113 results about "MCPA" patented technology

The invention discloses a herbicide composite. The herbicide composite comprises topramezone used as a main material and an auxiliary material which contains one or more than one of atrazine, fluroxypyr, bentazone, dicamba, nicosulfuron, mesotrione, 2,4-dichlorophenoxyacetic acid, 2,4-dichlorophenoxyacetic acid butyl ester, 2,4-dichlorophenoxyacetic acid iso-octyl ester, terbuthylazine, MCPA-sodium, foramsulfuron and acetochlor. The herbicide composite is a novel herbicide composite with good weeding effect.

The invention discloses a weeding composition for a wheat field. The active ingredients of the weeding composition comprise (A): any one of carfentrazone and clodinafop-propargyl, and (B): any one or two of tribenuion methyl, bensulfuron methyl, fluroxypyr, florasulam, pyrazosulfuron, isoproturon and MCPA-Na (2-methyl-4-chloro-phenoxyacetic acid-sodium); or comprise two ingredients of A and any one of B. The ratio of two ingredients is 1-70:1-70, and the ratio of three ingredients is 1-50:1-50:1-50. The composition of the invention can be prepared into missible oil, oil suspension agent, wettable powder, water dispersible granules and the like, and has the advantages of good weeding effect, wide weeding spectrum, small use amount, low residue, safety to crops and low cost. Moreover, the composition has good prevention and control effect in removing broadleaf weeds and partial grass family weeds, the prevention and control rate is over 90%, and the harm of weeds in the wheat field can be essentially controlled throughout the season by once application.

The present invention provides an amicarbazone-containing pesticide composition which is composed of active ingredients, additives, a solvent or a carrier. The active ingredients comprise two components, the first one is amicarbazone, the second one is one of glyphosate, MCPA sodium, ametryn, atrazine, diuron, and 2,4 D-butylate or a combination thereof; the active ingredients may also include any one of acetochlor, metolachlor or nicosulfuron. According to the invention, the combination of above pesticide ingredients not only can complement each other, but also expands an herbicide spectrum, and achieves significant synergies, improving herbicide effect. The pesticide composition of the invention has good safety on sugar cane, corn, and afterreap crops, has significant herbicide effects on evil weeds such as tribulus terrestris, brachiaria plantaginea, bermuda grass and cyperus rotundus, and has no the proneness of making weeds resistant to pesticide, and has broad prospects for agricultural promotion.

The invention discloses a tembotrions compound cornfield herbicide. According to the adopted technical scheme, the herbicide comprises the following components in percentage by weight: 5-80 percent of effective components, 5-15 percent of auxiliaries and 5-80 percent of filler, wherein a first effective component is tembotrions, and a second effective component is any one of atrazine, terbuthylazine / nicosulfuron, foramsulfuron, rimsulfuron / fluroxypyr, MCPA-Na / mesotrione, sulcotrione and topramezone; the weight ratio of the first effective component to the second effective component is (1:8)-(8:1). The technical effect is that multiple grassy weeds, broadleaf weeds and cyperaceae weeds which can be prevented by the independent tembotrions can be also prevented by the tembotrions compound cornfield herbicide; furthermore, a prevention effect for part of grassy weeds and part of broadleaf weeds is improved, the herbicide controlling spectrum is expanded, the safety to the corns is improved, the drug using amount is reduced, the prevention and treatment cost is reduced, and the pollution to the environment is reduced.

A composite herbicide for corn field contains phenyloxyacetic acid kind of herbicide chosen from 2,4-D sodium, MCPA, MCPA sodium, 2,4-D butylate, etc, and sulfonylurea kind of herbicide chosen from nicosulfuron, rimsulfuron, etc in weight ratio of (1-80):1. The preparation is wattable powder and soluble powder.

The invention discloses a gibberellic acid-containing herbicide composition and a preparation method as well as application thereof. The gibberellic acid-containing herbicide composition is prepared from the following components in parts by weight: 0.01 to 99 parts of gibberellic acid and 1 to 90 parts of herbicide; the herbicide is one or a mixture of at least two of cyhalofop-butyl, penoxsulam, metamifop, bispyribac-sodium, quinclorac, anilofos, pretilachlor, butachlor, mefenacet, bensulfuron methyl, pyrazosulfuron-ethyl, pyriminobac-methyl, bentazone, mesotrione, halosulfuron-methyl, metolachlor, pendimethalin, oxadiazon, oxadiargyl, MCPa, fluroxypyr and diflufenican. The gibberellic acid-containing herbicide composition has synergism to weed prevention and control, the weed control efficiency is improved, the safety of the herbicide to crops can be improved, the herbicide phytotoxicity problem in agricultural production is fundamentally solved, and meanwhile the crop yield is improved by adjusting crop growth.

The invention discloses a dispersible oil suspending agent containing florasulam and MCPA-isooctyl. The dispersible oil suspending agent comprises effective active ingredients, namely florasulam and MCPA-isooctyl, a dispersing agent, an emulsifier, a wetting agent, a thickening agent, a stabilizing agent, a defoaming agent, a synergistic agent and plant oil. According to the dispersible oil suspending agent, a scheme of blending two effective active ingredients is adopted, control effect of mixing two effective active ingredients is better than that of a single effective active ingredient, and the dispersible oil suspending agent has a synergistic effect. The prepared dispersible oil suspending agent has the weeding effect obviously better than that of other dosage forms and also has good control effect to various broad leaf weeds in a wheat field, control cost can be reduced, safety to crop is good, and safety requirements to pesticide preparation are met.

The invention provides a herbicidal composition comprising a mixture of: (a) polymeric microparticles containing a first herbicide, wherein the first herbicide is a synthetic auxin herbicide (e.g. dicamba, MCPA or 2,4-D) or an acetolactate synthase (ALS) inhibitor herbicide (e.g. triasulfuron, tribenuron-methyl, iodosulfuron-methyl, mesosulfuron-methyl, sulfosulfuron, flupyrsulfuron-methyl, or pyroxsulam); wherein the first herbicide, when in a salt-free form and when not contained within polymeric microparticles, antagonises the herbicidal activity of pinoxaden; and (b) pinoxaden; wherein the polymeric microparticles are controlled-release matrices, within which is the first herbicide, and which function in such a way as to control and / or slow down the release of the first herbicide from the polymeric microparticles into a liquid (e.g. aqueous) medium when the polymeric microparticles are placed (e.g. dispersed) in and in contact with the liquid medium. The containing of the first herbicide within the controlled-release polymeric microparticles is thought to mitigate the antagonism of the grass-weed-herbicidal activity of pinoxaden which might otherwise be caused by the first herbicide depending on the circumstances. The invention also provides a method of reducing the antagonistic effect on the control of monocotyledonous weeds in non-oat cereals which is shown by a herbicidal mixture of either a synthetic auxin herbicide with pinoxadenor an ALS inhibitor herbicide with pinoxaden, which comprises applying a herbicidal composition according to the invention. The invention also provides a herbicidal composition comprising (a) polymeric microparticles (e.g. controlled-release matrices), containing a first herbicide as defined above, and either (x) a nonionic surfactant or (y) a surface-modified clay, as defined herein.

A method is disclosed for obtaining high throughput linearity using a pre-distorter in front of a RF power amplifier, for instance a multi-carrier power amplifier (MCPA) for a communications system. The method can be carried out off-line to thereby save costs and components otherwise needed for a common on-line feed back. In a first step calibration is performed by measuring by an off-line spectrum analysis an output spectrum of the power amplifier and simultaneously applying a known input signal. As a next step digitized parameters characterizing the power amplifier are calculated in the frequency domain by comparing spectrum points between input spectrum and output spectrum. Thereafter calculated and weighted digitized parameters are transferred to a pre-distorting device. In a third step the known signal spectrum is transferred to the pre-distorting device feeding its output signal together with the original known signal spectrum to the power amplifier input thereby compensating for power amplifier non-linearity and minimizing inter-modulation products. Finally in a fourth step an uncompensated known input spectrum is compared with a corresponding compensated output spectrum of the power amplifier and the steps of calibration calculation are repeated until a best optimization input signal to the power amplifier regarding the inter-modulation products of the output signal has been achieved.

The invention discloses a herbicide composition containing glyphosate, MCPA (2-methyl-4-chloro-phenoxyacetic acid) and carfentrazone-ethyl. The herbicide composition is characterized in that the pesticide active ingredients of the composition are glyphosate or salts thereof, MCPA or salts or esters thereof and carfentrazone-ethyl; based on the herbicide composition, the weight percent of the pesticide active ingredients is 31.1-85%, wherein the weight percent of the glyphosate or salts thereof is 30-70%, the weight percent of the MCPA or salts or esters thereof is 1-30%, the weight percent of the carfentrazone-ethyl is 0.1-20% and the balance is non-pesticide ingredients. The dosage forms of the herbicide composition are wettable powder, water dispersible granules, soluble powder, soluble granules, aqueous solutions, emulsion in water and microemulsion. The composition has the advantages that after compounding, the herbicide composition has obvious synergistic effects, expands the weed control spectrum, increases the weed control speed, obviously reduces the usage amount and numbers of use of herbicides and can be applied to controlling imperata cylindrica, Bidens pilosa, dicranopteris dichotoma, eleusine indica, erigeron canadensis and other weeds in arable lands and non-arable lands.

The invention discloses a wheat paddock weeding composition. The composition comprise the active ingredients of florasulam, fluroxypyr and MCPA-isooctyl in a weight ratio of (0.2-1.2):(5-20):(15-60). The composition can be formulated into a suspending agent, a dispersible oil suspending agent, suspension emulsion and a creaming agent, is reasonable in component, has a good weeding effect and is low in use cost; besides a remarkable weeding effect, the composition has obvious synergism compared with an existing single preparation and an existing binary mixed preparation since the activity and the weeding effect of the composition are not realized by the simple superposition of the activity and the weeding effects of the active ingredients; and the composition is good in safety and meets the safety requirements of agricultural chemicals, and the weeding activity of the composition to wheat paddock weeds is high.

The invention discloses a novel ternary herbicide composition including effective components of herbicides A, B and C in the weight percentage ratio range of 1-30:1-70:0.1-30. The herbicide A is MCPA sodium, the herbicide B is bentazone, and the herbicide C is carfentrazone ethyl. The novel ternary herbicide composition using the technical scheme has the significantly improved weed control effect, so as to better aid crop growth, and reduce cost and save manpower; at the same time, some effective components in the novel ternary herbicide composition are for prepared into microcapsule suspensions, so as to effectively reduce the occurrence of injury, and further improve the weeding effect, and prolong the therapeutic time.

The invention provides a synergetic weeding composition containing thiencarbazone-methyl and pinoxaden. The synergetic weeding composition is characterized by comprising active components A and B, wherein the component A is thiencarbazone-methyl and pinoxaden; the component B is selected from one or combination of one or more of flufenacet, diflufenican, fluroxypyr and derivatives thereof, carfentrazone-ethyl, flumetsulam, isoproturon, flurtamone, tralkoxydim, thifensulfuron-methyl, foramsulfuron, pyrasulfotole, bromoxynil octanoate, MCPA-2ethylhexyl ester, F4050, SL-1201 and F9600. The synergetic weeding composition also comprises additives used for processing pesticide preparations. The synergetic weeding composition can be prepared into a conventional pesticide preparation and can be used for controlling unwanted plants.

The invention provides a complex herbicidal composition. The complex herbicidal composition comprises a first active component, namely penoxsulam, a second active component, namely bentazone, and a third active component, namely MCPA (2-methyl-4-chlorophenoxyacetic acid) sodium or a derivative thereof, and the mixture ratio range by weight of the three active components is (0.1-40): (1-100): (1-100). According to the complex herbicidal composition provided by the invention, the penoxsulam, the bentazone and the MCPA-sodium or the derivative thereof are used for ternary compounding, so that the new composition obtains gain effects in the control of broadleaf weeds and sedge weeds in a paddy field and better effects on controlling the gramineous and broadleaf weeds and the sedge weeds are particularly during the tillering stage of paddy rice. In addition, the using quantity of the bentazone and the MCPA-sodium or the derivative thereof during the tillering stage of the paddy rice can be reduced, and the safety of grains can be improved.

A herbicide for sugar cane field is proportionally prepared from MCPA-isooctyl, ametryne, assistant and solvent through preparing emulsified oil.

The invention relates to a herbicide composition for controlling farmland weeds, and a use thereof, and concretely relates to a binary herbicide composition used for controlling corn field grassy weeds, broadleaf weeds and Sedge weeds and treating topramezone and MCPA as active components. The topramezone: MCPA weight ratio of the composition is 1:200-2:3, and the composition can be processed to prepare any preparation form allowable in agriculture. The herbicide composition has a more substantial synergistic effect than the individual application of the above two components when the herbicide composition is used for controlling the corn field weeds, and has the advantages of weed control spectrum enlargement, control cost reduction, weed resistance generation alleviation, and good safety to crops.

The invention relates to a prosulfuron compounded corn field herbicide. A technical scheme adopted in the invention is characterized in that the herbicide comprises 5-80wt% of an effective component, 5-15wt% of an assistant and 5-80wt% of a filler, wherein the effective component comprises a first effective component and a second effective component, the first effective component is prosulfuron, the second effective component is anyone of atrazine, terbuthylazine / nicosulfuron, foramsulfuron, rimsulfuron / fluroxypyr, MCPA / sulcotrione, tembotrione and topramezone, and the weight ratio of the first effective component to the second effective component is (1:20)-(2:1). The prosulfuron compounded corn field herbicide has the advantages of high safety, improvement of the control effects on broad leaved weeds, grassy weeds and Cyperaceae weeds, obvious synergistic control effects on especially the grassy weeds, weed control spectrum widening, improvement of the safety degree to corns, drug consumption reduction, control cost saving, alleviation of the generation of the resistances of the weeds, and reduction of the pollution to the environment.

The invention relates to the field of organic-inorganic composite materials, and in particular relates to a slow-release weeding and sterilizing double-effect pesticide and a preparation method thereof. The preparation method comprises the following steps: intercalating MCPA-(2-Methyl-4-chlorophenoxyacetic acid radical) into a hydrotalcite precursor, intercalating hymexazol into the hydrotalcite precursor, and finally treating the hydrotalcite precursor in a mixed solution containing hydrogen peroxide, isopropanol and water to obtain a slow-release weeding and sterilizing double-effect pesticide; the chemical formula is: [(M<2 +>) 1-x (M<3 +>) x (OH) 2) x +( MCPA-)x (hym) y.mH2O, wherein x = 0.25-0.33, y = 0.12-0.20, m = 3-6, m is the number of interlayer crystalline water molecules, M<2 +> is a divalent metal ion, M<3 +> is a trivalent metal ion, MCPA-is 2-Methyl-4-chlorophenoxyacetic acid radical, and hym is hymexazol. The slow-release weeding and sterilizing double-effect pesticideof the invention has stable intercalation structure, can release the MCPA-and hymexazol for a long time, and plays a slow-release effect.

The invention discloses a weeding composition containing MCPA (2-methyl-4-chloro-phenoxyacetic acid) and dicamba. The weeding composition comprises raw material medicines and auxiliary materials, wherein the raw material medicines comprise 2-methyl-4-chloro-phenoxyacetic acid and dicamba. The invention further discloses a preparation method and an application of the weeding composition. Compared with the prior art, by mixing effective components of weed killers, the weeding composition has the benefits of expanding weeding spectrum, improving weeding effect, prolonging the suitable period of drug application, reducing drug harm, reducing activity of drug residue, holding over generation and development of drug resistance of the weed killers, and having an important ecological and environmental protection significance.

The invention relates to a weeding water aqua prepared by binary combination of gramoxone and MCPA-Na and preparation method thereof. The weeding water aqua is composed of the following components by mass percent: 3-10% of gramoxone, 2-10% of MCPA-Na, 0.01-0.3% of 2-Amino-6-methyl-4-propyl-1, 2, 4triazolo [1,5a] pyriin-5(4H)-on, 5-15% of synergist, 8-20% of penetrant, and balance water. The preparation includes that: in the mass ratio, the gramoxone is added with water and stirred; the MCPA-Na is added with water and stirred; the two are mixed and stirred, the 2-Amino-6-methyl-4-propyl-1, 2, 4triazolo [1,5a] pyriin-5(4H)-on is added into the well mixed and stirred gramoxone and MCPA-Na and stirred; the penetrant and synergist and the mixture are all added into a kettle to be stirred for 10-15 minutes; water is added and stirring is carried out for 20-30 minutes; and then standing, filtering, filling and sampling analysis are carried out, thus finished product is obtained. The invention overcomes the defect of the existing weed killer that single weed can be killed, is a quick-acting touch out type broad-spectrum weed killer, has fast action on broadleaf weed in gardens of rice, wheat, barley, corn, peanut, potato, cotton and mulberry and is safe to crops, dosage is 200-300g per mu, and application cost is 11.9-9.75% (mu / once) lower than that of other similar products.

The invention provides a degrading strain for dimethyltetrachloro (MCPA) of a phenoxyacetic acid herbicide and a microbial agent produced by the degrading strain, wherein the adopted strain is a gramstaining reaction negative strain DCP-6d, the strain is identified as Pigmentiphaga sp., the strain is deposited in the China Center for Type Culture Collection on December 23, 2019, and the preservation number of the strain is CCTCC M 20191085. The degrading strain DCP-6d for the MCPA of the phenoxyacetic acid herbicide can be applied to degradation of the MCPA and 2,4-dichlorphenoxyacetic acid (2,4-D), and is preferentially applied to degradation of the MCPA in soil; and a degrading microbial agent product is directly applied so that the residual quantity of the MCPA in the soil can be decreased by 90% or above, and the pollution problem of the MCPA in the soil is solved.

The invention relates to the field of organic-inorganic composite materials, and in particular relates to a slow-release double-effect pesticide and a preparation method thereof. The preparation method comprises the following steps: intercalating MCPA-(2-Methyl-4-chlorophenoxyacetic acid radical) into a hydrotalcite precursor, intercalating chlorpyrifos into the hydrotalcite precursor, and finallytreating the hydrotalcite precursor in a mixed solution containing hydrogen peroxide, n-propanol and water to obtain a slow-release double-effect pesticide; the chemical formula is: [(M<2 +>) 1-x (M<3 +>) x (OH) 2) x +( MCPA-)x (CPF) y.mH2O, wherein x = 0.25-0.33, y = 0.08-0.10, m = 3-6, m is the number of interlayer crystalline water molecules, M<2 +> is a divalent metal ion, M<3 +> is a trivalent metal ion, MCPA-is 2-Methyl-4-chlorophenoxyacetic acid radical, and CPF is chlorpyrifos. The slow-release double-effect pesticide of the invention has stable intercalation structure, can release the MCPA-and the chlorpyrifos l for a long time, and plays a slow-release effect.

The invention discloses a herbicide, comprising, by weight, 30-90% of glyphosate, 0.5-10% of MCPA-sodium, 3-20% of a surfactant and the balance of auxiliary materials. The herbicide has the advantages that the control effect of the herbicide is better than that of a traditional single agent, interval time between weeding and tillage is shortened, labor intensity is lowered, and high cost performance is achieved; the weeding effect for resistant malignant weeds is enhanced by using the different weeding objects of two low-toxicity herbicides, residues in soil are reduced by using the reasonable combination, and the control effect for target crops is enhanced at the same time.

The present invention relates to a binary compound synergistic herbicide containing mesotrione A and a herbicide B, and is used for settling the insufficiencies of single function, inferior effect, large residual quantity, etc. of herbicide in the chemical prevention of weed of the corn field, wherein, A is mesotrione, and B is one chemical selected from B1 of 2,4-D, B2 of 2,4-D sodium, B3 of 2,4-D ethyl, B4 of 2,4-D butyl, B5 of 2,4-D isoctyl, B6 of 2,4-D dimethylamine, B7 of 2-methyl-4-chloro-phenoxyacetic acid MCPA, B8 of MCPA sodium, B9 of MCPA ethyl, B10 of MCPA butyl, B11 of MCPA isoctyl, and B12 of MCPA dimethylamine. The binary combination synergistic herbicide used for preventing weed of the corn field according to the invention contains 1-99 weight parts of mesotrione A and herbicide B and conventional herbicide adjuvant and / or carrier. The binary combination synergistic herbicide according to the invention has the effects of high weed killing effect, broad weed killing spectrum, high safety to the corn, no side effect, no influence to the flowing crop and low use cost.

A sterilant composite herbicide with broad spectrum is proportionally prepared from glyphosate-isopropylamine salt, MCPA-isopropylamine salt, and surfactant.

The invention discloses a herbicidal composition containing MCPA (2-methyl-4-chloro-phenoxyacetic acid) and clopyralid. The herbicidal composition comprises active pharmaceutical ingredients and auxiliary materials, and the active pharmaceutical ingredients comprise the 2-methyl-4-chloro-phenoxyacetic acid and the clopyralid. The invention further discloses a preparation method and application of the herbicidal composition. Compared with the prior art, the herbicidal composition disclosed by the invention has the following beneficial effects that: the herbicidal spectrum can be expanded by mixing the active ingredients of the herbicide, the herbicidal effect is improved, the period which is suitable for applying the herbicide is prolonged, the harm of the herbicide is reduced, the residual activity of the herbicide is reduced, the generation and development of resistance to the herbicide are deferred, and the herbicidal composition further has important ecological significance and environmental protection significance.

The invention discloses a composition containing MCPA-Na and a cyclohexenone herbicide. The composition contains the effective ingredients of MCPA-Na and the cyclohexenone herbicide, wherein the mass ratio of MCPA-Na to the cyclohexenone herbicide is (1-10): (10:1); the preferential mass ratio of MCPA-Na to the cyclohexenone herbicide is (1-6): (6:1); the most preferential mass ratio of MCPA-Na to the cyclohexenone herbicide is (1-6): 1. The composition can adopt any one preparation formulation accepted by pesticides, and has a very good synergistic effect within a certain proportion range; compared with that of a single herbicide, the weeding effect of the composition is remarkably improved; meanwhile, the herbicide consumption and the cost are reduced, herbicide residues are reduced, and the potential threats of the pesticides to the environment are relieved.

The invention relates to a synergistic weeding composition containing clodinafop-propargyl. The composition is composed of the following active components: clodinafop-propargyl, carfentrazone-ethyl and MCPA-sodium (2-methyl-4-chloro-phenoxyacetic acid-sodium) that are in a weight ratio of 1-40:1-40:10-80. The composition can be prepared into wettable powder, water dispersible granules, oil-based suspensions, suspension emulsions, microemulsions, and emulsions in water. The weeding composition provided in the invention can be used for prevention and treatment of broadleaf weeds, gramineous weeds and cyperaceae weeds in corn field and wheat field.