CN105028448B - A kind of ternary weeding composition containing florasulam - Google Patents

Abstract

The invention discloses a kind of ternary weeding composition containing florasulam and its application, effective active composition is made up of the first active component nicosulfuron, the second active component florasulam and the 3rd active component atrazine, nicosulfuron accounts for Herbicidal combinations weight percentage as 0.1%~30%, it is 0.1%~20% that florasulam, which accounts for Herbicidal combinations weight percentage, and atrazine accounts for Herbicidal combinations weight percentage as 0.1%~50%.This composition can be configured to suspending agent, dispersible oil-suspending agent, water dispersible granules, wettable powder, soluble powder, missible oil, microemulsion, the aqua agriculturally allowed.Instant component is reasonable, it is good in cornfield weeding effect, and its activity and herbicidal effect are not the simple superposition of each component activity, compared with existing unitary agent or binary built preparation, in addition to significant herbicidal effect, and there is significant synergistic effect, dosage is reduced, herbicide controlling spectrum increases, good to crop safety.

Description

A kind of ternary weeding composition containing florasulam

Technical field

The present invention relates to a kind of Herbicidal combinations of corn field, gone by active component nicosulfuron, florasulam and green bristlegrass Tianjin and auxiliary agent composition, belong to technical field of compounded pesticide.

Background technology

China's corn planting is concentrated mainly on northeast, North China and southwest, substantially forms one from northeast to southwest Plagioclase maize culture band.Wherein Heilungkiang, Jilin, Liaoning, Hebei, Shandong, Shanxi, Henan, Shaanxi, Sichuan, Guizhou, Yunnan, Guangxi etc. is main provinces and regions.Corn field weed occurs universal, and weeds species is various, mainly there is broad leaved weedses such as purslane, anti- Branch amaranth, acalypha copperleaf, lamb's-quarters, piemarker, Siberian cocklebur, black nightshade, field bindweed, field thistle, dayflower etc.；Grassy weed for example lady's-grass, green bristlegrass, Eleusine indica, barnyard grass, Bermuda grass etc.；Sedge weed such as rhizome of nutgrass flatsedge etc..Weeds and crop contention moisture, nutrient, illumination and space, Crop normal growth is influenceed, or even Severe Reduction can be caused.It is chemical weed control economy, effective, laborsaving, but due to most of weeding Agent herbicide controlling spectrum itself is limited, and long-term use easily causes the generation of Weed Resistance, and the different herbicide of the mechanism of action is mixed With, it is possible to increase herbicidal effect and herbicide controlling spectrum, the generation for delaying Weed Resistance.

Nicosulfuron, sulfonylurea herbicide, English name nicosulfuron, chemical name are：2-（4,6- diformazans Epoxide pyrimidine -2 --amino formamido sulphonyl）- N, N- dimethyl nicotinamide.Nicosulfuron is absorbability, high efficiency corn weeding Agent, it is miscellaneous to broad leaved weed and Cyperaceae with can effectively prevent and kill off a variety of annual gramineous weeds in corn field after low dosage bud Grass also has certain preventive effect.It is absorbed rapidly by leaf and root, and is conducted rapidly by xylem and bast.Pass through acetolactic acid Synzyme prevents the synthesis of branched-chain amino acid.Being stopped growing immediately using rear weeds, 4~5 days young leaves fade, necrosis, and by Step expands to whole plant, and plant death in 20~25 days is handled under general condition.The medicine not only has cauline leaf process effect, also has There is activity of weeding before bud.Corn has preferable drug resistance to the medical instrument, occurs temporary transient chlorisis or slight hypoevolutism after processing, But it can typically recover rapidly and the not underproduction.

Florasulam, English name florasulam, chemical name are：The fluoro- 5- ethyoxyls -8- fluorine of 2', 6'- bis- [1,2,4] triazole [1,5-c] pyrimidine -2- sulfonanilides.Florasulam is that triazolopyrimidine sulfonamides inner sucting conduction type surpasses Highy potent herbicide, it can conduct to weeds complete stool, thus herbicide is thorough, will not recur.Efficacy stability at low temperature, even Stable drug effect is still ensured that at 2 DEG C, this point is that other herbicides are incomparable.Broad leaved weed is prevented and kill off for corn field.It is double Penoxsulam broad weed-killing spectrum, the most of broad leaved weeds of corn field, including purslane, Amaranthus retroflexus, acalypha copperleaf, Siberian cocklebur, field can be prevented and kill off The difficult anti-weeds such as japanese bearbind, field thistle, dayflower, and the lamb's-quarters to being most difficult to prevent and kill off in corn field, piemarker, Siberian cocklebur, black nightshade, field bindweed, Field thistle, there is extraordinary inhibitory action.

Atrazine, English name atrazine, chemical name are：The chloro- 4- ethylamino-s -6- isopropylaminos -1,3,5- of 2- Triazine.Atrazine is selective inner sucting conduction type before seedling, herbicide after seedling, and based on root absorption, cauline leaf absorbs seldom, rapidly Plant meristem and leaf portion are transmitted to, interference photosynthesis makes weeds lethal.In the resistance crop body such as corn, by corn ketone Enzyme resolves into innocuous substance, thus to the safety such as corn.Its lasting period is longer, broad weed-killing spectrum, and it is annual miscellaneous to prevent and kill off corn field Grass, it is mainly preferable to the preventive effect of corn field broad leaved weed.Atrazine is easily eluted to soil deeper by rainwater, to some depths Root grass is also effective, but easily produces poisoning.When weeds generation density is higher, or plant is larger, it is difficult to thoroughly kill weeds. Dosage is big when atrazine is used alone, relatively poor to grassy weed effect, and second stubble crop wheat and other broad-leaveds are made Thing has certain influence.

Nicosulfuron, florasulam and atrazine triple combination, the advantage compared with binary combination are：With regard to the phonetic sulphur of cigarette Grand to add after atrazine with the binary combination of florasulam, can fill a vacancy nicosulfuron and florasulam are to spring maize The sealing process of field weed, newly unearthed weeds radix is reduced, reduces the demutation of weeds, while can solve the problem that purslane, Siberian cocklebur, field Japanese bearbind, field thistle are waited for death the not thorough problem of grass；And florasulam is added compared with nicosulfuron and the advantage of atrazine binary combination Be can strengthen for example wild muskmelon seedling of resistance broad leaved weed effect to summer corn and Spring Maize, piemarker, Siberian cocklebur, black nightshade it is anti- Effect, additionally being able to, which strengthens drug effect, kills deep-rootedness weeds such as field thistle, field bindweed etc..

Applicant has found through retrieval, at present still without the combination of nicosulfuron, florasulam and atrazine three compounding Thing patent.Find, by the different nicosulfuron of the mechanism of action, florasulam and atrazine, have bright through experiment simultaneously Aobvious synergistic effect, the prevention effect to corn field weed is significantly improved, expand herbicide controlling spectrum, reduce dosage, reduce preventing and treating Cost, improve to crop safety.

The content of the invention

It is an object of the invention to provide a kind of component is reasonable, drug cost is low, and synergistic effect is notable, and herbicidal effect is good, Preventing and treating spectrum is wide, to the ternary weeding composition of crop safety.

Another object of the present invention is to provide the Herbicidal combinations preparation containing nicosulfuron, florasulam and atrazine Formulation.

It is still another object of the present invention to provide application of the above-mentioned composition on preventing and treating corn field weed.

The defects of in order to overcome existing unitary agent or two-spot to compound, the technical scheme of Herbicidal combinations of the present invention is so Solve：

A）First active component nicosulfuron；

B）Second active component florasulam；

C）3rd active component atrazine.

It is 0.1%~30% that first active component, which accounts for Herbicidal combinations weight percentage, and the second active component accounts for weeding group Polymer weight percentage composition is 0.1%~20%, and the 3rd active component accounts for Herbicidal combinations weight percentage as 0.1%~50%.

The content sum of first active component, the second active component and the 3rd active component is the composition total weight 0.3%~65%.

A kind of Herbicidal combinations containing nicosulfuron, florasulam and atrazine of the present invention are according to the art technology The preparation formulation that method well known to personnel can be prepared is suspending agent, dispersible oil-suspending agent, water dispersible granules, wettable powder Agent, soluble powder, missible oil, microemulsion, aqua.

To suspending agent, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, alkyl naphthalene formaldehyde condensation Thing sulfonate, alkylphenol-polyethenoxy base ether phosphate, alkylphenol-polyethenoxy base ether sulfonate, phenethyl phenol polyoxyethylene groups Ether phosphate, alkyl polyoxyethylene ether sulfonate, polyoxyethylene polyoxypropylene base ether block copolymers, pull open powder, dodecyl It is one or more in polyoxyethylene ether phosphate；Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulfate, benzene second Base phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, alkylnaphthalene sulfonate, alkylphenol-formaldehyde resin polyoxy Vinethene, triphenoethyl benzene phenol polyoxyethylene polyoxypropylene block polymer are one or more；Thickener such as xanthans, polyethylene It is one or more in alcohol, bentonite, aluminium-magnesium silicate, carboxymethyl cellulose, carboxyethyl cellulose, methylcellulose；Preservative is such as It is one or more in formaldehyde, benzoic acid, sodium benzoate, potassium sorbate, OIT；Defoamer such as silicone oil, silicone chemical combination One or more in thing, C10-20 saturated fat acid compounds, C8-10 aliphatic alcohols, hexanol, butanol, octanol；Antifreezing agent Such as one or more in ethylene glycol, propane diols, glycerine, polyethylene glycol, sorbierite, urea, inorganic salts；Water is deionization Water.

To dispersible oil-suspending agent, workable auxiliary agent has：Dispersant for example polycarboxylate, alkylnaphthalene sulfonate, One or more in TERSPERSE 2425 (Huntsman Corporation of the U.S. produces, alkyl naphthalene sulfonic acid salt)；Emulsifying agent such as agriculture breast 700#（Common name：Alkylphenol formaldehyde APEO）, agriculture breast 2201, this disk -60（Common name：Sorbitol anhydride monostearate Ester）, Tween-60（Common name：Sorbitan fatty acid ester APEO）, agriculture breast 1601#（Common name：Triphenoethyl benzene Phenol polyoxyethylene polyoxypropylene block polymer）、TERSPERSE 4894（Huntsman Corporation of the U.S. produces）、TERSPERSE 2500（Huntsman Corporation of the U.S. produces）In one or more；Wetting agent such as alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphur Hydrochlorate, APES phosphate, phenethyl phenol polyoxyethylene groups ether phosphate, alkyl sulfate, alkylsulfonate, Naphthalene sulfonate, TERSPERSE 2500（Huntsman Corporation of the U.S. produces）Middle one or more；Thickener such as white carbon, polyethylene One or more in alcohol, bentonite, aluminium-magnesium silicate；Antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as chlorine Change the one or more in sodium；Decentralized medium such as one kind or more in soybean oil, rapeseed oil, corn oil, methyl oleate, castor oil Kind.

For water dispersible granules, workable auxiliary agent has：Dispersant such as polycarboxylate（TERSPERSE 2700、T36、 GY-D06 etc.）, it is lignosulfonates, one or more in alkylnaphthalene sulfonate；Wetting agent such as alkyl sulfate, alkyl sulfonic acid It is one or more in salt, naphthalene sulfonate；Disintegrant such as ammonium sulfate, sodium sulphate, polyvinylpyrrolidone, starch and its derivative, It is one or more in bentonite；Binding agent such as starch, glucose, polyvinyl alcohol, polyethylene glycol, sodium carboxymethylcellulose, sucrose In one or more；Filler such as diatomite, kaolin, white carbon, fine particle calcium carbonate, talcum powder, attapulgite, clay is a kind of or more Kind.

To wettable powder, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, polyoxyethylene gather Oxypropylene group ether block copolymers, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol-polyethenoxy base ether phosphate, poly alkyl alcohol It is one or more in oxygen ethene ether phosphate, alkylphenol-polyethenoxy base ether sulfonate；Wetting agent such as alkyl sulfate, alkyl sulphur It is one or more in hydrochlorate, alkylnaphthalene sulfonate；Filler such as ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white Carbon black, fine particle calcium carbonate, talcum powder, attapulgite, clay are one or more.

To soluble powder, workable auxiliary agent has：Dispersant such as polycarboxylate, lignosulfonates, polyoxyethylene gather Oxypropylene group ether block copolymers, alkyl naphthalene formaldehyde condensate sulfonates, alkylphenol-polyethenoxy base ether phosphate, poly alkyl alcohol It is one or more in oxygen ethene ether phosphate, alkylphenol-polyethenoxy base ether sulfonate；Wetting agent such as alkyl sulfate, alkyl sulphur It is one or more in hydrochlorate, alkylnaphthalene sulfonate；In filler such as ammonium sulfate, urea, sucrose, glucose, white carbon, inorganic salts One or more.

To missible oil, workable auxiliary agent has：Emulsifying agent such as calcium dodecyl benzene sulfonate（Agriculture breast 500#）, Nongru-700 #, agriculture Breast 2201, this disk -60#, emulsifying agent T-60（Common name：Anhydrous sorbitol single-hard ester acid ester APEO）、TX-10（It is general Name：Octyl phenol polyoxyethylene（10）Ether）, agriculture breast 1601#, agriculture breast 600#, agriculture breast 400#；Solvent such as dimethylbenzene, solvent naphtha（S- 150、S-180、S-200）, toluene, biodiesel, methylated vegetable oil, 1-METHYLPYRROLIDONE；Cosolvent such as ethyl acetate, Methanol, dimethylformamide, cyclohexanone, acetone, MEK；Stabilizer such as triphenyl phosphite, epoxychloropropane, aceticanhydride.

To microemulsion, workable auxiliary agent has：Emulsifying agent such as calcium dodecyl benzene sulfonate（Agriculture breast 500#）, Nongru-700 #, Agriculture breast 2201, this disk-60#, polysorbate60-#, TX-10, agriculture breast 1601（Common name：Phenethyl phenol polyoxyethylene polyoxypropylene Ether）, agriculture breast 600#, agriculture breast 400#；Assistant for emulsifying agent such as methanol, isopropanol, n-butanol, ethanol；Solvent such as cyclohexanone, N- methyl pyrroles Pyrrolidone, dimethylbenzene, toluene, solvent naphtha（The trade mark：S-150、S-180、S-200）；Stabilizer such as triphenyl phosphite, epoxy chlorine Propane；Water is deionized water.

To aqueous emulsion, workable auxiliary agent has：Emulsifying agent such as Nonyl pheno（EO=10）Ether phosphate, triphen second Base phenol polyoxyethylene phosphonate, Nongru-700 #（Common name：Alkyl phenol formaldehyde resin polyoxyethylene ether）, agriculture breast 2201#, this Disk -60#（Common name：Span60）, Tween-60 #（Common name：Polyoxyethylene sorbitan stearic acid Ester）、TX-10（Common name：Octyl phenol polyoxyethylene（10）Ether）, agriculture breast 1601（Common name：Triphenoethyl benzene phenol polyoxypropylene gathers Oxygen ethylene block polymer）, it is agriculture breast 600#, one or more in agriculture breast 400#；Solvent such as dimethylbenzene, toluene, cyclohexanone, solvent Oil（The trade mark：S-150、S-180、S-200）It is one or more；Stabilizer such as triphenyl phosphite, epoxychloropropane, epoxy soybean It is one or more in oil；It is one or more in antifreezing agent such as ethylene glycol, propane diols, glycerine, urea, inorganic salts such as sodium chloride； It is one or more in thickener such as xanthans, polyvinyl alcohol, bentonite, aluminium-magnesium silicate；Preservative such as formaldehyde, benzoic acid, benzene first It is one or more in sour sodium；Water is deionized water.

Instant component is reasonable, and herbicidal effect is good, and drug cost is low, and its activity and herbicidal effect are not each component activity Simple superposition, but have significant synergistic effect, control of weeds spectrum can be expanded, delaying drug resistance is good to crop safety, meets The security requirement of pesticidal preparations.The present invention has good prevention effect to corn field weed.

Embodiment

Illustrate nicosulfuron, florasulam and atrazine to corn field weed below by Toxicity Determination Synergistic effect.

In order to prevent and treat corn field weed, we have carried out mutual compounding with nicosulfuron, florasulam and atrazine Synergy is studied, test method reference《People's Republic of China's agricultural chemicals indoor biologicals of agricultural industry criteria NY/T1155.4-2006 The part of determination test criterion herbicide the 4th：Active determination test cauline leaf spray-on process》With《People's Republic of China's agricultural industry The part of the farm-chemical indoor determination test rules of standard NY/T1155.7-2006 herbicide the 7th：The synergy of mixture is surveyed It is fixed》.

Subjects are corn field weed lady's-grass（Digitaria sanguinalis）, green bristlegrass（Setaria viridis）, field bindweed（Convolvulus arvensis）, multitude（Chenopodium album）.

The test medicine that active compound is configured to need, single dose and each compound drug are set into 5 various concentrations gradients first （It is different according to dosages distribution on the basis of pilot study result, concentration gradient set it is also different, prevent and kill off rate 5%~ Set in the range of 90% by geometric progression）.If clear water compares, it is repeated 4 times.Using after seedling spray-on process, get ready in advance for examination weeds Seedling（It is sowed at by every 50 weed seeds of alms bowl in experiment basin alms bowl, it is fixed 40 plants per alms bowl until growing to for 3 leaf phase）, the medicine that will dilute Agent is uniformly sprayed onto on weeds plant with laryngeal spray, to be uniformly thoughtfully defined, after insert greenhouse and normally cultivate, 21 after processing It calculates the preventive effect of each chemicals treatment with ocular estimate, passes through linear time between the probit value of preventive effect and the logarithm value of series concentration Return analysis, obtain the ED of each medicament₅₀ Value, the co-toxicity coefficient of mixture is calculated with the abundant methods of Sun Yun（CTC）, evaluated with this for reagent Activity of the agent to weeds.

The co-toxicity coefficient of complex preparation（CTC）>=120 show as synergistic effect；CTC≤80 show as antagonism；80 ＜ CTC ＜ 120 show as summation action.

The nicosulfuron of table 1, florasulam combine the Toxicity Determination to lady's-grass with atrazine

The nicosulfuron of table 2, florasulam combine the Toxicity Determination to green bristlegrass with atrazine

The nicosulfuron of table 3, florasulam combine the Toxicity Determination to field bindweed with atrazine

The nicosulfuron of table 4, florasulam combine the Toxicity Determination to lamb's-quarters with atrazine

Toxicity Determination result shows：Three active components account for Herbicidal combinations weight percentage according to nicosulfuron For 0.1%~30%, florasulam accounts for Herbicidal combinations weight percentage as 0.1%~20%, and atrazine accounts for Herbicidal combinations Weight percentage is that 0.1%~50% ratio is used with, is had to the miscellaneous lady's-grass of grass family, green bristlegrass and broad leaved weed field bindweed, lamb's-quarters Preferable virulence, synergistic effect are obvious.

In order to which the present invention is better described, present invention is described further with reference to embodiment, in formula Percentage is weight percentage.

Example of formulations 1

0.1% nicosulfuron, 4.9% florasulam, 30% atrazine, 2% triphenoethyl benzene phenol polyoxypropylene is weighed to gather Oxygen ethylene block polymer, 2% polyoxyethylene polyoxypropylene base ether block copolymers, 1% aluminium-magnesium silicate, 0.2% carboxyethylcellulose Element, 5% glycerine, 0.5% benzoic acid, 0.5% silicone oil, deionized water add to 100% parts by weight.Above-mentioned raw materials are blended, cut at a high speed Cutting dissipates 30min, and 35% nicosulfuron florasulam atrazine suspending agent is made after being sanded with sand mill.

Example of formulations 2

Weigh 5% nicosulfuron, 10% florasulam, 25% atrazine, 2% alkyl phenol formaldehyde resin polyoxyethylene ether, 3% Negel, 0.2% carboxymethyl cellulose, 5% propane diols, 0.5% potassium sorbate, 0.5% butanol, deionized water add to 100% parts by weight.Above-mentioned raw materials are blended, and high speed shear disperses 30min, and 40% nicosulfuron is made after being sanded with sand mill Florasulam atrazine suspending agent.

Example of formulations 3

Weigh 6% nicosulfuron, 1.5% florasulam, 20% atrazine, 2% Negel, 4% agriculture breast 1601#, 3% This disk -60#, 4% agriculture breast 2201#, 1% sodium alkyl sulfonate, 0.5% aluminium-magnesium silicate, 5% propane diols, rapeseed oil add to 100% parts by weight. Above-mentioned raw materials are blended, and high speed shear disperses 30min, and the double fluorine sulphur grass of 27.5% nicosulfuron are made after being sanded with sand mill The dispersible oil-suspending agent of amine atrazine.

Example of formulations 4

Weigh 5% nicosulfuron, 5% florasulam, 20% atrazine, 2% Negel, 4% this disk -60#, 3% tell Temperature -60#, 4% Nongru-700 #, 1% sodium naphthalene sulfonate, 0.5% bentonite, 5% glycerine, small wheat oil add to 100% parts by weight.Above-mentioned raw materials Blended, high speed shear disperses 30min, and 30% nicosulfuron florasulam atrazine is made after being sanded with sand mill can Scattered oil-suspending agent.

Example of formulations 5

Weigh 3% nicosulfuron, 7% florasulam, 50% atrazine, 2% GY-D06（Polycarboxylate）, 1% diffusant NNO（Alkylnaphthalene sulfonate formaldehyde condensation products）, 1% Nekal BX（Nekal）, 1% sodium alkyl sulfonate, 0.5% form sediment Powder, fine particle calcium carbonate add 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 produce 60% nicosulfuron florasulam atrazine water dispersible granule.

Example of formulations 6

Weigh 4% nicosulfuron, 0.5% florasulam, 20% atrazine, 4% Negel, 2% diffusant NNO（Alkylnaphthalene sulfonate formaldehyde condensation products）, 2% Nekal BX（Nekal）, 2% sodium naphthalene sulfonate, 3% polyethylene Alcohol, 5% sulphur ammonium, clay add to 100% parts by weight.The method of the frequent regulation water intaking dispersible granule of above-mentioned raw materials mixes, ultra micro gas Stream is crushed, mixed, granulation step produces 24.5% nicosulfuron florasulam atrazine water dispersible granule.

Example of formulations 7

Weigh 15% nicosulfuron, 5% florasulam, 45% atrazine, 5% polycarboxylic acids calcium, 2% fatty alcohol polyoxy second Alkene ether phosphate, 2% lauryl sodium sulfate, 5% talcum powder, diatomite add to 100% parts by weight.Above-mentioned raw materials are blended, gas 65% florasulam nicosulfuron atrazine wettable powder is made after crushing in stream.

Example of formulations 8

Weigh 10% nicosulfuron, 10% florasulam, 15% atrazine, 4% polyoxyethylene polyoxypropylene base ether block Copolymer, 3% alkylphenol-polyethenoxy base ether phosphate, 2% alkylphenol-polyethenoxy base ether sulfonic acid sodium, 2% sodium alkyl sulfonate, 3% White Carbon black, attapulgite add to 100% parts by weight.Above-mentioned raw materials are blended, and 35% nicosulfuron is made after air-flow crushing Florasulam atrazine wettable powder.

Example of formulations 9

Weigh 30% nicosulfuron, 0.1% florasulam, 0.1% atrazine, 5% alkyl sulfonic acid calcium, 3% sulfomethylated lignin Sour calcium, 3% Nekal BX（Nekal）, 3% sodium alkyl sulfonate, sucrose adds to 100% parts by weight.Above-mentioned raw materials pass through Mix, 30.2% nicosulfuron florasulam atrazine soluble powder is made after air-flow crushing.

Example of formulations 10

Weigh 22% nicosulfuron, 12% florasulam, 11% atrazine, 4% polycarboxylic acids calcium, 3% TERSPERSE 2700（Polycarboxylate, Huntsman Corporation of the U.S. produce）, 2% Nekal BX（Nekal）、2%K-12（Dodecyl Sodium sulphate）, urea adds to 100% parts by weight.Above-mentioned raw materials are blended, and the double fluorine sulphurs of 45% nicosulfuron are made after air-flow crushing Careless amine atrazine soluble powder.

Example of formulations 11

Weigh 20% nicosulfuron, 20% florasulam, 10% atrazine, 3% agriculture breast 500#, 3% Nongru-700 #, 5% agriculture Newborn 1601#, 2% dimethylformamide, 2% epoxychloropropane, toluene add to 100% parts by weight.Above-mentioned raw materials are blended, and stirring is molten The completely rear obtained 50% nicosulfuron florasulam atrazine missible oil of solution.

Example of formulations 12

Weigh 14% nicosulfuron, 15% florasulam, 26% atrazine, 3% Nongru-700 #, 3% agriculture breast 2201,5% this Disk -60#, 2% cyclohexanone, 2% triphenyl phosphite, dimethylbenzene add to 100% parts by weight.Above-mentioned raw materials are blended, and stirring and dissolving is complete Obtained 55% nicosulfuron florasulam atrazine missible oil after complete.

Example of formulations 13

Weigh 5% nicosulfuron, 10% florasulam, 12% atrazine, 3% agriculture breast 2201,2% polysorbate60-#, 3% positive fourth Alcohol, 3% dimethylbenzene, 1% epoxychloropropane, deionized water add to 100% parts by weight.27% cigarette is made after the agitated mixing of above-mentioned raw materials Sulfometuron Methyl florasulam atrazine microemulsion.

Example of formulations 14

Weigh 10% nicosulfuron, 5% florasulam, 25% atrazine, 3% Nongru-700 #, 2% this disk -60#, 3% isopropyl Alcohol, 3% toluene, 3% cyclohexanone, 1% triphenyl phosphite, deionized water add to 100% parts by weight.After the agitated mixing of above-mentioned raw materials 40% nicosulfuron florasulam atrazine microemulsion is made.

Example of formulations 15

It is big to weigh 15% nicosulfuron, 3% florasulam, 17% atrazine, 5% agriculture breast 2201#, 2% toluene, 1% epoxy Soya-bean oil, 2% glycerine, 5% polyvinyl alcohol, 0.2% sodium benzoate, deionized water add to 100% parts by weight.Above-mentioned raw materials are well mixed, 35% nicosulfuron florasulam atrazine aqueous emulsion is made after high-speed stirred.

Example of formulations 16

It is big to weigh 13% nicosulfuron, 8% florasulam, 9% atrazine, 5% Tween-60 #, 2% dimethylbenzene, 1% epoxy Soya-bean oil, 2% propane diols, 5% bentonite, 0.2% benzoic acid, deionized water add to 100% parts by weight.Above-mentioned raw materials are well mixed, high 30% nicosulfuron florasulam atrazine aqueous emulsion is made after speed stirring.

Biological Examples 1：Prevent and treat corn field weed field control effectiveness test.

In 2014, in Xi'an City, Shanxi Province Lintong District, Guo Yang villages in town carried out example of formulations 2 to inventor with one voice（40% cigarette Sulfometuron Methyl florasulam atrazine suspending agent）, example of formulations 3（27.5% nicosulfuron florasulam green bristlegrass is gone The dispersible oil-suspending agent in Tianjin）, example of formulations 4（The 30% dispersible oil-suspending agent of nicosulfuron florasulam atrazine）、 Example of formulations 6（24.5% nicosulfuron florasulam atrazine water dispersible granule）, example of formulations 8（35% cigarette is phonetic The grand florasulam atrazine wettable powder of sulphur）, example of formulations 10（45% nicosulfuron florasulam green bristlegrass Remove Tianjin soluble powder）, example of formulations 11（50% nicosulfuron florasulam atrazine missible oil）, example of formulations 13（27% nicosulfuron florasulam atrazine microemulsion）, example of formulations 15（The double fluorine sulphur grass of 35% nicosulfuron Amine atrazine aqueous emulsion）Corn field weed field control effectiveness test is prevented and treated, demonstrates preventing and treating effect of the medicament to corn field weed Fruit and the security to corn.

Trial crops are corn, and controlling object is corn field annual broadleaf weed and grassy weed, and weed size is 2 ~5 leaf phases.Experimental plot physical features is flat, and soil is loam, middle fertility, pH value 7.1.Test medicine and dosage refer to table 5.Separately set Blank control, 4 repetitions are often handled, per the ㎡ of cell 30, totally 64 cells, the random district's groups of cell arrange.Using conventional spray-on process, Mu dispenser liquid 45kg.

Table 5 prevents and treats corn field weed field control effectiveness test result

Table of field test results is bright, and above example of formulations has good prevention effect to corn field weed, presses 20ga.i./mu is sprayed 1 time, reaches more than 93% to the average preventive effect of 15 days after corn field weed medicine, hence it is evident that better than comparison medicine The dispersible oil-suspending agent 4.5ga.i./mu of the nicosulfuron florasulam of agent 5%, 25% nicosulfuron atrazine wettable powder The dispersible oil of agent 20.5ga.i./mu, 25% florasulam atrazine suspending agent 24ga.i./mu, 0.5% florasulam is outstanding Floating agent 0.5ga.i./mu, the dispersible oil-suspending agent 4ga.i./mu of 4% nicosulfuron, the dispersible oil-suspending agent of 20% atrazine The preventive effect of 20ga.i./mu.By being combined to 15 days significance difference analysis after medicine, nicosulfuron, florasulam with atrazine It is notable with other control treatment preventive effect othernesses.

Security survey：Observed during experiment, corn growth safety, no poisoning phenomenon occur all reagent agents.

In summary, composition of the invention is to use three kinds of active component compound schemes, and its activity and herbicidal effect are not It is the simple superposition of each component activity, compared with existing unitary agent or binary built preparation, there is significant herbicidal effect, Synergistic effect is notable, can be with delaying drug resistance, preparation less residue, and pollution-free to crop, security is good, meets the peace of pesticidal preparations Full property requirement.

Claims (5)

1. A kind of 1. ternary weeding composition containing florasulam, it is characterised in that：Active component is by nicosulfuron, double fluorine sulphurs grass Amine forms with atrazine, and it is 0.1%~30% that nicosulfuron, which accounts for Herbicidal combinations weight percentage, and florasulam accounts for weeding group Polymer weight percentage composition is 0.1%~20%, and atrazine accounts for Herbicidal combinations weight percentage as 0.1%~50%；The phonetic sulphur of cigarette The content sum of grand, florasulam and atrazine is the 0.3~65% of the composition total weight.
2. 2. the ternary weeding composition containing florasulam according to claim 1, it is characterised in that：Nicosulfuron, double fluorine The content sum of sulphur grass amine and atrazine is the 10~60% of the composition total weight.
3. 3. the ternary weeding composition containing florasulam according to claim 1, it is characterised in that：The combination dosage form For suspending agent, water dispersible granules, wettable powder, soluble powder, missible oil, microemulsion, aqua.
4. 4. purposes of the ternary weeding composition containing florasulam on preventing and treating corn field weed according to claim 1.
5. 5. purposes according to claim 4, corn field weed includes grassy weed and broad leaved weed.