60results about How to "Increase the number of breeding" patented technology

The invention discloses a high-yield pollution-free breeding method of freshwater fish. The method includes the following steps that requirements for a breeding pond are met; the pond is filled with water, and water quality is adjusted; fish varieties are selected; fish varieties are sterilized; reasonable fish stocking is performed; fish varieties are bred; the water quality is controlled; after water is added into the pond every time, a certain amount of special fertilizer for aquaculture and saccharomycete are added into the breeding pond, and moderate fishing is performed. According to the method, due to sterilization and scientific breeding of the fish pond and the fish bodies, the using amount of medicine and artificial feed is effectively reduced, and the bred freshwater fishes are high in quality safety and free of pollution; due to the mixing breeding of the fish varieties living in different depths of water areas, the fishes are diversified in variety, space of the fish pond in different depths of water areas is effectively utilized, and not only is breeding number improved but also income of fishermen is increased due to orderly fishing according to batches.

The invention relates to a continuous shrimp aquaculture system, which comprises a first-stage aquaculture pool, a second-stage aquaculture pool, a third-stage aquaculture pool, a fourth-stage aquaculture pool, a fifth-stage aquaculture pool, a sixth-stage aquaculture pool, a transfer pipeline, a gate pipe, a water inlet pipe and a water discharge pipe, wherein the volume of the next stage of aquaculture pool is double of the former stage of aquaculture pool, and a fall difference exists between the bottom of the next stage of aquaculture pool and the bottom of the former stage of aquaculture pool. The continuous shrimp aquaculture system has the beneficial effects that the structure is simple, the operation is convenient, the adaptation proportion of shrimp growth individuals and water bodies is fully considered, the waste of aquaculture water bodies is avoided, constant temperature, circulation water, high intensity and small water bodies are adopted, the water body quality is easy to control, the continuous shrimp aquaculture system is applicable to large-scale industrial aquaculture, the shrimp aquaculture number in the unit water body can be greatly increased, and a multistage multiple aquaculture mode is adopted, the output time of adult shrimps can be greatly shortened, the idle time of equipment is reduced, and the utilization rate of the equipment is improved. The production efficiency is greatly improved, and is improved by 3 to 5 times through being compared with the outer pond aquaculture efficiency.

The invention discloses a combined fishnet square net cage used for mariculture, relating to a mariculture net cage. In the combined fishnet square net cage, a cupronickel B10 stretching net, a brass HA177-2 stretching net, a high-strenght single-fast-knot polyethylene fibre net, a high-strength nylon warp knitting net, a fishing high-strength polyethylene monofilament rope, a galvanized iron pipe and a cylindrical foam buoy are adopted. The combined fishnet square net cage is characterized in that a frame system used for the net cage is of a square double-row galvanized iron pipe frame structure. In a fishnet system used for the net cage, a double-layer synthetic fibre fishnet serves as a first fishnet, a combined copper alloy stretching net serves as a second fishnet, and the first fishnet and the second fishnet are in longitudinal semi-soft connection; a square synthetic fibre fishnet is in a combined fishnet form of the fishnets used for the net bottom of the net cage; the combined fishnet used for the net bottom of the net cage is hung on the square double-row galvanized iron pipe frame; and the square double-row galvanized iron pipe frame of the net cage is connected with a float line frame of a mooring system by a mooring rope.

The invention discloses a fermentation system for controlling cultivation pollution and a farm using the fermentation system. The fermentation system comprises a cultivation region and a fermentation bed which are arranged separately, and a drainage channel for draining liquid dung from the cultivation region to the fermentation bed; the fermentation system further comprises a material overturning mechanism for overturning and raking padding in the fermentation bed. According to the fermentation system disclosed by the invention, the fermentation bed and the cultivation region for livestock and poultry cultivation are arranged separately, so that the cultivation area of the cultivation region can be expanded, and zero emission of dung and urine is realized; the padding can be conveniently stacked, updated and maintained, so that the cultivation quantity and the living comfort of the livestock and poultry are increased, and the fermentation system of the fermentation system is effectively improved. The cultivation region and the fermentation bed are arranged separately, and an independent fermentation bed space can be sufficiently utilized to arrange each type of the material overturning mechanism to overturn and rake the padding, so that the padding of the fermentation bed can be overturned and raked, with higher efficiency and better effect, under the condition that the livings of the livestock and poultry are not influenced.

According to a three-dimensional water culture method, a three-dimensional water culture device is used. The three-dimensional water culture device comprises a nutrient solution container, cultivation pipes, cultivation cups, a liquid adding pipe, an overflow pipe, a liquid discharging pipe and a pump. A plurality of cultivation pipes are arranged up and down, every cultivation pipe is horizontally placed, the pipe end of every cultivation pipe is sequentially connected through branch pipes, the other end of the uppermost cultivation pipe is connected with the liquid adding pipe and the overflow pipe, the connecting position of the overflow pipe is higher than the liquid adding pipe, and the other end of the lowermost cultivation pipe is connected with the liquid discharging pipe. The cultivation pipes are provided with upward holes, the cultivation cups are placed in the holes of the cultivation pipes, every branch pipe is provided with a valve, the parts of the cultivation cups located in the cultivation pipes are mesh-shaped or porous, the pump connected with the lower portion of the liquid adding pipe is placed at the bottom of the nutrient solution container, and the overflow pipe and a liquid outlet of the liquid discharging pipe are placed in the nutrient solution container. The method belongs to soilless culture in three-dimensional culture, a matrix is not needed, no pollution is caused, space can be fully utilized, and the three-dimensional water culture method is widely applied and can be used for greening, vegetable planting or seed breeding.

The invention belongs to the field of fish pond oxygen supply technical equipment, and particularly relates to a pond remote control oxygen supply device. The device comprises a remote control floating boat floating on water and a propulsion oxygen supply component diving into the water, the remote control floating boat and the oxygen supply mechanism are arranged together through a lifting mechanism; the lifting mechanism comprises a lifting motor fixed to the remote control floating boat and a rack fixed to the propulsion oxygen supply component, a lifting gear is installed on an output shaft of the lifting motor, and the lifting gear is meshed with the rack. According to the pond remote control oxygen supply device, movement of the floating boat is controlled in a remote control mode, the floating boat capable of sailing around is adopted for cooperating with a jet chamber diving into the water to pump air into a pond, and the dissolved oxygen of the pond is increased.

A method for mullet artificial breeding in batches belongs to the field of fishery. The invention relates to a technical field of aquaculture, in particular to the method for mullet artificial breeding in multiple batches, and is characterized by comprising a whole process of the six stages of parent postpartum recovery, parent breeding, parent antenatal breeding in batches, parent fish selectionand hasten parturition, oosperm incubation and larval breeding; female fish occupying proportion is increased, the grouping is carried out at a low temperature period, and temperature and light control breeding in a back room is combined; according to the method, the use time of artificial breeding equipment is prolonged, the technical problem is solved that mullet artificial breeding for a long time in multiple batches is difficult, the egg grain cardinal number of breeding groups with same quantity is doubled or more, three batch breeding in a breeding season is achieved, the breeding time is prolonged by three times or more, and the fish fry breeding quantity is increased by three times or more. The fish yield-increasing effect in a breeding period is significant, and the method is applicable to industrialization large-scale development.

The invention relates to a shellfish cultivation method, in particular to a shellfish cultivation method using a deep-water stand raft. Breeding water layers for culture breeds are determined according to factors, such as biological habits of cultured shellfish, water temperature of culture environment, stability of the water temperature of the culture environment, feed, harmful organisms and the like. Water of a stand raft arrangement area is 30-60m deep. Ropes on fixed pegs are connected with a raft body, and two ends of each rope are fixed at the seabed. The whole raft body is held down on the seabed through a plurality of weights at intervals. Buoys are disposed on the raft body. One end of each shellfish cultivation cage is suspended to the raft body through a suspension rope, and one buoy is tied to the other end of each shellfish cultivation cage through a floating rope. The effective length of each suspension rope is 0.6-1.2m. A new mode of shellfish culture is initiated in the method, the advantage of water temperature difference of deep water more than 16m deep is fully utilized, a water environment with stable temperature is provided for shellfish, intermediate breeding survival rate of fry and development speed of the fry are increased, sea resources are fully and effectively utilized, and upgrade of the shellfish industry is positively promoted.

The invention discloses a breeding method of Rillengrundel (Parapocryptes serperaster (Richardson)), relates to an aquaculture method, and provides the breeding method of Rillengrundel. The breeding method comprises the steps of: preparing a cultivation pool; collecting and cultivating a parent fish; carrying out natural oviposition and manual handling, and cultivating fish fry by rich water. Theproblem that the parent fish of Rillengrundel does not eat any feed in a cement pit is solved by directionally cultivating diatom in an earthen basin; planktonic animals are killed by trichlorphon for creating a good mouth-open feeding environment for larval fishes of Rillengrundel; the problem that the larval stage feed of the larval fishes of Rillengrundel is grabbed by the planktonic animals is sloved; ostrea rivularis is bred in the earthen basin by a hanging method; the problem of the larval stage feed source in the earthen basin of the larval fishes of Rillengrundel is solved; the problem of mouth-open feeding difficulty of the larval fishes of Rillengrundel is solved, and a positive and effective way is provided to improve the breeding quantity of Rillengrundel.

The invention discloses a rooting cultivation technology for blueberry microbody virus-free seedlings. The technology comprises the following steps: (1) seedbed arrangement; (2) virus-free seedling transplantation; (3) preparation of an ANI medicinal liquid; and (4) transplantation. The invention simplifies the rooting step in bottles, greatly increases the number of cultivation, saves time and cost for bottle rooting cultivation, and can effectively reduce the direct damage of external environment change to tender virus-free seedlings, and reach the cultivating survival rate of above 98%.

The invention provides an earthworm breeding cabinet, comprising a cabinet, a cabinet door, a humidity sensor, a temperature sensor, an air inlet fan, a moveable support, at least two breeding boxes, guide plates arranged under each breeding box in an inclined manner, and a controller. The breeding boxes are arranged on the moveable support in a layered manner. The humidity sensor, the temperature sensor, and the moveable support are in the cabinet. The controller is used to control corresponding components on the breeding boxes to operate normally. The earthworm breeding cabinet is high in breeding resource utilization rate and output rate of earthworm, and has good market application prospect.

The invention relates to a shellfish culture method, and especially relates to a deepwater raft shellfish culture method; a culture breed stocking water layer is determined according to culturing shellfish biological habit, culture environment water temperature and stability, baits and harmful organisms; the raft is arranged in the water zone of 30-60m in depth, peg cables are connected with a raft body, two ends are fixed in seabed, the whole raft body is pressed in seabed by a plurality of weights at intervals, the raft body is provided with float sample buoyancy, one end of the shellfish culture cage is hung on the raft body through a lifting rope, the other end of the cage is bonded with a buoyancy through a floating rope, and the length of the lifting rope is 0.6-1.2m. The method provides the shellfish culture novel mode, fully utilizes water temperature difference advantages of the deepwater under 16m, thus providing a stable water quality water temperature environment for the shellfish, improving seedling intermediate breeding survival rate and seedling cultivating speed, solving living through summer problems of existing shellfish culture technology, fully utilizing marine site resources, and forming active promotion effect for shellfish industry upgrading.

The invention discloses an anti-bacterial, disease-preventing and synergistic seedling protection method used at an emmenopterys henryi seedling raising stage. The anti-bacterial, disease-preventing and synergistic seedling protection method comprises the steps of careful selection and purification of nursery land before sowing, sterilization before soil seedling raising, bud seedling transplantation in the early spring season, seedling field sterilization and film coverage after transplantation and slim stem strengthening at a seedling stage. For solving the technical problems of slow early-stage bud seedling growth, high disease infection rate, weed breeding and low young seedling saving rate encountered in current emmenopterys henryi seedling raising and production, the comprehensive-prevention, careful-management and unseasonal technical method for improving the seedling raising efficiency is proposed, infection of various pathogenic bacteria in the nursery land can be effectivelycontrolled, young bud browning and disease infection are prevented, moisture loss and weed breeding of soil surface are decreased, the young seedling development environment of the nursery land is improved, the disease infection rate of young seedlings is reduced, the young seedling saving rate is improved, and the method is conductive to improvement of the yield and efficiency of emmenopterys henryi seedlings cultivation.

The invention relates to a breeding method of a special wild boar in southwest of China. The breeding method of the special wild boar in southwest of China belongs to the technical field of biological breeding, and comprises the steps of crossbreeding a paternal line Duroc pig and a maternal line Rongchang flower pig to obtain a Duroc-Rongchang crossbreeding binary pig; adopting the Rongchang flower pig as a paternal line and the Duroc-Rongchang crossbreeding binary pig as a maternal line, and crossbreeding to obtain a second generation of Duroc-Rongchang crossbreeding binary pig; adopting a purebred wild boar in southwest of China as the paternal line and the second generation of Duroc-Rongchang crossbreeding binary pig as the maternal line, and crossbreeding to obtain a wild boar with 50 percent of blood relationship in southwest of China; adopting the wild boar with 50 percent of blood relationship in southwest of China as the paternal line and the Duroc-Rongchang crossbreeding binary pig as the maternal line, and crossbreeding to obtain a wild boar with 25 percent of blood relationship in southwest of China; adopting the wild boar with 25 percent of blood relationship in southwest of China as the paternal line and the purebred wild boar in southwest of China as the maternal line, and crossbreeding to obtain a wild boar with 62.5 percent of blood relationship in southwest of China, i.e. the special wild boar in southwest of China. The special wild boar in southwest of China bred through the method provided by the invention has a good breeding performance, good disease resistance, high meat factor and favorable economic benefit.

The invention discloses an abalone breeding box. The abalone breeding box comprises a breeding box body; a netting is wrapped on the outer surface wall of the breeding box body, and a zipper is arranged on the netting; a partition board is arranged in the breeding box body; a sealing door is rotationally connected to a front shell of the breeding box body through a hinge; arc-shaped plates are clamped and fixed above the partition plate in the breeding box body through limiting grooves; a feeding pipe is fixed at the center of the top of the breeding box body; and the inner part of the feedingpipe is connected with a lengthening pipe in a sleeved mode. According to the abalone breeding box provided by the invention, a netting is wrapped on the outer surface wall of the breeding box body,and can be used for filtering out some impurities in water, so that the stability of the abalone breeding is improved; the zipper is arranged on the netting, so that replacement of the netting is facilitated; and the arc plates are arranged at equal intervals in the breeding box body, so that compared with flat plates in traditional flat-plate type breeding, the arc-shaped plates have the advantages that the absorption area of abalones is increased, and the breeding number of the abalones is increased.

According to a three-dimensional water culture device, a plurality of cultivation pipes are arranged up and down, every cultivation pipe is horizontally placed, the pipe end of every cultivation pipe is sequentially connected through branch pipes, the other end of the uppermost cultivation pipe is connected with a liquid adding pipe and an overflow pipe, the connecting position of the overflow pipe is higher than the liquid adding pipe, and the other end of the lowermost cultivation pipe is connected with a liquid discharging pipe. The cultivation pipes are provided with upward holes, cultivation cups are placed in the holes of the cultivation pipes, every branch pipe is provided with a valve, the parts of the cultivation cups located in the cultivation pipes are mesh-shaped or porous, the pump connected with the lower portion of the liquid adding pipe is placed at the bottom of a nutrient solution container, and the overflow pipe and a liquid outlet of the liquid discharging pipe are placed in the nutrient solution container. The three-dimensional water culture device is simple, convenient and practical, achieves many things at one stroke, is three-dimensional due to the cultivation pipes, can be used for household plantation, landscape greening of urban parks, squares, streets and neighborhoods and decoration beautification plantation of stations, wharves and airports, can be used for seed breeding and can also be directly used for agricultural production.

The invention relates to a freshwater fish pollution-free culture method comprising the following steps: 1, culture pond requirements; 2, irrigation and water quality regulation; 3, fish fingerling selection; 4, fish body disinfection; 5, reasonable stocking; 6, breeding; 7, water quality control; 8, adding certain amount of aquatic product culture special-purpose fertilizer and microzyme into the culture pond after each time water adding; 9, properly catching. The beneficial effects are that the fish pond and fish body are disinfected and scientifically fed, thus effectively reducing drugs and artificial feed amount, and the cultured freshwater fish is high in quality and safety, and pollution free; fish fingerlings living in different water area depths can be mixed in the culture pond, and the various species can effectively utilize fish pond different water area depth spaces; ordered catching in batches can improve culture quantity and can increase fisherman incomes.

The invention discloses a tissue culture propagation expanding method for dendrobium falconeri. The method comprises the steps of an explant selection step, an explant sterilization step, a sowing step, a secondary culture step, a rooting culture step, and a seedling hardening domestication and transplanting step. According to the preparation method provided by the invention, the stability of germplasm is controlled from a female parent source, the breeding speed and breeding quantity of seedlings of the dendrobium falconeri can be effectively improved, the quality of the seedlings can be guaranteed, industrialized production of the high-quality seeds and seedlings of the dendrobium falconeri can be realized, requirements for production can be met, and a current situation of resource scarcity can be relieved.

The invention discloses clam growth formula feed. The clam growth formula feed comprises, by weight, 8-15 parts of rapeseed meal, 4-6 parts of corn gluten meal, 10-15 parts of fermented peanut meal, 3-5 parts of herba houttuyniae, 3-5 parts of semen cuscutae, 10-15 parts of seaweed, 15-25 parts of scallop powder, 0.2-0.3 part of decavitamin and 1.5-2.0 parts of complex minerals. By feeding clams with the growth formula feed during clam culture, growth of clams can be promoted, clam stocking density and quantity can be increased in water, productivity is further increased, and clams fed with the clam growth formula feed is more robust in growth, higher in meat yield and more full.

The invention discloses an intensive indoor soft-shelled turtle breeding system. The intensive indoor soft-shelled turtle breeding system comprises a pouring pond, a breeding shed for shielding the pouring pond, breeding devices correspondingly arranged in the middle of a cavity of the pouring pond and a circulating water pump for communicating water flow purification systems with the breeding devices, wherein the water flow purification systems are arranged on the two corresponding parts of the inside of the pouring pond; the breeding shed comprises an integral frame arranged at the top of the pouring pond, photovoltaic panels are laid on the left side and the right side of the top of the integral frame, and light-transmitting glass is fixedly connected between the photovoltaic panels onthe two sides through a supporting frame. According to the scheme, during specific breeding, the number of breeding ponds is limited, traditional breeding in one breeding pond is avoided, so that whenpart of soft-shelled turtles are infected with infectious diseases, the soft-shelled turtles can be treated in time, most of soft-shelled turtles are isolated, the circumstance of mutual infection can be avoided, cross infection of breeding water is avoided, and the survival rate of the soft-shelled turtles is increased.

The invention discloses an indoor cultivation method for industrial hemp for floral leaves and a seedling cultivation device of the industrial hemp. The seedling cultivation device comprises a first supporting plate, a water inlet pipe, a storage assembly and a control box, wherein the first supporting plate is rotationally connected to a second supporting plate and a third supporting plate through a first rotating shaft, a second cultivation assembly is fixed to the first supporting plate, a first cultivation assembly and a third cultivation assembly are fixed to the second supporting plate and the third supporting plate correspondingly, the water inlet pipe is located on one side of a drainage pipe, exhaust fans penetrate through the second supporting plate and the third supporting plate correspondingly, an air inlet fan and an observation opening penetrate through a sealing plate, one end of the water inlet pipe communicates with a filtering and recycling assembly, and the storage assembly is fixed to the rear side of the first supporting plate. According to the indoor cultivation method for the industrial heam for the floral leaves and the seedling cultivation device of the industrial heam, a cultivation box can be unfolded for use, the number of cultivated seedlings can be increased, and the cultivation box can be integrally moved outdoors for light treatment, so that the advantage of saving electric energy can be achieved.

The invention discloses a movable container intelligent modular breeding pigsty which comprises a frame and a top cover. Two parallel open surfaces are arranged on the frame, and the top cover is arranged on one open surface of the frame; the other open face of the frame is used for being in contact with the ground. The pigsty further comprises an erecting plate and a fence, the erecting plate is arranged on the frame, and the erecting plate is parallel to the two open faces; the fence is arranged on the erecting plate, a plurality of independent spaces are defined by the fence on the erecting plate, and the space is a moving space for pigs; a collecting tank is arranged at one end of the erecting plate; the collecting tank is used for collecting and fermenting excreta of the pigs; the frame is provided with an air pipe; the air pipe is connected with a fan.

The invention relates to a continuous shrimp aquaculture system, which comprises a first-stage aquaculture pool, a second-stage aquaculture pool, a third-stage aquaculture pool, a fourth-stage aquaculture pool, a fifth-stage aquaculture pool, a sixth-stage aquaculture pool, a transfer pipeline, a gate pipe, a water inlet pipe and a water discharge pipe, wherein the volume of the next stage of aquaculture pool is double of the former stage of aquaculture pool, and a fall difference exists between the bottom of the next stage of aquaculture pool and the bottom of the former stage of aquaculture pool. The continuous shrimp aquaculture system has the beneficial effects that the structure is simple, the operation is convenient, the adaptation proportion of shrimp growth individuals and water bodies is fully considered, the waste of aquaculture water bodies is avoided, constant temperature, circulation water, high intensity and small water bodies are adopted, the water body quality is easy to control, the continuous shrimp aquaculture system is applicable to large-scale industrial aquaculture, the shrimp aquaculture number in the unit water body can be greatly increased, and a multistage multiple aquaculture mode is adopted, the output time of adult shrimps can be greatly shortened, the idle time of equipment is reduced, and the utilization rate of the equipment is improved. The production efficiency is greatly improved, and is improved by 3 to 5 times through being compared with the outer pond aquaculture efficiency.

The invention discloses an efficient freshwater fish polyculture method, and relates to the technical field of freshwater fish culture. The method comprises following steps: preparation of a pond; planting of aquatic plants; fingerling selection: fries of silver carp, bighead carp, grass carp, black carp and bream are selected, the specifications of the fries are 40-50g per fry, 100-150 g per fry, 50-60 g per fry, 30-40 g per fry and 30-40 g per fry respectively, the stocking density is 28-32 kg / mu, and the stocking weight of the fries accounts for 29%-32%, 8%-12%, 37%-40%, 6%-8% and 10%-13% of the total weight of the fries; fingerling stocking: the silver carp, the grass carp and the bream are put into the pond for breeding firstly, and then the bighead carp and the bream are put into the pond; bait feeding; control for water quality; daily management; and fishing. According to the method, fingerlings at different water body depths are subjected to polyculture, and the number of fishes eating baits and the number of fishes in fertile water are reasonably proportioned, so that fish growth is promoted; the water environment is improved by controlling the coverage rate of the aquatic plants; and the fries are thrown in batches, the survival rate reduction caused by the competition effect of larger fries on smaller fries is avoided, and the survival rate of the fries is increased.

The invention discloses a tissue culture seedling raising method for dendrobium transparens. The method comprises the following steps: an explant selection step, a capsule disinfection step, a sowingstep, a secondary culture step, a rooting culture step, a seedling hardening domestication step and a transplanting step. The tissue culture seedling raising method for the dendrobium transparens provided by the invention can effectively increase the breeding speed and breeding quantity of seedlings of the dendrobium transparens, control the stability of germplasm from a female parent source, ensure the quality of the seedlings, realize industrialized production of high-quality seeds and seedlings of the dendrobium transparens, meet production needs, and relieve a current situation of resourcescarcity.

The invention provides cattle and sheep horn taking ointment. The ointment is prepared from the following crude drugs in percentage by mass: 33 to 35 percent of caustic soda, 30 to 32 percent of zinchydroxide, 8 to 10 percent of slaked lime, 5.0 to 7.0 percent of ossa draconis, 3.5 to 4.5 percent of radix notoginseng, 3.5 to 4.5 percent of rhizoma bletillae, 3.5 to 4.5 percent of red halloysite,3.0 to 3.5 percent of frankincense, 3.0 to 3.5 percent of myrrh and 4.5 to 5.0 percent of vaseline, wherein the sum of mass percentage of all the crude drugs is 100 percent. The invention also provides a preparation method of the cattle and sheep horn taking ointment. According to the horn taking ointment disclosed by the invention, the growth inhibiting rate of cattle and sheep horn reaches 100 percent and the horn rate is as high as 98.3 percent; the horn base has no scab and the stress of young animals is small.

The invention discloses an aquacultured fish mixed culture method. The method comprises satisfaction of aquacutural pond requirements, preparation of the aquacutural pond, selection of fish fingerling, fish body disinfection, reasonable stocking, breeding, water quality control and appropriate fishing. The method ensures that variety is various through mixed culture of fish fingerling living at different depths of a water area, effectively utilizes space at different water depths in a fish pond, not only improves the aquaculture quantity, but also increases income of fishermen through orderedfishing in batches.

The invention discloses a layered seedling growing device used for crop culture. The layered seedling growing device comprises an upper layer frame, a lower layer frame, supporting legs, connecting pipes, threaded connectors, culture grooves, a water bucket, a plug, a soil layer, a rubber ring, a sealing hole, a water flow groove, a turntable, a communicating pipe, a probe, a storage groove, an inserting groove, a water communicating hole, a filter screen, a water adding opening, a lamp holder, a lamp pipe and a water outlet pipe. The layered seedling growing device has the advantages that theupper layer and the lower layer are connected through the connecting pipes, the culture grooves are all formed in the outer walls of the peripheries of the upper layer frame and the lower layer frame, the insides of the culture grooves are used for culturing seedlings, in this way, the double-layer culture grooves can save the space and increase the culturing quantity of the crop seedlings, the inner diameter of the sealing hole inside the rubber ring is smaller than the diameter of the communicating pipe, and when the communicating pipe is inserted into the soil layer to water the seedlings,the rubber ring can cover the communicating pipe to prevent moisture loss in soil. The layered seedling growing device has the advantages that the space is saved, the seedling growing quantity is increased, and the management is facilitated.

The invention discloses an efficient mutation breeding method for apple polyploidy, and relates to the technical field of agricultural planting. Comprising the following steps: performing doubling culture on apple explants in a culture medium containing colchicine, a carbon nanomaterial and beer yeast cell walls, and performing tissue culture and subculture in the culture medium containing the carbon nanomaterial and the beer yeast cell walls. According to the cross breeding method, the rooting rate of cluster buds in the apple triploid breeding process can be increased, and then the utilization rate of high-quality germplasm resources is increased.