CN107027776A - A kind of herbicidal composition of Han oxaziclomefones and piperazine pyrazosulfuron - Google Patents

Abstract

The present invention discloses the herbicidal composition of Han oxaziclomefones and piperazine pyrazosulfuron a kind of, the active component Wei oxaziclomefones and piperazine pyrazosulfuron of the composition, and the weight ratio of Suo Shu oxaziclomefones and piperazine pyrazosulfuron is（30：1）~（1：30）.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 has preferable preventive effect and high to Security of rice to most of paddy field weed such as rice field grassy weed, broad leaved weed and sedge weed.

Description

A kind of herbicidal composition of Han oxaziclomefones and piperazine pyrazosulfuron

Technical field

The present invention relates to pesticide herbicide field, and in particular to a kind of Han oxaziclomefones and the herbicide group of piperazine pyrazosulfuron Compound.

Background technology

Since preventing and kill off rice terrace broad leaved weed from or so nineteen fifty large-area applications 2,4-drop, the chlorine of 2 first 4, rice terrace is with removing Careless agent kind is developed rapidly, and kind is updated, and has successively emerged in large numbers diphenyl ether, thiocarbamates, amide-type, quinoline The herbicides such as carboxylic acids, sulfonylurea, form the more perfect Chemical Weeding System for being adapted to paddy rice different planting, As indispensable in Rice Production and highly important well stimulation.

But, as numerous herbicide kinds are persistently used in rice terrace large area, the problem of also producing many：1. weeds Resistance is protruded, wherein the resistance of propanil, halosulfuronmethyl, butachlor, benthiocarb is more protruded with barnyard grass, recently, special-shaped Sha The common weeds such as the Cyperaceaes such as grass, firefly Lin, angustifolia arrowhead herb, Monochoria korsakowii, Monochoria vaginalis, Pontederiaceae, Alismataceae are to sulfonylurea herbicide Agent generates resistance, makes weeding problem more complicated.2. perennial weeds harm turns into major issue, and particularly Cyperaceae is perennial Weeds are more prominent.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 extend the lasting phase that soil prevents and kill off medicament.5. for wide spectrum, selectivity herbicide kind strong, easy to use demand more Urgently.

Oxaziclomefone English common name oxaziclomefone, chemical name 3 [1- (3,5- dichlorophenyl)-propyl group] -3, 4- dihydro -6- methyl -5- phenyl -2H-1,3- zinc oxalates -4-one.Oxaziclomefone belongs to organic heterocyclic class, is inner sucting conduction type Herbicide for paddy field, mainly by the root of weeds and cauline leaf basal sink.Leaves and stemses chlorosis, stopping life after weeds contact medicament It is long, until withered.Oxaziclomefone mainly prevents and kill off rice terrace annual gramineous weed, nutgrass flatsedge and some broad leaved weeds etc., wherein 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 after bud After rice terrace, medicament is mainly by the root system and cauline leaf basal sink of weeds, and generally within medication two weeks after, weeds cauline leaf takes off Green, rubescent, 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.

Piperazine pyrazosulfuron English common name metazosulfuron, molecular formula C15H18ClN707S.Piperazine pyrazosulfuron is day The sulfonylurea herbicide of KCC's exploitation is produced, is mainly used in preventing and kill off piemarker, Amaranthus retroflexus, the horse of rice terrace and wheat paddock Tang and barnyard grass, are obtained in the enterprising one-step optimization of herbicide halosulfuronmethyl architecture basics.

Barnyard grass, a thousand pieces of gold special efficacy of the , oxaziclomefones to rice field, but to the wealthy weeds in part, Sha in actual use Careless effect is not satisfactory；Piperazine pyrazosulfuron can be fabulous prevent and kill off most of weeds, and unlike most of such herbicides, piperazine Pyrazosulfuron is mainly used in preventing and kill off piemarker, Amaranthus retroflexus, lady's-grass and the barnyard grass of rice terrace and wheat paddock to rice safety.Therefore, send out Oxaziclomefone, piperazine pyrazosulfuron are carried out rational mixture by a person of good sense, find there is notable synergy, expanded control of weeds spectrum, are once applied Medicine prevents and kill off rice terrace grass family, Cyperaceae and broad leaved weed, reduces spraying times, reduces the effect of cost accounting,.

The content of the invention

It is an object of the invention to provide a kind of component is reasonable, herbicidal spectrum is wide, preventive effect good, drug cost is low and is not likely to produce The herbicidal composition of drug-fast Han oxaziclomefones and piperazine pyrazosulfuron.

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

In order to overcome the defect of existing unitary agent, technical scheme is as follows：

The herbicidal composition of a kind of Han oxaziclomefones and piperazine pyrazosulfuron, the active component Wei oxazines grass of the composition The weight ratio of ketone and piperazine pyrazosulfuron, Suo Shu oxaziclomefones and piperazine pyrazosulfuron is (30：1)~(1：30).

The weight ratio of further scheme, Suo Shu oxaziclomefones and piperazine pyrazosulfuron is (10：1)~(1：10).

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

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

Further scheme, the formulation of the composition is water dispersible granules, wettable powder, soluble powder, granule Or suspending agent.

Another goal of the invention of the present invention is to provide above-mentioned composition and is preventing and kill off rice seedling bed, direct seading rice field, rice transplanting The application of rice terrace and transplanting rice Tanaka annual grassy weeds and barnyard grass.

For water dispersible granules, those skilled in the art are very familiar with completing the present invention using corresponding auxiliary agent.It is scattered Agent 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, alkyl phenol polyoxy Vinethene；Disintegrant be selected from ammonium sulfate, sodium sulphate, sodium chloride, ammonium chloride, urea, sucrose, glucose, carboxymethyl cellulose, can Molten starch, polyvinylpyrrolidone；Binding agent is selected from polyvinyl alcohol, soluble starch, dextrin, xanthans, carboxymethyl (ethyl) Cellulose family；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 sulphur Hydrochlorate；Wetting agent is selected from alkyl sulfate, alkylsulfonate, naphthalene sulfonate；Filler is selected from ammonium sulfate, urea, sucrose, grape Sugar, diatomite, 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, concave convex rod Soil, clay, clay.

To granule, workable auxiliary agent has：Carrier is selected from ammonium sulfate, urea, potassium dihydrogen phosphate, calcium superphosphate, diatom It is soil, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, clay, boccaro rock dust, stone coal slag, clay, sand, red Brick, sawdust, starch；Binding agent is selected from paraffin, gypsum, polyvinylpyrrolidone, carboxymethyl (ethyl) cellulose, hydroxypropyl methyl Cellulose, 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 weeds and prevented instant component Control spectrum, a dispenser and prevent and kill off rice terrace grass family, Cyperaceae and broad leaved weed, reduce spraying times, reduce cost accounting, slow down The generation of Weed Resistance, it is good to crop safety, meet the security requirement of pesticidal preparations.The present invention is to rice field grass family The major part such as weeds, broad leaved weed and sedge weed paddy field 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 with Oxaziclomefone and piperazine pyrazosulfuron have carried out Toxicity Determination research, and specific method is that indoor pot method carries out cauline leaf process, Test reference《The part of farm-chemical indoor determination test rule herbicide the 9th》.

1.1 reagent agent

95% oxaziclomefone active compound；95% piperazine pyrazosulfuron 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 piperazine pyrazosulfuron set 0.1 respectively, 0.2,0.5,1.0,2.0, , oxaziclomefones are mixed with both piperazine pyrazosulfurons sets up 3.0+0.1,2.0+0.1,1.0+ separately for the processing of 3.0 grams/ha of 6 dosage 0.1st, 0.5+0.1,0.2+0.1,0.1+0.1,0.1+0.2,0.1+0.5,0.1+1.0,0.1+2.0,0.1+3.0 grams/ha 11 Individual dosage ratio 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% female Liquid.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, the rice field of herbicide will be not used In the soil adopted back air-dry, fill in basin, basin at dry ground quantitative 4/5 after sieving, soil pH value 7.0, the content of organic matter 1.2%.Will Each about 30 uniform program requests are in soil surface, blinding after Procumbent Falsepimpernel, difformed galingale herb, the barnyard grass seed of last year field collection soak It is placed in greenhouse and cultivates after 0.5cm~1cm, 28~32 DEG C/18~25 DEG C of indoor temperature (d/n) after planting keeps ground moistening. Spray in spray tower (ASS-1 type pesticide spraying systems, DG8003 sprays are put in weeds Procumbent Falsepimpernel, difformed galingale herb, barnyard grass 3-5 leaves Head, atomisation 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 The type of action of 14 days medicaments 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 public affairs Formula (2) calculates theoretical survival rate E0, is examined with Colby methods, evaluates the two mixed synergy type to weeds.

The check plot weeds fresh weight (1) of actual survival rate E (%)=treatment region weeds fresh weight × 100/

Theoretical survival rate E0=XY/100 (2)

In formula：The Weed-control effect of X Biao Shi oxaziclomefones, Y represents the Weed-control effect of piperazine pyrazosulfuron

As E-E0 ＞ 10%, illustrate to produce synergistic effect, as E-E0 ＜ -10%, illustrate to produce antagonism, work as E- E0 between ± 10% when, illustrate 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 to occur Yellow symptom is withered until dead therewith, and the barnyard grass terminal bud of dispenser piperazine pyrazosulfuron processing in 7 days reddens, and starts dead, special-shaped Sha Grass, Procumbent Falsepimpernel terminal bud 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 piperazine pyrazosulfuron of table 1 uses the visual observation (level) of 14 days Procumbent Falsepimpernels after medicine with

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

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

From upper table 1-3 Ke it is mixed with piperazine pyrazosulfuron with Kan Chu oxaziclomefones after produce addition, Procumbent Falsepimpernel, special-shaped Sha Grass, the reduction of barnyard grass Activity Rank.

21 days investigation results after 2.3 medicines

The oxaziclomefone piperazine pyrazosulfuron 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, piperazine pyrazosulfuron：Oxaziclomefone is preferable to the preventive effect of Procumbent Falsepimpernel, is medicine The susceptible weeds of agent, piperazine pyrazosulfuron is general to the preventive effect of Procumbent Falsepimpernel, and Sui oxaziclomefone, the increase of piperazine pyrazosulfuron consumption, The preventive effect of Procumbent Falsepimpernel is improved after mixed.Actual preventive effect difference is generally higher than 10% after using with as seen from Table 4, right after the two is mixed The preventive effect of Procumbent Falsepimpernel is in synergistic effect.

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

The mixed virulence to difformed galingale herb of oxaziclomefone, piperazine pyrazosulfuron：Oxaziclomefone, piperazine pyrazosulfuron are to difformed galingale herb Preventive effect it is general, Sui oxaziclomefone, the increase of piperazine pyrazosulfuron consumption, it is mixed after the preventive effect of difformed galingale herb is greatly improved. Actual preventive effect difference after using with as seen from Table 5 is generally higher than 10%, and the preventive effect of difformed galingale herb is made in synergy after the two is mixed With.

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

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

From above result of the test Ke to find out that , oxaziclomefones, piperazine pyrazosulfuron are used with, to Procumbent Falsepimpernel, difformed galingale herb, barnyard grass It is mixed to expand herbicide controlling spectrum in synergistic effect, delay Weed Resistance, Jiang Di oxaziclomefones contain with both piperazine pyrazosulfurons single dose Amount, improves total preventive effect, reduces application cost, safer to crop, and the two, which is used with, in production certain feasibility.

2nd, example of formulations

Example of formulations 1：

Weighing 40% piperazine pyrazosulfuron, 40% oxaziclomefone, 3%TERSPERSE 2700, (poly- carboxylic hydrochloric acid, U.S.'s Hensel is stepped Company 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 The method of frequent regulation water intaking dispersible granule is that mixing, ultra micro air-flow crushing, mixing, granulation step produce 80% oxaziclomefone Piperazine pyrazosulfuron water dispersible granule.

Example of formulations 2

Weigh 21% piperazine pyrazosulfuron, 63% oxaziclomefone, 3%TERSPERSE 2700,4% sodium lignin sulfonate, 1% Nekal BX, 1%K-12,1% carboxymethyl cellulose, 3% urea, diatomite 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 84% oxaziclomefone piperazine pyrrole is phonetic Sulphur precititation dispersible granule.

Example of formulations 3

Weigh 33% piperazine pyrazosulfuron, 11% oxaziclomefone, 4%TERSPERSE 2700,1% Nekal BX, 1%K- 12nd, 0.8% dextrin, 5% ammonium sulfate, attapulgite add to 100% parts by weight.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 44% oxaziclomefone piperazine pyrazosulfuron water dispersible granule.

Example of formulations 4：

Weigh 20% piperazine pyrazosulfuron, 2.5% oxaziclomefone, 4%Morwet D-425 (alkylnaphthalene sulfonate, Aksu Nobel produce), 3% dispersing agent NNO, 2% Nekal BX, 2%K-12,2% polyvinylpyrrolidone, 0.5% xanthans, height Ridge soil 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, mixed Close, granulation step produces 22.5% oxaziclomefone piperazine pyrazosulfuron water dispersible granule.

Example of formulations 5

Weigh 7% piperazine pyrazosulfuron, 56% 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, and 63% oxaziclomefone piperazine is made after air-flow crushing Pyrazosulfuron wettable powder.

Example of formulations 6

Weigh 40% piperazine pyrazosulfuron, 4% oxaziclomefone, 4% calcium lignosulfonate, 3%TERSPERSE 2700,2% Nekal BX, 1%K-12,3% White Carbon black, precipitated calcium carbonate add to 100% parts by weight.Above-mentioned raw materials are blended, air-flow crushing 44% oxaziclomefone piperazine pyrazosulfuron wettable powder is made afterwards.

Example of formulations 7

Weigh 20% piperazine pyrazosulfuron, 40% oxaziclomefone, 4% calcium lignosulfonate, 3% dispersing agent NNO, 1% pull open Powder BX, 1%K-12,3% White Carbon black, attapulgite add to 100% parts by weight.Above-mentioned raw materials are blended, are made after air-flow crushing 60% oxaziclomefone piperazine pyrazosulfuron wettable powder.

Example of formulations 8

Weigh 45% piperazine pyrazosulfuron, 5% oxaziclomefone, 4% sodium lignin sulfonate, 2%TERSPERSE 2700,2% K-12,3% White Carbon black, clay add to 100% parts by weight.Above-mentioned raw materials are blended, and 50% Mi oxazines grass is made after air-flow crushing Ketone piperazine pyrazosulfuron wettable powder.

Example of formulations 9

Weigh 28% piperazine pyrazosulfuron, 22% oxaziclomefone, 5% White Carbon black, kaolin and add to 100% parts by weight.It is above-mentioned Raw material is blended, and 50% oxaziclomefone piperazine pyrazosulfuron wettable powder is made after air-flow crushing.

Example of formulations 10

Weigh 25% piperazine pyrazosulfuron, 27% oxaziclomefone, 10% diatomite, talcum powder and add to 100% parts by weight.It is above-mentioned Raw material is blended, and 52% oxaziclomefone piperazine pyrazosulfuron soluble powder is made after air-flow crushing.

Example of formulations 11

7% piperazine pyrazosulfuron, 13% oxaziclomefone, 3% paraffin, 1% White Carbon black, 1% iron oxide, sand is weighed to add to 100% parts by weight.Coating method granulation above-mentioned raw materials in , Jiang oxaziclomefone, piperazine pyrazosulfuron and White Carbon black co-grinding into female powder, It is standby；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, cools to normal temperature, and 20% oxaziclomefone piperazine pyrazosulfuron granule is made

Example of formulations 12

Weigh 2% piperazine pyrazosulfuron, 8% oxaziclomefone, 15% starch, 0.5% polyvinylpyrrolidone, 1% iron oxide, Light weight 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, 10% oxaziclomefone piperazine pyrazosulfuron granule is made.

Example of formulations 13

Weigh 6% piperazine pyrazosulfuron, 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, deionization Water adds to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 20% oxazine is made after being sanded with sand mill Humulone piperazine pyrazosulfuron suspending agent.

Example of formulations 14

Weigh 5% piperazine pyrazosulfuron, 5% oxaziclomefone, the emulsifying agent T- of 1.5%NNO, 1%TERSPERSE 2500,2% 60th, 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 Piperazine pyrazosulfuron suspending agent.

Example of formulations 15

Weigh 5% piperazine pyrazosulfuron, 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 Defoamer, deionized water adds to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, is sanded with sand mill 15% oxaziclomefone piperazine pyrazosulfuron suspending agent is made afterwards.

Example of formulations 16

Weigh 20% piperazine pyrazosulfuron, 10% oxaziclomefone, 3% Nongru-700 #, 2% agriculture breast 1601#, 1.5% TERSPERSE 2500,0.5%TERSPERSE 2425,0.2% xanthans, 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 piperazine pyrazosulfuron suspending agent after being sanded with sand mill.

Example of formulations 17

Weigh 3% piperazine pyrazosulfuron, 12% 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, oleic acid first Ester adds to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 15% oxazine is made after being sanded with sand mill The dispersible oil-suspending agent of humulone piperazine pyrazosulfuron.

Example of formulations 18

Weigh 3% piperazine pyrazosulfuron, 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 piperazine pyrazosulfuron is made after being sanded with sand mill to be divided Dissipate oil-suspending agent.

Example of formulations 19

Weigh 4% piperazine pyrazosulfuron, 16% oxaziclomefone, this disk -60# of 3%TERSPERSE 2425,3%, 3% tween - The white carbon of 60#, 8%BY-110,1%TERSPERSE 2500,0.5%, 5% propane diols, 20% epoxidized soybean oil, methyl oleate 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 The dispersible oil-suspending agent of ketone piperazine pyrazosulfuron.

Example of formulations 20

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

3rd, field control effectiveness test

Biological examples 1 prevent and kill off rice weed field control effectiveness test

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

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

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

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

Result of the test shows：30 days after 6% dispersible oil suspending agent 30g/ mus of oxaziclomefone piperazine pyrazosulfuron, 40g/ mus of medicines Comparison medicament is all remarkably higher than to Monochoria korsakowii, Procumbent Falsepimpernel, Eclipta prostrata, difformed galingale herb, the average strain preventive effect of barnyard grass and fresh weight preventive effect Dispersible oil suspending agent 60ml/ mus of 2.5% oxaziclomefone, 10% 20g/ mus of piperazine pyrazosulfuron wettable powder, illustrate that two medicaments are mixed There is obvious synergistic effect in crop field after matching somebody with somebody, while having saved drug cost, expand control of weeds spectrum.

Biological examples 2 prevent and kill off rice weed field control effectiveness test

Inventor example of formulations 9 has been carried out in Xianju County in Zhejiang Province transplanted rice field on June 25th, 2010 50% The experiment of oxaziclomefone piperazine pyrazosulfuron (28%+22%) WP on Rice field weed.Field main weeds have murrel Intestines, Monochoria korsakowii, Procumbent Falsepimpernel, barnyard grass and difformed galingale herb, weed size is in 2~4 leaf phases.Test medicine and dosage are 18% oxazine grass 8g/ mus of ketone piperazine pyrazosulfuron wettable powder, 10g/ mus, 12g/ mus, 60ml/ mus of 25g/ Sheng oxaziclomefone oil suspending agents, 10% 20g/ mus of piperazine pyrazosulfuron wettable powder.Using conventional spray-on process.

The oxaziclomefone piperazine pyrazosulfuron WP on Rice transplant field weed control efficacy of table 10 50%

The oxaziclomefone piperazine pyrazosulfuron WP on Rice transplant field weed control efficacy of table 11 50%

The oxaziclomefone piperazine pyrazosulfuron WP on Rice transplant field weed control efficacy of table 12 50%

Result of the test shows：30 days after 50% 10g/ mus, 12g/ mus medicines of oxaziclomefone piperazine pyrazosulfuron wettable powder Comparison medicament 25g/ liters are above to Monochoria korsakowii, Procumbent Falsepimpernel, Eclipta prostrata, difformed galingale herb, the average strain preventive effect of barnyard grass and fresh weight preventive effect Dispersible oil suspending agent 60ml/ mus of oxaziclomefone, 10% 20g/ mus of piperazine pyrazosulfuron wettable powder, illustrate after two medicament mixtures There is obvious synergistic effect in crop field in, while saving drug cost.

In summary, instant component rationally, test by activity when preventive effect is administered alone better than each component, field control effectiveness test Demonstrate,proving its combination has synergistic effect, and it is miscellaneous that expansion control of weeds is composed, rice terrace grass family, Cyperaceae and broad-leaved are prevented and kill off in a dispenser Grass, reduces spraying times, reduces cost accounting, slows down the generation of Weed Resistance, good to crop safety, meets pesticidal preparations Security requirement.

Claims (6)

1. the herbicidal composition of a kind of Han oxaziclomefones and piperazine pyrazosulfuron, it is characterised in that：The composition activity into The weight ratio of Fen Wei oxaziclomefones and piperazine pyrazosulfuron, Suo Shu oxaziclomefones and piperazine pyrazosulfuron is（30：1）~（1：30）.

2. herbicidal composition according to claim 1, it is characterised in that：The weight of Suo Shu oxaziclomefones and piperazine pyrazosulfuron Measuring ratio is（10：1）~（1：10）.

3. herbicidal composition according to claim 1 or 2, it is characterised in that：Suo Shu oxaziclomefones and piperazine pyrazosulfuron 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 piperazine pyrazosulfuron 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 or suspending agent.

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