44 results about "Metribuzin" patented technology

This invention provides a pretreatment method for detecting metribuzin in soil and broad beans using liquid chromatography-mass spectrometry (LC-MS / MS). The method includes: weighing 10.0 g of soil into a 50.0 ml centrifuge tube, adding 10.0 ml of acetonitrile, vortexing for 3.0 min, adding 3.0 g of NaCl, vortexing for 1.0 min, centrifuging at 5000 rpm for 5.0 min, taking 1.5 ml of the supernatant and adding it to a 2.5 ml centrifuge tube containing 25.0 mg PSA, 25.0 mg C18, and 100 mg anhydrous MgSO4, vortexing for 1.0 min, centrifuging at 8000 rpm for 3.0 min, aspirating the supernatant with a 5.0 ml syringe, filtering through a membrane, and transferring to a 2.5 ml brown sample bottle. This invention is applicable to the detection of metribuzin residues in broad beans, a specialty crop grown in high-altitude regions.

The application discloses a kind of herbicidal compositions, the composition includes active ingredient A and active ingredient B, wherein active ingredient A is formula (I) compound, active ingredient B is selected from one or more of pendimethalin, flufenacet and oxaziclomefone.The mass ratio of active ingredient A and active ingredient B of the composition is 1:50-50:1.The component of the application is reasonable, and the activity and herbicidal effect are not simply superimposed of each component, compared with single preparation, with the characteristics of significant herbicidal effect, low drug dosage, broad spectrum of weeds, good crop safety.

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 invention relates to a herbicide composition, the active ingredients of which contain butachlor, clomazone and oxaziclomefone, and an optional herbicide safener. Wherein the butachlor, the clomazone and the oxaziclomefone are compounded, so that a synergistic effect is achieved. The herbicide composition can further comprise an agriculturally acceptable auxiliary agent and a carrier, and can be prepared into agriculturally acceptable dosage forms. In addition, the invention also relates to an application of the herbicide composition for preventing and treating agricultural weeds.

The invention relates to the technical field of pesticides, and discloses a weeding composition and application thereof. The effective components of the weeding composition comprise mesosulfuron-methyl, isoproturon and metribuzin. The weeding composition can be applied to prevention and treatment of annual weeds in wheat crop fields. The invention provides a mesosulfuron, isoproturon and metribuzin ternary compound composition, a method for preparing the dispersible oil suspension and assistant optimization, the product stability is improved, the dispersible oil suspension can tolerate high and low temperature intervals, meanwhile, the dispersible oil suspension can tolerate different water qualities such as C water, D water and 3WHO water, the product suspension rate is high, and the dispersible oil suspension can be subsequently used in different countries and regions and has wide application prospects. And large-scale popularization and application are facilitated.

The present invention discloses a herbicide composition comprising an active ingredient A and an active ingredient B, wherein the active ingredient A is a compound of formula (I) and the active ingredient B is selected from one of oxaziclomefone and pendimethalin. The mass ratio of active ingredient A to active ingredient B in the composition is 1:28 to 10:1. The present invention also relates to the use of the herbicide composition for controlling the germination or growth of weeds in useful plants, and is particularly suitable for controlling the germination or growth of weeds in rice fields.

The present invention relates to a herbicidal composition comprising as active ingredient a mixture of components (A) and (B) wherein component (A) is a compound of formula (I) and component (B) is metribuzin or an agrochemically acceptable ester or salt thereof. (I)

The present invention belongs to the field of pesticides, and particularly relates to a herbicidal composition and its application. The herbicidal composition comprises an active ingredient A and an active ingredient B in an effective herbicidal amount, wherein the active ingredient A is, and the active ingredient B is selected from one or more of the following compounds: pyroxasulfone, acetochlor, butachlor, propisochlor, S-metolachlor, pendimethalin and metamitron. This composition can effectively control various weed problems in the strip intercropping fields of corn and soybean, has high safety and good selectivity for crops, and has the characteristics of expanding the herbicidal spectrum, reducing the application amount, being able to produce a synergistic effect and solving resistant weeds, etc.

The present application belongs to the technical field of metribuzin wastewater treatment, and particularly relates to an extractant for metribuzin wastewater treatment and a treatment method thereof. The metribuzin wastewater treatment method comprises the following steps: preparing a metribuzin wastewater extractant; uniformly dispersing the metribuzin wastewater extractant into acidic wastewater, continuously stirring, extracting impurities in the acidic wastewater by the metribuzin wastewater extractant, standing and separating after the extraction is completed, and collecting the water phase and the oil phase after the separation; and recycling sulfuric acid in the water phase by a high-temperature concentration process to obtain high-concentration sulfuric acid, wherein the water produced by the concentration process does not need to be discharged and can be continuously used. The present application removes impurities in metribuzin wastewater by preparing an extractant, purifies acidic wastewater, recycles water, sulfuric acid, methanol and the extractant by a high-temperature concentration and negative pressure distillation process, realizes resource recycling and utilization, improves production efficiency, reduces cost, and reduces environmental burden.

This invention relates to the field of pesticide technology and discloses a herbicidal composition and its application. The active ingredients of the herbicidal composition include mesosulfuron-methyl, isoproturon, and metribuzin. The herbicidal composition can be applied to control annual weeds in wheat-growing fields. This invention provides a ternary compound composition of mesosulfuron-methyl, isoproturon, and metribuzin, and provides a method for preparing a dispersible oil suspension and preferred adjuvants, improving product stability and enabling it to withstand high and low temperature ranges. Furthermore, this invention can withstand different water qualities such as C-type water, D-type water, and 3WHO-type water, and the product has a high suspension rate, which can subsequently meet the needs of different countries and regions, facilitating widespread application.

The present invention concerns a method for controlling a weed in an agricultural crop, which comprises applying an effective herbicidal dose of metamitron to the weed or the locus of the weed, or to the agricultural crop or the locus of the agricultural crop, optionally in combination with another phytosanitary active ingredient.

The utility model relates to the technical field of metribuzin wastewater treatment equipment, in particular to a metribuzin wastewater treatment device. The technical problems that when a metribuzin wastewater treatment device is used, metribuzin wastewater is generally subjected to simple purification treatment by adding a disinfectant into the wastewater, however, the metribuzin wastewater purified by the disinfectant cannot be directly discharged and needs to be treated for multiple times, and the purification efficiency is relatively low are solved; according to the technical scheme, the metribuzin wastewater treatment device comprises a treatment device main body, a supporting assembly, a water inlet assembly, a heating assembly, a neutralizing assembly, a gas guide assembly and a collecting assembly, compared with the traditional metribuzin wastewater treatment device, the metribuzin wastewater purified by a medicament cannot be directly discharged, the purification efficiency is low, and the metribuzin wastewater treatment device can heat and distill sewage by arranging the distillation structure, so that the treatment effect of the metribuzin wastewater is improved. Pure water vapor generated by wastewater distillation is collected, and meanwhile, a sewage concentrated solution can be subjected to dosing purification, so that the treatment efficiency is relatively high.

The invention discloses a synthesis method of a metribuzin isomer. Triazinone is used as a raw material, dimethyl carbonate is used as a methylation reagent, and the metribuzin isomer is prepared under base catalysis. The synthesis method is simple and convenient to operate, the used dimethyl carbonate replaces a traditional virulent methylation reagent, virulent by-products are eliminated, the method has the characteristics of low cost and environmental protection, a standard substance is provided for qualitative and quantitative analysis of impurities in metribuzin production, an optimized technical scheme is provided for production of triazinone herbicides, and the method is suitable for industrial production. The method is suitable for industrial application.

A method for controlling weeds, which comprises the application of an effective amount of a herbicide composition comprising at least metamitron in an earlier stage, to a locus where the weed is to be controlled, and the application of an effective amount of at least one additional herbicide in a late stage.

The invention provides a broad-leaf closed weeding composition for a soybean field. The active ingredients of the broad-leaf closed weeding composition are metribuzin, flumioxazin and oxadiazon. The invention further provides application of the weeding composition for broad-leaf closed weeding in soybean fields. The broad-leaf closed weeding composition for the soybean field is applied in front of soybean seedlings, closed one-time weeding is achieved, broad-leaf weeds in the soybean field are basically eliminated, and secondary pesticide application after seedling is not needed; the lasting period on weeds is prolonged, the pesticide application frequency is reduced, and the labor cost is reduced; phytotoxicity in the seedling stage of the soybeans due to the use of broad-leaf herbicides after the soybean seedlings is avoided, namely, the growth period of the soybeans is prolonged by more than 10 days, and the yield of the soybeans is correspondingly increased by more than 15%; the threat of broad-leaf weeds in the whole growth period of soybeans can be covered by one-time pesticide application, and the requirement for repeated pesticide application is reduced.

The present application belongs to the field of agricultural weeding technology, and particularly relates to a weeding composition and application thereof in preventing and removing weeds in paddy fields. The weeding composition comprises, by mass ratio, active A, active B and active C in a mass ratio of (0.1-2):(0.5-10):(1-125), wherein the active A is oxaziclomefone, the active B is selected from bensulfuron-methyl and / or pyrazosulfuron-ethyl, and the active C is selected from propachlor and / or butachlor. The composition of the present application is used in the closure of water-seeded rice fields, and has a significant synergistic effect on common weeds in water-seeded rice fields compared with each single agent and conventional compounding schemes of propachlor-bensulfuron-methyl and butachlor-bensulfuron-methyl, and is safe for rice.

This application relates to intermediates in the isolation of metribuzin and 4-aminomethylated metribuzin. Metribuzin p-toluensulfonate.

The invention belongs to the technical field of crop cultivation, and particularly relates to a preparation capable of relieving potato herbicide phytotoxicity and improving tuber quality and a preparation method thereof. The preparation comprises the following components: leucine, cysteine, alanine, fulvic acid, glycine, arginine, lysine, proline, serine, threonine, aspartic acid, isoleucine, histidine, manganese, zinc, nano-selenium and water. After the preparation is used in a potato field, phytotoxicity symptoms, such as leaf tip burn, dryness, leaf shrinkage and plant growth delay, caused by metribuzin, rimsulfuron and other herbicides can be remarkably relieved, and experimental verification shows that the phytotoxicity symptoms are remarkably relieved after the preparation is sprayed. Meanwhile, by using the preparation, the content of Vc (vitamin C) and total protein in potato tubers is also remarkably increased, the yield of potatoes is increased, and the yield increasing range is remarkable.

The present invention provides a synergistic herbicidal composition comprising of phenylpyrazoline class of herbicide such as Pinoxaden, Triazinone class of herbicide such as Metribuzin and at least one herbicidal compound is selected from Isoproturon or Metsulfuron-methyl.

The invention relates to the technical field of pesticides, in particular to a herbicidal composition, preparation and application thereof. The herbicidal composition comprises a component A and a component B, wherein, the component A is benzylazole, and the component B is at least one of acetochlor, butachlor, metolachlo, dimethylphenoxychlor, mesotrione, nicosulfuron, atrazine, terbuthylazine, metribuzin, S-metolachlor and dimethylphenoxychlor. The weight ratio of the component A to the component B is 1:(1-80).

The present invention provides an aqueous pyroxasulfone-metribuzin-based suspension concentrate (SC) composition comprising a particular wetting agent(s). The compositions of the invention are useful in controlling weed.

The invention provides a soybean field multi-element compound water dispersible granule and a preparation method thereof, the water dispersible granule is prepared by compounding flufenacet and metribuzin, the control effect is good, the physical and chemical properties are stable, the water dispersible granule is not easy to decompose and deteriorate to generate phytotoxicity, and the suspension rate reaches more than 95%; 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 present invention relates to a herbicidal composition comprising an active component (A) fluazifop-propyl and an active component (B) selected from the group consisting of oxaziclomefone, oxadiazon, cypermethrin, triazolam, simet-pyraclostrobin, mefenacet, tetrazolam, bispyribac, oxazolidinone, and pyrazosulfuron-methyl, wherein the weight ratio of the active components (A) to (B) is 100:1-1:100. The present invention also relates to the use of the herbicidal composition for controlling the germination or growth of weeds in useful plants selected from wheat, barley, rye, triticale, oats, corn, rice, soybean, peanut, oilseed rape, corolla, potato, sugar beet, sugarcane, cotton, flax, sorghum, forage grass, and lawn; the composition is particularly suitable for controlling the germination or growth of weeds in rice crops.

The invention discloses a weeding composition, the effective components of the weeding composition comprise an active component A, an active component B and an active component C. The active component A is pyroxasulfone, the active component B is clomazone, and the active component C is metribuzin or oxyfluorfen. The weeding composition can be used for preventing and removing various annual or perennial weeds in corn and soybean banded multiple cropping fields, has a remarkable preventing and removing effect, and has the advantages of being wide in use suitable period, long in lasting period, safe to crops and the like.

The invention relates to a weeding composition. The active ingredients of the weeding composition comprise metamifop, oxaziclomefone and cyhalofop-butyl. In the weeding composition provided by the invention, the weight ratio of the three active ingredients is (12-24): (0.5-5): (8-16). The weeding composition provided by the invention can further comprise an agriculturally acceptable auxiliary agent and a carrier, and can be prepared into agriculturally acceptable dosage forms. The invention also relates to an application of the weeding composition for preventing and treating agricultural weeds.

The invention relates to a weeding composition containing a stabilizer, in particular to a pesticide preparation product prepared from effective components, the stabilizer, a wetting dispersant, an antifreeze agent, a thickening rheological agent, a preservative, a defoaming agent, a carrier and the like in proportion through shearing, sanding and post-mixing, and belongs to the field of pesticide formulation processing. The weeding composition comprises a weeding preparation, active ingredients and agriculturally acceptable auxiliaries and carriers, the active ingredients are pyroxasulfone, flumetsulam and metribuzin, and the auxiliaries contain a stabilizer; wherein the stabilizing agent is tartrate, and the addition amount of the stabilizing agent is 0.1-10%. By adding the stabilizer into the weeding composition, the problem that a preparation sample becomes sticky in heat storage (54 DEG C, 14 days) can be solved, and the dispersing capacity of the preparation heat storage sample can be improved.

The invention discloses a weeding composition which comprises an active component A and an active component B. The active component A is a compound shown in the formula (I), and the active component B is selected from one or more of pendimethalin, flufenacet and oxaziclomefone. The mass ratio of the active component A to the active component B of the composition is (1: 50)-(50: 1). The composition is reasonable in component, the activity and the weeding effect of the composition are not simple superposition of all the components, and compared with a single preparation, the composition has the characteristics of remarkable weeding effect, low dosage, wide weed control spectrum and good safety to crops.

The invention belongs to the field of pesticides, and particularly relates to a high-stability pesticide herbicide and a preparation method thereof. The pesticide herbicide provided by the invention is prepared from the following raw materials in parts by mass: 20-40 parts of compound pesticide raw medicine, 5-15 parts of an emulsifier, 25-60 parts of a solvent and 8-20 parts of a cosolvent, and the compound pesticide raw medicine is prepared from pretilachlor, oxadiargyl and oxaziclomefone; the solvent comprises DMF or DMAC; the pesticide herbicide product is not easy to separate out active compound crystals at low temperature, and has an excellent weeding effect after being applied.

A composition comprising pinoxaden, metribuzin and an adjuvant; wherein the adjuvant is a built-in oil-type adjuvant