264 results about "Cyperaceae" patented technology

The invention discloses herbicide effervescent tablets containing halosulfuronmethyl and pretilachlor and a preparation method thereof. The active ingredients of the herbicide effervescent tablets comprise 0.5 to 5 weight percent of halosulfuronmethyl, 10 to 25 percent of pretilachlor and the balance of an assistant. The effervescent tablets can be prepared by a direct dry-process tabletting method or a method of wet-process granulating first and then tabletting; the direct dry-process tabletting method comprises mechanically grinding the assistant, uniformly mixing with the assistant and directly tabletting the two raw material medicines; and the method of wet-process granulating first and then tabletting comprises drying the two raw material medicines and the ground assistant, mixing, adhering, granulating to prepare an acid soft material and an alkaline soft material and tabletting. The prepared effervescent tablets are new herbicide preparation products which are environment-friendly and convenient to use. The herbicide effervescent tablets can effectively prevent and control various weeds such as weed from broad leave family, grass family, cyperaceae family and the like in rice shooting fields and transplanting fields.

The invention relates to a herbicide composition for preventing and eradicating weeds in farmlands and applications thereof, and particularly relates to a herbicide which is used for preventing and eradicating gramineae weeds, broadleaf weeds and cyperaceae weeds in rice fields. The herbicide composition is a binary herbicide mixture employing penoxsulam and halosulfuron-methyl as active ingredients, wherein the weight ratio of penoxsulam to halosulfuron-methyl is 1:30-15:1. The herbicide composition can be made into any preparation allowable in agriculture. The herbicide composition is used for preventing and eradicating weeds in the rice fields, has reasonable components, with the prevention effect being superior to the activity of each component applied separately, enlarges weed preventing and eradicating spectrum, reduces preventing and eradicating cost, slows down the generation of weed resistance, has good security for crops, and fits to the security requirement of pesticide preparations.

The invention belongs to the field of pesticides, and relates to a mixed herbicide composition containing bispyribac-sodium and cyhalofop-butyl. The herbicide composition adopts the bispyribac-sodium and the cyhalofop-butyl as main active components, the weight ratio of the bispyribac-sodium and the cyhalofop-butyl is 1 to 99:1 to 99, and the herbicide composition is mainly applied to postemergence weeding in paddy fields, and particularly can prevent and get rid of annual gramineous weeds, broadleaf weeds and cyperaceous weeds in paddy fields. Compared with single agents, the herbicide composition delays the resistance of weeds under the premise that the pesticide effect is enhanced, has a broad weeding spectrum and long persistence period and is safe for rice and next-stubble crops.

The invention relates to a herbicidal combination containing flumetsulam. The herbicidal combination is characterized in that: the active ingredients of the herbicidal combination are component A and component B; the component A is the flumetsulam; and the component B is chosen from one or more of the following compounds: acetochlor, butachlor, alachlor, propisochlor, metolachlor, s-metolachlor, propachlor, ethachlor, napropamide, diphenamide, ethaprochlor, dimethenamid, high-effective dimethenamid, flufenacet, metazachlor, allidochlor, pethoxamid, prynachlor and propyzamide. The herbicidal combination can effectively decrease the dosage of the active ingredients per mu, broaden the weed control spectrum of each single agent and effectively control annual or perennial gramineous, broadleaf and cyperaceous weeds in the fields of peanut, soybean, rape, cotton, wheat, potato and other crops, such as green bristlegrass, crabgrass, barnyard grass, Asian sprangletop, speedwell, cocklebur, night shade, redroot amaranth, goosefoot, Indian mallow, cleavers and datura.

The invention discloses a herbicide composition for a paddy field. The composition comprises a component (a), a component (b) and a component (c), wherein (a) is penoxsulam, (b) is bispyribac-sodium, and (c) is at least one of fenoxaprop-p-ethyl, fluroxypyr and carfentrazone-ethyl; and the weight ratio of the component (a) to the component (b) to the component (c) is 1:1-70:1-70. The composition preparation of the invention has the characteristics of efficient weeding effect, wide weeding spectrum, low residue, safety for crops, low cost, and good prevention and control effects on broadleaf weed, cyperaceae weed and some perennial weeds, and can basically control the harm of the whole season seeds to the paddy field after one-time application.

An Aids and associated conditions related to Aids treating compositions is disclosed. The compositions comprise: a medicament selected from an extract of at least one of the following plant families: Apocynaceae (Pleioscarpa Bicarpellata); Annonaceae (Cleistopholis Patens); Dichapetalaceae (Dichapetehan Madagasca Riense); Annoceae (Uvaristrum Pierreanum); Cynocynaceae (Strophantus Gratus); Asclepiadaceae (Gongronema Latifolium); Combretaceae (Combretum Racemosum); Apocynaceae (Alostonia Boonei); Amaranthaceae (Altemanthera Pungens); Aroceae (Anchomanes Differmis); Cyperaceae (Seleria Voivinil); Anacardiaceae (Lannea Acida); Bignoniaceae (Kigelia Africana); Bombacaceae (Ceiba Pentanota); Anarcardiaceae (Antrocaryon Micraster); Bombacaceae (Bombax Bounopozense): Anarcardiaceae (Spondias Mombin); Caricaceae (Carica Papaya); a glyceryl ester of any of the foregoing extracts; a saponin of any of the foregoing extracts; an alkaloid of any of the foregoing extracts; a protein of any of the foregoing extracts; a fat of any of the foregoing extracts; a sugar of any of the foregoing extracts; and any mixture of any of the foregoing.

The invention discloses a comprehensive weeding composition of a paddy field. The weeding composition contains active ingredients such as penoxsulam, pyrazosulfuron-ethyl and pretilachlor, wherein the mass ratio of penoxsulam to pyrazosulfuron-ethyl to pretilachlor is (1.2-3): (0.5-2): (20-35). The comprehensive weeding composition can be used for the pre-emergence treatment, and also can be used for the post-emergence treatment; moreover, a good effect for removing and controlling the gramineae weeds, broadleaf weeds and cyperaceae weeds is good. The weeding composition is safe to the paddy rice, wide in herbicide controlling spectrum, small in consumption amount and low in production cost.

The invention discloses a herbicide for preventing and removing grassy weeds, broadleaf weeds and cyperaceae weeds in rice paddy fields, which is a binary herbicide mixture taking cinosulfuron and penoxsulam as active ingredients, and the weight ration of the cinosulfuron to the penoxsulam in the composition is (32:1)-(1:32), while (8:1)-(1:8) is preferential. The compound herbicide can be prepared into water dispersible granules, wettable powder, powder, granules, suspension and dispersible oil suspension. The herbicide can be used for preventing and removing the weeds in the rice paddy fields and has reasonable components, and the prevention effect is better than the activity when independently applying each component, thereby expanding the weed preventing and removing spectrum, reducing the preventing and removing cost, retarding the production of weed resistance, having good safety for crops and being in line with the requirements on the safety of pesticide preparations.

The invention provides a postemergence cassava field herbicide with mesotrion as an active component, which comprises the mesotrion as the active component, and after being added with suitable adjuvant and carrier, the postemergence cassava field herbicide can be prepared into various agent forms such as suspension, water-dispersible granules, wettable powder, aerosol, slow-release agent, granules, emulsion in water, microemulsion or effervescent tablets. As selective herbicide for cassava fields, the herbicide cannot cause chemical resistance, has a good control effect on gramineous weeds, latifolious weeds and cyperaceae weeds, can comprehensively prevent and eliminate a variety of weeds in cassava fields, is safe and low in toxicity and residue for cassava, is easy to popularize, decreases labor intensity, and reduces the production cost.

The invention relates to a weeding composition, and especially relates to the weeding composition comprising propyrisulfuron and bentazone, use of the weeding composition, and a corresponding weed control method. Active ingredients of the weeding composition comprise the propyrisulfuron and the bentazone, wherein a weight ratio of the propyrisulfuron to the bentazone is 200:1 to 1:200. The weeding composition is used for control of gramineae weeds, broadleaf weeds and cyperaceae weeds in crop growth environment. According to the invention, the weeding composition is prepared by complex formulation of herbicides comprising the propyrisulfuron and the bentazone. Because the propyrisulfuron has control capability to weeds that show resistance to known sulfonylurea herbicides, and the weeding composition is prepared by binary complex formulation of the two herbicides, the weeding composition has an enhanced effect. Compared with single use of one herbicide, a weed killing spectrum is enlarged and control effect on the weeds is significantly enhanced.

The invention discloses a hybrid herbicide containing Cinosulfuron, Bispyribac-sodium and cinmethylin. The herbicide takes the Cinosulfuron, the Bispyribac-sodium and the cinmethylin as main effective ingredients with the mass ratio of (0.1-80): (0.1-80): (0.1-80). The hybrid herbicide disclosed by the invention has obvious effect when being applied to the paddy field weeding, in particular to preventing and removing of various grass family weeds, cyperaceae weed family weeds and broad leaf family weeds in the paddy field. On the premise of improving pesticide effect, the herbicide can delay weed resistance, has the advantages of wide weeding spectrum and long effect lasting period if being compared with a single agent and is safe to the paddy and next batch of crop.

The invention relates to a bioherbicide composition and application thereof and belongs to the field of agricultural chemicals. The bioherbicide composition is missible oil, wettable powder, emulsion in water and water dispersible granules prepared from active ingredients including nonanoic acid and acetic acid, minor ingredients including a solvent, a carrier and a surfactant as well as other additives. By weight, the active ingredients account for 10-97% of the bioherbicide composition, the surfactant accounts for 1-8% of the bioherbicide composition, and the carrier and the other additives account for 2-80% of the bioherbicide composition. The bioherbicide composition can be used for directed spraying of urban courtyards and crop fields to control and kill gramineae, cyperaceae and broadleaf weeds and is wide in weeding spectrum, quick to act, high in control efficiency, safe and the like.

The invention relates to the field of pesticide preparations and discloses a weeding composition, which is made of flucetosulfuron and metamifop in a weight ratio of 1:3-6. The weeding composition can be made into emulsifiable solution, wettable powder, water dispersible granules and the like with conventional auxiliaries and carriers / solvents by the existing methods. The weeding composition can be used for removing most of paddy field weeds, effect of controlling gramineous weeds such as barnyard grass and Leptochloa chinensis, and cyperaceae weeds such as Monochoria vaginalis and Cyperus difformis can be improved, consumption of effective ingredients is lowered, service cost is low, and the weeding composition has the advantages of long application period, long lasting period, safety to succeeding crop and the like.

The invention provides a weeding composition. Active components of the weeding composition consist of a component A and a component B, wherein the component A is halosulfuron-methyl and the component B is other herbicide; the weight ratio of the component A to the component B is 1:1 to 1:100. The invention also relates to the application of the weeding composition to prevention and control of the growth of undesired plants such as broadleaf weed, sedge weed or grassy weed, in particular to the application of the weeding composition to prevention and control of the growth of undesired plants such as echinolchloacrus-galli, leptochloa chinensis, yellow nut sedge, cyperus difformis L, Solanum nigrum L, abutilon, acalypha australis, Scirpus juncoides Roxb and Alisma L in cereal crops. The invention also provides a method for preventing and controlling the growth of the undesired plants. The method comprises the following steps: contacting the undesired plants or growth places thereof with the weeding composition with weeding effective quantity, or applying the weeding composition with weeding effective quantity to soil or water to prevent germination or growth of the undesired plant.

The invention belongs to the technical field of pesticides and discloses a wettable powder containing penoxsulam, mefenacet and pyrazosulfuron-ethyl. The wettable powder is prepared with the penoxsulam, the mefenacet and the pyrazosulfuron-ethyl as main active components according to the mass ratio of 0.1-40:0.1-80:0.1-60. The total mass percentage content of the penoxsulam, the mefenacet and the pyrazosulfuron-ethyl in the wettable powder is 1-80%. The aqueous agent also includes 1-20% of a dispersing agent, 1-10% of a wetting agent and the balanced being filling materials. The invention also discloses an application of the wettable powder in prevention and removal of weeds in paddy fields. By means of combination of the herbicides, the wettable powder is enlarged in weeding spectrum and is improved in weeding effects, has an outstanding preventing and treating effects on gramineous weeds, cyperaceae weeds and broadleaved weeds, is quick in effects, is long in lasting period, can delay drug resistance, is completely in weeding, is low in residue, is low in toxicity and is safe and environmental-protective.

The invention relates to a weeding composition, and especially relates to the weeding composition containing propyrisulfuron and bispyribac sodium, use of the weeding composition and a corresponding weed control method. Active ingredients of the weeding composition comprise the propyrisulfuron and the bispyribac sodium, wherein a ratio of the propyrisulfuron to the bispyribac sodium, by weight percentage, is ranged from 100:1 to 1:100. The weeding composition is used for control of gramineae weeds, broadleaf weeds and cyperaceae weeds in crop growth environment. According to the invention, the weeding composition is prepared through complex formulation of herbicides comprising the propyrisulfuron and the bispyribac sodium. Because the propyrisulfuron has prevention and control ability to weeds that show resistance to known sulfonylurea herbicides, and the weeding composition is prepared by binary complex formulation of the two herbicides, the weeding composition has an enhanced effect. The weeding composition shows a significantly enhanced control effect on the weeds in the crop growth environment, compared with single use of one herbicide.

The invention discloses a herbicide composition containing oxaziclomefone and metamifop. The herbicide composition comprises the active ingredients of oxaziclomefone and metamifop; the mass ratio of oxaziclomefone to metamifop is 19:1 to 1:19, and is preferably 4:1 to 1:4. The accumulation quantity of the oxaziclomefone and the metamifop is 0.1 percent to 80 percent of the total weight of the composition, and is preferably 2 percent to 20 percent. The herbicide composition has the advantages that the ingredients are reasonable; the prevention effect is superior to the activity of each ingredient during the single application; the synergistic effect is achieved; the weed prevention and control spectrum is expanded; the paddy field gramineae weed, cyperaceae weed and broadleaf weed can be prevented and removed through once medication; the number of medication times is reduced; the prevention and control cost is reduced; the generation of the weed resistance is retarded; the safety on the crops is high; the safety requirements of the pesticide preparation are met.

The invention provides a herbicide prepared by binary combination of oxyfluorfen and pendimethalin and preparation method thereof. The herbicide consists of the following components in percentage by mass: 3 to 10 percent of oxyfluorfen, 10 to 30 percent of pendimethalin, 5 to 15 percent of synergist, 8 to 20 percent of emulsifier and the balance of solvent. The preparation method comprises the following steps of: mixing the oxyfluorfen and the solvent in the mass ratio and stirring the mixture; mixing the pendimethalin and the solvent and stirring the mixture; mixing the obtained solution; adding the emulsifier, the synergist and the obtained mixture in a reaction kettle, and stirring the mixture in the reaction kettle for 10 to 15 minutes; adding the remained solvent into the mixture, and stirring the mixture for 20 to 30 minutes; and performing standing, filtering, filling and sampling analysis to obtain the finished product. The herbicide is a high-efficiency contact type broad-spectrum herbicide; when the herbicide is used for controlling annual gramineae and cyperaceae monocotylous and dicotyledons weed,, such as soy beans, wheat, potatoes, cotton, tobacco, vegetables and melon-fruit plants, in tea gardens and orchards, the effect is produced in 2 to 3 hours, and the weed is died in 3 to 5 days, and after one time of pesticide application, the harmful weed can be removed in the whole growing periods of plants. The dosage of the herbicide is 25 to 35 grams per mu, and the application cost of the herbicide is 57 to 43 percent lower than the sole application cost of the oxyfluorfen or the pendimethalin.

The invention relates to a synergistic weeding composition containing fluroxypyr. The composition is a ternary compound herbicide composition using fluroxypyr, carfentrazone-ethyl and MPCA sodium as active components, wherein a weight ratio of fluroxypyr to carfentrazone-ethyl to MPCA sodium is 1-60: 1-40: 10-80, and the composition may be prepared to form a wettable powder, a water-dispersible granule, an oil flowable concentrate, a suspoemulsion, a micron emulsion and an emulsion in water. The synergistic weeding composition provided by the invention is used for preventing and treating broad-leaf weeds, grassy weeds and cyperaceae weeds in corn fields and wheat fields.

The invention belongs to the field of pesticides, and relates to a mixed herbicide composition containing bispyribac-sodium and quinclorac. The herbicide composition adopts the bispyribac-sodium and the quinclorac as main active components, the weight ratio of the bispyribac-sodium and the quinclorac is 1 to 99:1 to 99, and different surfactants, thickening agents, solvents, solid fillers or the like can be added to the herbicide composition to become a variety of agents, such as emulsifiable concentrate, suspending agents, water-dispersible granules, wettable powder and the like. The herbicide composition can prevent and get rid of annual gramineous weeds, broadleaf weeds and cyperaceous weeds in paddy fields, and compared with single agents, the herbicide composition delays the resistance of weeds under the premise that the pesticide effect is enhanced, has a broad weeding spectrum and long persistence, is safe for rice and next-stubble crops, and therefore is an ideal paddy field herbicide.

The invention relates to a paddy field weeding composition and application thereof. The weeding composition contains three effective components of, by mass, 1 part of orthosulfamuron, 0.6-2.4 parts of oxadiargyl and 5-20 parts of prometryn, and the sum of mass percents of the three effective components ranges from 2% to 75%. Compared with a single dosage or a binary compound composition which has the same effective components, the synergistic effect of the weeding composition is obvious, the weeding spectrum is effectively extended, the dosage of the effective components is reduced simultaneously, and the safety to crops is improved. The weeding composition is suitable for preventing and killing most graminaceous, broadleaf and cyperaceae weeds in a paddy field and specially has the control effect on duckweed, spirogyra, green algae which cause severe damage in paddy field of partial areas, and the weeding composition is safe to rice.

The invention belongs to the technical field of pesticides, and provides a mixed herbicide comprising topramezone and metolachlor and an application thereof. The mixed herbicide takes topramezone and metolachlor as main effective components, wherein the mass ratio of topramezone to metolachlor is 1:15 to 8:1. The mixed herbicide has a significant effect on application in corn field weeding, especially application in prevention and removal of various gramineae, cyperaceae and broadleaf weeds which come up out of the ground or are about to come up out of the ground. Compared with single agents, the mixed herbicide delays the weed resistance in the premise of improving the pesticide effect, has the advantages of wide weeding spectrum and long effective duration, and is safe to corn.

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 belongs to the technical field of pesticide, disclosing a hybrid herbicide containing Cinosulfuron, molinate and cinmethylin and an application of the hybrid herbicide. The hybrid herbicide takes the Cinosulfuron, the molinate and the cinmethylin as main effective ingredients with the mass ratio of (0.1-80): (0.1-80): (0.1-80). The hybrid herbicide disclosed by the invention has obvious effect when being applied to the paddy field weeding, in particular to preventing and removing of various grass family weeds, cyperaceae weed family weeds and broad leaf family weeds in the paddy field. On the premise of improving pesticide effect, the hybrid herbicide can delay weed resistance, has the advantages of wide weeding spectrum and long effect lasting period if being compared witha single agent and is safe to the paddy and next batch of crop.

The invention belongs to the field of the pesticide, relating to a hybrid weeding composite containing Bispyribac-sodium and oxaziclomefone. The hybrid weeding composite takes the Bispyribac-sodium and the oxaziclomefone as main effective ingredients with the mass ratio of (1-99):(1-99). In the weeding composite disclosed by the invention, different surfactants, thickeners, solvents or solid fillers and the like can be added to be processed into various dosage forms, such as missible oil, a suspending agent, water dispersible granules, wettable powder and the like. The weeding composite can be used for preventing and removing paddy field grass family weeds, broad leaf weeds and cyperaceae weeds. On the premise of improving pesticide effect, the weeding composite can delay weed resistance, has the advantages of wide weeding spectrum and long effect lasting period if being compared with a single agent, is safe to the paddy and next batch of crop and is an ideal paddy field herbicide.

The invention provides a compound herbicide composition. The compound herbicide composition is prepared from a first active ingredient, a second active ingredient and a third active ingredient, wherein the first active ingredient is penoxsulam; the second active ingredient is cyhalofop-butyl; the third active ingredient is 2-methyl-4-chlorophenoxy acetic acid or a derivative thereof; and the weight percent ratio of the three active ingredients is (0.1-40):(1-100):(1-100). The compound herbicide composition has the beneficial effects that by carrying out ternary compounding on the penoxsulam, cyhalofop-butyl and 2-methyl-4-chlorophenoxy acetic acid or the derivative thereof, the new composition is applied to controlling grassy weeds, broadleaf weeds and cyperaceae weeds in the rice fields, has an ideal control effect, especially has an obviously improved control effect on barnyard grass, rice weeds, xeromorphic polygonum amphibium, waterpepper, eclipta prostrate, ammannia arenarid H., crab grass, scirpus yagara, eleocharis acicularis, eleusine indica, monochoria korsakowii, paspalum distichum, moleplant seed, cyperus difformis, scirpus planiculmis and sagittaria trifolia, also can solve the problem of the dosage for controlling some novel weeds in the fields in which penoxsulam and cyhalofop-butyl are used perennially and has certain effects on rice production increase.

The invention relates to herbicide, in particular to a weeding composition containing pyriminobac-methyl, penoxsulam and metamifop and a preparation and application thereof. The weeding composition containing the pyriminobac-methyl, the penoxsulam and the metamifop contains effective constituents of the pyriminobac-methyl, the penoxsulam and the metamifop, wherein the mass ratio of the pyriminobac-methyl to the penoxsulam to the metamifop is (0.1-50);(0.1-50):(0.1-70). The three effective constituents have no cross resistance. By mixing the effective constituents, the effect of weeding can be effectively strengthened, the prevention and treatment spectrum can be enlarged, a plurality of weeds including poaceae, cyperaceae and broad leaf weeds can be killed widely, the fast-acting property and the persistence can be improved, the times for spraying in a growth period are reduced, and the pyriminobac-methyl, the penoxsulam and the metamifop are very important for the delay of generation of medicament resistance. Risks of occurrence of phytotoxicity are reduced greatly due to the fact that the applied concentration of a single medicament is reduced. The requirements that one medicament has multiple purposes in agricultural production, the times for spraying is reduced, and the risks of the phytotoxicity are reduced are met.

The invention discloses a herbicide composition for a corn field. The herbicide composition comprises sulfentrazone, atrazine and isoxadifen-ethyl (or salt of isoxadifen-ethyl), wherein the weight ratio of sulfentrazone to atrazine to isoxadifen-ethyl is (1-50) to (1-50) to (1-25). The herbicide composition can be prepared into the following preparations: wettable powder, suspending agent, dispersed oil suspending agent, microemulsion, emulsion in water or water dispersible granules. The herbicide composition has a remarkable synergistic effect, and can be used for controlling graminaceous weeds, broad-leaved weeds and cyperaceae weeds including crab grass, green bristlegrass, eleusine indica, chenopodium album, dayflower, sonchus brachyotus, cephalanoplos seyetum, purslane, abutilon and the like which are difficult to control; after the herbicide composition is used, the effectiveness of all single preparations can be improved, the drug resistance of the weeds can be obviously delayed, the usage amount of the pesticide is reduced, and the agricultural cost is lowered. Isoxadifen-ethyl (or salt of isoxadifen-ethyl) is fed into the herbicide composition, so that the herbicide composition is safe for crop corns and is also used for sweet corns.

The invention discloses a propanil, cyhalofop butyl and 2-methyl-4-chlorophenoxy acetic acid-containing pesticide composition and application thereof, and the pesticide composition comprises the active components of propanil, cyhalofop butyl and 2-methyl-4-chlorophenoxy acetic acid in the mass ratio of 50-350:2-20:1-150. The pesticide composition, showing obvious synergistic effect on the ratio range, reduces the pesticide dosage, reduces the pesticide dosing number, reduces the pesticide dosing cost, reduces the adverse effects of pesticides on ecological environment, expands the herbicidal spectrum, can solve various weed problems by one-time use, makes up the defects and limitations when using a single agent, extends the agent service life, has the vital significance to the comprehensive treatment of weed resistance, is fast in drug efficacy, long in period of preserving effect and low in use cost, and can be used to control gramineous weeds, broadleaf weeds and sedge weeds in rice fields.