PLANT WATER CULTURE FRAME AND PLANT GROWTH ENVIRONMENT ENSURING SYSTEM

A plant water culture frame and a plant growth ensuring system are disclosed. The plant water culture frame includes a frame body provided with at least one water culture space layer; at least one culture tray provided in the water culture space and used for containing nutrient solution; a plant-fixed basket support component provided in the culture tray and supporting a plant-fixed basket to make it floating with the nutrient solution; and at least one plant-fixed basket provided on the plant-fixed basket support component. The embodiments of the present disclosure effectively avoid having the plant root system submerged when the liquid level of the nutrient solution is too high.

TECHNICAL FIELD

The present disclosure relates to the technical field of agriculture culture facilities, and in particular to a plant water culture frame and a plant growth environment ensuring system.

BACKGROUND

At present, most of vegetables are still cultured in soil. Due to less and less cultivated land area and more and more serious pollution, it has become a desire of the majority of people to eat pollutant-free vegetables. Many people began to culture vegetables in the balcony, but it is still very inconvenient to culture in soil since it occupies a large area and is difficult to guarantee adequate sunshine.

In the plant culture, soilless culture techniques are often used. Soilless culture is a modern seedling culture technique which uses light materials, such as peat, forest leaf mold, or expanded vermiculite, as a seedling culture substrate to fix plants so that plant root systems directly contact with nutrient solution, and which uses accurate mechanization seeding to form seedlings once. Selected seedling tray is divided into grids each carrying one seed and thus forming one seedling, and the substrate intertwines with the formed seedling′ root system that has a shape of a plug with big top and small bottom, which is generally called tray-soilless seedling culture.

Water culture is one of soilless cultures, which acclimatizes ordinary plants and flowers with modern biological engineering technology by physical, chemical, biological engineering means without use of natural soil. The plant root systems directly contact with the nutrient solution. Water culture separates the plant root systems from soil so that it can avoid a variety of soil-borne diseases, and there is no need for soil disinfection. Plants cultured in this method absorb nutrition directly from the solution. Thus, fibrous roots of a corresponding root system are developed, and main roots thereof are significantly degraded relative to the open field culture. The soil is replaced with the nutrient solution, with advantages of convenient care, cheap price, cleanness, healthy growth of flowers and leaves, and the like. Water culture mixes nutrient solution depending on requirements for plant growth, and makes it to be absorbed directly by plants. It has characteristics of cleanness and no-pests, and is widely accepted by urban residents.

SUMMARY

In a exemplary embodiment, a plant water culture frame is provided herein that has a frame body provided with at least one water culture space layer; at least one culture tray provided in the water culture space and used for containing nutrient solution; a plant-fixed basket support component provided in the culture tray and supporting a plant-fixed basket to make it floating with the nutrient solution; and at least one plant-fixed basket provided on the plant-fixed basket support component.

In certain exemplary embodiments, the plant-fixed basket support component comprises a plurality of through-holes, and the plant-fixed basket is placed on the plant-fixed basket support component by making the bottom of the plant-fixed basket passing through the through-hole.

In certain exemplary embodiments, an area of a cross-section of the plant-fixed basket support component is equal to that of an opening of the culture tray, and the plant-fixed basket support component is an opaque flat plate.

In certain exemplary embodiments, the plant-fixed basket support component is a foam plate.

In certain exemplary embodiments, the plant water culture frame further comprises a seed support component provided within the plant-fixed basket for obtaining moisture from the culture tray and supporting seeds placed within the seed support component so as to facilitate seed germination.

In certain exemplary embodiments, a seed clamped portion is provided in the seed support component, and the seed clamped portion is configured as a gap penetrating the seed support component.

In certain exemplary embodiments, a seed clamped portion is provided in the seed support component, and the seed clamped portion includes a recess disposed in the seed support component and a gap disposed at the recess and penetrating the seed support component.

In certain exemplary embodiments, a cross-section of the gap is cross-shaped.

In certain exemplary embodiments, the seed support component is a sponge block.

In certain exemplary embodiments, the plant-fixed basket comprises a neck portion and a waist portion, and the waist portion is a hollowed-out structure comprising a plurality of support posts.

In certain exemplary embodiments, a height ratio of the neck portion to the waist portion is between 1:2 and 1:3.

In certain exemplary embodiments, a height ratio of the plant-fixed basket to the plant-fixed basket support component is larger than 1.1:1 or less than 1.5:1.

In certain exemplary embodiments, a lighting fixture simulating a wavelength of sunlight is provided on the top of the water culture space.

In certain exemplary embodiments, the lighting fixture comprises a white LED light source coated with red phosphor.

In a second aspect, a plant growth ensuring system for use in the plant water culture frame as described above is provided herein that has a parameter sensor provided in the culture tray of the plant water culture frame for detecting a parameter of a plant growth environment in the culture tray; a growth environment regulation system for regulating the plant growth environment in the culture tray; and a controller, wherein the parameter sensor and the growth environment regulation system are connected to the controller, and the controller generates a growth environment adjustment command according to a growth environment parameter sensed by the parameter sensor so as to control the growth environment regulation system to adjust the plant growth environment in the culture tray.

In certain exemplary embodiments, the parameter sensor comprises one or more of a water temperature sensor, a water level sensor, an oxygen content sensor, a nutrient solution concentration sensor, a light sensor, and an image acquiring device.

In certain exemplary embodiments, the growth environment regulation system comprises an air supply system including an air supply pipe provided at the culture tray; an air pump is provided at the air supply pipe; and the controller is connected to the air pump for controlling the air pump to introduce oxygen into the culture tray.

In certain exemplary embodiments, the parameter sensor comprises an oxygen content sensor, and when the oxygen content sensor detects that the oxygen content in the nutrient solution within the culture tray is below a limit threshold, the air supply system would automatically turn on the air pump for oxygen supply.

In certain exemplary embodiments, the growth environment regulation system comprises a nutrient solution supply system including a nutrient solution supply pipe provided at the culture tray; a nutrient solution mixture supply device is provided at the nutrient solution supply pipe; and the controller is connected to the nutrient solution mixture supply device for controlling the nutrient solution mixture supply device to mix the nutrient solution and to supply the nutrient solution to the culture tray.

In certain exemplary embodiments, the plant growth ensuring system further comprises a communication unit; and wherein the controller is connected to a host computer through the communication unit; the controller receives parameter information of the parameter sensor and transmits the parameter information to the host computer through the communication unit; the host computer transmits to the controller through the communication unit a growth environment adjustment command generated according to the parameter information; and the controller receives the growth environment adjustment command of the host computer to control the growth environment regulation system to adjust the plant growth environment in the culture tray.

DETAILED DESCRIPTION OF EMBODIMENTS

In order to make objects, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in connection with the accompanying drawings in the embodiments of the present disclosure. It is apparent that the described embodiments are parts of, but not all of the embodiments of the present disclosure. All other embodiments derived by those ordinary skills in the art based on the embodiments of the present disclosure without undue experimentation fall within the protected scope of the present disclosure.

In the current water culture methods, plants are basically fixed in a plant loaded tray, which is not conducive to plant growth. Also, when a liquid level of nutrient solution in a water culture tray is too high, it is easy for the nutrient solution to overflow the plant loaded tray to submerge plant roots, thus affecting normal growth of the plants.

The technical problem to be solved by the present disclosure is how to guarantee that the nutrient solution does not submerge the plant roots when the liquid level of the nutrient solution in the water culture tray rises.

With respect to the drawbacks of the prior art, the present disclosure provides a plant water culture frame and a plant growth environment ensuring system, which can effectively ensure to keep height of the plant roots under the liquid level of the nutrient solution unchangeable when the liquid level of the nutrient solution in the water culture tray rises.

A plant water culture frame and a plant growth ensuring system provided in embodiments of the present disclosure provide a plant-fixed basket support component which supports a plant-fixed basket to make it floating with nutrient solution, so as to keep plant root systems always in contact with the nutrient solution as a height of a liquid level of the nutrient solution changes. This effectively avoids that, when the liquid level of the nutrient solution is too high, the plant root systems are submerged, thus affecting normal growth of plants.

A plant water culture frame as shown inFIG. 1is provided herein that comprising: a frame body1provided with at least one water culture space layer10(inFIG. 1, illustrated as four water culture space layers); at least one culture tray2provided in the water culture space10for containing nutrient solution; and a plant-fixed basket support component6that is provided in the culture tray2and supports a plant-fixed basket8as shown inFIG. 5to make it floating with the nutrient solution, as shown inFIGS. 3 and 4. As shown inFIGS. 3 and 4, at least one plant-fixed basket8is provided on the plant-fixed basket support component6. A seed support component9is provided within the plant-fixed basket8for obtaining moisture from the culture tray2and supporting a seed placed in the seed support component9, so as to facilitate seed germination. The plant water culture frame of the present disclosure will be illustrated in detail below.

As shown inFIGS. 1 and 2, in the present disclosure, the water culture space10in the frame body1can be provided according to actual situations. A corresponding number of water culture space layers10can be provided according to height of actual space. Four water culture space layers10are shown inFIG. 1and three water culture space layers10are shown inFIG. 2. One or more culture trays2may be selected in each water culture space layer10depending on the types and sizes of plants to be planted. As shown inFIGS. 3 and 4, a plant-fixed basket support component6is provided in the culture tray2and at least one plant-fixed basket8is provided in the plant-fixed basket support component6. By providing the plant-fixed basket support component6in the culture tray2, not only the plant-fixed basket8can be supported to float with the nutrient solution, but also it is to be ensured that a position of the plant-fixed basket in the culture tray2is relatively stable.

As shown inFIGS. 3 and 4, in some embodiments, in order to avoid nutrient solution of water culture produces cyanobacteria during culture of plants due to receipt of light and bacteria, an area of a cross section of the plant-fixed basket support component6is equal to that of an opening of the culture tray2and the plant-fixed basket support component6is an opaque flat plate. In this way, it is to be ensured that the nutrient solution in the culture tray is free from sunlight while the plant-fixed basket support component6freely floats up and down in the culture tray2. This prevents producing cyanobacteria or causing the nutrient solution to breed bacteria, and prevents reducing oxygen content and nutrient in the nutrient solution. In some embodiments, the plant-fixed basket support component6is a foam plate and a coated plate which are easy to process and has a low cost.

As shown inFIG. 3, the plant-fixed basket support component6includes a plurality of through-holes60, and the plant-fixed basket8is placed on the plant-fixed basket support component6by making the bottom of the plant-fixed basket8passing through the through-hole60. It is to be noted again that the through-holes60of the present disclosure may be differently provided depending on types of plants to be planted. When culturing small plants, a plurality of through-holes60may be provided in the plant-fixed basket support component6so as to place a plurality of plant-fixed baskets8accordingly. In general, one plant-fixed basket8is placed in each through-hole60. When culturing big plants, the number of through-holes60can be appropriately reduced and less plant-fixed baskets8can be provided relative to culturing small plants. As such, it is to be ensured that each plant can absorb sufficient nutrient solution while effectively ensuring light, thus effectively promoting growth of plants. The density of the through-holes60determines the density and daylighting of plants to be cultured. As shown inFIG. 4, in order to ensure that the plant-fixed basket support component6drives the plant-fixed basket8to float up and down while it floats up and down with change of the height of the nutrient solution, an aperture of the through-hole60is set in accordance with an outer diameter of the plant-fixed basket8and shape of the through-hole60matches with that of the planted-fixed basket8. This allows the plant-fixed basket8to be placed in the through-hole60exactly without any other remaining voids. The outer diameter of the plant-fixed basket8is slightly larger than the aperture of the through-hole60, so that when the plant-fixed basket8is mounted on the plant-fixed basket support component6, it can be exactly caught in the through-hole60so as to float up and down with the plant-fixed basket support component6. When spacing between the through-holes60in the plant-fixed basket support component6is smaller, plants cultured in each water culture space layer10is more. This is used in an early stage of seedling culture to effectively save space. When spacing between the through-holes60in the plant-fixed basket support component6is bigger, the number of plants cultured in each water culture space layer10is relatively reduced. This is used in later stages of plant growth to increase a culture space of plants so as to facilitate growth. In some embodiments, the spacing between the through-holes60in the plant-fixed basket support component6may be set in different sizes depending on types of plants, so as to use the space more efficiently. In addition, the plant growth stages can be further subdivided. Especially for plants with a longer growing season, different spacings between holes may be designed for different growing seasons to effectively use space for plant culture.

As shown inFIG. 4, in order to further ensure that cultured plants are not immersed in the nutrient solution excessively while the plant-fixed basket8floats up and down with the plant-fixed basket support component6, the height of the plant-fixed basket8is roughly equal to that of the plant-fixed basket support component6. In some embodiments, a height ratio of the plant-fixed basket8to the plant-fixed basket support component6is larger than 1.1:1. In some other embodiments, the height ratio of the plant-fixed basket8to the plant-fixed basket support component6is less than 1.5:1. In this way, not only seeds or plants placed in the plant-fixed basket8can contact the nutrient solution at its bottom so as to promote growth, but also the seeds or plants may be free from rotting caused by excessive immergence in the nutrient solution.

According to the present disclosure, the plant-fixed basket8is a hollow structure similar to a non-covered cup. Specifically, as shown inFIG. 5, the plant-fixed basket8includes a neck portion81, a waist portion82, and a bottom portion83. In some embodiments, a height ratio of the neck portion81to the waist portion82is 1:1. In some other embodiments, the height ratio of the neck portion81to the waist portion82is between 1:2 and 1:3. As shown inFIG. 5, the neck portion81is generally wider than the waist portion82and bottom portion83for contacting with the plant-fixed basket support component6so that the plant-fixed basket8is effectively fixed within the through-hole60in the plant-fixed basket support component6. In addition, as shown inFIG. 5, the waist portion82includes a non-hollowed-out solid part84as the neck portion81and a hollowed-out part85. The hollowed-out part85includes a plurality of support posts80which are separated from each other and collect the solid part84and the bottom portion83. The solid part84can increase strength of connection between the bottom portion and the neck portion and balance support forces of the different support posts80to some extent. Also, the hollowed-out part85including the plurality of support posts80can effectively ensure that plant root systems can extend out from the hollowed-out structure (i.e. gaps between the support posts80) into the nutrient solution in the culture tray2for growth. In some embodiments, the number of support posts80may be three, four, five, six, or more. By means of the above, the plant-fixed basket8can be effectively fixed within the through-hole60in the plant-fixed basket support component6while it is to be effectively ensured that plants sufficiently contact with the nutrient solution.

In some embodiments, a seed support component9is provided within the plant-fixed basket8that is generally located at the waist portion82of the plant-fixed basket8. As shown inFIGS. 6 to 9, a seed clamped portion90is provided in the seed support component9that is used for supporting and clamping a seed during an initial stage of seed culture so as to make it contacting with the nutrient solution to germinate. As shown inFIGS. 6 and 7, in order to enable the seed support component9adapting germination of seeds of various different types and sizes, the seed clamped portion90is configured as a gap penetrating the seed support component9as shown inFIG. 7. As shown inFIG. 6, a cross-section of the gap is set to a cross shape. In other embodiments, the cross-section of the gap may be set to a “−” shape. As another embodiment of the present disclosure, unlike the seed clamped portion as shown inFIGS. 6 and 7, the seed clamped portion90includes a recess91disposed in the seed support component9and a gap92disposed at the recess91and penetrating the seed support component9, as shown inFIGS. 8 and 9. As shown inFIG. 8, a cross-section of the gap92is of a cross shape. In this way, it can not only ensure germination of bigger seeds, but also is applicable to germination of smaller seeds. As shown inFIGS. 8 and 9, the upper half of the recess91is a cylinder shape and the lower half thereof is a hemisphere shape. The cross-section of the upper half of the recess91is configured as a circular shape, which is more conducive to germination and growth of plant seedlings. It will be appreciated by those skilled in the art that the recess91may be of any other suitable shape. Compared with the prior art, it is more convenient to place various kinds of seeds in the seed support component9provided by the embodiments of the present disclosure, and the seed support component9is more conducive to longitudinal growth of plant seedlings at the initial stage of seed germination. It is easier for a structural design of the gap penetrating the seed support component9to make seeds and roots growing longitudinally downwardly. In some embodiments of the present disclosure, the seed support component9is configured to be made of an easily hydrophil and breathable material. In some embodiments, the seed support component9is made of sponge blocks so as to save costs.

As shown inFIG. 1, in order to further ensure cultured plants may still grow normally in a poor light environment, at least one lighting fixture3that simulates a wavelength of sunlight is provided on the top of the water culture space10. In some embodiments, the lighting fixture3is a LED lamp that can simulate a sunlight exposure environment. In some embodiments, 12 LED lamps are provided in each water culture space layer. The lighting fixture3comprises a white LED light source coated with red phosphor.

Plant photosynthesis requires wavelengths in the range of 400 nm to 720 nm. Blue light at wavelengths of 400 nm to 520 nm and red light at wavelengths of 610 nm to 720 nm have the greatest effect on the plant photosynthesis. Traditional plant growth lamps only use red/blue LED mixed light, which lacks of other color spectrum and whose color is not suitable for human eyes' observation. The conventional LED light source contains more blue light and less red light. The present disclosure increases red phosphor in the white LED light source so that the red light and blue light is high in the spectrum of the light emitted from the LED light source according to the present disclosure, and the LED light source emits light in the whole spectrum. Thus, the white LED light source according to the present disclosure not only satisfies the demand for promoting plant photosynthesis, but also can be applicable to human eyes' observation to facilitate personnel operation.

To further embody superiority of the plant water culture frame provided by the present disclosure, the present disclosure also provides a plant growth ensuring system suitable for the above plant water culture frame. As shown inFIG. 10, the system11includes a controller111, a growth environment regulation system112, and a parameter sensor113. The growth environment regulation system112and the parameter sensor113are connected to the controller111. The parameter sensor113is disposed in the culture tray2as shown inFIG. 1. The parameter sensor113is used to detect parameters of the plant growth environment. The controller111generates a growth environment adjustment command according to the growth environment parameters sensed by the parameter sensor113to control the growth environment regulation system112to adjust the plant growth environment. The plant growth ensuring system provided by the present disclosure is illustrated in detail below.

In embodiments of the present disclosure, types and quantity of the parameter sensors113may be appropriately configured depending on types of the plants and plant growth parameters to be acquired. For example, if there is a need to detect a temperature of the nutrient solution, a water temperature sensor is provided in the culture tray2. If there is a need to detect a liquid level of the nutrient solution, a water level sensor is provided at a corresponding position of the culture tray2. If there is a need to detect oxygen content of the nutrient solution, an oxygen content sensor is provided in the culture tray2. If there is a need to detect composition concentration of the nutrient solution, a nutrient solution concentration sensor is provided in the culture tray2. If there is a need to detect light intensity of the plant growth environment, a light sensor is provided in the culture space. If there is a need to detect a growth period of plants, an image acquiring device is provided in the water culture space to obtain the growth period of the plants. In summary, various sensors that can sense the plant growth environment or plant growth conditions can be used in the present disclosure. By providing the above-mentioned various parameter sensors, growth status of plants can be obtained in real time, so as to determine whether indicators of the plant growth environment are achieved.

As shown inFIG. 10, the growth environment regulation system112includes an air supply system1121. The air supply system1121includes an air supply pipe15arranged to reach the culture trays2as shown inFIG. 1, which enters into the internal of the culture trays2through, for example, through-holes7in the culture tray2as shown inFIG. 3. An air pump13is provided at the air supply pipe15, and the controller111is connected to the air pump13for controlling the air pump13to introduce oxygen into the culture trays2. When an oxygen content sensor detects that oxygen content in the nutrient solution is below a limit threshold, the air supply system1121will automatically turn on the air pump13for oxygen supply. Although the air supply pipe15is only shown schematically inFIG. 1to reach parts of the culture trays2, it will be appreciated by those skilled in the art that the air supply pipe15may reach any or all of the culture trays2.

Further, as shown inFIG. 10, the growth environment regulation system112further includes a nutrient solution supply system1122. The nutrient solution supply system1122includes a nutrient solution supply pipe16arranged to reach the culture trays2as shown inFIG. 1, which enters into the internal of the culture trays2through, for example, through-holes7in the culture trays2as shown inFIG. 3. A nutrient solution mixture supply device14is provided at the nutrient solution supply pipe16. The controller111is connected to the nutrient solution mixture supply device14for controlling the nutrient solution mixture supply device14to mix the nutrient solution and to supply the nutrient solution to the culture trays2. Specifically, for example, when a water level sensor detects that the water level is lower than the minimum limit threshold, it is determined, based on values detected by the nutrient solution concentration sensor at this time, that the current nutrient solution lacks of compositions, and the nutrient solution supply system1122automatically mixes the required quantificational nutrient solution and transmit it to the culture trays2. The quantity meets that the water level after automatic addition of the nutrient solution is not higher than the highest limit threshold of the water level, so as to prevent the nutrient solution from overflowing the culture trays2. In some embodiments, data regarding nutrient solution mixture is different depending on different plant growth stages. Specifically, the current growth period of plants is determined based on images acquired by the image acquiring device. Further, through settings of the growth stages, the system automatically adds nutrient solution by mixing according to mixing data instruction in the current mode, to further adapt the plant growth demands at different stages. Nutrient solution storage buckets and pure water buckets can be provided on the plant water culture frame in which the nutrient solution is nutrient solution having a general formula. The nutrient solution storage buckets are classified as storage buckets containing nitrogen nutrient solution, storage buckets containing phosphorus potassium nutrient solution, and storage buckets containing potassium nutrient solution. Although the nutrient solution supply pipe16is only schematically shown inFIG. 1to reach parts of the culture trays2, it will be appreciated by those skilled in the art that the nutrient solution supply pipe16can reach any or all of the culture trays2. In addition, although the present application describes, by way of example, the air supply pipe15and the nutrient solution supply pipe16enters into the culture trays2through the through-holes7as shown inFIG. 3, it will be appreciated by those skilled in the art that, they may enter into the culture trays2through different through-holes or in any other ways.

The plant growth ensuring system11as shown inFIG. 10also includes a communication unit114. The controller111is connected to a host computer12through the communication unit114. The controller111receives parameter information of the parameter sensor113and transmits it to the host computer12through the communication unit114. The host computer12transmits to the controller111through the communication unit114a growth environment adjustment command generated based on the parameter information. The controller111receives the control command of the host computer12to control the growth environment regulation system112to adjust the plant growth environment. In the present disclosure, the controller111may be a Programmable Logic Controller (PLC). A lighting fixture3to provide plants with a light source can also be directly connected to the PLC, so as to achieve automatic turning on or off of the lighting fixture. As shown inFIG. 1, the controller111is disposed, for example, in a distribution box4at the bottom of the plant water culture frame1. In some embodiments, the air pump13and the nutrient solution mixture supply device14as shown inFIG. 1may also be located near the distribution box4.

In the embodiments of the present disclosure, the host computer12may include a touch display screen5as shown inFIG. 2, which may be disposed on the plant water culture frame1. Various growth parameters detected by the water temperature sensor, water level sensor, oxygen content sensor, nutrient solution concentration sensor can be transmitted to the touch screen display5for display. The user can use the touch display screen5to monitor whether the plant growth environment meets standards. In addition, the user can input control commands directly through the touch display screen5to transfer the commands to the controller so that the growth environment regulation system112adjusts the plant growth environment and ensures the plant growth environment within the culture tray2.

In another embodiment of the present disclosure, the host computer12may be a remote control terminal which may be simultaneously connected to a plurality of plant growth ensuring systems for centralized control. Control and monitoring of various plant growth ensuring systems are achieved by application software in the remote control terminal. In the present disclosure, the host computer12may be any of electronic devices having a control function such as a PC, an IPAD, a notebook computer, a smart watch, or the like.

Specifically, for example, the remote control terminal is a smart phone. Upon the smart phone is connected to the plant growth ensuring system, applications (APPs) of the smart phone are operated and controlled to monitor growth status of plants. Various parameter data detected by various parameter sensors can be displayed on the APP in real time. Thus the user can manually and wirelessly adjust devices of the plant water culture frame based on the displayed data, including adding nutrient solution and turning on or off the oxygen pump. Plants can be timely picked and managed by analyzing and determining images acquired by the image acquiring device and by the App remotely monitoring whether the plants have come to be mature.

In view of the above, the plant water culture frame and the plant growth ensuring system provided by embodiments of the present disclosure are provided with the plant-fixed basket support component which supports plant-fixed baskets to make them float with nutrient solution, so as to keep plant root systems always in contact with the nutrient solution while height of a liquid level of the nutrient solution changes. This effectively avoids that when the liquid level of the nutrient solution is too high, the plant root systems are submerged, thus affecting normal growth of plants. The plant water culture frame provided by embodiments of the present disclosure not only has high space utilization and aesthetic outlook, but also is conducive to effectively culture pollutant-free organic vegetables, which integrates decoration with utility.

It is to be noted that, in this document, relation terms such as first and second are used only to distinguish an entity or an operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or sequence between such entities or operations. Moreover, terms “comprising”, “including”, or any other variant thereof are intended to encompass a non-exclusive inclusion such that processes, methods, articles, or devices that include a series of elements include not only those elements but also other elements that are not explicitly listed, or elements that are inherent to such processes, methods, articles, or devices. In the absence of more restrictions, elements defined by the statement “including a . . . ” do not exclude presence of additional same elements in the processes, methods, articles, or devices that includes the elements. Orientation or position relationship indicated by terms “up”, “down”, etc. are ones shown in the drawings. This is only for the purpose of convenient description of the present disclosure and simplification of the description, and does not indicate or imply that devices or elements indicated must have specific orientation and be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present disclosure. Terms “installation”, “connection”, “connecting” should be understood in a broad sense unless otherwise explicitly specified and defined. For example, it may be a fixed connection, a detachable connection or an integral connection; may be a mechanical connection or an electrical connection; or may be a direct connection, an indirect connection through an intermediary, or internal connectivity between two elements. The specific meaning of the above terms in the present disclosure may be understood by those ordinary skilled in the art in light of specific circumstances.

A large number of specific details are set forth in the specification of the present disclosure. It is to be understood, however, that the embodiments of the present disclosure may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure understanding of this specification. Similarly, it is to be understood that, in the above description of the exemplary embodiments of the present disclosure, the features of the present disclosure are sometimes grouped together into a single embodiment, figure, or description thereof, in order to simplify the present disclosure and to assist in understanding of one or more of various disclosure aspects. However, methods of the present disclosure should not be construed to reflect the intent that the claimed disclosure requires more features than those exactly recited in each claim. More specifically, as reflected in the claims, the disclosure is less than all of the features of the previously disclosed single embodiment. Accordingly, the claims that follow specific embodiments are thus expressly incorporated into the specific embodiments wherein each claim per se acts as an individual embodiment of the present disclosure.

Finally, it should be noted that the above embodiments are merely used for illustrating technical solutions of the present disclosure and are not intended to be limiting thereof. While the present disclosure has been described in detail with reference to the foregoing embodiments, it will be understood by those ordinary skilled in the art that, it is still possible to modify the technical solutions recited in the foregoing embodiments or to equivalently replace some or all of the technical features therein, and that these modifications or replacements do not make essence of corresponding technical solutions depart from the scope of technical solutions of the embodiments of the present disclosure, and are encompassed within the scope of the claims and the specification of the present disclosure.