54results about How to "Reduce disease spread" patented technology

The invention provides a degradable mulching film. The mulching film is prepared from the following raw materials in percentage by mass: 10-40 percent of composite bio-based modified plant extract, 20-60 percent of starch, 10-30 percent of polyvinyl alcohol, 1-5 percent of polyester, 5-25 percent of plasticizer, less than or equal to 0.4 percent of a reinforcing agent, less than or equal to 0.5 percent of a wet strength agent and less than or equal to 0.1 percent of a defoaming agent. A preparation method of the degradable mulching film comprises the following steps: preparing a composite bio-based modified plant extract; uniformly mixing the raw materials and granulating; and performing blow molding to form the film. According to the mulching film, pollution on soil caused by application of the mulching film can be effectively relieved, crop growth can be facilitated, a positive effect is played on agricultural production, the bio-degradation rate of a residual film which is used for four months can be over 85 percent, injurious insects can be repelled, breeding of injurious insects can be inhibited, and hazards and mycosis transmission can be reduced. The degradable mulching film has the characteristics of low cost, low energy consumption and comprehensive functions; the preparation process is simple and low in cost, and can realize effective utilization of raw material resources.

A feed for Japanese sea perch is proportionally prepared from fish powder, soybean dregs, black snakehead fish powder, corn protein powder, cotton seed dregs, flour No.4, fish fat, soybean oil, soybean phosphatide, calcium dihydrogen phosphate and additive containing vitamins, minerals, etc. It has high nutritive value.

This invention relates a wastewater purifying system in hospitals, comprising interconnected grilles, a regulating disinfection pool, a coagulation pool, a preliminary settling tank, a hydrolysis-acidification pool, an aerobic bio-filter, a secondary settling tank, an advanced oxidation device, a sludge pool and a recycling impounding reservoir. The regulating disinfection pool is used to accumulate original wastewater released from every source and the advanced oxidation device is used to oxidize remained organic matters into inorganic molecules via chemical and biochemical methods or via physical methods and could be an electric biological oxidation treatment device. This system possesses high purifying degree and purified water from this system can be used as reclaimed water.

A feed for black porgy is proportionally prepared from fish powder, soybean dregs, black snakehead fish powder, rapeseed dregs, cotton seed dregs, flour No.4, fish fat, soybean oil, soybean phosphatide, calcium dihydrogen phosphate and additive containing vitamins, minerals, etc. It has high nutritive value.

A device for sterilizing a surface having a light source positioned to direct a source of sterilizing light at said surface. The light directing sufficient sterilizing light at said surface to reduce the presence of infectious agents present on the surface to reduce the transmission of disease from contact with the surface.

The invention relates to a golden pompano feed applicable to deep-sea cage culture. The golden pompano feed comprises the following components in percentage by weight: 35 to 42 percent of imported fish meal, 15 to 23 percent of bean pulp: corn protein powder (2:1), 2.5 to 5 percent of yeast, 1.5 to 5 percent of squid organ meal, 7.5 to 10 percent of peanut meal, 18 to 23 percent of strong flour, 2.0 to 3.5 percent of fish oil, 0.5 to 1.0 percent of granulesten, 1.0 to 3.0 percent of monocalcium phosphate and 35 percent of additive comprising composite vitamin, composite mineral substance, immunopolysaccharides, choline chloride and vitamin C-phosphate. The golden pompano feed can meet all the nutritional requirements of the golden pompano through deep-sea cage culture, so that the cultured objects grow quickly. The golden pompano feed has high feed conversion efficiency and low production cost, can effectively protect offshore resources, obviously reduces disease propagation and pollution to water quality of culture sea area, and has stable sources of raw materials, low cost and a simple production process.

This invention discloses an ecological polyculturing method of sea cucumber, Penaeus monodon and Portunus trituberculatus, which comprises the following steps: choosing the Portunus trituberculatus and Penaeus monodon with quick growth speed and high economic value based on the biological characteristics that the sea cucumber and decapod crustacean have different growth time and nutrition levels;and making full use of the idle water and abundant natural baits in the pond during the aestivation of the sea cucumbers to polyculture sea cucumbers, shrimps and crabs. The culturing method is characterized by optimizing the ecological environment of the pond, reducing pollution discharge and disease spread, using the water space effectively, reducing culturing and producing cost, increasing culturing output, etc.

The invention relates to feed for Acanthopagrus schlegelii juvenile fish. The feed comprises raw materials in percentage by weight as follows: 20%-30% of soybean meal, 35%-50% of soybean protein concentrate, 10%-15% of fish meal, 1%-3% of corn oil, 1%-3% of peanut oil, 0.5%-1% of vitamins, 0.5%-1% of composite mineral substances, 0.1%-0.5% of compound amino acid, 0.4%-1% of a compound enzyme preparation, 0.1%-0.5% of polysaccharides, 1%-5% of marine oligosaccharides, 5%-7% of white ants and 3%-5% of a Chinese herb medicine additive. The feed has good palatability, facilitates feeding of the Acanthopagrus schlegelii juvenile fish, increases the survival rate and the feed utilization rate, reduces disease spread and pollution to the water quality of an aquaculture water area and is safe and reliable to use and environment-friendly.

The invention discloses a planting method of corns and vegetables intercropping. The method comprises the following steps: the first step, mature corn seeds in 90 to 140 days are selected and sowed 15 days before sowing time in a north-south direction with a wide row and then a narrow row arrangement, the spacing of the wide rows is 70 to 90cm and the spacing of the narrow rows is 40 to 45cm, the spacing between corn plants of a same row is 25 to 30cm; the second step, mulching film is used for covering in cold regions after the corn seeds are sowed; the third step, the plastic mulching film is removed after the corn seeds emerge, farmyard manure is used for scattered at the root parts of the corns, then the corns are earthed up, banked and watered; the fourth step, vegetable seedlings are cultivated among the corn seedlings after the corns emerge for 25 to 60 days, then the vegetable seedlings are transplanted to a corn field after growing for 25 to 55 days, and each vegetable seedling is planted among each two corn seedlings; the fifth step, the tops of 4 adjacent corns are bound together by intercropped climbing type vegetables and corn leaves are removed from the corncob to roots. The planting method of the invention not only improves land utilization rate and the economic benefit of per mu (mu: a Chinese unit of area, 1 / 15 of a hectare) yield without putting up any sprout rack but also reduces the disease and insect pests.

A modified arthropod, an arthropod-modifying bacterium, and use thereof as an agent for control of diseases transmitted by arthropods, particularly mosquitoes, is provided. More specifically, an isolated arthropod-adapted Wolbachia bacterium capable of modifying one or more biological properties of a mosquito host is provided. The modified arthropod may be characterized as having a shortened life-span, a reduced ability to transmit disease, a reduced susceptibility to a pathogen, a reduced fecundity, and / or a reduced ability to feed from a host, when compared to a corresponding wild-type arthropod.

The invention discloses a preparation method of a yolk antibody sustained-release preparation for preventing gosling plague, and belongs to the technical field of biological products. A healthy egg layer is immunized with a gosling plague live vaccine and a gosling plague inactivated vaccine successively; the laid egg is collected, and the yolk is separated; the yolk is well mixed with a sodium chloride solution, and a proper amount of porous starch is added for full adsorption; the above solution is well mixed with a sodium alginate solution; the mixed solution is dehydrated by a spray drying device; and a yolk antibody sustained-release preparation for preventing gosling plague is obtained. The method of the invention is scientific, has simple process, low cost, and minimal loss; the preparation has the characteristics of obvious efficacy, convenient preservation, good sustained-release performance, easy absorption, no toxicity, no residues, and the like. Compared with traditional yolk antibody injections, the yolk antibody sustained-release preparation for preventing gosling plague not only has a prolonged protective period, but also can be administered through an oral route without any stress response, and the preparation also has a certain growth-promoting effect.

The invention relates to an organic fertilizer special for cultivating tuber vegetable organic farm products and a preparation method thereof. The organic fertilizer is prepared by mixing and fermenting crop seedling tendrils serving as a main material and scarp, cakes and microorganisms. The special organic fertilizer is prepared by mixing and fermenting according to the requirement of tuber vegetable crops on nutrients and various organic matters, and has reasonable nutrient proportion and strong pertinence. The wasted tendril plants are used for producing the organic fertilizer, so a new source of raw materials is increased.

The invention relates to reprocessing of livestock and poultry dying of diseases, and concretely relates to a feed raw material (meat and bone meal), and a preparation method and an application thereof. The meat and bone meal is obtained through the steps of biodegradation bacterium treatment on livestock and poultry dyeing of diseases, and reprocessing. The method is adopted to carry out harmless treatment, so the livestock and poultry dying of diseases can be timely collected and processed in a standardized manner, so the food safety and public health safety risk is reduced; the propagation and spreading probability of animal epidemic diseases is effectively reduced, the health level of animals is improved, and the healthy and stable development of the animal husbandry is guaranteed; environment pollution can be reduced, and the rural settlement environment is improved; and additionally, the livestock and poultry dying of diseases contains abundant proteins and oils, so resource recycling and changing of wastes into valuables can be realized.

The invention discloses a method for preparing a liquid fertilizer from banana stems. The method comprises the following operation steps: (1) stem chopping: chopping fresh banana stems into small blocks; (2) squeezing and dewatering: squeezing to separate juice from stems; (3) collecting stem juice, namely completely collecting juice squeezed from banana stems; (4) primary fermentation: performingnatural fermentation; (5) filtering: filtering the naturally fermented banana stem juice to remove precipitate; (6) evaporation and concentration: carrying out evaporation and concentration on the banana stem juice; (7) secondary fermentation: adding urea and EM bacterial liquid, and fermenting; and (8) adjusting the nutrient content, and fully and uniformly stirring to obtain the fertilizer. According to the method, fertilizer utilization of banana stem juice is achieved, the utilization amount of banana stems can be greatly increased, and the utilization rate of banana industry waste resources is increased; harmless and resource utilization of banana stem juice is realized, and plant disease propagation and environmental pollution are reduced.

The invention relates to a cesium-137 mutagenesis breeding method for macadimia nuts. Macadimia nut seeds are subjected to sterilization treatment firstly, so that disease bacteria on the upper surfaces of the macadimia nut seeds can be killed, disease propagation is reduced, and field diseases are prevented. The seeds obtained after sterilization treatment are put into pretreatment liquid to be soaked, so that the effect of strengthening the chemical mutagenesis effect can be achieved, and chemical mutagenesis of the macadimia nut seeds is promoted. A chemical mutagenic agent is a mixture of ethyl methanesulfonate and diethyl sulfate, so that the mutation speed of the macadimia nut seeds can be increased, the mutation rate can be increased, and seeds with special characters can be obtained. A chemical mutagenesis treatment process is also limited and is divided into two times of mutagenesis treatment, so that the mutagenesis effect is better. Chemical mutagenesis treatment and 137Cs-gamma ray irradiation treatment are combined, so that the mutation speed of the macadimia nut seeds is further increased, the mutation rate is increased, and the seeds with special characters can be obtained. The seeds obtained after irradiation treatment are subjected to oscillation treatment, so that the mutation speed of the macadimia nut seeds can be further increased, and the mutation rate is increased.

The invention relates to a pipeless fresh-air washing air purification system which is composed of a silent fresh-air washing air purifier and expiratory valves mounted on the outer walls of rooms. Outdoor air is subjected to washing purification and pressurizing and then fed into the rooms, meanwhile, indoor air of the equal volume is pushed out of the rooms through the expiratory valves and doorand window cracks. The silent fresh-air washing air purifier comprises a control panel, an electric cabinet, a sensor group, a low-efficiency filter, a bag medium-efficiency filter, a high-efficiencyfilter, an ultra-silence fan, a water tank, a washing water pump, a washer and the like. Through pressurizing of the fan, the indoor air forms micro positive pressure, the indoor air flows unidirectionally, accordingly, unpurified outdoor air is prevented from entering the rooms through the expiratory valves or the door and window cracks, the indoor air can be continuously kept up to the superiorquality standard, distribution of fresh air of the multiple rooms is controlled by the expiratory valves of the rooms, and fresh air distribution is achieved without needing an indoor pipe. The fresh-air washing air purification system is suitable for being used in habitable rooms and small public places.

A self-sterilizing, face mask, respirator, open or enclosed face shield employs germicidal, far UV-C light safe for direct human exposure, mitigating risk of acquisition or transmission of respiratory pathogens, such as COVID 19. Device attachments or special lenses direct far UV-C light into the respiratory chamber and / or reservoir areas of infection including nasal, oropharyngeal or ocular areas to reduce or eliminate pathogens, serving also as a treatment modality. In a preferred embodiment the face shield has a removable front section, which can be exchanged or replaced with sections that include various functional attributes while maintaining germicidal protections and avoiding need to remove PPE during these activities including consumption of liquids, oral medications or food, as well as providing antimicrobial absorbent sneeze or cough guard or rhinorrhea secretion absorption, or a communication device to address communication deficiencies caused by respiratory protection barriers.

Methods, systems, and products improve healthcare of patients. An electronic patient chart is retrieved and displayed at a patient room computer system. The electronic patient chart is also displayed at a remotely-located primary computer system, such as a nurse's station or other monitoring party. The patient room computer system is linked to the remotely-located primary computer system such that updates to the electronic patient chart received at the patient room computer system are also updated at the primary computer system to permit monitoring.

The present invention relates to a paddy field mineral trace element soil conditioner formula and a use method. The paddy field mineral trace element soil conditioner comprises the following raw materials: a trace-element-rich mineral fertilizer, a soil conditioning agent, lime and a leaf surface blocking agent, wherein the trace-element-rich mineral fertilizer comprises more than 50 medium traceelements and rare earth elements, the content of oxides silicon, calcium, manganese, iron, magnesium, sodium, aluminum and titanium is 50% or more, and the content of beneficial rare earth elements and trace elements lanthanum, strontium, zinc, selenium, boron, barium, gallium and nickel is larger than or equal to 2500 [mu]g / g. The soil conditioner is rich in medium trace elements silicon, calcium, magnesium, molybdenum, iron, copper, zinc and the like, the pH value is 10.0-12.0, and the soil conditioner comprises the following main components in percentage by weight: more than or equal to 20.0 percent of effective calcium (CaO), more than or equal to 12.0 percent of effective magnesium (MgO) and more than or equal to 12.0 percent of effective silicon (SiO2). According to the formula and the using method of the mineral trace element soil conditioner for the paddy field, mineral fertilizer is applied, and the mineral fertilizer is rich in various trace elements and is a main component of coenzymes in plants, so that cell tissues of injured parts are effectively repaired, and the injured parts are promoted to recover physiological functions as soon as possible to grow healthily.

The invention relates to a shipborne method for preparing an organic fertilizer and coproducing an antibacterial building material by using sludge. The method comprises the following steps: exploring,designing and sucking sludge, carrying out primary solid-liquid separation to lower the water content to 80% or below, stirring, carrying out air floatation to separate heavy metals, organic mattersand mud sand, sucking the organic matters from the upper layer of a separation tank, and carrying out fermentation compounding to obtain the organic fertilizer. The silt sediment is dehydrated for thesecond time to enable the water content to reach 20%-50%, the special cementing material is added according to 5%-30% of the silt dry basis, and the building block, the water permeable brick and thebuilding antibacterial building material with the antibacterial function can be obtained through stirring and forming. According to the technical method, land acquisition is not needed, secondary pollution is avoided, the method is environmentally friendly, the developed antibacterial veneer board is particularly suitable for public places of high-risk groups and sterile wards, food factories, pharmaceutical factories and high-end residences of the public places in a wide range, and good news is brought to health of people.

The invention discloses a greenhouse muskmelon planting method which comprises the following step of 1, seed pretreatment, specifically, airing muskmelon seeds in the sun for 2-4 h, turning over onceevery 1 h, soaking the seeds with warm water at 55 DEG C to 60 DEG C, pouring the seeds into water, continuously stirring with a glass rod, continuously adding hot water, keeping the temperature at 55DEG C and 60 DEG C for 20-30 min, continuously stirring until the water temperature is reduced to 28 DEG C and 30 DEG C, keeping the temperature for soaking for 4-6h, washing the soaked muskmelon seeds with clear water, wrapping the muskmelon seeds with clean wet gauze, sleeving the wet gauze with a layer of plastic bag, then carrying out water bath at 25-28 DEG C, and finishing pretreatment whentwo thirds of the muskmelon seeds are whitened. Muskmelons planted through the method are high in germination rate, few in disease and large in yield, meanwhile, an adopted watering device is simpleand convenient to use, the watering direction and speed can be adjusted, muskmelon seedlings can fully receive water, and growth conditions are optimized.

This invention discloses an ecological polyculturing method of sea cucumber, Penaeus monodon and Portunus trituberculatus, which comprises the following steps: choosing the Portunus trituberculatus and Penaeus monodon with quick growth speed and high economic value based on the biological characteristics that the sea cucumber and decapod crustacean have different growth time and nutrition levels;and making full use of the idle water and abundant natural baits in the pond during the aestivation of the sea cucumbers to polyculture sea cucumbers, shrimps and crabs. The culturing method is characterized by optimizing the ecological environment of the pond, reducing pollution discharge and disease spread, using the water space effectively, reducing culturing and producing cost, increasing culturing output, etc.

The invention discloses a prawn industrial culture system combining circulating water and biofloc, and relates to the technical field of prawn culture. The system comprises a culture subsystem, a water treatment subsystem, and an intelligent control subsystem; the culture subsystem comprises a culture pond, an inflating device, a heating device, a dirt collecting area and a water inlet and outletpipeline; the water treatment subsystem comprises a solid-liquid separation device, a biological filter, a protein separator, a disinfection tank, a reservoir, a water pump and a pipeline; and the intelligent control subsystem comprises a water quality monitoring and automatic control unit, a base central control unit, a central management unit, a big data platform and a mobile terminal. The biofloc breeding, water treatment and monitoring parts involved in the system are integrated to form a set of facility-based ecological culture system with self-purification capability for prawns, the water space can be effectively utilized, the facility utilization degree is improved, the breeding controllability is improved, pollutant discharge and disease propagation are reduced, and good ecologicalbenefits are obtained; and the influence on factors such as regions and seasons can be avoided, multi-season annual output is achieved, the yield per unit area is high, and the quality is good.

The invention relates to reprocessing of livestock and poultry dying of diseases, and concretely relates to a feed raw material (meat and bone meal), and a preparation method and an application thereof. The meat and bone meal is obtained through the steps of biodegradation bacterium treatment on livestock and poultry dyeing of diseases, and reprocessing. The method is adopted to carry out harmless treatment, so the livestock and poultry dying of diseases can be timely collected and processed in a standardized manner, so the food safety and public health safety risk is reduced; the propagation and spreading probability of animal epidemic diseases is effectively reduced, the health level of animals is improved, and the healthy and stable development of the animal husbandry is guaranteed; environment pollution can be reduced, and the rural settlement environment is improved; and additionally, the livestock and poultry dying of diseases contains abundant proteins and oils, so resource recycling and changing of wastes into valuables can be realized.

The invention provides an epidemic prevention garbage can. The epidemic prevention garbage can at least comprises a housing, an inner barrel and a spraying assembly, wherein the housing comprises an upper cover body and an outer barrel body, an opening is formed in the upper end of the outer barrel body, and one end of the upper cover body is hinged to the upper side of the outer barrel body; an opening is formed in the upper end of the inner barrel; the inner barrel is arranged in the outer barrel body of the housing; the spraying assembly comprises a sprayer, a liquid storage bottle and a mist pump, a disinfectant is stored in the liquid storage bottle, the liquid storage bottle is communicated with an inlet of the mist pump through a pipeline, an outlet of the mist pump is communicated with the sprayer, and the sprayer is aligned to the opening in the upper end of the inner barrel. Different from a common garbage can, the epidemic prevention garbage can has the advantages that the spraying assembly is arranged, the disinfectant is contained in the liquid storage bottle, the upper cover body of the housing can be opened and closed once every time garbage is thrown, the spraying assembly can spray mist into the barrel once for sterilization and disinfection, and if a combustion phenomenon occurs in the garbage can, the spraying assembly sprays the mist to extinguish a fire until the disinfectant is completely sprayed off or the temperature is reduced.

The invention provides a degradable mulching film. The mulching film is prepared from the following raw materials in percentage by mass: 10-40 percent of composite bio-based modified plant extract, 20-60 percent of starch, 10-30 percent of polyvinyl alcohol, 1-5 percent of polyester, 5-25 percent of plasticizer, less than or equal to 0.4 percent of a reinforcing agent, less than or equal to 0.5 percent of a wet strength agent and less than or equal to 0.1 percent of a defoaming agent. A preparation method of the degradable mulching film comprises the following steps: preparing a composite bio-based modified plant extract; uniformly mixing the raw materials and granulating; and performing blow molding to form the film. According to the mulching film, pollution on soil caused by application of the mulching film can be effectively relieved, crop growth can be facilitated, a positive effect is played on agricultural production, the bio-degradation rate of a residual film which is used for four months can be over 85 percent, injurious insects can be repelled, breeding of injurious insects can be inhibited, and hazards and mycosis transmission can be reduced. The degradable mulching film has the characteristics of low cost, low energy consumption and comprehensive functions; the preparation process is simple and low in cost, and can realize effective utilization of raw material resources.

The invention belongs to the field of prevention and control of mice, and particularly relates to a mouse killing method for a farm. According to the invention, key areas such as a pipeline, an upperchannel, a lower channel and a mouse channel are brushed by using tracking paste; tracking powder is sprayed to mouse holes to prevent and control the mice, and an external environment is matched witha wax block of a mouse bait station to carry out prevention and control treatment, and rapid prevention and control of mouse holes of the external environment are carried out by a fumigant, and the mouse killing rate reaches up to 95% or above. The harm caused by grain pollution, food theft and building damage is remarkably reduced. The loss of economic livestock and poultry products and economiccrops is reduced, and the influences of power failure, fire, explosion and flood caused by mice in the production and management of industries and other industries are avoided; and disease transmission is reduced.

A self-sterilizing, face mask, respirator, open or enclosed face shield employs germicidal, far UV-C light safe for direct human exposure, mitigating risk of acquisition or transmission of respiratory pathogens, such as COVID 19. Device attachments or special lenses direct far UV-C light into the respiratory chamber and / or reservoir areas of infection including nasal, oropharyngeal or ocular areas to reduce or eliminate pathogens, serving also as a treatment modality. In a preferred embodiment the face shield has a removable front section, which can be exchanged or replaced with sections that include various functional attributes while maintaining germicidal protections and avoiding need to remove PPE during these activities including consumption of liquids, oral medications or food, as well as providing antimicrobial absorbent sneeze or cough guard or rhinorrhea secretion absorption, or a communication device to address communication deficiencies caused by respiratory protection barriers.

The invention provides a household fresh air cleaning and air purification integrated system and an air purification method thereof. The household fresh air cleaning and air purification integrated system is formed by an air distribution filter unit and a cleaning and moistening unit, and comprises an air incoming connection pipe, an air distributor, a filter box, a three-stage folded filter core, an activated carbon absorber, a suspension-type damping fan, a submersible pump, a water distributor, a cleaning device, disinfection cleaning solution, a negative-ion generator, a water tank, a wind outlet grid and a power supply controller. Outdoor fresh air is introduced to the air distributor through the air incoming connection pipe, and is input with appropriate amount of indoor air; and after being filtered and absorbed through activated carbon, the air is sent to the cleaning device through the fan to make contact with the cleaning solution delivered by the submersible pump to carry out cleaning. The disinfection cleaning solution washes off acidic gas pollutants and bacteria in the air, and meanwhile, water in the cleaning solution is evaporated into the air to increase the moisture of the indoor air. The purified clean air which is agreeable in temperature and humidity and carries negative ions is input indoors through the wind outlet grid. The system blocks a plurality of pollutants of the incoming air to keep the indoor air clean and circulated, thereby providing a high-quality human living environment.

The invention discloses a planting method of corns and vegetables intercropping. The method comprises the following steps: the first step, mature corn seeds in 90 to 140 days are selected and sowed 15 days before sowing time in a north-south direction with a wide row and then a narrow row arrangement, the spacing of the wide rows is 70 to 90cm and the spacing of the narrow rows is 40 to 45cm, thespacing between corn plants of a same row is 25 to 30cm; the second step, mulching film is used for covering in cold regions after the corn seeds are sowed; the third step, the plastic mulching film is removed after the corn seeds emerge, farmyard manure is used for scattered at the root parts of the corns, then the corns are earthed up, banked and watered; the fourth step, vegetable seedlings are cultivated among the corn seedlings after the corns emerge for 25 to 60 days, then the vegetable seedlings are transplanted to a corn field after growing for 25 to 55 days, and each vegetable seedling is planted among each two corn seedlings; the fifth step, the tops of 4 adjacent corns are bound together by intercropped climbing type vegetables and corn leaves are removed from the corncob to roots. The planting method of the invention not only improves land utilization rate and the economic benefit of per mu (mu: a Chinese unit of area, 1 / 15 of a hectare) yield without putting up any sproutrack but also reduces the disease and insect pests.