175results about How to "Effective prevention and control" patented technology

The invention relates to a coal seam pre-splitting method based on gas extraction, which adopts a 'CO2 gas extraction device' as a tool to blast and pre-split a pre-mined coal seam, so as to increase the crack of the coal seam, drive out gas absorbed on the coal seam and extract the gas. The method particularly comprises the following steps: drilling a hole on the working surface of a pre-mined coal seam, filling CO2 gas extraction device into the drilled hole, sealing the drilled hole, detonating the CO2 gas extraction device, releasing high-pressure CO2 gas for deep-hole impact and pre-splitting of the coal seam, taking out the CO2 gas extraction device, and connecting the drilled hole with a gas extraction system to extract gas. The pre-splitting method of the invention can greatly enhance the permeability of the coal seam, promote the gas dissociation in the coal seam, and improve the underground gas extraction efficiency of the coal mine.

The invention provides a formulation composite comprising toxic fluoride phosphate and at least one growth regulator. According to the weight part, the toxic fluoride phosphate accounts for 10%-80% of the formulation composite, the growth regulator accounts for 0.0001%-2% of the formulation composite, the formulation composite also comprises an assistant, an surface active agent, a solvent and a carrier accepted by agriculture, and the formulation composite can be prepared into wettable powder, suspending agent, missible oil, microemulsion, emulsion in water, water dispersible granule, dry suspending agent, seed coating agent and other agents. The formulation composite can be used for preventing and curing tobacco mosaic virus, cucumber mosaic virus, and various virus diseases caused by viruses on rice, such as tobacco mosaic, cucumber mosaic, tomato virus disease, pepper virus disease, rice virus disease and the like and achieves the effects of improving efficacy, treating in a compatible manner, delaying medicine resistance, reducing the using amount of toxic fluoride phosphate and the like.

The invention provides a cultivating method of sugarcanes. The cultivating method comprises the following steps: (1) excavating a draining ditch at space of 10-15 meters along the vertical direction of a planting ditch according to 1.20-1.40 m line space; (2) applying fertilizer: evenly mixing long-effect urea, potassium chloride and mixed organic nature fertilizer and applying to the planting ditch; (3) placing sugarcane straws at the bottom part of the planting ditch, applying vermifuge, and covering smashed soil to form a turtle back shaped soil ridge; (4) spraying pre-emergence herbicide and covering new ground membrane; (5) covering telescopic plastic cover at the ridge slope between lines; (6) respectively arranging a small dam at each end of every section of planting ditch to accumulate water; when soil is not lack of water, opening the dam to discharge water; (7) when the sugarcanes need to earth up in elongation stage, removing the plastic cover out of the sugarcane field, peeling off the ground membrane, and then covering the plastic cover between the sugarcane lines after earthing up; after closing the sugarcanes, recycling and storing the plastic cover. The cultivating method collects rainwater and controls grass, and can irrigate and discharge; the rainfall is reasonable used; the cultivating method is free from water shortage and waterlogging and not delays the farming season; besides, the cultivating method saves labor and increases output.

The invention provides a drainage basin transboundary region water environment risk reduction technology system, which is used for prevention, control and reduction of drainage basin transboundary region water environment risk events. The drainage basin transboundary region water environment risk reduction technology system includes four modules: risk assessment technology, accident pre-warning technology, accident emergency response technology and accident warning condition publishing technology. The main task of the risk assessment technology is identification and assessment of drainage basin transboundary region water environment risks, and the risk assessment technology is mainly applied to daily management of water environment risks. The accident pre-warning technology, accident emergency response technology and accident warning condition publishing technology are risk reduction technologies proposed for a water environment accident, and are mainly used for early warning and emergency disposal of a sudden water environment pollution accident. Through the method, the possibility of occurrence of a pollution event can be predicted scientifically, main control elements of occurrence of different types of events can be made clear, the pollution degree, range of influence and risk level that the event is possible to cause can be assessed, effective and sensitive early warning can be given, and a sudden pollution event response plan can be formulated.

The invention provides a feed additive for preventing a fatty liver of largemouth bass. The feed additive is prepared from the following raw materials in parts by weight: 15-22 parts of astragalus membranaceus, 13-20 parts of salviae miltiorrhizae, 4-8 parts of pericarpium citri reticulatae, 4-8 parts of fingered citron, 4-8 parts of citron, 7-12 parts of hawthorn, 3-6 parts of radix glycyrrhizae preparata, 5-8 parts of flos carthami, 4-6 parts of christina loosestrife herb, 4-6 parts of rheum officinale, 4-6 parts of herba artemisiae scopariae, 2-4 parts of curcuma aromatic, 4-8 parts of vitamin C, 3-5 parts of vitamin E, 3-6 parts of methionine and 1-3 parts of choline. The feed additive provided by the invention is capable of effectively preventing a fatty liver disease of the largemouth bass, so that frequent fatty liver phenomenon in a fish body when an artificial compound feed is used instead of fresh-frozen products in largemouth bass culture is solved; and an effective solving way is provided for healthy sustainable farming of the largemouth bass.

The present invention discloses a field monitoring and safe-protection control method based on the internet of things. The method comprises the steps of: the step 1: monitoring a position of a fire point; and the step 2: allowing an MCU to control a spraying device to enforce fire extinguishing. In the step 1, there are two methods for monitoring the position of the fire point, wherein the two methods comprise detection the position of the fire point by employing a plurality of fire sensors arranged in an array mode and monitoring of the position of the fire point by employing an infrared camera and based on image processing; and in the step 2, there are two methods for fire extinguishing, wherein the two methods comprise (1) controlling of a nozzle of a firing area (subarea) for enforcement of water spray and (2) controlling of a spray gun for rotationally aligning the fire point to enforce water spray fire extinguishing. The field monitoring and safe-protection control method based on the internet of things is abundant in functions, easy to control and high in safety reliability and has a fire prevention and control function.

The invention relates to controlled-release pesticide fertilizer granules which consist of fertilizer components, a controlled-release pesticide composition, a controlled-release agent, an attractant, a dispersion additive and packing, wherein the fertilizer components are prepared by mixing one or more of nitrogen element, phosphorus element, potassium element, zinc element, boron element, manganese element, molybdenum element and copper element; the controlled-release pesticide composition consists of methylamino abamectin benzoate, cyfluthrin, a solvent, a capsule wall material, a protecting adhesive, an emulsifier, a dispersing agent and deionized water. Not only are the granules used as both fertilizers and pesticide, but also the pesticide controlled-release technique is applied to the granules, and the effective prevention and control on soil insects and nematode in different key growth periods of crops are achieved.

Granula containing clothianidin comprises, by weight, 0.01%-10% of one of bifenthrin, cyfluthrin or tefluthrin, 0.01%-15% of clothianidin, 0.1%-40% of humic acid, 1%-15% of auxiliaries, 1%-10% of binder and the balance carriers. The granula containing the clothianidin is used for preventing and controlling soil insects, nematode and pests on the ground of crops such as sugarcanes, peanuts, corns and bananas, and is obvious in synergistic effect, good in prevention and control effect and long in a validity period. The granula can obviously improve a preventing and control effect of the crops on root knot nematode and pathogenic bacteria, simultaneously promotes development of crop root stocks and growth of plants, and improves yield and quality of the crops.

The invention provides an organic red date planting method. The method comprises land management, pruning and trimming, fertilization management, disease and pest control management, and water regulation management. With the method, a date orchard soil-fertilizer-water management technology is innovated. According to the invention, a biological bacterial fertilizer and farmyard manure are added, such that date orchard soil fertility is improved. Rainwater is intercepted, water is stored, soil moisture is maintained, soil is loosened, and fertilizer is maintained, such that red date yield and fruit quality are improved, and fruit crack, disease and pest are reduced. The date orchard pruning technology is innovated, and pruning standards of branch-suppression spring pruning and vigour-rejuvenation summer pruning are established. With the method, traditional habits of emphasizing spring pruning rather than summer pruning, and pruning without trimming are changed. Conflicts among appropriate tree shape cultivation, red date nutrition regulation and fruit setting are solved, and high quality and high yield of the organic red dates are ensured. A disease and pest control technology with physical pest prevention and biological trapping is innovatively established. The measures are scientific; investment is low; no pollution is caused; and the effect is significant. With the method, organic red date high-quality high-efficiency production is realized, and AAA-level green and organic red date standards are reached.

The invention discloses an application of LY-6 (Rhodopseudomonas palustris LY-6) biocontrol agent in control of rice blast. The LY-6 biocontrol agent is obtained through cultivation of LY-6. LY-6 is applied to control of rice blast for the first time, and the LY-6 biocontrol agent has characteristics of being environment-friendly, non-toxic to humans and animals, phytotoxicity-free to crops, simple and convenient to apply and the like.

The invention discloses an internet-of-things-based multi-functional field monitoring and security protection system comprising an MCU, a camera, a communication module, a fire detection device and aspraying device. The camera, the communication module and the fire detection device are connected with the MCU. The camera is used for obtaining a monitoring image or video. The communication module is used for carrying out communication with a remote monitoring terminal, transmitting field information to the remote monitoring terminal or receiving a control instruction from the remote monitoringterminal; the spraying device controlled by the MCU is used for spraying water to put out a fire; and the fire detection device is at least one of a fire sensor, a smoke sensing probe, a flame sensor,and a thermal infrared probe or employs an infrared camera. The internet-of-things-based multi-functional field monitoring and security protection system has advantages of diversified functions, great easiness in control, high safety and reliability, and good fire prevention and control function.

The invention provides a satellite-borne radar wide-area surface two-dimensional deformation field monitoring method and device. The monitoring method comprises the following steps: step 1, acquiringaccumulated deformation quantity of sight lines of a lifting rail towards a time sequence through an InSAR technology; step 2, registering the lifting rail sight line direction observation time through cubic interpolation, and obtaining a lifting rail sight line direction time sequence cumulative deformation quantity after time registration; step 3, according to the registered lifting rail sight line direction time sequence accumulation deformation quantity, obtaining lifting rail sight line direction one-dimensional deformation quantity; step 4, constructing a mathematical model of surface two-dimensional deformation based on a radar imaging geometrical relationship; step 5, resolving the mathematical model according to the one-dimensional deformation quantity of the sight line of the lifting rail to obtain a two-dimensional deformation quantity of the earth surface; and step 6, monitoring through the two-dimensional deformation quantity of the earth surface. According to the invention, high-precision ground surface two-dimensional deformation monitoring can be carried out on lifting rail InSAR data, and a ground surface two-dimensional deformation field can be inversed more accurately, so that geological disaster prevention and control can be carried out more accurately.

The invention discloses Ligularia virgaurea extract insecticide and a preparation method thereof. The Ligularia virgaurea extract insecticide is prepared from a main chemical and assistants, wherein the main chemical is a Ligularia virgaurea extract compound, and the volume content of terpenes and alkaloids compounds is 86.3%; the Ligularia virgaurea extract insecticide is in dosage forms of suspoemulsion and microcapsule; the suspoemulsion is prepared from the following ingredients in weight percentage: 50-75% of main chemical, 3.0-10% of emulsifier, 0.1-5.0% of dispersing agent, 0.2-5.0% of thickening agent, 2.0-8.0% of anti-freezing agent, 0.1-5.0% of preservative, 0.2-5.0% of defoaming agent and the balance of water. The microcapsule is prepared from the following ingredients in weight percentage: 80-86% of main drug, 13.0-19.9% of capsule wall material, 0.1-1.0% of lubricating agent, curing agent which is 10 times of the total amount of the prepared ingredients in volume dose, and diluent which is 10.0-15.0 times of the total amount in volume dose, wherein the pH value of the capsule formation system is regulated to be 4.0-4.5 by a capsule formation agent. The biological insecticide has good prevention and control effect on various crop pests, and is safe to people and livestock, environment and natural enemy.

The invention discloses a water conservancy flood control, drought resistance and waterlogging prevention comprehensive disaster reduction platform system based on a CIM platform. The system includes a flood control and disaster reduction system, a drought early warning and emergency system and an urban inland inundation early warning system. Based on engineering operation information such as geographic information (GIS) capacity, spatial information model (BIM) capacity, Internet of Things information (IoT) capacity and data storage (DB) capacity provided by a CIM platform, water regimen and drought monitoring analysis is carried out through real-time sensing information, and joint scheduling with a wading project and facility management system is achieved. Through the comprehensive management platform system, the implementation of the strictest water resource management system can be ensured by a quantitative means. Flood forecasting and early warning based on water conservancy professional mathematical models such as real-time water and rain condition monitoring, soil moisture content prediction, a gridding hydrological numerical forecasting model, a river network hydrodynamic forecasting model and an urban ponding and waterlogging model are established, forecasting and early warning information is published to professionals and the public, and disaster situation evaluation is carried out.

The invention discloses a method for precise prevention and control of rock burst in a remote area under a coal mine. The method comprises the following steps: analyzing and evaluating impact risks ofmining engineering and each adjacent area according to geological and mining conditions; determining impact vibration sources, stress wave spreading paths and rock burst risky areas; formulating keytechnological parameters of directional drilling and segmented controllable fracturing; conducting directional long drilling and branch drilling at the impact vibration sources or in areas of the impact stress wave spreading paths with a directional drilling machine; adopting retreating-type, step-by-step and segmented controllable fracturing; and conducting quantitative evaluation of accurate prevention and control effects in the remote area through monitoring and inverse analysis of effective influential areas of directional drilling and segmented fracturing. The method has the beneficial effects that bending energy, fracture energy, impact energy and structural activation energy of a high-altitude roof can be effectively reduced, or the impact stress wave spreading paths can be cut off,or stress wave spreading strength can be reduced; finally, accurate and efficient prevention and control of rock burst in a remote area can be realized; and the method is especially applicable to prevention and control of large rock burst of a roof-fracture type and a structural-activation type.

The embodiment of the invention discloses an abnormal account prevention and control method based on a graph structure model, a device and equipment. According to the scheme, the method comprises steps of building an appropriate account relation network in advance according to relevant data of account registration and / or authentication; carrying out feature integration and defining a graph structure model, training the graph structure model by utilizing the labeled sample, then calculating embedding vectors of multiple iterations of nodes in the hidden feature space and the prediction probability of the embedding vectors by utilizing the trained graph structure model, and carrying out abnormal account prevention and control on the nodes according to the embedding vectors.

The invention provides a duck flavivirus and an inactivated vaccine thereof and belongs to the field of veterinarian lemology. The duck flavivirus is a WR strain of duck flavivirus. The WR strain is inoculated with a Muscovy duck embryo, inactivated by formaldehyde and then added with a white oil adjuvant for emulsification to prepare the inactivated vaccine. The invention proposes to prepare inactivated vaccine against duck flavivirus by use of the WR strain of duck flavivirus for the first time; and through the research and preparation of the vaccine, the defect that the disease cannot be effectively prevented at present in China is solved, and the loss caused by the sharp reduction of eggs laid by each duck due to the current high duck flavivirus morbidity can be effectively avoided. By using the WR strain of duck flavivirus to prepare the inactivated vaccine, the process is simple, and the operation is convenient; and the prepared vaccine has the advantages of good antigenicity and high safety, does not bring any bad influence on external environment, and passes the safety evaluation easily.

The invention provides a high-yield maize culture method which comprises the following steps: drying seeds in the sun; soaking the seeds; dressing the seeds; sowing the seeds; preparing and applying an organic fertilizer. The method provided by the invention is scientific in maize seed treatment, correct in fertilizer selection and reasonable in fertilization, and maize cultured according to the method has a high rate of emergence, is tidy, and has high yield and quality.

Veterinary composition comprising an extract of seaweed containing at least 5% fucoidians and an Andrographis sp plant extract containing at least 5% of andrographolide, which is useful in the control and prevention of infections produced by intracellular microorganisms in fishes.

The invention discloses a triple fluorescence quantitative reverse transcription-polymerase chain reaction (RT-PCR) detection kit for an H7N9 avian influenza virus, as well as a primer pair or a primer pair group for identifying an H7 subtype avian influenza virus and an N9 avian influenza virus and generally detecting all the avian influenza viruses, and a kit thereof. Three pairs of specific primers which specially aim at the conserved sequences of an H7 subtype avian influenza virus HA gene, an N9 subtype avian influenza virus NA gene and all the avian influenza virus M genes are designed by the inventor and are combined to be the triple fluorescence quantitative RT-PCR detection kit for the H7N9 avian influenza virus, and the triple fluorescence quantitative RT-PCR detection kit can be used for determining whether H7N9 avian influenza virus infection exists or not through one-pipe detection. The primer pairs, the primer pair groups or the detection kit can be used for detecting whether samples to be detected are infected by the H7N9 subtype avian influenza virus, the H7 subtype avian influenza virus, the N9 subtype avian influenza virus and other subtype avian influenza viruses, have important significance in effectively preventing and controlling avian influenza and cutting off the transmission route of the avian influenza, and has wide application prospect.

The invention discloses a method for locomotive anticollision using on-board optical detection mechanism combining with auxiliary image pickup. The method comprises the following steps: extracting image information of calibration zones of a steel rail track and an entrance through the on-board optical detection mechanism and an auxiliary image pickup mechanism; analyzing and determining extracted image information; and controlling operation of a locomotive. The invention also discloses a device for locomotive anticollision using on-board optical detection mechanism combining with auxiliary image pickup. A detection base station formed by far infrared or CCD and image identification, data processing, fault early warning, and consist information sending technologies, and full coverage detection of rail tracks without blind areas is realized. The ground detection base station is static, and aims at the detected zone of steel rail track to determine whether an external object invades. The device sends fault instructions and monitoring images to the locomotive through a wireless bridge technology, so as to realize locomotive anticollision. The device can still detect required safety distances at night and in rainy, snowy, and foggy weather conditions, and provides important guarantee for traffic safety.

The invention discloses an insecticide sterilization compound agent containing hymexazol. The insecticide sterilization compound agent comprises the following components in percentage by weight: 0.01-10 percent of hymexazol, 0.05-50 percent of an insecticide component, 1-40 percent of humic acid, 1-25 percent of assistants, and the balance of a carrier, wherein the insecticide component is any one of dinotefuran, clothianidin or thiamethoxam. The insecticide sterilization compound agent is remarkable in synergistic effect, is capable of simultaneously controlling pests and diseases, and is remarkable in control effect, so that the applying frequency and the applying dosage of the compound agent are effectively reduced, and the pesticide applying cost is lowered; and the disease and pest resisting capability of crops can be remarkably improved by the compound agent, so that the rhizome development and plant growth of the crops are promoted, and the yield and quality of the crops are improved.

The invention discloses a method for locomotive anticollision using on-board optical detection combining with wireless bridge communication. The method comprises the following steps: a ground detection mechanism obtaining image information along the railway; transmitting the information to a train on-board device in the region through wireless bridge; and the train on-board device receiving processed image information and generating a control command and controlling a locomotive. The invention also discloses a device for locomotive anticollision using on-board optical detection combining with wireless bridge communication. Communication among acquisition devices and an on-board control device along the railway is realized through the wireless bridge. The device and the method determine whether steel rails are covered by barriers, so as to realize locomotive anticollision. The device and the method can still detect required distances ensuring safety at night and in rainy, snowy, and foggy weather conditions. The device can operate in all weathers, and provides important guarantee for traffic safety.

The invention relates to the field of agriculture, in particular to a production method of agricultural microbial paecilomyces lilacinus for nematode prevention and control. The production method of the agricultural microbial paecilomyces lilacinus for nematode prevention and control is used for producing the agricultural microbial paecilomyces lilacinus for nematode prevention and control by utilizing mushroom bran. The mushroom bran is applied to production and serves as a main culture material; the cost of the prepared culture medium materials is 805 yuan / ton; the cost of each ton of materials can be saved by more than 1,545 yuan. Waste can be changed into treasures and environmental pollution is reduced.

The invention belongs to the technical field of biologics, and in particular discloses a persimmon tree colletotrichum gloeosporioide SSR (Simple Sequence Repeat) primer pair developed based on sibling species genome and application of the primer pair. According to the persimmon tree colletotrichum gloeosporioide SSR primer pair, 30 pairs of SSR primers are developed by finding SSR by using MISA software on the basis of the genome of a sibling species, namely, colletotrichum gloeosporioides, of persimmon tree colletotrichum gloeosporioides, and 15 pairs of polymorphism SSR primers are obtained by screening 6 different persimmon tree colletotrichum gloeosporioides; the persimmon tree colletotrichum gloeosporioide SSR primer pairs provided by the invention are novel markers which exist stably, can be used for analyzing genetic diversity and genetic differentiation on the persimmon tree colletotrichum gloeosporioides, can be also used for identifying varieties of the persimmon tree colletotrichum gloeosporioides and studying ties of consanguinity, and have very important significances in effective prevention and control on the persimmon tree colletotrichum gloeosporioides.

The invention relates to an htpsA-gene-knock-out mutant strain of Streptococcus suis serotype 2 and application thereof, belonging to the field of genetic engineering. The mutant strain is 05ZYH33 delta htpsA with an accession number of CGMCC No. 7375. A preparation method for the mutant strain comprises the following steps: carrying out gene knockout on an htpsA gene by using a homologous recombination gene knockout technology, wherein the htpsA gene is located on chromosome 05ZYH33 of a wild S. suis 2 strain and codes histidine triad protein Htp; and determining that an obtained strain is a gene-knocked-out mutant strain through combined PCR product electrophoresis, RT-PCR and DNA sequencing identification and naming the obtained gene as 05ZYH33 delta htpsA. Pathogenicity of the mutant strain provided by the invention is researched through animal experiments, and results show that virulence of the mutant strain to a tested animal is substantially reduced; so the mutant strain can be used for developing an attenuated vaccine of Streptococcus suis serotype 2.

The invention discloses a citrus psylla trapping and killing device and method. The citrus psylla trapping and killing device comprises a pest killing electric net and a container containing a pest trapping plant. The pest killing electric net comprises a top cover, an electric net body and an interface board, wherein the electric net body is annular, the upper end of the electric net body is fixedly connected to the top cover, the lower end of the electric net body is fixedly connected to the interface board, the bottom wall of the interface board is provided with an interface, and the interface is movably connected with an opening of the container containing the pest trapping plant. Due to the fact that murraya paniculata, particularly, tender shoots of murraya paniculata can strongly attract citrus psylla, the attraction effect of murraya paniculata is directly utilized for trapping citrus psylla, citrus psylla adults can fly to murraya paniculata and die of an electric shock after touching the electric net, and thus citrus psylla can be effectively prevented and controlled. The citrus psylla trapping and killing device and method can also be applied to prevention and treatment, field investigation, prediction and field trapping and killing of field citrus psylla.

The invention provides a method for cultivating radix notoginseng without pesticide residues so as to solve the defects in the prior art. The method comprises the following steps: S1, selecting a land; S2, building a cultivation greenhouse; S3, transplanting seeds and seedlings; and S4, performing seed and seedling management, wherein the cultivation greenhouse in the step S2 is a planting greenhouse with a shading net and a rain-sheltering film; the seed and seedling management in the step S4 comprises plant disease and insect pest prevention and control, and fertilization management; the plant disease and insect pest prevention and control comprises: preventing and controlling the epidemic diseases of the radix notoginseng by a method for paving the rain-sheltering film to isolate the radix notoginseng in the planting greenhouse from contacting rainwater, and preventing and controlling the insect pests by sunning the land for at least one month before building the cultivation greenhouse and by cooperatively using an insect-attracting board and / or poison bait; the fertilization management comprises fertilizer preparation and fertilization; and the fertilizer preparation comprises preparation by using homemade fertilizer and / or preparation by using commercial fertilizer. By the cultivation method provided by the invention, high-quality radix notoginseng products with zero pesticide residue quantity can be obtained, the plant disease morbidity of the radix notoginseng is reduced to be below 10%, and the insect pest morbidity is reduced to be 20% to 30%.

The invention relates to a risk area prediction method and device, electronic equipment and a computer readable medium. The method comprises the following steps: acquiring medical data of a pluralityof patients; determining a risk patient in the plurality of patients according to the medical data; determining track information of the risk patient; according to the track information and the medical data of the risk patient, determining a total risk value of a target area in each preset period within a preset duration; determining a risk index of the target area in the preset duration accordingto the total risk value of the target area in each preset period in the preset duration; and if the risk index of the target area in the preset duration is greater than a preset risk threshold corresponding to the preset duration, determining the target area as a risk area. According to the risk area prediction method and device, the electronic equipment and the computer readable medium, the potential high-risk area can be predicted before infectious disease outbreak, so that prevention and control are carried out in time at the early stage of epidemic situations, and large-area propagation of the epidemic situations is avoided.

The invention discloses a strain of endophytic Streptomyces lydicus DOR3-2 of Chinese yam and application of the same in biological control of anthracnose of Chinese yam. The strain of endophytic Streptomyces lydicus DOR3-2 of Chinese yam provided by the invention is preserved in China Center for Type Culture Collection with an accession number of CCTCC NO: M2012237 and is prepared by carrying out isolation and culture on roots of Chinese yam. The Streptomyces lydicus DOR3-2 provided by the invention has a broad spectrum of activity against filamentous fungi and a good control effect on Dioscorea lianas in Dioscoreaceae, particularly on anthracnose of Chinese yam, and provides technical supports for mass production of Chinese yam and an effective control approach for biological control of Chinese yam.