103 results about "Mesotrione" patented technology

The invention belongs to the field of agricultural biotechnology and environmental microbiological engineering, and discloses mesotrione nitroreductase Mstnr as well as a coding gene and application thereof. The nucleotide sequence of the gene is SEQ ID NO.1, the full length is 678bp, 225 amino acids are encoded, and the amino acid sequence of the gene is SEQ ID NO.2. The highest homology of the Mtnr and reported nitroreductase is only 49.2%, so that the Mtnr is a new nitroreductase gene. The nitroreductase Mtnr provided by the invention can catalyze nitro reduction of mesotrione and convert mesotrione into a product 2-amino-4-methylsulfonylbenzoic acid (AMBA) without herbicidal activity, which indicates that the Mtnr gene has a huge application prospect in biodegradation detoxification and repair of mesotrione.

The invention belongs to the field of agricultural biotechnology and environmental microbiological engineering, and discloses mesotrione nitroreductase Mtnr as well as a coding gene and application thereof. The nucleotide sequence of the gene is SEQ ID NO.1, the full length is 756bp, 251 amino acids are encoded, and the amino acid sequence is SEQ ID NO.2. The maximum homology of the Mstnr and reported nitroreductase is only 50.6%, so that the Mstnr is a new nitroreductase gene. The nitroreductase Mstnr provided by the invention can catalyze nitro reduction of mesotrione, and the mesotrione is converted into a product 2-amino-4-methylsulfonyl benzoic acid (AMBA) without herbicidal activity, so that the Mstnr gene has a huge application prospect in biodegradation detoxification and repair of the mesotrione.

The invention belongs to the field of agricultural biotechnology and environmental microbiological engineering, and discloses a herbicide mesotrione degradation detoxification enzyme protein, and a coding gene and application thereof. The nucleotide sequence of the gene is SEQ ID NO.1, the full length of the gene is 738bp, 245 amino acids are encoded, and the amino acid sequence of the gene is SEQ ID NO.2. The maximum homology of the Mdmnr and reported nitroreductase is only 48%, so that the Mdmnr is a new nitroreductase gene. The nitroreductase Mdmnr provided by the invention can catalyze nitro reduction of mesotrione, and the mesotrione is converted into a product AMBA without herbicidal activity, which indicates that the Mdmnr gene has huge application prospects in mesotrione-resistant transgenic engineering and biodegradation detoxification and repair of mesotrione residual pollution.

The invention belongs to the field of environmental microorganisms and agriculture, and discloses mesotrione nitroreductase as well as a coding gene and application thereof. The amino acid sequence of the mesotrione nitroreductase MnrA is as shown in SEQ ID NO. 2; the nucleotide sequence of the gene for coding mesotrione nitroreductase MnrA is as shown in SEQ ID NO. 1; the invention also provides application of the mesotrione nitroreductase and the gene as well as an expression box, a recombinant vector and a genetically engineered bacterium capable of degrading mesotrione. The homology of the nitroreductase MnrA provided by the invention and reported nitroreductase is lower than 20%, and the nitroreductase MnrA is a novel nitroreductase. The nitroreductase MnrA disclosed by the invention can catalyze nitro reduction of mesotrione, and the mesotrione is converted into a product AMBA without herbicidal activity, so that the nitroreductase MnrA and the coding gene thereof have huge application prospects in mesotrione-resistant transgenic engineering and biodegradation detoxification and repair of mesotrione residual pollution.

The present disclosure relates to herbicidal combinations, compositions and methods for controlling weeds comprising the carbamate herbicide asulam and an additional herbicide selected from the group comprising cyclohexanedione oxime herbicides, pyrimidinylsulfonyhirea herbicides, triazolopyrimidine herbicides, imidazolinone herbicides, alkylazine herbicides, triketone herbicides, N-phenylimide herbicides or chloroacetamide herbicides. Specifically, the additional herbicide may be one of clethodim, chlorimuron, diclosulam, imazamox, imazethapyr, indaziflam, mesotrione, saflufenacil, tiafenacil or S-metolachlor.

The present invention provides a continuous drying device for mesotrione, which relates to the field of drying devices. The continuous drying device for mesotrione includes a circulating blower, and also includes a cyclone separation component, a multi-layer filtration component, a heating component and a continuous drying component. The circulating blower conveys wind power to the heating component, the heating component sends hot air into the continuous drying component, the continuous drying component sends materials into the cyclone separation component, and then leads to the multi-layer filtration component until it is connected to the circulating blower again. In this continuous drying device for mesotrione, by setting the multi-layer filtration component, the effect of separating mesotrione in the dried air can be achieved, avoiding waste of raw materials and also preventing the dried air from polluting the environment. By setting the continuous drying component, it can be sucked away by the circulating air, and then separated by the cyclone separator, so as to achieve the effect of comprehensively drying mesotrione until the drying requirements are met.

The present disclosure primarily relates to certain agrochemically active herbicidal combinations comprising (A) diflufenican and (B) mesotrione. The disclosure further relates to the use of these combinations for controlling weeds, in particular for controlling resistant weeds, and to corresponding methods.

The present disclosure primarily relates to certain agrochemically active herbicidal combinations comprising (A) rimisoxafen, and (B) diflufenican, or (A) rimisoxafen, (B) diflufenican and (C) mesotrione. The disclosure further relates to the use of these combinations for controlling weeds, in particular for controlling resistant weeds, and to corresponding methods.

The present invention relates to the field of herbicides, and discloses a method for preparing mesotrione compounds. The method comprises: 1) subjecting a compound having the structure shown in formula (1) to an acylation reaction with a chlorinating agent to obtain an acylation reaction product; 2) subjecting the acylation reaction product obtained in step 1) to an esterification reaction with a compound having the structure shown in formula (2) to obtain an esterification reaction product; 3) contacting the esterification reaction product obtained in step 2) with a rearrangement reagent having the structure shown in formula (4) to obtain a compound having the structure shown in formula (3). This method does not use cyanide-based rearrangement reagents, and has simple operation and low cost, and is very suitable for industrial production.

The utility model relates to the technical field of blowdown devices, in particular to a blowdown device for mesotrione synthesis. According to the technical scheme, the sewage discharging device comprises a sewage discharging pipe, a plurality of spiral pieces are welded to one side of the interior of the sewage discharging pipe in an annular array at equal intervals, a plurality of annular blocking pieces are welded to the side, away from the spiral pieces, of the interior of the sewage discharging pipe at equal intervals, and a chemical adding pipe is fixedly connected to the middle of the upper surface of the sewage discharging pipe. According to the sewage treatment device, a treatment agent is added in the process that sewage flows in the sewage discharge pipe, so that the reaction time of subsequent sewage treatment with the agent is saved, and the sewage treatment efficiency is improved.

A crystalline hydrate of topramezone sodium salt is provided. A preparation method for the crystalline hydrate of topramezone sodium salt and herbicidal compositions including the crystalline hydrate of topramezone sodium salt are also provided.

The present invention discloses a preparation method of mesotrione, and the method steps are as follows: S1: Under the protection of an inert gas, 3-chloro-2-methylbenzenemethanethiol, phosphorus oxychloride, a composite catalyst and an organic solvent are mixed and reacted. After the reaction is completed, 2-chloro-3-methyl-4-methylthiophenylaldehyde is obtained through separation and vacuum distillation; 2-chloro-3-methyl-4-methylthiophenylaldehyde is mixed with sodium tungstate dihydrate and methanol, and hydrogen peroxide is added for reaction. After the reaction, 2-chloro-3-methyl-4-methylsulfonylbenzoic acid is obtained through filtration; S2: Preparation of 2-chloro-3-(2,2,2-trifluoroethoxy)methyl-4-methylsulfonylbenzoic acid; S3: 2-chloro-3-(2,2,2-trifluoroethoxy)methyl-4-methylsulfonylbenzoic acid is mixed and reacted with thionyl chloride and dichloroethane, and the reaction product is further reacted with 1,3-cyclohexanedione, triethylamine and samarium trichloride to prepare mesotrione. The present invention simplifies the preparation route of mesotrione, the preparation process is more green and safe, and the yield of mesotrione is higher.

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 dichloro clomazone or dichloro clomazone; the active ingredient B is isoxaflutole, toprazole fluridone or mesotrione; the active ingredient C is metribuzin. The composition can be used for effectively preventing and removing various weeds such as gramineous weeds and broadleaf weeds, and has the characteristics of expanding the herbicide controlling spectrum, reducing the application amount, generating a synergistic effect, solving resistant weeds and the like.

The present invention relates to a method for post-emergent weed control, which comprises applying an effective amount of a composition comprising herbicide A (component A), mesotrione (component B) and optionally at least one herbicide C (component C) to emerged weeds, or an area, where weeds are growing.

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.

This invention relates to the fields of environmental pollution remediation and biocatalysis, and provides a method for preparing a self-supplied H2O2 cathode material via an electroenzyme cascade and its application. The cathode material is an ionic liquid-modified CPO-IL. EMB The bio-hybrid material formed by immobilizing molybdenum disulfide-modified MoS2@Co-CNNT composite material, namely CPO-IL EMB / MoS2@Co-CNNT. An electroenzyme cascade degradation system was constructed using this biohybrid material as the cathode. By controlling the electrode potential, controllable H2O2 generation was achieved while protecting the Fe(III) in the iron porphyrin ring of CPO from reduction, thus maintaining the intrinsic oxidative activity of the enzyme. The in-situ generated H2O2 activates CPO-IL. EMB It efficiently catalyzes the oxidative degradation of mesotrione. This invention requires no external CPO-IL. EMB It is green and environmentally friendly, with high degradation efficiency, and has promising applications in agricultural wastewater treatment and environmental remediation.

Provided are a herbicide composition and a weed controlling method, which exhibit an excellent controlling effect against weeds.　Provided is a herbicide composition comprising: epyrifenacil; and at least one compound selected from the group consisting of imazamox and salts thereof, R-imazamox and salts thereof, phenmedipham, pyridafol, aclonifen, cinmethylin, prosulfocarb, bixlozone, mesotrione, napropamide-M, and beflubutamid-M.

The application belongs to the field of agricultural biotechnology and environmental microbial engineering, and discloses a mesotrione nitroreductase Mtnr, a coding gene thereof and application. The nucleotide sequence is SEQ ID NO. 1, the full length is 756 bp, and 251 amino acids are encoded, and the amino acid sequence is SEQ ID NO. 2. The highest homology of Mtnr with a reported nitroreductase is only 50.6%, and therefore it is a new nitroreductase gene. The nitroreductase Mtnr provided by the application can catalyze the nitroreduction of mesotrione, and convert mesotrione into a product 2-amino-4-methylsulfonylbenzoic acid (AMBA) without herbicidal activity, indicating that the Mtnr gene has great application prospect in mesotrione biodegradation detoxification and remediation.

The invention discloses a paddy field pesticide and a preparation process thereof, and relates to the technical field of paddy field pesticides, the paddy field pesticide comprises the following active components: mesotrione, pyribenzoxim and 2-methyl-4-chloro-phenoxyacetic acid sodium, the mass ratio of mesotrione to pyribenzoxim to 2-methyl-4-chloro-phenoxyacetic acid sodium is (1-10): (1-5): (10-50), and the mass ratio of mesotrione to pyribenzoxim to 2-methyl-4-chloro-phenoxyacetic acid sodium is (1-10): (1-5): (10-50). The mass ratio of the mesotrione to the pyribenzoxim to the 2-methyl-4-chloro-phenoxyacetic acid sodium is (2-5): (1-3): (20-40), and the mass ratio of the mesotrione to the pyribenzoxim to the 2-methyl-4-chloro-phenoxyacetic acid sodium is 3: 1: 30. The paddy field weeding composition which has the advantages of synergistic interaction, broad spectrum, high efficiency, resistance delay, crop safety, convenience in use and the like is successfully developed, the prominent problems in current paddy field weed control are effectively solved, and the paddy field weeding composition has extremely high application value and market prospect.

The invention relates to the technical field of pesticides, in particular to mesotrione soluble liquid as well as a preparation method and application thereof. The mesotrione suspending agent comprises the following components in percentage by mass: 5-40% of mesotrione technical, 5-30% of a solvent, 3-20% of a surfactant, 1-10% of an antifreeze agent, 0.3-3% of a pH regulator and the balance of deionized water. According to the invention, the solubility of mesotrione is improved by selecting proper solvent, antifreezing agent and surfactant and reasonable proportion, so that the soluble liquid with high stability and high drug effect is prepared. The mesotrione soluble liquid can be applied to prevention and removal of weeds in uncultivated land and cultivated land, and does not cause phytotoxicity to crops. The herbicide is an agricultural herbicide which is good in weeding effect, simple in production process and free of environmental pollution.

The invention discloses an application of mesotrione in increasing crop yield. The mesotrione has the following application: increasing rice yield; the effective ear number of rice is increased; the grain number per ear of the rice is increased; the thousand seed weight of the rice is improved; the yield of wheat is improved; the corn yield is improved; the yield of potatoes is improved. The foliage fertilizer acts on leaf surfaces of crops (rice, wheat, corn and potatoes) in a spraying manner, so that the yield of the crops is increased; mesotrione is low in toxicity, easy to decompose, small in influence on human bodies and high in safety; the composition is applied to growth of crops, the use concentration is low, the use mode is different from that of a herbicide used for soil and weeds, the application of the composition is expanded, and a new technical scheme for increasing the crop yield is developed.

The application relates to a preparation method of a mesotrione intermediate. S1, 3-chloro-2-methyl aniline, hydrochloric acid and pure water are placed in a reaction kettle, stirring, cooling, dropwise addition of a NaNO2 solution, after dropwise addition is completed, temperature control is carried out, CH3SNa aqueous solution is added, after dropwise addition is completed, slow temperature rising is carried out, and reaction is continuously carried out for 8 hours; extraction, water washing and distillation are sequentially carried out, and 1-chloro-2-methyl benzyl sulfide is obtained; S2, under the atmosphere of nitrogen, formylation reagent is added into a reaction kettle under the condition of 0-10 DEG C, a catalyst is dropwise added and stirring is carried out, 1-chloro-2-methyl benzyl sulfide is dropwise added, temperature rising is carried out, and 2-chloro-3-methyl-4-methylthio benzaldehyde is obtained through post-treatment; S3, under the atmosphere of nitrogen, methanol, 2-chloro-3-methyl-4-methylthio benzaldehyde and sodium tungstate dihydrate are added into a reaction kettle, hydrogen peroxide is dropwise added, the reaction temperature is controlled, and reaction is carried out, and the mesotrione intermediate is obtained through post-treatment.

The present invention is directed to an aqueous composition comprising a mixture of epyrifenacil, mesotrione and pyroxasulfone. The present invention is further directed to methods of controlling weeds by applying the compositions of the present invention to a weed or an area in need of weed control.

The invention belongs to the technical field of herbicides, and particularly relates to a preparation method of a sugarcane field herbicide containing mesotrione, triclopyr and halosulfuron-methyl, and the preparation method comprises the following steps: S1, preparing mesotrione salt; s2, preparing triclopyr acetate; s3, preparation of a dosage form: adding auxiliary components which are allowed to be added in pesticide science into the mesotrione salt, the triclopyr and the halosulfuron-methyl active compound to prepare the pesticide preparation. According to the invention, the stability problem of compounding of three effective components, namely mesotrione, triclopyr and halosulfuron-methyl, is successfully solved, the compound herbicide with stable performance is prepared, and the market blank is filled; the production process is simplified, the production and packaging material cost is reduced, the production of packaging waste is reduced, and the environmental protection requirement is met; when farmers use the pesticide, independent proportioning is not needed, the operation is more convenient, and the pesticide application efficiency is improved; the product accords with national supervision policies on pesticide products, and can provide support for standard operation of production enterprises and scientific pesticide application of farmers.

The invention provides a corn field multi-element compound water dispersible granule and a preparation method thereof, the corn field multi-element compound water dispersible granule is a water dispersible granule prepared by compounding aminopyridine salt, mesotrione and nicosulfuron salt, the control effect is good, the physical and chemical properties are stable, the corn field multi-element compound water dispersible granule is not easy to decompose and deteriorate to generate phytotoxicity, and the suspension rate reaches more than 96%; in the use process, the water dispersible granule only needs to be dispersed once, the use process is simple, and the water dispersible granule is a granular solid, is good in flowability, does not stick to the wall after being poured, and does not remain in a packaging container to form secondary pollution.

The application relates to a device for degrading a methasulfocarb pesticide by using a double-chamber bioelectrochemical system and a degradation method thereof, and relates to the field of degradation of methasulfocarb pesticide wastewater.The device comprises an anode system and a cathode system, and the methasulfocarb pollutants are located in the cathode system.The method is to use a bioelectrochemical reduction technology in the cathode system, to strengthen the methasulfocarb pesticide wastewater treatment under the action of a constant voltage through the synergistic effect of electrophilic microorganisms of a biological cathode and an electrode.The application has the characteristics of simple operation, low cost, low energy consumption and high degradation efficiency.The application is suitable for repairing soil or water pollution containing the methasulfocarb pesticide.

The invention relates to the field of herbicides, and particularly discloses a nicosulfuron-mesotrione oil suspending agent and a preparation method thereof. The nicosulfuron-mesotrione oil suspending agent is prepared from the following raw materials: 40 to 50 parts of atrazine, 5 to 12 parts of nicosulfuron, 10 to 16 parts of mesotrione, 15 to 22 parts of an emulsifying agent, 1 to 3 parts of starch coated fat-soluble resin, 1 to 3 parts of nano dispersed fibers, 1 to 2 parts of a dispersing agent, 1 to 3 parts of a thickening agent, 0.5 to 1 part of a de-foaming agent and 50 to 60 parts of an oil solvent. The preparation method comprises the following steps: uniformly mixing and emulsifying the oil solvent and the emulsifier, then adding the atrazine, the nicosulfuron and the mesotrione, uniformly mixing and stirring, and sanding to obtain a mixture; adding starch-coated fat-soluble resin, nano dispersed fibers, a dispersing agent, a thickening agent and a defoaming agent into the mixture, uniformly mixing and stirring, and performing defoaming treatment to obtain a finished product. Meanwhile, the weeding composition has the advantages of high suspension rate, high stability, good water resistance and long weed prevention and control time.

The application discloses a rape chemical growth retardant, a preparation method and application thereof, and belongs to the field of agricultural technology. A kind of rape chemical growth retardant is prepared by mixing difenoxure solution and mesotrione according to the proportion of 7.5mL:15g.The rape chemical growth retardant can improve the dehydration efficiency of rape after acting on rape, and can also improve the offspring yield of rape seed, increase seed vigor, improve germination potential and germination rate and other factors, providing a new method for improving rape mechanization seed production, breeding efficiency and seed quality.The active ingredients of the product are two low-toxicity desiccants, which have low toxicity residue, weak toxicity, low cost, good effect and other characteristics.

The present invention discloses a dosage-reducing and synergistic herbicide composition and use thereof in controlling weeds in corn fields, belonging to the technical field of agricultural chemistry. The herbicide composition comprises the following raw materials, measured in percentage by weight: 18-20 wt% of mesotrione, 2-8 wt% of seaweed extract, 1-3 wt% of sulfamethoxam, 5-7 wt% of a filler, 5-15 wt% of a surfactant, and the balance being a solvent. Through the synergistic effect between the raw material components defined in the present invention, a small amount of the herbicide composition can be applied to effectively control weeds in corn fields and reduce pollution to the environment, and further increase corn yield, thus achieving the purpose of dosage-reduction and synergistic effect. This further proves that the herbicide composition of the present invention has excellent prospects for use in weed control.

The invention relates to the field of pesticides and herbicides, in particular to a composition containing tribenuron-methyl, fluroxypyr and carfentrazone-ethyl as well as a preparation method and application of the composition. The composition containing tribenuron-methyl, fluroxypyr and carfentrazone-ethyl is prepared from the following preparation raw materials in parts by mass: 23 to 26 parts of an active component, 4 to 6 parts of a composite surfactant, 1 to 3 parts of an anti-freezing agent, 1 to 2 parts of a bio-based thickening agent, 4 to 5 parts of a synergist, 1 to 5 parts of a dispersing agent, 10 to 15 parts of an emulsifying agent and 50 to 55 parts of methyl oleate. The pesticide composition disclosed by the invention has the advantages of low toxicity, environment friendliness, cost saving and the like while improving the weeding effect, and is an efficient, safe and environment-friendly pesticide product.