CN107333762A - A kind of herbicidal composition and its application of the ketone of sulphur containing ring and clopyralid - Google Patents

Abstract

The invention discloses herbicidal composition and its application of a kind of ketone of sulphur containing ring and clopyralid, it is related to technical field.Including containing active component ring sulphur ketone and clopyralid, the weight ratio between both its middle ring sulphur ketone and clopyralid is 32：1~1：32, preferably 8：1~1：8；The cumulant of ring sulphur ketone and clopyralid is the 0.1%~80% of the composition total weight, preferably 2%~20%.Instant component is reasonable, activity when preventive effect is administered alone better than each component, with synergistic effect, expand control of weeds spectrum, corn field grass family, Cyperaceae and broad leaved weed are prevented and kill off in a dispenser, 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.

Description

A kind of herbicidal composition and its application of the ketone of sulphur containing ring and clopyralid

Technical field

The invention belongs to herbicide technology field, more particularly to a kind of herbicide for being used to prevent and treat corn field weed, it The binary herbicidal composition being made up of ring sulphur ketone and clopyralid for activity.

Background technology

Corn is both the important cereal crops in China, and important forage crop and the raw material of industry, with animal husbandry, food The development of the industries such as product processing, wine-making industry and biodiesel, the market demand of corn are continuously increased.The weeds of corn field occur general Time, species is various, and when Maize Seedling is by Weed infestation, plant is short and small, and bar spire is yellow, causes middle and later periods corn growth bad, sternly The underproduction again.Therefore, the chemical prevention of corn field weed two critical periods of before seedling and after seedling early stage all after broadcasting are carried out.Current Corn field weed management system in, herbicide still plays very important effect.But the herbicide of current corn field herbicide Compose it is limited, it is poor to the preventive effect of weeds.

Conventional chemical method carries out weeding at present, and used herbicide is mainly Acetochlor and atrazine, wherein second grass The drug effect phase of amine is short, although the herbicidal effect of atrazine is good, the drug effect phase is longer, poor to some resistant weed effects, in order to Solves above-mentioned drawback, the present invention have selected several newtype drug compositions with preventing and treating and herbicidal effect, develop a kind of corn Field herbicidal, the weeds after being unearthed not only effectively are killed, also can control weeds of not being unearthed, improve herbicidal effect；Weeding of the present invention Active ingredient in agent coordinates good synergistic effect within the specific limits, and preventive effect is higher than single dose, and the property of medicine is held time length；It is right When stubble corn and succession crop safety, it is ensured that the security of corn crop.

Ring sulphur ketone is a kind of three ketones selective herbicide, can effectively prevent and treat main broad leaved weed and some grass family are miscellaneous Grass, such as piemarker, three-coloured amaranth, lamb's-quarters, knotweed, barnyard grass, lady's-grass have preferable prevention effect, available for cauline leaf after Seal treatment before bud and bud Processing.

Ring sulphur ketone English common name Tembotrione.Ring sulphur ketone is one of member of three ketones herbicide, belongs to HPPD suppressions Class herbicide processed, researched and developed successfully in 2007 by Bayer.The same, the activity of weeding of ring sulphur ketone with other HPPD suppression class herbicides Showed by 4- medical midbodies of para (ortho)-hydroxybenzoic acetone acid esters dual oxide enzyme (HPPD) inhibitor, after HPPD is suppressed, mitogenetic group of weeds Knit middle tyrosine accumulation and plastoquinone lacks, after 3-5 days, yellow symptom occur in weeds, finally spread to whole strain, and weeds albefaction is dead Die.

Clopyralid English common name Clopyralid, molecular formula C6H4ClNO2, chemical name：3,6-dichloro pyrrole Pyridine-2-carboxylic acid.Clopyralid is a kind of artificial synthesized auxin, its chemical constitution and many natural plants Thing growth hormone is similar, but has more preferable persistence in the tissue of plant.It is mainly inhaled by the root and leaf of plant Receive and then conducted in plant, so its conductive performance is stronger.After weeds dispenser, it is by the blade of plant or root Absorb, moved up and down in plant and be transmitted to whole plant rapidly.The clopyralid of low concentration can stimulate plant It is destroyed to finally result in tube bank so as to cause fissional out of control and random growth for the synthesis of DNA, RNA and protein；It is highly concentrated The clopyralid of degree can then suppress the division and growth of cell.

In actual use, reed of the ring sulphur ketone to corn field, lady's-grass special efficacy, but to the wealthy weeds in part, nutgrass flatsedge Effect is not satisfactory；Clopyralid is used for corn field, can effectively prevent and kill off most of broad leaved weeds and grassy weed.Therefore, Ring sulphur ketone, clopyralid are carried out rational mixture by inventor, can play the herbicide characteristic of ring sulphur ketone, and and can makes up its weeding The deficiency of characteristic.With notable synergy, expand the effect of control of weeds spectrum, a dispenser can prevent and kill off corn field grass family, Sha Careless section and broad leaved weed, spraying times are reduced, the effect of cost accounting are reduced, to corn safety.

The content of the invention

It is an object of the invention to provide a kind of component is reasonable, herbicidal spectrum is wide, and preventive effect is good, and drug cost is low, is not likely to produce The herbicidal composition of the drug-fast ketone of sulphur containing ring and clopyralid.

It is miscellaneous for preventing and kill off corn field grassy weed, broad-leaved it is another object of the present invention to provide above-mentioned composition Purposes in grass and sedge weed.

In order to solve the above technical problems, the present invention is achieved by the following technical solutions：

The present invention is a kind of ketone of sulphur containing ring and the herbicidal composition of clopyralid, including contains active component ring sulphur ketone And clopyralid, the weight ratio between the two are 32：1~1：32.

Further, the weight ratio between both the ring sulphur ketone and clopyralid is 8：1~1：8；The herbicide group Remaining component outside compound active principle prepares complementary component for agricultural chemicals used additives and preparation.

Further, the cumulant of the ring sulphur ketone and clopyralid for the composition total weight 0.1%~ 80%.

Further, the cumulant of the ring sulphur ketone and clopyralid is the 2%~20% of the composition total weight.

Further, it is configured to formulation during the composition application.

Further, the combination dosage form be water dispersible granules, wettable powder, pulvis, granule, suspending agent, can Scattered oil-suspending agent.

A kind of application of the herbicidal composition of the ketone of sulphur containing ring and clopyralid, the herbicidal composition are preventing and kill off jade Application in rice field weed.

According to method known in those skilled in the art, the herbicidal composition of the ketone of sulphur containing ring and rimsulfuron of the invention Can be configured to any formulation agriculturally allowed during practical application, preparation formulation be water dispersible granules, wettable powder, pulvis, Granule, suspending agent, dispersible oil-suspending agent.

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 pulvis, 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, 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 BY series emulsifying agent (BY-110, BY-125, BY-140), 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.

The invention has the advantages that：

1st, instant component is reasonable, activity when preventive effect is administered alone better than each component, has synergistic effect, expands weeds Corn field grass family, Cyperaceae and broad leaved weed are prevented and kill off in preventing and treating spectrum, a dispenser, reduce spraying times, are reduced cost accounting, are subtracted The generation of slow Weed Resistance, it is good to crop safety, meet the security requirement of pesticidal preparations.

2nd, the present invention has preferable preventive effect to corn field grassy weed, broad leaved weed and sedge weed.

Certainly, any product for implementing the present invention it is not absolutely required to reach all the above advantage simultaneously.

Embodiment

Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Based in the present invention Embodiment, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of protection of the invention.

In order to prevent and treat corn field broad leaved weed, grassy weed and the sedge weed in agricultural production, inventor is with ring Sulphur ketone and clopyralid 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% ring sulphur ketone active compound；95% clopyralid active compound.

1.2 for examination weeds

Field bindweed Convolvulus arvensis L. (broad leaved weed)

Rhizome of nutgrass flatsedge Cyperus rotundus L. (sedge weed)

Barnyard grass Echinochloa crus-galli. (grassy weed)

1.3 experimental design

The experiment sets 24 processing altogether, its middle ring sulphur ketone and clopyralid set 0.125 respectively, 0.25,0.5,1.0, 2.0th, 4.0 grams/ha of 6 dosage processing, ring sulphur ketone is mixed with both clopyralids set up separately 4.0+0.125,2.0+0.125, 1.0+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+2.0,0.125+4.0 grams/ha of 11 dosage ratios processing, 1 auxiliary agent control is separately set, 24 processing is set altogether, repeats Four times.

1.4 test method

Medicament is using now with the current, after active compound uses dmso solution, adds Tween 80 emulsifying agent, it is female to prepare 10% 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 corn of herbicide will be not used The soil that Tanaka adopts back is air-dried, basin is filled after sieving, and dry ground is quantified at 4/5 in basin, soil pH value 7.0, the content of organic matter 1.2%. Each about 30 uniform program requests are in soil surface, blinding after field bindweed that last year field is gathered, the rhizome of nutgrass flatsedge, the immersion of barnyard grass seed 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. Put in weeds field bindweed, the rhizome of nutgrass flatsedge, barnyard grass 3-5 leaves in spray tower spray (ASS-1 type pesticide spraying systems, DG8003 shower nozzles, Atomisation pressure 2.75MPA, spouting liquid 40kg/ mu), dispenser preserves 3cm water layers after one day, is placed in greenhouse and cultivates observation.

1.5 weedy rices and analysis method

Growth conditions, poisoning symptom and the poisoning degree of periodical visual inspection observation weeds, record symptom of chemical damage, after medicine after dispenser 14 days reasonability matched with 21 days type of action using the mixed medicament of Colby method evaluations, further discussion.

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, the two mixed synergy type to weeds of evaluation.

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

Theoretical survival rate E0=XY/100 (n-1)

X represents that herbicide 1 is the Weed-control effect of ring sulphur ketone

Y represents that herbicide 2 is the Weed-control effect of clopyralid

N represents that mixture herbicide kind is total (2)

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 handled using ring sulphur ketone single dose is slowed down, and field bindweed, the rhizome of nutgrass flatsedge start yellow occur Symptom is withered until dead therewith, and the barnyard grass terminal bud of dispenser dichloropyridine acid treatment in 7 days reddens, and starts dead, field bindweed, rhizoma cyperi Sub- terminal bud has the different degrees of symptom that reddens.

14 days visual observations after 2.2 medicines

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

The ring sulphur ketone clopyralid of table 1 uses the visual observation (level) of 14 days field bindweeds after medicine with

The ring sulphur ketone clopyralid of table 2 uses the visual observation (level) of 14 days rhizome ofs nutgrass flatsedge after medicine with

The ring sulphur ketone clopyralid of table 3 uses the visual observation (level) of 14 days barnyard grasses after medicine with

21 days investigation results after 2.3 medicines

The ring sulphur ketone clopyralid of table 4 is mixed to the actual survival rate of field bindweed and theoretical survival rate

The mixed virulence to field bindweed of ring sulphur ketone, clopyralid：Ring sulphur ketone is preferable to the preventive effect of field bindweed, is medicament Susceptible weeds, clopyralid are general to the preventive effect of field bindweed, with the increase of ring sulphur ketone, clopyralid dosage, after using with The preventive effect of field bindweed is improved.Actual preventive effect difference is generally higher than 10% after using with as seen from Table 4, to field bindweed after the two is mixed Preventive effect be in synergistic effect.

The mixed actual survival rate to the rhizome of nutgrass flatsedge of the ring sulphur ketone clopyralid of table 5 and theoretical survival rate

The mixed virulence to the rhizome of nutgrass flatsedge of ring sulphur ketone, clopyralid：Ring sulphur ketone, clopyralid are to the preventive effect one of the rhizome of nutgrass flatsedge As, with the increase of ring sulphur ketone, clopyralid dosage, the preventive effect of the rhizome of nutgrass flatsedge is greatly improved after using with.Use with as seen from Table 5 Actual preventive effect difference afterwards is generally higher than 10%, is in synergistic effect to the preventive effect of the rhizome of nutgrass flatsedge after the two is mixed.

The mixed actual inhibiting rate to barnyard grass of the ring sulphur ketone clopyralid of table 6 and theoretical inhibiting rate

The mixed virulence to barnyard grass of ring sulphur ketone, clopyralid：Ring sulphur ketone is excellent to the preventive effect of barnyard grass, is the sensitivity of medicament Weeds, clopyralid have stronger inhibitory action to barnyard grass, with the increase of ring sulphur ketone, clopyralid dosage, after using with The preventive effect of barnyard grass is greatly improved.Actual preventive effect difference after using with as seen from Table 6 is generally higher than 10%, to barnyard grass after the two is mixed The preventive effect of grass is in synergistic effect.

As can be seen from the above test results, ring sulphur ketone, clopyralid are used with, to field bindweed, the rhizome of nutgrass flatsedge, barnyard grass in increasing Effect acts on, mixed to expand herbicide controlling spectrum, delays Weed Resistance, reduces ring sulphur ketone and both clopyralids single dose content, carry High total preventive effect, reduces application cost, safer to crop, and the two mixed has certain feasibility in production.

Present invention is further illustrated with reference to embodiment.

Example of formulations 1

Weighing 40% ring sulphur ketone, 40% clopyralid, 3%TERSPERSE 2700, (poly- carboxylic hydrochloric acid, U.S.'s Hensel step public affairs Department 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 frequent Method i.e. mixing, ultra micro air-flow crushing, mixing, the granulation step of regulation water intaking dispersible granule produces 80% ring sulphur ketone dichloro pyrrole Pyridine sour water dispersible granule.

Example of formulations 2

Weigh 2% ring sulphur ketone, 64% clopyralid, 3%TERSPERSE 2700,4% sodium lignin sulfonate, 1% drawing Open powder BX, 1%K-12,1% carboxymethyl cellulose, 3% urea, diatomite and add to 100% parts by weight.The frequent regulation of above-mentioned raw materials The method of water intaking dispersible granule i.e. mixing, ultra micro air-flow crushing, mixing, granulation step produces 66% ring sulphur ketone clopyralid Water dispersible granules.

Example of formulations 3

Weigh 32% ring sulphur ketone, 1% clopyralid, 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 i.e. mixing, ultra micro air-flow crushing, mixing, granulation step produces 33% ring sulphur ketone clopyralid water dispersible granules.

Example of formulations 4

Weigh 20% ring sulphur ketone, 2.5% clopyralid, 4%Morwet D-425 (alkylnaphthalene sulfonate, Aksu promise Bel produce), 3% dispersing agent NNO, 2% Nekal BX, 2%K-12,2% polyvinylpyrrolidone, 0.5% xanthans, kaolinite Soil adds to 100% parts by weight.The method of above-mentioned raw materials frequent regulation water intaking dispersible granule be mixing, ultra micro air-flow crushing, mixing, Granulation step produces 22.5% ring sulphur ketone clopyralid water dispersible granules.

Example of formulations 5

Weigh 3% ring sulphur ketone, 24% clopyralid, 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 27% ring sulphur ketone dichloro pyrrole is made after air-flow crushing Pyridine acid wettable powder.

Example of formulations 6

10% ring sulphur ketone, 28% clopyralid, 4% calcium lignosulfonate, 3%TERSPERSE 2700,2% is weighed to draw Open powder BX, 1%K-12,3% White Carbon black, precipitated calcium carbonate and add to 100% parts by weight.Above-mentioned raw materials are blended, after air-flow crushing 38% ring sulphur ketone clopyralid wettable powder is made.

Example of formulations 7

Weigh 23% ring sulphur ketone, 12% clopyralid, 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 35% ring sulphur ketone clopyralid wettable powder.

Example of formulations 8

Weigh 15% ring sulphur ketone, 5% clopyralid, 4% sodium lignin sulfonate, 2%TERSPERSE 2700,2%K- 12nd, 3% White Carbon black, clay add to 80% parts by weight.Above-mentioned raw materials are blended, and 20% ring sulphur ketone dichloro is made after air-flow crushing Pyridine acid wettable powder.

Example of formulations 9

Weigh 58% ring sulphur ketone, 24% clopyralid, 5% White Carbon black, kaolin and add to 100% parts by weight.Above-mentioned original Expect blended, obtained 82% ring sulphur ketone clopyralid pulvis after air-flow crushing.

Example of formulations 10

Weigh 25% ring sulphur ketone, 25% clopyralid, 10% diatomite, talcum powder and add to 100% parts by weight.Above-mentioned original Expect blended, obtained 50% ring sulphur ketone clopyralid pulvis after air-flow crushing.

Example of formulations 11

26% ring sulphur ketone, 13% clopyralid, 3% paraffin, 1% White Carbon black, 1% iron oxide, sand is weighed to add to 100% parts by weight.It is standby by ring sulphur ketone, clopyralid and White Carbon black co-grinding into female powder in coating method granulation above-mentioned raw materials With；Paraffin hot melt is in a liquid state penetrating to wash and drying and preheating is to 50 DEG C of sands, and it is well mixed after, female powder is added, stirred Mix 5~10 minutes, cool to normal temperature, 239% ring sulphur ketone clopyralid granule is made.

Example of formulations 12

Weigh 2% ring sulphur ketone, 8% clopyralid, 15% starch, 0.5% polyvinylpyrrolidone, 1% iron oxide, light Matter calcium adds to 100% parts by weight.Extrude granulation granulation.Above-mentioned raw materials are blended, after air-flow crushing, add water to mediate, are squeezed into Grain, and dry, sieve, 10% ring sulphur ketone clopyralid granule is made.

Example of formulations 13

Weigh 8% ring sulphur ketone, 12% clopyralid, 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% ring sulphur ketone is made after being sanded with sand mill Clopyralid suspending agent.

Example of formulations 14

Weigh 5% ring sulphur ketone, 5% clopyralid, 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 add to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 10% ring sulphur ketone two is made after being sanded with sand mill Chloropyridine acid suspending agent.

Example of formulations 15

Weigh 6% ring sulphur ketone, 10% clopyralid, 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 add to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, after being sanded with sand mill 16% ring sulphur ketone clopyralid suspending agent is made.

Example of formulations 16

Weigh 20% ring sulphur ketone, 10% clopyralid, 3% Nongru-700 #, 2% agriculture breast 1601#, 1.5%TERSPERSE 2500th, 0.5%TERSPERSE 2425,0.2% xanthans, 3% white carbon, 5% ethylene glycol, 0.3% benzoic acid, 0.5% have Machine silicon defoaming agent, deionized water add to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, uses sand mill 30% ring sulphur ketone clopyralid suspending agent is made after sand milling.

Example of formulations 17

Weigh 3% ring sulphur ketone, 2% clopyralid, 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 5% ring sulphur is made after being sanded with sand mill The dispersible oil-suspending agent of ketone clopyralid.

Example of formulations 18

Weigh 13% ring sulphur ketone, 3% clopyralid, 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 It is blended to state raw material, high speed shear disperses 30min, and it is dispersible that 16% ring sulphur ketone clopyralid is made after being sanded with sand mill Oil-suspending agent.

Example of formulations 19

Weigh 4% ring sulphur ketone, 6% clopyralid, 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 10% ring sulphur is made after being sanded with sand mill The dispersible oil-suspending agent of ketone clopyralid.

Example of formulations 20

Weigh 5% ring sulphur ketone, 25% clopyralid, 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 30% ring sulphur is made after being sanded with sand mill The dispersible oil-suspending agent of ketone clopyralid.

The Control Weeds in Maize Field field control effectiveness test of biological examples 1

Inventor has carried out 30% ring sulphur ketone clopyralid on June 1st, 2016 in Xiuzhou City, Anhui Province corn field Experiment of (5%+25%) suspending agent to corn field weed.Field main weeds have lamb's-quarters, amaranth, field bindweed, barnyard grass and the rhizome of nutgrass flatsedge, miscellaneous Blade of grass age is in 2~4 leaf phases.Test medicine and dosage be the dispersible oil-suspending agent 20ml/ mus of 30% ring sulphur ketone clopyralid, 30ml/ mus, 40ml/ mus, the 6% dispersible oil suspending agent 60ml/ mus of ring sulphur ketone, 30% clopyralid aqua 50ml/ mus.Using normal Advise spray-on process.

The dispersible oil-suspending agent of ring sulphur ketone clopyralid of table 7 30% is to corn field weed preventive effect

The dispersible oil-suspending agent of ring sulphur ketone clopyralid of table 8 30% is to corn field weed preventive effect

The dispersible oil suspending agent of ring sulphur ketone clopyralid of table 9 30% is to corn field weed preventive effect

Result of the test shows：30 after the dispersible oil suspending agent 30ml/ mus of 30% ring sulphur ketone clopyralid, 40ml/ mu medicines Its average strain preventive effect and fresh weight preventive effect to lamb's-quarters, field bindweed, amaranth, the rhizome of nutgrass flatsedge, barnyard grass is all remarkably higher than the ring sulphur ketone of comparison medicament 6% Dispersible oil suspending agent 60ml/ mus, 30% clopyralid aqua 50ml/ mus, have after illustrating two medicament mixtures in crop field in Obvious synergistic effect, while drug cost has been saved, expand control of weeds spectrum.

The Control Weeds in Maize Field field control effectiveness test of biological examples 2

Inventor has carried out 38% ring sulphur ketone dichloro acid on June 25th, 2017 in Anhui Province Huoqiu County corn field Experiment of (10%+28%) wettable powder to corn field weed.Field main weeds have lamb's-quarters, field bindweed, amaranth, barnyard grass and rhizoma cyperi Son, weed size is in 2~4 leaf phases.Test medicine and dosage be 38% ring sulphur ketone clopyralid wettable powder 12g/ mus, 16g/ mus, 20g/ mus, the 6% dispersible oil-suspending agent 60ml/ mus of ring sulphur ketone, 30% clopyralid agent 50ml/ mus.Using routine Spray-on process.

The ring sulphur ketone clopyralid wettable powder of table 10 38% is to corn field weed preventive effect

The ring sulphur ketone clopyralid wettable powder of table 11 38% is to corn field weed preventive effect

The ring sulphur ketone clopyralid wettable powder of table 12 38% is to corn field weed preventive effect

Result of the test shows：After 38% ring sulphur ketone clopyralid wettable powder 12g/ mus, 16g/ mu medicines 30 days it is right Lamb's-quarters, amaranth, field bindweed, the rhizome of nutgrass flatsedge, average the strain preventive effect and fresh weight preventive effect of barnyard grass are above the dispersible oil of ring sulphur ketone of comparison medicament 6% Suspension 60ml/ mus, 30% clopyralid aqua 50ml/ mus, illustrate there is obvious increasing in crop field after two medicament mixtures Effect acts on, while saves drug cost.

In summary, instant component is reasonable, and activity when preventive effect is administered alone better than each component, field control effectiveness test is tested 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, spraying times are reduced, reduce cost accounting, slow down the generation of Weed Resistance, it is good to crop safety, meet pesticidal preparations Security requirement.

In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means At least one implementation of the present invention is contained in reference to specific features, structure, material or the feature that the embodiment or example describe In example or example.In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term. Moreover, specific features, structure, material or the feature of description can close in any one or more embodiments or example Suitable mode combines.

Present invention disclosed above preferred embodiment is only intended to help and illustrates the present invention.Preferred embodiment is not detailed All details are described, it is only described embodiment also not limit the invention.Obviously, according to the content of this specification, It can make many modifications and variations.This specification is chosen and specifically describes these embodiments, is to preferably explain the present invention Principle and practical application so that skilled artisan can be best understood by and utilize the present invention.The present invention is only Limited by claims and its four corner and equivalent.

Claims (7)

1. herbicidal composition and its application of a kind of ketone of sulphur containing ring and clopyralid, it is characterised in that：Contain active component Ring sulphur ketone and clopyralid, the weight ratio between the two are (32：1)~(1：32).

2. the herbicidal composition of a kind of ketone of sulphur containing ring according to claim 1 and clopyralid, it is characterised in that institute It is (8 to state the weight ratio between both ring sulphur ketone and clopyralid：1)~(1：8)；Outside the herbicidal composition active principle Remaining component is that agricultural chemicals used additives and preparation prepare complementary component.

3. the herbicidal composition of a kind of ketone of sulphur containing ring according to claim 1 or 2 and clopyralid, its feature exist In the cumulant of the ring sulphur ketone and clopyralid is the 0.1%~80% of the composition total weight.

4. the herbicidal composition of a kind of ketone of sulphur containing ring according to claim 3 and clopyralid, it is characterised in that institute The cumulant for stating ring sulphur ketone and clopyralid is the 2%~20% of the composition total weight.

5. the herbicidal composition of a kind of ketone of sulphur containing ring according to claim 1 and clopyralid, it is characterised in that institute Formulation is configured to when stating composition application.

6. the herbicidal composition of a kind of ketone of sulphur containing ring according to claim 1 and clopyralid, it is characterised in that institute Combination dosage form is stated as water dispersible granules, wettable powder, pulvis, granule, suspending agent, dispersible oil-suspending agent.

7. the application of the herbicidal composition of a kind of ketone of sulphur containing ring and clopyralid as described in claim 1-6 is any one, Characterized in that, application of the herbicidal composition in Control Weeds in Maize Field.