CN112205225B - Cultivation bed for tide irrigation - Google Patents
Cultivation bed for tide irrigation Download PDFInfo
- Publication number
- CN112205225B CN112205225B CN202011078804.5A CN202011078804A CN112205225B CN 112205225 B CN112205225 B CN 112205225B CN 202011078804 A CN202011078804 A CN 202011078804A CN 112205225 B CN112205225 B CN 112205225B
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- water
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- liquid
- channels
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- 230000002262 irrigation Effects 0.000 title claims abstract description 30
- 238000003973 irrigation Methods 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 170
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 238000005192 partition Methods 0.000 claims description 25
- 230000007704 transition Effects 0.000 claims description 3
- 108091006146 Channels Proteins 0.000 claims 19
- 102000010637 Aquaporins Human genes 0.000 claims 1
- 108010063290 Aquaporins Proteins 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 235000015097 nutrients Nutrition 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
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- 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
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/28—Raised beds; Planting beds; Edging elements for beds, lawn or the like, e.g. tiles
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- 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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
- A01G27/003—Controls for self-acting watering devices
-
- 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
- A01G31/06—Hydroponic culture on racks or in stacked containers
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Hydroponics (AREA)
Abstract
The invention relates to the field of plant cultivation, and provides a cultivation bed for tidal irrigation, which comprises a bottom plate and side plates enclosed around the bottom plate, wherein the side plates are provided with a water inlet and a water outlet, the bottom plate is provided with a water flow channel, two sides of the water flow channel are distributed with a plurality of diversion channels, a water collecting channel is arranged between the bottom plate and the side plates, the height of the water collecting channel is lower than that of the bottom plate, the diversion channels are communicated with the water flow channel and the water collecting channel, the water collecting channel is used for collecting liquid on the bottom plate and delivering the liquid to the water outlet, and in the invention, the cultivation bed can realize balanced rising and falling of water level, and can ensure that plant media on the water bed absorb water and drain water simultaneously.
Description
Technical Field
The invention relates to the field of plant cultivation, in particular to a cultivation bed for tidal irrigation.
Background
The tidal irrigation plant nutrient solution cultivation technology is a water-saving irrigation mode commonly used in water culture nutrient solution cultivation, is designed according to the principle of tidal fluctuation, enables potted plants or bed plants to indirectly receive the irrigation of the nutrient solution, and can effectively improve the irrigation efficiency of water resources and the nutrient solution. The common tide irrigation technical means is that the water pump or the water valve is used for controlling the time, the water pump is used for pumping the water to the seedbed, so that the water level in the whole seedbed slowly rises and reaches the proper liquid level height (called as a flood tide), and the cultivation bed is submerged to the depth of about 2-3 cm; after a certain period of time (sufficient absorption of the crop root system), the nutrient solution rises to the surface of the medium in the pot due to capillary action about 10-15 minutes, at this time, the water return port is opened, the nutrient solution is discharged and returned to the nutrient solution pool (called as falling tide), and the nutrient solution is sent out when the other cultivation bed needs water. The key technical principle of tidal irrigation is the control of water level and the uniformity of water absorption saturation of plant root media.
When the existing tidal irrigation cultivation device is used for irrigating a cultivation bed, the balance of the water level rise of the whole liquid level plane cannot be guaranteed, the purpose that each plant on the water bed absorbs water simultaneously is achieved, when the cultivation bed is used for irrigating and draining water, the existing cultivation bed cannot guarantee the balance of the whole liquid level plane to drop, certain ponding is often caused in a local area after the existing cultivation bed is used for draining water, and the growth of the plant root system phase water bed is possibly caused.
In addition, the existing tidal irrigation device is generally controlled through a water pump or a water valve, and when large-area seedling cultivation or multi-layer seedling cultivation is carried out, the whole control system is more complicated due to the arrangement of the water pump or the water valve, so that the practical application of the tidal irrigation device is not facilitated.
Disclosure of Invention
Therefore, a cultivation bed for tidal irrigation needs to be provided, and the problem that the liquid level in the existing cultivation bed cannot be balanced and simultaneously rises and falls is solved.
In order to achieve the above purpose, the invention provides a cultivation bed for tidal irrigation, which comprises a bottom plate and side plates enclosed around the bottom plate, wherein the side plates are provided with a water inlet and a water outlet, the bottom plate is provided with a water flow channel, two sides of the water flow channel are distributed with a plurality of diversion channels, a water collecting channel is arranged between the bottom plate and the side plates, the height of the water collecting channel is lower than that of the bottom plate, the diversion channels are communicated with the water flow channel and the water collecting channel, the water flow channel receives liquid flowing out from the water inlet, and the water collecting channel is used for converging the liquid on the bottom plate and conveying the liquid to the water outlet, and the liquid is nutrient solution or water for plant cultivation.
Further, the two sides of the water flow channel are respectively provided with a baffle, the baffles extend along the long axis direction of the bottom plate, one end of the water flow channel far away from the water inlet is communicated with the water collecting channel, the baffles extend along the long axis direction of the bottom plate and can rapidly convey liquid to a position far away from the water inlet, and the shape of the bottom plate can be rectangular, square, round or other polygons.
Further, be equipped with a plurality of cave dish backup pads that set up side by side on the both sides of rivers passageway, be equipped with the support boss that a plurality of intervals set up in the cave dish backup pad, be equipped with the escape canal between two adjacent support boss, the escape canal is used for gathering the liquid on the bottom plate to the passageway that catchments, and the reposition of redundant personnel passageway is the interval region between two adjacent cave dish backup pads, the cave dish backup pad is by baffle slope to curb plate so that the liquid in the cave dish backup pad gathers to the passageway that catchments, and the support boss is used for supporting the cave dish of follow-up placing on the cultivation bed, and the spaced region forms the escape canal and can be with the quick discharge of liquid in the cave dish backup pad.
Further, a plurality of shunt ports are formed in the two partition plates, the shunt ports are in one-to-one correspondence with the shunt channels, the shunt channels are communicated with the water flow channels through the corresponding shunt ports, the bottom plate areas on the two sides of the water flow channels are defined as irrigation areas, liquid is divided into the irrigation areas on the two sides in the flowing process of the water flow channels through the shunt ports on the partition plates on the two sides, when the opening size of each shunt port is 5-10mm, the test of each shunt port is the best opening, after water enters the channel, the water can be quickly led to the tail end, and the water can be distributed to the shunt ports, so that the liquid in the irrigation areas can be uniformly and fully fed, and the shunt ports of the two partition plates are arranged relatively or in a staggered mode.
Further, the straight line distance between the split-flow port close to the water inlet and the water inlet on the same partition plate is larger than the distance between the split-flow ports, for example, the straight line between the split-flow port close to the water inlet and the water inlet is arranged to be twice the distance between the split-flow ports, so that liquid in the water flow channel flows towards the tail end of the water flow channel as much as possible, the liquid level far away from the water inlet and the liquid level close to the water inlet can rise simultaneously and evenly, and a certain gradient is formed on the liquid level when water enters the water bed.
Further, the shape of supporting boss is rectangular shape, supports equidistant setting of boss, supporting boss and baffle are in the horizontal plane looks vertically, and equidistant setting of supporting boss makes escape canal evenly distributed in the cave dish backup pad for the liquid level homoenergetic when the flood and the deliquescing in the irrigation area rises and descends.
Further, the top surface of supporting boss is the arcwall face and the highest point of the top surface of a plurality of supporting boss is in same horizontal plane, and the circular arc transition forms between the bottom of two adjacent supporting bosses the escape canal, for example, the upper surface of cave dish backup pad forms wavy oscilaltion structure, and the trough is the escape canal, and the crest is supporting boss, and the top surface of supporting boss is the arcwall face and makes difficult ponding that produces on the supporting boss, and the liquid on the supporting boss can be quick to the escape canal drainage.
Further, a slope is arranged at the position, close to the partition plate, of each drainage ditch, the slope inclines towards the drainage ditches from the partition plate, the slope enables liquid to rapidly flow into the drainage ditches when water in the water flow channel flows out from the partition plate, accumulated water is not generated in the water bed, and plant root systems are prevented from growing towards the water bed.
Further, a plurality of plug support plates in the same irrigation area are connected into an integral structure by the diversion channels.
Further, the water collecting channel comprises a first slope ditch, a second slope ditch and a third slope ditch which are communicated in sequence, the first slope ditch is communicated with the water flow channel, the second slope ditch is identical to the drainage ditch and the diversion channel of the irrigation area, the third slope ditch is communicated with the water outlet, and liquid in the water collecting channel flows along the first slope ditch, the second slope ditch and the third slope ditch.
Further, the water inlet and the water outlet are positioned on the same side plate, the water inlet and the water outlet are positioned on the same side, liquid flows from the water flow channel to the tail end of the water flow channel, and the water collecting channel flows to the water outlet along the opposite flowing direction, so that the liquid level of the liquid in the cultivation bed can rise uniformly.
The technical scheme has the following beneficial effects:
According to the invention, the water flow channel is arranged in the middle of the cultivation bed, after the liquid enters the water flow channel, the liquid can be quickly led to the other end of the water bed, meanwhile, the liquid flows towards the two sides of the water inlet channel through the diversion channel, so that when the liquid level rises, a liquid level gradient is not formed from one end of the water bed to the other end of the water bed, the equilibrium of the rising liquid level is ensured, the purpose of simultaneously absorbing water of each plant on the water bed is achieved, when a tide is returned, the liquid quickly flows out from the drainage ditch, the water level can be quickly lowered, and each region can be simultaneously drained, and the equilibrium of the whole plane is ensured, so that plant media on the water bed can simultaneously absorb water and simultaneously drain.
Drawings
Fig. 1 is a schematic structural view of a cultivation bed according to an embodiment.
Fig. 2 is an enlarged view of region a of fig. 1.
Fig. 3 is a schematic structural view of a cross section of a tray support plate according to an embodiment.
Fig. 4 is a plan view of the cultivating bed according to the embodiment, in which arrows indicate water flow directions.
Fig. 5 is a partial view of the tray support plate according to the embodiment, in which arrows indicate water flow directions.
Reference numerals illustrate:
100. a water inlet;
200. A water outlet;
300. a water flow channel; 310. a partition plate; 320. a shunt port;
400. a plug support plate; 410. a shunt channel; 420. a drainage ditch; 430. a support boss; 440. a ramp;
500. A water collecting channel; 510. a first slope trench; 520. a second slope trench; 530. and a third slope groove.
Detailed Description
In order to describe the technical content, constructional features, achieved objects and effects of the technical solution in detail, the following description is made in connection with the specific embodiments in conjunction with the accompanying drawings.
Referring to fig. 1-5, the present embodiment provides a cultivation bed for tidal irrigation, which comprises a bottom plate and side plates surrounding the bottom plate, wherein a water inlet 100 and a water outlet 200 are provided on the side plates, two opposite partition plates 310 are provided on the bottom plate, the partition plates 310 extend along the long axis direction of the bottom plate, the interval between the two partition plates 310 is a water flow channel 300, the two partition plates 310 are symmetrically distributed at the central position of the bottom plate, two sides of the water flow channel 300 are irrigation areas, a plurality of cave dish support plates 400 are provided on the irrigation areas, a plurality of support bosses 430 are provided on the cave dish support plates 400, and the interval area between every two adjacent support bosses 430 becomes a drainage ditch 420. The water collecting channel 500 is arranged between the bottom plate and the side plate, the height of the water collecting channel 500 is lower than that of the bottom plate, the interval area between every two adjacent tray support plates 400 becomes a diversion channel 410, the water collecting channel 500 is communicated with the water outlet 200, the water collecting channel 500 is used for conveying liquid to the water outlet 200, the water collecting channel 500, the drainage ditch 420 and the diversion channel 410 are all slopes of at least 1 DEG, the tray support plates 400 are inclined towards the side plate by the partition plate 310 so that the liquid in the tray support plates 400 is converged towards the water collecting channel 500, the support boss 430 is used for supporting the subsequently placed trays on a cultivation bed, and the interval area forms the drainage ditch 420 so that the liquid on the tray support plates 400 can be rapidly discharged.
A plurality of shunt ports 320 are formed in each of the two partition plates 310, the shunt ports 320 in each of the two partition plates 310 are arranged oppositely, the distance between the shunt ports 320 close to the water inlet 100 and the water inlet 100 on the same partition plate 310 is twice as large as that between the shunt ports 320, the shunt ports 320 are in one-to-one correspondence with the shunt channels 410, the shunt channels 410 are communicated with the water flow channels 300 through the corresponding shunt ports 320, liquid is divided into irrigation areas on two sides through the shunt ports 320 in the two partition plates 310 in the flowing process of the water flow channels 300, and the opening size of each shunt port 320 can be 5-10mm.
The shape of the supporting boss 430 is a strip shape, the supporting bosses 430 are arranged at equal intervals, the supporting bosses 430 are perpendicular to the partition plate 310 in the horizontal plane, the supporting bosses 430 are arranged at equal intervals, so that the drainage ditches 420 are uniformly distributed on the plug support plate 400, and the liquid level in the irrigation area can be uniformly raised and lowered during the water rising and the tide withdrawing.
The top surface of support boss 430 is the arcwall face and the highest point of the top surface of a plurality of support boss 430 is in same horizontal plane, circular arc transition forms escape canal 420 between the bottom of two adjacent support boss 430, from this the upper surface of cave dish backup pad 400 forms wavy oscilaltion structure, the trough is escape canal 420, the crest is support boss 430, the top surface of support boss 430 is the arcwall face and makes difficult ponding of producing on the support boss 430, liquid on the support boss 430 can be quick to escape canal 420 drainage, be equipped with a slope 440 on the position that every escape canal 420 is close to baffle 310, slope 440 is by baffle 310 to escape canal 420 slope, slope 440 makes when the water of rivers passageway 300 is followed baffle 310 and is stroked, liquid can be quick inflow escape canal 420, make do not produce ponding in the water bed, guarantee that the plant root system can not be toward the water bed growth, conveniently place and take.
The water collecting channel 500 includes a first slope channel 510, a second slope channel 520 and a third slope channel 530 which are sequentially communicated, the first slope channel 510 is communicated with the water flow channel 300, the second slope channel 520 is identical to the drainage channel 420 and the diversion channel 410 of the irrigation area, the third slope channel 530 is communicated with the water outlet 200, and the first slope channel 510, the second slope channel 520 and the third slope channel 530 all have slopes of more than 1 degree so that the liquid in the water collecting channel 500 flows along the first slope channel 510, the second slope channel 520 and the third slope channel 530.
The water inlet 100 and the water outlet 200 are positioned on the same side plate of the cultivating bed, the water inlet and the water outlet 200 are positioned on the same side, the liquid flows from the water flow channel 300 to the end thereof, and the water collecting channel 500 flows to the water outlet 200 along the opposite flowing direction, so that the liquid level of the liquid in the cultivating bed can rise uniformly.
The working process of the invention comprises the following steps:
Liquid enters the water flow channel 300 from the water inlet 100, the liquid quickly flows to the other end after entering the water flow channel 300, so that the liquid can be quickly distributed on the bottom plate, meanwhile, the liquid is split to irrigation areas on two sides of the water flow channel 300 through the split-flow ports 320 on the partition plate 310 and the split-flow channels 410 connected with the split-flow ports, the liquid is collected on the water collecting channel 500 and flows to the water outlet 200, the blocking plate 6211 blocks the emptying port 212 due to the fact that the water outlet 200 is in a closed state, the liquid gradually accumulates and ascends in a cultivation bed, in the ascending process, the uniformity of distribution of the liquid on the water bed during water inlet is guaranteed due to the fact that the flow directions of the water collecting channel 500 and the water flow channel 300 are opposite, and the straight line distance between the split-flow ports 320 of the irrigation area closest to the water inlet 100 and the water inlet 100 is larger than the distance between the split-flow ports 320, so that two ends of a liquid plane can relatively accumulate and ascend, and the situation that the liquid level of one end is low can not occur.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the statement "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal device that includes the element. Further, herein, "greater than," "less than," "exceeding," and the like are understood to not include the present number; "above", "below", "within" and the like are understood to include this number.
While the embodiments have been described above, other variations and modifications will occur to those skilled in the art once the basic inventive concepts are known, and it is therefore intended that the foregoing description and drawings illustrate only embodiments of the invention and not limit the scope of the invention, and it is therefore intended that the invention not be limited to the specific embodiments described, but that the invention may be practiced with their equivalent structures or with their equivalent processes or with their use directly or indirectly in other related fields.
Claims (4)
1. The cultivation bed for tidal irrigation is characterized by comprising a bottom plate and side plates which are enclosed around the bottom plate, wherein a water inlet and a water outlet are formed in the side plates, water flow channels are formed in the bottom plate, a plurality of diversion channels are distributed on two sides of each water flow channel, water collecting channels are formed between the bottom plate and the side plates, the height of each water collecting channel is lower than that of the bottom plate, the diversion channels are communicated with the water flow channels and the water collecting channels, the water flow channels receive liquid flowing out from the water inlet, and the water collecting channels are used for converging the liquid on the bottom plate and conveying the liquid to the water outlet;
The two sides of the water flow channel are respectively provided with a baffle, the baffles extend along the long axis direction of the bottom plate, and one end of the water flow channel, which is far away from the water inlet, is communicated with the water collecting channel;
The two sides of the water flow channel are provided with a plurality of plug support plates which are arranged side by side, each plug support plate is provided with a plurality of support bosses which are arranged at intervals, a drainage ditch is arranged between every two adjacent support bosses, the drainage ditch is used for converging liquid on the bottom plate to the water collecting channel, the diversion channel is a spacing area between every two adjacent plug support plates, and the plug support plates are inclined towards the side plates by the partition plates so that the liquid in the plug support plates is converged towards the water collecting channel;
A plurality of split-flow ports are formed in each of the two partition plates, the split-flow ports are in one-to-one correspondence with the split-flow channels, and the split-flow channels are communicated with the water flow channels through the corresponding split-flow ports;
the support bosses are in a strip shape and are arranged at equal intervals, and the support bosses are perpendicular to the partition plate in a horizontal plane;
the top surfaces of the supporting bosses are arc-shaped surfaces, the highest points of the top surfaces of the supporting bosses are on the same horizontal plane, and arc transition is formed between the bottoms of two adjacent supporting bosses.
2. The growing bed of claim 1, wherein the straight line distance between the split-flow opening near the water inlet and the water inlet on the same partition plate is greater than the distance between the split-flow openings.
3. The growing bed of claim 1, wherein each drain is provided with a ramp adjacent the partition, the ramp being inclined from the partition to the drain.
4. The growing bed of claim 1, wherein the water inlet and the water outlet are located on the same side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078804.5A CN112205225B (en) | 2020-10-10 | 2020-10-10 | Cultivation bed for tide irrigation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011078804.5A CN112205225B (en) | 2020-10-10 | 2020-10-10 | Cultivation bed for tide irrigation |
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| Publication Number | Publication Date |
|---|---|
| CN112205225A CN112205225A (en) | 2021-01-12 |
| CN112205225B true CN112205225B (en) | 2024-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011078804.5A Active CN112205225B (en) | 2020-10-10 | 2020-10-10 | Cultivation bed for tide irrigation |
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| CN (1) | CN112205225B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116058268A (en) * | 2022-12-26 | 2023-05-05 | 深业农科装备技术(深圳)有限公司 | Tide type cultivation groove |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213719046U (en) * | 2020-10-10 | 2021-07-20 | 福建省中科生物股份有限公司 | Cultivation bed for tidal irrigation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07123877A (en) * | 1993-11-05 | 1995-05-16 | Takaoka Electric Mfg Co Ltd | Irrigation apparatus for plant cultivation |
| CN107295966A (en) * | 2017-08-29 | 2017-10-27 | 河北晨超金属丝网有限公司 | A kind of tide irrigation system |
| CN208768592U (en) * | 2018-08-28 | 2019-04-23 | 重庆科光潼农种苗有限公司 | Tide irrigation raise seedling bed |
| CN109832182B (en) * | 2019-02-15 | 2023-12-29 | 福建省中科生物股份有限公司 | Cultivation water tank |
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2020
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213719046U (en) * | 2020-10-10 | 2021-07-20 | 福建省中科生物股份有限公司 | Cultivation bed for tidal irrigation |
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