39 results about "Atrazine" patented technology

The invention relates to a combined mouse and insect killing composition, a combined mouse and insect killing bait and a combined mouse and insect killing method for simultaneously inhibiting reproduction of field mice and killing ectoparasites of the field mice. The combined mouse and insect killing composition comprises ivermectin and atrazine, the weight ratio of the ivermectin to the atrazine is (1-9): (9-90). The mouse and insect combined killing bait comprises the mouse and insect combined killing composition and basic bait. The combined mouse and insect killing method comprises the step of applying the combined mouse and insect killing composition or the combined mouse and insect killing bait to wild mice. The mouse and insect combined killing composition and bait can control the population density of mice by inhibiting the reproductive system function of the mice in the field on the premise of not directly killing the mice, and meanwhile effectively kill parasites such as fleas, ticks and the like on the body surfaces of the mice, and block a disease transmission chain. Therefore, the combined mouse and insect killing composition and the bait have the combined control effects of inhibiting reproduction of field mice and killing ectoparasites of the field mice.

The invention discloses preparation of a B and N co-doped dual-emission ratio type fluorescent carbon quantum dot fluorescent probe and application of the B and N co-doped dual-emission ratio type fluorescent carbon quantum dot fluorescent probe in atrazine detection, and belongs to the technical field of nano functional materials and fluorescence analysis and detection. When the fluorescent carbon quantum dot fluorescent probe is prepared, the optimal reaction temperature is 160 DEG C, the optimal heating time is 5 hours, the optimal raw material ratio of 3-CPBA to PPD is 2: 1, and the optimal pH is 8. The concentration range of the detected atrazine is 0.15-600 [mu] g / L, the I660 / I380 ratio and the concentration of the atrazine show a good linear relationship, the linear fitting equation is y = 0.004 [atrazine] + 0.29, and the detection limit is 0.187 [mu] g / L. 3.5 min is selected as the detection time, so that both efficiency and accuracy can be considered. The probe has a specific recognition capability on atrazine in actual sample detection, and has a good detection effect. The method has great significance in the field of atrazine detection.

The application provides a herbicide composition for preventing and treating cyperus iria, a preparation method and application thereof, and aims to solve the technical problem of lacking effective and controllable herbicide for cyperus iria and various monocotyledonous and dicotyledonous weeds in the field. The herbicide composition is composed of effective components and necessary adjuvants, wherein the effective components are composed of atrazine, halosulfuron, thifensulfuron-methyl and fluroxypyr according to a weight ratio of 9.0-54.0:0.75-3.0:0.75-3.8:1.5-6.5. The herbicide composition has rapid and effective prevention and control effects on common annual grass weeds and broadleaf weeds in the millet field, and can eradicate the malignant weed cyperus iria. The herbicide composition is safe to the millet, and can also play a certain role in controlling the growth of the millet, reduce the plant height of the millet, reduce the risk of lodging of the millet, and improve the yield of the millet.

The application belongs to the field of microorganisms and the field of environmental protection, and provides at least one urea-producing Paenarthrobacter ureafaciens for degrading atrazine, wherein the urea-producing Paenarthrobacter ureafaciens is preserved in the China General Microbiological Culture Collection Center of the Institute of Microbiology, Chinese Academy of Sciences, located at No. 1, Xiliujia, Beijing Chaoyang District, and has the preservation numbers of CGMCC No. 37944 or CGMCC No. 37943, respectively. The application obtains the urea-producing Paenarthrobacter ureafaciens with high efficiency, wide spectrum and strong environmental adaptability through screening, and finally realizes rapid and complete repair of atrazine contaminated soil by matching an optimized microbial agent formula and a preparation process, so as to reduce repair cost, promote the large-scale application of the microbial repair technology in farmland and industrial pollution sites, and solve many technical bottlenecks in the field of atrazine pollution repair.

The invention discloses a method for accelerating drying and dehydration of alfalfa, and belongs to the technical field of alfalfa seed breeding. The method comprises the following steps that 40-50 days after the full-bloom stage of alfalfa, 50-150 mL of 30% nitra.nicotian.atrazine dispersible oil suspending agent is used per mu, 25-35 L of water is added, and leaf spraying is conducted. According to the method provided by the invention, the drying ripening agent is sprayed before alfalfa seeds are harvested, so that green leaves of alfalfa are withered and yellow and fall off, the seeds are relatively consistently ripe, the defoliation rate and the relative water loss rate of stems and leaves of alfalfa are remarkably increased, the drying time of alfalfa is shortened, and the seed yield and the germination rate are increased.

The invention belongs to the technical field of pesticide residue substance detection, and discloses an optimized rapid detection and analysis method for atrazine and four degradation products in water, and the method comprises the following steps: S1, experimental conditions, S2, chromatographic condition optimization, S3, mass spectrum condition optimization, and S4, method performance index verification. According to the method, on the basis of the prior art, the types of target objects are increased, analysis conditions are optimized, the analysis sensitivity of atrazine and metabolites is greatly improved, meanwhile, compared with a national standard method, the method does not need pretreatment, direct sample injection is adopted, complex pretreatment steps such as liquid-liquid extraction or solid-phase extraction are omitted, and the method is suitable for large-scale industrial production. The time consumption is short, the analysis speed is high, and the rapid monitoring requirement can be well met.

The invention discloses a preparation method and application of block polyether for an atrazine oil suspending agent, and relates to the technical field of oil suspending agents. The block polyether is modified through phosphorus pentoxide, and the dispersion effect of the block polyether in the oil suspending agent is enhanced; the diatomite is modified with sulfuric acid and maleic anhydride, so that the specific surface area is increased, the diatomite can load more borate and hexadecyl trimethyl ammonium bromide, the surfactant with better dispersity is prepared, and the dispersity of the oil suspending agent is enhanced; soybean oil is added when the oil suspending agent is prepared, so that the stability of the oil suspending agent can be improved.

The invention discloses a method for directionally immobilizing tyrosinase by using magnetic polystyrene nanospheres and application, the method comprises the following steps: firstly, modifying the surfaces of the magnetic polystyrene nanospheres, introducing chloracetyl, then substituting chlorine by using ethylenediamine, covalently grafting concanavalin as a carrier of tyrosinase through amino by using Schiff base reaction, and preparing the magnetic polystyrene nanospheres by using a covalent covalent grafting method. Tyrosinase is immobilized on the surfaces of the magnetic polystyrene nanospheres, directional immobilization of the tyrosinase and efficient enrichment of atrazine are achieved, non-specific binding of trace atrazine in a matrix and enzyme active sites is promoted through the adsorption effect, the activity of the tyrosinase is inhibited, and the activity of atrazine is inhibited. By utilizing the synergistic effect of an enzyme activity indicator catechol and a color indicator 4-aminoantipyrine, the atrazine residues in the complex fruit and vegetable matrix can be rapidly and effectively detected.

The invention relates to arthrobacter sp., an arthrobacter sp. Microbial inoculum and application. The classification name of the pseudoarthrobacter sp. Is Pseudarthrobacter sp., and the preservation number of the pseudoarthrobacter sp. Is GDMCC 1.4159. The pseudoarthrobacter sp. Has the advantages that the pseudoarthrobacter sp. Can be used for preparing the bacillus subtilis; the pseudoarthrobacter inoculant contains a culture medium and a thallus, and the thallus contains pseudoarthrobacter of which the preservation number is GDMCC 1.4159. The arthrobacter sp. Obtained by the invention can degrade atrazine and organophosphorus, reduce the pollution of atrazine and organophosphorus in pesticides to the environment, and effectively reduce the harm of the pesticides to the environment and human beings; in addition, the pseudoarthrobacter disclosed by the invention not only is relatively high in degradation efficiency, but also is free from secondary pollution, and has a relatively good application value.

The invention belongs to the technical field of organic contaminated soil remediation, and particularly relates to a molten salt modified composite charcoal loaded microorganism immobilized microsphere as well as a preparation method and application thereof. According to the method, salt-tolerant functional microorganisms are loaded on the basis of molten salt modified biomass-plastic composite biochar, and the microspheres for efficiently degrading atrazine are prepared through sodium alginate-calcium lactate enhanced immobilization; the immobilized microspheres of the molten salt modified composite biochar loaded microorganisms are particularly suitable for targeted repair of persistent herbicides in high-salt farmland soil.

The utility model belongs to the technical field of storage devices, and discloses a storage device for research and development of mirabilite, nicotine and atrazine herbicides, which comprises a storage box, the outer surface of the storage box is fixedly connected with a support through reinforcing ribs, the top end of the storage box is provided with a sealing cover, and the inner surface of the sealing cover is provided with an anti-precipitation mechanism. The anti-precipitation mechanism comprises a first power motor, the first power motor is fixedly connected with the sealing cover, the output end of the first power motor penetrates through the sealing cover and is fixedly connected with a rotating shaft, and the outer surface of the rotating shaft is rotationally connected with a stirring frame. And the gear I is driven to rotate, so that the gear II rotates while revolving around the gear ring, and the stirring blades on the three stirring rods can stir the herbicide in the storage box in all directions and at multiple angles, thereby effectively preventing the herbicide from precipitating and ensuring that the concentration of the herbicide is always uniform.

The application discloses a Enteromorpha-based high-dispersed iron atom modified carbon-based nanomaterial and a preparation method and application thereof, and belongs to the field of biological comprehensive utilization and marine environmental pollution treatment. The Enteromorpha biomass is high-temperature calcined in an inert atmosphere at >700 DEG C, the obtained material is mixed with graphite-type carbon nitride, the mixed material is uniformly mixed, and the Enteromorpha-based high-dispersed iron atom modified carbon-based nanomaterial is obtained by heat treatment at 300-500 DEG C for 1-3 hours. The preparation method is simple and efficient, saves time and effort, is environment-friendly and energy-saving, solves the problems of low utilization rate of Enteromorpha and environmental pollution, greatly expands the application range of the graphite-type carbon nitride material g-C3N4, improves the degradation efficiency of herbicides, and for atrazine, the degradation efficiency can reach nearly 80% in 10 minutes, and the degradation rate is 0.13112 min ‑1 , which is 4.39 times of the degradation rate of g-C3N4.

The invention belongs to the technical field of pesticide residue treatment. The invention provides a preparation method of biochar microspheres for relieving soybean atrazine residual phytotoxicity. The preparation method comprises the following steps: step 1, obtaining biomass powder; step 2, carbonizing the biomass powder, taking out the biomass powder after cooling, grinding and sieving to obtain charcoal powder; 3, weighing charcoal powder, adding the charcoal powder into the sodium alginate aqueous solution, uniformly stirring, sequentially adding a polyethyleneimine aqueous solution and a glutaraldehyde aqueous solution, and stirring to obtain a mixed solution; step 4, dropwise adding the mixed solution into a calcium chloride aqueous solution, and curing into a ball to form a microsphere; and 5, collecting the microspheres, and freeze-drying to obtain the biochar microspheres. Compared with biochar, the biochar microspheres prepared by the invention show more excellent adsorption performance on atrazine, can significantly reduce the accumulation amount of atrazine in soybean plants, has a promotion effect on the growth of the soybean plants, and effectively alleviates the problem of phytotoxicity of soil residues caused by atrazine to soybeans.

The application relates to the field of pesticide formulations, and particularly discloses a dispersible oil suspension agent containing nicosulfuron, mesotrione and atrazine and a preparation method thereof. The dispersible oil suspension agent containing nicosulfuron, mesotrione and atrazine comprises the following raw materials in mass percentage: 38.2-45.1% of effective substance, 0.5-1% of dispersant, 12-14% of emulsifier, 0.3-0.5% of thickening agent, and the rest is methyl oleate, wherein the effective substance is mesoporous silica loaded with effective components; in addition, the preparation method has the advantages of improving the stability of the composite herbicide.

The application discloses an application of chitosan in reducing the atrazine phytotoxicity of plants. In the research, it is found that a chitosan water agent has the effect of relieving the atrazine phytotoxicity of plants. The application mode of the chitosan water agent includes root irrigation and spraying, and the phytotoxicity relieving effect is increased with the increase of the concentration. Transcriptome sequencing is carried out to explore the influence mechanism. In the soil culture condition, multiple spraying can well relieve the atrazine phytotoxicity of rapeseed. Therefore, the chitosan water agent has important significance for relieving the atrazine phytotoxicity of plants.

The invention relates to the technical field of environmental microbiological technology and agricultural bioremediation, and discloses a rhodococcus bacterium X-20 and application thereof. The Rhodococcus sp. X-20 can efficiently degrade various pesticides in liquid and soil environments, including carbendazim, dinotefuran, atrazine, pendimethalin and cyhalothrin, and especially shows specific efficient degradation ability to carbendazim. In addition, the strain has various plant probiotic functions: the strain can secrete indole-3-acetic acid (IAA), generate iron carriers, dissolve inorganic phosphorus and antagonize phytophthora nicotianae, and the growth of tobacco seedlings can be remarkably promoted. Field experiments show that the strain can relieve growth inhibition of compound pesticide pollution on tobacco, and the strain can be used for preparing microbial agents and applied to bioremediation of pesticide-polluted soil and green agriculture.

The invention relates to the technical field of substance detection, in particular to a rapid detection system for screening atrazine in a food sample. The method comprises the following steps: at each sampling moment, respectively removing a background gray value of a test paper background region image from gray values in a detection band region image and a water absorption pad region image, sequentially obtaining the color development intensity of a detection band and the color development intensity of a water absorption pad, and obtaining the throughput of the detection band according to the color development intensity of the detection band and the color development intensity of the water absorption pad; dividing the detection zone into an upstream zone and a downstream zone, obtaining the color development intensity difference of the upstream zone and the downstream zone, and obtaining the blocking increase degree according to the change trend distribution of the color development intensity difference along with the throughput of the detection zone; and performing blocking detection according to the detection band throughput, the detection band color development intensity and the blocking increase degree at the final moment in sequence. According to the method, false positive caused by physical blockage and true positive caused by chemical inhibition can be effectively distinguished, and the detection accuracy is improved.

The invention discloses a preparation method of hyperelastic pyrrole-doped graphene sponge and application of the hyperelastic pyrrole-doped graphene sponge in efficiently blocking and controlling atrazine in soil and recycling, and relates to the technical field of soil pollution remediation. The method comprises the following steps: dropwise adding pyrrole into a graphene oxide aqueous solution, uniformly mixing, and carrying out ultrasonic treatment; after ultrasonic treatment is finished, putting into a reaction kettle, heating to 100-220 DEG C, and carrying out hydrothermal reaction for 2-24 hours; after the reaction is finished, taking out and cleaning to obtain pyrrole-doped graphene hydrogel; and soaking the pyrrole-doped graphene hydrogel in an ethanol solution, standing, taking out, and freeze-drying to obtain the hyperelastic pyrrole-doped graphene sponge. The invention can obtain the preparation method of the hyperelastic pyrrole-doped graphene sponge and the application of the hyperelastic pyrrole-doped graphene sponge in efficiently blocking and controlling atrazine in soil and realizing recovery.

The invention belongs to the field of pesticides, and particularly relates to a ternary weeding composition and application thereof. The ternary weeding composition comprises an active component A, an active component B and an active component C with effective weeding amounts, and the active component A is ethoxysulfuron; the active component B is quinclorac; and the active ingredient C is atrazine. The composition can effectively prevent and remove various weeds such as gramineous weeds, and has the characteristics of expanding the weed control spectrum, reducing the application amount, generating a synergistic effect, solving resistant weeds and the like.

This application discloses a herbicidal composition, herbicide, and application for controlling dodder, relating to the field of pesticide compounding technology. The active ingredients of this herbicidal composition are cyclosulfonyl, nicosulfuron, and atrazine, with a mass ratio of (5-9):(2-6):(11-39). By compounding cyclosulfonyl, nicosulfuron, and atrazine in a specific ratio, a triple-blocking synergistic mechanism is formed, achieving synergistic eradication of both the above-ground parts and underground haustoria of dodder. In this application, cyclosulfonyl, nicosulfuron, and atrazine exhibit significant synergistic effects in controlling dodder within a specific ratio range. Field trials have demonstrated that it can efficiently eradicate dodder, is safe for crops, and can significantly increase crop yield.

Embodiments described herein are directed to methods and systems for treating wastewater or storm water using vermifiltration. The wastewater can come from various sources, such as agricultural sources, municipal and industrial sources, wineries, the dairy industry, and many others. The systems can include vermicomposting beds that are capable of removing high amounts of contaminants, pollutants, and / or toxic substances from wastewater. The wastewater may be applied to vermicomposting beds, for example, by an irrigation system. The irrigation system may provide, for example, improved bed coverage and more even saturation. The vermicomposting beds can remove various harmful substances from the wastewater, such as petroleum products; industrial chemicals; heavy metals (e.g., lead, mercury, cadmium, arsenic); pesticides (e.g., atrazine, chlorpyrifos); and organic compounds (e.g., phenols, polycyclic aromatic hydrocarbons (“PAHs”), polychlorinated biphenyls (“PCBs”)).

This invention provides a compound herbicidal composition comprising mesotrione, atrazine, and cypermethrin, which is prepared as a suspension concentrate. By using specific adjuvants, it solves the problems of decomposition of mesotrione and cypermethrin, and crystallization of atrazine. The product is stable for a long time, has a long shelf life, and can also broaden the herbicidal spectrum and improve the herbicidal effect. It can solve the problem of weed resistance to mesotrione single agent and binary compound products.

The utility model belongs to the technical field of dicyclomet, atrazine dispersible oil suspending agent mixing, and disclose a kind of dicyclomet, atrazine dispersible oil suspending agent mixing device for spraying, including mixing box, the top left side of the mixing box is equipped with dosing pipe one, the outside spiral of dosing pipe one is equipped with sealing cover, the top of sealing cover is equipped with mixing assembly;The mixing assembly includes motor fixed with the sealing cover, the main shaft end of motor is equipped with transmission shaft, the medicine spraying soft belt structure in the mixing assembly located at the bottom of mixing box, can be by high-speed swing mode, dicyclomet, atrazine dispersible oil suspending agent inside hollow tube is directly mixed with water stirring, and smaller medicine outlet, can effectively avoid a large amount of dicyclomet, atrazine dispersible oil suspending agent directly swing out, mixing is not enough uniform condition, keep that mixing concentration is more uniform.

This invention discloses the preparation of a copper eutectic solvent-modified biochar catalyst and its application in the activation of persulfate degradation of atrazine, relating to the fields of water pollution control and environmental functional materials technology. The preparation method includes the following steps: mixing biomass raw materials with acid, impregnating and activating them, and then pre-carbonizing to obtain unmodified biochar; mixing the unmodified biochar with a copper eutectic solvent and carbonizing at high temperature to obtain the copper eutectic solvent-modified biochar catalyst. The preparation method of this invention greatly simplifies the process flow and makes the preparation process efficient and convenient. Simultaneously, the copper eutectic solvent has advantages in dispersibility and low cost, not only effectively loading copper nanoparticles to improve the catalytic activity of biochar, but also significantly reducing the preparation cost. The copper eutectic solvent-modified biochar catalyst prepared by the method of this invention can efficiently activate persulfate degradation of atrazine.

The invention discloses an atrazine immunodetection method taking a nano antibody as a switch and a detection kit, and relates to the technical field of rapid pesticide detection. According to the immunodetection method provided by the invention, a direct antigen and antibody competition mode is replaced by ligand replacement, and the residual atrazine is detected by using an immunoassay method taking a nano antibody as a switch, so that errors are reduced. The immunodetection method provided by the invention has important theoretical significance for improving the immunoassay sensitivity and reducing the cross reaction rate in immunoassay, and the detection method provided by the invention can realize high-sensitivity, high-efficiency and accurate detection of atrazine residues in a sample.

The application discloses a kind of advanced oxidation device and method for degrading new pollutants in water, the device includes reaction pool, ozone generator, sulfite storage tank, ozone generator is used to add ozone to reaction pool, sulfite storage tank is used to add sulfite to reaction pool;Reaction pool is equipped with water inlet and water outlet. When using, inject the water sample to be treated into reaction pool, start ozone generator, sulfite storage tank to carry out the addition of ozone and sulfite;The molar ratio of ozone and sulfite addition in reaction pool is 5:1~1:1, the molar ratio of new pollutant concentration in the water sample to be treated and ozone addition amount is: 1:10~1:100.The advanced oxidation system of ozone activated sulfite constructed by the application has high yield of sulfate radical and hydroxyl radical, and can rapidly degrade new pollutants within 5 minutes, and the degradation efficiency of new pollutants such as naproxen, sulfamethoxazole, carbamazepine, atrazine and chloramphenicol in water reaches more than 80%.

The invention relates to the technical field of pesticide preparations, and discloses a pesticide suspending agent formula containing a thickening agent and a production method of the pesticide suspending agent formula. 22%-26% of atrazine; 3%-5% of fatty alcohol-polyoxyethylene ether; 5%-7% of a polycarboxylate dispersant; 2%-4% of sodium lignin sulfonate; 0.9%-1.8% of magnesium aluminum silicate; 3%-6% of ethylene glycol; 1.5% to 2.5% of sorbitol; 0.1%-0.3% of sodium benzoate; 0.8%-1.6% of borax; 0.1%-0.4% of a defoaming agent; 0.3%-0.6% of a thickening agent; a composite dispersion system with a polycarboxylate dispersing agent as a main component and sodium lignin sulfonate as an auxiliary component is constructed and cooperates with a thickening suspension system compounded by optimized xanthan gum and aluminum-magnesium silicate, so that the prepared pesticide suspending agent can achieve multiple stable effects from electrostatic repulsion and steric hindrance to three-dimensional network physical barrier; therefore, the long-term suspension stability of the pesticide suspending agent finished product is improved, and the phenomena of sedimentation, water separation and caking in the storage process are effectively prevented.

The invention discloses Candida tropicalis AX1 and application thereof, the preservation number of the Candida tropicalis AX1 is CCTCC (China Center for Type Culture Collection) NO: M20251761, and the Candida tropicalis AX1 is preserved in China Center for Type Culture Collection on August 4, 2025. The strain is separated from southern humid and hot soil, shows good environmental adaptability, can grow in a temperature range of 24-36 DEG C, has an optimal temperature of 30 DEG C, has an atrazine degradation rate of 20.78% at a high temperature of 36 DEG C, and is suitable for soil remediation application in southern high-temperature and high-humidity areas.

The invention relates to electrochemical detection, and discloses a multi-unit rotary detection device and a detection method for atrazine detection. The device comprises a base, a rotating disc is arranged on the base, a plurality of screen printing biosensors which are evenly arranged around a rotating shaft of the rotating disc are arranged on the upper end face of the rotating disc, and an atomization cleaning assembly for cleaning a working electrode area and a contactor making contact with an electrode lead are further installed on the base. The silk-screen printing biosensor can sequentially move to the lower portions of the atomization cleaning assembly and the contactor under the rotation effect of the rotating disc. According to the portable and flexible atrazine detection device and the corresponding detection method, a plurality of samples can be continuously and rapidly detected, the atrazine concentration in soil pore water can be rapidly obtained, and farmers are supported to make timely decisions between succeeding crop planting and soil remediation.