42 results about "Chlortoluron" patented technology

The invention discloses a herbicide composition containing topramezone, belonging to the technical field of pesticides. The herbicide composition comprises a raw medicine prepared by compounding topramezone and a herbicide B, wherein the ratio of the topramezone to the herbicide B is (1-80):(1-80); and the herbicide B is any one of the following herbicides: fenoxaprop, fenoxaprop-p, isoproturon, diclofop-methyl, chlortoluron, methabenzthiazuron, imazamethabenz, tralkoxydim, difenzoquat, flampro, flampro M, pendimethalin, primisulfuron and the like. The herbicide composition disclosed by the invention is prepared by compounding topramezone and any one of the herbicide B; and the composition has the advantages of long duration, wide herbicide controlling spectrum and obvious weed control synergism, and overcomes the shortcomings of high cost and short duration by using topramezone only in the prior art.

The invention discloses herbicide containing glufosinate. The herbicide containing glufosinate is characterized by comprising technical material composed of glufosinate and herbicide B according to a proportion of 1-80:1-80. The herbicide B is one of fenoxaprop-ethyl, fenoxaprop-P-ethyl, isoproturon, diclofop-methyl, chlortoluron, methabenzthiazuron, imazamethabenz, tralkoxydim, difenzoquat, flampro, flamprop-M, pendimethalin, nicosulfuron, primisulfuron and the like. The herbicide containing glufosinate is composed of herbicide A and the herbicide B and has the advantages that the herbicide is capable of killing ground weeds and grass seeds which are about to germinate and is long in effect duration; herbicide controlling spectrum is wide, and the herbicide is widely applicable to controlling weeds in dry lands; the herbicide is low in toxicity, weak in sensitization and low in poisoness to crops and human, can control weeds safely without harming the crops, and is evident in weed control synergy.

The invention discloses a mesosulfuron-methyl compound herbicide which consists of mesosulfuron-methyl as active ingredient I, active ingredient II and auxiliary ingredients; the active ingredient II is the combination of one or more of flucarbazone-Na, isoproturon, chlortoluron, pyroxsulam, 2-methyl-4-chlorophenoxy acetic acid, 2,4-D butyl ester, dicamba, bromoxynil, amidosulfuron, bensulfuron-methyl, flumetsulam, fluoroglycofen-ethyl and florasulam; the auxiliary ingredients consists of adjuvant and one of filler and solvent, and the adjuvant is the combination of one or more of emulsifying agent, dispersing agent, wetting agent, disintegrant, binding agent, antifreezing agent and thickening agent; the sum of the weight of the mesosulfuron-methyl as the active ingredient I and the weight of the active ingredient II is 1 to 85 percent of the total weight of the mesosulfuron-methyl compound herbicide; and the weight ratio of the active ingredient I to the active ingredient II is 1:20 to 20:1. The mesosulfuron-methyl mixed herbicide is novel herbicide for wheatlands.

The invention relates to an herbicide composition containing clacyfos. The 100% of herbicide composition comprises an ingredient A, one or more of an ingredient B and the balance, wherein the ingredient A is the clacyfos, the ingredient B is selected from one or more effective ingredients including flucarbazone, pyraflufen-ethyl, florasulam, flumetsulam, pyroxsulam, 2,4-D butyl ester, fenoxaprop-p-ethyl, barban, bensulfuron-methyl, pinoxaden, chlortoluron, thifensulfuron, mesosulfuron or sodium metsulfuron methyl iodide, and the balance includes a dispersing agent, a wetting agent, a stabilizing agent, a thickening agent and a solvent. The weight ratio of the ingredient A to the ingredient B is 1:160-160:1. Two groups of active substance can be compounded to effectively prevent and control annual or perennial broadleaf gramineous weeds in wheat fields. The herbicide composition can improve preventive effects of simple dosages and enlarge weeding spectrum and is safe to wheat.

The invention discloses a method for detecting the content of chlortoluron in farmland water by using a fluorescence carbon point and cadmium telluride quantum dot energy transferring technology. According to the method, a fluorescence carbon point is used as an energy transferring donor and a cadmium telluride quantum dot is used as an acceptor to form an energy transferring system with stable performance; the fluorescence carbon point is used for transferring energy to the cadmium telluride quantum dot so as to cause fluorescence enhancement of the cadmium telluride quantum dot. The chlortoluron is added and electrons on the surface of the cadmium telluride quantum dot are transferred to the chlortoluron to be in non-radiation combination with the chlortoluron, so that the fluorescent light of the cadmium telluride quantum dot is regularly quenched. The concentration of the chlortoluron has a good linear relation with a fluorescence quenching degree (F0 / F) in a range of 0.05-12.0 micrograms / liter; a linear regression equation is F0 / F=1.0+0.138c and the linearly dependent coefficient r is equal to 0.9979; the detection limit of the method is 0.017 microgram / liter. The method disclosed by the invention is simple, high in sensitivity and good in selectivity; the detection of the chlortoluron in a farmland water sample is very convenient and rapid.

The invention discloses a method for absorbing and utilizing phosgene tail gas. The method comprises the following steps: the phosgene tail gas generated in a phosgenation process (especially the phosgene tail gas generated in the phosgenation process with content of between 10 and 50 percent (V / V), such as the phosgene tail gas generated in the phosgenation process of diuron, chlortoluron and other products) is directly cooled and absorbed through a halohydrocarbon solvent, phosgene and partial hydrogen chloride in the phosgene tail gas are recovered to obtain a phosgene tail gas solution; the phosgene tail gas solution is used as a phosgene raw material for synthesizing pesticide intermediate or acyl chloride chemical products in the action of a composite catalyst; and the composite catalyst contains at least one pyridine or bipyridyl and Lewis acid salt of at least one rare-earth metal. Compared with other methods, the solvent cooling direct absorption method has the advantages of less investment, low energy consumption, convenience in operation and the like.

The invention discloses a phenylurea herbicide N-demethylase gene pudmA and an application thereof. A nucleotide sequence of the phenylurea herbicide N-demethylase gene pudmA is shown in SEQ ID NO.1; the overall length is 1907bp; the content of G+C is 55.37%; a large subunit code includes 459 amino acids; a small subunit code includes 176 amino acids; and the amino acid sequence is shown in SEQ ID NO.2. The phenylurea herbicide N-demethylase gene pudmA provided by the invention can remove N-methyl of phenylurea herbicides such as isoproturon and chlortoluron, so that the herbicidal activity is removed. Therefore, the phenylurea herbicide N-demethylase gene pudmA can be used for building genetically modified crops of an anti-phenyl urea herbicide. In addition, the phenylurea herbicide N-demethylase gene pudmA and encoded protein PudmA also can be used for removing residual phenylurea herbicide in the environment.

The invention relates to a method for removing a phenylurea herbicide chlortoluron in water by an ultraviolet / persulfate combined process. The method comprises the following specific steps: (1) pretreating a water sample containing impurities; and (2) adding a persulfate solution into the pretreated water sample, adjusting the pH value, and carrying out photodegradation on the water sample by using ultraviolet lamp illumination to remove the phenylurea herbicide chlortoluron in the water. Compared with the prior art, the chlortoluron removal effect can reach 99% or above, the concentration ofdegradation-resistant harmful substances in water is effectively reduced, operation is easy, reaction conditions are easy to control, adopted chemical reagents and materials are conventional productsfor water treatment, other toxic and harmful substances are not introduced, and the method is outstanding in safety and practicability. The reaction environment is easy to realize, treatment can be performed at room temperature, so that feasibility and operability of the method are effectively improved.

The invention discloses a dicamba compound herbicide which comprises a first active ingredient-dicamba, a second active ingredient and an auxiliary. The second active ingredient is one of or a combination of several of chlortoluron, chlorsulfuron, isoproturon, methsulfuron, iodosulfuron methyl sodium salt, clodinafop acid and pinoxaden, the auxiliary is a composition of more than two of dispersant, emulsifier, wetting agent, disintegrant, binder, anti-freezing agent, thickener, filler and solvent, and the compound herbicide can be wettable powder, emulsifiable concentrate, suspension agent, water dispersible granules and soluble liquid. A mass ratio of the first active ingredient to the second active ingredient in the dicamba compound herbicide is 1:50-1:2. The dicamba compound herbicide can be used for preventing and killing both broad-leaf weed and grassy weed in wheat fields, can expand weed killing spectrum, improve prevention effect and delay weed resistance and can reduce consumption of dicamba, lower using cost and improve safety to wheat.

The invention relates to a herbicidal composition containing florasulam. The composition is mainly characterized in that the herbicidal composition comprises 1-60% of active ingredient A, 1-80% of active ingredient B and the balance of auxiliaries. The active ingredient A is florasulam while the active ingredient B is selected from mesotrione or chlortoluron. The composition can be prepared into wettable powder, water dispersible granules, suspension, suspended emulsion and the like. The herbicidal composition provided by the invention is used for preventing and treating weeds in wheat and corn fields.

The invention discloses an herbicide composition containing chlortoluron, pretilachlor and diflufenican and a use thereof. Active components of the herbicide composition comprise chlortoluron, pretilachlor and diflufenican. A mass ratio of chlortoluron, pretilachlor to diflufenican is 10-150: 10-50: 1-50. The herbicide composition has obvious synergism in the above ratio range, reduces an herbicide use dosage, reduces herbicide use frequency, reduces an herbicide use cost, reduces the unfavorable influence produced by the herbicide on an ecological environment and enlarges a weeding spectrum. Through one herbicide use step, various weed problems are solved and defects and limitation of single-ingredient herbicide use are overcome. The herbicide composition prolongs a service life and has an important meaning for comprehensive control of weed resistance. The herbicide composition can fast produce effects, has long action time, has a low use cost and can be used for preventing and controlling gramineous weeds and broadleaf weeds in a wheat field.

The invention discloses an insecticide composition containing prothioconazole and chlortoluron, belonging to the technical field of pesticide preparations. The insecticide composition is prepared fromthe effective active components, i.e., prothioconazole and chlortoluron, wherein the weight ratio of the prothioconazole to the chlortoluron is equal to (30 to 1)-(1 to 30). In the insecticide composition, the weight ratio of the prothioconazole to the chlortoluron is equal to (10 to 1)-(1 to 10). Preferentially, in the insecticide composition, the weight ratio of the prothioconazole to the chlortoluron is equal to 1 to 1, 2 to 1, 3 to 1 or 4 to 1. By reasonably blending the prothioconazole with the chlortoluron, the insecticidal spectrum is expanded, the pesticide effect is improved, the pesticide consumption is reduced, the environmental pollution is reduced, and the insecticide composition is safe and efficient.

The invention discloses a herbicidal composition containing nicosulfuron and chlortoluron and application thereof. The nicosulfuron and the chlortoluron serve as main active ingredients; and the mass ratio of the nicosulfuron to the chlortoluron is 1-60:1-80. Compared with a single-component herbicide, the herbicidal composition delays weed resistance, has a broad herbicidal spectrum and acts for a long time on the premise of improving a herbicide effect, is safe for corns and succeeding crops and can be used for preparing herbicides for controlling postemergence weeds in corn fields.

The invention discloses a wheat field compounded herbicide, which consists of isoproturon, chlortoluron, tribenuron-methly and a leveling agent. The wheat field compounded herbicide can effectively control the weed problems in the whole growing period of the wheat field.

The invention discloses a resistant weed control auxiliary Silwet 806 and chlortoluron synergism composition and an application thereof. The herbicide and auxiliary composition can achieve remarkablesynergistic effects on fenothiocarb-resistant alopecurus japonicus in a winter wheat field, and has the advantages that the composition is safe for wheat, dosage is remarkably reduced, chemical control cost is reduced, other resistant grassy weeds and parts of broadleaf weeds in the winter wheat field are controlled, dosing frequency is decreased and the like. The composition is a feasible synergistic and decrement herbicide and auxiliary composition for controlling the fenothiocarb-resistant alopecurus japonicus in the winter wheat field at present.

The invention discloses a mixed herbicide containing Clodinafop-propargyl and chlortoluron, which comprises the following effective ingredients of Clodinafop-propargyl, chlortoluron and Carfentrazoneethyl at the mass ratio of (4-10): (2-60): (1-10). Compared with the prior art, the mixed herbicide disclosed by the invention has the following outstanding advantages that three herbicides of Clodinafop-propargyl, chlortoluron and Carfentrazoneethyl with the complementary herbicide spectrums are chosen by the mixed herbicide containing Clodinafop-propargyl and chlortoluron to be prepared into a mixture after proper decrement. The mixed herbicide containing Clodinafop-propargyl and chlortoluron has the characteristics of high herbicide activity, wide herbicide spectrum, long residual activity, high safety and the like, delays weed resistance, can be used for preparing the herbicide for killing weeds after seedlings emerge in a wheat field, and is especially used for preventing and killing various Poaceae and broadleaf weeds in the wheat field. The mixed herbicide can be used for preventing and killing various Poaceae and broadleaf weeds in the wheat field, is safe to wheat and aftercrop on the premise of improving the pesticide effect.

The invention discloses a broad-spectrum substituted urea herbicide degradation bacterium and amidohydrolase gene and application and provides an amidohydrolase gene of a substituted urea herbicide and hydrolase protein induced by the gene.The total length of the gene is 1377 bp, the G+C content is 63.5%, 458 amino acids are encoded, and the gene is a new amidohydrolase gene resource having a broad-spectrum hydrolysis function on the substituted urea herbicide, 30 mg / L N-methoxyl-N-methyl substituted urea herbicide (linuron) and N,N-dimethyl substituted urea herbicide (diuron, chlortoluron and fluometuron) can be completely degraded within 24 h, and produced enzymic preparations can be used for removing substituted urea herbicide residues on soil, water and crops.The gene can be used for cultivation of transgenic crops resisting substituted urea herbicide.

The invention relates to a herbicide composition for controlling annual weeds in a wheat field, which consists of tricornox and isoproturon or chlortoluron. The binary composition can be added with a surfactant, a solvent, a stuffing and other auxiliary agents to be prepared into suspending agents, wettable powder, and water dispersible granules. The prior chemical herbicide has the problems of single herbicide controlling spectrum, easy generation of herbicide resistance of weeds, and drug injuries to the current crops and the succession crops, but the herbicide composition overcomes the defects and has the advantages of remarkable synergism, capability of preventing and eliminating the annual gramineae and broad leaved weeds, and safety for wheat and the succession crops.

The invention relates to a method for removing a phenylurea herbicide chlortoluron in water, which is characterized in that PMS is used as an oxidant, and the phenylurea herbicide chlortoluron in the water is oxidized and degraded through ultraviolet radiation. Compared with the prior art, the method provided by the invention can realize thorough mineralization of a considerable part of refractory trace organic pollutants, basically has no catalyst residue and no toxic and harmful by-product generation, has strong adaptability to different matrix water bodies, basically does not need to adjust the pH value of the water to be treated, and has the advantages of wide pH range, convenient operation and low operation cost.

The invention discloses a phenylurea herbicide N-demethylase gene pudmA and an application thereof. A nucleotide sequence of the phenylurea herbicide N-demethylase gene pudmA is shown in SEQ ID NO.1; the overall length is 1907bp; the content of G+C is 55.37%; a large subunit code includes 459 amino acids; a small subunit code includes 176 amino acids; and the amino acid sequence is shown in SEQ ID NO.2. The phenylurea herbicide N-demethylase gene pudmA provided by the invention can remove N-methyl of phenylurea herbicides such as isoproturon and chlortoluron, so that the herbicidal activity is removed. Therefore, the phenylurea herbicide N-demethylase gene pudmA can be used for building genetically modified crops of an anti-phenyl urea herbicide. In addition, the phenylurea herbicide N-demethylase gene pudmA and encoded protein PudmA also can be used for removing residual phenylurea herbicide in the environment.

The invention discloses a method for absorbing and utilizing phosgene tail gas. The method comprises the following steps: the phosgene tail gas generated in a phosgenation process (especially the phosgene tail gas generated in the phosgenation process with content of between 10 and 50 percent (V / V), such as the phosgene tail gas generated in the phosgenation process of diuron, chlortoluron and other products) is directly cooled and absorbed through a halohydrocarbon solvent, phosgene and partial hydrogen chloride in the phosgene tail gas are recovered to obtain a phosgene tail gas solution; the phosgene tail gas solution is used as a phosgene raw material for synthesizing pesticide intermediate or acyl chloride chemical products in the action of a composite catalyst; and the composite catalyst contains at least one pyridine or bipyridyl and Lewis acid salt of at least one rare-earth metal. Compared with other methods, the solvent cooling direct absorption method has the advantages of less investment, low energy consumption, convenience in operation and the like.

The invention discloses a herbicidal composition containing trifloxysulfuron and chlortoluron and application thereof. The herbicidal composition uses trifloxysulfuron and chlortoluron as effective ingredients having a mass ratio of 1-60:1-60. The herbicidal composition is useful in post-seedling weeding of cotton fields, particularly significant in preventing and removing broad-leaved weeds and grassy weeds in cotton fields. Compared with a single agent, the herbicidal composition is higher in efficiency, can delay resistance of weeds, has wide herbicidal spectrum and long acting period, and is safe to both cotton and afterculture crops.

The invention relates to a herbicide composition containing pendimethalin, oxadiazon and chlortoluron. The herbicide composition is characterized in that the weight ratio of the pendimethalin to the oxadiazon to the chlortoluron preferably is 1-75:1-30:1-75 and most preferably is 3-9:2-7:2-8. The herbicide composition has the synergistic effect.

The invention relates to the field of herbicides, and discloses a herbicide composition being wide in herbicide controlling spectrum and remarkable in weed control effect, and application thereof. The active ingredients of the herbicide composition disclosed by the invention contain pyroxasulfone and chlortoluron. The herbicide composition provided by the invention shows an excellent synergistic effect, and the use dosage of pesticides is reduced, so that the pesticide use cost of farmers and the influence degree on the environment are reduced.

The invention discloses a synergistic combination of Silwet 806 and chlorotoluron as an adjuvant for controlling resistant weeds and its application. At the same time, it has the advantages of being safe to wheat; significantly reducing the amount of application and reducing the cost of chemical control; it can also control other resistant gramineous weeds and some broad-leaved weeds in winter wheat fields, and reduce the frequency of application. It is a combination of synergistic and volume-reducing herbicide adjuvants that is currently feasible for the control of winter wheat fields against fenoxaprop-methyl.

The invention relates to weeding composition containing tembotrions and chlortoluron. A preparation of the weeding composition contains tembotrions and chlortoluron at a ratio of parts by weight of (55:1): (1:50), the total part by weight of effective components in the weeding composition preparation accounts for 1%-60% of the total part by weight of the whole preparation, and the weeding composition can be prepared to form pesticide preparation formulations such as wettable powder, a suspending agent, missible oil, microemulsion, an emulsion in water, a granule and a water dispersible granule. The weeding composition has a remarkable synergistic effect, the persistent effect of a single dosage of each component is improved, herbicide resistance of weeds is remarkably delayed, the repeated use times of herbicide, the herbicide use quantity and the agricultural cost are reduced, and the weeding composition is safe to crops, is easily decomposed in the environment after the lasting period, improves safety of next-stubble crops and has significance on ecological environmental protection.

The invention relates to a pesticide composition containing rimsulfuron. The pesticide composition contains an active ingredient A, an active ingredient B, an auxiliary agent and other excipients, wherein the active ingredient A is selected from rimsulfuron; and the active ingredient B is selected from any one of the following compounds: sulcotrione and chlortoluron. The pesticide composition is mainly characterized by containing 1 to 60 weight percent of active ingredient A and 1 to 80 weight percent of active ingredient B; and the weeding composition can be prepared into wettable powder, water dispersible granules, suspending agent, emulsion, emulsion in water or micro emulsion. The weeding composition is used for preventing and controlling weed in corn fields, and has the characteristics of reduction in pesticide consumption, reduction in pesticide residue, good environmental compatibility and safety to people and animals.