KR20210063842A - Seedling and cultivating device using LED lighting and seedling and cultivation method using thereof - Google Patents

Abstract

The present invention can perform germination, seedling, and cultivation of plants at once. More specifically, the present invention relates to a cultivation device in which a germination nursery and a cultivation room are arranged adjacently, a culture solution can be supplied to each of the germination nursery and the cultivation room, and the remaining culture solution is recovered to be reused.

Description

Seedling and cultivating device using LED lighting and seedling and cultivation method using the same {Seedling and cultivating device using LED lighting and seedling and cultivation method using thereof}

The present invention relates to a plant cultivation device in which an LED is installed in a cultivation device, and a seedling tray is placed in a cultivation room to configure a culture solution supply line to grow seedlings. More specifically, the germination nursery and the cultivation room are arranged adjacent to each other, so that plants can be germinated in one cultivation device, and even cultivation can be performed at once. In addition, it relates to a cultivation device capable of recovering and reusing the residual culture solution in the cultivation device.

Hydroponics refers to a method of growing plants in a culture medium made of water and water-soluble nutrients without the use of soil. It can be called high value-added agriculture.

Hydroponics has the advantage of being able to grow more plants in a limited space by vertically arranging the cultivation plates in multiple stages or rotating them according to the plants to be grown.

However, in the case of conventional hydroponics facilities, there was a hassle of germinating the seeds of plants in the germination room and then applying them to the plant cultivation apparatus through the seedling period in the seedling room. In the case of the conventional hydroponic cultivation facilities, the culture solution is excessively large. There was also the disadvantage that it was consumed and not economical.

An object of the present invention is to provide a seedling and cultivation apparatus capable of integrating the process from germination of a plant to cultivation.

In addition, the present invention is to provide a culture medium supply device that can efficiently utilize the culture medium.

The present invention relates to a plant seedling and cultivation apparatus, comprising a single or a plurality of layers, a first seedling tray for germinating and seeding plants, a first seedling tray handle, a culture solution supply hose for supplying a culture solution, and draining the culture solution A germination seedling room equipped with a drainage device and a drainage pipe for transporting the culture solution drained from the drainage device, a second seedling tray disposed adjacent to the germination and seedling room, constituting a single or a plurality of layers, and in which plants are planted; A cultivation room having a mounting unit to which the second seedling tray can be mounted, a first light source unit providing light to the germination and seedling room, and a second light source unit providing light to the cultivation room, the first seedling tray and the second 2 It includes a culture solution providing unit that provides the culture solution to at least one of the root areas of the seedling tray, and a culture solution recovery unit that collects the remaining culture solution and sends it to the culture solution provider.

In one embodiment of the present invention, the culture solution supply hose is a corrugated form, it may be composed of a flexible structure.

In one embodiment of the present invention, the drainage device may include a water level control device.

In one embodiment of the present invention, the culture solution providing unit may provide the culture solution by spraying the culture solution to the root zone of the planted plant.

In one embodiment of the present invention, the culture solution providing unit may include a timer that can adjust the time for spraying the culture solution.

In one embodiment of the present invention, the culture solution providing unit may include a solenoid valve.

In one embodiment of the present invention, the cultivation chamber may include a transfer unit for moving the mounting unit mounted with the second seedling tray up and down.

In an embodiment of the present invention, the first light source unit and/or the second light source unit may be an LED.

In an embodiment of the present invention, the first light source unit may maintain a dark condition for a predetermined period in the germination and seedling room, and the second light source unit may maintain a dark condition for a predetermined period in the cultivation room.

In an embodiment of the present invention, the first light source unit may adjust the amount of light under bright conditions in the germination and seedling room, and the second light source unit may control the amount of light under bright conditions in the cultivation room.

The present invention relates to a plant germination and seedling method using a plant seedling and cultivation apparatus, comprising the steps of planting the seeds of the plant in a first seedling tray in a germination and seedling room, and a first light source unit applying light to the first seedling tray Providing the culture solution in such a way that the culture solution providing unit injects the culture solution into the first seedling tray according to the step of providing and whether the switch is turned on or off, and the culture solution injected into the first seedling tray in excess is a drainage device It may include the step of being recovered to the culture solution recovery section through the step of being sent to the culture solution provider and providing the culture solution in a way that the culture solution providing section injects the culture solution back into the first seedling tray.

The present invention relates to a plant seedling and plant cultivation method using a cultivation apparatus, comprising the steps of planting a plant on a second seedling tray in a cultivation room disposed adjacent to a germination and seedling room, and a second light source unit comprising the second seedling tray and providing the culture solution in such a way that the culture solution providing unit sprays the culture solution on the rhizome part of the plant planted in the second seedling tray, depending on whether the switch is turned on or off, and the rhizome part of the plant. After spraying, the culture solution that has fallen to the bottom of the cultivation room is recovered to the culture solution recovery section and sent to the culture solution provider, and the culture solution provider again sprays the culture solution on the root zone of the plant planted in the second seedling tray. It may include the step of providing the culture solution in a manner.

In one embodiment of the present invention, the step of providing the culture solution may further include adjusting the injection amount of the culture solution through a solenoid valve according to a user's signal.

In one embodiment of the present invention, the step of providing the culture solution may further include moving the mounting unit on which the second seedling tray is mounted up and down according to a user's operation.

Through the present invention, it is possible to perform germination, seedling, and cultivation of plants at once. In addition, by adopting a method of spraying the culture solution, the culture solution is consumed less, and when the sprayed culture solution falls to the bottom of the cultivation room, the culture solution is recycled again, so that the plant can be grown using the culture solution efficiently. It can contribute to the advancement of germination, seedling and cultivation processes of plant factories.

1 is a front view of a plant seedling and cultivation apparatus according to an embodiment of the present invention.
2 is a plan view of a plant seedling and cultivation apparatus according to an embodiment of the present invention.
3 is a side view showing a plant seedling and cultivation apparatus according to an embodiment of the present invention.
4 is a flowchart illustrating a method for germination and seedling of a plant using the plant seedling and cultivation apparatus according to an embodiment of the present invention.
5 is a flowchart illustrating a method of growing a plant using the plant seedling and cultivation apparatus according to an embodiment of the present invention.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the text. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the present invention, when it is determined that a detailed description of a related known technology may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

The terms used in the present application are only used to describe specific embodiments, and are interpreted as meanings generally used in the technical field to which the present invention belongs, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, terms such as "comprise" or "have" are intended to designate that a feature, number, step, element, or combination thereof described in the specification is present, and includes one or more other features or numbers, It should be understood that it does not preclude the possibility of the presence or addition of steps, components, or combinations thereof.

Terms such as first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another component.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the drawings. The exemplary embodiments described above in the detailed description, drawings, and claims are not intended to be limiting, and other embodiments may be used, and other changes may be made without departing from the spirit or scope of the technology disclosed herein.

Since the description of the disclosed technology is merely an embodiment for structural or functional description, the scope of the disclosed technology should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various changes and may have various forms, it should be understood that the scope of the disclosed technology includes equivalents capable of realizing the technical idea.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the disclosed technology belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as being consistent with the meaning in the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present application.

In general, the cultivation system of crops can be broadly divided into open field cultivation and facility cultivation. In the above, facility cultivation mainly refers to growing plants using a glass greenhouse or a plastic house. In particular, in recent years, due to excessive use of chemical fertilizers or agricultural chemicals, the quality of the soil has deteriorated and plant growth is hindered by growing plants in poor soil conditions. It is not possible to expect to get a good harvest whether it is field cultivation or facility cultivation. Therefore, hydroponics using a culture medium is widely practiced.

In the case of conventional hydroponic cultivation facilities, there was a inconvenience in that the seeds of plants were germinated in the germination room and then applied to the plant cultivation apparatus through a seedling period in the seedling room, and there was a disadvantage in that a large amount of culture solution was consumed compared to the present invention. In order to improve these disadvantages, the present invention is to provide a seedling and cultivation apparatus capable of integrating the process from germination of plants to cultivation. In addition, the present invention is intended to provide a culture medium supply device that can be utilized efficiently by utilizing the culture medium in a circulating manner.

Hereinafter, with reference to the drawings, preferred embodiments of the present invention will be described in more detail.

1 is a front view of a plant seedling and cultivation apparatus according to an embodiment of the present invention, FIG. 2 is a top view of a plant seeding and cultivation apparatus according to an embodiment of the present invention, FIG. 3 is It shows a side view of a plant seedling and cultivation apparatus according to an embodiment of the present invention. 4 shows a method for germination and seedling of a plant using the plant seedling and cultivation apparatus according to an embodiment of the present invention. 5 is a flowchart illustrating a method of growing a plant using the plant seedling and cultivation apparatus according to an embodiment of the present invention.

1 to 3 , the apparatus for seeding and cultivating plants according to an embodiment of the present invention includes a germination and seedling room 100 , a cultivation room 200 , a first light source unit 130 , and a second light source unit 220 . , a culture solution providing unit 300 , and a culture solution recovery unit 400 . The germination and seedling room 100 may include a first light source 130 , and may include a first seedling tray 160 and a first seedling tray handle 320 , and the first seedling tray ( 160) may be placed in the first seedling tray. The cultivation room 200 may include a second light source unit 220 , a second seedling tray 240 , a transfer unit 280 , and a mounting unit 260 for mounting the second seedling tray 240 . can

In the plant seedling and cultivation apparatus, the germination and seedling room 100 may include the first seedling tray 160 . The germination and seedling chamber 100 and/or the first seedling tray 160 may be composed of a plurality of layers.

The first seedling tray may be placed in the first seedling tray 160 . In the first seedling tray, seeds are planted, the seeds germinate, and they are transferred to the cultivation room 200 to be grown to the extent that they can be grown hydroponically. At this time, it is preferable that the root of the germinated plant be about 1 cm or more, but this is only an example and is not limited thereto.

The first seedling tray may be made of plastic, but the material is not limited thereto. In addition, the first seedling tray provides one space for each seed, and each seed may be provided in a separate form, but is not limited thereto. In addition, the first seedling tray may be in the form of hydroponic culture filled with culture medium, or may be in the form of soil culture filled with culture soil, but this is only an example and is not limited thereto.

The first seedling tray 160 may include the first seedling tray handle 320 . When the first seedling tray handle 320 is pulled, the first seedling tray 160 may be opened in a drawer manner. By adopting the open structure as described above, the user can easily place the first seedling tray on the first seedling tray 160 .

A first light source unit 130 may be configured in the upper portion of the germination and seedling room 100 . The first light source unit 130 is configured to artificially provide light so that plants can be grown even in an environment without natural light.

The first light source unit 130 may irradiate light of a specific wavelength band through an on-off method. The light of the specific wavelength band may be 390 nm to 725 nm, which is a visible light wavelength band. In addition, the first light source unit 130 may be a light emitting diode (LED). However, this is only an example, and is not limited thereto.

The first light source unit 130 may maintain a dark condition for a certain period of time in the germination and seedling room 100 , and may adjust the amount of light in a bright condition. Through this, cultivation according to the type of plant is possible by controlling the amount of light in dark or bright conditions according to the type of plant.

A culture solution supply hose of a wrinkled form (a bellows form) may be connected to the rear portion of the first seedling tray 160 . As the culture solution supply hose is configured in a corrugated shape (jabara shape), the culture solution supply hose is always connected to supply the culture solution even when the first seedling tray 160, which is a drawer shape, is taken out. In addition, as the culture medium supply hose is configured in a corrugated form (a bellows form), it is convenient that the culture medium supply hose does not need to be detached even when the first seedling tray 160 in a drawer form is taken out. The culture medium supply hose may be driven in an on-off manner. In addition, the bottom of the first seedling tray 160 may include a drainage device for sending the culture solution to the culture solution recovery unit (400). A water level control device is attached to the drainage device, and when the culture solution exceeds a predetermined water level, it may be sent from the first seedling tray 160 through the drainage pipe to the culture solution recovery unit 400 .

In the plant seedling and cultivation apparatus, the cultivation chamber 200 is configured with a mounting part 260 capable of mounting the second seedling tray 240 . A plurality of hole for planting is disclosed in the second seedling tray 240, and the hole for planting may be a circle having a diameter of 1 cm to 20 cm, but this is only an example, and the size and shape are not limited thereto. The cultivation chamber 200 and/or the second seedling tray 240 may be configured in a plurality of layers. In addition, the mounting unit 260 may be configured in a plurality of numbers, and a plurality of second seedling trays 240 may be mounted thereon.

The formal hole may be formed in various sizes, respectively. As the size of the formal hall is formed in various ways, it is possible to arrange the plant in an appropriate formal hall according to the size of the plant, so that it is possible to receive more culture medium for a large plant. However, this is only an example and is not limited thereto.

The formal port may be mounted in the formal hole, and the formal port may be made of plastic, but the material is not limited thereto. In addition, a plant that has germinated and has taken root in the first seedling tray may be transplanted into the formal pot. The formal port is configured in the form of a hole in the lower part, so that the plant does not escape downward, and only the root can escape downward. However, this is only an example and is not limited thereto.

In addition, the plant in which the rhizome part is fixed to the rhizome part supporter may be planted in the planting pot with a hole in the lower part. The rhizome support allows the plant to be fixed in the pot, and absorbs moisture as a porous structure to continuously provide the plant with a culture solution. In one embodiment of the present invention, the rhizome support may be a sponge, an expanded clay coagulant, rock wool, coconut fiber, perlite, vermiculite, wool, a water-absorbing polymer, and the like. However, this is only an example and is not limited thereto.

The cultivation chamber 200 discloses a mounting part 260 to which the second seedling tray 240 can be mounted, and the transfer unit 280 capable of moving the mounting part 260 up and down is disclosed. . As the transfer unit 280 moves the mounting part 260 up and down, the second seedling tray 240 also moves up and down, and accordingly, the root root part of the plant planted in the second seedling tray 240 . It is possible to adjust the distance between and the culture solution providing unit 300 . Through this, it is possible to control the amount of the culture solution sprayed to the root zone of the plant. However, this is only an example and is not limited thereto.

The cultivation chamber 200 may include a transfer unit 280 for vertically moving the mounting unit 260 on which the second seedling tray 240 is mounted. Through this, the distance between the root zone of the plant and the culture solution providing unit 300 can be adjusted, and accordingly, the amount of the culture solution in contact with the root zone of the plant can be adjusted.

The cultivation chamber 200 may include the second light source 220 . The second light source unit 220 is configured to artificially provide light of a specific wavelength band so that plants can be grown even in an environment without natural light. The second light source 220 may be driven in an on-off manner.

Since the second light source unit 220 is disposed on the second seedling tray 240 , it is possible to irradiate light of a specific wavelength band to the plants planted in the second seedling tray 240 . The light of the specific wavelength band may be 390 nm to 725 nm, which is a visible light wavelength band. However, this is only an example, and is not limited thereto. Also, the second light source 220 may be a light emitting diode (LED). However, this is only an example, and is not limited thereto.

The second light source unit 220 may maintain a dark condition for a certain period of time in the cultivation chamber 200 and may adjust the amount of light under a bright condition. Through this, cultivation according to the type of plant is possible by controlling the amount of light in dark or bright conditions according to the type of plant.

In the plant seedling and cultivation apparatus, the culture solution providing unit 300 may be configured according to the number of the germination and seedling rooms 100 and/or the cultivation rooms 200, and the first seedling tray 160 ) and/or may be configured according to the number of the second seedling tray 240 . However, this is only an example, and is not limited thereto.

The culture solution providing unit 300 may be driven on and off, and the culture solution may be injected into the first seedling tray 160 through the culture solution supply hose. In addition, the culture solution providing unit 300 may be driven in an on-off manner, and may be a method of spraying the culture solution to the root zone of the plant planted in the planting hole in the second seedling tray 240 . The culture solution providing unit 300 includes a switch for injecting the culture solution into the first seedling tray 160 and a switch for injecting the culture solution into the second seedling tray 240 so that they can be driven separately. The method of spraying the culture solution to the second seedling tray 240 may be a method of spraying the culture solution in the form of very small particles using a high-pressure pump. Through the method of spraying the culture solution in the form of particles, moisture is provided, and since the rhizome of the plant is not submerged in the culture solution, a large amount of oxygen can also be supplied. By supplying abundant oxygen to the rhizome of the plant, it is possible to suppress the growth of mold and fungi in the rhizome of the plant. Hydroponics in the form of spraying the culture medium is more efficient than the hydroponic cultivation methods such as drip irrigation hydroponics, intermittent flow hydroponics, and wick type hydroponics, as it consumes less culture medium and water. However, this is only an example, and is not limited thereto.

The culture solution providing unit 300 may be an injection type, may be a low pressure injection type, may be a high pressure injection type. In addition, in the case of the injection type, it may be injected at a low pressure or a high pressure according to a user's setting. However, this is only an example, and is not limited thereto.

The culture solution providing unit 300 may include a timer. The timer may set a time for which the culture solution providing unit 300 sprays the culture solution to the root zone of the plant according to a user's setting. However, this is only an example, and is not limited thereto.

The culture solution providing unit 300 may provide the culture solution through a solenoid valve. According to the user's signal, it is possible to adjust the injection amount of the culture medium through the remote control through the solenoid valve. However, this is only an example, and is not limited thereto.

The lower end of the culture chamber 200 is inclined, and the culture solution is excessively injected into the first seedling tray 160 from the culture solution providing unit 300 and sent into the culture room 200 through the drainage pipe, and the second seedling tray. The culture solution sprayed to the root zone of the plant at 240 and dropped to the bottom of the cultivation chamber 200 is collected by the culture solution recovery unit 400 . The culture solution collected in the culture solution recovery unit 400 moves to the culture solution providing unit 300, and the first seedling tray 160 and the second seedling tray 240 in the culture solution providing unit 300 again. It is sprayed into the root zone of the plant.

In the above, the configuration of the plant seedling and cultivation apparatus according to an embodiment of the present invention was examined. Hereinafter, a plant seedling and cultivation method using the plant seedling and cultivation apparatus according to an embodiment of the present invention will be described in detail.

Referring to FIG. 4 , in the method for germination and seeding of plants using the seedling and cultivation apparatus of plants, first, in step S110 , the seeds of plants are planted in the first seedling tray 160 in the germination and seedling room 100 .

Next, in step S120 , the first light source unit 130 provides light to the first seedling tray 160 to germinate and seed the plants.

Thereafter, in step S130 , the culture solution providing unit 300 provides the culture solution in such a way that the culture solution is injected into the first seedling tray 160 .

Next, in step S140 , the culture solution injected in excess into the first seedling tray 160 is recovered to the culture solution recovery unit 400 through a drainage device and sent to the culture solution providing unit 300 .

Then, in step S150, the culture solution providing unit 300 provides the culture solution by injecting the culture solution back into the first seedling tray 160 again.

When the switch of the culture solution providing unit 300 is turned on, steps S240 and S250 are repeated, and when the switch of the culture solution providing unit 300 is turned off, it ends.

Referring to FIG. 5 , in the method of growing plants using the seedling and cultivation apparatus, first, in step S210 , plants are planted in the second seedling tray 240 in the cultivation room 200 .

Next, in step S220 , the second light source 220 provides light to the second seedling tray 240 .

Then, in step S230, depending on whether the switch is on or off, the culture solution providing unit 300 provides the culture solution in a way that sprays the culture solution to the root area of the plant planted in the second seedling tray 240 .

Next, in step S240 , after being sprayed to the root zone of the plant, the culture solution that has fallen to the bottom of the cultivation chamber 200 is recovered to the culture solution recovery unit 400 and sent to the culture solution provider 300 .

Then, in step S250, the culture solution providing unit 300 provides the culture solution in such a way that the culture solution is sprayed back to the root area of the plant planted in the second seedling tray 240 .

When the switch of the culture solution providing unit 300 is turned on, steps S240 and S250 are repeated, and when the switch of the culture solution providing unit 300 is turned off, it ends.

In the method of spraying the culture solution, it may be to adjust the injection amount of the culture solution through a solenoid valve according to a user's signal. However, this is only an example and is not limited thereto.

In the method of spraying the culture solution, the mounting unit 260 on which the second seedling tray 240 is mounted may be moved up and down through the transfer unit 280 according to the user's manipulation. Through this, the distance between the root zone of the plant and the culture solution providing unit 300 can be adjusted, and accordingly, the amount of the culture solution in contact with the root zone of the plant can be adjusted.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains will be able to make various modifications and variations without departing from the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but to explain the technical idea, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

100: germination nursery
130: first light source unit
160: first seedling tray
200: cultivation room
220: second light source unit
240: second seedling tray
260: mounting part
280: transfer unit
300: culture medium providing unit
320: first seedling tray handle
400: culture solution recovery unit

Claims (14)

In the drawer-type structure, a single or multiple layers are configured, and the first seedling tray for germinating and seeding plants, the first seedling tray handle, a culture solution supply hose for supplying a culture solution, a drainage device for draining the culture solution, and the drainage device A germination nursery room equipped with a drainage pipe for transporting the culture medium to be drained;
a cultivation room disposed adjacent to the germination and seedling room, constituting a single or a plurality of layers, and having a second seedling tray on which plants are planted and a mounting unit to which the second seedling tray can be mounted;
a first light source unit providing light to the germination and seedling room and a second light source unit providing light to the cultivation room;
a culture solution providing unit for providing the culture solution to at least one of the root region of the first seedling tray and the second seedling tray; and
A plant seedling and cultivation apparatus comprising a; a culture solution recovery unit for recovering the remaining culture solution and sending it to the culture solution providing unit. The method of claim 1,
The culture medium supply hose is a plant seedling and cultivation device having a flexible structure in a corrugated form. The method of claim 2,
The drainage device is a plant seedling and cultivation device including a water level control device. The method of claim 1,
The culture solution providing unit provides the culture solution by injecting the culture solution to the first seedling tray, and spraying the culture solution to the root zone of the plant planted in the second seedling tray Seedling of a plant that provides the culture solution and cultivation devices. The method of claim 4,
The culture solution providing unit includes a timer that can adjust at least one of a time for injecting the culture solution into the first seedling tray or a time for spraying the root zone of a plant planted in the second seedling tray. . The method of claim 5,
The culture medium providing unit seedling and cultivation apparatus of a plant including a solenoid valve. The method of claim 1,
The cultivation room is a plant seedling and cultivation apparatus including a transfer unit for moving the mounting part up and down on which the second seedling tray is mounted. The method of claim 1,
At least one of the first light source unit and the second light source unit is an LED for seedling and cultivation of plants. The method of claim 8,
The first light source unit maintains the dark condition for a predetermined period in the germination and seedling room, and the second light source unit maintains the dark condition for a predetermined period in the cultivation room. The method of claim 9,
The first light source unit controls the amount of light under bright conditions in the germination and seedling room, and the second light source unit controls the amount of light under bright conditions in the cultivation room. In the plant germination and seedling method using the plant seedling and cultivation apparatus,
planting the seeds of the plants in a first seedling tray in the germination nursery;
providing light to the first seedling tray by a first light source unit;
providing the culture solution in such a way that the culture solution providing unit injects the culture solution into the first seedling tray according to whether the switch is on or off;
The culture solution injected into the first seedling tray in excess is recovered to the culture solution recovery unit through a drainage device and sent to the culture solution providing unit; and
Germination and seeding method of a plant comprising the step of providing the culture solution by injecting the culture solution back to the first seedling tray from the culture solution providing unit. In the plant seedling and cultivation method of a plant using a cultivation apparatus,
planting plants in a second seedling tray in the cultivation room disposed adjacent to the germination nursery;
providing light to the second seedling tray by a second light source unit;
providing the culture solution in such a way that the culture solution providing unit sprays the culture solution to the root zone of the plant planted in the second seedling tray according to whether the switch is on or off;
After being sprayed to the root zone of the plant, the culture solution falling to the bottom of the cultivation room is recovered to the culture solution recovery section and sent to the culture solution provider; and
A method of growing a plant comprising the step of providing the culture solution by spraying the culture solution to the rhizome of the plant planted on the second seedling tray in the culture solution providing unit again. The method of claim 12,
The step of providing the culture solution further comprises the step of adjusting the injection amount of the culture solution through a solenoid valve according to a user's signal. The method of claim 13,
The step of providing the culture solution further comprises moving up and down the mounting part on which the second seedling tray is mounted according to a user's manipulation.

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