CN111972235B - Rice and crab symbiosis management platform and detection method thereof - Google Patents
Rice and crab symbiosis management platform and detection method thereof Download PDFInfo
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- CN111972235B CN111972235B CN202010905951.9A CN202010905951A CN111972235B CN 111972235 B CN111972235 B CN 111972235B CN 202010905951 A CN202010905951 A CN 202010905951A CN 111972235 B CN111972235 B CN 111972235B
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
- A01K63/006—Accessories for aquaria or terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K79/00—Methods or means of catching fish in bulk not provided for in groups A01K69/00 - A01K77/00, e.g. fish pumps; Detection of fish; Whale fishery
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M29/00—Scaring or repelling devices, e.g. bird-scaring apparatus
- A01M29/16—Scaring or repelling devices, e.g. bird-scaring apparatus using sound waves
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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- 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
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Abstract
The invention discloses a rice and crab symbiosis management platform and a detection method thereof, relating to the technical field of rice and crab symbiosis management and detection; aiming at solving the problems of river crab capture and crab shell detection; the experimental ridge area is characterized by comprising experimental ridge areas, temporary raising ponds are arranged at four corners of each experimental ridge area, fences are arranged on two sides of each experimental ridge area in an inserted mode, right-angled concave annular ditches are arranged between the four temporary raising ponds and close to the experimental ridge areas, baffles are inserted into four corners of each right-angled concave annular ditch, rice planting areas are arranged on the inner sides, close to the right-angled concave annular ditches, of the experimental ridge areas, confluence channels are arranged in the middle of the rice planting areas, planting ditches distributed equidistantly are arranged on two sides, close to the confluence channels, of the rice planting areas, and guide holes are formed in two sides of each two planting ditches located at two ends of the confluence channels. The river crab harvester intercepts adult river crabs through the intercepting component, so that the catching of people is facilitated, and the efficiency of harvesting the river crabs is improved.
Description
Technical Field
The invention relates to the technical field of rice and crab symbiosis management and detection, in particular to a rice and crab symbiosis management platform and a detection method thereof.
Background
With the continuous innovation of modern agricultural technology, agricultural planting and aquaculture are combined and reasonably matched, and the shallow water environment of a rice field is utilized to plant rice and simultaneously culture aquatic products. The aquatic products can eat pests and weeds in the rice field, and the excrement of the aquatic products can also provide nutrients for rice, so that a green cultivation and planting mode is formed. Particularly, the combination of the rice and the crabs, and the ecological breeding mode is not only beneficial to the sustainable development of the breeding, but also can produce high-quality and safe grains and aquatic products, and can increase the income of farmers.
Through search, the Chinese patent with the application number of CN201611038553.1 discloses a symbiotic cultivation method for rice and crabs; firstly, setting a temporary rearing pond; secondly, digging crab ditches and drainage ditches in the breeding rice fields; thirdly, planting rice; fourthly, preventing escaping from the wall; fifthly, treating the temporary rearing pond and the river crab seedling temporary rearing; sixthly, temporarily culturing and managing river crab seedlings; seventhly, temporarily culturing the river crab seedlings and then putting the river crab seedlings into a culture rice field for management.
The symbiotic cultivation method for rice and crabs in the patents has the following defects: when people harvest the river crabs, the river crabs are easy to run around, and the existing methods for catching the river crabs are all catching manually, which wastes time and labor.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a rice and crab symbiosis management platform and a detection method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a management platform for symbiosis of rice and crabs comprises a test ridge area, temporary culture ponds are arranged at four corners of the test ridge area, fences are arranged on two side edges of the test ridge area in an inserted mode, right-angled concave circular ditches are arranged between the test ridge area and four temporary culture ponds, baffles are inserted into the four corners of each right-angled concave circular ditch, a rice region is arranged on the inner side, close to the right-angled concave circular ditches, of the test ridge area, a confluence channel is arranged in the middle of the rice region, planting ditches are distributed at equal intervals on two sides, close to the confluence channel, of the rice region, guide holes are formed in two sides of each two planting ditches at two ends of the confluence channel, an inclined block is inserted into one end, close to the right-angled concave circular ditches, the same intercepting driving mechanism is arranged on two side edges, close to the space between the two planting ditches, of the test ridge area, and an intercepting component is arranged in the intercepting driving mechanism, and a crab shell detection mechanism is arranged on one side of the test ridge area close to the space between the two temporary rearing ponds, and a U-shaped annular ditch is arranged on the outer wall of the top of the test ridge area.
Preferably: the intercepting driving mechanism comprises a steel wire fixing rope, a limiting block, a first rope winding roller, a first fixing frame, a side gear, a spur gear, a speed reducing motor, a second fixing frame, a second rope winding roller, a limiting fixing frame and a steel wire guide rope, the first fixing frame and the second fixing frame are respectively arranged on two sides of a test ridge area, and the first rope winding roller and the second rope winding roller are respectively fixed on the inner walls of the two sides of the first fixing frame and the second fixing frame through bearings.
Further: the limiting block is arranged on the inner wall of one side of the first fixing frame, the limiting fixing frame is arranged on the inner walls of the two sides of the second fixing frame, a limiting joint hole is formed in one side of the limiting fixing frame, a threaded adjusting ring is arranged on one side of the limiting joint hole, and the steel wire fixing rope is arranged on one side, opposite to the limiting block and the limiting fixing frame, of the limiting fixing frame.
On the basis of the scheme: on gear motor was fixed in one side outer wall of first mount through the support, the one end of first wire winding roller was provided with the pivot, the side gear cup jointed in the one end of pivot, the spur gear cup jointed on gear motor's output shaft, spur gear and side gear intermeshing, steel wire conduction rope both ends twine respectively on the circumference of first wire winding roller and second wire winding roller, the interception subassembly cup joints on steel wire conduction rope and steel wire fixed rope through rope lock subassembly and L type connecting plate.
The better scheme in the scheme is as follows: the rope lock assembly comprises a U-shaped limiting block, an arc-shaped supporting block, two nuts and two screw rods, the U-shaped limiting block is connected to the steel wire transmission rope in a clamped mode, the arc-shaped supporting block is sleeved at two ends of the bottom of the U-shaped limiting block, the arc-shaped supporting block and the U-shaped limiting block form sliding fit, the two screw rods are arranged on two end faces of the bottom of the U-shaped limiting block respectively, and the two nuts are sleeved on the screw rods respectively through threads.
As a further scheme of the invention: the intercepting component comprises a telescopic rod, two Y-shaped rods, an intercepting plate, two clamping seats, two clamping blocks and an intercepting net, the top end of the telescopic rod is connected to the bottom end of the rope lock component through two connecting columns, the two Y-shaped rods are arranged on the outer walls of the two sides of the bottom of the telescopic rod respectively, the intercepting plate is arranged on the outer wall of the bottom of the telescopic rod, the two clamping seats are arranged on the outer walls of the two sides of the bottom of the intercepting plate, the two clamping blocks are clamped in the two clamping seats respectively, and the intercepting net is arranged on the outer wall of the same side of the two clamping blocks.
Meanwhile, the crab shell detection mechanism comprises a machine base, a crab shell smashing assembly, a material guide plate, a graphite furnace and a material containing box, the machine base is arranged on one side of the top of the test ridge area, the crab shell smashing assembly is arranged on one side of the top of the machine base, the material guide plate is arranged on the top of the machine base close to one side of the crab shell smashing assembly, the material containing box is arranged on the outer wall of the top of the machine base close to the lower portion of the material guide plate, and the graphite furnace is arranged on the outer wall of the top of the machine base.
As a preferable aspect of the present invention: the crab shell crushing component comprises a rolling roller, a servo motor, two mounting seats, two L-shaped supporting blocks, a bearing plate, two inclined grooves, a guide groove, an arc-shaped grinding groove and two clamping grooves, wherein the two mounting seats are arranged on two sides of the top of a machine base, the rolling roller is fixed on the outer wall of one side between the two mounting seats through a bearing, the servo motor is fixed on the outer wall of one side of one of the mounting seats through a support, an output shaft of the servo motor is connected with one end of the rolling roller through a connecting shaft, the two inclined grooves are respectively clamped on the outer walls of the opposite sides of the two mounting seats, the bearing plate is arranged on the outer wall between the two mounting seats, the two clamping grooves are respectively arranged on the outer wall of one side of the bottom of the bearing plate, the arc-shaped grinding groove is arranged on one side of the top of the bearing plate, the guide groove is arranged on the top of one side of the bearing plate close to the arc-shaped grinding groove, and the two L-shaped supporting blocks are clamped in the two clamping grooves, and the two L-shaped supporting blocks are mutually attached to the two inclined grooves.
And simultaneously, the top of the one side that test ridge district is close to the concave type annular ditch in right angle is provided with inorganic matter sampling mechanism, and inorganic matter sampling mechanism includes the electronic slide rail of arc, the ball slider, the air sampler, the handle, two flexible fixed plates, the receiving flask, soil collection shovel and flexible post, the electronic slide rail of arc sets up in the top in test ridge district, and ball slider sliding connection is in the top of the electronic slide rail of arc, the air sampler sets up in the top of ball slider, two flexible fixed plates all accomodate in one side of ball slider, flexible post and receiving flask all set up on one side of two flexible fixed plate tops, soil collection shovel sets up in the bottom of flexible post, soil collection shovel is connected through the pipe with the receiving flask, the handle welds in the top of flexible post.
A rice and crab symbiosis detection method comprises the following steps:
s1: putting the crab shell fragments in the material containing box into a grinder to be ground into powder;
s2: putting 1g of crab shell powder into a 150ml beaker, adding 20ml of concentrated nitric acid into the beaker, covering a sealing cover, and moving the beaker to an alcohol lamp for heating digestion;
s3: heating until the volume of the digestive juice is 2-3ml, adding 2-3 drops of hydrogen peroxide, and continuing heating until the nitric acid is completely removed, so that the digestive juice is colorless and transparent or light yellow;
s4: stopping heating, standing and cooling the beaker of the digestive juice, and transferring all the cooled digestive juice into a volumetric cup;
s5: taking a beaker, accurately measuring a certain amount of lead standard solution, wherein the proportioning concentration is 0, 10, 20, 40, 60 and 80 ng/ml;
s6: moving the proportioned lead solution to a graphite furnace for absorbance determination, and drawing a plurality of determined absorbance values and lead solution concentration values as a standard curve of a unitary linear regression equation, wherein the concentration is used as a horizontal coordinate, and the absorbance is used as a vertical coordinate;
s7: taking 20 mu l of cooled digestive juice, moving the digestive juice into a graphite furnace, measuring the absorbance value of the digestive juice, and bringing the absorbance value into a standard curve to obtain the content of lead in the digestive juice, thereby obtaining the detection of the content of lead elements in crab shells in the rice and crab symbiotic environment;
s8: the ball sliding block slides to a specified position close to the right-angle concave annular groove by starting the arc-shaped sliding rail, the length of the soil collection shovel is lengthened through the telescopic column, and the end part of the soil collection shovel is immersed into the right-angle concave annular groove by downwards pressing the handle, so that the soil collection is completed; when the soil is immersed in the soil collecting shovel, water in the soil is led into the collecting bottle on one side through the guide pipe, and water collection is completed; in the sliding process of the ball sliding block, the air collector above the ball sliding block can effectively collect the air around the test ridge area, and the air collection is completed;
s9: the collected water, soil and air are sent to a detection department for inspection, and the environmental conditions of the test ridge area of the symbiosis of the rice and the crabs can be effectively obtained.
The invention has the beneficial effects that:
1. according to the management platform for rice and crab symbiosis and the detection method thereof, the intercepting component can be pulled back to the other side from one side of the test ridge area by arranging the steel wire fixing rope, the limiting block, the first rope winding roller, the first fixing frame, the side gear, the spur gear, the speed reducing motor, the second fixing frame, the second rope winding roller, the limiting fixing frame and the steel wire guide rope, so that river crabs in the rice planting area are intercepted into the right-angled concave circular ditch, people can conveniently catch the river crabs, the river crab harvesting efficiency is improved, and the management efficiency of the whole device is improved.
2. According to the rice and crab symbiotic management platform and the detection method thereof, the height of the interception plate is adjusted through the telescopic rods, the degree of freedom of interception of the interception plate is improved, meanwhile, the interception net can be assembled, disassembled and replaced through the clamping blocks clamped in the clamping seats, the cleaning and using efficiency of the interception net are facilitated, and when two Y-shaped rods collide with rice rods, certain sound can be emitted, the effect of driving river crabs is achieved, and the interception net can be conveniently and effectively intercepted.
3. According to the management platform for rice and crab symbiosis and the detection method thereof, the grinding roller, the servo motor, the two mounting seats, the two L-shaped supporting blocks, the bearing plate, the two inclined grooves, the guide chute, the arc grinding groove and the two clamping grooves are arranged, so that the grinding quality of crab shells is promoted, the collection of crab shell grinding fragments is facilitated, and the crab shell detection efficiency is promoted.
4. According to the rice and crab symbiotic management platform and the detection method thereof, when river crabs are driven and intercepted into the U-shaped annular ditch, the river crabs can be effectively fished by the fishing tool, and the problem of incomplete fishing caused by the problem of the internal structure of the right-angle concave annular ditch is solved.
5. According to the management platform and the detection method for rice-crab symbiosis, chemical impurity removal treatment is carried out on crab shell grinding fragments, the solution is placed in a graphite furnace, the absorption value of lead is measured, and is compared with the standard absorption value of lead, so that the work of detecting the lead element in the crab shells during rice-crab symbiosis is completed, the rice-crab symbiosis environment can be periodically perfected according to the detection result, and the safety and high yield of rice-crab symbiosis are effectively ensured.
6. According to the management platform for the symbiosis of rice and crabs and the detection method thereof, the arc-shaped electric slide rails, the ball slide blocks, the air sampler, the handle, the two telescopic fixing plates, the collecting bottle, the soil collecting shovel and the telescopic column are arranged, so that the collection of water, soil and air in a test ridge area is effectively promoted, the environmental condition of the test ridge area for the symbiosis of rice and crabs can be effectively obtained, and the improvement of environmental elements in the test ridge area is effectively promoted.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of a first partial configuration of the intercept drive mechanism of the present invention;
FIG. 4 is a second partial structural view of the intercepting drive mechanism of the present invention;
FIG. 5 is a schematic structural diagram of the intercepting component of the present invention;
FIG. 6 is a schematic diagram of an exploded structure of the intercepting component of the present invention;
FIG. 7 is a schematic structural view of the crab shell detection mechanism of the present invention;
FIG. 8 is a schematic view of the construction of the crab shell crushing assembly according to the present invention;
FIG. 9 is a schematic view of the structure of the inorganic sampling mechanism according to the present invention;
FIG. 10 is a schematic view of a partial structure of the inorganic sampling mechanism according to the present invention;
FIG. 11 is a schematic view of the U-shaped ring groove of the present invention.
In the figure: 1-test ridge area, 2-temporary culture pond, 3-fence, 4-rice planting area, 5-planting ditch, 6-inclined block, 7-right angle concave ring ditch, 8-baffle, 9-diversion hole, 10-confluence channel, 11-interception driving mechanism, 12-crab shell detection mechanism, 13-steel wire fixing rope, 14-limiting block, 15-first rope winding roller, 16-first fixing frame, 17-side gear, 18-spur gear, 19-speed reduction motor, 20-second fixing frame, 21-second rope winding roller, 22-limiting fixing frame, 23-steel wire conduction rope, 24-rope lock component, 25-telescopic rod, 26-Y-shaped rod, 27-interception plate, 28-U-shaped limiting block, 29-arc-shaped abutting block, 30-nut, 31-screw, 32-clamping seat, 33-clamping block, 34-intercepting net, 35-base, 36-rolling roller, 37-servo motor, 38-guide plate, 39-graphite furnace, 40-material containing box, 41-mounting seat, 42-L type supporting block, 43-bearing plate, 44-inclined groove, 45-guide groove, 46-arc grinding groove, 47-clamping groove, 48-U type annular groove, 49-inorganic substance sampling mechanism, 50-arc electric slide rail, 51-ball slide block, 52-air sampler, 53-handle, 54-telescopic fixing plate, 55-collecting bottle, 56-soil collecting shovel and 57-telescopic column.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
A management platform for rice and crab symbiosis, which comprises a test ridge area 1 as shown in figure 1-2, temporary rearing ponds 2 are arranged at four corners of the test ridge area 1, and the two sides of the test ridge area 1 are respectively provided with a fence 3 in an inserted manner, a right-angle concave annular ditch 7 is arranged between the test ridge area 1 and the four temporary rearing ponds 2, baffle plates 8 are respectively inserted in the four corners of the right-angle concave annular ditch 7, the inner side of the test ridge area 1 close to the right-angled concave annular ditch 7 is provided with a rice planting area 4, the middle part of the rice planting area 4 is provided with a confluence channel 10, planting furrows 5 are equidistantly distributed on two sides of the rice planting area 4 close to the confluence channel 10, each planting furrow 5 is perpendicular to the confluence channel 10, two sides of each two planting furrows 5 at two ends of the confluence channel 10 are respectively provided with a flow guide hole 9, and one end of each planting furrow 5 close to the right-angled concave annular furrow 7 is spliced with an inclined block 6; the river crabs can effectively climb out of the right-angle concave circular ditches 7 to enter the rice planting areas 4 for foraging, the test ridge area 1 is provided with the same intercepting driving mechanism 11 close to two sides between the two planting ditches 5, an intercepting component is arranged in the intercepting driving mechanism 11, and the test ridge area 1 is provided with a crab shell detection mechanism 12 close to one side between the two temporary culture ponds 2. When in use, river crab seedlings are put into the four temporary rearing ponds 2 of the test ridge area 1 in advance for cultivation, when the river crab seedlings are slightly bigger, the river crabs in the temporary rearing ponds 2 are put into the right-angled concave annular ditch 7, a layer of sand is accumulated at the bottom of the temporary rearing ponds, rice which is distributed at equal distance is planted in the planting ditch 5 in the rice planting area 4, when the river crabs are put in, the baffle 8 in the right-angled concave annular ditch 7 is taken out, meanwhile, irrigation water required by symbiotic rice and crab is introduced into the converging channel 10 of the rice planting area 4, when the river crabs are foraged at night, the river crabs can climb into the rice planting area 4 for foraging through the inclined block 6, and can effectively clean plankton and aquatic plants in the rice planting area 4, the efficiency and the quality of rice planting are greatly improved, and the river crabs are foraged in the rice planting area 4, so that the growth safety and no pollution of the river crabs are ensured, when the river crabs reach the harvesting season, the intercepting driving mechanism 11 can drive the intercepting component to slide from one side of the test ridge area 1 to the other side, and the passing river crabs are driven into the right-angled concave annular ditch 7, so that the river crabs can be conveniently grabbed by people, the river crab harvesting efficiency is improved, and meanwhile, the crab shell detection mechanism 12 is arranged on the test ridge area 1, and the lead element content in the sampled crab shells of the river crabs can be effectively detected.
The river crab can be conveniently and effectively intercepted, and the river crab harvesting efficiency is improved; as shown in fig. 3-6, the intercepting driving mechanism 11 includes a steel wire fixing rope 13, a limiting block 14, a first rope winding roller 15, a first fixing frame 16, a side gear 17, a spur gear 18, a speed reduction motor 19, a second fixing frame 20, a second rope winding roller 21, a limiting fixing frame 22 and a steel wire transmission rope 23, the first fixing frame 16 and the second fixing frame 20 are respectively placed at two sides of the test ridge area 1, the first rope winding roller 15 and the second rope winding roller 21 are respectively fixed on two inner walls of the first fixing frame 16 and the second fixing frame 20 through bearings, the limiting block 14 is welded on one inner wall of the first fixing frame 16, the limiting fixing frame 22 is fixed on two inner walls of the second fixing frame 20 through threads, a limiting clamping hole is formed at one side of the limiting fixing frame 22, a threaded adjusting ring is arranged at one side of the limiting clamping hole, the steel wire fixing rope 13 is fixed on one side of the limiting block 14 opposite to the limiting fixing frame 22 through bolts, gear motor 19 is fixed in on one side outer wall of first mount 16 through the support, there is the pivot first wire winding roller 15's one end through threaded connection, side gear 17 cup joints the one end in the pivot, spur gear 18 cup joints on gear motor 19's output shaft, spur gear 18 and side gear 17 intermeshing, 23 both ends of steel wire conduction rope twine respectively on first wire winding roller 15 and second wire winding roller 21's circumference, steel wire conduction rope 23 passes spacing joint downthehole, the interception subassembly cup joints on steel wire conduction rope 23 and steel wire fixed rope 13 through rope lock subassembly 24 and L type connecting plate. When the device is used, the four baffles 8 are respectively placed at two ends of the right-angled concave annular ditch 7, the first fixing frame 16 and the second fixing frame 20 are respectively placed at two sides of the test ridge area 1, the steel wire fixing rope 13 is fixed between the limiting block 14 and the limiting fixing frame 22, the steel wire conducting rope 23 is fixed between the first rope winding roller 15 and the second rope winding roller 21, the steel wire fixing rope 13 and the steel wire conducting rope 23 are straightened, the intercepting component is sleeved on the steel wire fixing rope 13 and the steel wire conducting rope 23 close to the second fixing frame 20 through the rope locking component 24 and the L-shaped connecting plate, the L-shaped connecting plate slides on the steel wire fixing rope 13, the rope locking component 24 and the intercepting component thereof are fixed on the steel wire conducting rope 23, the speed reducing motor 19 is started, the speed reducing motor 19 drives the spur gear 18 to rotate, and further drives the rotating shaft on the side gear 17 to rotate, so that the steel wire conducting rope 23 is wound to one side of the first fixing frame 16, therefore, the intercepting component can be pulled back to the other side from one side of the test ridge area 1, and the river crabs in the rice planting area 4 are intercepted in the right-angled concave annular ditch 7, so that the catching of people is facilitated, and the river crab harvesting efficiency is improved.
In order to promote the fixing effect between the interception member and the wire conducting rope 23; as shown in fig. 5, the rope lock assembly 24 includes a U-shaped stopper 28, an arc-shaped abutting block 29, two nuts 30 and two screws 31, the U-shaped stopper 28 is connected to the steel wire conducting rope 23 in a clamped manner, the arc-shaped abutting block 29 is sleeved on the two ends of the bottom of the U-shaped stopper 28, the arc-shaped abutting block 29 and the U-shaped stopper 28 form a sliding fit, the two screws 31 are welded on the two end faces of the bottom of the U-shaped stopper 28 respectively, and the two nuts 30 are sleeved on the screws 31 through threads respectively. During the use, block U type stopper 28 on steel wire conduction rope 23 to through rotatory two nuts 30, make the arc support 29 top arcwall face and the laminating of steel wire conduction rope 23, thereby effectively promoted the fixed effect between its bottom interception subassembly and the steel wire conduction rope 23.
In order to effectively intercept river crabs distributed in the rice planting area 4; as shown in fig. 5 and 6, the intercepting component includes a telescopic rod 25, two Y-shaped rods 26, a blocking plate 27, two clamping seats 32, two clamping blocks 33 and an intercepting net 34, the top end of the telescopic rod 25 is connected to the bottom end of the rope lock component 24 through two connecting columns, the two Y-shaped rods 26 are respectively fixed on the outer walls of the two sides of the bottom of the telescopic rod 25 through bolts, preferably, the two Y-shaped rods 26 are made of aluminum alloy, the thickness of the two rod portions of the Y-shaped rods 26 is smaller than that of the root portions of the Y-shaped rods, the blocking plate 27 is welded on the outer wall of the bottom of the telescopic rod 25, the two clamping seats 32 are welded on the outer walls of the two sides of the bottom of the blocking plate 27, the two clamping blocks 33 are respectively clamped in the two clamping seats 32, and the intercepting net 34 is welded on the outer walls of the same side of the two clamping blocks 33. During the use, accessible telescopic link 25 carries out height control to interception board 27 to the degree of freedom of interception board 27 has been improved, the form of intercepting net 34 accessible fixture block 33 joint in cassette 32 is loaded and unloaded and is changed simultaneously, the washing and the availability factor of intercepting net 34 have been promoted, simultaneously when interception board 27 is at the removal in-process, two Y type poles 26 of its top can send certain sound when colliding the rice pole, and river crab is higher to the sound sensitivity, consequently, played the effect of driveing river crab, made things convenient for intercepting net 34 to carry out effective interception to it, improved the efficiency of interception.
In order to effectively crush and grind the shells of the river crabs, so that the measurement of lead elements in the shells is promoted; as shown in fig. 7-8, the crab shell detection mechanism 12 includes a base 35, a crab shell crushing assembly, a material guide plate 38, a graphite furnace 39 and a material containing box 40, wherein the base 35 is disposed on one side of the top of the test ridge region 1, the crab shell crushing assembly is fixed on one side of the top of the base 35 through a bolt, the material guide plate 38 is fixed on the top of the base 35 near one side of the crab shell crushing assembly through a bolt, the material containing box 40 is disposed on the outer wall of the top of the base 35 near the lower portion of the material guide plate 38, and the graphite furnace 39 is fixed on the outer wall of the top of the base 35 through a bolt.
The crab shell crushing component comprises a grinding roller 36, a servo motor 37, two mounting seats 41, two L-shaped supporting blocks 42, a bearing plate 43, two inclined grooves 44, a guide groove 45, an arc-shaped grinding groove 46 and two clamping grooves 47, wherein the two mounting seats 41 are fixed on two sides of the top of a machine base 35 through bolts, the grinding roller 36 is fixed on the outer wall of one side between the two mounting seats 41 through a bearing, the servo motor 37 is fixed on the outer wall of one side of one of the mounting seats 41 through a bracket, the output shaft of the servo motor 37 is connected with one end of the grinding roller 36 through a connecting shaft, the two inclined grooves 43 are respectively clamped on the outer walls of the two opposite sides of the two mounting seats 41, the bearing plate 43 is arranged on the outer wall between the two mounting seats 41, the two clamping grooves 47 are respectively arranged on the outer wall of one side of the bottom of the bearing plate 43, the arc-shaped grinding groove 46 is arranged on one side of the top of the bearing plate 43 close to the arc-shaped grinding groove 46, the two L-shaped supporting blocks 42 are clamped in the two clamping grooves 47, and the two L-shaped supporting blocks 42 are attached to the two inclined grooves 44. When in use, two crabs are randomly taken out from the right-angled concave circular ditch 7, crab shells of the crabs are taken down and placed into the arc-shaped grinding groove 46, meanwhile, the bearing plate 43 is placed on the inclined groove 44 at one side opposite to the two mounting seats 41, the bearing plate 43 is in a horizontal state through the mode that the two L-shaped supporting blocks 42 are clamped in the two clamping grooves 47 of the bearing plate 43, the servo motor 37 is started to drive the grinding roller 36 to rotate, the rotary grinding roller 36 promotes the comprehensive grinding of the crab shells in the arc-shaped grinding groove 46, after the grinding is finished, the servo motor 37 is closed, the two L-shaped supporting blocks 42 are taken down, and at the moment, the grinding fragments of the crab shells in the arc-shaped grinding groove 46 at the top of the bearing plate 43 fall into the material containing box 40 from the guide groove 45 in an inclined mode, so that the grinding quality of the crab shells is promoted, the collection of the grinding fragments of the crab shells is also facilitated, and the detection efficiency of the crab shells is promoted, and then, carrying out chemical impurity removal treatment on the crab shell grinding fragments, putting the solution into a graphite furnace 39, measuring the lead absorption value of the solution, and comparing the lead absorption value with the standard lead absorption value, thereby completing the work of detecting lead elements in the crab shells during the symbiosis of rice and crabs.
In the embodiment, when the river crab cultivation device is used, river crab seedlings are placed in the four temporary culture ponds 2 of the test field ridge area 1 in advance for cultivation, when the river crab seedlings are slightly bigger, the river crabs in the temporary culture ponds 2 are put into the right-angle concave annular ditch 7, a layer of sand is accumulated at the bottom of the temporary culture ponds, rice which is distributed at equal distance is planted in the planting ditches 5 in the rice planting area 4, when the river crabs are put in, the baffles 8 in the right-angle concave annular ditch 7 are taken out, then irrigation water required by symbiosis of the rice crabs is introduced into the confluence channel 10 of the rice planting area 4, when the river crabs are foraged at night, the river crabs can climb into the rice planting area 4 through the inclined blocks 6 for foraging, when the river crabs reach the harvest season, the four baffles 8 are respectively placed at two ends of the right-angle concave annular ditch 7, the first fixing frame 16 and the second fixing frame 20 are respectively placed at two sides of the test field ridge area 1, and the steel wire fixing ropes 13 are fixed between the limiting blocks 14 and the limiting fixing frame 22, the steel wire transmission rope 23 is fixed between the first rope winding roller 15 and the second rope winding roller 21, the steel wire fixing rope 13 and the steel wire transmission rope 23 are straightened, the intercepting component is sleeved on the steel wire fixing rope 13 and the steel wire transmission rope 23 close to the second fixing frame 20 through the rope lock component 24 and the L-shaped connecting plate, the L-shaped connecting plate slides on the steel wire fixing rope 13, the rope lock component 24 and the intercepting component are fixed on the steel wire transmission rope 23, the speed reducing motor 19 is started, the speed reducing motor 19 drives the spur gear 18 to rotate, the rotating shaft on the side gear 17 is further driven to rotate, the steel wire transmission rope 23 is wound towards one side of the first fixing frame 16, the intercepting component can be pulled back to the other side from one side of the test ridge area 1, the river crabs in the rice planting area 4 are intercepted in the right-angle concave annular ditch 7, in the intercepting process, the height of the intercepting plate 27 can be adjusted through the telescopic rod 25, the intercepting freedom degree of the intercepting plate 27 is improved, meanwhile, when the intercepting plate 27 moves, two Y-shaped rods 26 above the intercepting plate can make a certain sound when colliding with rice straws, the action of driving river crabs is achieved, the intercepting net 34 is convenient to effectively intercept the river crabs, when lead element detection needs to be carried out on crab shells, one crab shell is randomly taken out from the right-angle concave annular ditch 7 and taken down and put into the arc-shaped grinding groove 46, meanwhile, the bearing plate 43 is placed on the inclined groove 44 on the opposite side of the two mounting bases 41, the bearing plate 43 is in a horizontal state by the mode that the two L-shaped supporting blocks 42 are clamped in the two clamping grooves 47 of the bearing plate 43, the servo motor 37 is started to drive the rolling roller 36 to rotate, the rotating rolling roller 36 promotes the crab shells to be comprehensively ground in the arc-shaped grinding groove 46, and after grinding is finished, the servo motor 37 is closed, two L-shaped supporting blocks 42 are taken down, grinding fragments of crab shells in arc-shaped grinding grooves 46 at the top of a bearing plate 43 fall into a material containing box 40 from a guide groove 45 in an inclined mode, so that the smashing and the collection of the crab shells are promoted, then, the chemical impurity removal treatment is carried out on the crab shell grinding fragments, the solution is placed into a graphite furnace 39, the lead absorption value of the solution is measured, meanwhile, the lead absorption value is compared with the standard lead absorption value, the work of lead element detection in the crab shells during rice and crab symbiosis is completed, therefore, the rice and crab symbiosis environment can be periodically perfected according to the detection result, and the safety and high yield of the rice and crab symbiosis are effectively guaranteed.
Example 2:
a symbiotic management platform for rice and crabs, as shown in fig. 9-10, in order to effectively promote the sampling detection of the environment in the test ridge area 1, the following improvements are made on the basis of the embodiment 1: the top of one side, close to the right-angled concave annular groove 7, of the test ridge area 1 is provided with an inorganic matter sampling mechanism 49, the inorganic matter sampling mechanism 49 comprises an arc-shaped electric slide rail 50, a ball slide block 51, an air sampler 52, a handle 53, two telescopic fixing plates 54, a collecting bottle 55, a soil collecting shovel 56 and a telescopic column 57, the arc-shaped electric slide rail 50 is fixed at the top of the test ridge area 1 through a fixing column, the ball slide block 51 is connected to the top of the arc-shaped electric slide rail 50 in a sliding manner, the air sampler 52 is fixed at the top of the ball slide block 51 through a bolt, the two telescopic fixing plates 54 are both contained at one side of the ball slide block 51, the telescopic column 57 and the collecting bottle 55 are both fixed on one side of the tops of the two telescopic fixing plates 54 through threads, the soil collecting shovel 56 is fixed at the bottom end of the telescopic column 57 through a thread, and the soil collecting shovel 56 is connected with the collecting bottle 55 through a guide pipe, the handle 53 is welded to the top end of the telescopic column 57; when the device is used, the length of the soil collecting shovel 56 is lengthened through the telescopic column 57, the handle 53 is pressed downwards, the end part of the soil collecting shovel 56 is immersed into the right-angle concave annular ditch 7, at the moment, the soil is extruded into the soil collecting shovel 56, the handle 53 is lifted to take out the soil, during the period, moisture in the soil can be led into the collecting bottle 55 on one side through the guide pipe, so that simultaneous collection of water and soil is achieved, the efficiency of water and soil collection is improved, meanwhile, air around the test ridge area 1 can be effectively collected through the air collector 52, finally, the collected water, soil and air are sent to a detection department for inspection, the environmental condition of the test ridge area 1 with symbiosis of rice and crabs can be effectively obtained, and the improvement of the environmental elements of the test ridge area 1 is effectively promoted.
Example 3:
a rice and crab symbiotic management platform, as shown in fig. 11, for solving the problem of difficult crab collection in a right-angled concave circular ditch 7; the present embodiment is modified from embodiment 1 as follows: preferably, the outer wall of the top of the test ridge region 1 is provided with a U-shaped annular ditch 48, when river crabs are driven and intercepted into the U-shaped annular ditch 48, the river crabs can be effectively fished by a fishing tool, and the problem of incomplete fishing caused by the problem of the internal structure of the right-angle concave annular ditch 7 is solved.
A rice and crab symbiosis detection method comprises the following steps:
s1: putting the crab shell fragments in the material containing box 40 into a grinder and grinding into powder;
s2: putting 1g of crab shell powder into a 150ml beaker, adding 20ml of concentrated nitric acid into the beaker, covering a sealing cover, and moving the beaker to an alcohol lamp for heating digestion;
s3: heating until the volume of the digestive juice is 2-3ml, adding 2-3 drops of hydrogen peroxide, and continuing heating until the nitric acid is completely removed, so that the digestive juice is colorless and transparent or light yellow;
s4: stopping heating, standing and cooling the beaker of the digestive juice, and transferring all the cooled digestive juice into a volumetric cup;
s5: taking a beaker, accurately measuring a certain amount of lead standard solution, wherein the proportioning concentration is 0, 10, 20, 40, 60 and 80 ng/ml;
s6: moving the proportioned lead solution to a graphite furnace 39 for absorbance determination, and drawing a plurality of determined absorbance values and lead solution concentration values as a standard curve of a unitary linear regression equation by taking the concentration as an abscissa and the absorbance as an ordinate;
s7: taking 20 mu l of cooled digestive juice, moving the digestive juice into a graphite furnace 39, measuring the absorbance value of the digestive juice, and bringing the absorbance value into a standard curve to obtain the content of lead in the digestive juice, thereby obtaining the detection of the content of lead in crab shells in the rice and crab symbiotic environment;
s8: by starting the arc-shaped slide rail 50, the ball slide block 51 slides to a specified position close to the right-angle concave annular groove 7, the length of the soil collection shovel 56 is lengthened through the telescopic column 57, and the handle 53 is pressed downwards, so that the end part of the soil collection shovel 56 is immersed into the right-angle concave annular groove 7, and the soil collection is completed; when the soil is immersed in the soil collecting shovel 56, the water in the soil is guided into the collecting bottle 55 on one side through the guide pipe, and the water collection is completed; in the sliding process of the ball sliding block 51, the air collector 52 above the ball sliding block can effectively collect the air around the test ridge area 1, and the air collection is completed;
s9: the collected water, soil and air are sent to a detection department for inspection, and the environmental conditions of the test ridge area 1 of the symbiotic rice and crabs can be effectively obtained.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. A rice and crab symbiotic management platform comprises a test ridge area (1) and is characterized in that temporary culture ponds (2) are arranged at four corners of the test ridge area (1), fences (3) are arranged on two sides of the test ridge area (1) in an inserted mode, a right-angle concave circular ditch (7) is formed between the test ridge area (1) and the four temporary culture ponds (2), baffles (8) are inserted into the four corners of the right-angle concave circular ditch (7), a rice planting area (4) is arranged on the inner side, close to the right-angle concave circular ditch (7), of the test ridge area (1), a confluence channel (10) is formed in the middle of the rice planting area (4), planting ditches (5) are arranged on two sides, close to the confluence channel (10), of the rice planting area (4) and distributed at equal intervals, guide holes (9) are formed in two sides of every two planting ditches (5) at two ends of the confluence channel (10), an inclined block (6) is inserted into one end of each planting ditch (5) close to the right-angled concave circular ditch (7), the two sides of the test ridge area (1) close to the space between the two planting ditches (5) are provided with the same intercepting driving mechanism (11), an intercepting component is arranged in the intercepting driving mechanism (11), a crab shell detecting mechanism (12) is arranged on one side of the test ridge area (1) close to the space between the two temporary rearing ponds (2), and a U-shaped circular ditch (48) is arranged on the outer wall of the top of the test ridge area (1); the intercepting driving mechanism (11) comprises a steel wire fixing rope (13), a limiting block (14), a first rope winding roller (15), a first fixing frame (16), a side gear (17), a spur gear (18), a speed reducing motor (19), a second fixing frame (20), a second rope winding roller (21), a limiting fixing frame (22) and a steel wire conducting rope (23), the first fixing frame (16) and the second fixing frame (20) are respectively placed on two sides of the test ridge area (1), and the first rope winding roller (15) and the second rope winding roller (21) are respectively arranged on the inner walls of two sides of the first fixing frame (16) and the second fixing frame (20); the limiting block (14) is arranged on the inner wall of one side of the first fixing frame (16), the limiting fixing frame (22) is arranged on the inner walls of two sides of the second fixing frame (20), one side of the limiting fixing frame (22) is provided with a limiting clamping hole, one side of the limiting clamping hole is provided with a threaded adjusting ring, and the steel wire fixing rope (13) is arranged on one side, opposite to the limiting block (14) and the limiting fixing frame (22); the speed reducing motor (19) is arranged on the outer wall of one side of the first fixing frame (16), a rotating shaft is arranged at one end of the first rope winding roller (15), a side gear (17) is sleeved at one end of the rotating shaft, a spur gear (18) is sleeved on an output shaft of the speed reducing motor (19), the spur gear (18) and the side gear (17) are meshed with each other, two ends of a steel wire transmission rope (23) are respectively wound on the circumferences of the first rope winding roller (15) and the second rope winding roller (21), and the intercepting component is sleeved on the steel wire transmission rope (23) and the steel wire fixing rope (13) through a rope lock component (24) and an L-shaped connecting plate; the rope lock assembly (24) comprises a U-shaped limiting block (28), an arc-shaped abutting block (29), two nuts (30) and two screw rods (31), the U-shaped limiting block (28) is clamped on the steel wire transmission rope (23), the arc-shaped abutting block (29) is sleeved on two ends of the bottom of the U-shaped limiting block (28), the arc-shaped abutting block (29) and the U-shaped limiting block (28) are in sliding fit, the two screw rods (31) are respectively arranged on two end faces of the bottom of the U-shaped limiting block (28), and the two nuts (30) are respectively arranged on the screw rods (31); the intercepting component comprises a telescopic rod (25), two Y-shaped rods (26), a blocking plate (27), two clamping seats (32), two clamping blocks (33) and an intercepting net (34), the top end of the telescopic rod (25) is connected to the bottom end of the rope lock component (24) through two connecting columns, the two Y-shaped rods (26) are arranged on the outer walls of the two sides of the bottom of the telescopic rod (25) respectively, the blocking plate (27) is arranged on the outer wall of the bottom of the telescopic rod (25), the two clamping seats (32) are arranged on the outer walls of the two sides of the bottom of the blocking plate (27), the two clamping blocks (33) are clamped in the two clamping seats (32) respectively, and the intercepting net (34) is arranged on the outer wall of the same side of the two clamping blocks (33).
2. The rice and crab symbiotic management platform according to claim 1, wherein the crab shell detection mechanism (12) comprises a base (35), a crab shell crushing assembly, a material guide plate (38), a graphite furnace (39) and a material containing box (40), the base (35) is arranged on one side of the top of the test ridge area (1), the crab shell crushing assembly is arranged on one side of the top of the base (35), the material guide plate (38) is arranged on the top of one side of the base (35) close to the crab shell crushing assembly, the material containing box (40) is arranged on the outer wall of the top of the base (35) close to the lower portion of the material guide plate (38), and the graphite furnace (39) is arranged on the outer wall of the top of the base (35).
3. The rice and crab symbiotic management platform according to claim 2, wherein the crab shell crushing assembly comprises a rolling roller (36), a servo motor (37), two mounting seats (41), two L-shaped supporting blocks (42), a bearing plate (43), two inclined grooves (44), a guide chute (45), an arc-shaped grinding groove (46) and two clamping grooves (47), the two mounting seats (41) are arranged on two sides of the top of the base (35), the rolling roller (36) is arranged on the outer wall of one side between the two mounting seats (41), the servo motor (37) is arranged on the outer wall of one side of one of the mounting seats (41), the output shaft of the servo motor (37) is connected with one end of the rolling roller (36) through a connecting shaft, the two inclined grooves (44) are respectively clamped on the outer walls of the opposite sides of the two mounting seats (41), the bearing plate (43) is arranged on the outer wall between the two mounting seats (41), two draw-in grooves (47) are opened respectively on loading board (43) bottom one side outer wall, and arc grinds groove (46) and opens in loading board (43) top one side, and baffle box (45) are opened and are close to the top that arc ground groove (46) one side in loading board (43), and two L type supporting shoes (42) joint are in two draw-in grooves (47), and two L type supporting shoes (42) laminate each other with two inclined grooves (44).
4. The rice and crab symbiotic management platform according to claim 1, wherein the top of one side of the test ridge region (1) close to the right-angled concave circular groove (7) is provided with an inorganic substance sampling mechanism (49), the inorganic substance sampling mechanism (49) comprises an arc-shaped electric slide rail (50), a ball slide block (51), an air sampler (52), a handle (53), two telescopic fixing plates (54), a collection bottle (55), a soil collection shovel (56) and a telescopic column (57), the arc-shaped electric slide rail (50) is arranged on the top of the test ridge region (1), the ball slide block (51) is slidably connected to the top of the arc-shaped electric slide rail (50), the air sampler (52) is arranged on the top of the ball slide block (51), the two telescopic fixing plates (54) are both accommodated on one side of the ball slide block (51), the telescopic column (57) and the collection bottle (55) are both arranged on one side of the tops of the two telescopic fixing plates (54), soil collection shovel (56) set up in the bottom of flexible post (57), and soil collection shovel (56) are connected through the pipe with receiving flask (55), and handle (53) weld in the top of flexible post (57).
5. A detection method of the rice and crab symbiotic management platform according to claim 4, characterized by comprising the following steps:
s1: putting the crab shell fragments in the material containing box (40) into a grinder to be ground into powder;
s2: putting 1g of crab shell powder into a 150ml beaker, adding 20ml of concentrated nitric acid into the beaker, covering a sealing cover, and moving the beaker to an alcohol lamp for heating digestion;
s3: heating until the volume of the digestive juice is 2-3ml, adding 2-3 drops of hydrogen peroxide, and continuing heating until the nitric acid is completely removed, so that the digestive juice is colorless and transparent or light yellow;
s4: stopping heating, standing and cooling the beaker of the digestive juice, and transferring all the cooled digestive juice into a volumetric cup;
s5: taking a beaker, accurately measuring a certain amount of lead standard solution, wherein the proportioning concentration is 0, 10, 20, 40, 60 and 80 ng/ml;
s6: moving the proportioned lead solution to a graphite furnace (39) for absorbance determination, and drawing a plurality of determined absorbance values and lead solution concentration values as a standard curve of a unitary linear regression equation by taking the concentration as an abscissa and the absorbance as an ordinate;
s7: taking 20 mu l of cooled digestive juice, moving the digestive juice into a graphite furnace (39), measuring the absorbance value of the digestive juice, and bringing the absorbance value into a standard curve to obtain the content of lead in the digestive juice, thereby obtaining the detection of the content of lead elements in crab shells in the rice and crab symbiotic environment;
s8: the ball sliding block (51) is slid to a specified position close to the right-angle concave annular groove (7) by starting the arc-shaped sliding rail (50), the length of the soil collection shovel (56) is lengthened through the telescopic column (57), and the handle (53) is used for pressing downwards, so that the end part of the soil collection shovel (56) is immersed into the right-angle concave annular groove (7), and the soil collection is completed; when the soil is immersed in the soil collecting shovel (56), water in the soil is guided into a collecting bottle (55) on one side through the guide pipe, and water collection is completed; in the sliding process of the ball sliding block (51), the air collector (52) above the ball sliding block can effectively collect the air around the test ridge area (1), and the air collection is completed;
s9: the collected water, soil and air are sent to a detection department for inspection, and the environmental conditions of the test ridge area (1) of the symbiosis of rice and crabs are effectively obtained.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1111714A1 (en) * | 1983-06-24 | 1984-09-07 | Специальное Проектно-Конструкторское Технологическое Бюро Республиканского Рыбопромышленного Объединения Северо-Западных Районов Минрыбхоза Рсфср | Apparatus for growing fish |
| CN203633331U (en) * | 2013-12-26 | 2014-06-11 | 朱广德 | Rice field crab breeding system |
| CN205455382U (en) * | 2015-12-31 | 2016-08-17 | 山东省淡水渔业研究院 | Breeding device of juvenile crab is cultivated in paddy field |
| CN209647048U (en) * | 2018-11-07 | 2019-11-19 | 王吉斌 | A kind of maintaining steel wire rope equipment with decontamination plant |
| CN109354198B (en) * | 2018-11-27 | 2022-05-06 | 海南大学 | Be applied to sewage purification device that eutrophic river flowed into sea mouth |
| CN110367159A (en) * | 2019-08-05 | 2019-10-25 | 皖西学院 | A kind of ecologically breeding river crabs system |
| CN111480604A (en) * | 2020-06-05 | 2020-08-04 | 江苏省淡水水产研究所 | Method for cultivating shrimps and crabs in rotation in green and efficient rice field co-farming mode |
-
2020
- 2020-09-01 CN CN202010905951.9A patent/CN111972235B/en active Active
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