CN107027797A - A kind of herbicidal composition of Han oxaziclomefones and halosulfuronmethyl - Google Patents

Abstract

The present invention provides the herbicidal composition of a kind of Han oxaziclomefones and halosulfuronmethyl, its active component Wei oxaziclomefones and halosulfuronmethyl, and the weight ratio of Suo Shu oxaziclomefones and halosulfuronmethyl is（8：1）~（1：8）.Instant component is reasonable, activity when preventive effect is administered alone better than each component, with synergistic effect, expand control of weeds spectrum, a dispenser and prevent and kill off rice terrace grass family, Cyperaceae and broad leaved weed, spraying times are reduced, cost accounting is reduced, slows down the generation of Weed Resistance, it is good to crop safety, meet the security requirement of pesticidal preparations.The present invention is applied to prevent and kill off rice seedling bed, direct seading rice field, rice transplanting rice terrace, transplanting rice field and corn, the annual grassy weeds of wheat paddock and barnyard grass, and high to Security of rice.

Description

A kind of herbicidal composition of Han oxaziclomefones and halosulfuronmethyl

Technical field

The present invention relates to pesticide herbicide, and in particular to the herbicidal composition of a kind of Han oxaziclomefones and halosulfuronmethyl.

Background technology

From or so nineteen fifty large-area applications 2, since 4- drops, the chlorine of 2 first 4 prevent and kill off rice terrace broad leaved weed, rice terrace herbicide Kind is developed rapidly, and kind is updated, and has successively emerged in large numbers diphenyl ether, thiocarbamates, amide-type, quinoline carboxylic acid The herbicides such as class, sulfonylurea, form the more perfect Chemical Weeding System for being adapted to paddy rice different planting, turn into Indispensable and highly important well stimulation in Rice Production.

But, as numerous herbicide kinds are persistently used in rice terrace large area, the problem of also producing many：1. Weed Resistance It is prominent, wherein the resistance of propanil, halosulfuronmethyl, butachlor, benthiocarb is more protruded with barnyard grass, recently, difformed galingale herb, firefly The common weeds such as the Cyperaceaes such as Lin, angustifolia arrowhead herb, Monochoria korsakowii, Monochoria vaginalis, Pontederiaceae, Alismataceae are produced to sulfonylurea herbicide Resistance, makes weeding problem more complicated.2. perennial weeds harm turns into major issue, particularly Cyperaceae perennial weeds more For protrusion.3. advanced age barnyard grass and the problem of preventing and kill off of moleplant seed need to solve.4. the herbicide controlling spectrum of herbicide kind needs to be expanded, and extends Soil prevents and kill off the lasting phase of medicament.5. the demand for wide spectrum, selectivity herbicide kind strong, easy to use is more urgent.

Oxaziclomefone English common name oxaziclomefone, chemical name 3 [1- (3,5- dichlorophenyl)-propyl group] -3,4- bis- Hydrogen -6- methyl -5- phenyl -2H-1,3- zinc oxalates -4-one.Oxaziclomefone belongs to organic heterocyclic class, is inner sucting conduction type paddy rice Field herbicidal, mainly by the root of weeds and cauline leaf basal sink.Weeds contact leaves and stemses chlorosis after medicament, stopped growing, directly It is extremely withered.Oxaziclomefone mainly prevents and kill off rice terrace annual gramineous weed, nutgrass flatsedge and some broad leaved weeds etc., including： Difformed galingale herb, rice barnyard grass, barnyard grass, moleplant seed, waterwort, needle spikesedge herb, Procumbent Falsepimpernel, Monochoria vaginalis and mexicana etc..It is used for paddy rice after bud Tian Hou, medicament is mainly by the root system and cauline leaf basal sink of weeds, generally within medication two weeks after, weeds cauline leaf chlorisis, hair Red, necrosis is final dead.Lasting period, in the whole season of growth, preventing and kill off barnyard grass only needed medication 1 time up to 50 days.

Halosulfuronmethyl English common name Chlorimuron ethyl, molecular formula C13H15ClN6O7S, chemical name (R) -2- { (the chloro- 1,3- benzoxazoles -2- bases oxygen of 4-) phenoxy group } -2 '-fluoro- N- methyl propionanilide.Halosulfuronmethyl (Chlorimuron ethyl) is a kind of sulfonylurea herbicide, and its mechanism of action is by suppressing acetolactate synthase (actetolactate synthase, ALS) plays a role, the latter participate in side chain amino acid include valine, leucine and The synthesis of isoleucine, so as to cause some row oxidative stress, and then reduces the formation of root nodule.Compared with other herbicides, chlorine Ethyl methyl has more preferable effect.Halosulfuronmethyl (Chlorimuron ethyl) adapts to crop widely, available for small Wheat, corn, sorghum, paddy rice, sugarcane, tomato, sweet potato, dry beans, lawn and ornamental crops, available for premises, while its is right Malignant weed rhizome of nutgrass flatsedge special efficacy, and part broad leaved weed can be prevented and kill off.Therefore application prospect and promotional value are very high, and future will There are more producers to pay close attention to and apply for registration of.

Barnyard grass, a thousand pieces of gold special efficacy of the , oxaziclomefones to rice field, but imitated to the wealthy weeds in part, nutgrass flatsedge in actual use It is really not satisfactory；Halosulfuronmethyl can be fabulous prevent and kill off most of weeds, and unlike most of such herbicides, chlorine pyrrole is phonetic Sulphur is grand to rice safety, can effectively prevent and kill off rice terrace main weeds, such as barnyard grass, moleplant seed, lady's-grass and eleusine indica are mainly used in moving Plant and direct sowing rice field weeding.It can also be used for wheat, corn, sorghum, paddy rice, sugarcane, tomato, sweet potato, dry beans, lawn and view and admire work Thing.Therefore, oxaziclomefone, halosulfuronmethyl are carried out rational mixture by inventor, find there is notable synergy, expand control of weeds Spectrum, a dispenser prevent and kill off rice terrace grass family, Cyperaceae and broad leaved weed, reduce spraying times, reduce the effect of cost accounting, Lawn and ornamental crops are can also be used for, available for premises.

The content of the invention

It is an object of the invention to provide a kind of component rationally, herbicidal spectrum is wide, and preventive effect is good, and drug cost is low, is not likely to produce anti-medicine The herbicidal composition of property Han oxaziclomefones and halosulfuronmethyl.

It is used to prevent and kill off rice seedling bed, direct seading rice field, rice transplanting paddy rice it is another object of the present invention to provide above-mentioned composition Purposes in field and transplanting rice field grassy weed, broad leaved weed and sedge weed.

In order to overcome the defect of existing unitary agent, the technical scheme is that so solve：

The herbicidal composition of a kind of Han oxaziclomefones and halosulfuronmethyl, its active component Wei oxaziclomefones and the phonetic sulphur of chlorine pyrrole Grand, the weight ratio of Suo Shu oxaziclomefones and halosulfuronmethyl is (8：1)~(1：8).

The weight ratio of further scheme, Suo Shu oxaziclomefones and halosulfuronmethyl is (3.5：1)~(1：3.5).

The weight of further scheme, Suo Shu oxaziclomefones and halosulfuronmethyl and for the composition total weight 0.1%~ 80%.

The weight of further scheme, Suo Shu oxaziclomefones and halosulfuronmethyl and for the composition total weight 2%~ 20%.

Further scheme, the formulation of the composition is water dispersible granules, wettable powder, soluble powder, granule, suspension Agent, dispersible oil-suspending agent.

The herbicidal composition of the present invention is preventing and kill off rice seedling bed, direct seading rice field, rice transplanting rice terrace, transplanting rice field and jade The application of rice, the annual grassy weeds of wheat paddock and barnyard grass.

For water dispersible granules, those skilled in the art are very familiar with completing the present invention using corresponding auxiliary agent.Dispersant is selected From polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, APES, EO/PO block polyethers；Wetting agent is selected From alkyl sulfate, alkylsulfonate, naphthalene sulfonate, sodium lignin sulfonate, AEO, alkylphenol-polyethenoxy Ether；Disintegrant is selected from ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, sucrose, glucose, carboxymethyl cellulose, solvable shallow lake Powder, polyvinylpyrrolidone；Binding agent is selected from polyvinyl alcohol, soluble starch, dextrin, xanthans, carboxymethyl (ethyl) fiber Plain class；Filler is selected from diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, clay.

To wettable powder, workable auxiliary agent has：Dispersant is selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate； Wetting agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate；Filler is selected from ammonium sulfate, urea, sucrose, glucose, diatom Soil, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, clay.

To soluble powder, workable filler is selected from diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, pottery Soil, clay.

To granule, workable auxiliary agent has：Carrier is selected from ammonium sulfate, urea, potassium dihydrogen phosphate, calcium superphosphate, diatomite, height Ridge soil, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, clay, boccaro rock dust, stone coal slag, clay, sand, common brick, saw End, starch；Binding agent is selected from paraffin, gypsum, polyvinylpyrrolidone, carboxymethyl (ethyl) cellulose, hydroxypropyl methyl fiber Element, PVP, polyacrylamide, polyethylene glycol, polyvinyl alcohol；Coloring agent is iron oxide.

To suspending agent, workable auxiliary agent has：Dispersant be selected from polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE 2425 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt)；Emulsifying agent such as Nongru-700 # (common names：Alkane Base fluosite APEO), agriculture breast 2201, this disk -60# (common names：Sorbitan monostearate), emulsifying agent T-60 (common names：Sorbitan monostearate APEO), agriculture breast 1601# (common names：Phenethyl phenol polyoxy second Alkene polyethenoxy ether), TERSPERSE 4894 (Huntsman Corporation of U.S. product)；Wetting agent is selected from alkylphenol-polyethenoxy base ether Formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyoxyethylene groups ether phosphate, alkylsurfuric acid Salt, alkylsulfonate, naphthalene sulfonate, TERSPSE 2500 (Huntsman Corporation of U.S. product)；Thickener is selected from xanthans, poly- second Enol, bentonite, aluminium-magnesium silicate；Preservative is selected from formaldehyde, benzoic acid, sodium benzoate；Defoamer is organic silicon defoamer；It is anti- Freeze agent and be selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts (such as sodium chloride).

To dispersible oil-suspending agent, workable auxiliary agent has：Dispersant is selected from polycarboxylate, lignosulfonates, alkyl Naphthalene sulfonate, TERSPERSE 2425；Emulsifying agent is selected from the serial emulsifying agents (BY-110, BY-125, BY-140) of BY, agriculture breast 700#, agriculture breast 2201, this disk -60#, Tween-60 #, agriculture breast 1601#, TERSPERSE 4894；Wetting agent is selected from alkyl phenol polyoxy Vinyl ethers formaldehyde condensation products sulfate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyoxyethylene groups ether phosphate, Alkyl sulfate, alkylsulfonate, naphthalene sulfonate, TERSPERSE 2500；Thickener is selected from white carbon, polyvinyl alcohol, swelling Soil, aluminium-magnesium silicate；Antifreezing agent is selected from ethylene glycol, propane diols, glycerine, urea, inorganic salts (such as sodium chloride)；Stabilizer is selected from ring Oxygen soybean oil, epoxychloropropane, triphenyl phosphate；Decentralized medium is selected from soybean oil, rapeseed oil, corn oil, methyl oleate, bavin Oil, machine oil, mineral oil.

Rationally, activity when preventive effect is administered alone better than each component, with synergistic effect, expands control of weeds to instant component Spectrum, a dispenser prevent and kill off rice terrace grass family, Cyperaceae and broad leaved weed, reduce spraying times, reduce cost accounting, slow down miscellaneous The generation of careless resistance, it is good to crop safety, meet the security requirement of pesticidal preparations.The present invention is miscellaneous to rice field grass family Most of paddy field weed such as grass, broad leaved weed and sedge weed all has preferable preventive effect and to Security of rice It is high.

Embodiment

First, in order to prevent and treat rice terrace broad leaved weed, grassy weed and the sedge weed in agricultural production, inventor's Yi oxazines Humulone and halosulfuronmethyl have carried out Toxicity Determination research, and specific method is that indoor pot method carries out cauline leaf process, experiment Reference《The part of farm-chemical indoor determination test rule herbicide the 9th》.

1.1 reagent agent

95% oxaziclomefone active compound；95% halosulfuronmethyl active compound.

1.2 for examination weeds

Procumbent Falsepimpernel Lindernia procumbens (Krock.) Philcox (broad leaved weed)

Difformed galingale herb Cyperus difformis L. (sedge weed)

Barnyard grass Echinochloa crus-galli. (grassy weed)

1.3 experimental design

The experiment sets 24 processing altogether, Qi Zhong oxaziclomefones and halosulfuronmethyl set 0.125 respectively, 0.25,0.5,1.0,2.0, , oxaziclomefones are mixed with both halosulfuronmethyls sets up 4.0+0.125,2.0+0.125,1.0 separately for the processing of 4.0 grams/ha of 6 dosage +0.125、0.5+0.125、0.25+0.125、0.125+0.125、0.125+0.25、0.125+0.5、0.125+1.0、0.125+ 2.0th, 0.125+4.0 grams/ha of 11 dosage ratios processing, separately sets 1 blank control, 24 processing is set altogether, are repeated four times.

1.4 test method

Medicament uses now with the current, and active compound is used after dmso solution, adds Tween 80 emulsifying agent, prepares 10% mother liquor. According to medicament characteristic, 6 dosage from high to low is set.

The culture of target weeds uses potted plant cultivation, with 11 × 12cm plastic tubs, is adopted being not used in the rice field of herbicide The soil returned is air-dried, filled in basin, basin at dry ground quantitative 4/5 after sieving, soil pH value 7.0, the content of organic matter 1.2%.By last year Each about 30 uniform program requests are in soil surface, blinding 0.5cm after the Procumbent Falsepimpernel of field collection, difformed galingale herb, the immersion of barnyard grass seed It is placed in greenhouse and cultivates after~1cm, 28~32 DEG C/18~25 DEG C of indoor temperature (d/n) after planting keeps ground moistening.Miscellaneous Spray in spray tower (ASS-1 type pesticide spraying systems, DG8003 shower nozzles, spray are put when careless Procumbent Falsepimpernel, difformed galingale herb, barnyard grass 3-5 leaves Mist pressure 2.75MPA, 40kg/ mus of spouting liquid), dispenser preserves 3cm water layers after one day, is placed in greenhouse and cultivates observation.

1.5 weedy rices and analysis method

Periodical visual inspection observes growth conditions, poisoning symptom and the poisoning degree of weeds after dispenser, records after symptom of chemical damage, medicine 14 days The type of action of medicament mixed with use Colby method evaluations in 21 days, further inquires into the reasonability of proportioning.

1.5.1 ocular estimate

After dispenser 14 days with ocular estimate investigation records activity of weeding, investigated using following grade scale：

1 grade：It is all dead；

2 grades：Equivalent to the 0-2.5% of blank district；

3 grades：Equivalent to the 2.6-5% of blank district；

4 grades：Equivalent to the 5.1~10% of blank district；

5 grades：Equivalent to the 10.1~15% of blank district；

6 grades：Equivalent to the 15.1~25% of blank district；

7 grades：Equivalent to the 25.1~35% of blank district；

8 grades：Equivalent to the 35.1~67.5% of blank district；

9 grades：Equivalent to the 67.6~100% of blank district.

1.5.2 growth inhibition assay

Clip respectively handles ground chlorenchyma at 21 days, using scales/electronic balance weighing, actual survival rate E is calculated, using following public affairs Formula calculates theoretical survival rate E0, is examined with Colby methods, evaluates the two mixed synergy type to weeds.

The check plot weeds fresh weight of actual survival rate E (%)=treatment region weeds fresh weight × 100/

Theoretical survival rate E0=XY/100

In formula：X represents the herbicide 1 i.e. Weed-control effect of oxaziclomefone, and Y represents the herbicide 2 i.e. Weed-control effect of halosulfuronmethyl.

As E-E0 ＞ 10%, illustrate to produce synergistic effect, as E-E0 ＜ -10%, illustrate to produce antagonism, when E-E0 is situated between When ± 10%, illustrate to produce addition.

2 results and analysis

2.1 weeds death conditions

5 days after dispenser, the barnyard grass growth of Shi oxaziclomefones single dose processing slows down, and Procumbent Falsepimpernel, difformed galingale herb start yellow occur Symptom is withered until dead therewith, and the barnyard grass terminal bud of dispenser halosulfuronmethyl processing in 7 days reddens, and starts dead, difformed galingale herb, footpath between fields Terminal bud of serving has the different degrees of symptom that reddens.

14 days visual observations after 2.2 medicines

14 days after medicine, each treatment region weeds are carried out with range estimation investigation, it is as a result as follows：

The oxaziclomefone halosulfuronmethyl of table 1 uses the visual observation (level) of 14 days Procumbent Falsepimpernels after medicine with

The oxaziclomefone halosulfuronmethyl of table 2 uses the visual observation (level) of 14 days difformed galingale herbs after medicine with

The oxaziclomefone halosulfuronmethyl of table 3 uses the visual observation (level) of 14 days barnyard grasses after medicine with

It can be seen that from upper table 1-3 and produce addition after using with, weeds Activity Rank is substantially reduced.

21 days investigation results after 2.3 medicines

The oxaziclomefone halosulfuronmethyl of table 4 is mixed to the actual survival rate of Procumbent Falsepimpernel and theoretical survival rate

The mixed virulence to Procumbent Falsepimpernel of oxaziclomefone, halosulfuronmethyl：Oxaziclomefone is preferable to the preventive effect of Procumbent Falsepimpernel, is medicament Susceptible weeds, halosulfuronmethyl is general to the preventive effect of Procumbent Falsepimpernel, and Sui oxaziclomefone, the increase of halosulfuronmethyl consumption, uses with The preventive effect to Procumbent Falsepimpernel is improved afterwards.Actual preventive effect difference is generally higher than 10% after using with as seen from Table 4, on footpath between fields after the two is mixed The preventive effect of dish is in synergistic effect.

The mixed actual survival rate and theoretical survival rate to difformed galingale herb of the oxaziclomefone halosulfuronmethyl of table 5

The mixed virulence to difformed galingale herb of oxaziclomefone, halosulfuronmethyl：Oxaziclomefone, halosulfuronmethyl are prevented difformed galingale herb Effect is general, and Sui oxaziclomefone, the increase of halosulfuronmethyl consumption, it is mixed after the preventive effect of difformed galingale herb is greatly improved.From table 5 Find out that the actual preventive effect difference after using with is generally higher than 10%, be in synergistic effect to the preventive effect of difformed galingale herb after the two is mixed.

The mixed actual inhibiting rate and theoretical inhibiting rate to barnyard grass of the oxaziclomefone halosulfuronmethyl of table 6

The mixed virulence to barnyard grass of oxaziclomefone, halosulfuronmethyl：Oxaziclomefone is excellent to the preventive effect of barnyard grass, is the sensitivity of medicament Weeds, halosulfuronmethyl has stronger inhibitory action to barnyard grass, and Sui oxaziclomefone, the increase of halosulfuronmethyl consumption, uses with The preventive effect to barnyard grass is greatly improved afterwards.Actual preventive effect difference after using with as seen from Table 6 is generally higher than 10%, right after the two is mixed The preventive effect of barnyard grass is in synergistic effect.

From above result of the test Ke to find out that , oxaziclomefones, halosulfuronmethyl are used with, to Procumbent Falsepimpernel, difformed galingale herb, barnyard grass in increasing Effect is acted on, mixed to expand herbicide controlling spectrum, delays Weed Resistance, Jiang Di oxaziclomefones and both halosulfuronmethyls single dose content, Total preventive effect is improved, application cost is reduced, safer to crop, the two, which is used with, in production certain feasibility.

2nd, example of formulations

Example of formulations 1：

Weigh 40% halosulfuronmethyl, 40% oxaziclomefone, 3%TERSPERSE 2700 (poly- carboxylic hydrochloric acid, Huntsman Corporation of the U.S. Produce), 2% dispersing agent NNO (alkyl naphthalene sulfonate formaldehyde composition), 1% Nekal BX (nekal), 1%K- 12 (lauryl sodium sulfate), 3% soluble starch, 3% glucose, kaolin add to 100% parts by weight.Above-mentioned raw materials are through routine Produce the method i.e. mixing of water dispersible granules, ultra micro air-flow crushing, mixing, that granulation step produces 80% oxaziclomefone chlorine pyrrole is phonetic Sulphur precititation dispersible granule.

Example of formulations 2

Weigh 10% halosulfuronmethyl, 35% oxaziclomefone, 3%TERSPERSE 2700,4% sodium lignin sulfonate, 1% pull open Powder BX, 1%K-12,1% carboxymethyl cellulose, 3% urea, diatomite add to 100% parts by weight.The frequent regulation of above-mentioned raw materials takes The method of water dispersible granules is that mixing, ultra micro air-flow crushing, mixing, granulation step produce 45% oxaziclomefone halosulfuronmethyl Water dispersible granules.

Example of formulations 3

Weigh 35% halosulfuronmethyl, 10% oxaziclomefone, 4%TERSPERSE 2700,1% Nekal BX, 1%K-12, 0.8% dextrin, 5% ammonium sulfate, attapulgite add to 100% parts by weight.The side of the frequent regulation water intaking dispersible granule of above-mentioned raw materials Method is that mixing, ultra micro air-flow crushing, mixing, granulation step produce 45% oxaziclomefone halosulfuronmethyl water dispersible granules.

Example of formulations 4：

Weigh 20% halosulfuronmethyl, 40% oxaziclomefone, 4%Morwet D-425 (alkylnaphthalene sulfonate, Akzo Nobel Produce), 3% dispersing agent NNO, 2% Nekal BX, 2%K-12,2% polyvinylpyrrolidone, 0.5% xanthans, kaolin adds To 100% parts by weight.The method of the frequent regulation water intaking dispersible granule of above-mentioned raw materials is mixing, ultra micro air-flow crushing, mixing, granulation Step produces 60% oxaziclomefone halosulfuronmethyl water dispersible granules

Example of formulations 5

Weigh 32% halosulfuronmethyl, it is 23% oxaziclomefone, 5% calcium lignosulfonate, 2% Nekal BX, 1%K-12,3% white Carbon black, kaolin add to 100% parts by weight.Above-mentioned raw materials are blended, 55% oxaziclomefone chlorine pyrrole are made after air-flow crushing phonetic The grand wettable powder of sulphur

Example of formulations 6

Weigh 24% halosulfuronmethyl, 48% oxaziclomefone, 4% calcium lignosulfonate, 3%TERSPERSE 2700,2% pull open Powder BX, 1%K-12,3% White Carbon black, precipitated calcium carbonate add to 100% parts by weight.Above-mentioned raw materials are blended, made after air-flow crushing Obtain 72% oxaziclomefone halosulfuronmethyl wettable powder

Example of formulations 7

Weigh 33% halosulfuronmethyl, 34% oxaziclomefone, 4% calcium lignosulfonate, 3% dispersing agent NNO, 1% Nekal BX, 1%K-12,3% White Carbon black, attapulgite add to 100% parts by weight.Above-mentioned raw materials are blended, and 67% Evil is made after air-flow crushing Metribuzin halosulfuronmethyl wettable powder

Example of formulations 8

Weigh 56% halosulfuronmethyl, 16% oxaziclomefone, 4% sodium lignin sulfonate, 2%TERSPERSE 2700,2%K- 12nd, 3% White Carbon black, clay add to 100% parts by weight.Above-mentioned raw materials are blended, and 72% Mi oxazines grass is made after air-flow crushing Ketone halosulfuronmethyl wettable powder

Example of formulations 9

Weigh 24% halosulfuronmethyl, 34% oxaziclomefone, 5% White Carbon black, kaolin and add to 100% parts by weight.Above-mentioned raw materials It is blended, 58% oxaziclomefone halosulfuronmethyl soluble powder is made after air-flow crushing.

Example of formulations 10

Weigh 25% halosulfuronmethyl, 24% oxaziclomefone, 10% diatomite, talcum powder and add to 100% parts by weight.Above-mentioned raw materials It is blended, 49% oxaziclomefone halosulfuronmethyl soluble powder is made after air-flow crushing.

Example of formulations 11

Weigh 27% halosulfuronmethyl, 14% oxaziclomefone, 3% paraffin, 1% White Carbon black, 1% iron oxide, sand and add to 100% Parts by weight., is standby Jiang oxaziclomefone, halosulfuronmethyl and White Carbon black co-grinding into female powder in coating method granulation above-mentioned raw materials； Paraffin hot melt is in a liquid state into penetrating to wash and drying and preheating is to 50 DEG C of sands, and it is well mixed after, female powder is added, stirring 5 ~10 minutes, normal temperature is cooled to, 41% oxaziclomefone halosulfuronmethyl granule is made

Example of formulations 12

Weigh 3% halosulfuronmethyl, 9% oxaziclomefone, 15% starch, 0.5% polyvinylpyrrolidone, 1% iron oxide, lightweight Calcium adds to 100% parts by weight.Extrude granulation granulation.Above-mentioned raw materials are blended, after air-flow crushing, and add water kneading, extruding granulating, And dry, sieve, 12% oxaziclomefone halosulfuronmethyl granule is made.

Example of formulations 13

Weigh 8% halosulfuronmethyl, 12% oxaziclomefone, 3%TERSPERSE 4894,2%TERSPERSE 2500,1% TERSPERSE 2425,0.2% xanthans, 5% ethylene glycol, 0.3% benzoic acid, 0.5% organic silicon defoamer, deionized water add To 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 20% oxazine grass is made after being sanded with sand mill Ketone halosulfuronmethyl suspending agent.

Example of formulations 14

Weigh 5% halosulfuronmethyl, 5% oxaziclomefone, the emulsifying agent T-60 of 1.5%NNO, 1%TERSPERSE 2500,2%, 3% Nongru-700 #, 0.1% xanthans, the 5% the third ethanol, 0.5% formaldehyde, 0.3% organic silicon defoamers, deionized water are added to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 10% oxaziclomefone is made after being sanded with sand mill Halosulfuronmethyl suspending agent.

Example of formulations 15

Weigh 6% halosulfuronmethyl, 10% oxaziclomefone, 3%TERSPERSE 4894,1%TERSPERSE 2500,1% TERSPERSE 2425,0.2% xanthans, 1% aluminium-magnesium silicate, 5% ethylene glycol, 0.3% sodium benzoate, 0.5% organosilicon disappear Infusion, deionized water adds to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, after being sanded with sand mill 16% oxaziclomefone halosulfuronmethyl suspending agent is made.

Example of formulations 16

Weigh 20% halosulfuronmethyl, 10% oxaziclomefone, 3% Nongru-700 #, 2% agriculture breast 1601#, 1.5% The xanthans of TERSPERSE2500,0.5%TERSPERSE 2425,0.2%, 3% white carbon, 5% ethylene glycol, 0.3% benzene first Acid, 0.5% organic silicon defoamer, deionized water add to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear is disperseed 30min, is made 30% oxaziclomefone halosulfuronmethyl suspending agent after being sanded with sand mill.

Example of formulations 17

Weigh 3% halosulfuronmethyl, 2% oxaziclomefone, this disk -60# of 2%TERSPERSE 2425,4%, 3% Tween-60 #, 2% 2500,0.5% white carbon of Nongru-700 #, 1%TERSPERSE, 5% propane diols, 1% epoxychloropropane, methyl oleate add To 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 5% oxazine grass is made after being sanded with sand mill The dispersible oil-suspending agent of ketone halosulfuronmethyl.

Example of formulations 18

Weigh 3% halosulfuronmethyl, 3% oxaziclomefone, 2% dispersing agent NNO, 3% agriculture breast 2201#, 8%BY-110,1% TERSPERSE 2500,1% aluminium-magnesium silicate, 3% propane diols, 15% epoxidized soybean oil, soybean oil add to 100% parts by weight.On State raw material blended, high speed shear disperses 30min, 6% oxaziclomefone halosulfuronmethyl is made after being sanded with sand mill to be divided Dissipate oil-suspending agent.

Example of formulations 19

Weigh 4% halosulfuronmethyl, 6% oxaziclomefone, this disk -60# of 3%TERSPERSE 2425,3%, 3% Tween-60 #, The white carbon of 8%BY-110,1%TERSPERSE 2500,0.5%, 5% propane diols, 20% epoxidized soybean oil, methyl oleate are added to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 10% oxaziclomefone is made after being sanded with sand mill The dispersible oil-suspending agent of halosulfuronmethyl.

Example of formulations 20

Weigh 5% halosulfuronmethyl, 2.5% oxaziclomefone, 3% dispersing agent NNO, 5%BY-125,4% this disk -60#, 4% agriculture Newborn 1601#, 1% phenethyl phenol polyoxyethylene groups ether phosphate, 0.5% bentonite, 5% glycerine, 3% triphenyl phosphate, vegetable seed Oil adds to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 7.5% Evil is made after being sanded with sand mill The dispersible oil-suspending agent of metribuzin halosulfuronmethyl.

3rd, field control effectiveness test

Example 1 prevents and kill off rice weed field control effectiveness test

Inventor has carried out 6% oxaziclomefone halosulfuronmethyl on June 1st, 2010 in Jiaxing City, Zhejiang Province rice direct seeding field Experiment of (3%+3%) the dispersible oil-suspending agent (example of formulations 18) to paddy field weed.Field main weeds have Eclipta prostrata, rain Long flower, Procumbent Falsepimpernel, barnyard grass and difformed galingale herb, weed size is in 2~4 leaf phases.Test medicine and dosage are 6% oxaziclomefone chlorine Dispersible oil-suspending agent 20g/ mus of pyrazosulfuron, 30g/ mus, 40g/ mus, dispersible oil suspending agent 60ml/ mus of 25g/ Sheng oxaziclomefones, 10% 20g/ mus of halosulfuronmethyl wettable powder.Using conventional spray-on process.

The dispersible oil-suspending agent of oxaziclomefone halosulfuronmethyl of table 7 6% is to rice direct seeding field weed control efficacy

The dispersible oil-suspending agent of oxaziclomefone halosulfuronmethyl of table 8 6% is to rice direct seeding field weed control efficacy

The dispersible oil suspending agent of oxaziclomefone halosulfuronmethyl of table 9 6% is to rice direct seeding field weed control efficacy

Result of the test shows：After dispersible oil suspending agent 30g/ mus of 6% oxaziclomefone halosulfuronmethyl, 40g/ mus of medicines 30 days to rain Long flower, Procumbent Falsepimpernel, Eclipta prostrata, difformed galingale herb, the average strain preventive effect of barnyard grass and fresh weight preventive effect are all remarkably higher than the Evil of comparison medicament 2.5% Dispersible oil suspending agent 60ml/ mus of metribuzin, 20g/ mus of 10% halosulfuronmethyl wettable powder, illustrate after two medicament mixtures big There is obvious synergistic effect in field in, while having saved drug cost, expands control of weeds spectrum.

Example 2 prevents and kill off rice weed field control effectiveness test

Inventor has carried out the 55% phonetic sulphur of oxaziclomefone chlorine pyrrole on June 25th, 2010 in Xianju County in Zhejiang Province transplanted rice field Experiment of grand (32%+23%) wettable powder (example of formulations 5) to paddy field weed.Field main weeds have Eclipta prostrata, rain Long flower, Procumbent Falsepimpernel, barnyard grass and difformed galingale herb, weed size is in 2~4 leaf phases.Test medicine and dosage are 18% oxaziclomefone 8g/ mus of halosulfuronmethyl wettable powder, 10g/ mus, 12g/ mus, 60ml/ mus of 25g/ Sheng oxaziclomefone oil suspending agents, 10% chlorine pyrrole 20g/ mus of Sulfometuron Methyl wettable powder.Using conventional spray-on process.

The oxaziclomefone halosulfuronmethyl WP on Rice transplant field weed control efficacy of table 10 55%

The oxaziclomefone halosulfuronmethyl WP on Rice transplant field weed control efficacy of table 11 55%

The oxaziclomefone halosulfuronmethyl WP on Rice transplant field weed control efficacy of table 12 55%

Result of the test shows：After 55% 10g/ mus, 12g/ mus of oxaziclomefone halosulfuronmethyl wettable powder medicine 30 days to rain Long flower, Procumbent Falsepimpernel, Eclipta prostrata, difformed galingale herb, the average strain preventive effect of barnyard grass and fresh weight preventive effect are above comparison medicament 25g/ Sheng oxazines Dispersible oil suspending agent 60ml/ mus of humulone, 20g/ mus of 10% halosulfuronmethyl wettable powder, illustrate after two medicament mixtures in crop field There is obvious synergistic effect in use, while saving drug cost.

In summary, rationally, activity when preventive effect is administered alone better than each component, field control effectiveness test verifies it to instant component Combination has synergistic effect, expands control of weeds spectrum, a dispenser and prevents and kill off rice terrace grass family, Cyperaceae and broad leaved weed, subtracts Few spraying times, reduce cost accounting, slow down the generation of Weed Resistance, good to crop safety, meet the safety of pesticidal preparations Property require.

Claims (6)

1. the herbicidal composition of a kind of Han oxaziclomefones and halosulfuronmethyl, it is characterised in that：Its active component Wei oxazines grass The weight ratio of ketone and halosulfuronmethyl, Suo Shu oxaziclomefones and halosulfuronmethyl is（8：1）~（1：8）.

2. herbicidal composition according to claim 1, it is characterised in that：The weight of Suo Shu oxaziclomefones and halosulfuronmethyl Measuring ratio is（3.5：1）~（1：3.5）.

3. herbicidal composition according to claim 1 or 2, it is characterised in that：Suo Shu oxaziclomefones and halosulfuronmethyl Weight and for the composition total weight 0.1% ~ 80%.

4. herbicidal composition according to claim 3, it is characterised in that：The weight of Suo Shu oxaziclomefones and halosulfuronmethyl Amount and 2% ~ 20% for the composition total weight.

5. herbicidal composition according to claim 1, it is characterised in that：The formulation of the composition is water-dispersible grain Agent, wettable powder, soluble powder, granule, suspending agent, dispersible oil-suspending agent.

6. herbicidal composition as claimed in claim 1 is preventing and kill off rice seedling bed, direct seading rice field, rice transplanting rice terrace, transplanting The application of rice terrace and corn, the annual grassy weeds of wheat paddock and barnyard grass.