202results about How to "Won't rot" patented technology

The invention relates to a planting method of submerged plants. According to the planting method, the submerged plants, planting soil, wrapping materials, ropes and clay are adopted. The planting method comprises the following steps of when the submerged plants are planted, wrapping stems and roots of the submerged plants by using the planting soil, wrapping the bottom of the planting soil by using the clay, and wrapping the outer sides of the planting soil and the clay by using the wrapping materials, wherein the bottoms of root systems of the submerged plants are not wrapped by the wrapping materials; and meanwhile, binding the outer sides of the wrapping materials by using the ropes, and carrying out dispersed planting on the wrapped and bound submerged plants. According to the planting method, as the wrapping materials are adopted, the loss of the planting soil after the plants are subjected to dispersed planting is overcome, so that the floating-up rate of the submerged plants is greatly reduced. As the clay is adopted for bottom sealing, the problem of loss of the planting soil after the plants are subjected to dispersed planting is solved, the defect that the root systems of the plants cannot pass through the wrapping materials is overcome, and therefore the survival rate of the submerged plants is greatly improved. The water-permeable wrapping materials are adopted, and the contact between the root systems of the plants and oxygen in water is enhanced, so that the roots of the plants cannot be rotten due to oxygen deficiency, and therefore the survival rate of the submerged plants is increased.

The invention provides a cultivation method of radix scrophulariae, comprising the following steps of: 1) storage for plants with basal parts of stems in the year before cultivation; 2) cultivation pre-treatment for plants in the cultivation year; 3) ridge-planting cultivation in a mode like a Chinese character 'pin'; and 4) final-period management, wherein the plants are stored locally with basal parts of stems, buds have no wound and cannot rot, and the survival rate of the buds can reach 100%, thus avoiding the mechanical damages on the buds caused by multiple transports. In addition, the buds can also obtain nutrients from the basal parts of stems in the storage period, which is beneficial to the growth during planting in the next year; and the plants are sterilized by means of spraying and easy to operate, thus overcoming the mechanical damages on the plants caused by a soaking mode. Compared with conventional-planting cultivation, the ridge-planting cultivation has the advantages that the surface area is increased, lighted area is increased, and the interface of a soil body and the atmosphere is enlarged, and the expansion of root tubers, field humidity reduction and water drainage are promoted. Space can be adequately utilized through pits dug in a mode like a Chinese character 'pin'; and the technology is improved based on traditional technology, the method is simple and convenient, easy to operate and control and can be learnt by general farmers.

The invention discloses an ecological substrate for a hard-substrate shallow lake as well as a preparation method for the ecological substrate and a substrate improving method. The ecological substrate is prepared from clay, environment-friendly ceramic filter bulbs and bentonite. The preparation method for the ecological substrate comprises the following steps: (1) selecting the clay, the environment-friendly ceramic filter bulbs and the bentonite as raw materials for substrate improvement; (2) placing the environment-friendly ceramic filter bulbs in diluted hydrochloric acid to soak, washing the mixture with clear water until the mixture is neutral, and drying the mixture; (3) soaking the bentonite in sodium carbonate liquor, stirring the mixture and placing the mixture in a muffle furnace to roast; and (4) uniformly mixing the clay, the treated environment-friendly ceramic filter bulbs and the bentonite to prepare the ecological substrate for the substrate improvement. The substrate improving method for the hard-substrate shallow lake comprises the following steps: (a) arranging bamboo sticks in the substrate improving area in the lakebed, and diffusing and flowing away the modifying substrate; (b) spraying the ecological substrate material into the lakebed from the lake surface; and (c) planting submerged plants in the substrate improving area, and managing and conserving the submerged plants. The method is easy to carry out, simple and convenient to operate, so that the problem that the submerged plants are difficult to root and easy to float in the hard-substrate lake is effectively solved.

The invention relates to bamboo processing field especially to bamboo carbonizing coloring method. The method is that dip clean bamboo in clean water so to remove the organic matter in the bamboo and then dry out the bamboo at the temperature of 60 to 160 deg. C for 12 to 60 hours. Carbonize the bamboo in the carbonizing furnace in a vacuum circumstance at 200 to 600 deg. C for 10 to60 hours. Finally polish the carbonized bamboo. The devices adopted in the invention is carbonizing furnace with is able to evacuate inside so to prevent the bamboo from cracking, plus, the polisher head should be soft in order not to crack the carbonized bamboo. The bamboo color processed with this technique can be white, light yellow, bronze, brown, and copper.

The invention relates to the technical field of crop culture, in particular to a seed germination or seedling hydroponic device. The device comprises a hydroponic plate and a hydroponic case, wherein the top of a case body of the hydroponic case is open, the hydroponic plate is located in the hydroponic case and floats on the surface of a solution in the hydroponic case, and a plurality of pores are formed in the hydroponic plate, so that roots can enter the solution in the hydroponic case through the pores after the seeds germinate. The hydroponic plate floats on the surface of the solution in the hydroponic case, the crop seeds can be partially contacted with the solution and partially contacted with the air, sufficient oxygen is supplied to the seeds while the seeds imbibe and absorb water fully, the hydroponic plate taken out is put in the hydroponic case accommodating a replaced culture solution, and replacement of the culture solution can be completed; the device can be used for batch seed germination and screening tests, realizes integration of germination and seedling culture, simplifies the intermediate process of sand culture and seedling transplanting, reduces damage to the seedlings and particularly the roots of the seedlings, and shortens the time for seedling recovery due to replacement of a culture medium.

The invention discloses a double-layer composite tube and a manufacturing method thereof. The double-layer composite tube and the manufacturing method aim to solve the technical problems that black pigment is added into traditional HDPE tubes, accordingly inner walls are not smooth, water scale is prone to being generated, bacteria grow, and secondary pollution of water is caused. The double-layer composite tube comprises an inner layer and an outer layer, the inner layer is made of ultrahigh molecular weight polyethylene and ethylene-vinyl alcohol copolymers or low-density polyethylene, and the outer layer is made of high-density polyethylene, ethylene-vinyl alcohol copolymers and special melanin particles C of PE. The method includes the following steps of material proportioning and dehumidifying, material plastifying, material forming, vacuum sizing and spraying and cooling. The double-layer composite tube has the advantages of being good in toughness and flexibility, high in chemical stability, good in corrosion resistance, good in sealing performance, large in distribution power, long in service life, high in low temperature resistance, hygienic, free of toxin and the like. The manufacturing method is simple, easy to operate and capable of achieving integral production of the double-layer composite tube.

The invention belongs to fine chemical engineering miscellaneous goods and relates to the technical field of preparation and production of environmental-friendly selenium-rich germanium element nutrition fertilizer which is used for deodorizing for people and livestock excrement and toilet rubbish, scattering fragrance and spontaneously producing the negative ions to release trace elements, in particular to selenium-rich germanium element nutrition fertilizer capable of deodorizing, scattering fragrance and producing negative ions in a toilet and prepared by the people and livestock excrement. The people and livestock excrement and the rubbish are scattered and fermented through selenium-rich germanium saccharomycetes, selenium-rich germanium ganoderma lucidum mycelia, catalyzing enzyme, chitin trace element mineral substances, tourmaline, sepiolite and the like to prepare the selenium-rich germanium nutrition fertilizer for growth and development of agricultural plants, so that component contents of the trace elements in the agricultural plants are increased, the output is effectively improved, the production value is promoted, both production and income increasing of peasants are facilitated, the trace elements are reasonably and effectively supplemented for human, the physical quality of people is strengthened, the effect of preventing and curing diseases is realized, and physical constitution all the people is strengthened and improved. The selenium-rich germanium element nutrition fertilizer benefits the country and the people, and strengthens the country and richens the people.

The invention discloses a planting method of cherries. The planting method comprises the following steps: 1, land selection; 2, land finishing; 3, planting; 4, flood control management: keeping the moisture content of a cherry plant at about 70 percent during flood control management, digging 5 radial ditches with the width of 15 cm in soil ridges around a tree trunk serving as a center, putting super absorbent polymer with water absorption capacity reaching 400 times into the radial ditches, and adjusting the mass of the super absorbent polymer used according to the scale of rainfall; 5, shaping and trimming; 6, flower and fruit retention; 7, pest and disease prevention and treatment. In case of flood or heavy rainstorm, the super absorbent polymer can absorb water accumulated in the soil, so that the phenomenon that roots of cherry trees are rotted to die or gum of the cherry trees is rotted to die because of oxygen deficit due to the fact that the soil is lack of oxygen as excessive water is accumulated in the soil is avoided; with the water retention property, the super absorbent polymer can slowly release the water in the resin, so that the soil at the roots of the cherry plants can keep proper growing humidity.

The invention relates to artificial soil particles used for cultivating flowers, which is characterized in that: the particles used for cultivating the flowers mainly consist of two parts of nutrient particles and filling particles, wherein, the texture of the nutrient particles which have structures with a plurality of air vents is hard while the texture of the filling particles which have structure with a plurality of compact air vents is soft, besides, the volume of the nutrient particles is larger than the volume of the filling particles. The nutrient particles also contain microorganisms for promoting the growth of plants. When in use, the cultivation particles of the invention not only can promote newly-cultivated flowers to grow normally and more quickly but also have good water reserve performance and air permeability; furthermore, the performance is stable for long time use without turning rot or going bad or suffering from insect pests, thus being quite applicable to planting potted plants of flowers and the like, and being particularly applicable to being used at application occasions where the potted plants are adopted for purifying air.

Disclosed is a method for repairing a tree hole by manufacturing a plastic thermal expansion bucket through a moving type extruder and pouring cement. The extruder is moved to a site, and the manufactured plastic thermal expansion bucket is put into the tree hole immediately; the wall of the thermal expansion bucket is blown to be heated through a hot air gun while the thermal expansion bucket is hot; the bucket wall expands when heated so as to be closely attached to the hole wall of the tree hole; metal tie bars and fixing screws are arranged in the cracked tree hole; the cement is poured in the bucket; after the cement is dried, a bucket opening is covered by a plastic plate; the hot air gun is used to blow the bucket edge and the plastic plate to melt and laminate the bucket edge and the plastic plate together; the cement plays a role in repairing and supporting; the tie bars tighten a circle of a trunk to be together to enable the trunk to be a whole trunk; plastic covers the cement so that the cement cannot absorb and evaporate water and conduct chemical reaction, and accordingly the tree hole is repaired by the cement; the plastic bucket wall does not affect growing of a tree; and wood pieces are additionally pasted on the opening-sealed plastic plate, the wood pieces are beneficial for growing and healing of bark, and finally the bark covers the plastic thermal expansion bucket and cement in a tree core to enable the big tree to be integral and grow normally.

The invention discloses a biological degumming process for ramie. According to the process, the degumming is carried out on raw ramie after the ramie is stripped, and the process specifically comprises the steps of material preparing, bundling, ensiling, ramie washing, oil feeding and the like. According to the biological degumming process for the ramie, disclosed by the invention, microorganisms attached to the ensiled ramie are utilized to degrade a major part of colloid, and simultaneously, the ensiling is carried out in a sealed anoxic environment; lactic acid, acetic acid and other organic acids are gradually accumulated to further degrade the colloid and inhabit the growth of spoilage organisms, so that the ramie can not rot, thereby ensuring the strength of ramie fibers while ensuring the effective degumming. Therefore, the process is simple, the operation is convenient, the energy consumption is low, the pollution is light, the implement is easy, the requirement on instrument is small and the cost is low, and the process can be used for on-site degumming of the ramie in a producing area, thereby saving the transportation cost.

The invention discloses a dendrobium nobile culture substrate material. The dendrobium nobile culture substrate material is composed of three layers, and the three layers refer to the fertilizer substrate layer, the gravel layer and the filtering layer which is laid between the fertilizer substrate layer and the gravel layer; the fertilizer substrate layer is located on the topmost layer and is formed by mixing 20-50% of wood flour, 10-30% of bark, 5-10% of sawdust, 5-10% of brick granules, 5-10% of sphagna, 5-10% of corn straw and 20-30% of decomposed organic fertilizer; the decomposed organic fertilizer is formed by mixing cow dung, chicken manure, plant ash and sheep manure. The invention further discloses a preparation method of the dendrobium nobile culture substrate material. The dendrobium nobile culture substrate material has the advantages of being excellent in air permeability, fertilizer retention capacity and water-retaining property, low in cost and capable of providing N-P-K organic fertilizer required by the growth of dendrobium nobile, and the harvest period is shortened to about a year and a half.

The invention relates to a message gift certificate transmission cash method, which transmit gift certificate via transmitting messages. When consumer buys the gift certificate with a card number password, the card number password and the telephone number can be edited into message to the transmitted to the computer message server system, and the third part (SP server) will send the gift certificate to the gift certificate receiver; the gift certificate receiver can access into special gift certificate website, to select the gifts according to received card number password or the telephone number of card owner in the database.

The invention discloses a writing brush provided with a cap and capable of preventing a brush head from being damaged. The writing brush comprises a penholder, the brush head and the cap. The upper bottom face of the cap and the lower bottom face of the cap are open, a channel with the two ends open is formed in the cap, the diameter of the channel in the cap is not smaller than that of the penholder, and a cap locating device is arranged at the joint of the penholder and the brush head. Brush hairs of the brush head are composed of several kinds of soft goat hairs, soft wolf hairs and soft rabbit hairs, a brush center layer is located in the brush head, and a hair layer is arranged outside the brush head. A traditional structure and a traditional sleeving mode of a cap are changed, and the brush hairs are prevented from being damaged; the two ends of the cap are open, and therefore the brush hairs are breathable and can not fall off due to rot.

The invention provides a double-rowed crossed selenium enriched-mauve jade Chinese yam planting method comprising the following steps of selecting a land, flattening the land, applying fertilizers, selecting seeds and processing, planting, retaining water and shielding sunlight, managing the field, preventing cirrus excessive growth, preventing disease and insects and harvesting. The Chinese yam seed are processed in a segmental way, so corrosion of the seed segment can be avoided; germination can be accelerated and geminating efficiency can be improved; the length of each seed segment can be shortened, so Chinese yam use amount during the plantation can be reduced; germination rate can be guaranteed; plantation amount for each mu can be increased; output can be improved; the excessive growth of the Chinese yam cirrus can be prevented, so organic substance complexed by photosynthesis and nutrition absorbed by the yam root can be applied to Chinese yam growth; and output can be greatly improved. The selenium enriched land is selected and selenium-containing fertilizers are applied in each fertilizer management, so enough selenium can be absorbed and utilized during the whole growth process of the Chinese yams; and the mauve jade Chinese yams produced by the method is enriched with selenium elements.

Disclosed is a fast rooting flowerpot device and a using method thereof. The fast rooting flowerpot comprises a water storage layer, a breathable and water absorbing layer and a colonization layer. Water is discharged automatically through side drain holes when a water supplying level reaches the height of the storage layer. According to the fast rooting flowerpot device and the using method thereof, the existing flowerpot structure in which water enters from the up and drains from the down is improved to a side draining structure, the air hole at the bottom of the existing flowerpot is transferred to the side of the flowerpot, therefore the fast rooting flowerpot can supply more water, nutrients and oxygen for plant growth than the existing flowerpot, satisfy requirements for thriving of the plants, a cover of the flowerpot can be opened from the middle and cover on the fast rooting flowerpot to fix the plants after bypassing roots of the plants, and water capacity in the flowerpot can be adjusted. The fast rooting flowerpot device and the using method thereof have the advantages of being suitable for a plurality of plant cultivation methods, particularly supplying an optimal container for medium cultivating and hydroponic plants, being regarded as an important breakthrough for the existing flowerpots, and suitable for indoor and outdoor potting, home beautification, office green decoration, ecological improvement of air quality, landscaping, building decoration, various kinds of potted plants and the like.

The invention relates to water-based rodenticidal gels which are not cured, remain attractive to harmful rodents for a longer period of time, the viscosity thereof remaining permanently adhesive to surfaces.

The invention relates to a water platform capable of lifting and descending along with water level. The water platform comprises a floating boule, rot-proof sleepers, rot-proof wood boards, stainless steel wires, stainless steel screw nails, a stainless steel handrail, expansion screws, stainless steel sliding chutes, stainless steel chucks and sliding chute embedded parts. The water platform provided by the invention has the beneficial effects that: a PE (Polyethylene) floating buoy is used by the water platform, so that the water platform can freely rise and descend according to the water level variation, and can satisfy the demand of people for playing in water in any seasons; the rot-proof sleepers, the rot-proof wood boards, the stainless steel wires and the stainless steel screw nails are used, thus the water platform is prevented from rotting due to water immersing, and has longer service life than a common water platform; and the stainless steel screw nails with length of 8 cm are used to connect a plurality of rot-proof sleepers with thickness of 5 cm to the upper sides of the rot-proof wood boards with thickness of 5 cm in a threaded manner, thus the water platform is suitable for rivers and lakes with multiple water levels, and is simple, beautiful and practical.

The invention relates to a novel decoration aluminum buckle plate of a house stand column. The decoration aluminum buckle plate has the decoration effect of the wood stand column and can tightly cover the corresponding portion of a building, so that the building is prevented from being corroded by outdoor natural environment, the service life of the building is prolonged, and the advantages of being simple in structure and convenient to construct are achieved. According to the technical scheme, the novel decoration aluminum buckle plate of the house stand column is characterized by comprising a base fixed to an outer wall and a cover plate movably located on the base through an inserting structure.

The invention discloses an environment-friendly energy-saving active carbonized light-weight wall material which comprises 60-80% biological activated carbon and 20-40% of binding material according to a volume ratio. The invention also discloses a production method of the environment-friendly energy-saving active carbonized light-weight wall material. The production of the biological activated carbon comprises the following steps of: (1) pulverizing crops to obtain crop powder; (2) making the crop powder into crop particles by using a particle forming machine; and (3) carbonizing the crop particles to obtain the biological activated carbon by using a carbonization furnace. The invention also discloses an application of the environment-friendly energy-saving active carbonized light-weight wall material. The environment-friendly energy-saving active carbonized light-weight wall material is used for making gypsum hollow building blocks, gypsum cast-in-place walls and gypsum sandwiched building blocks. When used for building partition walls and interior and exterior decoration building blocks, the environment-friendly energy-saving active carbonized light-weight wall material has the advantages of light weight, sound insulation, heat insulation and air purification.

The invention discloses a fireproof material of door frame, window frame and door, which comprises the following parts: 1-10% light-burned magnesia, 1-150% bittern, 1-10% wood, 1-10% amianthine, 0. 5-10% glass fiber, 0. 5-6% graphite and 1-10% talcum powder, wherein at least two layers of glass fiber nets are added before casting and moulding the door frame, window frame and door, which is used to fine and shape; the experiment result proves that the flame can't penetrate the frames far away from 10 cm when the flame temperature reaches 800 deg. c, which satisfies the need of high-layer citizen building design fireproof standard completely.

Disclosed are a jade comb manufacturing method and jade comb manufacturing equipment. The jade comb manufacturing method includes the process steps: selecting raw materials, avoiding cracking positions of jade and determining a cutting position; disintegrating the jade according to the determined cutting position by the aid of a diamond sawing machine to obtain jade pieces with certain sizes and thicknesses; mounting the cut jade pieces on a semi-automatic jade comb tooth punching machine to form attractive and regular comb teeth; grinding the appearance of a jade comb and the appearance of the comb teeth and smoothly grinding roots and edges of the comb teeth by the aid of a diamond surface grinder; removing edges and corners of the comb teeth by the aid of a comb tooth grinder; polishing a flat surface of the jade comb; evenly coating a protective wax layer on the jade comb by the aid of a special waxing machine to lead the surface of the jade comb to be more smooth and bright; and packaging the finished jade comb. The jade comb manufactured by the method has the advantages that static electricity is omitted, acupuncture points of the head of a user can be naturally massaged by the smooth comb teeth, blood circulation of the head is promoted, and the effects of hair care, hair maintenance, healthcare and the like are achieved.

The invention relates to preparation of specimen making solution, in particular to preparation of solution capable of removing formaldehyde from a human system anatomic specimen. The soaking preservation solution for removing the formaldehyde from the human anatomic specimen comprises the following components: 1 to 3g / L of sodium hydroxide, 1 to 3g / L of sodium metabisulfite, 1 to 3g / l of ethylene diamine tetraacetic acid, 3 to 5g / L of glucose, 3 to 5g / L of thymol, 0.5 to 1g / L of perfume and the balance of 30 to 40 percent of alcohol. Through a plurality of experiments, the solution newly prepared at one time can soak 5 to 7 batches of specimens, the specimens cannot mildew for 2 to 3 months after being taken out, and the specimens can also be preserved in the solution for a long time and cannot decay; therefore, a good teaching environment for anatomy without formaldehyde odor can be created, so teachers and students can easily teach and learn the anatomy, which accords with the thought of human-oriented scientific outlook on development.

The invention provides a method for planting purple Chinese yams in a twin-row crossed staggering mode. The method includes the following steps that soil preparing and soil fertilizing are carried out, guide grooves are placed, seed selection and treatment are conducted, water retention and sunshade treatment is carried out, field management is performed, diseases and insect pests are prevented and treated, and harvesting is achieved. The method has the advantages that the purple Chinese yams planted through the guide grooves are uniform in body shape and weight and excellent in both appearance and color, and the phenomenon that the appearance of delicious Chinese yams is bad is avoided; Chinese yam seed sections are treated, the seed sections cannot rot after being planted, germination is accelerated, the sprouting ratio is increased, and meanwhile the length of each seed section is decreased, so that the purposes of reducing the using quantity of the Chinese yams in the planting process, guaranteeing the germination rate, increasing the planting quantity per mu, increasing the yield and the like are achieved; due to the fact that the twin-row crossed staggering planting method is adopted, compared with an existing single-row planting method, the planting quantity per mu can be obliviously increased, and the yield per mu is greatly increased.

The invention relates to a method for processing cowpeas. A pickling material comprises the following raw materials in part by weight: 80 to 100 parts of cowpeas, 5 to 10 parts of table salt, 100 to 300 parts of soy sauce, 20 to 50 parts of sesame oil, 1 to 5 parts of flos caryophyllata, 1 to 5 parts of cardamom, 1 to 2 parts of star anise, 1 to 2 parts of resurrection lily, 1 to 2 parts of cassia bark, 1 to 2 parts of fennel, 1 to 2 parts of tsaoko amomum fruit, 1 to 2 parts of villous amomum fruit, 1 to 2 parts of pricklyash peel, 1 to 2 parts of lysimachia sikokiana and 1 to 2 parts of myrcia. A preparation method comprises the following steps of: 1, cleaning the cowpeas, removing bases of the cowpeas, cutting into sections, well boiling the cowpeas, and pouring the cowpeas into a container; 2, pouring other raw materials into the container, and stirring with the cowpeas uniformly; and sealing the container, sterilizing at high temperature, and standing for one week to eat. The cowpeas prepared by the method can be stored for a long term without corrupting, do not lose nutrition, and has abundant mouthfeel and special flavor.

The invention discloses a vigna unguiculata processing method which comprises the following steps: (1), airing or drying fresh vigna unguiculata at 35-60 DEG C for 5-8 h, so as to remove 65-70% of moisture, and cleaning the aired or dried fresh vigna unguiculata for standby application; 2), adding edible salt, sorghum Baijiu and green prickly ash in vigna unguiculata, uniformly mixing pickling materials and pickling for 8 h; (3), feeding picked vigna unguiculata into a jar, sealing the jar, covering the jar with a jar cover, adding water in the jar edge and fermenting for 6-18 months hermetically; (4), after fermentation, taking vigna unguiculata out of the jar, carefully selecting, cutting, blending, filling and packaging so as to obtain a finished product. The vigna unguiculata prepared through the processing method disclosed by the invention is not rotten after being stored for a long time, free of nutrient loss, rich in taste and full-flavoured. With the adoption of the method, environmental pollution is reduced, the production waste treatment cost is reduced, and meanwhile, the problem that plenty of sewage is produced in a vigna unguiculata product processing process is solved.

The invention discloses a high-efficiency stable-yield and high-yield gastrodia elata planting method, which comprises the following steps of S1, land selection: a high mountain cold place with the altitude being 1500 to 2000m is selected; in addition, the soil layer thickness needs to be deep; the texture needs to be loose and ventilated; ridge beds using mu as the unit are formed; the effective planting area is selected to be about 450 planes; S2, pit digging: a plurality of linear pits with the width being 80 to 100cm and the depth being 15 to 17cm are dug on 450 planes; the bottoms of the pits are flattened; a layer of fresh tree leaves with the thickness being 4 to 5cm is laid; S3, strain preparation: broad-leaved forest trunks with the diameter being 9 to 13 cm are selected and are sewed into sections with the length being 30 to 35cm to be used as bacteria sticks; then, broad-leaved forest branches with the diameter being 2 to 4cm are sewed into small sections being 6 to 7m to be used as bacteria branches; then, sawdust with the mass ratio being 35 to 55 percent and mud-free wet river sand with the mass ratio being 45 to 60 percent are selected and are uniformly stirred to be made into bacteria material substrates. The method provided by the invention has the advantages that the yield of the gastrodia elata is improved; in addition, the yield is stable; in addition, the gastrodia elata decay can be prevented through the vertical placement of the bacteria sticks; the rat defensiveness is high; the rat damage can be avoided; in addition, the drought resistance is improved.

The invention relates to a method for preparing small insect specimens, and in particular relates to a method for preparing small forensic insect specimens. The method comprises the following steps: fixing live insects with fixing solution for 45-60 minutes; rinsing the fixed insects with distilled water for 5 minutes; transferring the rinsed insects to an embedding agent; dropping drops containing the insect specimens into 2-2.5% of CaCl2 by utilizing a pipettor or a dropper and gently shaking the vessel for 20-30 minutes; and transferring the products to the distilled water to be rinsed for 15-20 minutes, thus forming transparent rigid spheres containing insects. The method has the following advantages and effects: the original colors and morphological structures of the insects can be maintained; the specimens can not be decayed and are convenient to transport and store; and the embedded specimens can be taken out by a depolymerizing agent to be further studied.

The invention discloses a strawberry fresh-keeping device. The device comprises a box body; a storage rack with strawberry storage grids is arranged in the box body; an exhaust fan and an electrostatic spraying device are respectively arranged on the left side and the right side of the inner wall of the box body; and a ventilation opening is formed in the top of the box body. The invention also provides a strawberry fresh-keeping method, wherein the strawberry fresh-keeping method is implemented by using the strawberry fresh-keeping device. The strawberry fresh-keeping method comprises the following steps: placing strawberries into the strawberry storage grids of the strawberry fresh-keeping device; and processing the strawberries by using a plant essential oil emulsion sprayed by the electrostatic spraying device to complete strawberry fresh-keeping. The strawberry fresh-keeping device provided by the invention realizes sterilization treatment of strawberries, maintains quality of harvested strawberries, avoids mechanical damage in storing and transporting processes of the harvested strawberries, and prolongs the shelf life of the strawberries.