CN214853675U - Formula field structure is bred in crayfish subregion based on net is prevented escaping by orientation - Google Patents

Formula field structure is bred in crayfish subregion based on net is prevented escaping by orientation Download PDF

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Publication number
CN214853675U
CN214853675U CN202120605797.3U CN202120605797U CN214853675U CN 214853675 U CN214853675 U CN 214853675U CN 202120605797 U CN202120605797 U CN 202120605797U CN 214853675 U CN214853675 U CN 214853675U
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net
crayfish
field
ring ditch
shrimp
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李力
曹凑贵
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Huazhong Agricultural University
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Huazhong Agricultural University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Abstract

The utility model relates to a crayfish subregion breed formula field structure based on net is prevented escaping to orientation, including the ring ditch and enclose the rice kind plant area that closes and form by the ring ditch the outer fringe all around of ring ditch is built and is built the ring ditch outer ridge the ring ditch inner edge all around is built and is built the ring ditch inner ridge, enclose on the ring ditch inner ridge and be equipped with the inner ridge net of preventing escaping, the inner ridge net of preventing escaping has a plurality of one-way shrimp inlets, the one-way shrimp direction of admitting into of shrimp inlet does by the ring ditch gets into the direction in rice kind plant area. The utility model provides a formula field structure is bred in cray subregion based on net is prevented escaping in orientation prevents escaping establishes the inner ridge through enclosing on the inner ridge of ring groove and prevents escaping the net and prevent escaping the net including the inner ridge and set up one-way shrimp inlet, can prescribe a limit to cray and breed meticulously in rice kind plant area, the unanimous one-tenth shrimp of output specification of being convenient for improves the quality of cray effectively.

Description

Formula field structure is bred in crayfish subregion based on net is prevented escaping by orientation
Technical Field
The utility model belongs to the technical field of the rice shrimp is makeed production altogether, concretely relates to formula field structure is bred in crayfish subregion based on net is prevented escaping by orientation.
Background
The rice and shrimp co-farming mode is a planting and breeding combination mode which improves a single planting mode of a conventional rice field into a three-dimensional ecological mode, namely crayfish is bred in the rice field during rice planting, the crayfish and rice grow in the rice field at the same time, the crayfish can deinsectize and weed, loosen the soil and increase the fertilizer for the rice field, the rice field can be used for crayfish to move, forage and avoid cold, and the crayfish and the rice field can be mutually beneficial to symbiosis and complement each other.
At present, a cultivation ditch mode is generally adopted for rice and shrimp joint cropping, namely an annular cultivation ditch is dug around a rice field for crayfish to move; the annular ditch cultivation mode has the following problems: (1) the crayfish breeding and the rice breeding are not fully crossed and coupled, and the seed breeding, the pest control and the disease damage control are not fully related and optimized; (2) the amount of the shrimps in the ditch can not be accurately counted, and the self-breeding shrimp fries in the ditch are mixed with newly thrown shrimp fries, so that the specification of the formed crayfish is irregular; (3) the culture mode is relatively extensive, fine culture cannot be performed, large-sized adult shrimps with consistent specifications are difficult to culture, and therefore economic benefit is low.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a formula field structure is bred in cray subregion based on net is prevented escaping in orientation can solve prior art's partial defect at least.
The utility model relates to a crayfish subregion breed formula field structure based on net is prevented escaping to orientation, including the ring ditch and enclose the rice kind plant area that closes and form by the ring ditch the outer fringe all around of ring ditch is built and is built the ring ditch outer ridge the ring ditch inner edge all around is built and is built the ring ditch inner ridge, enclose on the ring ditch inner ridge and be equipped with the inner ridge net of preventing escaping, the inner ridge net of preventing escaping has a plurality of one-way shrimp inlets, the one-way shrimp direction of admitting into of shrimp inlet does by the ring ditch gets into the direction in rice kind plant area.
In one embodiment, the outer ridge of the circular trench is surrounded by an outer ridge escape-proof net.
In one embodiment, the rice planting area comprises an upper field and a lower field, and the upper field and the lower field have a height drop.
In one embodiment, the height difference between the high-level field and the low-level field is within a range of 8 to 15 cm.
In one embodiment, the rice growing area has a feeding area in the form of a strip in the field.
In one embodiment, the width of the strip-shaped feeding area in the field is 1.2-1.8 m.
The utility model discloses following beneficial effect has at least:
the utility model provides a formula field structure is bred in cray subregion based on net is prevented escaping in orientation prevents escaping establishes the inner ridge through enclosing on the inner ridge of ring groove and prevents escaping the net and prevent escaping the net including the inner ridge and set up one-way shrimp inlet, can prescribe a limit to cray and breed meticulously in rice kind plant area, the unanimous one-tenth shrimp of output specification of being convenient for improves the quality of cray effectively.
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic cross-sectional view of a co-cultivated field according to an embodiment of the present invention;
fig. 2 is a schematic plan view of a co-cultivated field according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a crayfish subregion breed formula field structure based on net is prevented escaping to directional, include the ring ditch 3 and enclose by the ring ditch 3 and close the rice planting district 4 that forms ring ditch 3 outer fringe around of ring ditch is built and is had ring ditch outer ridge 1 ring ditch inner ridge 2 has been built to the inner edge all around of ring ditch 3, enclose on the ring ditch inner ridge 2 and be equipped with inner ridge anti-escape net 21, inner ridge anti-escape net 21 has a plurality of one-way shrimp entrances, the one-way shrimp entrance allow advance the shrimp direction do by ring ditch 3 gets into the direction of rice planting district 4.
The outer ridge 1 and the inner ridge 2 of the circular ditch are generally higher than the field blocks adjacent to the circular ditch 3. The inner ridge escape-preventing net 21 can adopt a plurality of support rods as a framework, the support rods are inserted on the inner ridge 2 of the annular trench and then can be installed on the inner ridge escape-preventing net 21, and the adjacent support rods can be connected through the horizontal connecting rods, so that the structural stability of the framework structure of the inner ridge escape-preventing net 21 can be improved, and the wind resistance performance is better.
The annular ditch inner ridge 2 is an annular ridge, the inner ridge escape-preventing nets 21 are obviously arranged in the full length direction of the annular ditch inner ridge 2, the one-way shrimp inlets can be uniformly arranged at intervals along the circumferential direction of the inner ridge escape-preventing nets 21, and the number of the one-way shrimp inlets can be determined according to the factors such as the area of the rice planting area 4, the area of the annular ditch 3, the feeding density of the crayfishes in the annular ditch 3 and the like. The one-way shrimp inlet arranged on the escape-proof net can allow crayfishes to enter the rice planting area 4 from the annular groove 3, but cannot allow crayfishes to enter the annular groove 3 from the rice planting area 4, the one-way shrimp inlet is widely applied to breeding equipment such as a shrimp catching cage, and the specific structure of the one-way shrimp inlet is not described herein.
As can be understood, the inner ridge escape-preventing net 21 can be provided with a working door so as to facilitate the personnel to enter and exit the rice planting area 4.
The crayfish subregion breed formula field structure based on net is prevented escaping to orientation that this embodiment provided sets up inner ridge through enclosing on the inner ridge 2 of the circular trench and prevents escaping net 21 and set up one-way shrimp inlet in inner ridge anti-escaping net 21, can inject the crayfish and carry out the breed that becomes more meticulous in rice kind district 4, is convenient for produce the unanimous one-tenth shrimp of specification, improves the quality of crayfish effectively.
Furthermore, an outer ridge escape-proof net 11 is arranged on the periphery of the outer ridge 1 of the circular trench, and the outer ridge escape-proof net 11 is not provided with a crayfish moving channel and is mainly used for preventing crayfish in the circular trench 3 from escaping from the co-operation field. Similarly, a working door may be provided on the outer ridge escape-preventing net 11 to facilitate the entry and exit of personnel.
Further optimizing the field structure, as shown in fig. 1 and 2, the rice planting area 4 comprises an upper field block 41 and a lower field block 42, and a height drop exists between the upper field block 41 and the lower field block 42. Wherein, the rice planting area 4 can be designed into a multi-stage structure or a structure with staggered heights according to requirements; in this embodiment, a secondary structure is formed by the high-position field block 41 and the low-position field block 42, which facilitates the arrangement of the rice planting area 4 when the corresponding requirements are met. In this embodiment, through carrying out the high low subregion setting with rice planting district 4, can increase the amount of exercise and the intensity of motion of cray, be favorable to the promotion of cray quality. In one embodiment, the height drop between the high field 41 and the low field 42 is in the range of 8-15 cm; in this embodiment, the height difference between the two secondary structures is about 10 cm. Since the depth of the annular groove 3 is relatively deep, the annular groove 3 may not adopt a stepped structure.
Further optimizing the field structure, as shown in fig. 2, a field strip-shaped feeding area 5 is arranged in the rice planting area 4, and the field strip-shaped feeding area 5 is used for feeding crayfishes, so that fine culture of the field crayfishes is facilitated; wherein, the crayfish is cultivated during the rice planting period, the strip-shaped feeding area 5 can be reserved when the crayfish is used as a planting field for field preparation, for example, shallow grooves are correspondingly formed on the surface of the field in the field preparation process, and can also be reserved in the rice planting area 4 for transplanting rice, for example, no rice transplanting is required in the target position. In one embodiment, the width of the field strip-shaped feeding area 5 is 1.2-1.8 m, and is further preferably controlled to be about 1.5 m; the strip-shaped field feeding area 5 is preferably located in the middle of the rice planting area 4, namely, passing through the center of the rice planting area 4, for example, for the rectangular rice planting area 4, the strip-shaped field feeding area 5 passes through the center of the rice planting area 4, and the length direction thereof is perpendicular to the long side of the rice planting area 4. The number of the strip-shaped field feeding areas 5 can be more than one, and a plurality of strip-shaped field feeding areas 5 can be arranged when the area of the rice planting area 4 is larger.
Particularly, in the scheme of arranging the rice planting area 4 in the high-low subarea, the field strip-shaped feeding area 5 is correspondingly divided into the high-level feeding belt and the low-level feeding belt which are communicated with each other, so that crayfishes can be guided to move by feeding the feeding belts in different areas, and the quality of the crayfishes is improved.
The following rice and shrimp co-farming method is carried out based on the directional escape-proof net-based crayfish partitioned cultivation type field structure, and roughly comprises the following processes:
completing the breeding of the crayfishes in the first stage in the co-cropping field (comprising the rice planting area 4 and the annular ditch 3) within 2-4 months, controlling water in the annular ditch 3 after the crayfishes in the first stage are harvested, and turning over the field and airing the rice planting area 4;
transplanting rice seedlings in the whole field in a rice planting area 4 in month 5, and reserving a field strip-shaped feeding area 5; wherein, the whole field rice transplanting process can be carried out at the bottom of 5 months, and a mechanical rice transplanting mode or an artificial rice transplanting mode can be adopted;
when the tillering stage of the rice is reached, the water level of the annular ditch 3 is filled and the water level of the field surface is controlled at a first water level; putting second-stage crayfish seedlings into the rice planting area 4, and performing rice and shrimp co-culture; feeding crayfish feed into the rice planting area 4 in the rice and shrimp joint cropping period; preferably, the first water level is not lower than the seedling roots; the second-stage crayfish fries thrown in the device are preferably in a regular and consistent specification, and the throwing density of the second-stage crayfish fries is 1800 per mu-2200 per mu; during the rice and shrimp joint cropping period, the rice planting area 4 is not sprayed with pesticide or fertilized to ensure the quality of the second-stage crayfishes, and the diseases, pests and weeds in the joint cropping field can be prevented and controlled by adopting an ecological green prevention and control means;
harvesting second-stage adult shrimps in 8 months; harvesting of second-stage adult shrimps is preferably carried out from 8 middle of the month to 8 months; preferably, adult shrimp capture is performed during the period from 9 o 'clock in the evening to 6 o' clock in the next morning, for example, large crayfish are picked up in the above-mentioned field strip feeding area 5;
after the second-stage adult shrimps are harvested, the operation of water control and field drying of the circular ditch 3 is carried out, and then the mature rice is harvested.
Wherein, according to the growth process of rice, the harvesting of rice can be generally carried out in the middle of 9 months. After the rice is harvested, preferably performing water-controlled drying and airing operation on the bottom of the circular ditch 3; after the circular trench 3 is dried in the sun, the node is generally in the beginning of 10 months, and the global sterilization and disinfection can be carried out on the circular trench 3 at the moment, specifically, the node can be realized by spreading quicklime in the circular trench 3 according to the sterilization standard; the leguminous crops are planted after the rice planting area 4 is subjected to rotary tillage and leveling, so that crop income can be further realized.
From 10 months to 2 months in the next year, the ring ditch 3 is kept in an anhydrous state as much as possible; in 2 months, the green pressing rotary tillage of leguminous crops is preferably carried out, and furthermore, EM bacteria and the like are applied to assist in composting before the rotary tillage.
Further preferably, the first-stage crayfish breeding specifically includes:
2, planting aquatic weeds in the annular ditch 3 in months, and adding water through the annular ditch 3 to control the water level of the field surface to be at a second water level; the above-mentioned aquatic weeds can be at least one of waterweed, eel grass and hydrilla verticillata, etc.; in one embodiment, the second water level is 18-25 cm, and is preferably controlled to be about 20 cm;
putting crayfish seedlings of the first period into the co-cropping field in due time according to the growth vigor of the waterweeds; preferably, the first-stage crayfish fries are thrown when the growth vigor of the aquatic weeds is good, and generally, the growth vigor of the aquatic weeds can reach a good state 20-30 days after the aquatic weeds are planted, so the first-stage crayfish fries can be released at the beginning of 3 months, and the throwing density can be controlled according to the conventional crayfish breeding density;
harvesting mature shrimps in the first period from the middle ten days of 4 months, and completely capturing the crayfish in the first period from the bottom of 4 months.
Further, after the first-stage crayfishes are all captured, the water control of the annular ditch 3 is carried out, the rice planting area 4 starts to be turned over and aired, the annular ditch 3 is aired, and the sterilization operation can be further carried out on the annular ditch 3; the above-mentioned operations of sunning the field and drying the furrow can be continued until 5 months of transplanting rice seedlings.
In an optional embodiment, during the period of transplanting seedlings in the whole field in 5 months, fish are put in the annular ditch 3, so that economic income can be further created; the fish to be stocked can be edible fish such as grass carp, and the stocking amount of the fish can be determined according to the area of the water area of the circular ditch 3.
At the end of 4 months, seedlings can be raised in the seedling bed, and the seedlings are transplanted to the rice planting area 4 after growing to a certain extent. In one embodiment, the medium indica late-maturing type seeds are selected, and the medium indica late-maturing type seeds have the advantages of strong tillering capacity, luxuriant growth, high yield, lodging resistance and the like.
Typically, the full tillering stage of rice is in late 6 months or in early 7 months. From transplanting to the full tillering stage of rice, the growing period of rice is about 1 month, and in the growing period of rice, on the premise of ensuring the normal growth of rice, the operations of fertilizing, spraying, drying in the sun and the like can be correspondingly carried out in advance, so that the quality of the second-stage crayfish is improved.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a crayfish subregion breed formula field structure based on net is prevented escaping to orientation, includes the ring ditch and encloses the rice planting district that closes by the ring ditch, the outer ridge of ring ditch has been built to the outer fringe all around of ring ditch, the inner ridge of ring ditch has been built to the inner edge all around of ring ditch, its characterized in that: an inner ridge anti-escape net is arranged on the inner ridge of the circular trench in a surrounding manner and is provided with a plurality of unidirectional shrimp inlets, and the direction of allowing the shrimps to enter the rice planting area from the circular trench is the direction of allowing the shrimps to enter the unidirectional shrimp inlets to enter the rice planting area.
2. The oriented escape-net-based crayfish zoned aquaculture type field structure of claim 1, wherein: and an outer ridge escape-preventing net is arranged around the outer ridge of the circular trench.
3. The oriented escape-net-based crayfish zoned aquaculture type field structure of claim 1, wherein: the rice planting area comprises a high-position field block and a low-position field block, and a height fall is formed between the high-position field block and the low-position field block.
4. The oriented escape-net-based crayfish zoned aquaculture type field structure of claim 3, wherein: the height fall between the high-level field and the low-level field is within the range of 8-15 cm.
5. The oriented escape-net-based crayfish zoned aquaculture type field structure of claim 1, wherein: the rice planting area is provided with a field strip-shaped feeding area.
6. The oriented escape-net-based crayfish zoned aquaculture type field structure of claim 5, wherein: the width of the field strip-shaped feeding area is 1.2-1.8 m.
CN202120605797.3U 2021-03-25 2021-03-25 Formula field structure is bred in crayfish subregion based on net is prevented escaping by orientation Active CN214853675U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115443866A (en) * 2022-10-08 2022-12-09 湖南宏硕生物科技有限公司 One-ditch two-plant three-plant circulating water-cleaning crab and rice symbiotic planting and breeding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115443866A (en) * 2022-10-08 2022-12-09 湖南宏硕生物科技有限公司 One-ditch two-plant three-plant circulating water-cleaning crab and rice symbiotic planting and breeding method

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