176 results about "Pine sawdust" patented technology

The invention discloses clay molding sand for cast steel and a preparation method thereof. The clay molding sand is prepared from the following raw materials in parts by weight: 60-80 parts of quartz sand, 20-30 parts of forsterite sand, 8-12 parts of bentonite, 5-8 parts of composite powder, 4-6 parts of talcum powder, 2-3 parts of nanometer aluminum oxide, 3-5 parts of pine sawdust, 2-4 parts of alpha-starch, 1-2 parts of dextrin, 3-6 parts of calcium phosphate, 1.5-2.5 parts of sulfite lye and 4-8 parts of water. The molding sand is high-temperature resistant, high in strength and high in impact resistance, can be used for overcoming the defects on hot spot parts and avoiding sand adhesion, and a phenomenon that the sand mold is broken due to impact force of liquid steel casting is avoided. Moreover, the clay molding sand is low in air release amount, good in air permeability effect and high in liquidity, the defects of air holes, cold shut and shrinkage porosity in the casting can be effectively overcome, and the yield of the casting is improved.

The invention provides a formula of a culture medium for industrial production of sparasis crispa and a production process. The formula of the culture medium comprises the following components in percentage by dry weight: 65 to 75 percent of pine sawdust, 10 to 20 percent of husk, 5 to 10 percent of potato powder, 5 to 10 percent of flour, 0.1 to 0.5 percent of peptone, 0.1 percent of ammonium sulfate and 1.2 to 1.8 percent of brown sugar. The production process comprises the following steps of: preparing and bagging the culture medium; sterilizing and inoculating; culturing hypha; inducing a primodium; differentiating the primodium; opening the bag; managing balls; and harvesting. The invention provides a formula of a culture medium for industrial production of sparasis crispa, which has the advantages of rich nutrition, balanced proportion, good ventilation, and capacity of meeting the requirement of industrial production. The production process has the advantages of short hypha culturing time, uniform fruiting at bag openings, good fruiting consistency, convenience of management, contribution to industrial culture, white mushroom body, high yield, and high biological transformation rate of over 43 percent.

The invention discloses compound fertilizer having growth promotion and high slow-release properties and used for rice planting. The compound fertilizer is prepared from raw materials as follows: ammonium nitrate, monopotassium phosphate, urea, urea phosphate, calcium superphosphate, ammonium dihydrogen phosphate, potassium sulfate, magnesium sulfate, potassium nitrate, amino sodium dicarboxylate, Trichoderma, yeast powder, straw fermentation bacteria, cellulase, potassium mineral powder, rare earth, low-rank coal, silico-calcium powder, turf powder, fly ash, pine sawdust, kaolin, rice hull powder, poultry manure, maize straw, blue-green alga powder, dolomite, diatomite, calcite, humic acid, lignin, EDTA (ethylene diamine tetraacetic acid) chelate zinc, amino acid chelated molybdenum, dicyandiamide, phosphoric triamide and a modified slow-release agent. The invention further discloses a preparation method of the compound fertilizer having growth promotion and high slow-release properties and used for rice planting. The compound organic fertilizer has outstanding slow-release performance and can effectively increase the rice yield and improve the rice quality.

The invention discloses a seedling substrate for garden plants and a preparation method of the seedling substrate. The seedling substrate is prepared from the following raw materials: saw dust, corncob, soybean straw, peanut shells, pine sawdust, cedarwood dust, distillers' grains, pyrethrum straw, bagasse, rice husk, peat soil, vermiculite, medical stone, lintonite, sphagna, carbendazim, cow dung, a zymophyte solution, inorganic fertilizers, gentle willow twigs, pine needles, tobacco leaves, wormwood, camphor leaves, agastache rugosus leaves and water. The seedling substrate for the garden plants, which is disclosed by the invention, is not only rich in various plant active substances and beneficial to growth and development of seedlings, but also very good in disease resistance, the insect expelling effect can be maintained for a long time, no pesticide product is added, soil and ambient environments can be protected, the seedling substrate can be very well fused with the soil and the environment after a certain time, adverse influence caused by pesticides can be reduced, prevention and treatment of insects and diseases in later management can be facilitated, and labor cost and economic cost of daily maintenance can be reduced.

The invention discloses a diatom-ooze indoor-wall decoration material. The diatom-ooze indoor-wall decoration material is prepared by matching diatomaceous earth, plant debris, an adhesive, a thickening agent and a pigment according to proportion and mixing. The product produced by adopting a method is used for decorating the indoor wall, has the effects of adsorbing and decomposing formaldehyde, benzene, toluene, xylene and ethylbenzene and solves the problem of pollution to environment of other indoor-wall decoration materials. The components of the diatom-ooze indoor-wall decoration material are natural plants such as pine sawdust, camphor chips, lavender, wormwood and crop straw, can send out plant aroma persistently to endow the indoor space with natural flavor so that people can relax, are good for physical and mental health and have crack resistance. The surface of the wall decorated by the diatom-ooze indoor-wall decoration material is visually soft and full and looks like the pile surface in texture. Having the advantages of the porous structure and the large specific surface area of the diatomaceous earth and plant fibers, the diatom-ooze indoor-wall decoration material has the effects of humidifying automatically, preventing moisture condensation, insulating heat, resisting against mildew and mites, sterilizing, deodorizing and treating decoration pollution syndromes. As the pine sawdust, the camphor chips, the lavender, the wormwood and the crop straw are used as the raw materials for producing the diatom-ooze indoor-wall decoration material, a new way is provided for the comprehensive utilization of agricultural and sideline products. The method for producing the diatom-ooze indoor-wall decoration material is simple and is easy to implement.

The invention discloses a blueberry soil conditioner and a preparation method thereof. The blueberry soil conditioner is prepared from the following ingredients in weight ratio: 40-60 parts of water-washed cow dung, 10-20 parts of furfural-residue, 10-25 parts of sawdust, 0.1-0.2 part of a decomposition agent, 3-6 parts of land plaster or 2-4 parts of ferrous sulfate, 15-25 parts of grass carbon and 0.5-1.5 parts of sulphur; the preparation method comprises the following steps: the water-washed cow dung, the furfural-residue, the pine sawdust, and the decomposition agent are mixed uniformly, and then aerobic composting fermentation is conducted; when the temperature of the compost reaches 57-62 DEG C, the land plaster or the ferrous sulfate is added, and fermentation is performed continuously; grass carbon and sulphur are added when the compost is cooled to 48-50 DEG C, uniform stirring is performed, air-drying is performed, and then screening and bagging are performed, so that the blueberry soil conditioner is obtained. The blueberry soil conditioner provided by the invention can regulate the pH value of soil to a range suitable for blueberry growth, prevent the rapid decomposition of organic matters in the soil conditioner, maintain that the organic matter content of soil is higher for a long time, promote the blueberry growth, increase yield of blueberries and improve the quality of the blueberries, meanwhile, resources are used comprehensively, environment is protected, and remarkable ecological and social benefits are achieved.

The invention discloses a method of culturing poria cocos through bag materials. Aimed at the problem that a method of culturing the poria cocos through a cut log cellar consumes a large amount of wood, the method of culturing the poria cocos through the bag materials is simple, practical, and low in production. The raw materials comprise pine sawdust, rice bran, gypsum, cane sugar and calcium superphosphate. The operation method includes the steps of raw material stirring, bagging, sterilization, inoculation, ditching, planting of fungus barrels and harvest. The poria cocos can be harvested within 8-10 months by means of the method.

The invention relates to an insecticide for killing termites and a preparation method of the insecticide. The powder comprises the following components in parts by weight: 1-10 parts of 98.1% chlorfenapyr raw powder, 1.7-2.5 parts of vanillin and 88-97 parts of talcum powder. The powder is prepared by evenly mixing and stirring the components. The bait comprises the following components in parts by weight: 0.1-5 parts of 98.1% chlorfenapyr raw powder, 68-73 parts of pine sawdust, 6-8 parts of soft sugar, 17-19 parts of agar powder, 0.1-0.2 part of potassium sorbate and 1.7-1.9 parts of vanillin. The preparation method of the bait comprises the following steps: weighing and evenly stirring 98.1% chlorfenapyr raw powder, pine sawdust, soft sugar and vanillin; weighing agar powder and adding distilled water and evenly mixing, and heating to starchiness; adding potassium sorbate and evenly mixing the mixture; then mixing the mixture obtained from the former with the mixture of 98.1% chlorfenapyr raw powder, pine sawdust, soft sugar and vanillin; and processing the mixture obtained from the former into strips, bulks or balls to prepare the insecticide. The insecticide has the beneficial effects that: the effect for killing termites is good; the usage amount of the insecticide is greatly reduced and the environmental pollution is effectively lessened; and the preparation and the usage method are convenient, simple and rapid.

The invention discloses a method for preparing activated charcoal from paper mill sludge and pine through co-pyrolysis. The method is characterized by comprising the following steps: (1) pretreating paper mill sludge; (2) airing and grinding pine sawdust; (3) fully mixing the sludge and the pine sawdust; (4) arranging the mixture in a pyrolyzing furnace feeding hopper, and performing constant temperature pyrolysis in an inert atmosphere; (5) heating for reacting at constant temperature until no gas is generated, and naturally cooling to room temperature, thereby obtaining charcoal; and (6) putting the charcoal into a sulfuric acid solution with the concentration of 2.5-3.5 mol / L, introducing nitrogen, reacting at the constant temperature of 500-600 DEG C for 20-40 minutes, and naturally cooling to room temperature, thereby obtaining the activated charcoal. The activated charcoal is prepared by a paper mill sludge and pine co-pyrolysis process, a sludge drying process is not needed, chemical components of adsorbents are improved, and a certain effect of activating the charcoal can be achieved by steam formed by moisture in the sludge at high temperature, so that the adsorption capacity of the charcoal is improved, and an ideal adsorption effect is obtained.

The invention discloses a preparation method for a substrate for planting edible fungus. The preparation method is characterized by comprising the following steps: (1), treating walnut shells, crushing the walnut shells into particles with diameter less than 10mm, soaking the walnut shells in plant ash water for 24-48 hours, and treating for later use, wherein weight of the plant ash water is 2-6 times the weight of the walnut shells; (2), treating mulberry branches and roasted tobacco stems, and crushing pine sawdust into particles less than 10 mm, respectively crushing the mulberry branches, the roasted tobacco stems as well as the pine particle tobacco stems and pine sawdust into particles with diameter less than 15mm to carry out terpene removal and ungrease treatment for later use; (3), mixing 30-60 parts (in parts by weight) of the walnut shells, 10-20 parts of the mulberry branches, 10-20 parts o the pine sawdust and 10-20 parts of bran or rice husk, adding 0.5-1 part of glucose and 1 part of gypsum for mixing. The method disclosed by the invention can sufficiently utilize the walnut shells which are normal and cheap raw materials in Yunnan to cultivate the edible fungus in an environment-friendly manner.

The invention relates to the technical field of agricultural planting, in particular to a formula of a medium for planting dendrobium officinale. The medium comprises an upper layer and a lower layer. Pine bark and pine sawdust with different diameters serve as main raw materials of the upper layer, and limestone serves as an auxiliary material. The lower layer is a cement layer underlaid with a sunshade net. Decomposed pine bark and disinfected limestone are mixed evenly at the ratio of 6:4 or 5:5 and then laid on the lower layer. The formula of the medium is environmentally friendly, low in cost and wide in material source; by adopting the formula of the medium for planting dendrobium officinale, higher water retentivity, supervenience and air permeability are achieved, material bases and sources of sand storms are reduced, and innovation of the formula of the medium for planting dendrobium officinale is achieved.

The invention discloses a powder metallurgy high-strength bearing material and a preparation method thereof. The powder metallurgy high-strength bearing material is prepared from the following raw materials of, by weight, 85-90 parts of aluminum, 5-8 parts of iron, 3-4 parts of copper, 1-2 parts of silicon, 0.5-1 parts of magnesium, 3-4 parts of polytetrafluoroethylene powder, 0.8-1.5 parts of molybdenum disulfide, 2-3 parts of stearic acid, 0.6-1 part of methyl cellulose, 1-1.5 parts of graphite, 1-2 parts of pine sawdust, 0.3-0.4 part of yttrium oxide, 0.8-1.5 parts of carbon microspheres and an appropriate amount of oleic acid. The bearing material prepared through the preparation method has the characteristics such as smaller particle size, uniform distribution, high hardness, high flexure strength, high fracture toughness and good high-low-temperature stability, and is worth popularizing.

The invention discloses a corrosion resistant aerated building block and a making method thereof. The corrosion resistant aerated building block is made from, by weight, 23-27 parts of waste concrete, 28-36 parts of quartz sand, 16-29 parts of pine sawdust, 13-21 parts of porous ceramsite, 18-34 parts of zirconium-silicon slag, 32-46 parts of high sulfate resistance Portland cement, 17-33 parts of pumice, 14-26 parts of kyanite, 22-34 parts of marine dredged sludge, 11-22 parts of desulfurized gypsum, 19-28 parts of calcium carbide slag, 10-15 parts of hawthorn fruit seed powder, 8-12 parts of sodium polystyrene sulfonate, 3.5-5 parts of calcium hydride and a proper amount of water. The aerated building block has the advantages of strong corrosion resistance, strong resistance to acids, alkali, salts and other corrosive media, high strength, good durability, impermeability, low heat conduction coefficient, good crack resistance, safety, environmental protection and durability.

The invention relates to a seedling culture matrix for gumbos. The seedling culture matrix is prepared from, by weight, wormcast, fermented fish viscera, canal mud, livestock manure, humus, pine sawdust, urea, frit, sweet potato leaves, activated carbon powder, fructus viticis extracts, cortex ailanthi extracts, erigeron breviscapus extracts and water. A use method of the fertilizer special for gumbo planting is simple, a large amount of abandoned ort, canal mud and the like are added to the fertilizer, cost can be reduced, pollution caused when the abandoned ort is abandoned at will can be prevented, excellent environments and nutrition can be provided for gumbo seedling culture, organic fertilizer and inorganic fertilizer are used in cooperation, and the utilization rate of the fertilizer is increased.

The invention relates to the field of building materials, and concretely discloses a novel light waterproof building material and a preparation method thereof. The building material is prepared by the following components: diatomite, acrylic ester, phenolic resin, magnesium oxide, heavy calcium carbonate, vegetable fibre, kaolin, gypsum powder, quartz sand, pine sawdust, natural shale powder, a saponifying agent, a wetting agent, a film forming auxiliary, a stabilizing agent, a waterproof agent, a mildew inhibitor, glass fibre and water. The building material of the technical scheme employs a special stirring fabrication process, so that each raw material is fully mixed and raw material performance is not destroyed, and the obtained waterproof paint has excellent properties, such as high adhesiveness, high strength, high waterproofness, heat insulation, and freezing resistance.

The invention belongs to the technical field of mineral processing of direct reduction of iron oxide, and relates to a preparation of a biomass char and a method for preparing sponge iron by applying the biomass char to the direct reduction of iron oxide. The main technology comprises steps such as the preparation of the biomass char, the sponge iron preparation by using the biomass char to directly reduce iron oxide, ore grinding, low intensity magnetic separation and the like. The method is characterized by comprising the following steps of: heating biomass such as corn straw, pine sawdust, leaves, waste paper and the like in design equipment at 450-650 DEG C and thermally insulating, obtaining the biomass char and collecting tar, recycling exhaust gas, and using the prepared biomass char as a reducing agent at 1150-1250 DEG C to directly reduce iron oxide to prepare the sponge iron. The grade of the sponge iron reaches more than 90%, and the recovery rate of the sponge iron is more than 85%. The biomass char in the method has the advantages of low N and low S, and can reduce the discharge amount of CO2. The method also has good effects to metallic compounds such as manganese, chromium, vanadium and the like.

The invention relates to model test material used for simulating phosphorous deposit soft interbed and a preparation method of the model test material. The model similar material comprises, by weight, the following components of 6 portions of natural dried fine river sand with a screen number of 120, 0.6-0.8 portion of building-used gypsum powder of a screen number of 800, 0.9-1.2 portions of ground calcium carbonate powder of a screen number of 600, 0.1-0.2 portion of pine sawdust powder, 0-0.1 portion of industrial alcohol, 0-0.1 portion of edible gelatine, 0.2-0.3 portion of clay, and 1.8-2.0 portions of water. The invention further discloses the preparation method of the material. Strength and elasticity modulus of the similar material are both low, ductility is strong, and Poisson is large. Moreover, the used materials are wide in source and free of poisonous impurities and pollution. The model test material used for simulating phosphorous deposit soft interbed is simple in preparation process, high in preparation efficiency, low in cost and capable of being taken as relatively ideal similar material of a model test of the simulating phosphorous deposit soft interbed.

The invention relates to a tea garden organic composite traditional Chinese medicine desinsectization medicine bag, which is prepared from a compounding agent and traditional Chinese herbal medicine according to the weight ratio of (4 to 8):(2 to 6). The traditional Chinese herbal medicine is prepared from the following ingredients in parts by weight: 10 parts of sandalwood tree leaves, 20 parts of southernwood, 20 parts of wormwood, 10 parts of phoenix tree bark, 5 parts of eucomrnia ulmoides oliv., 10 parts of pepper stems, 10 parts of garlic stems, 15 parts of willow leaves and 10 parts of pine needles; the compounding agent is prepared from the following ingredients in parts by weight: 10 parts of rice hull, 20 parts of camellia oleifera abel peel, 10 parts of pine sawdust, 10 parts of willow saw dust, 5 parts of parasol tree sawdust, 10 parts of yellow cinnamon sawdust, 10 parts of Chinese toon saw dust, 5 parts of wild arbor tree branch sawdust and 20 parts of tabia. The tea garden organic composite traditional Chinese medicine desinsectization medicine bag has the advantages that the raw materials can be easily obtained; the preparation is convenient; economy is realized; the time is reduced; a good prevention and control effect can be achieved on tea diseases and pests; the effect taking speed is high; the effect duration is long; the limitation of common use chemical medicine is avoided; the insect prevention and desinsectization effects are achieved; the original ecology quality is also ensured; the medicine bag conforms to the social green and environment-friendly trend.

The invention provides a planting method for golden mushroom rich in traditional Chinese herbal components. The planting method comprises the following steps: culturing material selection, culturing material treatment, inoculation, and treatment in a later period, wherein the step of culturing material selection is to select the following materials: 30 to 50 parts of pine sawdust, 12 to 18 part ofcow dung, 8 to 13 parts of pig manure, 15 to 22 parts of ochre, 14 to 20 parts of river sand, 3 to 6 parts of corn flour, 7 to 11 parts of beet residue, 6 to 9 parts of bamboo charcoal, 120 to 130 parts of water, 2 to 5 parts of traditional Chinese herb powder and 3 to 6 parts of an extract. The invention has the following beneficial effects: the planting method is convenient to operation, is easy to apply, and facilitates improving yield and edible value of the golden mushroom.

The invention discloses a production method for a high-strength fireproof wooden door. The method comprises the following steps of: (1) preparing a door panel: preparing raw materials in parts by weight: 10 parts of light burned magnesia powder, 2-2.5 parts of magnesium sulfate, 0.05 part of chitosan, 0.05 part of magnesia-alumina spinel, 0.6 part of pine sawdust, 1-1.5 parts of starch sodium octenylsuccinate, 0.8 part of starch phosphate, 0.1-0.2 part of tourmaline powder, 0.8-1 part of andalusite powder, 0.8 part of organosilicon waterproofing agent powder, 0.08 part of nano-silica, 0.1 part of polypropylene fibers, 8-10 parts of water and 2-3 parts of foam; dissolving magnesium sulfate to form a magnesium sulfate solution; adding the other raw materials into the magnesium sulfate solution except the foam, stirring the solution uniformly, then adding the foam, and stirring the solution uniformly to obtain slurry; pre-treating and curing the slurry to obtain the fireproof door panel; and (2) combining a door frame, a door panel decorating surface and the door panel together to obtain the wooden door.

The invention discloses a compound organic amendment and a preparing method for controlling a vegetable root knot nematode disease which fully decomposes a colza cake and pine sawdust among three components of the colza cake, the pine sawdust and castor leaves and then dries and crushes for spare; the castor leaves after fully airing are crushed for spare. According to the weight percentage, each formulation can be prepared by uniformly mixing the pine sawdust plus the castor leaves (1:100 to 100:1) or the castor leaves plus the colza cake (1:100 to 100:1). The invention has the advantage that the effect of killing the wireworm is better than a biopesticide currently used in production. The invention can adjust the soil microflora and improve the soil and can provide more nutrition balances to plants and balance the C / N ratio of soil, thus improving the crop quality, according with the requirements for organic agriculture and having broad application prospect; the invention enhances the ventilation property (heavy soil) or moisture retention (sandy soil) of the soil and improves the efficiencies of draining water and irrigating water.

The invention discloses a quick seedling culturing matrix. The seedling culturing matrix comprises the components in parts by weight: 55 parts of pine sawdust, 30 parts of dishcloth gourd sponge, 8 parts of kaolin, 15 parts of field soil, 4 parts of an inorganic fertilizer, 4 parts of Chinese herbal medicines, and 5 parts of soybean milk. The quick seedling culturing matrix disclosed by the invention uses the pine sawdust and the dishcloth gourd sponge as main raw materials, on one hand, the raw materials are wide in sources and low in cost, and on the other hand, the probability that the matrix using cow dung and chicken manure as the raw materials pollutes environment is also reduced; the soybean milk is added, so that the fertilizer effect of the matrix is improved, plants are easy to absorb the fertilizer effect, and the growth and the development of the plants are promoted. The dishcloth gourd sponge is used as the raw materials of the matrix, so that the matrix can provide nutrient substances, the porosity of the matrix can also be regulated, and the water percolating capacity of the matrix is improved. The Chinese herbal medicines deployed in a fixed proportion provide the fertilizer and can also improve the disease resistance of the plants.

The invention discloses oxygen supply type landscape special fertilizer for degrading a chromium element in soil. The oxygen supply type landscape special fertilizer are prepared from raw materials of dry marsh mud, peat, a rapeseed cake, a mushroom residue, manioc waste, pine sawdust, a modified oxygenating agent, a modified degrading agent, a modified slow release agent, monoammonium phosphate, potassium fulvate, ammonium chloride, ammonium dibasic phosphate, ferrous sulfate, zinc sulfate, ammonium molybdate, compound ammonium nitrate, ammonia sulfate, stannous chloride, sodium hydrogen sulfite, sodium borate, vermiculite, lime powder, kaolin powder and diatomite. The landscape special fertilizer provided by the invention can degrade the chromium element in the soil; the enrichment effect of the chromium element can be avoided; further, the sufficient oxygen can be provided for the growth of a landscape crop; the growth of the landscape crop is promoted.

The invention discloses an organic-inorganic coated fertilizer capable of improving sweetness of strawberry and a preparation method thereof. The organic-inorganic coated fertilizer is prepared from the following raw materials in parts by weight: 43-47 parts of chicken manure, 14-17 parts of rice washing water, 34-37 parts of pine sawdust, 30-32 parts of chestnut shell, 3-4 parts of dolomite dust, 13-15 parts of carbonized straw, 14-19 parts of peat, 7-10 parts of urea, 15-19 parts of ammonium sulfate, 13-16 parts of potassium dihydrogen phosphate, 4-6 parts of potassium sulfate, 8-13 parts of methacrylate, 3-4 parts of mica powder, 1-2 parts of alum, 9-12 parts of fly ash, 5-8 parts of sodium carbonate, 2-4 parts of sticky sorghum powder, 1-3 parts of potato powder, 6-9 parts of an EM bacteria agent, 8-14 parts of a soil conditioner, and an appropriate amount of water. The organic-inorganic coated fertilizer disclosed by the invention is based on understanding of ingredients of soil and strawberry fertilizer characteristics, an organic fertilizer which is free of bacteria and pollution and favorable to the strawberry is prepared by a fermentation method, and according to nutrition proportion of the organic fertilizer, an inorganic fertilizer is added properly, so that the nutrition can be balanced, and yield increase of the strawberry can be ensured..

The invention provides a black fungus bag material containing pine sawdust and a preparation method of the bag material. The black fungus bag material consists of the following components in percentage by dry weight: 1-30 percent of pine sawdust, 50-80 percent of mixed wood sawdust, 18 percent of bran, 1 percent of gypsum powder and the balance of water for achieving the water content of 60-65 percent. The preparation method comprises the following steps: firstly, treating the pine sawdust, namely blending the pine sawdust into 2-3% lime water to kill harmful bacteria to ensure that the water content reaches 65 percent, stacking for fermenting, turning when the material temperature rises to above 60 DEG C, and then turning once every other 4-5 days, totaling in turning three to four times; secondly, preparing a culture material, namely adding the weed wood sawdust, the treated wine sawdust, the bran and the gypsum powder according to proportions according to the formula requirements; finally stirring and bagging, namely uniformly stirring the raw materials added according to the proportions, adding water till the water content is 60-65 percent, and bagging; sterilizing, inoculating, fruiting and harvesting according to the conventional bag material. According to the black fungus bag material and the preparation method provided by the invention, the black fungus is cultured by using the pine sawdust to substitute partial weed wood sawdust, so that the raw material source for cultivating the black fungus is broadened, the forest resource is protected and the environmental pollution is reduced.

The invention relates to a compound fertilizer for promoting longan growth, belonging to the technical field of compound fertilizers. The compound fertilizer is composed of two parts of a matrix and an auxiliary body, wherein the matrix comprises the following components in parts by weight: 10-20 parts of silicon oxide, 10-20 parts of calcium phosphate, 10-20 parts of magnesium oxide, and 10-20 parts of potassium oxide, and the auxiliary body comprises the following components in parts by weight: 5-10 parts of pine sawdust, 5-10 parts of rice hull powder and 15-25 parts of urea. The compound fertilizer is capable of greatly enhancing fertility of longan field, high in fertility, suitable for the longan field, capable of promoting longan growth and ensuring plump fruits, simple in components, safe to transport and store, convenient to use, good in stability and lasting in fertility.

The invention discloses a willow seedling substrate which is mainly prepared from the following raw materials: coco coir, humic acid, mulberry wood, cow dung, vermiculite, lime sludge, bagasse, banana trees, pine sawdust, straw mushroom residues, distillers' grains, silkworm excrement and diatomite. The willow seedling substrate disclosed by the invention is reasonable in formula, the preparation raw materials are easy to obtain, and moreover as a relatively small amount of peat is used in the willow seedling substrate, the use amount of non-renewable resources can be reduced. When being used for cultivating willow seedlings, the willow seedling substrate is high in survival rate of nursery stock, good in growth situation of willow in later growth periods and high in planting percent. In addition, the willow seedling substrate is simple in preparation method, convenient to apply and easy to master.

The invention discloses a sparassis crispa culture medium adopting pine and fir sawdust as raw materials and sparassis crispa culture method thereof. The water content of the medium is 60-65%, and themedium is prepared from, by dry weight, 75% of sawdust, 25% of corn flour, 2% of saccharose, 2% of gypsum and 1% of calcium superphosphate, wherein the sawdust is prepared from, by dry weight, 40-80%of pine sawdust and 20-60% of fir sawdust. Fire sawdust is adopted for replacing some pine sawdust in the culture formula, the breathability of the culture medium can be improved, mycelial growth ispromoted, the sparassis crispa fruiting synchronism is good (100-110d), the fresh edible fungus yield is 200 g per bag, the biology efficiency is 55%, meanwhile, the price of fire sawdust is lower than that of pine sawdust, and the production cost can be lowered to a certain degree.

The invention discloses an agaric culture medium. The agaric culture medium is prepared from the following raw materials in parts by weight: 50-60 parts of pine sawdust, 10-20 parts of agaric residues, 10-20 parts of cassava residues, 10-20 parts of sweet potato residues, 1-3 parts of houttuynia cordata, 4-6 parts of artemisia vulgaris and 1-2 parts of gypsum. The agaric culture medium has the characteristics of abundant nutrients and high quality of cultivated agarics.

The invention discloses an antibacterial aroma-enhancing fresh-keeping material and a production method of a Songhua preserved egg, and belongs to the field of production of preserved eggs. The antibacterial aroma-enhancing fresh-keeping material of the Songhua preserved egg is mainly prepared through mixing the following raw materials in parts by weight: 60-70 parts of milk of lime, 15-25 parts of lake mud, 1-10 parts of table salt, 1-10 parts of traditional Chinese medicinal material soup and 1-10 parts of pine sawdust. Compared with the prior art, the production method has the following advantages: the Songhua preserved egg is wrapped by the special fresh-keeping material for quality keeping and fresh keeping, the purely natural aroma of pine sawdust is utilized, and the special aroma of the Songhua preserved egg is fully reserved based on the traditional technology of wrapping Songhua preserved eggs with mud and the modern traditional Chinese medicine antibacterial technology for egg products, so that the wrapping thickness, golden yellow ornamental color and luster, aroma and taste of the product are improved; food additives, food compounds and preservatives are not added, so that the production method conforms to the requirements of easy operation, low cost, cleanness, environmental friendliness, reliable quality, bacteriostasis and mold prevention, and has good popularization and use value.