39 results about "Benfluralin" patented technology

The invention belongs to the technical field of physicochemical testing of residual pesticide in tobacco and a tobacco product and in particular to a method for mensurating the residual amounts of six classes of dinitraniline pesticides, The method is to extract residual pesticides in an accelerated solvent extraction instrument (ASE), and use a gas chromatograph (matched with electron capture detector (ECD) to directly mensurate the residual amounts of six classes of the dinitraniline pesticides in the tobacco and the tobacco product, namely, butralin, flumetralin, isopropalin, pendimethalin, benfluralin and trifluralin. The method overcomes the disadvantages of a sample treatment method in the prior art and optimizes a sample pretreatment method and the instrument detecting conditions aiming at a tobacco sample. Compared with the prior art, the method has the advantages of simple pretreatment process, reduction of the interference of pigment and other impurities in the tobacco, high automation degree of the whole operation, accurate operation, high sensitivity and good repeatability.

The invention belongs to the field of pesticide, and discloses a herbicidal composition containing diflufenican and clodinafop-propargyl and application thereof. The diflufenican and the clodinafop-propargyl are used as main active ingredients in the herbicidal composition; the mass ratio of the diflufenican to the clodinafop-propargyl is 1-80: 1-80; and the diflufenican and the clodinafop-propargyl account for 5 to 85 percent of the total mass of the herbicidal composition. The herbicidal composition can be applied in preparation of herbicide for controlling weeds among barley or wheat fieldseedlings, particularly in preparation of herbicide for controlling various gramineous weeds and broadleaf weeds in wheat or barley fields. Compared with a single-component herbicide, the herbicidal composition delays the weed resistance, has broad herbicidal spectrum and acts for a long time on the premise of improving herbicide effect, and is safe for wheat, barley and afterculture crops.

An herbicidal composition containing (a) propyzamide and (b) benfluralin provides synergistic control of selected weeds.

The present invention relates to a weeding composition and applications thereof, wherein pendimethalin, quinclorac and flumioxazin are adopted as main components, and a weight ratio of the pendimethalin to the quinclorac to the flumioxazin is 10-200:1-50:0.1-8. According to the present invention, the weeding composition is used for the pre-closing treatment on the cotton field seedlings so as to prevent and remove poaceae weeds and broadleaf weeds, wherein the synergistic effect and the yield increasing effect are significant.

The invention relates to a special weeding composition for citrus orchards and non-cultivated lands, the weeding composition at least comprises glufosinate-ammonium, fluoroglycofen-ethyl and flumioxazin, and the mass ratio of the active components is (1-50): (1-50): (1-50), preferably (1-10): (1-10): (1-10). The weeding composition can be prepared into preparation formulations including an aqueoussolution, a suspending agent, a suspoemulsion, a dispersible oil suspending agent, wettable powder, water dispersible granules, granules and a microcapsule suspension-suspending agent according to amethod known by technicians in the technical field. The weight percentage of the active ingredients in the preparation is 1%-80%, preferably 5%-75%. The invention also relates to an application of thecomposition in preventing and removing weeds in citrus orchards and non-cultivated areas.

The invention belongs to the field of pesticides and discloses a herbicidal composition containing diflufenican and fenoxaprop-ethyl and application thereof. The herbicide takes diflufenican and fenoxaprop-ethyl as the main active ingredients, wherein the mass ratio of diflufenican to fenoxaprop-ethyl is (1-80):(1-80) and diflufenican and fenoxaprop-ethyl account for 1-85% of the herbicidal composition by mass. The herbicidal composition can be applied to preparing the herbicides for controlling the preemergence or postemergence weeds in the barley fields and the wheat fields and especially has obvious effect on preparing the herbicides for controlling various grass and broadleaf weeds in the barley fields and the wheat fields. Compared with the single agent, the herbicidal composition delays weed resistance, has wide herbicidal spectrum and long efficacy duration and does no harm to the wheat and barley and the aftercrops on the premise of improving the drug effect.

The invention relates to a weeding composition for peanut fields. The weeding composition comprises the following effective components in parts by weight: 1-20 parts of flumioxazin, 1-20 parts of imazapic and 1-20 parts of clethodim. The weeding composition disclosed by the invention has the function of synergistic interaction and is applied to preventing and weeding annual weeds in the peanut fields, compared with the effect by separately using single doses, the effect is obviously better, and the spectrum of weed control is extended; besides, the usage amount of agricultural chemicals is reduced, environmental pollution is alleviated, and the production of the drug resistance to weeds is suspended.

The invention discloses a weeding composition and application thereof. The weeding composition comprises an active component A and an active component B, wherein the active component A is flumioxazin,and the active component B is florasulam, wherein the weight ratio of the active component A to the active component B is (0.1-20): (0.1-20). The weeding composition can be used for preventing and removing broad-leaved weeds in wheat, transplanted rice or sugarcane fields. Through the synergistic effect of the active components, the prevention and removal efficiency of broad-leaved weeds is improved, the herbicide controlling spectrum is expanded, and the dosage is reduced.

The invention relates to the technical field of herbicide preparation, in particular to a herbicide for preventing and controlling broadleaf weeds in a cotton field and a preparation process of the herbicide. The herbicide comprises the following components in parts by weight: 35-45 parts of a mixed medicament formed by mixing metamitron and a pendimethalin suspending agent according to the weightratio of (3-7): (0.8-1.2), 8-10 parts of modified trifluralin, 5-8 parts of saflufenacil, 13-20 parts of a 48% flumioxazin suspending agent, 25-30 parts of a 30% oxadiargyl suspending agent, 20-30 parts of acetochlor, 3.5-4.2 parts of carbopol, 1.2-1.8 parts of a disintegrating agent, 1.6-2.2 parts of an adhesive, 1.4-2.0 parts of a wetting agent and 2.2-2.7 parts of a dispersing agent. The metamitron, the pendimethalin suspending agent, the acetochlor and the modified trifluralin are used as raw materials for preparing the herbicide, so that effective components in the herbicide are absorbedby hypocotyls of field broadleaf weeds, and meanwhile, cotyledons can well absorb the effective components in the herbicide, so that the weeding effect of the herbicide is improved; moreover, the modified trifluralin has good light stability, so that the drug effect of the trifluralin is prolonged.

The invention relates to the technical field of herbicides, and discloses a herbicide composition containing refined glufosinate-ammonium, and the herbicide composition containing refined glufosinate-ammonium comprises an effective component and a pesticide adjuvant, the effective components comprise fine glufosinate-ammonium, flumioxazin and haloxyfop-R-methyl; the mass ratio of the fine glufosinate-ammonium to the flumioxazin to the haloxyfop-R-methyl is (10-15): (0.5-2): (1.5-4). According to the herbicide composition, the fine glufosinate-ammonium, the flumioxazin and the haloxyfop-R-methyl are jointly used, the synergistic effect is achieved, gramineous weeds and broadleaf weeds can be effectively removed, the herbicide composition is wide in weeding spectrum, long in lasting period and small in application amount, and pollution to the environment is reduced.

The invention provides a ternary weeding composition. Active ingredients of the ternary weeding composition comprise an active ingredient A, an active ingredient B and an active ingredient C. The active ingredient A is glyphosate or glufosinate-ammonium, the active ingredient B is flumioxazin, and the active ingredient C is oxyfluorfen. The mass ratio of the active component A to the active component B to the active component C is 1-100: 0.1-30: 0.1-20. The weeding composition disclosed by the invention can be used for preventing and removing weeds in uncultivated areas and has a remarkable synergistic effect.

The invention discloses a weeding composition containing benzobicyclon and triaziflam and an application of the weeding composition. The weeding composition uses the benzobicyclon and the triaziflam as main active ingredients, and the mass ratio of the triaziflam to the benzobicyclon ranges from 1:60 to 60:1. The weeding composition disclosed by the invention can be applied to paddy field weeding, and especially has a significant effect when being applied to preventing and removing grass families and broadleaf weeds in a paddy field. Compared with a single agent, the weeding composition disclosed by the invention can delay the resistance of weeds, has a broad weeding spectrum and a long duration, and is safe for paddy rice and succession crops on the premise of improving the drug effect.

An herbicidal composition containing (a) benfluralin and (b) either diflufenican, flufenacet or prosulfocarb provides synergistic control of selected weeds in cereals.

The invention provides a multi-element mixed composition water dispersible granule, the composition comprises effective components of flumioxazin, fluoroglycofen-ethyl and glufosinate-ammonium, the mass percentage ratio of the flumioxazin to the fluoroglycofen-ethyl to the glufosinate-ammonium is (2-10): (1-6): (60-75), and the composition further comprises a wetting dispersant, a disintegrating agent, an adhesive and a carrier, the components are mixed evenly and pulverized by ultrafine airflow to obtain ultrafine powder for later use, then are subjected to high-speed mixing valve granulation and dried at 50-80 DEG C, and the water dispersible granule is obtained after sieving, wherein the composition with the mixture ratio of 7:4:70 has the best efficacy, the weed control map can be effectively expanded and the herbicide herbicide killing activity can be improved, meanwhile, the dosage of the herbicide is remarkably reduced, the resistance of weeds to a single weeding agent is reduced, the resistance of the weeds to the single weeding agent is delayed, the control effect on resistant weeds is improved, the service life of the agent is prolonged, and the environmental pressure is reduced.

The invention relates to a weeding composition safe to cotton and afterreap crops. The weeding composition is reasonable in formula and low in use cost, and has a synergistic control effect on a certain target. The weeding composition at least comprises three active components including metamitron, pendimethalin and flumioxazin in a mass ratio of (1-100): (1-100): (1-100), preferably (1-10): (1-10): (1-10). The weeding composition can be made into preparation forms including a suspending agent, a suspoemulsion, a dispersible oil suspending agent, wettable powder, a water dispersible granule, agranule and a microcapsule suspension-suspending agent according to a method known by technicians in the art, and the weight percentage content of the active components in the preparation is 1%-80%,preferably 5%-70%. The composition is used for preventing and removing weeds in cotton fields.

The invention discloses a weeding compound containing pyraclonil and triaziflam and application thereof. Pyraclonil and triaziflam are served as the main effective constituents of the weeding compound. The mass ratio of pyraclonil to triaziflam is at (1:60) to (60:1). The weeding compound provided by the invention can be used for weeding the paddy field and especially has an obvious effect in removing graminaceous, cyperaceae and broad leaf weeds from the paddy field. Compared with a single dosage, the weeding compound provided by the invention has the advantages of capability of delaying weed resistance, broad weeding spectrum, long lasting period and safety to paddy and after-reap crops under the condition of promoted pesticide effect.