108results about How to "Avoid chemical contamination" patented technology

The invention discloses a biological mixed bacterial fertilizer and a preparation method and application thereof. The biological mixed bacterial fertilizer is prepared from, by weight, 1-20 parts of a compound bacterial agent, 300-400 parts of organic materials, 500-600 parts of inorganic materials, 800-1000 parts of chemical fertilizers, 5-10 parts of trace elements, 300-500 parts of waste liquid, 30-50 parts of amino acid salts and 50-100 parts of additives.

The invention relates to a fertilizer and a process for preparing the same, in particular to a green organic crop microorganism fertilizer. The microorganism fertilizer is characterized in that the microorganism fertilizer is prepared by the mix-fermentation of eight bacterial communities of photosynthetic bacteria, azotobacter, actinomycete, lactobacillus, yeast, root fixing bacteria, potassium bacteria and phosphorus bacteria, a plurality of beneficial microbial agents, coal gangue powder, lignite, straw carbon, humic acid, crop straw powder and excrement. Tests show that the microorganism fertilizer has obvious effect on the growth of corn, broomcorn, cereal, legume, paddy rice, fruits, flowers, pasture and the like, the production increasing rate is between 15 and 30 percent, and the microorganism fertilizer has obvious function on resisting diseases, lodging and insects, and can replace pesticide, fertilizer and hormone, avoid chemical pollution, improve soil fertility and product quality, and make the product become green or organic standards; and particularly, various crop straw and excrement are used as a carrier, thereby further lowering cost of the microorganism fertilizer and opening up a new path for the popularization and application of the microorganism fertilizer.

The invention discloses a method for treating eutrophic lake cyanobacterial bloom. An enclosure parallel to the local prevailing wind direction is built to block water flow exchange, and large lake cyanobacteria are prevented from entering a control water area. By means of the characteristic that the cyanobacteria floating on the surface layer move with prevailing wind as main drive force, blocking is carried out, the cyanobacteria are guided to the down-wind lakeshore in the direction of the enclosure, and a cyanobacterium enrichment area is formed. A cyanobacterium removal facility is arranged in the cyanobacterium enrichment area, and the cyanobacteria are removed in a large area with high strength. A drainage facilitate with the water flow direction consistent with the prevailing wind direction is arranged, reclaimed water or clean water is drained to enter the control water area to replace contaminated water, and meanwhile water power is enhanced. A water layer mixing facility is arranged in the water area with low water power, the upper water layer and the lower water layer are disturbed, water flow circulation in the transverse direction and the longitudinal direction is generated to the water, the still water environment needed for accumulation of the cyanobacteria is damaged, and the aims of controlling and restraining the cyanobacteria are achieved. According to the method, the cyanobacterial bloom breakout intensity can be effectively controlled, the ecological environment of the nearshore water area is restored, and the water environment quality and the area landscape effect are remarkably improved.

The invention relates to the field of greening, in particular to a plant growth basal disc. The multifunctional organic plant basal disc is a cultivation basal disc with bearing strength and permeable pores which is formed by point combination of fine agricultural waste pieces; according to the volume-to-weight ratio of the cultivation basal disc, the weight is 2.18kg-2.79kg when the volume is W500mm*L330mm*H50mm; and plant seeds are distributed in the basal disc to form a seed layer which is placed at a position 1-2cm on the basal disc. Recycled environmentally-friend artificial soil coming from the nature and returning to the nature is used as the material of the basal disc; agricultural products serving as raw materials also can be regenerated into natural resources and are inexhaustible natural resources. Agricultural wastes and the like in a culture medium are laid on badland or desert to realize lamination so that the badland or desert is greened, weathering of soil and the formation of leaf mold can be promoted, and the early soil improvement of the badland or desert can be realized; therefore, conditions are created for improving environment problems of the earth.

The invention discloses a composite material and a preparation process thereof. The composite material comprises an upper layer perforated film (1) which is contacted with the skin of a user and a lower layer non-woven fabric (2) which is positioned on the lower side of the upper layer perforated film (1), wherein slim holes (4) which are punched in a vacuum absorption mode are uniformly distributed on the surface of the perforated film (1); the upper layer perforated film (1) and the lower layer non-woven fabric (2) are compounded together through fusion laminating points (3); and 50 to 90 percent of slim holes at the fusion laminating points (3) of the perforated film (1) in the composite material are closed due to lamination. The preparation process comprises the following steps of: compounding the perforated film (1) subjected to the vacuum absorption with the non-woven fabric (2) through secondary perforation, namely punching the slim holes (4) in a cast film (6) through a roller type perforation mesh cage (7) by using a vacuum suction nozzle, then mechanically perforating the cast film through compression rollers (15 and 16), and compounding the perforated film (1) with the non-woven fabric (2) through the fusion laminating points so as to obtain the composite material which has a dry, comfortable and flexible surface and can be well diffused in the longitudinal direction.

The invention relates to a molybdenum sulfide-graphene heterojunction photoconductive detector and a preparation method of the heterojunction thereof.The molybdenum sulfide-graphene heterojunction photoconductive detector comprises the heterojunction. The heterojunction comprises a MoS2 layer arranged on a SiO2 / Si substrate layer.A graphene layer is arranged on the MoS2 layer, and a plurality of metal electrodes are arranged on the graphene layer. The two-dimensional material heterojunction negative photoconductive detector with low cost and high responsiveness and the preparation method thereof are provided. With application of the two-dimensional material transfer technology, the impurity problem in the interface layer of the graphene / TMDC heterojunction is reduced and the photoelectriccharacteristics of the graphene / TMDC photoconductive detector are improved.

The invention relates to a laser removing device for enameled wire cladding layer. The laser output from a laser output head is focused on the cladding layer of the enameled wire through a transmission optical path assembly. The enameled wire is coaxially arranged with the laser output head and the rotary driver. The rotary actuator rotates the transmission optical path assembly about its axis, removing the enameled wire cladding. A laser removing device for enamel wire clad layer adopts an automatic operation mode and utilizes laser to act on that enameled wire clad layer, which overcomes thedefect that the manual contact operation mode is easy to damage the enameled wire body and improves the working efficiency of removing the enameled wire clad layer compared with the sandpaper polishing mode; Compared with paint stripper, it can effectively reduce chemical pollution and personal hazards to operators.

The invention belongs to the technical field of hydrogel materials, and particularly relates to degradable self-healing chitosan composite aldehyde guar gum hydrogel as well as a preparation method and application thereof. The method comprises the following steps: 1) obtaining a chitosan (CHI) solution; 2) preparing a solution of aldehyde guar gum (AGG); and 3) carrying out a reaction on the solution of aldehyde guar gum with the solution of chitosan to prepare the degradable self-healing chitosan composite aldehyde guar gum hydrogel. According to the preparation method, an aldehyde group on an AGG chain and an amino group on a CHI chain are subjected to a Schiff base reaction to form an imine bond, and the CHI / AGG hydrogel is obtained by taking the imine bond as a cross-linking point. Dueto a dynamic crosslinking mechanism, the hydrogel can realize self-healing within 5 minutes and can be degraded near a neutral environment.

The invention provides an efficient saline-alkali soil repair agent which is good in effect, short in time and free of pollution. The efficient saline-alkali soil repair agent is characterized by being prepared from calcium oxide, silicon dioxide, aluminium oxide, sulfur trioxide, ferric oxide, magnesium oxide, titanium dioxide, potassium oxide, manganese oxide, sodium oxide and water. Natural mineral substances serve as main raw materials. The efficient saline-alkali soil repair agent is green, environmentally friendly and free of pollution. The PH value of repaired soil can be kept neutral after the efficient saline-alkali soil repair agent is used, plant growth is not influenced, and secondary pollution to the surrounding can be avoided. The soiled repaired through the efficient saline-alkali soil repair agent is good in water-retaining property and fertilizer-retaining property. The efficient saline-alkali soil repair agent can be used for repairing sandy lands and arid lands. Repaired soil can not be dissolved in water before and after being repaired, water and soil loss can be prevented, malodor in soil can be closed, harmful substances can be solidified, and harmful substances can be prevented from flowing out and causing pollution to the surrounding. The efficient saline-alkali soil repair agent is low in cost and high in speed, soil repair can be completed within only one week, the repair effect is stable and durable, and an operation system is small and efficient.

The invention discloses a step-by-step grading sampling method suitable for a carbonatite sample. The step-by-step grading sampling method comprises the steps of: sample collecting, sample coarse crushing, sample fine crushing and sample selecting, wherein the sample coarse crushing is realized as follows: a target mineral is completely separated from surrounding rock by adopting a mechanical crushing method, and meanwhile a crushed sample containing the target mineral is obtained; and the sample fine crushing is realized as follows: the crushed sample containing the target mineral, obtained from the sample coarse crushing, is further crushed by adopting a mechanical crushing method to obtain the target mineral and the crushed sample containing the target mineral, and the acting point of the mechanical crushing is in the carbonatite surrounding rock. According to the step-by-step grading sampling method, the target mineral can be accurately selected without changing the chemical components of the target mineral and causing the pollution of other minerals, the reliability of analysis testing on the aspects of elementary composition, isotope composition and the like is improved, and the foundation is further laid for the research of a carbonatite reservoir.

The invention provides a method for killing tree beetles. The method comprises the steps of: A. conducting oviposition of Scleroderma guani Xiao et Wu in three-instar larvae, parasitizing and breeding into Scleroderma guani Xiao et Wu adults after development of egg stage, larval stage and pupal stage; and B. conducting parasitizing and breeding on the parasitized and bred Scleroderma guani Xiao et Wu adults in tree beetle larvae hosts and killing the tree beetle larvae hosts. With the method provided by the utility model, the Scleroderma guani Xiao et Wu can be bred, and the tree beetle larvae hosts can be killed while breeding the Scleroderma guani Xiao et Wu, so that the tree beetles can be prevented, chemical pollution can be avoided, and the trees are protected.

The invention discloses a multifunctional low-density curing working solution system which is prepared from the following components in parts by mass: 100 parts of waste drilling fluid, 30-70 parts ofa curing agent I, 10 parts of a curing agent II, 1-5 parts of a flexibilizer, 1-6 parts of an activating agent, 0.5-5 parts of a strength enhancer, 0.1-3 parts of an anti-pollution agent, 0.1-3 partsof diluent and 0.1-3 parts of a suspension stabilizer, wherein the curing agent I is blast furnace slag; the curing agent II is pumice powder; the flexibilizer is a mixture of modified basalt fibersand rubber latex; the activating agent is sodium hydroxide or potassium hydroxide; and the strength enhancer is sodium metasilicate nonahydrate, calcium sulfate, sodium carbonate or a mixture thereof.The multifunctional low-density curing working solution system disclosed by the invention has the characteristics of low temperature early strength, low elasticity modulus, high cementing between twointerfaces, excellent plugging effect and the like, is low in cost, environment-friendly and convenient in site construction and has wide market application prospects.

The invention discloses an organic fertilizer fertilizing machine, which comprises receptacle, axis, bearing blocks, frames, driving ground wheels, adjust lever, adjust connecting bar and stirring axis. The frames are equipped with receptacle which is equipped with stirring axis with jaw gears, one end of the stirring axis is equipped with chain wheel which is connected with the driving ground wheels by the chain and drives the wheels, one side of the lower of the receptacle is equipped with leak-proof board and the other side is linked with the receptacle and the fertilizer adjust board by butt, and the fertilizer roller made of steel pipe is equipped on the axis which connects the two driving ground wheels and works matching the tractor. It resolves the prior blank of organic fertilizer fertilizing mechanically of vegetables, structure is simple, operation convenient, fertilization uniform and work efficiency high. It prevents soil compaction effectively, enhances the quality of vegetables and other agricultural products fully, prevents chemical pollution and makes people really enjoy safe, green and health food.

The present invention discloses a method of encapsulating a wafer level microdevice, which includes: fabricating a microdevice on top side of a first silicon wafer; depositing a first capping carbon film on the top side of the first silicon wafer; implementing a backside fabricating process of wafer from bottom side of the first silicon wafer by carrying the top side of the first silicon wafer through the first capping carbon film; removing the first capping carbon film by selective gaseous reaction with carbon; and encapsulating an encapsulation wafer onto the top side of the first silicon wafer. The present invention deposits and removes the first capping carbon film by means of chemical technology, thereby protecting the microdevice on the top side of the first wafer during implementing the backside fabricating process of wafer. The top side does not need to be protected through the encapsulation wafer before implementing the backside fabricating process of wafer, which makes the wafer thinner and convenient to be handled.

The invention discloses a water-soluble fertilizer containing a carbon-enzyme polypeptide and a preparation method of the water-soluble fertilizer. The water-soluble fertilizer comprises the followingraw materials in parts by weight: 25-40 parts of polycarbon enzyme, 70-90 parts of citric acid, 150-200 parts of an organic material extract, 20-30 parts of trace elements, 30-45 parts of an additive, 10-20 parts of polypeptide, 500-700 parts of a waste liquid, 100-150 parts of a chemical fertilizer.

The invention relates to the technical field of air purification, and in particular relates to a method for solving indoor air pollution. The method comprises the following steps of: (1) carrying out steam spraying and sweeping on all surfaces and gaps indoors, and opening doors and windows in the process of spraying and sweeping, wherein 1 m<2> of the area is sprayed and seeped by the steam obtained by vaporization of 22mL of water; (2) spraying plant extracts in to furniture, wall surface and air, wherein the spraying quantity of the plant extracts is 10-15mL / m<2>; and (3) spraying photocatalyst, wherein the grain sizes of titanium dioxide in the photocatalyst are 6-10nm, the solid content is 2-4%, and the spraying quantity is 5-6mL / m<2>, and spraying is carried out at the place which is 30-40cm away from the spraying surface at a uniform speed. The method is environment-friendly, easy to operate, free of secondary pollution of indoor air, good in absorption and decomposition effects, and less in residue, and can furthest and thoroughly solve the indoor chemical pollution for once.

The invention relates to laser cleaning equipment for surface treatment of annular components. The laser cleaning equipment comprises a flexible clamping rotary disc, an outer side cleaning mechanicalarm, an inner side cleaning mechanical arm, an outer surface laser cleaning head and an inner surface laser cleaning head. The flexible clamping rotary disc can conduct flexible clamping on the annular components of different diameters. The outer surface laser cleaning head is carried by the performing terminal of the outer side cleaning mechanical arm. The inner surface laser cleaning head is carried by the performing terminal of the inner side cleaning mechanical arm. The outer side cleaning mechanical arm, the inner side cleaning mechanical arm and the flexible clamping rotary disc are inlinkage. The outer surface laser cleaning head and the inner surface laser cleaning head start lasers, and the inner and outer surfaces of the annular components can be cleaned automatically. A lasercleaning mode is adopted, the inner and outer surfaces of the annular components can be treated efficiently and automatically, manual operation can be avoided, cleaning efficiency and surface treatment quality consistency are promoted, and environmental pollution and human health harm are avoided.

The invention discloses a multiplex RT-PCR kit for BTV-11, BTV-17, BTV-20, BTV-23 and BTV-24 genotype identification and a detection method of the multiplex RT-PCR kit. The multiplex RT-PCR kit is used for simultaneously discriminating and detecting bluetongue virus types 11, 17, 20, 23 and 24 with a single tube. According to the method, 5 pairs of PCR specific primers are designed according to conserved regions of VP2 gene sequences of various types of viruses, in addition, a pair of non-biogenic-derivation universal primers are synthesized with reference to a GeXP principle, the universal primers are separately added to upstream and downstream of each pair of specific primers to form 5 pair of specific embedded primers, reverse transcription is carried out with the specific primers, andfinally, multiplex PCR is constructed by adopting the universal primers and the specific embedded primers. By utilizing an optimized multiplex PCR system and conditions, one or more of the 5 genotypesof the bluetongue viruses can be simultaneously discriminated and detected with the single tube, specific amplification to other types of BTV, PPRV and FMDV nucleic acid is avoided, and the minimum detection concentration can reach a pg level. The method disclosed by the invention is high in sensitivity, high in specificity and easy in result observation and is timesaving and laborsaving.

The invention relates to a high-yield wild-imitating growing method of a remote lemongrass herb, and belongs to the technical field of agricultural planting. The method comprises 8 steps of preparing soil of a tea garden, collecting a wild remote lemongrass herb, furrowing, transplanting, watering, weeding, preventing insects in a pollution-free manner, harvesting and top-dressing, and further comprises the step of manufacturing the planted remote lemongrass herb into tea leaves. According to the invention, the scattered wild remote lemongrass herb is transplanted to the tea garden where the growing environment and the watering and fertilization are not changed, and is planted in close groups, so that the quality of the remote lemongrass herb is guaranteed from the source, and the problems that the number of the wild remote lemongrass herb is small and the remote lemongrass herb can only made into medicines instead of tea are solved. The method adopts the wild-imitating growing mode, and guarantees the original taste and flavor of the remote lemongrass herb as well as zero chemical pollution. Meanwhile, an excellent water supply and drainage system is provided, the weeds and the insects are timely physically controlled and prevented, the yield, the nutrition and the fragrance of the remote lemongrass herb are greatly improved, the remote lemongrass herb is harvested twice in a year, the yield per mu of the fresh herb is 1000kg to 1500kg, and a produced tea bag is higher in quality and better in palatability.

The invention discloses a zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst. The molecular formula of the photocatalyst is Bil-xRxVO4-Fe3O4 / zeolite, wherein R is La or Pr, and x is 0-0.3. Apreparation method of the photocatalyst comprises the steps that a certain amount of R2O3 is weighed for use, concentrated nitric acid is added in R2O3, cooling is conducted, and a R(NO3)3 crystal isobtained; a certain amount of citric acid, Bi(NO3)3 5H2O, NH4VO3 and R(NO3)3 are weighed, the materials are added in distilled water, stirring is conducted, and precursor sol is obtained; zeolite, Fe3O4 and the distilled water are added in the precursor sol, the mixture is stirred to be uniform, heat preservation is conducted, and then the zeolite loaded Bil-xRxVO4-Fe3O4 magnetic nano photocatalyst is obtained. According to the magnetic nano photocatalyst, the catalytic effect is better compared with the catalytic effect of an existing photocatalyst, and the magnetic nano photocatalyst has theadvantages that the cost is low, the universality is high, and the requirements on raw materials are greatly lowered. The raw materials are easy to obtain, the threshold of production implementing islowered, and the magnetic nano photocatalyst is applicable to popularization, application and large-scale industrial production.

The invention provides a stamping reinforcement method of a weak rolling area of a roadbed and an application of the stamping reinforcement method of the weak rolling area of the roadbed. A high speed stamping reinforcement device-stamping rammer compactor is used, and a stamping pounder is lifted in a hydraulic or mechanical manner to punch a tamping plate with a buffer gasket for conducting stamping reinforcement on the weak rolling area of the roadbed which is normally rolled. An application of the stamping reinforcement method of the weak rolling area is further provided for the weak rolling area of the roadbed of a compact road rolled normally. Stamping reinforcement is carried out on junction of new and old roadbeds when the old road is widened, base of the roadbed newly widened, and newly filled roadbeds. Stamping reinforcement is carried out on a roadbed structure base and the weak rolling area of the roadbed of the compact railway rolled normally. Stamping reinforcement is carried out on water damage treatment of roadbeds of roads and railways. Stamping reinforcement is carried out on reinforcing the weak rolling area of river dams and brake back backfill water conservancy projects. The stamping reinforcement method of the weak rolling area of the roadbed provided by the invention has the beneficial effects that the backfill compactness of the weak rolling area of the roadbed is improved, the bearing capacity of the roadbed is improved, post-construction settlement of the weak rolling area is reduced, the project quality is effectively improved, the project expenses are saved, and the economical benefits are remarkable.

The present disclosure relates to dialysis devices. In some embodiments, a dialysis device may include a disposable housing having a storage chamber in fluid communication with a dialysate flow path. Also included may be a controller, an interface capable of operably coupling the controller and the disposable housing, a fluid displacement structure, a pump configured to actuate a deformable diaphragm, and a pressure sensor to trigger the reversal of the pump. The flow path may be fluidly sealed from the controller and the interface.

The invention relates to the technical field of production technologies of foamed cotton, and discloses a production technology of environment-friendly foamed cotton. The production technology of theenvironment-friendly foamed cotton comprises the steps of firstly, mixing and plastifying corresponding components of a material and reinforcing filler, and conducting primary banburying treatment; secondly, adding zinc oxide and stearic acid into a product obtained in the reaction for secondary banburying treatment; then adding a foaming agent, a foaming cross-linking agent, a PU colorant, an odor elimination agent and a stabilizer for tertiary banburying treatment; and finally, carrying out a milling-sheet extruding-cutting-foaming-cooling treatment technology process in sequence to obtain the polyurethane environment-friendly foamed cotton at last. According to the physical and chemical performance of the reactant components, reasonable sectional banburying treatment is conducted, thusthe output rate and quality of the foamed cotton are effectively improved, a mould-pressing physical gas foaming method is adopted, no chemical agents are used, thus chemical pollution is avoided, thetechnology is more environmentally friendly, and by controlling ageing and temperature of the reaction, foamed particles which are even in foam cell, controllable in size and controllable in foamingdensity can be obtained.

The invention discloses biological fertilizer containing carbon enzyme citrate and a preparation method thereof. The biological fertilizer is prepared from the following raw materials in parts by weight: 10-20 parts of poly-carbon enzyme, 10-20 parts of a raw material of biological fertilizer containing enzyme citrate, wherein the raw material of biological fertilizer containing enzyme citrate isprepared from the following components in parts by weight: 25-40 parts of compound enzyme, 70-90 parts of citric acid, 150-200 parts of organic materials, 300-450 parts of inorganic materials, 20-30 parts of trace elements, 30-45 parts of additives, 10-20 parts of cellulose, 500-700 parts of waste liquid and 100-150 parts of chemical fertilizer.

The invention belongs to the field of metal material surface treatment, and particularly relates to a modification method for improving high-temperature oxidation resistance of a titanium-based alloy.The method includes the steps that sand blasting treatment is conducted on the surface of the titanium-based alloy, and then the titanium-based alloy is placed in a fluorine-containing system for anodic oxidation. According to the method, the high-temperature oxidation resistance of the titanium-based alloy can be effectively improved; the whole modification process is simple and efficient, chemical pollution and dust pollution can be effectively avoided, the material utilization rate is high, and the characteristic of green chemical engineering is achieved; the modification cost is low, therequirements for equipment and materials are low, and implementation is easy; the method is suitable for industrial production and popularization; and the thermal shock resistance of the titanium-based alloy can be further improved.

The invention relates to a hygienic residential unit, comprising an entrance door and a home activity space, the home activity space is a standard living room including at least one room, the hygienic residential unit also includes an entrance sanitary space, and the entrance hygienic space is arranged at The entrance door and the home activity space are separated from the home activity space by a wall, and the wall is provided with a clean and dirty separation door to communicate / isolate the entrance sanitary space and the home activity space. In the home activity space, the entrance sanitary space is at least provided with an entrance area, a dressing area adjacent to the entrance area, and a shower area adjacent to the dressing area. The invention can prevent outdoor pollution from being brought to the home activity space to prevent the home activity space from being polluted.

The invention discloses a disposing technology of stainless steel container surface, which comprises the following steps: adopting mechanic polishing to predispose, polishing local mirror, disposing decorative prevention, disposing shot-blast with diameter at 0.2-1.2mm, cleaning surface, coating surface, adsorbing dust, blowing dust, brushing, spraying film liquid, coating film liquid through high-pressure static specific equipment.

The invention discloses an environmental-friendly and waterproof urea-formaldehyde resin adhesive which comprises the following raw materials: high gluten flour, sulfuric acid, a urea-formaldehyde resin adhesive, pigments and a coagulation accelerator. The manufacturing process of the adhesive comprises preparation of a waterproof and environmental-friendly matrix; and adhesive formation. The release amount of free formaldehyde is 0 after the urea-formaldehyde resin adhesive is cured for 48h; the maximum release content is 0.02mg / L after the urea-formaldehyde resin adhesive is cured for 96h; the immersed peel length of each edge of a board is 0mm after the board is immersed for 4-6h in distilled water at 90-100 DEG C; and the adhesive is remarkable in environmental-friendly and waterproof performances.

The invention discloses a composite organic microbial fertilizer and a preparation method for the same. The composite organic microbial fertilizer comprises 5-30 parts by weight of humic acid, 10-30 parts by weight of crop straw carbon or 20-30 parts by weight of rice husk meal, and 10-30 parts by weight of animal waste. The preparation method comprises the following steps of: crushing the crop straw carbon or rice husk meal to be 80-100 meshes, crushing the humic acid to be 80-100 meshes, and drying and sterilizing the animal waste by heating, and mixing the materials in the proportioning ratio aforementioned, and using the mixture as a carrier material for the future use; and taking 3-5 parts by weight of mixed biological agent, uniformly mixing and stirring the mixed biological agent with 800-900 parts by weight of the standby carrier material, adjusting the humidity to be 20-30%, placing in a pit and hermetically fermenting for 48-60 hours at a temperature of 10-50 DEG C, taking out and granulating under a water content of less than 18%. The fertilizer is remarkable in the effects of suppressing soil-borne disease and promoting growth on continuous cropping fields of facility strawberry and the like, and achieves a yield increasing rate of 10-30%; and blossoming and fruit yielding are advanced, and the yield increasing rate achieves 10-30%.

The invention discloses a method for preparing alpha-aluminum trihydride through electrochemical catalytic deposition. The method comprises the following step: (1) refining sodium aluminum hydride; (2) preparing alpha-aluminum trihydride through electrochemical catalytic deposition; and (3) post-treating the product. The method for preparing alpha-aluminum trihydride through electrochemical catalytic deposition is simple to operate, high in efficiency, free from chemical pollution, and small in energy consumption, so that the problems such as high energy consumption and high pollution in etherate and ion exchange method for preparing alpha-AlH3 can be solved. The method is safe, reliable, and high in yield; the electrochemical catalytic deposition reaction is carried out, so that toxic or dangerous oxidants and reducing agents are avoided; the product yield and the available content of the alpha-aluminum trihydride can be realized through electrode potential control; the product yield is up to 64-70%, and the available content of alpha-aluminum trihydride is up to be more than 98%. Therefore, the yield and the selectivity are high.