planting panel of cultivated crops on a hydroponic bed and supplying hydroponics to the lower surface of the panel for hydroponic cultivation,
As a representative example, FIG. 12 in FIG. 12 on page 9 of “New technology for hydroponics” and the applicant of the present invention belonging to the hydroponic solution thin film method also disclosed on pages 57 to 59 are used. Sansui type
A method called NFT hydroponic (trade name).
There is an NFT hydroponic system shown in FIG.

The general method of hydroponics in these hydroponics facilities is
First, make a notch in a vertical and horizontal lattice pattern on the urethane mat that will be the nursery bed, put the urethane mat with the notched side down and put it in a nursery box or a nursery tank, and put an appropriate amount of seeds per unit area on the surface of the urethane mat sufficiently hydrated. , Or make a notch in the center of a small block of urethane mat with notches in a grid pattern, and sow several seeds in the notch, and it germinates and roots appropriately. The plant is cultivated until it becomes a hydroponic seedling of size (seed raising process).

Therefore, the hydroponic seedlings that had been raised to a suitable size were separated into urethane blocks each time, and they were planted using the hydroponic culture method, hydroponic bed structure and planting panels configured to suit the crops. After being transplanted to the holes, the fertilizer concentration and the liquid supply of the hydroponic liquid are controlled over a predetermined growth period, and the pH is also used for hydroponic cultivation while controlling the pH (growth cultivation step).

The rectangular planting panel to be used in this hydroponic culture has circular planting holes with a diameter of about 3 cm, and a plurality of rows of the planting holes are juxtaposed at appropriate intervals in the width direction and the longitudinal direction, The intervals between the planting holes are three kinds of hydroponics such as trifoliate, sung chrysanthemum, allium, leaf vegetables such as soft vegetables such as salad vegetables, carnations, flowering plants such as lisianthus, and growth of medicinal plants. In consideration of the efficiency of cultivated bones, various types are prepared from relatively densely spaced to coarsely spaced, and when changing cultivated crops, planting holes are set in a planting panel opened at suitable intervals. This has been changed so that the cultivation period from the initial planting of hydroponic seedlings to the harvest will be handled uniformly.

As a matter of course, the cultivation condition is 1 at the early stage of planting.
The planting space per plant, which has a sufficient margin, gradually grows as the growing stage progresses, and at the final harvest stage, the upper surface of the planting panel grows dense. Will grow up.

Therefore, after seedling cultivation of soft vegetables, when planted in a planting panel and grown and cultivated, when it has three leaves,
Usually, about 8 to 10 times a year requires about 30 to 40 days per work, and when it is hydroponic leek, it usually takes about 6 to 8 times a year and about 50 per work. It grows to a size that can be harvested in about 60 days.

As described above, the growing period itself of a cultivated crop varies slightly depending on the season and depending on the cultivated crop, but the number of cultivation days per crop is almost unchanged.

(Problems to be solved by the invention) However, in the conventional method as described above, the planting panel adopted for each cultivated crop uniformly responds to the culturing period from planting of hydroponic seedlings to harvesting. Therefore, there is room for improvement in using the limited cultivation area, facility area, etc. as effectively as possible to significantly increase the cultivation turnover rate of hydroponics and dramatically increase the number of plantings. I have left.

Looking at the case of trefoil, which is a soft vegetable,
After planting the hydroponic seedlings in the planting panel, the growth is relatively slow until the growing stage of about 15-20 days in the first half where the three leaves grow, despite the fact that there is enough room for the growing space in the planting panel However, the conventional method has been neglected as the unavoidable existence of the empty space.

(Means for Solving the Problems) Therefore, in the present invention, cultivation at relatively narrow intervals is made possible in the first half of the growing and cultivating process.
A hydroponic cultivation method by a two-step method that can accommodate the cultivation interval after the middle stage, and in the case of cultivated crops that grow comparatively slowly, according to the growth condition. An epoch-making cultivation method that can efficiently support cultivation with a three-stage hydroponics method of the early growth period, middle growth period, and late growth period by expanding the growth interval in stages, and versatility that can flexibly cope with it By developing a hydroponic cultivation panel with certainty, and effectively utilizing the limited cultivation area, facility area, etc. as much as possible, the cultivation turnover rate of hydroponics can be markedly increased, and the number of cultivation crops can be significantly increased. It is something that can be increased.

(Working) Thus, in the case of a typical example of a two-stage hydroponics method consisting of an early growth period and a late growth period, a planting panel P ₁ in which a notch 2 is made in each planting hole 1 for each row, In planting hole 1 of P ₄ ,
The cutting early period process of transplanting the hydroponic seedling X and using it for hydroponic cultivation,
At the stage where it has grown to an appropriate size, to form a long strip form relatively wide separates the planting panel P _1, P ₄ for each column of the planting hole 1 of a narrow length, the strip panel P ₂ , support panels P ₅
It consists of the latter stage step of cultivation, which is transferred to the transplant hole 3 opened in P ₃ and subjected to hydroponic cultivation.

In addition, in the case of a typical example of a three-stage hydroponics method consisting of the early growth period, the middle growth period, and the late growth period, the planting hole 1 of the planting panel P _{4 in} which the notch 2 is formed in the vertical and horizontal directions of the planting hole 1 In the early stage of growth in which the hydroponic seedlings X are transplanted and used for hydroponic cultivation, and at the stage when it grows to an appropriate size, the planting panel P ₄ is separated for each row of the planting holes 1 and has a relatively wide width. Is formed into a narrow strip with a long length, and this strip panel P ₅ is used as a support panel.
At the middle stage of the growth process, in which it is transferred to the transplant hole 3 opened in P ₃ and used for hydroponic cultivation, and at the stage when it grows to an appropriate size, it is separated for each fixed hole 1 of the band panel P ₅ and the minimum unit Panel piece P ₆
And the panel piece P ₆ is transferred to the transplant holes 5 formed in the support panel P ₇ at relatively coarse intervals and subjected to hydroponics.

(Example of Cultivation Panel) Hereinafter, a hydroponic cultivation panel P made of Styrofoam for planting, supporting, etc. according to the present invention will be described with reference to the accompanying drawings.

In FIG. 1, P1 is a rectangular plate-shaped planting panel, in which the planting holes 1 are formed at relatively close intervals in the vertical and horizontal directions, and the notches 2 in each row have an appropriate depth. It can be separated into strip-shaped panels that are relatively narrow and long. In FIG. 3, P ₂ is a strip panel obtained by separating the planting panel P ₁ into a strip shape having a relatively narrow width and a long length, and P ₃ is a rectangular plate-shaped support panel having a relatively narrow width and a long length. Of the long strip-shaped transplant holes 3 are formed in parallel with each other at appropriate intervals, and an engagement step portion 4 for fitting the strip panel P ₂ and transferring and supporting the strip panel P ₂ is formed in the transplant hole 3. Has been formed.

The support panel P ₃ functions as a support member for the strip panel P ₂ .

In FIG. 5, P ₄ is a rectangular plate-shaped planting panel, and in the vertical and horizontal directions (width direction and longitudinal direction), the planting holes 1 are opened at relatively close intervals like the planting panel P ₁ described above. The cutouts 2 are formed in a lattice shape in the vertical and horizontal directions of the planting hole 1 to an appropriate depth, and are separated into strips for each row of the planting hole 1 to have a relatively narrow width and a long length. while the separable strip panel P ₅ of the strip panel form, the band panel P ₅
It is also possible to separate each of the planting holes 1 into a square unit panel piece P ₆ of the minimum unit.

In FIG. 8, P ₇ is a rectangular plate-shaped support panel, in which rectangular transplant holes 5 are formed in the longitudinal and transverse directions at relatively coarse intervals, and the panel is provided at the lower end of the transplant hole 5. An engagement step portion 6 is provided for fitting and mounting and supporting the piece P ₆ .

In FIG. 10, P ₈ is a spacer panel in the form of a strip panel having a relatively narrow width and a long length, and is used in place of the support panel P ₃ .

The spacer panel P ₈ is typically supported by passing pointing in the width direction of the hydroponic beds B, are also subjected to sandwich in hydroponics between strip panel P ₅ and strip panel P ₅ passed pointing in the width direction.

(Example of Hydroponic Bed) Next, the configuration of the hydroponic bed B shown in the accompanying drawings and the state of the facility will be described.

First, the hydroponic bed B is made of styrofoam and is integrally formed in an upward U-shape. The main part of the hydroponic bed B is composed of side plate parts 7 that are raised on both left and right sides and a bottom plate part 8 that is uneven. Among them, in the center of the bottom plate portion 8, a low-level ridge portion 9 is projectingly provided in the longitudinal direction, and a shallow groove portion 10 is provided on both left and right sides thereof, and the left and right side plate portions are provided. Corner step portions 11 having substantially the same height as the ridge portion 9 are formed at the left and right corner portions of the bottom plate portion 7 and the bottom plate portion 8.

To install this hydroponic bed B in a greenhouse house, first,
A cradle for the hydroponic bed B (not shown) at a waist height position
Is made up of a pipe material and the like in a state in which the frame is slightly tilted backward in the longitudinal direction, and hydroponic beds B are successively butted on the pedestal and continuously provided in the longitudinal direction, and a lid plate is provided at the front and rear ends thereof. Then, a vinyl sheet S is laid on the inner surface of the continuous long hydroponic bed B, and a feed pipe for the hydroponic liquid W is attached to the front end of the hydroponic bed B. A drainage pipe for the hydroponic liquid W is connected to the rear end portion, and a sterilizer for the hydroponic liquid W, a supply tank, a supply pump, etc. are configured between the feed pipe and the discharge pipe. .

(Example of hydroponic cultivation method) Next, the planting panel P _1, P _4, strip panel P _2, P _5, support panel P _3, P _7, the spacer panel P ₈ etc., used in various combinations The procedure of several hydroponic cultivation methods will be described.

(First Example) A representative example of the two-stage hydroponic cultivation method of the present invention will be described as the first example.

First, disconnect the Mizukonae X which is nursery urethane mat for each urethane block U, the planting panel P ₁ it was continuously provided one after another butt in the longitudinal direction of the hydroponic beds B as shown in FIG. 2 Along with transplanting to the planting hole 1, the hydroponic solution W is sufficiently supplied to the hydroponic bed B to form a kind of hydroponic tank, and the planting panel P ₁ is immersed in the hydroponic solution W of the hydroponic bed B. Hydroponic culture is performed in a floating state (early growth process).

Of course, depending on the cultivated crop, the hydroponic liquid W is intermittently supplied at a stage when the rooting is recognized and the growth starts to be stabilized, and the hydroponic liquid W is supplied from the upstream side to the downstream side of the hydroponic bed B. It is also possible to use hydroponics with the so-called NFT method in which it is made into a thin film and flowed, but in the early stage of planting, it is cultivated uniformly in the floating state in order to promote root rooting and sufficient growth of hair roots. It is desirable to do.

Next, when the second half of the growth in which the growth of the cultivated crop Y has progressed is approached, the leaf stems of the cultivated crop Y in the planting panel P ₁ further expand and become dense.

At the stage when the latter half of this growth was approaching, hydroponic bed B
It is taken out of the planting panel P ₁ from the planting panel P ₁
Is cut into strips from the notch 2 and separated and formed on the strip panel P ₂ while supporting the growing crop Y.

This time, it is transferred to the hydroponic bed B in which the support panels P ₃ are abutted and arranged in the longitudinal direction, and the band panel P ₂ is fitted into the transplant hole 4 of the support panel P ₃ as shown in FIG. Is transferred and supported, and the growing interval of the cultivated crop Y is expanded in one direction, for example, in the width direction of the hydroponic bed B (or in the longitudinal direction), and is used for hydroponic cultivation (late growth step). ).

Even at this stage, especially in the initial stage of transfer, the roots are cultivated for a while in a floating state in order to promote root survival and sufficient growth of hair roots, and then the hydroponic liquid W is cut off and drained to remove the roots. After supplying sufficient oxygen to the plant, the so-called NFT system is switched to be used for hydroponic cultivation.

Of course, even in the latter stage of this growth, depending on the cultivated crop Y, the support panel P _{3 on} which the strip panel P ₂ is transferred is dipped in the hydroponic solution W of the hydroponic bed B and cultivated in a floating state, or It is also possible to cultivate while changing the liquid level of the hydroponic liquid W.

(Second example) Next, a cultivated crop that grows relatively slowly and extends for a long period is
A typical example of a three-stage hydroponic culture method suitable for efficient hydroponic culture will be described with reference to FIGS. 6, 7, and 9.

First, hydroponic seedlings X separated for each urethane block U
As shown in FIG. 6, while transplanting them to the planting holes 1 of the planting panels P ₄ that are successively arranged in the longitudinal direction of the hydroponic bed B,
The hydroponic solution W is sufficiently supplied to the hydroponic bed B to form a kind of hydroponic tank, and the planting panel P ₄ is dipped in the hydroponic bed B and hydroponically cultivated in a floating state (early growth step).

Next, when the growth of the cultivated crop Y progresses and approaches the middle stage of growth, the leaf stems of the cultivated crop Y in the planting panel P ₄ further expand and become dense.

At the stage of approaching this middle stage of growth, the planting panel P ₄ is taken out from the hydroponic bed B, and the planting panel P ₄ is cut into strips from the cut 2 to produce a cultivated crop Y in the process of growing.
Are formed separately on the belt panel P ₅ in a state of supporting.

As shown in FIG. 7, it is transferred to a hydroponic bed B in which support panels P ₃ are abutted in the longitudinal direction, and the band panel P ₅ is fitted into the transplant hole 4 of the support panel P ₃ for transfer support. Then, with this, the growth interval of the cultivated crop Y is unidirectional, for example,
The hydroponic bed B is expanded in the width direction (or in the longitudinal direction) and used for hydroponic cultivation (middle growth step).

Further, when the cultivated crop Y approaches the latter stage of growth, the leaf stems of the cultivated crop Y in the support panel P ₃ are remarkably elongated and prosperous.

At the stage approaching the latter half of this growth, the strip panel P ₅ is taken out from the support panel P ₃ of the hydroponic bed B, and the cultivated crop Y is separated in the planting hole 1 of the strip panel P ₅ by the same tool.
Separately form panel piece P ₆ of the minimum unit.

As shown in FIG. 9, it is transferred to a hydroponic bed B in which support panels P ₇ are abutted and connected in the longitudinal direction, and the smallest unit panel piece P ₆ is fitted into the transplant hole 5 of the support panel P _7. It is transferred and supported, and thereby, the growth interval of the cultivated crop Y is expanded in the other direction, for example, in the longitudinal direction of the hydroponic bed B, and is used for hydroponic cultivation (late growth step).

At the initial stage of planting, it is desirable to cultivate uniformly in the floating state in order to promote root survival and sufficient growth of hair roots, as in the case of the first example.

In addition, in the early stage of transfer in the middle stage of growth or the late stage of growth, in order to promote root rooting and sufficient growth of hair roots, it is cultivated for a period of time in a floating state, and then the hydroponic liquid W is cut off and drained. Then, after supplementing the roots with sufficient oxygen, the roots are switched to the so-called NFT method and then subjected to hydroponics for cultivation.

Of course, even in the middle and late stages of growth, depending on the cultivated crop Y, the support panel P on which the belt panel P ₅ is transferred may be transferred.
₃ or the supporting panel P with the smallest unit panel piece P ₆ transferred
₇ can be soaked in the hydroponic liquid W of the hydroponic bed B and cultivated in a floating state, or can be used for hydroponic cultivation while changing the liquid level of the hydroponic liquid W.

(Third Example) Next, instead of the support panel P ₃ in the first and second examples, used in the growth medium term of the second example, the spacer panel P ₈ long strip forms a relatively narrow width length Then, the case of using the three-stage system for hydroponic cultivation will be described.

This is a pre-growth process in which a hydroponic seedling X is transplanted into hydroponic culture by transplanting the hydroponic seedlings X into the planting holes 1 of the planting panel P ₄ which is formed by making cuts 2 in the vertical and horizontal directions of the planting holes 1 as shown in FIG. , When it grows to a proper size, the planting panels P ₄ are separated for each row of the planting holes 1 to form a strip shape having a relatively narrow width and a long length, and the strip panels P ₅ are As shown in FIG. 10, the hydroponic beds B are arranged in the width direction and are continuously arranged in the longitudinal direction, and spacer panels P ₈ are alternately sandwiched between these strip panels P ₅ and strip panels P _5. At the middle stage of the growth process for hydroponics and at the stage when it grows to an appropriate size, it is separated into each planting hole 1 of the zonal panel P ₅ and the minimum unit panel piece P ₆
And the panel piece P ₆ is transferred to the transplanting holes 5 formed in the support panel P ₇ at relatively coarse intervals as shown in FIG. Hydroponics method is used. In addition, in each of the above-mentioned embodiments, the cutouts 2 in the planting panels P ₁ and P ₄ and the band panel P ₅ are shown on the front surface of the panel. Even if the notch 2 is configured to support hydroponic cultivation, it does not change the gist of the present invention.

(Effects of the Invention) In the case of the representative example of the two-stage system consisting of the early growth period and the late growth period as described above, the present invention is a planting panel P ₁ having notches 2 for each row of planting holes ₁ . In planting hole 1 of P ₄ ,
The early-stage growth step in which the hydroponic seedlings X are transplanted and subjected to hydroponic cultivation,
At the stage where it has grown to an appropriate size, to form a long strip form relatively wide separates the planting panel P _1, P ₄ for each column of the planting hole 1 of a narrow length, the strip panel P ₂ , support panels P ₅
A hydroponic cultivation method consisting of the latter stage of cultivation, which is transferred to the transplant hole 3 opened in P ₃ and used for hydroponic cultivation, and a typical example of a three-stage method consisting of the early growth period, the middle growth period and the late growth period In this case, a pre-growth step in which a hydroponic seedling X is transplanted into a planting hole 1 of a planting panel P ₄ which is formed by making cuts 2 in the vertical and horizontal directions of the planting hole 1 and is used for hydroponic cultivation, and which has an appropriate size. At the stage of growing, the planting panel P ₄ is separated for each row of the planting hole 1 to form a strip shape having a relatively narrow width and a long length, and the strip panel P ₅ is opened to the support panel P ₃ . At the mid-stage growth step of transferring to the transplanting holes 3 for hydroponics, and at the stage when it grows to an appropriate size, it is separated for each planting hole 1 of the zoning panel P ₅ and the minimum unit panel piece P ₆ formed in, provided the panel piece P ₆ and transferred to the transplant hole 5 made open to relatively coarse intervals hydroponics to support the panel P ₇ Since it is a hydroponic cultivation method consisting of the latter stage of growth process, it is possible to deal with hydroponic cultivation by using the effective cultivation space such as limited cultivation area and facility area as efficiently as possible. Not only does it significantly improve cultivation efficiency, facility efficiency, production efficiency, etc., it also dramatically increases the cultivation turnover rate of hydroponic cultivation, which contributes to a significant increase in the number of crops. Contribute to significant increase in revenue and profitability.

In addition, the planting panels P ₁ , P ₄ , obi panels in the present invention
P _2, P _5, the panel piece P _6, support panel P _3, P _7, by combining various spacer panels P ₈ etc., a method of hydroponic culture 2-stage system consisting of a growth year and late growth stage, growth year In addition to being able to flexibly cope with the three-stage hydroponics method consisting of the middle growing period and the late growing period, the constituent members such as planting panels P ₁ and P ₄ and obi panels P ₂ and P ₅ and supporting panel
Hydroponic cultivation panels such as P ₃ and P ₇ and spacer panel P ₈ bring about various effects such that they can be effectively used for extremely wide range of cultivated crops as an independent single product.

[Brief description of the drawings]

Fig. 1 is a perspective view showing a first example of a planting panel in which notches are made in each row of planting holes, and Fig. 2 is a series of planting panels of Fig. 1 arranged in the longitudinal direction of the hydroponic bed. Fig. 3 is a perspective view showing a hydroponic culture state of Fig. 3, Fig. 3 is a perspective view showing a band panel separated for each row of planting holes and a support panel on which it is transferred, and Fig. 4 is a transfer panel to the support panel. Fig. 5 is a perspective view showing the state of hydroponics in the latter stage of growth, Fig. 5 is a perspective view showing a second example of a planting panel with notches in the horizontal and vertical directions of the planting hole, and Fig. 6 is a hydroponic bed. Figure 5 is a vertical perspective view showing the hydroponic culture in the early stage of growth, in which the planting panels of Figure 5 are connected in the longitudinal direction, and Figure 7 is a hydroponic culture in the middle of growth, in which a notched belt panel is transferred to the support panel. FIG. 8 is a vertical perspective view showing a state, and FIG. 8 is a perspective view of a support panel in which transplant holes are opened at relatively coarse intervals. Fig. 8 is a longitudinal perspective view showing the state of hydroponics in the latter stage of growth in which the smallest unit panel piece is transferred to the support panel, which is continuous in the longitudinal direction of the hydroponic bed, and Fig. 10 is a band with cuts. It is a vertical perspective view which shows the state of hydroponics in the middle of growth with the spacer panel sandwiched between the panel and the strip panel. Code table B ... Hydroponic bed, W ... Hydroponic liquid P ... Cultivation panel, S ... Vinyl sheet X ... Hydroponic seedling, Y ... Cultivated crop U ... Urethane block P ₁ , P ₄ ... … Planting panel, P ₂ , P ₅ …… Band panel P ₃ , P ₇ …… Support panel, P ₆ …… Panel piece P ₈ …… Spacer panel 1 …… Planting hole 2 …… Cuts 3, 5 …… Grafting hole 4,6 ... Engaging step 7 ... Side plate, 8 ... Bottom plate 9 ... Ridge, 10 ... Groove 11 ... Corner step

Claims (4)

(57) [Claims] 1. A hydroponic cultivation method in which a hydroponic seedling X is transplanted to a planting hole 1 of a planting panel P ₁ or P ₄ for hydroponic cultivation, and a notch 2 is formed in each row of the planting hole 1 Panel P ₁ , P ₄
In the early growth step of transplanting the hydroponic seedlings X into the planting holes 4 of No. 3 and using for hydroponic cultivation, and at the stage when it grows to an appropriate size,
Planting hole planting panel P ₁ for each column of 1, a relatively wide separates the P ₄ is formed in a long belt-like form of a narrow length, the strip panel P _2,
A hydroponic cultivation method comprising a late growth step in which P ₅ is transferred to the transplant hole 3 formed in the support panel P ₃ and subjected to hydroponic cultivation. 2. A hydroponic cultivation method in which a hydroponic seedling X is transplanted to a planting hole 1 of a planting panel P ₁ or P ₄ and used for hydroponic cultivation, in which a notch 2 is cut in the vertical and horizontal directions of the planting hole 1. Panel P ₄
In the early growth step of transplanting the hydroponic seedling X into the planting hole 1 of No. 1 and using it for hydroponic cultivation, and at the stage when it grows to an appropriate size,
The planting panels P ₄ are separated for each row of the planting holes 1 to form a strip shape having a relatively narrow width and a long length, and the strip panels P ₅ are transferred to the transplanting holes 3 opened in the support panel P _3. At the middle stage of the growing process for hydroponics and the stage where it grows to an appropriate size, it is separated for each planting hole 1 of the band panel P ₅ to form a minimum unit panel piece P ₆ , and this panel piece A hydroponic cultivation method comprising a latter stage of growth in which P ₆ is transferred to the transplantation holes 5 formed on the support panel P ₇ at relatively coarse intervals and subjected to hydroponic cultivation. 3. A hydroponic cultivation method in which a hydroponic seedling X is transplanted into a planting hole 1 of a planting panel P ₁ or P ₄ for hydroponic cultivation, and a cut 2 is made in the vertical and horizontal directions of the planting hole 1 in the planting. Panel P ₄
In the early growth step of transplanting the hydroponic seedling X into the planting hole 1 of No. 1 and using it for hydroponic cultivation, and at the stage when it grows to an appropriate size,
The planting panel P ₄ is separated for each row of the planting holes 1 to form a strip shape having a relatively narrow width and a long length, and a spacer panel P ₈ is sandwiched between the strip panel P ₅ and the strip panel P _5. At the mid-stage growth step for hydroponics and at the stage when it grows to an appropriate size, it is separated for each planting hole 1 of the band panel P ₅ to form a minimum unit panel piece P ₆ , and this panel piece P 6 ₆ support panel P ₇
A hydroponic cultivation method comprising a latter stage of growth step of transferring to the transplant holes 5 formed at relatively coarse intervals to provide hydroponics. _4. A hydroponic cultivation panel in which planting holes 1 are opened in the vertical and horizontal directions of the planting panels P ₁ and P ₄ , and a strip having a relatively narrow width and a long length separated for each row of the planting holes 1. Panel P ₂ ,
P ₅ and a support panel P _{3 formed} by arranging a relatively narrow and long graft hole 3 side by side are combined, and the band panels P ₂ and P ₅ are transferred to the graft hole 3 of the support panel P _3. A hydroponic cultivation panel characterized by being mounted and supported.