Tilting film shallow tillage mechanism and isolated water cultivation method using the same

Abstract

This invention provides an inclined film shallow tillage mechanism and an isolated hydroponic method using the inclined film shallow tillage mechanism. The inclined film shallow tillage mechanism is installed in a hydroponic planting device and includes several carrier trays, cultivation mats, and a plurality of cultivation blocks. The carrier trays are installed on a frame of the hydroponic planting device and are inclined at a predetermined angle relative to the ground. A plurality of receiving grooves are recessed on the carrier trays. The cultivation mats are placed on the top side of the carrier trays, and a plurality of cultivation holes are opened on each of the receiving grooves. Each cultivation block is detachably plugged and placed in each cultivation hole to support vegetable seedlings. A liquid delivery unit of the hydroponic planting device is connected to both ends of the carrier trays and can deliver nutrient solution to the carrier trays, so that the cultivation mats can float under the buoyancy of the nutrient solution. The nutrient solution can flow naturally along the inclined carrier trays into each receiving groove. The flow of the nutrient solution between the carrier trays and the cultivation mats is in the form of a thin film.

Description

Technical Field

[0001] This invention relates to hydroponic planting equipment, and more specifically to an inclined film shallow tillage mechanism and an isolated hydroponic method using the inclined film shallow tillage mechanism. Background Technology

[0002] Note that hydroponics, also known as soilless cultivation or nutrient solution cultivation, mainly utilizes appropriate facilities and nutrient solutions to supply nutrients to vegetable seedlings for absorption and growth. It is known that equipment using hydroponics technology is typically installed in greenhouses, and there are numerous related patents, which will not be detailed here. Its structure generally includes a frame and a liquid delivery unit and a lighting unit mounted on the frame. The frame has multiple shelves for placing multiple water tanks, which hold the nutrient solution. The liquid delivery unit connects to each water tank to circulate the nutrient solution. The lighting unit is located above the water tanks to provide the light needed for vegetable growth. Each water tank has a floating cultivation tray with multiple openings for inserting a cultivation block. The cultivation block holds the sterilized and germinated vegetable seedlings, whose roots extend into the nutrient solution to absorb nutrients for growth. It is known that hydroponic cultivation equipment can control growth conditions such as temperature, humidity and light, allowing vegetable seedlings to grow in a suitable environment. The harvested vegetables are pesticide-free and have a refreshing taste without any earthy flavor. Therefore, in recent years, they have become very popular among people who pay attention to healthy eating.

[0003] Since most hydroponic cultivation equipment uses a single tank to hold the nutrient solution for the roots of many vegetable seedlings to absorb nutrients simultaneously, it not only uses a large amount of water, but also the growing environment of each vegetable seedling is interconnected, making it easy for the growth of the seedlings to affect each other. If a few vegetable seedlings are not completely sterilized or disinfected before germination, or if environmental factors cause bacteria or viruses to grow in the seedlings, cultivation blocks, or nutrient solution, the bacteria or viruses will spread to the roots of all vegetable seedlings with the nutrient solution, thereby affecting the growth of all vegetable seedlings and the harvest and quality of the vegetables. Summary of the Invention

[0004] The main objective of this invention is to provide an inclined film shallow tillage mechanism and an isolated hydroponic method using the inclined film shallow tillage mechanism. This method can significantly save water and nutrient solution usage, and it does not have the disadvantage of known vegetable hydroponic equipment where the growth of vegetable seedlings can easily affect each other. It can produce a large number of high-quality vegetables and has great practical value.

[0005] To achieve the aforementioned objectives, the present invention provides an inclined film shallow cultivation mechanism, installed in a hydroponic planting device. The hydroponic planting device includes a frame and a liquid delivery unit and a lighting unit installed on the frame. The inclined film shallow cultivation mechanism is installed on the frame and connected to the liquid delivery unit for planting vegetables. The liquid delivery unit delivers nutrient solution to the inclined film shallow cultivation mechanism. The lighting unit is installed on the top side of the inclined film shallow cultivation mechanism to provide the light required for vegetable growth. The inclined film shallow cultivation mechanism includes several carrier trays installed on the first layer of the frame and inclined at a predetermined angle relative to the ground. A plurality of receiving grooves are recessed on the trays. The liquid delivery unit is connected to both ends of the carrier trays. Several cultivation pads, made of a material with a density lower than that of the nutrient solution, are placed on the top side of the carrier trays. A plurality of cultivation holes are opened on each of the receiving grooves. A plurality of cultivation blocks are detachably placed in each of the cultivation holes to support vegetable seedlings.

[0006] In this way, the liquid delivery unit connects to both ends of the carrier tray and delivers the culture medium to the carrier tray, so that the cultivation pad can float due to the buoyancy of the culture medium. The culture medium flows along the inclined carrier tray and naturally flows into each receiving tank. The roots of the vegetable seedlings on each cultivation block extend into the receiving tank. The flow of the culture medium between the carrier tray and the cultivation pad is in the form of a thin film. After the culture medium delivery stops, the carrier tray descends and adheres to the cultivation pad.

[0007] Preferably, the angle of inclination of the carrier plate relative to the ground is less than 10 degrees.

[0008] Preferably, the angle at which the carrier plate is tilted relative to the ground is between 1 and 5 degrees.

[0009] Preferably, the frame has several shelves that are tilted relative to the ground, and the tray is rectangular.

[0010] Preferably, the carrier tray includes a rectangular base plate, a plurality of side plates disposed around the periphery of the base plate, each receiving groove disposed on the base plate, the cultivation pad being placed on the base plate and located between the side plates, and the liquid delivery unit passing through the side plates at both ends of the carrier tray and communicating with the top side of the base plate.

[0011] Preferably, the rack is provided with a number of height adjustment devices at the higher end of the shelf, which can adjust the height of one end of the shelf to change the angle of inclination of the tray relative to the ground.

[0012] Preferably, each of the containers is large enough to hold an appropriate amount of culture medium and the root volume of various types of vegetables when they have grown to the point where they can be harvested.

[0013] Furthermore, the present invention provides an isolated hydroponic method, which utilizes the aforementioned inclined film shallow cultivation mechanism. The carrier plate is set at a predetermined angle relative to the ground, and the liquid delivery unit is connected to both ends of the carrier plate. The cultivation mat is then placed on the top side of the carrier plate, allowing the culture solution output by the liquid delivery unit to flow between the carrier plate and the cultivation mat. This causes the cultivation mat to float due to the buoyancy of the culture solution, allowing the culture solution to continuously flow along the top side of the carrier plate and into each of the carrier plate's receiving slots. Once each receiving slot is full of culture solution, the culture solution overflows. After a predetermined time, the liquid delivery unit stops outputting culture solution, and the carrier plate descends to adhere to the cultivation mat.

[0014] Preferably, the rack of the machine is tilted at a predetermined angle relative to the ground, and the tray is then fixed to the rack.

[0015] Preferably, the predetermined time refers to the time required for each containment tank of the carrier to be filled with culture medium.

[0016] The beneficial effects of this invention are as follows:

[0017] This invention provides an inclined film shallow tillage mechanism and an isolated hydroponic method using the inclined film shallow tillage mechanism. When the liquid delivery unit outputs nutrient solution through its delivery pipe, the nutrient solution is delivered to the top side of the base plate. The nutrient solution then flows between the carrier tray and the cultivation mat, causing the cultivation mat to float due to the buoyancy of the nutrient solution. The nutrient solution then flows along the top side of the inclined carrier tray. During this flow, the nutrient solution naturally flows into each of the receiving troughs, allowing the roots of the vegetable seedlings extending into each receiving trough on each cultivation block to be immersed in the nutrient solution. When the nutrient solution fills each receiving trough, it overflows. The overflowing nutrient solution flows into the recovery pipe and is circulated back to the delivery pipe by the liquid delivery unit for re-output, ensuring that all receiving troughs are reliably filled with nutrient solution. Once all receiving troughs are full, the liquid delivery unit stops operating and delivering nutrient solution. The carrier tray, no longer subject to the buoyancy of the nutrient solution, descends and covers the cultivation mat, ensuring that each receiving trough is only connected to the cultivation blocks above it. It can significantly save on water and nutrient solution usage, and it does not have the disadvantage of known hydroponic vegetable equipment where the growth of vegetable seedlings can easily affect each other, thus enabling the cultivation of large quantities of high-quality vegetables. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention and a shelf.

[0019] Figure 2 This is a top view of the carrier disk in a preferred embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the carrier tray, cultivation mat, and various cultivation blocks in a preferred embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the operation of a preferred embodiment of the present invention, showing the state in which the culture medium causes the cultivation pad to float and flow into each receiving tank.

[0022] Figure Labels

[0023] 10: Inclined film shallow cultivation mechanism; 1: Shelf; 12: Carrier tray; 14: Cultivation mat; 16: Cultivation block; 22: Bottom plate; 24: Side plate; 26: Receiving trough; 3: Conveying pipe; 4: Recycling pipe; 28: Cultivation hole. Detailed Implementation

[0024] Based on years of experience in hydroponic vegetable cultivation and related research and development, the inventor has invented the "Inclined Film Shallow Tillage Mechanism and Isolation Hydroponic Method Using the Inclined Film Shallow Tillage Mechanism", which can solve the aforementioned shortcomings of known hydroponic cultivation equipment.

[0025] The following are some preferred embodiments of the present invention, described in further detail with reference to the accompanying drawings:

[0026] First, please refer to Figures 1-3 As shown, a preferred embodiment of the present invention, an inclined film shallow tillage mechanism 10, is installed in a hydroponic planting device. The hydroponic planting device includes a frame and mechanisms such as a liquid conveying unit, a lighting unit, a temperature control unit, and a control unit installed on the frame. The inclined film shallow tillage mechanism 10 is used for planting vegetables. A first-layer frame 1 is installed on the frame and connected to the liquid conveying unit. The liquid conveying unit is a circulating supply device that delivers nutrient solution to the inclined film shallow tillage mechanism 10 and collects it. It includes components such as a water storage tank and a water pump. The lighting unit is installed on the inclined film shallow tillage mechanism 10. The top side of the shallow-cultivation film mechanism 10 provides light for vegetable growth. The temperature control unit controls the temperature of the greenhouse where the hydroponic planting equipment is located. This control unit is connected to the liquid delivery unit, the light supply unit, and the temperature control unit to control each unit to operate according to preset conditions. The aforementioned frame, liquid delivery unit, light supply unit, and control unit are known structures for hydroponic vegetable equipment (not shown in the figure). The nutrient composition of the culture solution is also known technology. The detailed structure and operation of each mechanism and the detailed composition of the culture solution will not be described here. The feature of this invention is:

[0027] The shelf 1 is tilted relative to the ground at a predetermined angle θ, which is less than 10 degrees, preferably 1 to 5 degrees. The tilted film shallow cultivation mechanism 10 includes a carrier tray 12, a cultivation mat 14 and a plurality of cultivation blocks 16.

[0028] The tray 12, fixed to the shelf 1 and tilted relative to the ground, is generally rectangular in shape and includes a rectangular base plate 22 and a plurality of side plates 24 disposed around the periphery of the base plate 22. The top side of the base plate 22 has a plurality of non-communicating receiving grooves 26 in a concave arc shape. A delivery pipe 3 and a recovery pipe 4 of the liquid delivery unit pass through the side plates 24 at both ends of the tray 12 and connect to the top side of the base plate 22, such that the delivery pipe 3 is located at the higher end of the tray 12 relative to the ground, and the recovery pipe 4 is located at the lower end of the tray 12 relative to the ground. Furthermore, the tray 12 can be made of polystyrene, but is not limited thereto.

[0029] The cultivation mat 14 is made of a material with a density lower than that of the culture medium, such as polystyrene, but not limited thereto, and is attached to the base plate 22 and located between the side plates 24. The cultivation mat 14 has a plurality of cultivation holes 28 corresponding to each receiving groove 26.

[0030] Each cultivation block 16 is made of fibrous or mesh material, such as plant fibers like loofah sponge or synthetic fibers like sponge or foam, but is not limited thereto. Each block is removably placed in its respective cultivation hole 28 to support the vegetable seedlings. Specifically, after the vegetable seeds are disinfected, sterilized, and germinated into seedlings, they are placed on each cultivation block 16. Then, each cultivation block 16 is inserted into its respective cultivation hole 28, allowing the roots of the seedlings to gradually grow and extend into their respective receiving slots 26.

[0031] In addition, the bottom side of the base plate 22 and each side plate 24 of the carrier plate 12 can be covered with black cloth or plastic sheet for light shielding, which is known technology and is not shown in the figure.

[0032] Therefore, the features and effects of the inclined film shallow tillage mechanism 10 of the present invention are as follows:

[0033] When the culture medium is output from the delivery pipe 3 of the liquid delivery unit, the culture medium is delivered to the top side of the base plate 22, whereby it flows between the carrier tray 12 and the cultivation pad 14, causing the cultivation pad 14 to float due to the buoyancy of the culture medium (floating by approximately 0.5 cm to 1 cm). Figure 4As shown, in this way, the culture medium can flow along the top side of the inclined carrier plate 12. During the flow, the culture medium can naturally flow into each of the receiving tanks 26, so that the roots of the vegetable seedlings extending into each receiving tank 26 on each of the cultivation blocks 16 can be immersed in the culture medium, thereby absorbing the nutrients of the culture medium to grow. When the culture medium fills each receiving tank 26, it will overflow. The overflowing culture medium will flow into the recovery pipe 4 and be circulated by the liquid delivery unit to the delivery pipe 3 for output again, so that all receiving tanks 26 can be reliably filled with culture medium. When all receiving tanks 26 are filled with culture medium, the liquid delivery unit will stop operating and delivering culture medium. The carrier plate 12 will descend and cover the cultivation pad 14 without being buoyed by the culture medium, so that each receiving tank 26 is only connected to each of the cultivation blocks 16 above. As the vegetable seedlings continue to grow, the roots of the vegetable seedlings bend and wrap around each receiving tank 26.

[0034] Furthermore, different types of vegetables grow at different rates. Therefore, the root growth of different types of vegetable seedlings in each of the receiving tanks 26 also varies (the roots of faster-growing seedlings occupy more space in the receiving tank 26). This results in different rates at which the culture medium fills each receiving tank 26. The rate at which the liquid delivery unit outputs the culture medium can be adjusted according to the different types of vegetables, causing the floating height of the cultivation mat 14 to vary. A faster output rate results in a higher floating height for the cultivation mat 14, while a slower output rate results in a lower floating height, with the cultivation mat 14 floating between approximately 0.5 cm and 1 cm. Secondly, after each receiving tank 26 is filled with culture medium, the liquid delivery unit stops outputting culture medium. When the liquid delivery unit resumes outputting culture medium (e.g., operating once or several times a day) depends on the rate at which the roots of the vegetable seedlings in each receiving tank 26 absorb the culture medium. This can be determined experimentally and is known technology, so it will not be elaborated here.

[0035] Furthermore, the capacity of each container 26 is only required to accommodate the culture medium and the root volume of various types of vegetables when they have grown to the point where they can be harvested. This can be seen from experiments. The present invention does not limit the capacity of each container 26. For example, according to relevant experiments and research, most vegetables absorb about 100 cc of culture medium per day. Assuming that the maximum root volume of vegetables when they have grown to the point where they can be harvested is 200 cubic centimeters, then the capacity of each container 26 can be set to about 300 cubic centimeters, but it is not limited.

[0036] As can be seen from the above, during the process of transporting the culture solution, the inclined film shallow cultivation mechanism 10 utilizes the inclined structural design to allow the culture solution to flow naturally between the carrier plate 12 and the cultivation pad 14. The flow of the culture solution is generally in the form of a thin film. Furthermore, the inclined film shallow cultivation mechanism 10 only uses a plurality of receiving tanks 26 to hold the culture solution and the roots of the vegetable seedlings on each cultivation block 16, without the need for the large water tanks of known vegetable hydroponic equipment. Therefore, compared with known vegetable hydroponic equipment, the present invention can significantly save the amount of water and culture solution used. Of course, the liquid transport unit can recover and recycle the culture solution that overflows from each small receiving tank 26.

[0037] Furthermore, when the liquid delivery unit is not delivering culture medium, the carrier plate 12 covers the cultivation pad 14, so that each of the receiving tanks 26 is only connected to each of the cultivation blocks 16 above. The light from above cannot directly shine on the culture medium in each of the receiving tanks 26, which can greatly prevent the culture medium from growing algae or bacteria and deteriorating, and maintain the stability of the nutrients in the culture medium.

[0038] Secondly, by using the structure where each of the container tanks 26 contains the roots of the vegetable seedlings without interconnection, the growth environment of each vegetable seedling is isolated. Therefore, even if a few vegetable seedlings are not completely disinfected or sterilized, or if algae or fungi grow in the culture solution of a few cultivation blocks 16 or container tanks 26, affecting the growth of the vegetable seedlings, it will not affect the growth of other healthy and non-toxic vegetable seedlings. Compared with the non-isolated structure in known vegetable hydroponic equipment where all vegetable seedlings are supplied with culture solution from the same water tank, this inclined film shallow cultivation mechanism 10 can obviously grow a large number of high-quality vegetables without the disadvantage of vegetable seedlings in known vegetable hydroponic equipment easily affecting each other's growth.

[0039] Furthermore, in the tilted film shallow tillage mechanism 10 of the present invention, the tilt angle of the shelf 1 relative to the ground is less than 10 degrees, so that the tilt angle of the carrier plate 12 relative to the ground is also less than 10 degrees. This is because although a large tilt angle of the shelf 1 or the carrier plate 12 will make the flow rate of the culture medium faster, thereby quickly filling each of the receiving tanks 26, a fast flow rate of the culture medium is not the requirement of the present invention. A large tilt angle of the shelf 1 or the carrier plate 12 will actually reduce the culture medium capacity of each receiving tank 26 (if the tilt angle is too large, under the condition that the horizontal plane of the culture medium is always parallel to the ground, the opening of each receiving tank 26 will be partially higher than the horizontal plane of the culture medium, thus reducing the volume of each receiving tank 26). After repeated testing by the inventors, the preferred tilt angle is 1 degree to 5 degrees, which best meets the requirement of the present invention to transport the culture medium by using a tilted structural design.

[0040] Furthermore, the tilt angle of the shelf 1 of the inclined film shallow tillage mechanism 10 relative to the ground can also be configured as an adjustable structure. This is achieved by providing a height adjustment device (not shown in the figure) between one end (high end) of the shelf 1 and the frame, while the other end (low end) of the shelf 1 is pivotally mounted on the frame. This height adjustment device can be used to adjust the height of the high end of the shelf 1, thereby changing the tilt angle of the shelf 1 and the carrier tray 12 relative to the ground. The height adjustment device may include a vertically extending movable slot on the frame, a pin passing through the movable slot and inserted into the high end of the shelf 1, and a locking member that can lock the pin in the movable slot. Changing the position of the pin in the movable slot changes the height of the shelf 1 relative to the ground, and thus changes its tilt angle relative to the ground. Of course, the height adjustment device is not limited to the aforementioned type; it can also be a mechanism or device using a screw or other components for transmission, or pneumatic or hydraulic mechanisms or devices. As long as it can adjust the height of the high end of the shelf 1, it meets the requirements of this invention and falls within the technical scope of this invention.

[0041] It must be mentioned that the tilt of the tray 12 relative to the ground is affected by the shelf 1. Of course, the shelf 1 can also be set to be parallel to the ground, and the tray 12 can be set to be a structure in which the base plate 22 is tilted relative to the ground. Based on this, the culture medium can also flow at an angle between the tray 12 and the cultivation pad 14.

[0042] As can be seen from the above, the present invention also provides an isolated hydroponic method using the inclined film shallow tillage mechanism 10. First, the carrier tray 12 is set at a predetermined angle of inclination relative to the ground, and the shelf 1 of the machine frame is set at a predetermined angle of inclination relative to the ground. Then, the carrier tray 12 is fixed to the shelf, and the delivery pipe 3 and the recovery pipe 4 of the liquid delivery unit pass through the side plates 24 at both ends of the carrier tray 12 and connect to the top side of the bottom plate 22. Then, the cultivation mat 14 is placed on the top side of the bottom plate 22 of the carrier tray 12. Next, each cultivation block 16 with vegetable seedlings is inserted into each cultivation hole 28 of the cultivation mat 14. Then, the liquid delivery unit is operated to output the culture solution. The culture solution can flow to the top side of the bottom plate 22 and enter between the carrier plate 12 and the cultivation pad 14, so that the cultivation pad 14 can float due to the buoyancy of the culture solution. The culture solution can continuously flow at an angle along the top side of the carrier plate 12 and into each container 26, so that the culture solution gradually fills each container 26, allowing the roots of the vegetable seedlings to absorb nutrients and grow. Excess culture solution will be collected by the recovery pipe 4 and then circulated out of the liquid delivery unit through the delivery pipe 3. After an appropriate time, when each container 26 is full of culture solution, the liquid delivery unit stops outputting culture solution, causing the carrier plate 12 to descend and adhere to the cultivation pad 14.

[0043] The above description is only a few preferred embodiments of the present invention and is not intended to limit the present invention. Anyone skilled in the art can make some modifications, alterations and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A tilted film shallow tillage mechanism, installed in a hydroponic planting device, the hydroponic planting device comprising a frame and a liquid conveying unit and a lighting unit installed on the frame, the tilted film shallow tillage mechanism being installed on the frame and connected to the liquid conveying unit for planting vegetables, the liquid conveying unit conveying nutrient solution to the tilted film shallow tillage mechanism and collecting it, the lighting unit being installed on the top side of the tilted film shallow tillage mechanism to provide the light required for vegetable growth; characterized in that, The inclined film shallow tillage mechanism includes: Several trays are fixed to a single layer of the frame and tilted at a predetermined angle relative to the ground. Each tray has a plurality of recessed receiving slots, and the receiving slots are not connected. Several cultivation pads, made of a material with a density lower than that of the culture medium, are movably attached to the top side of the carrier tray, and each pad has a plurality of cultivation holes corresponding to the positions of the receiving slots; and Multiple cultivation blocks, each with a removable plug placed in its respective cultivation hole, support vegetable seedlings; In this way, the liquid delivery unit is connected to both ends of the carrier tray to deliver the culture medium to the carrier tray, so that the cultivation pad can float under the buoyancy of the culture medium. The culture medium flows along the inclined carrier tray and naturally flows into each receiving tank. The roots of the vegetable seedlings on each cultivation block extend into the receiving tank. The flow of the culture medium between the carrier tray and the cultivation pad is in the form of a thin film. After the culture medium is stopped, the carrier tray descends and adheres to the cultivation pad.

2. The inclined film shallow tillage mechanism as described in claim 1, characterized in that, The tray is tilted at an angle of less than 10 degrees relative to the ground.

3. The inclined film shallow tillage mechanism as described in claim 2, characterized in that, The carrier disk is tilted at an angle of 1 to 5 degrees relative to the ground.

4. The inclined film shallow tillage mechanism as described in claim 1, characterized in that, The frame has several shelves that are tilted to correspond to the ground, and the carrier is rectangular in shape.

5. The inclined film shallow tillage mechanism as described in claim 4, characterized in that, The carrier tray includes a rectangular base plate, a plurality of side plates disposed around the perimeter of the base plate, each receiving groove disposed on the base plate, the cultivation pad being placed on the base plate and located between the side plates, and the liquid delivery unit passing through the side plates at both ends of the carrier tray and communicating with the top side of the base plate.

6. The inclined film shallow tillage mechanism as described in claim 2, characterized in that, The rack is equipped with several height adjustment devices at the higher end of the shelf, which can adjust the height of one end of the shelf to change the angle of inclination of the tray relative to the ground.

7. The inclined film shallow tillage mechanism as described in claim 1, characterized in that, Each container is large enough to hold an appropriate amount of culture medium and the root volume of various vegetables when they have grown to the point where they can be harvested.

8. A method for isolated hydroponics, employing an inclined film shallow tillage mechanism as described in any one of claims 1, 4, or 6, characterized in that, The carrier tray is tilted at a predetermined angle relative to the ground, and the liquid delivery unit is connected to both ends of the carrier tray. The cultivation pad is then placed on top of the carrier tray. Next, the cultivation blocks containing vegetable seedlings are inserted into the cultivation holes of the cultivation pad, allowing the nutrient solution output by the liquid delivery unit to flow between the carrier tray and the cultivation pad. This causes the cultivation pad to float due to the buoyancy of the nutrient solution, allowing the nutrient solution to continuously flow along the top of the carrier tray and into the respective receiving slots of the carrier tray. This allows the roots of the vegetable seedlings in each receiving slot to absorb nutrients and grow. Once each receiving slot is full of nutrient solution, the nutrient solution will overflow. After a predetermined time, the liquid delivery unit stops outputting nutrient solution, and the carrier tray can then descend and adhere to the cultivation pad.

9. The isolated hydroponics method as described in claim 8, characterized in that, The rack of the machine is tilted at a predetermined angle relative to the ground, and the tray is then fixed to the rack.

10. The isolated hydroponics method as described in claim 8, characterized in that, The predetermined time refers to the time required for each compartment of the carrier tray to be filled with culture medium.

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