A cultivation device for the transition of soil-grown plants to hydroponics

Abstract

The utility model provides a kind of cultivation device for soil culture plant hydroponics transition, including top open box, detachably connected box cover, atomization induction component and jet flow oxygenation component.Box cover and box form culture space, box cover is equipped with through-hole and guide portion, for fixing plant and guiding root growth.Atomization induction component is located at the bottom of culture space, and mist drop is generated by atomization part of metal diaphragm and piezoelectric ceramic sheet, and high humidity induction of root system is realized by cooperating liquid absorbing cotton swab.Jet flow oxygenation component uses venturi jet pipe, and nutrient solution circulation is driven by pump body, and oxygen is increased and root secretion is removed using venturi effect.The device is controlled by two-stage environment synergistically, solves the problem of anoxic stress and secondary metabolite accumulation when soil culture plant is transplanted to hydroponics, and is suitable for scientific research and home horticulture scene.

Description

Technical Field

[0001] This utility model relates to the field of hydroponic transition technology for plants, specifically to a cultivation device for the hydroponic transition of soil-grown plants. Background Technology

[0002] With the development of modern agricultural technology, soilless cultivation has become a core direction for industrialized plant production due to its environmental friendliness and resource efficiency. Hydroponics, as an important branch of soilless cultivation, provides a standardized experimental platform for plant physiological research by precisely controlling the composition of the nutrient solution. However, when soil-grown plants are directly transplanted into a hydroponic system, the root system needs to adapt to the drastic change from the gaseous phase to the liquid phase environment in the soil pores within a short period. This process presents two major bottlenecks: First, the sudden environmental stress, where the liquid water film on the root surface causes a sharp drop in oxygen diffusion rate, leading to programmed cell death in the xylem vessels due to hypoxia. Experimental data shows that when the dissolved oxygen concentration in the roots of woody plants (such as eucalyptus) is below 2 mg / L within 48 hours after transplantation, the incidence of root rot can reach over 40%. Second, the accumulation of secondary metabolites; phenolic substances released by damaged roots (such as tannins with a concentration exceeding 0.3 mmol / L) inhibit the differentiation of new root primordia, creating a vicious cycle. Traditional solutions employ intermittent aeration, but the dissolved oxygen increase can only fluctuate between 1.2 and 1.8 mg / L, which cannot meet the needs of high oxygen-consuming plants.

[0003] The existing technology still has some problems: (1) Single environmental control type: only atomized humidification is used to promote rooting of tissue culture seedlings, but no dissolved oxygen compensation mechanism is established, resulting in oxygen deficiency (DO < 1.5 mg / L) during hydroponics; (2) Passive oxygenation type: devices that rely on fluid dynamics design (such as U-tube circulation system) can increase dissolved oxygen to 2.3 mg / L, but the energy conversion efficiency is low (> 8 W / L) and cannot remove root exudates; (3) In scientific research application scenarios, simple devices (such as air stone oxygenation) cannot meet the needs of high oxygen-consuming plants, while complex systems (such as gas-liquid mixing reactors) are too large (> 0.5 m 3 The complexity of operation (requiring 3-5 days of professional training) results in extremely low adoption rates.

[0004] The core deficiency of existing technologies lies in the lack of: (1) a dynamic matching mechanism between oxygen transport dynamics at the gas / liquid interface and root development stages; and (2) a synergistic regulatory pathway between secondary metabolite removal and dissolved oxygen supply. Therefore, how to develop a cultivation device that can achieve continuous transition of humidity-dissolved oxygen gradient, low-energy consumption and high-efficiency oxygenation, and modular and low-cost design, and break through the bottleneck of hydroponic transplantation technology for soil-grown plants, is an urgent problem to be solved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a cultivation device for the transition from soil-grown to hydroponic cultivation. By integrating a two-stage control logic of atomization induction components and jet aeration components, it achieves a seamless transition of root development from aerobic acclimatization to aquatic adaptation, thereby shortening the hydroponic acclimatization cycle of plants.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A cultivation device for hydroponic transition of soil-grown plants includes: a box with an open top; a box cover detachably connected to the box, the box and the box cover being configured such that their interiors form a cultivation space for hydroponic transition of soil-grown plants, the cultivation space containing a cultivation liquid, the box cover having multiple through holes for receiving soil-grown plants, wherein the through holes are provided with guide portions for guiding plant root growth; an atomizing induction component disposed at the bottom of the cultivation space, comprising an atomizing part and a liquid-absorbing part arranged vertically, the outlet end of the atomizing part facing the guide portion; and a jet aeration component disposed at the lower part of the cultivation space, comprising a horizontally arranged Venturi jet tube, the upper part of the Venturi jet tube having an air inlet, the liquid inlet end of the Venturi jet tube being fixed to the side wall of the box, and the mixed-flow spray end of the Venturi jet tube extending into the cultivation space and located below the liquid level.

[0008] According to one example, the guide includes a planting basket disposed within the through hole and a cylinder fitted outside the planting basket, the cylinder extending into the cultivation space and located below the liquid level, the circumferential wall of the cylinder being provided with a plurality of ventilation holes.

[0009] According to one example, the through-hole is also covered with a glass cover, and the top of the glass cover is provided with a vent.

[0010] According to one example, the atomizing unit includes a metal diaphragm and a piezoelectric ceramic sheet pressed onto the metal diaphragm. A positive terminal is provided on one side of the piezoelectric ceramic sheet, and a negative terminal is provided on one side of the metal diaphragm. The metal diaphragm is provided with a plurality of micropores for converting the culture liquid into atomized gas.

[0011] According to one example, the liquid absorption section includes a tube fixed to the lower part of the metal diaphragm, the upper and lower ends of the tube being open and containing a liquid-absorbing cotton swab, the lower end of the tube being fixed to the bottom of the culture space and located below the liquid level.

[0012] According to one example, the air inlet is equipped with an air intake pipe that extends upward to the top of the cover. The top of the air intake pipe is open and has multiple support rods arranged circumferentially, with one end of each of the multiple support rods connected to a protective cover.

[0013] According to one example, the inlet end of the Venturi jet is connected to the pump body via a pipeline.

[0014] According to one example, the outer wall of the housing is also provided with a drain port, which is connected to the pump body via a pipeline.

[0015] According to one example, a lifting assembly is provided between the box body and the box lid, the lifting assembly including a base and a slider slidably disposed on the base, and a flexible membrane is also provided between the box body and the box lid.

[0016] According to one example, the base has a first socket along its vertical direction, and the slider has a second socket along its vertical direction that mates with the first socket, the first socket being connected to the second socket by a pin.

[0017] This utility model has the following advantages:

[0018] This invention's cultivation device integrates a dual-stage control logic of an atomization induction component and a jet aeration component, achieving a seamless transition in root development from aerobic acclimatization to aquatic adaptation, thus shortening the hydroponic acclimatization cycle. The atomization induction component uses high-frequency vibration of a metal diaphragm and piezoelectric ceramic plate to convert nutrient solution into droplets, forming a saturated humidity layer on the root surface, simulating the humidity environment of soil cultivation and reducing hydroponic stress on plants. The jet aeration component utilizes a Venturi jet tube to mix and spray air with nutrient solution, increasing dissolved oxygen in the water. Simultaneously, it uses fluid shear force to remove secondary metabolites from the roots, increasing the hydroponic acclimatization survival rate of eucalyptus plants from 58% to over 96%, and shortening the rooting cycle of cuttings by 40%.

[0019] The cost of a single cultivation device of this invention is controlled within 100 yuan. The box body uses a standard turnover box costing 20 yuan. Core components such as the atomizing unit (2 yuan x 2), driver (7 yuan), planting basket (2 yuan), and pump body (10 yuan) have extremely low BOM costs. At the same time, the reuse rate of key components exceeds 80%, greatly reducing long-term operating costs. In terms of maintenance, since the device has no high-energy-consuming components and complex circuits, daily maintenance only requires periodic replacement of the atomizing plate and water-absorbing cotton swabs. Moreover, the power of the atomizing plate and water pump is less than 5W, and the electricity cost generated during long-term operation is almost negligible, effectively reducing the burden of use.

[0020] The cultivation device of this invention has an extremely simple operation process, requiring only three steps: "transplanting → atomization induction → jet aeration circulating hydroponics." No complex parameter adjustments are needed, allowing even novice researchers or students participating in teaching practice to quickly get started. Its open-type chamber allows for direct observation of plant root growth and facilitates real-time monitoring. Furthermore, the device operates at a noise level below 30 decibels, creating a quiet operating environment; the enclosed chamber effectively reduces nutrient solution evaporation, lowers the risk of contamination, and keeps the surrounding environment clean, making it suitable for various scenarios such as laboratories and homes.

[0021] This utility model's cultivation device has a wide range of applications. In the education field, the device, with its low cost and ease of operation, can become an ideal tool for botany practice courses in primary and secondary schools and scientific research training projects for university students. In home gardening, it is suitable for urban residents to carry out low-cost hydroponic cultivation of vegetables and flowers on their balconies. In the production field, it can be applied to the factory production of forest tree seedlings, the transition of tissue culture seedlings to hydroponic environments, and the propagation of various plants by cuttings, demonstrating strong versatility and market potential. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the cultivation device of this utility model for the transition from soil-grown to hydroponic cultivation.

[0023] Figure 2 This is a three-dimensional sectional view of the cultivation device of this utility model.

[0024] Figure 3 This is a three-dimensional structural diagram of the cultivation device of this utility model.

[0025] Figure 4 This is a three-dimensional structural diagram of the guide part of this utility model.

[0026] Figure 5 This is an exploded perspective view of the guide section of this utility model.

[0027] Figure 6 This is a three-dimensional structural diagram of the atomization induction component of this utility model.

[0028] Figure 7 This is a three-dimensional exploded view of the atomization induction component of this utility model.

[0029] Figure 8 This is a three-dimensional structural diagram of the jet oxygenation component of this utility model.

[0030] Figure 9 This is a three-dimensional structural schematic diagram of another embodiment of the cultivation device of this utility model.

[0031] Wherein, A is the cultivation space, 1 is the box body, 2 is the box cover, 201 is the through hole, 202 is the guide part, 202a is the planting basket, 202b is the cylinder body, 202b1 is the ventilation hole, 202c is the glass cover, 202c1 is the air vent, 3 is the atomization induction component, 301 is the atomization part, 301a is the metal diaphragm, 301a1 is the negative terminal, 301a2 is the micropore, 301b is the piezoelectric ceramic sheet, 301b1 is the positive terminal, 301... c is a flexible protective sleeve, 302 is a liquid absorption part, 302a is a tube body, 302a1 is a connecting port, 302b is a liquid absorption cotton swab, 4 is a jet oxygenation component, 401 is a Venturi jet tube, 401a is an air inlet, 401b is a liquid inlet, 401c is a mixed flow jet nozzle, 402 is an air inlet pipe, 402a is a support rod, 402b is a protective cover, 5 is a lifting component, 501 is a base, 501a is a first insertion hole, 502 is a slider, and 502a is a second insertion hole. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1 and Figure 2 The illustration shows an embodiment of a cultivation device for the hydroponic transition of soil-grown plants. The device mainly includes a box body 1 and a detachably connected box cover 2. The box body 1 and the box cover 2 are configured such that their interiors form a cultivation space A for the hydroponic transition of soil-grown plants. The cultivation space A is equipped with an atomization induction component 3 and a jet aeration component 4. By integrating the dual-stage control logic of the atomization induction component 3 and the jet aeration component 4, a seamless transition of root development from atomization to aquatic adaptation is achieved, shortening the hydroponic acclimatization cycle of plants.

[0034] The box 1 is a rectangular structure with an open top. It is a gray modified polypropylene turnover box with dimensions of 300mm (L) × 200mm (W) × 150mm (H). The cultivation space A contains the culture liquid, including but not limited to Hogrange nutrient solution, modified Kimura nutrient solution, and Yamazaki nutrient solution. The box cover 2 has multiple through holes 201 for receiving soil-grown plants. Each through hole 201 has a guide part 202 to guide the plant root growth. Specifically, the through holes 201 are evenly distributed along the length of the box cover 2. Each through hole 201 is a circular planting hole with a diameter of 24mm, and the distance between two planting holes is not less than 30mm. The number of through holes 201 can be 4, 6, 8, etc. A cable passage with a diameter of 16mm is also provided at the center line of the width direction of the box cover 2 to facilitate the wiring connection of the atomization induction component 3 and the jet oxygenation component 4.

[0035] Reference Figure 4 and Figure 5The guide section 202 includes a planting basket 202a disposed within a through hole 201 and a cylindrical body 202b fitted over the planting basket 202a. The planting basket 202a is made of PP material, with a top opening of φ35mm, an inner diameter of 23.5mm, a bottom opening of φ20.45mm, and a height of 35mm. The circumferential wall of the planting basket 202a has a porous structure, and it is fitted with a φ10mm water-retaining sponge to fix the plant. The diameter of the ventilation holes 202b1 is adapted to different sizes of planting baskets 202a, and can be extended to 20-40mm. The cylindrical body 202b extends into the cultivation space A and is located below the liquid level. The circumferential wall of the cylindrical body 202b is provided with multiple ventilation holes 202b1, forming a gap channel with the outside of the planting basket 202a to guide plant roots through and grow along a predetermined path, preventing adjacent roots from entangled. A glass cover 202c is also provided on the through hole 201. The top of the glass cover 202c is provided with a vent 202c1 for exhausting gas, which can maintain a high humidity environment during the atomization induction stage and allow atomized gas to enter, thereby improving the survival rate of transplanted plants.

[0036] Reference Figure 2 , 6 7. The atomization induction component 3 is disposed at the bottom of the cultivation space A and is used to induce plant rooting and humidify the plant roots above the liquid level. It includes an atomizing part 301 and a liquid absorption part 302 arranged vertically, with the outlet end of the atomizing part 301 facing the guide part 202.

[0037] Reference Figure 6 and Figure 7The atomizing unit 301 is an ultrasonic atomizing structure, comprising a metal diaphragm 301a and a piezoelectric ceramic sheet 301b pressed onto the metal diaphragm 301a. A positive terminal 301b1 is located on one side of the piezoelectric ceramic sheet 301b, and a negative terminal 301a1 is located on one side of the metal diaphragm 301a. The piezoelectric ceramic sheet 301b and the metal diaphragm 301a are connected to an external power source via wires, forming a complete electrical circuit. The metal diaphragm 301a has multiple micropores 301a2 for converting the culture liquid into atomized gas. The edge of the metal diaphragm 301a has an annular protrusion, forming an elastic seal with the piezoelectric ceramic sheet 301b to prevent liquid leakage. During operation, the atomizing unit 301 activates a high-frequency atomization mode, and the piezoelectric ceramic sheet 301b generates radial expansion and contraction vibration under a high-frequency voltage excitation of 108kHz ± 5%. The vibration is transmitted to the metal diaphragm 301a through the coupling interface, causing the liquid within the micropores 301a2 on the metal diaphragm 301a to form a standing wave. The liquid at the wave crest is rapidly broken, forming tiny atomized gas particles with a diameter <10μm. This atomization process operates with a power range of 0.6-3W at a resonant frequency of 108kHz±5%, and can rapidly form a saturated humidity aerosol layer (RH≥95%) in the microenvironment of plant roots to simulate the humidity conditions of soil-grown substrates, thereby effectively promoting the differentiation of new root primordia. In addition, a flexible protective sleeve 301c made of silicone is also fitted over the metal diaphragm 301a and the piezoelectric ceramic sheet 301b.

[0038] The liquid absorption section 302 is located at the lower part of the atomizing section 301. It includes a tube 302a fixed to the lower part of the metal diaphragm 301a. The upper and lower ends of the tube 302a are open, and a 100mm × φ10mm absorbent cotton swab 302b is contained within it. The lower end of the tube 302a is fixed to the bottom of the culture space A and is below the liquid level. The absorbent cotton swab 302b can continuously and stably deliver the culture liquid to the surface of the metal diaphragm 301a, providing a sufficient liquid source for the atomization process and ensuring the continuous working performance of the atomization induction component 3. In addition, a connecting port 302a1 is provided on the lower side wall of the tube 302a to guide the nutrient liquid to flow into the tube, facilitating absorption by the absorbent cotton swab 302b.

[0039] In an embodiment not shown, the atomization induction assembly 3 further includes a positioning part. The liquid suction part 302 is detachably connected to the positioning part, which is rotatably connected to the bottom of the housing 1. The positioning part is used to adjust the angle of the atomizing gas ejected by the atomizing part 301, thereby achieving flexible control of the spray angle of the atomizing part 301. The positioning part includes a sleeve with an open top for receiving the liquid suction part 302. The liquid suction part 302 can be adjusted in position along the axial direction of the positioning part. The bottom of the sleeve is hinged to the bottom of the housing 1. The hinge can be a spherical bearing hinge, a double-axis hinge, or a universal joint hinge, etc.

[0040] Reference Figure 2 and Figure 8 The jet aeration component 4 is located at the lower part of the cultivation space A, used to oxygenate the water while removing secondary metabolites. It includes a horizontally arranged Venturi jet tube 401. An air inlet 401a is formed at the upper part of the Venturi jet tube 401 to receive an air source, allowing air to enter the Venturi jet tube 401. A liquid inlet 401b of the Venturi jet tube 401 is fixed to the side wall of the housing 1 to receive nutrient solution, allowing the nutrient solution to enter the Venturi jet tube 401 and mix with the air source. A mixing nozzle 401c of the Venturi jet tube 401 extends horizontally into the cultivation space A and is located below the liquid level, used to spray a gas-liquid mixture. The liquid level divides the cultivation space A into an upper and lower atomizing zone and a hydroponic zone, arranged in layers within a single housing 1, reducing the equipment's footprint and making it suitable for operation in small laboratory spaces.

[0041] The air inlet 401a is equipped with an air inlet pipe 402, which extends upward to the top of the cover 2. The top of the air inlet pipe 402 is open and multiple support rods 402a are arranged around it. An air inlet hole is formed between two adjacent support rods 402a to allow air to enter the air inlet pipe 402. One end of each of the multiple support rods 402a is connected to a protective cover 402b to prevent external environmental impurities from entering the Venturi jet pipe 401.

[0042] In an embodiment not shown, the inlet 401b of the Venturi jet tube 401 is connected to the pump body via a pipeline. The outer wall of the housing 1 has a drain port, which is also connected to the pump body via a pipeline, forming a complete water circulation pipeline. This improves dissolved oxygen efficiency while simultaneously removing root exudates. The pump body is a miniature water pump with dimensions of 40mm × 35mm × 50mm, a power of 1W, a voltage of 5V, a flow rate Q = 150L / h, and a head H = 0.8m. By driving the nutrient solution flow, and in conjunction with the Venturi effect of the Venturi jet tube 401, it continuously oxygenates the culture space and removes root exudates. Its power cord is a 152cm long 5V USB power cable, connected to an external power source via a cable through-hole in the housing cover 2. The pump body can realize the internal / external dual circulation mode of nutrient solution: when the pump body is set outside the tank 1, an external circulation system can be built, which facilitates centralized treatment and replacement of nutrient solution; when the pump body is placed inside the tank 1 and below the liquid level, an internal circulation system is formed, reducing external pipeline connections, saving space and reducing the risk of liquid leakage. Both modes can be flexibly switched.

[0043] Reference Figure 9This paper illustrates another embodiment of a cultivation device for the transition from soil-grown to hydroponic cultivation of plants. The main feature is a lifting assembly 5 installed between the box body 1 and the lid 2. This assembly can adjust the height of the cultivation space A and the relative position of the guide section 202 and the liquid level according to the plant root growth, achieving dynamic switching between the atomization induction and hydroponic transition stages. The lifting assembly 5 includes a base 501 and a slider 502 slidably disposed on the base 501. A flexible film is also provided between the box body 1 and the lid 2. One end of the flexible film is fitted onto the circumferential wall of the top of the box body 1, and the other end is fitted onto the circumferential wall of the lid 2. Through elastic expansion and contraction, the film ensures the airtightness of the cultivation space A, preventing leakage of atomized gas or intrusion of external contaminants. The base 501 has a first insertion hole 501a along its vertical direction, and the slider 502 has a second insertion hole 502a that mates with the first insertion hole 501a along its vertical direction. The first insertion hole 501a is connected to the second insertion hole 502a by a pin. When the height of the box cover 2 needs to be adjusted, the pin can be pulled out to push the slider 502 to slide along the base 501. After adjustment, the pin can be reinserted to fix it. The operation is simple and the positioning is stable, effectively meeting the environmental space needs of plants at different growth stages.

[0044] Effect verification

[0045] To verify the effectiveness of this device, hydroponic experiments with eucalyptus seedlings and cutting experiments with *Eucalyptus globulus* were conducted. In the hydroponic experiment with eucalyptus seedlings, a 300mm×200mm×150mm box (1) was selected, equipped with two atomization induction components (3) and one jet aeration component (4). Twelve 30-day-old, 7cm tall soil-grown eucalyptus seedlings, after root cleaning and pruning to 2-3cm, were transplanted into the box (1). Hoagland's nutrient solution was circulated and cultured, with the solution changed every 3-5 days. Observations showed that the new root development rate was 100% within 3 days, and by 7 days, the roots had extended along the guide section (202) below the liquid surface, ultimately achieving a 100% survival rate, an increase of 42.7% compared to the 58.3% survival rate of the traditional hydroponic method.

[0046] Eight eucalyptus seedlings, successfully acclimatized to this device, with a height of 8 cm and a hydroponic period of at least 7 days, were randomly divided into an experimental group and a control group. The experimental group (4 seedlings) continued to be cultured using this device (containing two atomization induction components 3 and one jet aeration component 4); the control group (4 seedlings) were transferred to a traditional air pump aeration hydroponic system equipped only with air stones for aeration and dissolved oxygen (DO) maintained at 3.5±0.2 mg / L. Both groups used the same Hoagland nutrient solution formula and were cultured for 7 days at 25±1℃ with a 12h / d light cycle. After the experiment, root morphological parameters such as taproot length and the number of secondary roots were measured, and root physiological health was assessed by the root tip browning rate. The results showed that the average taproot length of the experimental group reached 18.8 cm, an increase of 42.4% compared to the 13.2 cm of the control group. The number of secondary roots in the experimental group was significantly greater than that in the control group, and the root tip browning rate in the control group exceeded 40%, while no visible browning was observed in the experimental group. This indicates that the device, through the dual-stage synergistic regulation of the atomization induction component 3 and the jet oxygenation component 4, can continuously ensure a high-oxygen microenvironment for roots during long-term hydroponics, effectively inhibit the accumulation of secondary metabolites, significantly promote root growth, and delay senescence.

[0047] In addition, a 300mm×200mm×150mm box 1 of the same specifications was used, equipped with four atomization induction components 3 and one jet oxygenation component 4 to conduct a cutting experiment of Eucalyptus globulus. Fifteen semi-lignified Eucalyptus globulus cuttings with a length of 10cm were selected, disinfected, and fixed in planting basket 202a, and circulated with Hogrange nutrient solution. Experimental data showed that 87% of the cuttings formed callus tissue at 8 days, and 53.3% of the cuttings successfully rooted at 12 days. Compared with the traditional hydroponic control group without root differentiation at the same time, this device showed a significant advantage in promoting the rooting of cuttings.

[0048] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention should be considered equivalent substitutions and are included within the protection scope of the present invention. The embodiments described in this disclosure are intended as non-limiting examples, and other embodiments may take various and alternative forms. Furthermore, the drawings are not necessarily to scale and may present simplified expressions of various features of the present disclosure, including, for example, specific dimensions, orientations, positions, and shapes. Details associated with such features will be determined in part by the intended application and usage environment of the described embodiments.

[0049] The detailed description and accompanying drawings are supporting and descriptive of this teaching, but the scope of this teaching is defined only by the claims. While the best mode and some other embodiments for carrying out this teaching have been described in detail, various alternative designs and embodiments exist for practicing the teaching as defined in the appended claims. Furthermore, this disclosure expressly includes combinations and sub-combinations of the elements and features set forth above and below.

Claims

1. A cultivation device for transitioning soil-grown plants to hydroponics, characterized in that, include: An open-top box; A box cover is detachably connected to the box body. The box body and the box cover are configured such that their interiors form a cultivation space for the transition from soil-grown to hydroponic cultivation. The cultivation space contains a cultivation liquid. The box cover is provided with multiple through holes for receiving soil-grown plants, wherein the through holes are provided with guide parts for guiding the growth of plant roots. Atomization induction component, wherein the atomization induction component is disposed at the bottom of the culture space, and includes an atomizing part and a liquid absorption part arranged vertically, wherein the outlet end of the atomizing part faces the guide part; A jet aeration assembly is disposed in the lower part of the culture space. It includes a horizontally arranged Venturi jet tube, an air inlet is formed at the upper part of the Venturi jet tube, the liquid inlet end of the Venturi jet tube is fixed to the side wall of the box, and the mixed flow jet end of the Venturi jet tube extends into the culture space and is located below the liquid level.

2. The cultivation device according to claim 1, characterized in that, The guide portion includes a planting basket disposed within the through hole and a cylinder fitted outside the planting basket. The cylinder extends into the cultivation space and is located below the liquid level. The circumferential wall of the cylinder is provided with multiple ventilation holes.

3. The cultivation device according to claim 2, characterized in that, The through hole is also covered with a glass cover, and the top of the glass cover is provided with a vent hole.

4. The cultivation device according to claim 1, characterized in that, The atomizing unit includes a metal diaphragm and a piezoelectric ceramic sheet pressed onto the metal diaphragm. A positive terminal is provided on one side of the piezoelectric ceramic sheet, and a negative terminal is provided on one side of the metal diaphragm. The metal diaphragm has multiple micropores for converting the culture liquid into atomized gas.

5. The cultivation device according to claim 4, characterized in that, The liquid absorption section includes a tube fixed to the lower part of the metal diaphragm. The upper and lower ends of the tube are open and contain liquid-absorbing cotton swabs. The lower end of the tube is fixed to the bottom of the culture space and is below the liquid level.

6. The cultivation device according to claim 1, characterized in that, The air inlet is equipped with an air inlet pipe that extends upward to the top of the box cover. The top of the air inlet pipe is open and has multiple support rods arranged around its circumference. One end of each of the multiple support rods is connected to a protective cover.

7. The cultivation device according to claim 1, characterized in that, The inlet end of the Venturi jet tube is connected to the pump body via a pipeline.

8. The cultivation device according to claim 7, characterized in that, The outer wall of the housing is also provided with a drain port, which is connected to the pump body through a pipeline.

9. The cultivation device according to claim 1, characterized in that, A lifting assembly is provided between the box body and the box cover. The lifting assembly includes a base and a slider that is slidably disposed on the base. A flexible membrane is also provided between the box body and the box cover.

10. The cultivation apparatus according to claim 9, characterized in that, The base has a first insertion hole along its vertical direction, and the slider has a second insertion hole along its vertical direction that mates with the first insertion hole. The first insertion hole is connected to the second insertion hole by a pin.

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