65results about How to "Inhibition hatching" patented technology

A topical insecticide is provided which can be safe to use and avoids many common deleterious side effects of conventional topical insecticides. The insecticide contains an insecticide and an insect growth regulator effective for killing fleas, flea larvae and flea eggs. The insecticide is formulated by dissolving an insecticidal (tetrahydro-3-furanyl) methylamine derivative or a chloronicotinyl insecticide and an insect growth regulator (IGR) in a solvent containing a quaternary ammonium salt to increase the solvency of the IGR component, thereby providing an insecticide having high insecticidal activity.

The invention relates to the field of deodorization, and especially relates to a plant extract and microbe composite deodorant. According to the invention, a plant extract and a microbial fermentation broth are mixed according to a ratio of 1:3; the mixture is placed in plastic buckets; and sealed anaerobic fermentation is carried out for 5-9 days, such that the composite deodorant is obtained. The microbial fermentation broth is obtained through the following steps: saccharomycetes, lactobacillus, bacillus subtilis, acetobacter pasteurianus and photosynthetic bacteria are inoculated according to the ratio of 1-4:2-6:5-25:1-4:1-2, and mixed fermentation is carried out; and after 60-84h of aerobic fermentation, the microbial fermentation broth is obtained. The invention aims at providing the plant extract and microbe composite deodorant. Deodorizing is realized with the combination of the plant extract and microbes. With the deodorant, fast and continuous deodorization can be realized; production cost is reduced; and a deodorization effect is good. With the deodorant, deodorization can be achieved fundamentally.

The invention belongs to the technical field of agricultural fertilizers, and particularly discloses a nitrogen-fixing microorganism compound fertilizer and a preparation method. The nitrogen-fixing microorganism compound fertilizer comprises polypeptide urea, a phosphatic fertilizer, polypeptide chelating potassium, a compound microorganism agent, a polypeptide compound, a soil conditioner, a medium trace element compound and a nutrition agent; the compound microorganism agent contains nitrogen-fixing bacteria, phosphate solubilizing and potassium solubilizing bacteria, photosynthetic bacteria, probiotics and adsorbate. The preparation method disclosed by the invention comprises the steps of preparing compound microorganism agent fermentation liquor, mixing the fermentation liquor with the adsorbate uniformly and preparing the compound microorganism agent and a microorganism envelope complex agent successively; mixing the microorganism envelope complex agent, a humic acid envelope organic fertilizer and a polypeptide envelope inorganic fertilizer uniformly, under the action of an electric field and a magnetic field, adding medium trace elements, spraying bone glue, and preparing nitrogen-fixing microorganism compound fertilizer particles. The compound fertilizer disclosed by the invention has the effects of adjusting nutrients, stimulating crop growth, improving the agricultural product quality, increasing yield and efficiency, preventing insect diseases, increasing soil fertility, loosening and improving soil quality and the like.

The invention discloses a nanometer biological environment-friendly multifunctional organic bamboo vinegar medicine fertilizer which is prepared by mixing and dissolving the following raw materials: 31-46 parts of bamboo vinegar liquid, 2-16 parts of nano-silicon dioxide, 1-2 parts of monopotassium phosphate, 0.2-0.3 part of penshibao (a brand) leaf fertilizer, 0.6-0.8 part of toosendanin, 0.6-0.8 part of radix aconite agrestis extract, 0.6-0.8 part of oxymatrine, 0.3-0.6 part of soapnut saponin, 0.2-0.6 part of rheum officinale anthraquinone, 0.15-0.16 part of natural pyrethrin essential oil, 2-4 parts of extract of opuntia and a proper amount of water. The bamboo vinegar medicine fertilizer disclosed by the invention can be used as a soil conditioner to adsorb the heavy metal in the soil and reduce the heavy metal content in the crops, thereby improving the quality of the crops.

The invention discloses a multifunctional special fertilizer for nursery stocks and a preparation method thereof. The multifunctional special fertilizer for nursery stocks is prepared from the following raw materials in parts by weight: 30-40 parts of kitchen garbage, 15-25 parts of tea-seed pancake, 10-15 parts of stone coal flag, 12-18 parts of skin of bamboo shoots, 10-15 parts of coffee grounds, 16-22 parts of broken branches and fallen leaves, 10-15 parts of dry red soil, 8-16 parts of attapulgite, 5-10 parts of sea mud, 1.5-2.5 parts of strain powder, 15-20 parts of urea, 5-10 parts of ammonium magnesium phosphate, 10-15 parts of calcium superphosphate, 2-4 parts of potassium fulvic acid, 5-10 parts of sodium carboxymethyl starch, 4-8 parts of chitosan oligosaccharide, 3-6 parts of bone meal, 1-2 parts of zinc citrate, 1-2 parts of copper sulfate, 10-15 parts of opal, 12-16 parts of bryozoatum, 5-10 parts of coral sand, 2-3 parts of tobacco stems, 3-4 parts of tomato leaves, 1-2 parts of chenopodium ambrosioides, 2-3 parts of parepigynum funingense, 1.5-2.5 parts of masson pine and 1-2 parts of buxus sinica leaves. The fertilizer disclosed by the invention is high, long and comprehensive in fertilizer efficiency, the ecological environment of crops is improved, the plant diseases and insect pests of soil are restricted, the granular structure of soil is improved, the soil hardening is eliminated, the soil is loosened, the yield-increasing effect is obvious, and the crop quality is obviously improved.

The invention discloses lecanicillium attenuatum and application of the lecanicillium attenuatum to controlling heterodera glycines. The lecanicillium attenuatum is lecanicillium attenuatum HNLA1306, which is preserved in CGMCC (China General Microbiological Culture Collection Center) with the preservation number of CGMCC No.9220. A fermentation liquor of the lecanicillium attenuatum can remarkably restrain incubation of eggs of heterodera glycines and has a strong killing effect on J2 larvas; the conidia of the lecanicillium attenuatum have a good parasitic effect on second-stage juveniles of bemisia tabaci; the lecanicillium attenuatum can be used for biological control of crop nematodes and bemisia tabaci.

A topical insecticide is provided which can be safe to use and avoids many common deleterious side effects of conventional topical insecticides. In one preferred embodiment of the invention, the active ingredient of the insecticide formulation is an amine derivative, having a nitro-methylene group, a nitroamino group or a cyanoamino group, which can be formulated to have low toxicity and excellent insecticidal activity. One particularly suitable insecticide is 1-{(tetrahydro-3-furanyl)methyl}-2-nitro-3-methylguanidine (dinotefuran), an aldulticide that will kill adult fleas dissolved in ethyl lactate.

The invention relates to the technical field of functional microorganism screening and application, in particular to a novel bacillus subtilis ZB1 with the preservation number of CCCTCC (China Center for China Center for Type Culture Collection) NO: M2020741, and provides application of the novel bacillus subtilis ZB1 in agricultural production. The bacillus subtilis can effectively prevent and treat root-knot nematode diseases, also has a good prevention and treatment effect on fungal diseases such as cucumber powdery mildew and the like, and is wide in application prospect.

The invention relates to a layer chicken premixing biochemical feed and a preparation process thereof. Quite few of the prior chicken feed is added with bacillus, or even if the feed is added with thebacillus, the proportion is unreasonable. The layer chicken premixing biochemical feed comprises the following components in portion by weight: 3 portions of the bacillus, 4 portions of lactobacillus, 40 portions of small peptide, 5 portions of poultry complex vitamin, 8 portions of poultry complex mineral microelement, 225 portions of calcium hydrophosphate, 242 portions of calcium carbonate, 62portions of cooking salt, 210 portions of fish meal, and 167 portions of meat meal. The layer chicken premixing biochemical feed is used as a chicken feed and the preparation process is used as the process for preparing the chicken feed.

The invention provides an efficient fertilizer for planting Chinese yams. The efficient fertilizer comprises the following raw materials in parts by weight: 12-30 parts of urea, 8-25 parts of calcium superphosphate, 8-20 parts of potassium sulfate, 5-12 parts of magnesium sulfate, 8-25 parts of amino acid raw powder, 8-30 parts of humic acid, 3-10 parts of a water-retaining agent, 4-10 parts of borax, 3-8 parts of manganese sulfate, 2-5 parts of zinc sulfate, 1-4 parts of sodium selenite, 2-7 parts of ferric nitrate, 2-6 parts of copper sulfate, 1-6 parts of ammonium molybdate, 3-10 parts of diatomite, 5-15 parts of a sustained-release long-acting agent, 3-15 parts of a highly continuous-cropping-resistant agent and 3-10 parts of a straw corruption agent. The efficient fertilizer provided by the invention contains various nutritional ingredients, fast and long-acting in fertilizer effect and high in utilization ratio, and is capable of inhibiting diseases and pests in soil, resisting continuous cropping, thereby improving the output of the Chinese yams.

A fertilizer special for roses comprises the following raw materials in parts by mass: 15 parts of N, 7 parts of P, 8 parts of P, 10 parts of amino acid, 10 parts of humic acid, 5 parts of microelements, 4 parts of rare earth elements, 8 parts of a water-retaining agent, 7 parts of a soil conditioner, 6 parts of a fertilizer synergist, 3 parts of a fertilizer controlled-release agent, 3 parts of a continuous cropping-resistant agent and 2 parts of a straw rotting agent. The fertilizer special for the roses is quick, lasting and comprehensive in fertilizer efficacy; the fertilizer special for the roses has high activity and lastingness of an organic fertilizer and a biofertilizer, has a fast-acting property of an inorganic fertilizer and has specificity of a microbial fertilizer and a bacterial fertilizer; the fertilizer special for the roses has a relatively good ion exchange function and a relatively good soil pH value-adjusting function, and can improve the structure of a soil aggregate so as to achieve special breathing, fertilizer-retaining, water-retaining, heat-preserving, drought-resisting and cold-resisting efficacies; the fertilizer special for the roses enables seedlings to grow tidily and strongly, enables roots to be developed, can reduce diseases and pests, enables stems and leaves to grow strongly, can ensure high fruit-setting ratio and high yield, and can increase the yield by more than 30%.

The invention discloses a Chinese herbal medicine composition for preventing and treating plant root-knot nematode as well as a preparation method and an application thereof, and belongs to the field of preparation and application of the Chinese herbal medicine composition for preventing and treating the plant root-knot nematode. The invention firstly discloses the Chinese herbal medicine composition for preventing and treating the plant root-knot nematode, and the Chinese herbal medicine composition comprises the following components: ginkgo leaf, semen torreya, folium mori, derris, tripterygium glycoside, licorice root and fructus toosendan. The invention also discloses a method for preparing the Chinese herbal medicine composition, and the method comprises the following steps: weighing the raw medicines according to a weight ratio; crushing, filtering and blending the raw medicines to obtain the Chinese herbal medicine composition. The Chinese herbal medicine composition disclosed by the invention can be used for effectively killing plant root-knot nematode, inhibiting incubation of root-knot nematode eggs and preparing a medicine or a reagent for preventing and treating the plant root-knot nematode.

The invention discloses a pruning method of castanea mollissima bearing trees and belongs to the technical field of pruning of castanea mollissima trees. According to the pruning method, pruning is conducted after leaves of the castanea mollissima trees completely fall each year. The pruning method comprises the following steps of pruning of the castanea mollissima trees in the early fruiting stage; pruning of the castanea mollissima trees in the full bearing stage, wherein pruning of strong bearing branch groups, treatment of reserved mother branches and thinning of nutrient branches are conducted. According to the growth characteristics of the castanea mollissima trees, the pruning method of the castanea mollissima bearing trees is provided. The pruning method is simple in technology andeasy to operate, reasonable distribution of the shapes and branches of the castanea mollissima trees can be guaranteed, thinning and reservation of the castanea mollissima trees are abstinent, the ventilation and air permeability are good, so that crowns are kept balanced, and leaf areas are increased; meanwhile, plant diseases and insect pests can be reduced, the tree potentials are restored tobe strong, the fruit yield is high, the quality is good, and the purposes of convenient management and increment of production and income are achieved.

The invention discloses effervescent tablets for preventing and treating rice grubs and a preparation method thereof. The effervescent tablets are prepared from, by weight, 30-40 parts of pink plumepoppy herb, 20-32 parts of datura seeds, 18-30 parts of leaves of nerium odorum, 8-20 parts of radix sophorae subprostratae, 8-16 parts of acid source, 8-16 parts of alkali source, 2-4 parts of lubricating agent, 50-60 parts of filler, 4-8 parts of adhesive, 2-4 parts of disintegrating agent and 1-3 parts of wetting agent. According to the effervescent tablets for preventing and treating the rice grubs, pink plumepoppy herb, datura seeds and leaves of nerium odorum with neurotoxicity on the rice field grubs are added firstly, nervous excitation of the grubs is caused, acetyl choline reacting is interdicted, convulsion and spasm happen, a stomach poisoning effect is achieved on the grubs, and the intestinal tissue and other digestion and absorption organs are damaged; on this basis, radix sophorae subprostratae with a broad-spectrum antibacterial function is added, the two substances are compounded and added and achieve a synergistic effect, and the rice grubs can be effectively killed.

The invention provides a pesticidal and bactericidal growth-promoting composition used for promoting the growth of crops. The pesticidal and bactericidal growth-promoting composition is a trace element fertilizer composed of the following components in percentages by weight: 30% to 50% of a component A, 40% to 60% of a component B and 5% to 10% of a component, wherein the component A is a plant-extracted pesticide which is any three selected from the group consisting of dried chinaberry seed powder, dried bitter gourd leaf powder, Pterocarya stenoptera leaf and bark powder, dried poisonous wolftooth-like bean powder and dried tobacco stem powder; the component B is a plant extracted bactericide which is any three selected from the group consisting of allicin powder, scutellaria bark powder, dried aloe powder, sophora alopecuroide powder and perilla plant powder; and the component C is any two selected from the group consisting of potassium, boron, calcium and zinc. The pesticidal and bactericidal growth-promoting composition provided by the invention is used for reinforcing disease-resistant and pest-resistant abilities of the crops, promotes the growth of the crops, greatly reduces the production cost of the crops through one-time application, and has significant effects of increasing yield and efficiency of rice and traditional Chinese medicines.

A topical insecticide is provided which can be safe to use and avoids many common deleterious side effects of conventional topical insecticides. In one preferred embodiment of the invention, the active ingredient of the insecticide formulation is an amine derivative, having a nitro-methylene group, a nitroamino group or a cyanoamino group, which can be formulated to have low toxicity and excellent insecticidal activity. One particularly suitable insecticide is 1-{(tetrahydro-3-furanyl)methyl}-2-nitro-3-methylguanidine (dinotefuran), an aldulticide that will kill adult fleas dissolved in ethyl lactate.

The invention discloses a kiwi fruit cultivation method, which comprises the steps of site selection, site preparation, seedling selection, seedling and topdressing, shaping, preventing pests and diseases, and harvesting. The method of the invention can increase fruit size, increase coloring, increase sugar content, improve fruit quality, and the yield of kiwifruit has been increased by more than 30%. Watering once a month can also promote the growth of the root system of kiwifruit plants, restore tree vigor, and enhance the growth of leaves. Photosynthetic ability, promote flower bud differentiation, and lay the foundation for the high yield of kiwifruit in the following year.

The invention discloses a method for evaluating toxicity of organic pollutants of reclaimed water based on caenorhabditis elegans. The method comprises the following steps: after enriching the organicpollutants in the reclaimed water and filtering bacteria, dissolving the reclaimed water in a salt solution; respectively exposing L4-stage caenorhabditis elegans in a blank salt solution and the salt solution containing the enriched organic pollutants of the reclaimed water; respectively measuring the number of spawns; performing significant difference analysis on the number of spawns; combiningwith enrichment times; and utilizing a toxicity evaluation rule of the organic pollutants of the reclaimed water to obtain a toxicity level. The method provided by the invention utilizes characteristics of simple structure, easy culture, short reproductive cycle and small individual difference of the caenorhabditis elegans, combines enrichment of the organic pollutants with bacterial filtering treatment to evaluate the toxicity of the reclaimed water, has advantages of being high in efficiency, simple in operation, low in cost and easy to promote, maintains balance of osmotic pressure of a cell system of the caenorhabditis elegans, inhibits incubation of progeny spawns by dropwise adding 5-fluorouracil, and has improved accuracy and simplicity, thereby being wide in application prospect.

A topical insecticide is provided which can be safe to use and avoids many common deleterious side effects of conventional topical insecticides. In one preferred embodiment of the invention, the active ingredient of the insecticide formulation is an amine derivative, having a nitro-methylene group, a nitroamino group or a cyanoamino group, which can be formulated to have low toxicity and excellent insecticidal activity. One particularly suitable insecticide is 1-{(tetrahydro-3-furanyl)methyl}-2-nitro-3-methylguanidine (dinotefuran), an aldulticide that will kill adult fleas dissolved in ethyl lactate.

The invention discloses an antibacterial culture medium for planting pleurotus eryngii. The antibacterial culture medium is characterized by being prepared from the following components in parts by weight: 36 to 39 parts of corncobs, 28 to 32 parts of sawdust, 6 to 8 parts of cornmeal, 4 to 6 parts of soybean meal, 11 to 14 parts of bran, 7 to 9 parts of bagasse residues, 1.2 to 1.6 parts of lime, 1.2 to 1.6 parts of calcium bicarbonate, 4 to 6 parts of herbal medicine additives, and 0.2 to 0.4 part of trace additive. According to the antibacterial culture medium disclosed by the invention, a sterilization effect of the culture medium can be achieved, and normal growth of the pleurotus eryngii also can be promoted at the same time; moreover, the pleurotus eryngii can be protected from being polluted by chemical medicines, so that the healthy and safe edible pleurotus eryngii can be provided for people.

The invention discloses a multifunctional water-retaining agent used for agricultural and forestry crops and a preparation method and a use method thereof.The multifunctional water-retaining agent is prepared from, by mass concentration, 20-30% of n-dodecanol, 2-6% of n-hexadecyl alcohol and 1-3% of an emulsification agent.The water-retaining agent can change water retaining capacity in plants, and has the advantages of being good in water-retaining effect, capable of preventing diseases and pests, promoting photosynthesis, increasing the yield of the agricultural and forestry crops and the like.

The invention provides new application of potassium formate for preventing and curing southern root knot nematode. The new application is that the potassium formate is used for preparing a southern root knot nematode pesticide; in the pesticide, the potassium formate can be taken as an active ingredient alone and can also be compatible with other ingredients for preventing and curing the southern root knot nematode together as an active ingredient. The pesticide is a potassium formate solution which is safe, non-toxic and efficient when used for preventing and curing the southern root knot nematode, and the egg incubation inhibition rate of the southern root knot nematode can reach 60%-90% or above when the concentration of the potassium formate solution is 4.00-10.00 mM / L; the second instar larvae fatality rate range of the southern root knot nematode is 10%-30% when the concentration of the potassium formate solution is 4.00-10.00 mM / L.

Disclosed is a nematicide of trans structure containing a lactone ring, characterized in that the general structural formula I is as shown in (I). R1, R2, R3, R4 and R5 are selected from hydrogen, cyano, fluorine, chlorine, bromine, an alkyl containing 1 to 4 carbon atoms, an alkoxy containing 1 to 4 carbon atoms, alkoxyphenyl, an alkoxy containing 1 to 4 carbon atoms and a hydrogen atom on the carbon atom substituted by one or more chlorine atoms, an alkoxy containing 1 to 4 carbon atoms and a hydrogen atom on the carbon atom substituted by one or more fluorin atoms, nitro or amino; R6 is selected from hydrogen, fluorine and chlorine; the nematicide of trans structure containing the lactone ring is used for controlling agricultural nematode diseases; because the nematicide of trans structure containing the lactone ring comprises the structure of a polyfluorobutene and a lactone ring, the nematicide has a good control effect on eggs and the second-stage juveniles of a root-knot nematodes, and in particular can fully inhibit the hatching of crop root-knot nematode eggs; and same has a low toxicity, and less residue in crops, thus improving the safety of agricultural production.

The invention discloses an application of rifampicin in preparation of tobacco whitefly insecticides. The invention firstly proposes that the rifampicin can be taken as an agricultural antibiotic for preparing the tobacco whitefly insecticides and controlling hemiptera piercing sucking insects such as whiteflies. Compared with the prior art, the application disclosed by the invention can utilize the rifampicin to prepare the tobacco whitefly insecticides, so that the egg laying amount of tobacco whitefly F1-generation females can be greatly reduced, the incubation of insect eggs can be inhibited and further the population growth of tobacco whitefly can be effectively controlled.

The invention discloses a plant care solution, an organic fertilizer and a preparation method. The plant care solution comprises the following components in percentages by weight: 0.5 to 2.5% of fish meal, 0.5 to 2.5% of bone powder, 3 to 5% of bean pulp, 0.5 to 2.5% of wheat bran, 3 to 5% of molasses, 0.5 to 1% of a vinasse enzyme cofactor and 83 to 85% of purified water, wherein the percentages of the components sum to 100%. The humic acid containing concentrated composite water-soluble plant care solution provided by the invention has the characteristics of simple preparation process, low energy consumption, no three wastes, stable and reliable product quality, etc.

The invention relates to the field of deodorizer application, in particular to a deodorizing method by matching a microbial deodorizer with fog gun equipment. The method comprises the following steps of deodorizer preparation, equipment installation, deodorizer adding, spraying liquid preparation and spraying. The invention aims at providing the deodorizing method by matching the microbial deodorizer with the fog gun equipment. The microbial deodorizer is automatically sprayed to a refuse landfill through the fog gun equipment; in addition, the spraying time, the spraying quantity and the size of sprayed fog drops can be well and automatically controlled; and then, the microbial deodorizer fog drops can sufficiently react with odor molecules; a great number of deodorizers and labor can be saved; a good deodorization effect is achieved.

The invention provides a biological control method for peanut root-knot nematode disease, including the steps of firstly, preparing biological fermentation liquid by using human and livestock manure,furfural residues, fly ash, activated sludge treatment liquid, and a composite fermentation preparation as raw materials, then soaking seeds with the biological fermentation liquid, digging low ridges, sowing at the bottom of the ridges, and spraying diluted biological fermentation liquid before and after sowing.Through pretreatment of peanut seeds and improvement of the sowing environment, the incubation of root-knot nematode eggs and infestation of root-knot nematodes on peanut roots can be effectively inhibited, and the method is safe and effective in preventing and controlling peanut root-knot nematodes.In addition, the biological fermentation liquid is rich in beneficial active bacteria, which can improve the growth environment of peanut root systems, and promote the absorption of water and nutrients by the peanut root systems, thereby increasing yield and quality.

The invention relates to a special bio-organic fertilizer using DDGS as a main material for tobacco fermentation. The special bio-organic fertilizer comprises the following raw materials in parts by weight: 67-81 parts of DDGS, 10-14 parts of rapeseed cake, 10-14 parts of biogas residue, 1.5-2.5 parts of mother liquor, 0.05-0.15 part of nutrient element, 0.06-0.1 part of amino acid, 1.5-2.3 partsof humic acid, 0.01-0.02 part of medium trace element, 0.05-0.2 parts of heat-resistant enzyme, 0.05-0.1 part of thermophilic microbial inoculum, 0.3-0.7 part of ammonium sulfate and 1-2 parts of branpowder. the special bio-organic fertilizer has the beneficial effects that the special bio-organic fertilizer for the fermented tobaccos is high in fertilizer efficiency, long in fertilizer efficiency and comprehensive in fertilizer efficiency; the fertilizer has the high activity and long-term effect of organic fertilizers and biological fertilizers, and also has the fast-acting property of inorganic fertilizers and the special effect of microelement fertilizers and bacterial fertilizers, has complete nutrient elements required by plants, and is scientific in proportion. The beneficial biological strains in the special tobacco fertilizer produced by the invention can accelerate rapid cyclic decomposition of substances, release of various nutrient elements, nitrogen fixation, phosphate solubilization and potassium solubilization, promote photosynthesis of plants, and greatly improve the utilization rate and fertilizer efficiency of the fertilizer.

The invention discloses a negative pressure deodorization system. The negative pressure deodorization system comprises a cabinet, and an inner cavity of the cabinet is partitioned into an upper cavity and a lower cavity through a partition plate. The partition plate is provided with an air guide port for making the upper cavity and the lower cavity communicated. The side edge of the cabinet is provided with an air outlet communicated with the upper cavity and is further provided with an air inlet communicated with the lower cavity. In the lower cavity, a fan, a microorganism attachment box and a dehydration layer are arranged from the air inlet to the interior in sequence. In the upper cavity, a fan, an activated carbon filtration layer and a high-energy ion tube are arranged from the air outlet to the interior in sequence. The air guide port is located between the high-energy ion tube and the dehydration layer. A bottom box is arranged at the bottom of the cabinet. A circulation box is arranged on the partition plate. The upper end of the microorganism attachment box is communicated with the circulation box, and the bottom end of the microorganism attachment box is communicated with the bottom box. A water pump is arranged in the circulation box and connected with sprayers through pulse electronic valves. The sprayers are evenly arranged at the upper end of the microorganism attachment box. The water pump is communicated with the bottom box through a liquid suction tube. A microbial deodorizer is placed in the bottom box. The negative pressure deodorization system is good in deodorization and sterilization effect, capable of preventing secondary pollution and convenient to install and use.