53results about How to "Realize nurturing" patented technology

The invention provides a fertilizer special for eucalyptus and a fertilizer application method. The fertilizer special for the eucalyptus is characterized in that: a eucalyptus base fertilizer consists of the following fertilizers in percentage by mass: 12 to 30 percent of nitrogen fertilizer, 55 to 70 percent of phosphate fertilizer, 8 to 20 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer; and a eucalyptus additional fertilizer consists of the following fertilizers in percentage by mass: 20 to 35 percent of nitrogen fertilizer, 50 to 65 percent of phosphate fertilizer, 10 to 30 percent of potassium fertilizer, 0.5 to 2 percent of boron fertilizer and 0.2 to 0.5 percent of zinc fertilizer. The fertilizer special for the eucalyptus contains nitrogen, phosphorus, potassium, boron, zinc, calcium and magnesium which are essential to the growth of eucalyptuses, reduces the waste of fertilizers caused by volatilization, loss and soil absorption and fixation, increases the utilization rate of the fertilizers, improves the growth amount and physiological disease resistance of the forest, develops the fast-growing advantage of the eucalyptuses, realizes the cultivation of short-cycle industrial raw material forest of the eucalyptuses, greatly shortens the circulation period of industrial raw material forest of the eucalyptuses, can also remedy mineral substances and nutrient components which are taken away by hacking the eucalyptuses at the same time to ensure the nutrient balance of the soil, brings maximum economic benefits with minimum fertilizer investment, and realizes the sustainable production of eucalyptus planting areas.

The invention provides a winter jujube planting method. The winter jujube planting method comprises the steps that land preparation is performed: land flat in terrain, convenient to irrigate, good in drainage, fertile in soil and loose in nature is selected for deep ploughing, and field planting furrows are dug according to line spacing; fertilizing is performed: organic fertilizer and loess are evenly mixed and backfilled to the field planting furrows, and leveling is performed; nursery stocks are selected: grafted seedlings with the stem thickness of more than 1 cm and the height of more than 0.7 m are selected as the nursery stocks; field planting is performed: field planting is performed from leaf falling in autumn to germination in a next year; seedling management is performed: young seedlings undergo watering in good time, fertilizer application, intertillage and disease and pest prevention and control within two years after the field planting is completed; reshaping and pruning are performed: resting-stage pruning is performed from leaf falling to sap flowing, wherein cuts are formed in the positions 0.5 cm higher than buds; fruit tree growing environment management is performed: artificial low-temperature dark-light dormancy promotion, mulching film coverage, temperature rise, ventilation and temperature and humidity control are adopted in the fruit tree growth process to manage a fruit tree growth environment. The winter jujube planting method is reasonable in design and achieves abundant winter jujube production in regions where are not suitable for cultivation by controlling temperature and cold needs.

The invention provides a method for labeling and culturing a penaeus japonicus family in the same pond of a higher-place pond and relates to the cultivation of young shrimps. Sand is paved in the higher-place pond and the higher-place pond is disinfected; a pipeline device for inflating and oxygenating is mounted, and seawater is filtered by the paved sand; the whole pond is disinfected, and a nutrition preparation and a bacillus viable bacterium preparation are sprayed; a fixed suspension net box is produced; the young shrimps are selected and transported; after the young shrimps are put into the pond, the water level is raised; the bacillus viable bacterium preparation and an organic fertilizer are sprayed, and povidone iodine is sprayed to disinfect a water body; after the young shrimps are put into the pond, fairy shrimp larvae which are manually incubated are fed in the morning and at night of each day within first 10 days; during a cultivation post-period, a young shrimp particle feed added with vitamins, amino acids and a lactobacillus viable bacterium preparation is fed; during the cultivation post-period, a water sample is taken every 5 days to observe the quantity of vibrio; when a lot of the vibrio is bred, a disinfectant is used for disinfecting the higher-place pond and antibiotics are added into a bait; when the young shrimps grow to be about 4cm, a fluorescent mark is injected to carry out family marking, and all the marked families are put into the same higher-place pond to be poly-cultured, and then the same pond property testing experiment is carried out.

The invention discloses a cultivation device for a landscaping nursery garden. The cultivation device comprises supporting legs; the left side and the right side of a cultivation support are respectively and rotationally connected with transmission rotating wheels; a basin box conveying belt is in transmission connection between the transmission rotating wheels; fixed bearings are uniformly and fixedly connected to two sides of the basin box conveying belt; the inner part of each fixed bearing is through and is rotationally connected with a connecting rotating shaft; a middle place, at the inner side of the basin box conveying belt, of each connecting rotating shaft is rotationally connected with a conical bonsai limiting frame; and each conical bonsai limiting frame is internally providedby a nursery bonsai box. The invention relates to the technical field of landscaping, and relates the cultivation device for a landscaping nursery garden and a using method of the cultivation device.Transmission type cultivation of landscaping seedlings is achieved, labor force for cultivating the landscaping seedlings by workers is reduced, and planting efficiency and cultivation efficiency areimproved. Green plants with different favorites are planted in the same cultivation device, so that the space utilization rate is increased. Meanwhile, a purpose that the bonsai boxes do not fall offin the transmission type cultivation device is guaranteed.

The invention discloses a root box for obtaining a crop phenotype. According to the root box provided by the invention, a support for supporting side baffle plates and light-transmitting plates is formed via a root box framework and a bottom plate; the support is connected to the side baffle plates and the light-transmitting plates to form a root system accommodation space of a flat rectangular structure; a root box upper end cover is further disposed on a top of the root box; a ground portion of a crop is grown from a through hole in a middle of the root box upper end cover, and a root systemof an underground portion of the crop is grown in the root system accommodation space and grown next to inner sidewalls of the light-transmitting plates due to limitation of front and rear light-transmitting plates; and a detailed characteristic of a root system structure can be directly observed via the light-transmitting plates. Therefore, the invention can conveniently analyze an image including a crop underground phenotype characteristic, directly obtained via a common image obtaining device, via the light-transmitting plates by removing a light shading plate out of the root box; the obtaining process is simple and convenient, the hardware cost is low and the crop growth is not affected; and a change condition of the underground phenotype characteristic of the crop can be tracked conveniently and regularly within a full period of the growth.

The invention discloses rare plant protection and cultivation equipment which comprises a base, a soil loosening and fertilizer casting mechanism and a lighting and watering mechanism, wherein the base comprises a bottom plate; and the soil loosening and fertilizer casting mechanism is mounted on the bottom plate. When soil is loosened, a sliding block A is firstly driven by a lifting motor to slide to enable a soil loosening and fertilizer casting device to move to a position convenient for soil loosening and fertilizer casting, and a soil loosening rod is driven by a stepper motor A to rotate to loosen soil; when a fertilizer is cast, the soil loosening and fertilizer casting device is driven by a steering engine to rotate to enable a fertilizer casting tube to move downwards vertically,and the fertilizer is sucked by a fertilizer pump and is injected into the soil from a fertilizer casting head; and when watering and lighting are needed, a sliding block B is driven by a stepper motor B to slide to drive a vertical rod to move around a rare plant to implement watering through a nozzle, a plant growth lamp is adopted to radiate the rare plant to implement photosynthesis, then therare plant can grow exuberantly, the rare plant can be protected, the labor can be saved, damage caused by artificial cultivation mistakes to the rare plant can be also avoided, and automatic rare plant cultivation is achieved.

The invention discloses a live bacterium cultivation and examination box for medical examination. The live bacterium cultivation and examination box comprises a box body, a cultivation box body is arranged in the box body, an aeration pipe is arranged in the cultivation box body, heat dissipation water pipes are arranged in the cultivation box body, heat dissipation fins are arranged on the heat dissipation water pipes, a culture medium mixing box body is arranged on one side of the cultivation box body, a fixed liquid pumping pipe is arranged in the cultivation box body, the upper end of thefixed liquid pumping pipe is connected to an electric push rod through a fixing frame, the upper end of the fixed liquid pumping pipe is connected to an examination box body through a rubber pipe, anexamination box water pump is arranged in the examination box body and is connected to the rubber pipe, and a display screen and a control keyboard are arranged on the surface of the examination box body. The live bacterium cultivation and examination box has the advantages that the live bacterium cultivation and examination functions can be achieved, different environmental conditions for the live bacterium can be maintained and adjusted, the environment requirements of different live bacterium can be met, on-line real-time detection can be realized, the control is convenient, and the use isconvenient and rapid.

The invention discloses a eucalyptus germination fertilizer which is used for fertilizing a second generation of sprout forest of eucalyptus. The eucalyptus germination fertilizer is prepared from the raw materials of major elements of nitrogen, phosphorus and potassium, and trace elements of calcium, magnesium, silicon, boron, zinc, copper and molybdenum through processes of crushing, mixing, pelleting, and the like, wherein the content of nitrogen is 14-22 percent, the content of phosphorus pentoxide is 7-15 percent, the content of potassium oxide is 4-12 percent, the content of calcium oxide is 5-12 percent, the content of magnesium oxide is 1-5 percent, the content of silicon dioxide is 2-5 percent, the content of boron is 0.01-1 percent, the content of zinc is 0.01-1 percent, the content of copper is 0.01-1 percent, and the content of molybdenum is 0.001-0.1 percent. Correspondingly, the invention further discloses a fertilizing method of the eucalyptus germination fertilizer. By adopting the eucalyptus germination fertilizer, various nutrients necessary for the germination and growth of eucalyptus can be met, the fast-growing advantage is fully developed, unnecessary waste of fertilizer nutrients can be reduced, properties of disease resistance, wind resistance and cold resistance of the eucalyptus are enhanced, and scientific fertilization is realized.

The invention discloses a special base fertilizer for eucalyptus and a fertilizer application method. The special base fertilizer for the eucalyptus uses organic-inorganic fertilizers, the productioncost is low, by organic matters of the special base fertilizer for the eucalyptus, the nutrient utilization rate can be increased, inorganic nutrients are balanced reasonably, after the inorganic nutrients are matched with the organic matters, requirements for various nutritional ingredients in a growing process of the eucalyptus can be met, in combination with the scientific fertilizer application method, the nutrient utilization rate is increased, waste of nutrients is relieved, negative effects to the environment are reduced, rapid and robust growth of the eucalyptus is promoted, cultivation of short-period industrial raw material forests of the eucalyptus is realized, the rotation cycle of the industrial raw material forests of the eucalyptus is shortened greatly, and the economic benefit is improved.

The invention discloses a method of designing a vegetable greenhouse Internet environment automatic control system, comprising the following steps: S1, a vegetable greenhouse control system is constructed; S2, a data collection system collects and controls the light, temperature, humidity, soil moisture content and video data inside a greenhouse; S3, a data transmission system transmits the data based on the IP network technology and the GPRS communication network; S4, a data analysis system implements different control schemes according to different environments, crops and growth periods; andS5, a field environment control system operates crops in the greenhouse according to a control scheme given by the data analysis system. The method of designing a vegetable greenhouse Internet environment automatic control system makes vegetables grow in the best environment, increases the output and realizes cross-season vegetable cultivation.

The invention discloses an automatic soilless culture production line, and belongs to the technical field of soilless culture. The automatic soilless culture production line is characterized by comprising a conveyor belt group, supporting frames and a plurality of soilless culture devices, wherein, each soilless culture device comprises a plurality of culture grooves; vegetable fixing discs are arranged on the inner walls of the culture grooves; two sliding grooves are formed in the inner wall of each culture groove, first stepping motors are arranged in the sliding grooves, and the first stepping motors are fixedly connected with the vegetable fixing discs; supporting transverse plates are fixedly connected to the outer sides of the two supporting frames correspondingly, and strip-shaped grooves are formed in the two supporting transverse plates correspondingly; second stepping motors and third stepping motors are installed in the strip-shaped grooves, the second stepping motors and the third stepping motors are connected with electric telescopic rods, rotating motors are arranged at the ends of the electric telescopic rods, and the rotating motors are connected with rotating parts; and a transverse part is fixedly connected between every two rotating parts, a plurality of sliding motors are arranged in the transverse parts, and the sliding motors are connected with picking blades. The automatic soilless culture production line is mainly used for automatically planting and picking vegetables, and the working efficiency and the automation degree are effectively improved.

The invention provides a circulating water treatment system for industrial aquaculture of fingerlings. The circulating water treatment system comprises an aquaculture pond, a mechanical filter pond, a sedimentation pond, a primary brush pond, a fluidized bed filler pond, a secondary brush pond, a coral pond, an ultraviolet disinfection pond and a water storage pond which are sequentially connected to form a circulating water purification loop, aquaculture wastewater in the aquaculture pond is sequentially introduced into the mechanical filter tank and the sedimentation tank for physical filtration, then sequentially passes through the primary brush tank, the fluidized bed filler tank, the secondary brush tank and the coral tank for biological purification and finally passes through the ultraviolet disinfection tank and the water storage tank for comprehensive treatment, the treated aquaculture water flows back to the aquaculture pond, and a complete aquaculture circulating water treatment loop is formed. According to the circulating water treatment system for industrial aquaculture of the fingerlings, the utilization efficiency of water resources is improved, the aquaculture cost of industrial aquaculture is reduced, the aquaculture environment condition can be effectively controlled, the yearly fingerling aquaculture of the Qinghai lake is realized, and the qinghai-lake naked carp fingerlings artificially cultured every year are released into the Qinghai lake as required.

The invention discloses a fertilizer for eucalyptus planting, which comprises the following raw materials in parts by weight: 95-105 parts of ammonium sulfate, 259-269 parts of urea, 36-46 parts of monoammonium phosphate, 145-155 parts of calcium superphosphate, 10-20 parts of calcium magnesium phosphate fertilizer, 170-180 parts of potassium chloride, 8-10 parts of molybdenum amino-acid chelate (complex), 8-10 parts of zinc amino-acid chelate (complex), 8-10 parts of manganese amino-acid chelate (complex), 8-10 parts of boron amino-acid chelate (complex), 8-10 parts of rare-earth amino-acid chelate (complex), 135-145 parts of nitro humic acid, 35-45 parts of amino acid, 20-30 parts of a biological agent, 8-18 parts of a synergist and 29-49 parts of a conditioner. The fertilizer contains nitrogen, phosphorus, potassium, boron, zinc, calcium and magnesium which are necessary for the growth of eucalyptus; fertilizer waste caused by volatilization, loss and soil adsorption is reduced; the utilization rate of the fertilizer is increased; the tree growth and tree physiological disease resistance are improved; the fast-growing superiority of eucalyptus is brought into full play; the cultivation of a short-cycle eucalyptus industrial raw material forest is realized; the nutrient balance of soil is ensured; and maximum economic benefits are obtained with minimum fertilizer input.

The invention belongs to the technical field of aquaculture, and relates to a catadromous migration salmon breeding method for migratory salmon. The method specifically comprises the following steps:(1) selection of juvenile salmons, wherein the average sampling weight is at least 25g, and the proportion of individuals smaller than 25g is not higher than 10%; (2) during the catadromous migrationperiod, adding an underwater light source at the bottom of the culture pond to ensure that the illumination intensity in the water body at the bottom of the pond is not lower than 20Lux; (3) cultivation in a catadromous migration stage, wherein a light control strategy is as follows: firstly, a light cycle strategy (LD12: 12) of 12 hours of illumination every day and 12 hours of darkness is adopted for 6 weeks, and then the light cycle strategy is converted into 24 hours of illumination every day (LD24: 0) and lasts for 6 weeks as well; and (4) completing the catadromous migration stage. According to the method, the weight of the catadromous migration juvenile salmon is controlled, light rays are controlled, and the form and physiological indexes of the catadromous migration stage are monitored. The catadromous migration rate can be increased by at least 4.9%, the survival rate after s catadromous migration is increased by at least 6.3%, and large-scale cultivation of catadromous migration salmons under the industrialized condition can be achieved.

The invention provides a south-cultured apostichopus japonicus out-of-season seed production and cultivation method. The method comprises the following steps: in March to June of each year of solar calendar, selecting apostichopus japonicus with full physique, performing cultivation under the condition of constant water temperature of 16 DEG C, and performing feeding with a feed accounting for 3%of the mass of apostichopus japonicus bodies; and after the apostichopus japonicas is cultured to July, starting reproduction curing and gonad culture of the seed apostichopus japonicas, reducing thetemperature of the aquaculture water body to 6 DEG C, then imitating the growth temperature curve change of the parent apostichopus japonicus under the natural condition, and gradually increasing thetemperature of the culture water body, so that on one hand, normal growth and development of the apostichopus japonicus and gonads thereof under the reduced temperature are guaranteed, and on the other hand, the apostichopus japonicus can reach the effective accumulated temperature time, and when the effective accumulated temperature reaches more than 800 DEG C per day, the apostichopus japonicasis predelivery. According to the method, the problem of parent cultivation in the south-cultured apostichopus japonicus seed production process is solved, gonad development is promoted, cultivation ofthe seed apostichopus japonicus is achieved under the artificial condition that is completely controllable, and the method meets the requirement of common farmers for out-of-season apostichopus japonicus seed production.

The invention relates to a yeast seed cultivation room and method for liquor production. A control room and a cultivation room which are adjacent are formed in an outer wall, and a partition wall is arranged between the control room and the cultivation room; a temperature and humidity control all-in-one machine is integrated with a steam generator; a heating steam inlet pipe is connected with a steam generator, and a humidifying steam inlet pipe is connected with the steam generator; a heating coil is arranged on the ground of the cultivation chamber and is connected with the heating steam inlet pipe; a heating drain pipe is connected with the heating coil and is led to the outside of the outer wall body; a humidifying pipe is arranged on the ground of the cultivation room and is connectedwith the humidifying steam inlet pipe; an upper axial flow fan is connected with the partition wall, and an upper air pipe is connected with the upper axial flow fan and located in an upper space ofthe cultivation chamber; a lower air pipe is connected with a lower axial flow fan, and the lower air pipe and the lower axial flow fan are arranged on the outer wall. According to the method, the temperature and humidity conditions for simultaneous growth of multiple yeast seeds can be achieved without manually turning over the yeast blocks, and cultivation and propagation of effective yeast seeds in the yeast blocks are completed.

The invention discloses an agricultural seedling cultivation device, which comprises an atomizer, a spraying pipe, supporting legs, a box body, a first seedling cultivation electromagnetic valve, a second seedling cultivation electromagnetic valve, a third seedling cultivation electromagnetic valve, a fourth seedling cultivation electromagnetic valve, a liquid supply pipe, a seedling cultivation box, a fifth seedling cultivation electromagnetic valve, a water pipe, a water pump, a water tank electromagnetic valve, a mixed water tank, a computer control machine, a nutrient solution tank electromagnetic valve, a nutrient solution tank, an inflow electromagnetic valve, a clear water pipe, a fluorescent lamp, a spray head, a seedling cultivation tank, a seedling cultivation box, a supporting platform, a main pipeline, a humidity sensor and a conveying pipe. The atomizer is arranged on the left side of the outer part of the box body. The spraying pipe is arranged above the box body. The water tank electromagnetic valve is connected with a mixed water tank. The mixed water tank and the fifth seedling cultivation electromagnetic valve are connected with the computer control machine. According to the invention, the device is excellent in use effect and the cultivation of different plant seedlings is realized. Nutrient solutions required by different types are added according to different types of plant seedlings. The liquid supply device can effectively mix up nutrient solutions. Therefore, the cultivation environment of plant seedlings in the box body can be effectively controlled.

The invention specifically relates to a method for preparing Kappaphycus alvarezii protoplast by using extract of internal organs of Siganus Concatenalu, which belongs to the field of biotechnology. The method comprises the following steps: feeding omnivorous tropical Siganus Concatenalu with Kappaphycus alvarezii in advance so as to induce Siganus Concatenalu to produce enzyme digesting carragheenan; then preparing mixed enzyme liquid with the internal organs of Siganus Concatenalu as a raw material; and degrading cell walls and intercellular substances of Kappaphycus alvarezii by using the mixed enzyme liquid so as to obtain free protoplast. The method provided by the invention can realize artificial cultivation of a novel strain of Kappaphycus alvarezii in virtue of traditional protoplast cell fusion and callus induction and differentiation and provide a novel approach and related supporting technology for seedling growing and breeding.

The invention discloses a crayfish breeding zoning breeding system and method in a rice field. The crayfish breeding zoning breeding system comprises the rice field and circular grooves formed around the rice field, an inner slope and an outer slope are arranged on the two sides of the circular grooves, a breeding platform is arranged on the inner side of the inner slope, a purse net is built on the breeding platform to divide the breeding platform into a large platform and a small platform, an anti-escape net, a water inlet and a water outlet are formed in the outer slope, and elodea nuttallii is planted in the large platform and the small platform. The breeding method specifically comprises the steps of rice field selection, water level management, feeding management, water quality management, fry releasing and catching. Crayfishes are subjected to zoning breeding, so that the zoning management of breeding and adult crayfish cultivation are realized, and the nutrition management accuracy and the feeding reasonability are ensured; and the breeding method of the crayfishes is improved, the size and the number of adult crayfish seeds in an adult crayfish breeding area can be controlled, the breeding density is reasonably controlled, the growth speed of the crayfishes is increased, the specification and the proportion of the crayfishes are increased, the breeding seasons in autumn and winter can be fully utilized, and the breeding time is saved.

The invention provides a circulating water treatment system for adult fish industrial aquaculture. The circulating water treatment system comprises a culture pond, a mechanical filtering pond, a sedimentation pond, a protein separation pond, a brush pond, a fluidized bed filler pond, an ozone pond and an ultraviolet disinfection pond which are sequentially connected to form a circulating water purification loop, culture wastewater in the culture pond is sequentially introduced into the mechanical filtering pond, the sedimentation pond and the protein separation pond to be physically filtered, then sequentially passes through the brush pond and the fluidized bed filler pond to be biologically purified and finally passes through the ozone pond and the ultraviolet disinfection pond to be sterilized and disinfected, the treated culture water flows back to the culture pond, a complete culture circulating water treatment loop is formed, the water resource utilization efficiency is improved, and the culture cost of industrial culture is reduced; and the culture environment conditions can be effectively controlled, the annual adult fish culture of the Qinghai Lake is realized, and an important role is played in the rapid recovery of the Gymnocypris przewalskii resource.

The present invention discloses an integrated cultivation-type artificial fish reef. The artificial fish reef comprises a main frame, a first serial adherance and a second serial adherance; the main frame is a structure with an opening with a bottom portion; the first serial adherance is floated at the upper portion of the main frame, and the second serial adherance is hung at the internal portionof the main frame. The integrated cultivation-type artificial fish reef can achieve integrated cultivation for juvenile fish of rocky fish and migratory fishes, oysters and sea cucumbers to solve theproblems that marine ranching construction is not reasonable in spatial arrangement, not enough in utilization and simple in bioroenosis structure in our country.

The invention provides a method for ecologically breeding III-stage juvenile crabs through salt marsh wetland underground brackish water, and relates to a method for salt-breeding the III-stage juvenile crabs. The method aims at solving the technical problem that breeding of the III-stage juvenile crabs cannot be achieved in inland fresh water regions currently. The method includes the steps of 1,selection of the place of a breeding pool; 2, digging of a slope-shaped annular groove; 3, establishment of a water source; 4, cultivating of high-quality palatable bait; 5, juvenile crab releasing;6, feed supplementing; 7, water supplementing. The method aims at developing and utilizing salt marsh wetland underground brackish water resources to ecologically breed the III-stage juvenile crabs, creating advantages for breeding one-year-old juvenile crabs and achieving the purpose of self-feed or partial self-feed of one-year-old juvenile crabs in the large-scale commercial crab breeding industry. After 28 days of breeding by means of the method for ecologically breeding the III-stage juvenile crabs through the salt marsh wetland underground brackish water, the average specification of theIII-stage juvenile crabs bred from juvenile crabs can reach 60.67 mg, and the survival rate reaches 25.79%. The method is applied to breeding the III-stage juvenile crabs.

The invention belongs to the technical field of forestry management, and concretely relates to a topdressing method of high-yield eucalyptuses. First topdressing is carried out 60-90 days after plantation of eucalyptuses, wherein the first topdressing comprises manual removing of weed surrounding the eucalyptuses, digging of holes, dispensing of fertilizers, earthing and other steps; a second topdressing is carried out 6-10 months after the first topdressing, and then topdressing is carried out every 12 months. The topdressing method of eucalyptuses overcomes waste brought by volatilization and loss as well as soil adsorption and fixation of fertilizers caused by traditional unreasonable fertilization methods, greatly increases utilization rate of fertilizers, and effectively improves yield of eucalyptuses, so that scientific validity of the topdressing method are embodied.

The invention discloses a virus-free seedling raising method of Beijing 553 sweet potatoes. The method comprises the following steps: firstly, sweet potato pieces are selected to undergo virus inactivation treatment and disinfection treatment, and then the sweet potato pieces are put into fine sand for accelerating germination; then, vigorous stem tips of 3cm long are cut when seedlings of the sweet potato pieces grow to be 30 cm long, leaves are cut off, the stem tips are disinfected, 0.2-0.3mm growth point with one leaf primordium is stripped off under anatomical lens and inoculated into an MS medium, and a culture dish is put into a tissue culture room for culture; and virus detections are carried out when the stem tips grow into plantlets with 4 leaves, and healthy and virus-free plants are left; and finally, stem sections of 4cm long are cut out and inserted into a tray filled with a substrate, and finally seedlings are cultivated in a greenhouse. According to the invention, virus-free seedling-raising of Beijing 553 sweet potatoes is realized, cultivation of virus-free sweet potato seedlings can be effectively achieved, variety degeneration is prevented, and yield and quality of sweet potatoes are enhanced.

The invention provides a method for ecologically breeding III-stage juvenile crabs through salt marsh wetland underground brackish water, and relates to a method for salt-breeding the III-stage juvenile crabs. The method aims at solving the technical problem that breeding of the III-stage juvenile crabs cannot be achieved in inland fresh water regions currently. The method includes the steps of 1,selection of the place of a breeding pool; 2, digging of a slope-shaped annular groove; 3, establishment of a water source; 4, cultivating of high-quality palatable bait; 5, juvenile crab releasing;6, feed supplementing; 7, water supplementing. The method aims at developing and utilizing salt marsh wetland underground brackish water resources to ecologically breed the III-stage juvenile crabs, creating advantages for breeding one-year-old juvenile crabs and achieving the purpose of self-feed or partial self-feed of one-year-old juvenile crabs in the large-scale commercial crab breeding industry. After 28 days of breeding by means of the method for ecologically breeding the III-stage juvenile crabs through the salt marsh wetland underground brackish water, the average specification of theIII-stage juvenile crabs bred from juvenile crabs can reach 60.67 mg, and the survival rate reaches 25.79%. The method is applied to breeding the III-stage juvenile crabs.

The invention discloses a device and method for hatching and cultivating portable fish eggs. The device includes a box body, a water storage bin, a fish roe temporary storage bin, a fish egg hatching bin, a fish fry cultivation bin, a fish fry feeding bin, a circulating water filtering bin, a filtered water temporary storage bin and a power bin arranged inside the box body. The device can realize the hatching of various fish eggs, the cultivation and rearing of fish fry by setting up multiple chambers with different functions, and can meet the actual needs of fish early resource investigation and research for fish spawning grounds in rivers. It is suitable for rivers A variety of fish eggs and fry collected in fish spawning grounds are continuously sorted and cultivated at the same time. The device has the advantages of refined modular design, continuous and stable operation, external or built-in power supply, easy to carry, easy to operate, strong practicability, etc., and is suitable for large-scale promotion and application.

The invention belongs to the technical field of queen bee breeding, and discloses a method for artificially hatching a queen bee. The method comprises the following steps that S1, an old queen bee with excellent swarm production performance, strong physique and vigorous physical power is selected, and larvae of the old queen bee are taken; S2, a queen breeding frame is manufactured, bowl-shaped queen cells made of beewax are fixed to the queen breeding frame, the inner wall of each queen cell is coated with fresh royal jelly, larvae of the right age are correspondingly implanted into each queen cell through a larva moving needle, and then the queen breeding frame is placed into a queen breeding apis cerana swarm; S3, an automatic incubator is cleaned and disinfected 3 days after larva transferring, and preheating is carried out for 24-48 hours under the conditions that the temperature is 34-35 DEG C and the humidity is 58%-65%; S4, the queen breeding frame is taken out on the fifth day of larva transferring, worker bees on a protective table on the queen breeding frame are removed, and then the queen breeding frame is put into the preheated automatic incubator for hatching; and S5, the humidity of the automatic incubator is adjusted to be 68%-72% on the tenth day of larva transferring, whether the queen cells are mature or not is checked after heat preservation and moisture preservation are carried out for 36 hours, the mature queen cells are cut and put into a mating group, and new queen bees are bred after mating succeeds.

The invention provides a culture method for Pseudocaranx dentex parents, and relates to the technical field of aquaculture. The culture method comprises the following steps: parent source and selection, culture pond treatment, parent transportation, parent domestication, parent culture and daily management, wherein parent culture comprises water temperature and illumination regulation and control, water ring regulation and control and feed feeding. According to the scheme, factory-like domestication and culture of the Pseudocaranx dentex parents can be achieved, the domestication survival rate and the development maturity rate of the Pseudocaranx dentex parents are increased through parent domestication, periodic regulation and control of culture water temperature, illumination time and the like and reproduction nutrition enrichment, the egg laying rate, the fertilization rate and the hatching rate are increased, factory-like culture of the Pseudocaranx dentex parents is achieved, and a new high-added-value culture variety is brought to the mariculture industry.

The invention discloses a pine tree controlled-release fertilizer for scientifically increasing yield and a preparation technology thereof and belongs to the technical field of fertilizer preparation.The pine tree controlled-release fertilizer for scientifically increasing yield comprises the following raw materials: urea, diammonium phosphate, potassium sulfate, calcium chloride, magnesium sulfate, manganese chloride, zinc chloride, sodium borate, fulvic acid, potassium polyacrylate, kieselguhr and coating material. The pine tree controlled-release fertilizer for scientifically increasing yield is prepared according to the following steps: pelletizing, drying, cooling, coating, and the like. According to the invention, the advantages of pine tree controlled-release fertilizer can be extremely utilized; cultivation of short-period industrial raw material forest of pine trees can be realized; the rotation period of industrial raw material forest of pine trees can be greatly shortened;mineral substances and nutrients brought by pine tree felling can be made up and nutrient balance of soil can be guaranteed; the maximal economic benefit can be acquired with the minimal fertilizer investment; the sustainable production of pie tree planting region can be realized.

The invention provides automatic plant cultivation equipment which comprises a conveying device for conveying seedling nurseries nurseries and an adjusting device arranged above the conveying device and used for adjusting the environment, wherein the conveying device comprises a conveying groove for conveying the seedling nurseries; the conveying groove comprises a plurality of bearing sections for bearing seedling nurseries; and the adjusting device comprises a plurality of adjusting mechanisms arranged above the bearing sections. In the actual implementation process, a controller controls the conveying device to convey the seedling nurseries to the position below the adjusting mechanism, the adjusting device regulates and controls the environment of the seedling nurseries, and dependence on manpower is reduced through mechanical and automatic operation; and meanwhile, the large-area nurseries are separated through the plurality of bearing sections, so that the adjusting mechanism can finely adjust and control the environment of each seedling nursery, seedlings of plants can grow tidily and healthily, and cultivation of short and strong seedlings is achieved.