36 results about "Quinclorac" patented technology

The present invention relates to a method of controlling weeds in susceptible turfgrass without causing significant injury to the turfgrass, comprising applying to the turfgrass a herbicidally effective amount of quinclorac, or a salt thereof and a safening amount of metcamifen.

This invention provides a ternary herbicidal composition containing an ALS enzyme inhibitor and its application. The herbicide composition comprises three active ingredients: active ingredient A is pyrimisulfuron and its salt; active ingredient B is quinclorac acid and its salt; and active ingredient C is selected from one of clopyralid, triclopyralid, clopyralidic acid, fluorochloropyralidic acid and its salts and esters. The weight ratio of each active ingredient is 1:(1-50):(1-50), and the total weight percentage of the active ingredients in the herbicidal composition is 1-80%. This ternary herbicidal composition can be used to control various grass weeds, broadleaf weeds, and sedge weeds in warm-season lawns. It has a significant synergistic effect compared to single-component herbicides, improving control efficacy, especially against pyrimisulfuron-methyl weeds. Furthermore, it also has good control efficacy against older weeds, with a long-lasting effect and high safety.

The invention belongs to the technical field of herbicides, and particularly relates to a sugarcane field herbicide composition. The invention relates to a herbicide composition for a sugarcane field. The herbicide composition for the sugarcane field is formed by binary compounding of propyrisulfuron, indoxacarb, quinolone or pyroxasulfone. When the propyrisulfuron is compounded with the indolinone-ethyl, the quinolone or the pyroxasulfone according to a certain mass ratio, the co-toxicity coefficient of the compounded composition on weeds is greater than 120, a synergistic interaction effect is shown, and the control effect on the weeds in the sugarcane field can be improved. In the compound composition, the weeding action mechanisms of the propyrisulfuron are different from the weeding action mechanisms of the indolinone-ethyl, the quinolone or the pyroxasulfone, so that accumulation and development of weed drug resistance are effectively delayed, and the weed drug resistance management cost is further reduced. Therefore, the compound composition provided by the invention can provide support for developing medicaments for preventing and removing weeds in the sugarcane field.

The present application relates to a kind of herbicidal composition of pyrimisulfan and its preparation method and application scheme, including active ingredient (A) pyrimisulfan or its salt, (B) quinclorac or its salt and (C) carfentrazone-ethyl or its salt, the weight ratio of each active ingredient is (1-24):48:(1-24), the total weight of active ingredient is 1% to 70% of the total weight percentage of herbicidal composition.Excellent activity is shown to a variety of grass weeds, broadleaf weeds and sedge weeds, such as barnyard grass, crabgrass, knotweed, pigweed, shepherd's purse, and cyperus rotundus, in warm-season turf, while the synergistic effect is significant, not only improves the effect of weeding, but also expands the control spectrum, while reducing the number of applications, reducing environmental pressure, reducing the use of pesticides and costs, and delaying the development of resistance.

The invention belongs to the technical field of herbicides, and particularly relates to a herbicide for preventing and controlling field weeds, the active components of the herbicide are formed by binary compounding of cyclopyridazinofop-p-methyl and pyrazol-quinclorac-ethyl, or ternary compounding of cyclopyridazinofop-p-methyl, pyrazol-quinclorac-ethyl and tefuryltrione. Compared with the prior art, the weeding composition has the advantages that the cyclopyridazinate is compounded with the pyrazalofop-p-ethyl, or the cyclopyridazinate is compounded with the pyrazalofop-p-ethyl and the tefuryltrione, so that the control effect on gramineous weeds such as barnyard grass in the field can be improved, the spraying dosage of a herbicide can be reduced, the control cost can be reduced, and meanwhile, the generation of crop phytotoxicity can be reduced. Besides, the herbicidal action mechanism of the cyclamefone in the herbicide is different from that of other components, so that weeds can be prevented and removed from different action sites when the herbicide is used, the development and accumulation of drug resistance of the weeds are slowed down, and the updating period of the herbicide can be prolonged. In conclusion, the invention can provide support for development of novel efficient herbicides.

The invention discloses a bioremediation agent as well as a preparation method and application thereof. The bioremediation agent comprises hydrothermal carbon and pichia pastoris loaded on the hydrothermal carbon. The bioremediation agent disclosed by the invention can be used for treating pollutants with relatively high accumulation amount, for example, the degradation of quinclorac by microorganisms is remarkably improved.

The invention discloses application of nano copper oxide, a degradation agent and a method for reducing quinclorac in soil and increasing crop yield. The degradation agent comprises nano copper oxide, bacteroides and menococcus virens. The method comprises the following steps: (1) adding bacteroides and pseudomonas virens into acidic wet soil polluted by quinclorac; (2) adding nano copper oxide into the soil; and (3) planting crops. According to the invention, the nano copper oxide is added into the soil, and cooperates with the synergistic use of bacteroides and chloromeniscus, so that efficient and sustainable degradation of quinclorac is realized, the crop yield is increased, and the dual benefits of pesticide degradation and crop yield increase are realized.

The invention relates to the technical field of herbicide resistance, in particular to a method for screening herbicide-resistant rice by using molecular markers, which comprises the following steps: S1, screening herbicide-resistant mutants, and extracting genome DNA of rice seedling leaves by using a CTAB (Cetyltrimethyl Ammonium Bromide) method; s2, specific primers are designed for ALS gene mutation sites, and flanking sequences of the mutation sites are covered. And S3, amplifying the target fragment by using PrimeSTAR Max enzyme, and verifying the product through agarose gel electrophoresis. And S4, carrying out DNA sequencing on the PCR product, and comparing ALS gene sequences to detect SNP locus mutation. And S5, according to the existing combination of the mutation sites Gln547Leu, Glu549Lys and Glu604Asp, judging the resistance of the plant to bispyribac-sodium and quinclorac. And S6, spraying mixed herbicides bispyribac-sodium and quinclorac to the mutant, and confirming the resistance through the survival rate and phenotype. The method can be directly adapted to a rice direct seeding cultivation system for non-transgenic resistant rice varieties, the weed competition pressure is remarkably reduced through directional weeding in the seedling stage, and an innovative solution is provided for solving the problem of weed damage in the direct seeding rice field.

This invention relates to the field of biotechnology, and more particularly to the tobacco NtTIRd gene and its applications. Experiments have shown that NtTIRd gene loss-of-function mutants exhibit increased resistance to quinclorac acid phytotoxicity, thereby eliminating or mitigating losses to tobacco production caused by phytotoxicity. Therefore, this invention is the first to reveal that the NtTIRd gene can be used to regulate plant resistance to quinclorac acid phytotoxicity, providing a new approach for obtaining superior tobacco plants through breeding.

The invention relates to a preparation method and a preparation system of quinclorac, and belongs to the technical field of herbicide preparation, AuPd alloy nanoparticles are loaded on a lanthanum-doped CsPMo composite carrier, a'Lewis acid site + electron-rich metal active center 'synergistic system is constructed, lanthanum ions are embedded into Keggin structural gaps of CsPMo through ionic bonds or coordinate bonds, and the quinclorac is prepared. The specific surface area of the composite carrier is remarkably increased, the number of Lewis acid sites is increased, electron metal-composite carrier interaction between an AuPd alloy and the composite carrier induces electrons to be transferred from the carrier to the alloy, an electron-rich active center is formed, an oxygen activation energy barrier is reduced, oxygen ion active oxygen species are efficiently generated, and the catalytic activity of the AuPd alloy is improved. Meanwhile, hydrogen is accelerated to be dissociated into active hydrogen species, sufficient active species are provided for oxidation reaction and reduction reaction respectively, and efficient promotion of methyl oxidation, nitro reduction and subsequent ring closing reaction of 1-chloro-2-methyl-3-nitrobenzene is ensured.

The present invention discloses a water-dispersible pesticide granule with excellent dispersibility and a preparation method thereof. The water-dispersible pesticide granule with excellent dispersibility comprises abicyclon, oxadiazon, quinclorac, a modified dispersant, a wetting agent, a disintegrant, a binder, and a filler; the modified dispersant has the structure shown in Formula A below. The water-dispersible pesticide granule provided by the present invention utilizes a combination of abicyclon, oxadiazon, and quinclorac as the active pesticide ingredients and a modified dispersant. The granule exhibits excellent stability and significantly enhances dispersibility and suspension rate, thereby improving the pesticide's efficacy. #imgabs0#

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.

The invention provides a high-sensitivity detection method for quinclorac in grains and honey. The high-sensitivity detection method comprises the following steps: S1, extracting; S2, deriving; S3, redissolving and on-machine analysis of GCMSMS (Gas Chromatography Mass Spectrometry) and LCMSMS (Liquid Chromatography Mass Spectrometry). According to the technical scheme, iodoethane is adopted to react with quinclorac under the alkaline condition to generate a new compound 3, 7-dichloro-8-quinoline carboxylic acid ethyl ester, the derivation reaction speed is high, and the reaction can be completed within 60 minutes; and the used derivatization reagent is safe to use and low in cost. According to the method, the derivative 3, 7-dichloro-8-quinoline carboxylic acid ethyl ester of quinclorac is quantitatively detected through GCMSMS, the sensitivity is high, the quantification limit is far lower than that in an existing literature method, and the harsh requirement of the market for quinclorac detection in food can be met.

The invention discloses a quinolone herbicide ionic liquid as well as a preparation method and application thereof, and belongs to the technical field of agricultural herbicide preparations. The quinolone herbicide ionic liquid has a molecular structure as shown in a formula (I), in the formula (I), R1, R2 and R3 are respectively and independently selected from-CH3 and-H, and R4 is selected from-C6H13,-C10H21 and-C12H25. The ionic liquid is obtained through the reaction of tertiary amine salt or quaternary ammonium salt and the quinolinone, has the characteristics of good water solubility, simple and easy preparation, strong plant leaf surface wetting ability, low plant toxicity, low aquatic toxicity, high bioavailability and good crop safety, and can realize application reduction and synergism of the quinolinone herbicide. Formula (I)

The utility model belongs to the field of chemical production technology discloses a kind of quinclorac technical material continuous adsorption device, including the mixer being equipped with stirring device, the top of mixer is equipped with liquid material inlet and solid material inlet respectively, and the liquid material inlet of mixer is connected to technical solution storage tank by pipeline and first metering pump, and the solid material inlet of mixer is connected to silicon dioxide storage tank by pipeline and second metering pump;The bottom of mixer is equipped with material outlet, and the material outlet of mixer is connected to the feed inlet of screw conveying adsorption device being equipped with heating jacket by pipeline, and the discharge port of screw conveying adsorption device is connected to centrifuge by pipeline, and the solid material outlet of centrifuge is connected to quinclorac product storage tank by pipeline.The utility model realizes quinclorac nanometer technical material continuous, automation adsorption production, significantly improves production efficiency, reduces production cost.

The invention discloses an efficient and safe weeding method for a tropical upland rice field, and belongs to the technical field of agricultural planting. The method comprises the following steps: spraying glufosinate-ammonium to kill germinated weeds 10-15 days before sowing; (after sowing and before emergence of seedlings, spraying butachlor and bensulfuron methyl to form a pre-emergence closed pesticide film; 15-20 days after seedling emergence, spraying a compound preparation of quinclorac and pyrazosulfuron-ethyl in a ratio of 1: 1 and a compound preparation of MCPA and fluroxypyr in a ratio of 1: 1; 30-35 days after seedling emergence, a cyhalofop-butyl / haloxysulfuron-methyl and penoxsulam compound agent is sequentially applied, and brassinolide and monopotassium phosphate are sprayed 3 days after secondary pesticide application; supplementing and preventing in the middle and later tillering periods, and spraying naphthylacetic acid, urea and monopotassium phosphate 3 days after weeding. The water adding amount in each stage is dynamically adjusted according to the soil water content, the method is suitable for the tropical upland rice area with the annual average temperature larger than or equal to 25 DEG C, the annual rainfall larger than or equal to 1500 mm and the humidity larger than or equal to 80%, and through five-stage time sequence cooperation and precise intervention of the conditioning agent, the weed control effect larger than or equal to 95.2% is achieved, and the phytotoxicity grade is 0 grade.

The invention belongs to the technical field of agricultural compositions, and relates to a tobacco bud inhibition composition. The invention discloses a tobacco bud inhibition composition. Core components of the tobacco bud inhibition composition are flumetralin and quinclorac. The flumetralin and the quinclorac are mixed according to the mass ratio of (0.25-12): (0.005-0.09), the flumetralin and the quinclorac have a synergistic effect, and the bud inhibition effect is superior to that of a single agent after the flumetralin and the quinclorac are mixed. Field trials further verify that when flumetralin and quinclorac are mixed, the mass ratio of flumetralin to quinclorac is within the range of (0.25-12): (0.005-0.09), the bud inhibition effect is better than that of a control group, and no phytotoxicity phenomenon is found after pesticide application. According to the tobacco bud inhibition composition provided by the invention, the bud inhibition effect is improved while the pesticide consumption is reduced, and the tobacco bud inhibition composition which is high in safety and good in bud inhibition effect is provided for the market.

The present invention relates to the technical field of herbicides, and provides a herbicide composition, a herbicide and its application. The herbicide composition active ingredients include quizalofop-ethyl and quinclorac; the herbicide formulation includes the herbicide composition and adjuvants, and the adjuvants include dispersants, preservatives, stabilizers, antifreeze agents, thickeners, defoamers, etc. After the present invention compounds quizalofop-ethyl and quinclorac, a synergistic effect is exhibited within a reasonable mass ratio range. Compared with a single component, the herbicide composition can improve the control effect of weeds in orchards (such as peach orchards), does not harm peach seedlings, has a wide weed control spectrum, can reduce the use dosage of a single active ingredient, slows down the development of weed resistance, reduces environmental pollution, and contributes to the development of new herbicides for peach orchards.

The application discloses a pyridine oxazole sulfone compound and a preparation method and application thereof. The structural general formula of the compound is shown in the specification. RX is any one or more of -H, -CH3, -OCH3, -NO2, -Br, -Cl, -F, -CN and the like. The pyridine oxazole sulfone compound provided by the application has excellent herbicidal activity, especially remarkable effect on Gramineae for controlling annual and perennial weeds, and the total weed control effect reaches at least 98.4% and the fresh weight control effect reaches at least 94.1% on the seventh day after treatment. The compound has good control effect on barnyard grass resistant to cyhalofop-butyl and quinclorac, small residue on late crops and safety to non-target bees. The compound has small dosage, low cost and short residue period, reduces potential threats of pesticides to the environment, and has simple and economical synthesis method, so that the compound can be used as a lead compound to provide a new reference for development of new herbicides with high efficiency and low toxicity.

The invention relates to the technical field of pesticides, in particular to a pesticide composition for weeding and application thereof. The invention provides a pesticide composition. The pesticide composition comprises a component a, a component b and a component c, wherein the component a is quinclorac; the component b is 2, 4-D sodium butyrate; and the component c is atrazine or terbuthylazine. The compound herbicide provided by the invention combines quinclorac, 2, 4-D sodium butyrate and atrazine (or terbuthylazine), and the inventor finds that herbicides with different action mechanisms and herbicide controlling spectrums have a synergistic effect after combined action through a large number of experiments, the herbicide controlling spectrum is expanded, and weeds in sorghum fields can be effectively prevented and controlled. And a new medicament variety and a new selection approach are added for weed prevention and control in the sorghum field.

The invention belongs to the field of synthetic biology technology research and gene tobacco herbicide resistance improvement engineering, and particularly relates to a one-pot method single-round multi-fragment vector assembly method and application thereof in tobacco quinclorac resistance improvement. The invention also provides an auxin response factor NtIAA4-R68Q mutant, an overexpression vector of a tobacco auxin receptor protein NtIAA4-R68Q encoding gene is constructed by adopting a one-pot method single-round multi-fragment vector assembly technology, and is stably transformed into a tobacco genome, so that a tobacco material with improved herbicide resistance is obtained, and the mutant can be applied to the field of herbicide resistance improvement. The method is of great significance to tobacco herbicide resistance improvement, and can be widely applied to vector construction in biotechnology and bioengineering research.

The application discloses a synthesis method and a synthesis processing device of quinclorac, belongs to the technical field of pesticide synthesis, and adopts covalent combination of carboxylated cobalt phthalocyanine and aminated nickel-based nano array composite foam carbon to realize stable bonding of the cobalt phthalocyanine and the carrier, avoid agglomeration of the cobalt phthalocyanine as a catalytic center, and grow a nickel-based array on the surface of the aminated nickel-based nano array composite foam carbon as the carrier, so that interface electron transfer between the nickel-based array and the cobalt phthalocyanine can be formed, Co 2+ is converted to Co 3+ , and catalytic activity is improved. The aminated nickel-based nano array composite foam carbon in the application grows out of the vertical nickel-based nano array through hydrothermal growth, has a larger specific surface area than plane foam nickel and a non-porous carrier, provides active sites for loading of the carboxylated cobalt phthalocyanine, has high porosity, and through holes can form a gas-liquid-solid three-phase interface, so that oxygen and a substrate can quickly diffuse to the active sites, and mass transfer efficiency is improved.

The present invention belongs to the field of pesticides, and specifically relates to a ternary herbicidal composition and the use thereof. The ternary herbicidal composition comprises a herbicidally effective amount of active ingredient A, active ingredient B and active ingredient C, wherein the active ingredient A is ethoxysulfuron; the active ingredient B is quinclorac; and the active ingredient C is atrazine. The composition can effectively control and eliminate various weeds such as Gramineae weeds, and has the characteristics of an expanded herbicidal spectrum, a reduced application amount, the capability to produce a synergistic effect and address resistant weeds, etc.

The utility model discloses a quinclorac oxadiazon processing and feeding device which comprises a material injection barrel, a material injection groove is formed in the material injection barrel, a rotating ring is rotationally installed at the top end of the material injection barrel, a containing groove is formed in the rotating ring, and the containing groove and the material injection groove are arranged in a staggered mode at the initial position. A fixing ring is fixedly installed at the top end of the material injection barrel, and a closed semi-ring is fixedly connected to the top end of the fixing ring. According to the feeding device, the feeding pipe is communicated with the reaction kettle, raw materials needing to be fed are placed in the placing groove, then the crank is rotated, the crank drives the rotating column to rotate, the rotating column drives the whole rotating ring to rotate, and when the placing groove rotates to the position of the feeding groove along with the rotating ring, the raw materials are fed. Raw materials in the placing groove can enter the material injection pipe through the material injection groove, and the raw materials enter the reaction kettle through the material injection pipe, so that closed feeding is realized, and the influence of waste gas leakage or heat loss in the reaction kettle on the reaction process is prevented.

The application discloses an anit-quinclorac nanobody and application thereof. The amino acid sequence of the nanobody NbFD4 is shown as SEQ ID No. 1. The nanobody NbFD4 still maintains more than 75% activity under the treatment of 30% organic solvent, pH=3.4-9.4 and 45 DEG C, has excellent thermal stability, and has higher resistance to denaturant (acid-base environment, organic solvent). The linear detection range of a detection quinclorac method established by using the nanobody is 3.40-47.38 ng / mL, the LOD value is 1.57 ng / mL, and there is no obvious cross (CR<1.5%) with other structural and functional analogues. The method has the characteristics of high sensitivity, strong specificity and simple operation. Therefore, the nanobody NbFD4 can be used for rapid and effective detection of quinclorac in environment and food samples, and has wide application prospect in detection of quinclorac.

The application provides a high-sensitivity detection method for quinclorac in grains and honey, comprising S1 extraction, S2 derivatization, S3 redissolution and GCMSMS and LCMSMS on-machine analysis. Through the technical scheme of the application, the application adopts iodine ethane to react with quinclorac under alkaline conditions to generate a new compound 3,7-dichloro-8-quinoline carboxylic acid ethyl ester; the derivatization reaction speed is fast, and the reaction can be completed in 60 minutes; the used derivatization reagent is safe and low in cost. The application quantitatively detects the derivatization product 3,7-dichloro-8-quinoline carboxylic acid ethyl ester of quinclorac by GCMSMS, is high in sensitivity, far lower in quantitative limit than the quantitative limit in the prior art method, and can meet the stringent requirements of the market on the detection of quinclorac in food.

The application discloses a kind of herbicide composition, the active ingredient of the composition includes mesosulfuron-methyl and quinclorac, the mass ratio of mesosulfuron-methyl and quinclorac is (0.15-9.57):1.Mesosulfuron-methyl and quinclorac of the present application both show the effect of addition or synergism, are very safe in warm-season turf St. Augustine grass lawn, and the common action of both makes the herbicide have good effect on the removal of gramineae weeds in warm-season turf, and environmental pollution is less, can be widely applied.

The application discloses a method for detecting the content of quinclorac in grain, and belongs to the technical field of food safety detection. The detection method comprises the following steps: (1) crushing a sample to be detected, adding anhydrous ethanol to perform ultrasonic extraction, and centrifuging to obtain an extraction liquid; (2) concentrating the extraction liquid to less than 1 mL; (3) adding a purifying agent to the concentrated liquid, vortexing, and centrifuging to obtain a purified extraction liquid; (4) detecting the purified extraction liquid by adopting an Rxi-5Sil MS or VF-1701ms capillary column in combination with GC-NCI-MS selected ion mode, and quantitatively calculating the content of quinclorac by adopting an internal standard method. The method is simple in operation, green and environment-friendly, accurate in qualitative and quantitative determination, and high in sensitivity, can be used for determining quinclorac in grain, and meets the detection requirements.

The utility model discloses a chlorination reaction device for preparing quinclorac, which comprises a reaction kettle main body, a heat exchange pipe is arranged in the reaction kettle main body, two groups of stirring blades are fixedly connected outside a stirring shaft, the bottom of the stirring shaft is fixedly connected to one end of a rotating joint, the other end of the rotating joint is fixedly connected with an air inlet pipe, and the other end of the rotating joint is fixedly connected with an air outlet pipe. A first chlorine supply channel and a second chlorine supply channel which are communicated with each other are formed in the stirring shaft and the stirring blade, and an air outlet communicated with the second chlorine supply channel is formed in the lower side of the stirring blade. Materials in the reaction kettle main body are uniformly heated by arranging the heat exchange pipe, the risk of local overheating is avoided, chlorine is discharged into the reaction kettle main body from the gas outlet by arranging the first chlorine supply channel and the second chlorine supply channel, and the chlorine is uniformly distributed in the materials along with rotation of the stirring blades driven by the stirring shaft; and the chlorination reaction rate is greatly accelerated.

The invention discloses an administration method for degrading quinclorac residues in a tobacco and rice rotation field, and belongs to the technical field of soil remediation. The administration method specifically comprises the following steps: (1) punching holes in tobacco ridges, and transplanting tobacco seedlings into the holes for field planting; (2) on the day or the next day of tobacco seedling transplanting, potassium persulfate is adopted as root fixing water for root irrigation, and quinclorac residues in holes and surrounding soil are subjected to oxidative degradation through in-situ chemical oxidation. According to the method, a traditional prevention and treatment mode is changed, a herbicide phytotoxicity prevention and treatment method is provided and is a tobacco seedling transplanting in-hole pesticide administration method, potassium persulfate is adopted, herbicide quinclorac residues in soil are degraded through in-situ chemical oxidation, a clean soil environment without organic pollutants is formed, the herbicide quinclorac residues are purified, and the herbicide phytotoxicity prevention and treatment effect is achieved. The tobacco phytotoxicity environment caused by the tobacco phytotoxicity is eradicated, so that the effects of relieving the tobacco phytotoxicity and repairing the soil are achieved.