CN110959520A - Soilless culture solution preparation device and irrigation system - Google Patents
Soilless culture solution preparation device and irrigation system Download PDFInfo
- Publication number
- CN110959520A CN110959520A CN201911244830.8A CN201911244830A CN110959520A CN 110959520 A CN110959520 A CN 110959520A CN 201911244830 A CN201911244830 A CN 201911244830A CN 110959520 A CN110959520 A CN 110959520A
- Authority
- CN
- China
- Prior art keywords
- stock solution
- liquid
- soilless culture
- mixing barrel
- culture solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Abstract
The invention relates to the technical field of soilless culture and discloses a soilless culture solution preparation device and an irrigation system. The stoste case is located the mixing barrel top, and the lower extreme of bypass pipe is connected with the lower part of stoste case, and the stoste case passes through the bypass pipe and communicates with the external world, and the upper end port of bypass pipe is equipped with aperture adjustable air valve, and the air valve is higher than the roof of stoste case, and the bottom plate of stoste case is equipped with the catheter, and the stoste in the stoste case flows into the mixing barrel through the catheter. According to the soilless culture solution preparation device and the irrigation system, the control of the gravity flow rate of the stock solution is realized through the opening adjustment of the air valve, so that the preparation of the culture solution is conveniently carried out, the structure is simple, the operation is convenient, the speed and the efficiency are high, and the accurate and quick preparation of the culture solution can be realized.
Description
Technical Field
The invention relates to the technical field of soilless culture, in particular to a soilless culture solution preparation device and an irrigation system.
Background
The soilless culture technology mainly refers to a technical mode that natural soil is not used, a substrate is adopted for culture or only the substrate is adopted for seedling culture, and nutrient solution is adopted for corresponding irrigation culture after crops are rated. The soilless culture technology uses artificially created root-based environment to replace real soil environment, can effectively solve the problems of crop continuous cropping planting diseases and insect pests caused by corresponding salt accumulation and the like, and fully meets the requirements of crops on environmental conditions such as mineral nutrition, moisture, gas and the like. With the development of times and cities and the reduction of land areas, the current soilless culture technology is receiving more and more attention.
In soilless culture, the good growth and development of crops are closely related to the control of corresponding water and fertilizer. The root system capacity of the soilless culture crops is smaller than that of the soilless culture crops, so that the culture solution needs to be frequently irrigated when the soilless culture crops are used for cultivation. The components and flow of the culture solution required by the same crop in different growth periods are different, and how to scientifically control the preparation of the culture solution is important for the growth of the crop.
The culture solution is prepared through a Venturi fertilizer distributor in the current soilless culture technology, and the fertilizer suction amount of the Venturi fertilizer distributor is in direct proportion to the pressure of a liquid outlet. When the pressure of the liquid supply outlet fluctuates and changes, the fertilizer absorption rate fluctuates and changes along with the fluctuation, and the fertilizer absorption rate deviates from the set preparation target of the nutrient solution, thereby causing serious influence on the growth of corresponding crops.
Disclosure of Invention
The embodiment of the invention provides a soilless culture solution preparation device and an irrigation system, which are used for solving the problems that when culture solution is prepared through a Venturi fertilizer distributor, the fertilizer absorption rate fluctuates and changes along with the pressure fluctuation and the change of a liquid supply outlet, the fertilizer absorption rate deviates from the preparation target set by a nutrient solution, and the serious influence is caused on the growth of crops.
The embodiment of the invention provides a soilless culture solution preparation device which comprises a mixing barrel, a bypass pipe and a stock solution box arranged in a sealing mode, wherein the stock solution box is positioned above the mixing barrel, the lower end of the bypass pipe is connected with the lower part of the stock solution box, the stock solution box is communicated with the outside through the bypass pipe, an air valve with adjustable opening degree is arranged at the upper end port of the bypass pipe, the air valve is higher than the top plate of the stock solution box, a liquid guide pipe is arranged on the bottom plate of the stock solution box, and stock solution in the stock solution box flows into the mixing barrel through the liquid guide pipe.
Wherein, a liquid guide valve is arranged on the liquid guide pipe.
Wherein, the roof of stoste case is equipped with the inlet, the inlet is equipped with the feed liquor valve.
Wherein, the bypass pipe is a transparent straight pipe.
Wherein, there are a plurality of stoste casees.
Wherein, be equipped with pH sensor, EC sensor and level sensor in the blending tank.
The device further comprises a mains supply power supply module and an electric power storage power supply module.
The embodiment of the invention also provides a soilless culture irrigation system which comprises any one of the culture solution preparation devices.
The irrigation system further comprises a water supply pipeline and an irrigation liquid supply pipeline, the water outlet end of the water supply pipeline is connected with the upper portion of the mixing barrel, and the liquid inlet of the irrigation liquid supply pipeline is connected with the bottom of the mixing barrel.
Wherein, irrigation system still includes irrigates back the liquid pipeline, irrigate back the liquid outlet of liquid pipeline with the upper portion of blending tank is connected.
According to the soilless culture solution preparation device and the irrigation system provided by the embodiment of the invention, the culture solution preparation device realizes the control of the gravity flow velocity of the stock solution through the opening adjustment of the air valve, so that the preparation of the culture solution is conveniently carried out, the structure is simple, the operation is convenient, the speed and the efficiency are high, and the accurate and quick preparation of the culture solution can be realized; the irrigation system conveys the culture solution to the irrigation part of the crops by adopting the culture solution preparation device, so that the accurate, timed and quantitative irrigation of the cultivated crops is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a soilless culture solution preparing device provided by an embodiment of the invention;
FIG. 2 is a front view of a soilless culture solution preparing device according to another embodiment of the present invention;
FIG. 3 is a schematic structural view of a stock solution tank and a bypass pipe of a soilless culture solution preparing device provided by another embodiment of the invention;
in the figure: 1. a liquid inlet valve; 2. a stock solution tank; 3. a catheter; 4. a structural frame; 5. a mixing barrel; 6. an air valve; 7. a liquid level sensor; 8. a pH sensor; 9. an EC sensor; 10. a liquid crystal display; 11. a control cabinet; 12. irrigating a liquid return pipeline; 13. a water supply line; 14. an irrigation liquid supply conduit; 15. a liquid guide valve; 16. a bypass pipe.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
In addition, in the description of the present invention, "a plurality", and "a plurality" mean two or more unless otherwise specified.
As shown in figures 1-3, the embodiment of the invention provides a soilless culture solution preparation device, which comprises a mixing barrel 5, a bypass pipe 16 and a stock solution box 2 which is arranged in a closed manner. Stoste case 2 is located mixing drum 5 top, and the lower extreme of bypass pipe 16 is connected with stoste case 2's lower part, and stoste case 2 communicates with the external world through bypass pipe 16, and the upper end port of bypass pipe 16 is equipped with aperture adjustable air valve 6, and air valve 6 is higher than stoste case 2's roof, and the bottom plate of stoste case 2 is equipped with catheter 3, and the stoste in stoste case 2 flows into mixing drum 5 through catheter 3.
According to the soilless culture solution preparation device provided by the embodiment of the invention, the stock solution box 2 is used for storing and providing stock solution required for preparing the culture solution for the mixing barrel 5. The stock solution tank 2 is positioned above the mixing barrel 5, the lower end of the bypass pipe 16 is connected with the lower part of the stock solution tank 2, and the upper end of the bypass pipe 16 is provided with an air valve 6; when the air valve 6 is closed, the stock solution cannot flow out of the stock solution box 2 which is arranged in a closed way under the action of the external atmospheric pressure; when the air valve 6 is opened, the stock solution tank 2 is communicated with the outside atmosphere through the bypass pipe 16, and the stock solution flows to the mixing barrel 5 through the guide pipe in a self-flowing mode; the flow velocity of the stock solution flowing to the mixing barrel 5 through the draft tube can be adjusted by adjusting the opening of the air valve 6, the smaller the opening of the air valve 6 is, the slower the flow velocity of the stock solution passing through the liquid guide tube 3 is, and conversely, the larger the opening of the air valve 6 is, the faster the flow velocity of the stock solution passing through the liquid guide tube 3 is. Therefore, the soilless culture solution preparation device provided by the embodiment of the invention realizes the control of the gravity flow rate of the stock solution through the opening adjustment of the air valve 6, so that the preparation of the culture solution is conveniently carried out, the structure is simple, the operation is convenient, the speed and the efficiency are high, and the accurate and quick preparation of the culture solution can be realized.
In one embodiment, the liquid guide tube 3 is provided with a liquid guide valve 15. When the liquid guide valve 15 is closed, the stock solution cannot flow into the mixing barrel 5 from the stock solution tank 2; when the liquid guide valve 15 is opened, the inflow of the raw liquid from the raw liquid tank 2 into the mixing tub 5 can be controlled by controlling the opening degree of the air valve 6.
In one embodiment, a top plate of the stock solution tank 2 is provided with a liquid inlet, the liquid inlet is provided with a liquid inlet valve 1, and stock solution is supplemented to the stock solution tank 2 through the liquid inlet. When the stock solution needs to be supplemented in the stock solution tank 2, the air valve 6 and the liquid inlet valve 1 can be opened, and the stock solution flows into the stock solution tank 2 from the liquid inlet; after the stock solution is completely replenished, the liquid inlet valve 1 is closed, so that the inflow of the stock solution from the stock solution tank 2 to the mixing barrel 5 can be controlled by controlling the opening degree of the air valve 6.
In one embodiment, bypass conduit 16 is a straight transparent conduit. Because the lower extreme of bypass pipe 16 is linked together with stoste case 2 bottom, in dynamic balance's liquid level change in-process, the liquid level of bypass pipe 16 will keep the parallel and level with stoste case 2's liquid level, consequently, set up bypass pipe 16 into transparent straight tube, can show present stoste case 2 interior liquid level state, can conveniently, straight tube ground through bypass pipe 16 observe and master stoste case 2 interior liquid level circumstances.
In one embodiment, the stock solution tank 2 is provided in plurality. The multiple stock solution boxes 2 correspond to one mixing barrel 5, and each stock solution box 2 can be provided with an independent bypass pipe 16 and a liquid guide pipe 3, so that stock solutions can be simultaneously supplied to the mixing barrel 5 through the multiple independent stock solution boxes 2, and the culture solution preparation speed is improved; or different kinds of stock solution are filled in each independent stock solution box 2, and the content of each component of the culture solution is accurately controlled by respectively controlling the inflow of each stock solution box 2.
In one embodiment, a pH sensor 8, an EC sensor 9 and a liquid level sensor 7 are arranged in the mixing barrel 5. The pH sensor 8 and the EC sensor 9 can detect the pH EC of the culture solution in the mixing tub 5 and adjust the inflow of the stock solution into the stock solution tank 2, for example, by controlling the opening of the air valve 6 to control the flow rate of the stock solution into the mixing tub 5.
The soilless culture solution preparation device provided by the embodiment of the invention can comprise a structural frame 4 for installing the stock solution tank 2 and the mixing barrel 5, wherein the stock solution tank 2 is arranged above the structural frame 4, the upper end of the liquid guide pipe 3 is arranged on a bottom plate of the stock solution tank 2, the lower end of the liquid guide pipe 3 is communicated with the mixing barrel 5, and the opening and closing of the liquid guide pipe 3 are controlled by the liquid guide valve 15. The device can also comprise a liquid crystal display 10 and a control cabinet 11, wherein the liquid crystal display 10 is used for displaying the preparation state of the culture solution in real time, and the control cabinet 11 is connected with sensors such as a pH sensor 8, an EC sensor 9 and a liquid level sensor 7 and is used for acquiring the pH value, the EC value and the liquid level state of the culture solution and controlling the opening and closing of valves such as an air valve 6, a liquid guide valve 15 and a liquid inlet valve 1. For example, when the liquid level reaches the highest water level set by the mixing barrel 5, the water is stopped to be added, when the liquid level is lower than the lowest water level of the mixing barrel 5, the water is supplemented, and the corresponding stock solution is added while the water is supplemented to the mixing barrel 5; and simultaneously, detecting corresponding EC and pH values of the culture solution in real time, if the EC value or the pH value reaches a corresponding set target value, stopping adding the stock solution, and if not, continuously supplementing the corresponding stock solution to enable the stock solution to reach a correspondingly set culture solution target, so that the target setting of a user is met.
In a specific embodiment of the invention, the soilless culture solution preparation device further comprises a mains supply power supply module and an electric power storage power supply module. Because the stock solution of the device is supplemented in a self-flowing mode, the control is convenient and the power consumption is lower. The circuit design in the device case can adopt a power supply mode compatible with 220V commercial power and a 12V storage battery, and the 220V commercial power is adopted for supplying power at ordinary times. When the mains voltage is unstable or power is cut off, the device case can be automatically switched to a 12V storage battery for power supply, and therefore normal and stable operation of equipment can be guaranteed.
The embodiment of the invention also provides a soilless culture irrigation system which comprises the culture solution preparation device, the control of the gravity flow rate of the stock solution is realized through the opening adjustment of the air valve 6, so that the preparation of the culture solution is conveniently carried out, the structure is simple, the operation is convenient, the speed and the efficiency are high, and the accurate and quick preparation of the culture solution can be realized.
In one embodiment, the irrigation system further comprises a water supply pipeline 13 and an irrigation liquid supply pipeline 14, wherein the water outlet end of the water supply pipeline 13 is connected with the upper part of the mixing barrel 5, and the liquid inlet end of the irrigation liquid supply pipeline 14 is connected with the bottom of the mixing barrel 5. Supplying water through a water supply pipeline 13 and a mixing barrel 5, and mixing with the stock solution provided by the stock solution box 2 to form a required culture solution; the culture solution is conveyed to the irrigation part of the crops through the irrigation liquid supply pipeline 14, so that the accurate, timed and quantitative irrigation of the cultivated crops is realized.
Further, the irrigation system may further include an irrigation liquid return pipe 12, and a liquid outlet of the irrigation liquid return pipe 12 is connected to the upper portion of the mixing barrel 5. Culture solution which does not flow out of the irrigation liquid supply pipeline 14 is recycled and flows into the mixing barrel 5 through the irrigation liquid return pipeline 12, and the recycling of the culture solution waste liquid is realized.
According to the soilless culture solution preparation device and the irrigation system, the culture solution preparation device realizes the control of the gravity flow rate of the stock solution through the opening adjustment of the air valve 6, so that the preparation of the culture solution is conveniently carried out, the structure is simple, the operation is convenient, the speed and the efficiency are high, and the precise and rapid preparation of the culture solution can be realized; after the culture solution is prepared, the culture solution is conveyed to cultivated crops through an irrigation liquid supply pipeline 14 of a culture solution irrigation system, and an irrigation liquid return pipeline 12 recovers redundant culture solution water and fertilizer, so that the culture solution flows back to the mixing barrel 5 for re-preparation and can be conveyed to the irrigation liquid supply pipeline 14 again, and the recycling of the culture solution return liquid is realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The soilless culture solution preparation device is characterized by comprising a mixing barrel, a bypass pipe and a stock solution box which is arranged in a sealing mode, wherein the stock solution box is located above the mixing barrel, the lower end of the bypass pipe is connected with the lower portion of the stock solution box, the stock solution box is communicated with the outside through the bypass pipe, an air valve with an adjustable opening degree is arranged at an upper end port of the bypass pipe, the air valve is higher than a top plate of the stock solution box, a base plate of the stock solution box is provided with a liquid guide pipe, and stock solution in the stock solution box flows into the mixing barrel through the liquid guide pipe.
2. A soilless culture liquid preparing device according to claim 1 wherein the liquid guiding tube is provided with a liquid guiding valve.
3. The soilless culture solution preparing device of claim 1, wherein the top plate of the stock solution tank is provided with a liquid inlet, and the liquid inlet is provided with a liquid inlet valve.
4. A soilless culture liquid preparing device according to claim 1 wherein said bypass pipe is a transparent straight pipe.
5. A soilless culture solution preparing device according to claim 1 wherein there are a plurality of stock solution boxes.
6. The soilless culture solution preparing device according to claim 1, wherein a pH sensor, an EC sensor and a liquid level sensor are arranged in the mixing barrel.
7. The soilless culture liquid preparation device of claim 1, wherein the device further comprises a mains supply power supply module and an electric power storage power supply module.
8. A soilless culture irrigation system, comprising the culture solution preparing apparatus according to any one of claims 1 to 7.
9. The soilless culture irrigation system as claimed in claim 8, further comprising a water supply pipeline and an irrigation liquid supply pipeline, wherein the water outlet end of the water supply pipeline is connected with the upper part of the mixing barrel, and the liquid inlet of the irrigation liquid supply pipeline is connected with the bottom of the mixing barrel.
10. A soilless culture irrigation system according to claim 9, further comprising an irrigation return pipe, the outlet of which is connected to the upper portion of the mixing barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244830.8A CN110959520A (en) | 2019-12-06 | 2019-12-06 | Soilless culture solution preparation device and irrigation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911244830.8A CN110959520A (en) | 2019-12-06 | 2019-12-06 | Soilless culture solution preparation device and irrigation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110959520A true CN110959520A (en) | 2020-04-07 |
Family
ID=70033404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911244830.8A Pending CN110959520A (en) | 2019-12-06 | 2019-12-06 | Soilless culture solution preparation device and irrigation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110959520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116784082A (en) * | 2023-08-24 | 2023-09-22 | 上海华维可控农业科技集团股份有限公司 | Irrigation liquid return treatment and reuse method and system |
-
2019
- 2019-12-06 CN CN201911244830.8A patent/CN110959520A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116784082A (en) * | 2023-08-24 | 2023-09-22 | 上海华维可控农业科技集团股份有限公司 | Irrigation liquid return treatment and reuse method and system |
| CN116784082B (en) * | 2023-08-24 | 2023-11-10 | 上海华维可控农业科技集团股份有限公司 | Irrigation liquid return treatment and reuse method and system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201752202U (en) | Automatic nutrient solution circulating system of miniature vegetable factory | |
| KR101090279B1 (en) | Nutrient solution supply system | |
| CN103190328B (en) | Automatic irrigation decision system based on negative head water control water supply | |
| KR101407857B1 (en) | nutrient solution supply system with ventury | |
| CN109601334A (en) | Liquid manure drip irrigation system based on Internet of Things | |
| CN109743944A (en) | A kind of heliogreenhouse liquid manure one intelligent control system and its method | |
| CN108834873A (en) | A kind of automation plant water planting system and method | |
| CN114223521B (en) | Drip irrigation device based on root system space distribution | |
| KR101416743B1 (en) | nutrient solution supply system with ventury | |
| CN109496523A (en) | A kind of vegetables water-fertilizer integral drip irrigation appliance and system | |
| CN205756022U (en) | A kind of booth water and fertilizer irrigation device | |
| CN213368998U (en) | Greenhouse vegetable plants with fertilization watering device | |
| CN110959520A (en) | Soilless culture solution preparation device and irrigation system | |
| CN213463318U (en) | Soilless culture device convenient to add nutrient solution | |
| CN213044174U (en) | Intelligent water and fertilizer integrated machine | |
| CN212013954U (en) | Soilless culture solution preparation device and irrigation system | |
| CN216799634U (en) | Automatic blending device of nutrient solution | |
| CN201192022Y (en) | Automatic proportioning, feeding soilless cultivation device | |
| CN116369026A (en) | Water and fertilizer integrated regulation and control intelligent irrigation system | |
| CN114532197B (en) | Vortex-shaped linear water, fertilizer and gas integrated underground drip irrigation device and drip irrigation method | |
| CN207531569U (en) | A kind of bamboo seedling water planting self-loopa culture system | |
| CN216018264U (en) | Automatic integrative irrigation equipment of liquid manure of control | |
| CN213029412U (en) | Siphon device for plant cultivation device | |
| CN207369836U (en) | Combined type cultivation apparatus without soil | |
| KR20150069327A (en) | Nutrient solution supply system venturi tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |