CN213662862U - Internal circulation system is grown in synthesis of rice fishing - Google Patents
Internal circulation system is grown in synthesis of rice fishing Download PDFInfo
- Publication number
- CN213662862U CN213662862U CN202022378914.5U CN202022378914U CN213662862U CN 213662862 U CN213662862 U CN 213662862U CN 202022378914 U CN202022378914 U CN 202022378914U CN 213662862 U CN213662862 U CN 213662862U
- Authority
- CN
- China
- Prior art keywords
- rice
- water
- ditch
- breeding
- fish
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Landscapes
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model discloses a comprehensive planting and breeding internal circulation system for rice and fishery, which is characterized in that a ditch and an aquaculture system are arranged in a rice field, so that water circulates between the rice field and the aquaculture system, compared with the existing rice and fish symbiotic mode, the planting and breeding are relatively managed in different regions, mutual restriction is avoided, complementary advantages are realized, feeding, managing and catching of aquatic products are more convenient, mechanized harvesting of rice is facilitated, and the water can be lifted from the aquaculture system to the irrigation ditch, the water after irrigating the rice field passes through the return ditch, the water is lifted from the return ditch to the aquaculture system for circulation through the water body lifting equipment, therefore, the water body forms circulation between the rice field and the aquaculture system, and when the circulating water system is applied to hilly lands, the defects that the hilly lands are uneven and circulating water is difficult to arrange on a large scale are overcome, and the moderate-scale operation of the hilly lands is convenient to realize.
Description
Technical Field
The utility model relates to a technical field is grown in rice and fishing is synthesized, particularly, relates to an internal circulation system is grown in rice and fishing is synthesized.
Background
The fish culture in rice field in China has been recorded from the Han generation more than 2000 years ago, mainly focuses on the rice planting areas in the south of Zhejiang and the like, and the fish culture in rice field, and the rice and fish are in mutual profit. At present, in the current rice fishing planting and breeding mode, most of the modes are rice and aquatic product symbiotic modes, namely, when rice is planted in a rice field, aquatic products are intercropped, the rice planting and aquatic product breeding in the mode are mutually restricted, so that the feeding, the management and the fishing of aquatic products are not convenient, the rice harvesting efficiency is not convenient, the mechanized operation cannot be carried out, and the popularization is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an internal circulation system is synthesized to rice and fishing, compare with current rice and fishing intergrowth mode, plant and breed the management of relatively subregion, avoid restricting each other, realize the advantage complementary, the throwing and feeding of aquatic products, it is more convenient to manage and catch, the mechanization of the rice of also being convenient for is reaped, and water can be followed aquaculture system and promoted to the irrigation ditch, water behind the irrigation rice field is behind the backward flow irrigation ditch, promote aquaculture system to circulate from the backward flow ditch with water through water lifting means, thereby make the water form the paddy field, circulate between the aquaculture system, when being applied to hilly area, be favorable to overcoming hilly area land unevenness, be difficult to the defect of scale arrangement circulating water, be convenient for realize the moderate degree scale operation in hilly area.
The utility model discloses a following technical scheme realizes:
a comprehensive internal circulation system for planting and breeding rice and fish,
comprises a paddy field, wherein an aquaculture system and a ditch are arranged in the paddy field;
the ditches comprise an irrigation ditch and a backflow ditch, the irrigation ditch is arranged at the relatively high position of the rice field, and the backflow ditch is arranged at the relatively low position of the rice field;
and a water body lifting device is arranged in the backflow channel to lift the water body in the backflow channel to an aquaculture system, and a water body lifting device is arranged in the aquaculture system to lift the water body in the aquaculture system to the irrigation channel.
Optionally, the ditch further comprises a circulation ditch which is arranged between the relatively high position and the relatively low position of the rice field, and two ends of the circulation ditch are communicated with the aquaculture system.
Optionally, the aquaculture system comprises a fish pond and an aquaculture apparatus disposed within the fish pond, the aquaculture apparatus comprising at least one aquaculture tank, and a water body exchange device mounted on the aquaculture tank.
Optionally, the lower parts of the two ends of the culture tank are closed, the upper part of the culture tank is provided with a screen, and the vertical surfaces of the two sides of the culture tank are closed; the two sides of the bottom of the culture tank are inclined towards the middle to form a first-stage sewage accumulation area.
Optionally, the breeding device further comprises a secondary sewage gathering tank arranged at the rear end of the breeding tank, and two sides of the bottom of the secondary sewage gathering tank incline to the middle to form a secondary sewage gathering area.
Optionally, the cultivation device comprises a plurality of cultivation grooves, the cultivation grooves are arranged in parallel, and adjacent cultivation grooves are mutually attached and separated.
Optionally, the water body exchanging device comprises a water pushing device and/or a water pulling device, the water pushing device is arranged at the front end of the culture device to guide the water body in the fish pond into the culture tank, and the water pulling device is arranged at the rear end of the culture device to guide the water body in the culture tank into the fish pond.
Optionally, the culture device is arranged in the fish pond, and the total area of the culture device is less than 80% of the total area of the fish pond.
The utility model discloses following advantage and beneficial effect have at least: in the utility model, by arranging the ditch and the aquaculture system in the paddy field, the ditch comprises an irrigation ditch arranged at a relatively high position of the paddy field and a backflow ditch arranged at a relatively low position of the paddy field, and the backflow ditch is communicated with the aquaculture system, so that water circulates between the paddy field and the aquaculture system, compared with the existing rice and fish symbiosis mode, the relative partition management of planting and cultivation is realized, mutual restriction is avoided, advantage complementation is realized, feeding and harvesting of aquatic products are more convenient, mechanized harvesting of rice is also convenient, and water can be lifted to the irrigation ditch from the aquaculture system, after the water after irrigating the paddy field passes through the backflow ditch, the aquaculture system is lifted to circulate from the backflow ditch through a water lifting device, so that the water forms the paddy field, the water circulates between the aquaculture systems, when the aquaculture system is applied to hilly lands, the unevenness of the hilly lands is favorably overcome, the defect of difficulty in scale arrangement of circulating water is convenient for realizing proper scale operation in hilly areas.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of an internal circulation system for comprehensive planting and breeding of rice and fish provided by the present invention;
FIG. 2 is a schematic structural view of the cultivation apparatus;
FIG. 3 is a top view of the cultivation apparatus;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
icon: 1-paddy field, 2-irrigation ditch, 3-backflow ditch, 4-circulation ditch, 5-fishpond, 6-cultivation device, 7-cultivation tank, 8-screen, 9-primary sewage accumulation area, 10-secondary sewage accumulation tank 10, 11-water pushing equipment, 12-water pulling equipment, 13-gap, 14-secondary sewage accumulation area.
Detailed Description
As shown in FIGS. 1 to 4, an internal circulation system for rice and fish comprehensive planting and raising (the direction indicated by the arrow in FIG. 1 represents the flow direction of water) comprises a rice field 1, wherein an aquaculture system and a ditch are arranged in the rice field 1; the irrigation canals and ditches include irrigation canals and ditches 2, backward flow irrigation canals and ditches 3 and circulation irrigation canals and ditches 4, irrigation canals and ditches 2 locate the relative eminence in paddy field 1, so that water from irrigation canals and ditches 2 flow direction paddy field 1 irrigates, backward flow irrigation canals and ditches 3 locate the relative low department in paddy field 1, so that water in the paddy field 1 collects at backward flow irrigation canals and ditches 3, be equipped with water lifting means (not shown in the figure) in the backward flow irrigation canals and ditches 3, water lifting means can be other electronic water delivery devices such as immersible pump or gas (vapour) move water delivery device, circulation irrigation canals and ditches 4 are located between the relative eminence and the.
The aquaculture system comprises a fishpond 5 and a culture device 6, wherein the culture device 6 is arranged in the fishpond 5, the total area of the culture device 6 is less than 80% of the total area of the fishpond 5, and a notch 13 is reserved on one side of the whole culture device 6 and one side of the fishpond 5 in practical application so as to facilitate the realization of small circulation of a water body between the fishpond 5 and the culture device. Both ends of the circulation channel 4 are communicated with the aquaculture system, particularly both ends of the circulation channel 4 are communicated with the front end and the rear end of the fish pond 5, so that water in the fish pond can flow into the circulation channel to form circulation, and a water level control device (the water level control device can be a gate or other facilities) can be arranged at the joint of the fish pond and the circulation channel to ensure that the water level of the aquaculture system is not lower than the designed water level.
The aquaculture system is also provided with a water body lifting device (not shown), in particular, in the fish pond 5, the water body lifting device in the return canal 3 lifts the water body in the return canal 3 to the fish pond 5, and the water body lifting device in the fish pond 5 lifts the water body in the fish pond 5 to the irrigation canal 2.
In practical application, shrimps and crabs can be cultured in the circulation ditch 4 to add shellfish to strengthen water purification, an aerator (not shown) is arranged in the circulation ditch 4 and/or the backflow ditch 3, and the aerator is a waterwheel type aerator and has the triple effects of aeration, wave making and flow promotion, and the backflow of water is promoted.
The relatively high position of the aquaculture system is lower than the relatively low position of the circulation canal 4, namely the highest position at the bottom of the fish pond 5 is lower than the lowest position at the bottom of the circulation canal 4, and in practical application, the sectional area of the circulation canal 4 is not less than 10 percent of the sectional area of the fish pond 5, so as to ensure smooth water flow. Furthermore, it should be noted that, since the height of the circulation canal 4 is located between the irrigation canal 2 and the return canal 3, the height of the fish pond is located between the irrigation canal 2 and the return canal 3, which avoids the increase of the lifting height that is too high when lifting the water of the return canal 3 to the fish pond and when lifting the water of the fish pond to the irrigation canal 3, and thus the increase of the lifting energy consumption.
In practical application, the area occupied by the paddy field 1 is far larger than the sum of the areas of the ditches and the fish ponds 5, preferably, the sum of the areas of the ditches and the fish ponds 5 is less than 1/9 of the area occupied by the paddy field 1, and the area of the fish ponds 5 is preferably less than 10 percent of the area of the paddy field 1, so that the paddy rice planted in the paddy field 1 has enough capacity of purifying soluble pollutants in water.
The culture device 6 comprises at least one culture tank 7, water body exchange equipment arranged on the culture tank 7 and a secondary sewage gathering tank 10 arranged at the rear end of the culture tank 7. The breeding device 6 comprises a plurality of breeding grooves 7, the breeding grooves 7 are arranged in parallel, the adjacent breeding grooves 7 are mutually attached and separated, the breeding quantity in the embodiment is 5, and different kinds of aquatic products can be bred in each breeding groove 7. The number of the culture grooves 7 can be selected according to the total area of the rice field 1, for example, the area of the rice field 1 is not more than 300 mu, the number of the culture grooves 7 is not more than 10, and the problem that the yield of cultured aquatic products is too large, which results in insufficient ability of rice to purify soluble pollutants is avoided.
The lower parts of two ends of the culture tank 7 are closed, the upper part is provided with a screen 8, and the vertical surfaces of two sides of the culture tank 7 are closed; the screen cloth 8 can supply water to pass through, and aquatic products can not pass through, the material of screen cloth 8 is glass steel, stainless steel, plastics or hot galvanizing material's one or more, breed two sides of bottom of groove 7 and incline to form the one-level and gather dirty district 9, in this embodiment, dirty district 9 is gathered to the one-level is a slabby pavement, the excrement and urine gathering that aquatic products produced gathers dirty district 9 at the one-level, the excrement and urine that does not gather dirty district 9 of one-level again gathers dirty inslot gathering at the secondary, the bottom both sides that the secondary gathered dirty groove 10 incline to the middle part and form second grade and gather dirty district 14, the length direction that the secondary gathered dirty groove is perpendicular with the length direction of breed, the length that the secondary gathered dirty groove promptly equals the holistic width of a plurality of breed grooves 7, adjacent secondary gathers dirty groove and can directly communicate, even it gathers dirty groove to become.
A sedimentation tank (not shown) is arranged near the fish pond 5, and the primary sewage accumulation area 9 and the secondary sewage accumulation area 14 can be connected with the sedimentation tank through a pump and a pipeline system (not shown) so as to pump the excrement collected in the primary sewage accumulation area 9 and the secondary sewage accumulation groove 10 into the sedimentation tank at regular intervals (every month, every quarter or every half year), and further produce organic fertilizer which is used as base fertilizer for planting rice.
In this embodiment, the water body exchanging device includes a water pushing device 11 and a water pulling device 12, the water pushing device 11 is installed at the front end of the cultivation device 6, the water pulling device 12 is installed at the rear end of the cultivation device 6, only the water pushing device 11 or the water pulling device 12 may be provided, specifically, the water pushing device 11 is installed at the front end side wall of the cultivation tank 7, the water pulling device 12 is installed at the rear end side wall of the secondary sewage collecting tank 10, the water pushing device 11 enables water in the fish pond 5 to enter the cultivation device 6, the water pulling device 12 enables water in the cultivation device 6 to be discharged, and both the water pushing device 11 and the water pulling device 12 may be other electric water delivery devices such as a submersible pump or other pneumatic (steam) water delivery devices.
The utility model also provides an application method of above-mentioned rice and fishing is synthesized and is planted internal circulation system, including following step:
s1, arranging aquaculture systems and ditches in the paddy field 1, wherein the aquaculture systems and ditches comprise that an irrigation ditch 2 is arranged at a relatively high position of the paddy field 1, a backflow ditch 3 is arranged at a relatively low position of the paddy field 1, and a circulation ditch 4 is arranged between the relatively high position and the relatively low position of the paddy field 1; arranging a fish pond 5 at a proper position, arranging a culture device 6 in the fish pond 5, and keeping a gap 13 between one side of the culture device 6 and one side of the fish pond 5; the arrangement of the culture device 6 specifically comprises the steps of fixing the culture tank 7 and the secondary sewage gathering tank 10 on the fishpond 5 by piling, anchoring and the like, installing a water pushing device 11 on the side wall of the front end of the culture tank 7, and installing a water pulling device 12 on the side wall of the rear end of the secondary sewage gathering tank 10.
S2, communicating the rice field 1 and the aquaculture system through a ditch, so that a water body forms circulation between the rice field 1 and the aquaculture system, and a rice and fish comprehensive planting and breeding system is constructed; specifically, water is irrigated to the rice field 1 through the irrigation ditch 2, the irrigated water flows back to the return ditch 3, the water in the return ditch 3 is lifted to the fish pond 5 through the water body lifting equipment, the water in the fish pond 5 flows back to the circulation ditch 4 after passing through the culture device, the water in the fish pond 5 is lifted to the irrigation ditch 2 through the water body lifting equipment to irrigate to the rice field 1, and the circulation is formed repeatedly.
S3, planting rice in the rice field 1, and cultivating aquatic species in an aquaculture system, specifically comprising cultivating shrimps and crabs in the circulation channel 4, adding shellfish to strengthen water purification, arranging an aerator in the circulation channel 4 and/or the circulation channel, wherein the aerator is a waterwheel type aerator, has triple effects of aeration, wave making and flow promotion, and promotes water body backflow; meanwhile, different fishes, shrimps, crabs, shellfish and the like are cultivated in different cultivation tanks 7 according to market demand conditions.
Compared with the existing rice and fish symbiosis mode, the utility model has the advantages that the relative zoning management of planting and breeding is realized, the mutual restriction is avoided, the feeding, the management and the fishing of aquatic products are more convenient, the mechanized harvesting of rice is convenient, the water after the irrigation in the rice field 1 flows to the return canal 3, the water is lifted to the fishpond 5 from the return canal 3 through the water lifting equipment in the return canal 3, the water forms small circulation between the fishpond and the breeding device 6 through the gap 3 between the side wall of the fishpond 5 and the breeding device 6, the water in the fishpond 5 can also flow into the circulation canal 4 to form circulation, the water in the fishpond 5 can be lifted to the irrigation canal 2 to flow into the rice field 1 again or directly flow into the rice field 1 from the circulation canal 4 through the water lifting equipment in the fishpond 5, thereby the circulation between the rice field 1 and the aquaculture system is realized, when the water is applied to hilly lands, the unevenness of the lands is favorably overcome, the defect of difficulty in scale arrangement of circulating water is convenient for realizing proper scale operation in hilly areas.
In addition, this system in the aquaculture in-time shifts out the water with excrement, avoids excrement to pollute the water, reduces the pollution load in the aquaculture, reduces the purification treatment pressure in paddy field.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a rice and fish are synthesized and are planted internal circulation system which characterized in that:
comprises a rice field (1), wherein an aquaculture system and a ditch are arranged in the rice field (1);
the ditches comprise an irrigation ditch (2) and a backflow ditch (3), the irrigation ditch (2) is arranged at the relatively high position of the rice field (1), and the backflow ditch (3) is arranged at the relatively low position of the rice field (1);
the backflow ditch (3) is communicated with the aquaculture system, a water body lifting device is arranged in the backflow ditch (3) to lift the water body in the backflow ditch (3) to the aquaculture system, and a water body lifting device is arranged in the aquaculture system to lift the water body in the aquaculture system to the irrigation ditch (2).
2. The rice and fish comprehensive planting and breeding internal circulation system according to claim 1, characterized in that: the ditch still includes circulation ditch (4), circulation ditch (4) locate the relative height in paddy field (1) be in with relative low between, the both ends of circulation ditch (4) all with aquaculture system communicates.
3. The rice and fish comprehensive planting and breeding internal circulation system according to claim 1, characterized in that: the aquaculture system comprises a fish pond (5) and a culture device (6), wherein the culture device (6) is arranged in the fish pond (5), and the culture device (6) comprises at least one culture tank (7) and water body exchange equipment arranged on the culture tank (7).
4. The internal circulation system for comprehensive rice and fish planting and breeding of claim 3 is characterized in that: the lower parts of two ends of the culture tank (7) are closed, the upper part of the culture tank is provided with a screen (8), and the vertical surfaces of two sides of the culture tank (7) are closed; the two sides of the bottom of the culture tank (7) incline to the middle part to form a first-stage sewage accumulation area (9).
5. The internal circulation system for comprehensive rice and fish planting and breeding of claim 3 is characterized in that: the breeding device (6) further comprises a secondary sewage gathering groove (10) arranged at the rear end of the breeding groove (7), and two sides of the bottom of the secondary sewage gathering groove (10) are inclined to the middle to form a secondary sewage gathering area (14).
6. The internal circulation system for comprehensive rice and fish planting and breeding of claim 5 is characterized in that: the breeding device (6) comprises a plurality of breeding grooves (7), the breeding grooves (7) are arranged in parallel, and adjacent breeding grooves (7) are mutually attached and separated.
7. The internal circulation system for comprehensive rice and fish planting and breeding of claim 3 is characterized in that: the water body exchange equipment comprises a water pushing equipment (11) and/or a water pulling equipment (12), the water pushing equipment (11) is installed at the front end of the culture device (6) to guide the water body in the fish pond (5) into the culture tank (7), and the water pulling equipment (12) is installed at the rear end of the culture device (6) to guide the water body in the culture tank (7) into the fish pond (5).
8. The internal circulation system for comprehensive rice and fish planting and breeding of claim 3 is characterized in that: the total area of the culture device (6) is less than 80 percent of the total area of the fishpond (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022378914.5U CN213662862U (en) | 2020-10-22 | 2020-10-22 | Internal circulation system is grown in synthesis of rice fishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022378914.5U CN213662862U (en) | 2020-10-22 | 2020-10-22 | Internal circulation system is grown in synthesis of rice fishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213662862U true CN213662862U (en) | 2021-07-13 |
Family
ID=76760083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022378914.5U Active CN213662862U (en) | 2020-10-22 | 2020-10-22 | Internal circulation system is grown in synthesis of rice fishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213662862U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112136626A (en) * | 2020-10-22 | 2020-12-29 | 上海能正渔业科技开发有限公司 | Rice and fish comprehensive planting and breeding internal circulation system and use method |
-
2020
- 2020-10-22 CN CN202022378914.5U patent/CN213662862U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112136626A (en) * | 2020-10-22 | 2020-12-29 | 上海能正渔业科技开发有限公司 | Rice and fish comprehensive planting and breeding internal circulation system and use method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109757322B (en) | A rice-fish-shrimp cycle breeding system and a rice-fish-shrimp breeding method | |
| CN107211715A (en) | A kind of ecological farm field system and construction method | |
| CN210492208U (en) | Rice field fish culture ecological system capable of recycling running water | |
| CN114304037A (en) | A kind of grass carp-river crab- snail polytrophic pond system and pond culture method | |
| CN104872048A (en) | Pond fish water tank type intensive recirculating aquaculture mode | |
| CN218736622U (en) | Saline-alkali soil leaching and breeding system of constructed wetland water circulation | |
| CN221420921U (en) | Centralized integrated rice and fish symbiotic cultivation tail water treatment system | |
| CN107980674B (en) | Cultivation method for cultivating fishes in high density on large water surface | |
| CN213662862U (en) | Internal circulation system is grown in synthesis of rice fishing | |
| CN112673915A (en) | Honeycomb pond rice and fish symbiotic culture system | |
| CN113261528A (en) | Ecological circulation farming systems in pond | |
| CN112136626A (en) | Rice and fish comprehensive planting and breeding internal circulation system and use method | |
| CN111758615A (en) | A kind of fish pond circulating water ecological breeding method | |
| CN108163987B (en) | An artificial wetland construction method for comprehensive treatment of non-point source pollution in agricultural production | |
| CN210094213U (en) | Rice, fishing and shrimp circulating planting and breeding system | |
| CN207022794U (en) | A kind of ecological farm field system | |
| CN212260168U (en) | A pond culture system that promotes material circulation | |
| CN207948595U (en) | A kind of intensive ecological efficient sturgeon cultivation combination pond | |
| CN218649759U (en) | Rice and fish comprehensive culture system for field-based round ponds | |
| CN111280114A (en) | Pond culture system capable of promoting material circulation | |
| CN201995423U (en) | Fecal-sewage draining system for livestock and poultry breeding machine | |
| CN111602625B (en) | Running water type ridge culture system | |
| CN111642425B (en) | Ecological culture system integrating pond culture and tail water treatment and operation maintenance method thereof | |
| CN215530920U (en) | Circulation aquaculture system and circulation aquaculture combined system | |
| CN205794314U (en) | A kind of ecologic type high efficient rice fish raises together with symbiosis facility |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |