73results about How to "Short growing season" patented technology

The invention discloses technology for establishing alfalfa grasslands at cold regions. The technology comprises the following steps of: seeding preparation, namely selecting stub land of which the preceding stubs are closely planted crops, ploughing and harrowing soil, manuring barnyard manure, and weeding; alfalfa seeding, namely seeding in early May, backfilling shallow soil, and raking the soil smooth before being frozen, wherein the seeding row spacing is 30 to 40 centimeters; the seeding ditch depth is 10 to 15 centimeters; the seeding quantity is 37.5 to 45kg per hectometer; and the seeding depth is about 2 centimeters; establishing management, namely weeding when the height of alfalfa plants is about 10 centimeters and then watering and manuring the barnyard manure or a phosphatic fertilizer; grassland mowing, namely mowing in early October in the first year, and moving the first stubs in middle July and the second stubs in late September in next year; and winter irrigation, namely performing winter irrigation before the soil is frozen. By selecting cold-resistant alfalfa varieties and suitable cold-resistant planting technology, the alfalfa can smoothly live through a first winter and spring, the aim of establishing the alfalfa grasslands at the cold regions is fulfilled, and the problems of leguminous forage deficiency and nutritional imbalance of domestic animals at the cold regions are solved.

The invention relates to a manufacturing method of a high density fiberboard for a whitened type E1 grade floor substrate, which comprises the steps of wood chipping and screening, pre-stewing and stewing, defibrator process for causing fiber separation, concoction of E1 grade urea formaldehyde resin glue, curing agent preparation, the application of urea-formaldehyde glue, curing agents and paraffins, drying, paving, hot pressing, cooling and tempering, and sanding and saw cutting, and is characterized in that woods are selected from major diameter cottonwoods with diameters larger than 8cm, are evenly chipped and are then placed in an outdoor storage yard to be fermented for 5 to 15 days; in the concoction process of the E1 grade urea formaldehyde resin glue, urea is added at 5 times; and the curing agents are formed by preparing phosphoric acid accounting for 3 to 5 percent of the total content, urotropin accounting for 1 to 3 percent of the total content, triethanolamine accounting for 1 to 3 percent of the total content, and ammonium sulfate accounting for 19 to 21 percent of the total content. The obtained whitened type E1 grade floor substrate has the advantages of little surface impurity, fine and smooth fiber, white color, good visual effect, reasonable density distribution and moderate intensity, and is frequently used for producing top grade indoor laminate flooring and composite floors.

The invention relates to a speaker flat plate diaphragm made of a vegetable fiber reinforced polypropylene composite material and belongs to the field of design and manufacturing of an electroacoustic device and an audio electronic product. The speaker flat plate diaphragm comprises the following raw materials in percentage by mass: 80 percent to 90 percent of polypropylene resin, 9 percent to 15percent of vegetable fibers and 1 percent to 5 percent of nano inorganic additive. The speaker flat plate diaphragm has the beneficial effects that the adopted polypropylene resin raw material is supplied sufficiently and has low cost; compared with a solid material with the same size of the speaker flat plate diaphragm, the density of the speaker flat plate diaphragm is greatly reduced; and the rigidity of the speaker flat plate diaphragm is obviously improved and is easy for mass production and performance parameter control.

The invention relates to a method for utilizing cotton stalks to cultivate Auricularia polytricha in the technical field of edible fungi cultivation. The technical proposal of the method is that: raw materials that forms culturing materials are allocated according to parts by weight: 80-90 parts of cotton stalk powders, 5-15 parts of bran, 3-5 parts of ordinary superphosphate, 1.5-3 parts of land plaster and 0-1 part of sugar; dry materials after allocation and 100-150 parts by weight of water are mixed and steamed; and then the fermentation is carried out and the pH value of the culturing materials is 5-6; discolored Auricularia polytricha strains are inoculated and cultivated by adopting wheat groat strains; the spawn running cultivation is carried out for 35-45 days under the temperature of 20-25 DEG C; the Auricularia hastening and the Auricularia growth are carried out under the temperature of 20-33 DEG C. The invention takes the wasted cotton stalks as main materials of the culturing materials, by matching with a moderate amount of nutrient substances and according to the growth characteristics of the Auricularia polytricha, a cultivating method which is scientific, reasonable and is easy to be popularized is provided from the strain selection breeding to the strain cultivation. The Auricularia polytricha cultivated by the invention has the advantages of low cultivation cost, high yield, sound quality and short vegetation period.

The invention discloses a method for utilizing sorghum bicolor to restore caesium-contaminated soil, and belongs to the technical field of environment plant restoration. The method comprises: planting sorghum bicolor in caesium-contaminated soil, and after sorghum bicolor is mature, harvesting the overground part or integrally moving sorghum bicolor away, so as to reach the purpose of restoring caesium-contaminated soil. Energy-plant sorghum bicolor is high in biomass and strong in adaptability, the growth of sorghum bicolor is not influenced by caesium contamination, and the caesium content accumulated at the overground part of sorghum bicolor is higher than the caesium content accumulated at the roots. The method is friendly to environment, simple in operation and technology, convenient in manage, low in cost and good in restoration effect, provides a new choice for effective treatment of radioactive contaminated soil, and is applicable to the field of treatment on heavy-metal contaminated soil.

The invention relates to a method for using cotton stalks to cultivate the mushroom and belongs to the technical field of edible fungi cultivation; the technical proposal of the invention is that the raw materials which form the cultivating materials is arranged by the following weight parts: 85 to 90 parts of powder of cotton stalks, 5 to 10 parts of cotton seeds and 3 to 5 parts of lime; the arranged dry materials are mixed with 120 to 150 parts of water and then the mixture is fermented; the mushroom culture is inoculated and cultivated by adopting the general culture; hypha cultivation is carried out for 35 to 45 days under the condition of the temperature of 20 to 25 DEG C; the inducement to primordium and the growth are carried out with the temperature of 4 to 28 DEG C. the method of the invention takes the waste cotton stalk as the main material of the cultivating materials, is matched with proper nutrients and provides a cultivating method which is scientific and reasonable and is easy to be promoted from the seed selection to the cultivation according to the growth characteristics of the mushroom; the mushroom cultivated by the method has the advantages of low cost, high yield, good quality and short growth period.

The invention discloses a method for rapid propagation of banana seedlings based on suckers. In the method, a corm root of the sucker is reserved, and a leaf sheath covering above a growth point is then removed through girdling of a knife; and tool marks are cut in the incision surface of the corm, and the corm is then embedded in a clean matrix for cultivation to obtain multiple shoots so as to further cultivate and obtain the banana seedlings. In the method provided by the invention, one banana sucker can be used to breed 30-50 banana seedlings, so demands quantity of the suckers is greatly reduced; and 3-4 months will be spent during production from bud taking to seedling emergence, so the production duration is 4-5 months shorter than the production duration of a tissue culture rapid propagation method, and production cost is greatly saved. The method provided by the invention requires no aseptic technique, puts forward low requirements for techniques and equipment, and is especially applicable to middle and small farms. Meanwhile, the method avoids defects that the tissue culture method has many subcultures and can lead to easy variation, is applicable to conservation and evaluation of banana resources, can effectively make up defects in existing banana rapid propagation methods and can promote healthy development of the banana seedling industry.

The invention provides a Chenopodium quinoa willd cultivation method. The Chenopodium quinoa willd cultivation method comprises the steps of 1, choosing a variety, wherein Chenopodium quinoa willd seeds which have robust growth vigor and many branches and leaves are chosen; 2, choosing a land block, wherein flat land which is good in soil structure, loose in soil quality and high in fertilizer retention and water retention is chosen, drainage is good, pH of soil is at 5.5-5.8, the organic matter content is 15-70 g / kg, the available nitrogen content is 100-200 mg / kg, and the available potassium content is 100-1600 mg / kg; 3, erecting a warehouse, wherein the warehouse is erected in the planting land block, the temperature in the warehouse at night in winter is kept at 15 DEG C or above, and the temperature in the day is kept at 20-25 DEG C; in a hot season in summer, the side face of the warehouse is uncovered, and ventilation is kept.

The invention discloses a straw-wound composite pipe and a preparation method thereof. The composite pipe sequentially comprises a lining layer, a reinforcement layer and an outer protection layer from inside to outside in the pipe diameter direction, wherein the reinforcement layer comprises a plurality of straw layer formed by winding of straw stems. The method comprises the following steps: removing the other parts of straw except the stems, drying the stems and then cutting the stems in the same length; preparing the lining layers from fabric and an adhesive; conveying the straw stems in the same direction onto mesh fabric so that the straw stems are laid on the mesh fabric parallelly and densely, then compressing the laid straw stems into a sheet, next sewing the straw stems, dipping the sewn straw stems in gum in a gum dipping tank with conveying of the mesh fabric, the winding the straw stems on the lining layer, and solidifying the straw stems to obtain the reinforcement layer; and preparing the outer protection layer outside the straw structure layer. According to the invention, the straw is wound to form the straw-wound composite pipe which can be widely applied in the fields of agricultural irrigation, drainage, building ventilation and the like, is green and environment-friendly, has a light weight, is low in cost and fully utilizes idle resources.

The present invention discloses an agricultural planting technique, which relates to a novel method for culturing shallots with a scientific water culture technique without season limitation, particularly to a shallot water culture method suitable for all seasons, namely a technical method for culturing shallots with water or nutrient water. The shallot culture method is simple as well as scientific. The method has the advantages of small land occupation, low cost, environmental protection, cleanliness and broad application range. The shallots cultured have the advantages of high yield, good quality, green vegetables and good benefit. Shallots can be cultured at all places in China without climate and season limitation by plastic covered greenhouse and low tunnel greenhouse culture techniques, or ambient temperature protection water culture methods, etc. Nutritious green shallots free of pollution can be cultured with water or nutrient water. The shallots are safe and health for people to eat. The annual yield of the shallots cultured without season limitation reaches 15 thousand kilograms per acre, the benefit is more than 10 times of that of shallots planted by the traditional method, and the good benefit of 50 to 60 thousand yuan can be obtained for each acre of shallots cultured with water each year.

The invention discloses a high-yield and high-quality cultivation method for an anti-wilt banana variety. The method comprises the steps that the low-order planting anti-wilt banana variety is adopted for tissue culture seedlings; when the low order means soil preparation or planting, the ground of a planting hole is lower than a garden bed face, a step is formed, the paddy field banana garden level difference is 8-15 cm, and the mountain land banana garden is 14-22 cm; when banana plant corms begin to appear, earthing is performed to protect corms, and root growth is promoted. During early spring planting, the low planting density is adopted, plants can fruit earlier, and plants are prevented from fruiting or being frozen in winter; in summer and autumn, high planting density is adopted for planting, the yield per unit area can be increased, and meanwhile fruit quality is not affected; paper bags and nutritional agents are used for plant ears, so that the problem that fruits become green physiologically can be solved. According to the high-yield and high-quality cultivation method customized for the anti-wilt banana variety, the culture technology can achieve high yield, good quality and high benefits and achieves the great production significance.

The invention discloses a ripe tomato one-time harvesting type cultivation method. By main vein pinching for cultivating tomato multiple branches, synchronous formation of first inflorescences, flowering, fruiting and maturing of all branches are realized. Corresponding plant physiological and agricultural operation regulation measures are adopted aiming at the target, and moisture and nutrient management and light and temperature regulation are carried out in different stages to realize group high-density branching in unit area and short-period high yield on the premise of a conventional planting quantity of tomato seedlings. By adoption of the method, one-year multi-crop cultivation of tomatoes in unit area can be realized, one-time harvesting in each crop is realized, and accordingly tomato quality controllability is realized while diseases and pest damages are reduced, consumption of pesticides is avoided, and convenience in implementation of mechanical harvesting is achieved.

The present invention relates to the field of aquatic feeds and particularly relates to a health-care feed used for a stichopus japonicas southward cultivating after an aestivation. The health-care feed comprises the following compositions and dry matter formula in ratios: 30%-40% of sargassum thunbergii powder, 6%-10% of ulva pertusa powder, 3%-5% of spirulina platensis powder, 15%-18% of high gluten flour, 15%-20% of fermented soybean meal, 3%-5% of white fishmeal, 2%-4% of shrimp powder, 2%-3% of oyster shell powder, 0.3%-0.4% of compound vitamin, 0.5%-0.6% of compound mineral salt, 2%-4% of montmorillonite and 0.3%-0.5% of yeast cell wall. By using a scientific formula proportion and adding active ingredients, the health-care feed gives the stichopus japonicas balanced and special nutrition supply in the critical period of the cultivating. The feed is strong in attractant, good in palatability and high in utilization rate, can significantly accelerate the body constitution recovery of the stichopus japonicas cultivating after the aestivation, and effectively improves the growth rate and rate of the weight of skins to total weight. The main feed raw materials are natural ingredients, and the feed does not produce negative impacts on cultivating water bodies and surrounding waters during the use and is green and environment-friendly products.

The invention discloses a method for propagating raspberry by cell culture, which is characterized by comprising the following steps of: selecting young and tender stem segments and stem tips of the raspberry to serve as explants, disinfecting the explants, cutting the explants into stem segments with axillary buds, inoculating the stem segments with the axillary buds to a sterilized induction culture medium to culture and grow lateral buds, and performing successive transfer culture; cutting the lateral buds into small blocks, and inoculating the small blocks to a culture medium in a test tube to culture and grow young leaves; taking a sprouting seedling out of the test tube, inoculating the sprouting seedling to the culture medium to perform rooting culture, opening a culture flask widely for tempering the sprouting seedling when adventitious roots grow out on the base of a bud, and then transplanting the seedling to a seedling bed; preparing the seedling bed with a matrix, taking a test-tube plantlet out of the culture flask, putting the test-tube plantlet into warm water to wash off the culture medium, dipping the test-tube plantlet into IBA solution, and transplanting the test-tube plantlet to the seedling bed; and shading the transplanted test-tube plantlet and preserving the moisture of the test-tube plantlet during the initial stage of transplantation, culturing the test-tube plantlet on the seedling bed for 22 to 28 days, transferring the test-tube plantlet into a nutrition pot, and finally transplanting the test-tube plantlet into a large farmland. The method propagates seedlings of the raspberry quickly by using a tissue culture technique, accelerates desertification control and ecological restoration in China and promotes the development of regional economic constructions.

This is a processing method of a triple layer fir wood multiplex floor. Water contend is 11-13% for face board, 8-10% for base board and 11-13% for middle board. During cold gel pressing, gel coating amount is 180-220g / m2 for face board, and 260-300g / m2 for base board. Solidify agent amount is 10-15%. Standing time is 20-50 minutes. Cold pressure is 10-15kg / cm2.

The invention discloses a plant purification method for reducing SO2 concentration in air of an industrial area, which comprises the following process steps: planting one or a combination of oleanders, sycamores and weeping willows serving as roadside tree species at intervals of between 150 and 200 cm in plant areas and peripheral regions, performing lawn planting on Lucerne, gardenias, China roses in a hunk of space areas or planting the combination of the Lucerne, the gardenias, the China roses into a lawn, planting the oleanders, the sycamores and the weeping willows alternately for matching, and planting small trees among the plants sporadically; loosening and ploughing a ground substance at intervals of half a month during planting, appropriately introducing animals, such as earthworms and the like to loosen the ground substance, spraying and washing the dust on leaves of the planted plants, adding biological growth promoters into the plants or inoculating part of mycorrhiza organisms, watering fertilizers of leaf surfaces supplementarily, and harvesting the leaves shed naturally at any time. The plant purification method has the characteristics of no secondary pollution to environment and high absorption enrichment amount of the sulfur dioxide, soil and water loss prevention and control, environment beautification and the like.

The invention discloses a mulberry leaf for being eaten by forest musk deer and a preparation method of the mulberry leaf. The mulberry leaf is prepared from 100-120 parts of mulberry leaves and 10-30 parts of a mixed solution of cane sugar and formic acid and has the advantages of rich nutrients, good palatability and high digestibility. The preparation method comprises the steps of slicing fresh mulberry leaves, uniformly spraying the mixed solution containing cane sugar and formic acid to the surface of two surfaces of the sliced fresh mulberry leaves to obtain preprocessed mulberry leaves, and carrying out air-tight fermentation. The mulberry leaf has the advantages of simplicity, convenience and practicability, and the problem that roughages of the forest musk deer are insufficient in winter and spring is solved.

The invention discloses a breeding method for limited fruit branch type short-season cotton suitable for being planted in Yangtze River valley cotton areas, and relates to the field of crop breeding. The method has the advantages that the integral analysis is performed on the basis of agricultural natural resource conditions of light, temperature, water, soil and the like in the Yangtze River valley cotton areas; short season cotton varieties (limited growth type early-maturing cotton germ plasm) in Yellow River valley cotton areas are used as male parents to be treated by breeding methods such as hybridization, backcrossing and system selection with cotton varieties (high-quality high-yield and high-adaptability cotton germ plasm) in the Yangtze River valley cotton areas; disease-resistant high-temperature-resistant high-yield and high-quality new limited fruit branch type short-season cotton varieties adapting to the mechanical high-density planting in the Yangtze River valley cotton areas are obtained.

The invention provides a method for controlling sand dunes in high cold regions and an application thereof in grassland restoration, and relates to the technical field of desertification control. Themethod is based on the looseness and fluidity of mobile sand dunes and quicksand on a sand dune chain surface, utilizes the natural climate characteristics, such as obvious seasonality, concentrated rainfall, short plant growth period and the like in the first meander of Yellow River, combines the existing control technology and experience of desertification and degradation of plateau grassland, comprehensively researches and develops, and puts forward a key technology of double sand fixation and double grassland restoration of 'new sand fixation materials + dominant protection species' with innovative development thinking. Through the method and the application of the method, the technical problems of sand dune fixation and grassland restoration which is not solved for many years due to heavy wind and sand, violent sand layer flow, fast sand dune advancing speed and the like on the river terrace in the first meander of Yellow River are successfully and effectively solved.

The invention belongs to the field of biotechnology, and discloses a method for extracting DNA from Xinjiang garlic wild relative species. The method mainly comprises: collecting mature seeds in a primary environment, and naturally drying, wherein the same batch of the seeds achieving the safe water content are used for extracting DNA; placing the seeds in a mortar, rapidly grinding into powder, adding an extraction liquid, placing into a water bath pot, leaching, and carrying out centrifugation; taking the supernatant, adding chloroform-isoamyl alcohol, and carrying out centrifugation; takingthe supernatant, adding chloroform-isoamyl alcohol again, and carrying out centrifugation; taking the supernatant, adding pre-cooled isopropanol, precipitating, and carrying out centrifugation to obtain a precipitate; and discarding the supernatant, adding ethanol, rinsing the precipitate, removing the supernatant, carrying out natural air-drying, and adding double distilled water to completely dissolve the precipitate so as to obtain the DNA extraction raw liquid. According to the present invention, the accurate identification is achieved during the taking of the Xinjiang garlic wild relative species, the work is safe, and the efficiency is high; and the DNA extraction operation process has the low coat and is rapid, and the interference caused by sulfur-containing compounds and other components can be effectively reduced so as to obtain the high-quality seed genomic DNA.

The invention discloses a greenhouse stock grafting, propagation and seedling method for nectarines. The method comprises the following steps: a wild peach seedling provided with ground diameter being 1.0-1.4cm and full terminal buds and not suffering from pest or disease damage is selected; a nectarine mother tree which grows vigorously without pest or disease damage is selected, a fully-developed current grown branch, which has the branch diameter being 0.8-1.0cm and a full main bud, on the periphery of the middle part of a crown is cut off and taken as a scion, a shrinkage segment at the root is cut off for 1-2cm, and the root is immersed in NAA (naphthalene acetic acid) at 500-600 mg / L; on the day before grafting, a nursery land is thoroughly irrigated, the scion with a petiole is cut in early July for budding, and the scion is coated with film for moisture preservation after grafting; full-exposure spray management is adopted after grafting, the day temperature is maintained at 15-25 DEG C in the greenhouse, the soil humidity is kept at 70%-90%, and foliage fertilizer is sprayed three times. By using the method for grafting, propagation and seedling of the nectarines, the seedling rate is 89.65% or more, the survival rate is 96.2% or more, the qualitative characters of grafted seedlings of the nectarines are outstanding, and stress resistance is high.

The invention relates to a material and a method used for dust removal and dust prevention in air. Effective components include maltose, sodium lignosulphonate, corn hemicelluloses, sodium alginate, guar gum, glycerinum, rosin resin, calcium chloride and urea. The material can effectively adsorb the dust to result in aggregation and settlement, and a proper dosage of material is used for processing a solid surface on which dust tends to raise or air in regions with formed haze or other dust or aerosol pollution by adopting an atomizing manner. According to the invention, the technical scheme of taking the material with nano micro viscosity as the basis can be used initiatively, and small dust particles can be captured in different ranges, so that the dust can settle through agglomeration; dust of 10 microns, 2.5 microns and below in air can be effectively removed, so that the danger to human health caused by fine particulates can be alleviated.

The invention discloses a method for planting isatis roots in desert ecological restoration regions. The method comprises following steps: S1, soil preparation; S2, land cultivation; S3, medicine application; S4, film laying and sowing through a mechanical manner; S5, fertilizer application; and S6, mechanical harvesting. By employing the method, a high yield of the isatis roots can be achieved, the isatis roots are antibacterial, continuous cropping is prevented, and the isatis roots can be planted on a large scale in a standardization manner. By employing the method, the working efficiency is 50-60 times of the working efficiency through manual operation; all indexes of the planted isatis roots meet requirements mentioned in Good Agriculture Practice (GAP); the investment cost is low; benefits are high; and a high yield of the isatis roots can be achieved.

The invention relates to a split bamboo material soil nail. The inclined and downward split bamboo material soil nail is inserted into a foundation pit side wall soil layer, the lower parts of at least two split bamboo strips are fixed with a middle bamboo tube at a certain space, lower through holes are perforated at the upper bamboo joints of the split bamboo strips, bamboo fixing pins are inserted into the lower through holes, two vertical locking bamboo strips are bound under the locking bamboo pins, cement mortar or cement slurry is filled in soil layer drill holes, protection slope concrete is divided into two layers, a bamboo strip net piece and a reinforced bamboo strip are placed on the first layer protection slope concrete, and the locking bamboo pins and the vertical locking bamboo strips are buried in the second layer protection slope concrete. When the bottom of a foundation pit is a soft and weak soil layer, downward bamboo pipe piles can be beaten into the soil layer, the middle bamboo joints of the bamboo pipe piles can be in a penetrated way and is filled with concrete for enhancing the rigidity. The split bamboo material soil nail has the advantages that the structure is unique, the construction method is simple, various cheap, environmental-protection and natural bamboo materials can be used for replacing steel bars to be used as a body structure of the deepfoundation pit soil nail wall protection, the construction safety of the foundation pit is ensured, and the construction cost is reduced.

The invention relates to the technical field of Chinese herbal medicine cultivation, and specifically discloses a rapid propagation and cultivation method of wild Qizhi peach. The method includes thefollowing steps: I. preparing before sowing and breeding seedlings: (1) building a nursery shed and leveling nursery land; (2) making seedling raising base soil; and (3) making a seedling bed and a seedling bag; II. seed harvesting: (1) seed harvesting; and (2) seed sowing; and III. seedling raising and transplanting management. According to the method, the fresh fruit of wild Qizhi peach can be used for artificial propagation and cultivation, and has the advantages of fast propagation, short growth period, developed root system, high yield and the like.

The invention relates to a method for preserving catalpa bungei grafted seedlings after beginning of autumn. The method comprises the following steps: grafting catalpa bungei by taking catalpa as a rootstock, soaking 6-benayl aminopurine during grafting, and spraying growth regulation liquid; smearing a Bordeaux mixture on a full stand after grafting, preserving in a dark wet environment, and restraining the growth of the catalpa bungei grafted seedlings by abscisic acid, ethephon, potassium sodium tartrate and complex amino acid flour. The method is easy to operate; by adopting the method, the defect that grafting cannot be performed in winter is overcome, and the grafting time is prolonged; meanwhile, the time for transplanting the catalpa in spring is put forward, the early-spring transplanting growth period is put forward, and the annual height of the rootstock is over 3 meters; the method has the advantages of quick return of rooted seedling planting, longer growth period, high seedling growing speed, high dryness, attractive tree form and high rootstock quality.

The invention relates to technical field of fermentation, in particular to a culture medium applied to production of laccase from solid fermentation of tramete. The culture medicum comprises the following raw materials in percentage by weight: 38-45% of hickory shells, 2-10% of rapeseed dreg powder and the balance of water. The sterilized and cooled culture medium is inoculated into a bran culture, and put in a solid fermentation tray for fermentation. After the tramete is inoculated into the culture medium, the growing period is short, so that the laccase can be rapidly produced, the fermentation period is 5-9 days, and the fermentation time is shortened. Moreover, the lignocellulose can promote the tramete to produce the laccase, so that the production efficiency of the laccase can be greatly improved through the culture medium provided by the invention. The growth of various infectious microbes can be prohibited by polyphenol in the hickory shells, and the tramete can grow in the hickory shells, so that the contamination rate can be reduced because of the culture medium provided by the invention.

The invention relates to environmentally-friendly putty powder, which is prepared from the following raw materials by weight: 50-60 parts of heavy calcium powder or talc powder, 25-35 parts of ash calcium or lime powder, 20-25 parts of bamboo powder, and 3-5 parts of a glue. According to the present invention, the environmentally-friendly putty powder is the interior wall putty, is added with thenatural bamboo powder, and further comprises other raw materials, such that the obtained environmentally-friendly putty powder can effectively inhibit bacteria and sterilize, and the current situationthat the wall easily produces mildew after wetting; bamboo has a short growth period, can grow in 2-3 years, and can be operated for a long time after one planting so as to provide advantages of wideresource and environment protection; the glue consumption is reduced while the plant glue is used, and formaldehyde and other harmful substances are not used; the use operation of the product is simple, wherein the product can be used only by adding water and stirring during the construction; the polished putty surface has advantages of smoothness, crack resistance, good water resistance and goodalkali resistance; the product has strong adhesion, and can effectively fill the substrate; and no odor is generated during the coating and the scraping so as to achieve the advantages of environmentprotection, safety and reliability.