53 results about "Atrazine" patented technology

The invention discloses a microbial composition for synergistically degrading atrazine and 2, 4-D and a microbial agent produced by the microbial composition. The invention relates to a microbial composition, which is prepared from Arthrobacter sp. AT5 with the preservation number of Arthrobacter sp. AT5, Sphingobium sp. L3 with the preservation number of Sphingobium sp. L3 and Bacillus sp. R20C with the preservation number of Bacillus sp. The microbial composition disclosed by the invention and the microbial agent produced by the microbial composition can degrade two pollutants, namely atrazine and 2, 4-D. The problem of pollution caused by triazine and phenoxy carboxylic acid herbicides widely used in global agricultural production is successfully solved, so that the ecological environment is protected, and human health is maintained.

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 preparation method of a nicosulfuron, mesotrione and atrazine mixed dispersible oil suspending agent (OD) beneficial to grinding. The preparation method comprises the following steps: S1, preparing a basic solution; s2, preparing a premix; and S3, grinding and uniformly stirring. According to the method, the dispersible oil suspending agent (OD) is easy to grind, the dispersible oil suspending agent (OD) can be ground to smaller particle size by using the same equipment process in production, the settling velocity of the dispersible oil suspending agent (OD) in the storage process is reduced, the dispersible oil suspending agent (OD) has better physical stability, and meanwhile, the smaller particle size is more easily absorbed by target crops, the pesticide effect is increased, and the dosage per mu is reduced.

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 present invention discloses a kind of fluorescent carbon quantum dots and its preparation method and application in atrazine detection, and belongs to the technical field of pesticide residue detection. The carbon quantum dots in the present invention are obtained by hydrothermal reaction, centrifugation, dialysis, nitrogen blowing and freeze drying with citric acid and o-phenylenediamine as raw materials and a mixed solution of ethanol and water as solvent. The preparation method in the present invention has low equipment requirements, simple operation and low cost. The fluorescent carbon quantum dots prepared by the method in the present invention have the characteristics of good fluorescence stability, good water solubility, good selectivity for atrazine and high sensitivity. The detection method in the present invention shows that the fluorescence enhancement degree of the fluorescent carbon quantum dots is linearly correlated with the atrazine concentration, and the detection limit of the detection method is as low as 20ng / L, and the detection result is fast and accurate. Therefore, the present invention can be used for fast, accurate and sensitive detection of atrazine in actual samples.

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 belongs to the technical field of pesticide weeding, and discloses a saflufenacil-containing weeding composition and application thereof, the weeding composition comprises an active component A, an active component B and an active component C. The active component A is saflufenacil, the active component B is nicosulfuron, and the active component C is atrazine; the mass ratio of the active component A to the active component B to the active component C is 1: (0.25-5): (1-80). According to the weeding composition, the synergistic interaction effect is achieved through multi-component compounding, the weeding activity is remarkably improved, the action mechanisms of the weeding composition are complementary, the weed resistance generation speed is reduced through combination of the three components, the pesticide application frequency is reduced, and the labor cost is reduced.

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 relates to a microbacterium X10 with a broad-spectrum pesticide degradation function and application of the microbacterium X10, the microbacterium X10 is named as a microbacterium X10 strain, the preservation number of the microbacterium X10 strain is GDMCC No: 66970, and the preservation date of the microbacterium X10 strain is September 17, 2025. The strain has an efficient degradation effect on a plurality of typical pesticides such as dinotefuran, carbendazim, atrazine, pendimethalin and lambda-cyhalothrin, and also has a plurality of probiotic functions of secreting indole-3-acetic acid, dissolving inorganic phosphorus, generating siderophores, antagonizing phytopathogens and the like. The strain can effectively relieve stress of pesticides on plants and promote growth of the plants. The strain can be used for repairing pesticide-polluted soil and promoting plant growth, and has a wide application prospect in green agriculture development.

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 application belongs to the technical field of land pesticide residue degradation, and particularly relates to a preparation for reducing pesticide residues and application of cladophora in reducing pesticide residues. Scenedesmus obliquus It is found that the cladophora can effectively degrade four typical pesticides of atrazine, thiamethoxam, cypermethrin and nicosulfuron, has wide applicable temperature (such as 5 DEG C to 30 DEG C), short action time, high safety and low cost.

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 herbicides. The invention provides application of trans-p-methoxy ethyl cinnamate and derivatives thereof as active ingredients of herbicides. The invention also provides a herbicide, wherein the active component of the herbicide is the ethyl trans-p-methoxycinnamate and the derivative thereof. Preferably, the active ingredient of the herbicide is trans-p-methoxy ethyl cinnamate or trans-ethyl cinnamate. Preferably, the herbicide is used for amaranthus retroflexus, purslane, descurainia sophia, orychophragmus violaceus, chenopodium album, digitaria capitata, barnyard grass and chloris virgata. It is found for the first time that trans-p-methoxy ethyl cinnamate and partial derivatives thereof have excellent and broad-spectrum herbicidal activity and can be used for preparing herbicides, especially trans-p-methoxy ethyl cinnamate, the weed control effect of the trans-p-methoxy ethyl cinnamate is better than that of atrazine as a herbicide in the current market, and the toxicity risk of the trans-p-methoxy ethyl cinnamate is lower than that of atrazine.

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”)).

The application provides a modified biochar and a porous formed biochar as well as a preparation method and application thereof.The preparation method of the porous formed biochar has the advantages that phenolic resin is insoluble in water but soluble in alcohol solvent, can be compatible with various organic and inorganic fillers, and can provide the required mechanical strength for the formed biochar after crosslinking; compared with other resin systems, the phenolic resin system has the characteristics of low smoke and low toxicity; the selected material is self-produced zinc chloride modified biochar, and the defect of low removal effect of general biochar on atrazine and other organochlorine pesticides is overcome; the modified biochar is formed in the curing process of the adhesive, has a fixed shape, avoids the general biochar particles from entering the environment and causing secondary pollution, and finally obtains the porous high-efficiency formed biochar; the porous formed biochar prepared by the application has the ability of removing atrazine and other organochlorine pesticides, has a regular shape, and has uniform properties.