CN102792956A - Herbicide composition including penoxsulam and azimsulfuron - Google Patents
Herbicide composition including penoxsulam and azimsulfuron Download PDFInfo
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- CN102792956A CN102792956A CN2011101330363A CN201110133036A CN102792956A CN 102792956 A CN102792956 A CN 102792956A CN 2011101330363 A CN2011101330363 A CN 2011101330363A CN 201110133036 A CN201110133036 A CN 201110133036A CN 102792956 A CN102792956 A CN 102792956A
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Abstract
The invention relates to a herbicide composition for preventing and eradicating weeds in farmlands and applications thereof, and particularly relates to a herbicide which is used for preventing and eradicating gramineae weeds, broadleaf weeds and cyperaceae weeds in rice fields. The herbicide composition is a binary herbicide mixture employing penoxsulam and azimsulfuron as active ingredients, wherein the weight ratio of penoxsulam to azimsulfuron is 1:15-30:1. The herbicide composition can be made into any preparation allowable in agriculture. The herbicide composition is used for preventing and eradicating weeds in the rice fields, has reasonable components, with the prevention effect being superior to the activity of each component applied separately, enlarges weed preventing and eradicating spectrum, reduces preventing and eradicating cost, slows down the generation of weed resistance, has good security for crops, and fits to the security requirement of pesticide preparations.
Description
[technical field]
The present invention relates to a kind of herbicidal composition that is used to prevent and treat weeds in paddy field; Be specifically related to a kind of weed killer herbicide that is used to prevent and treat grassy weed between the rice field, broad leaved weed and sedge weed, it is to be the binary herbicidal composition of active component by penoxsuam and azimsulfuron.
[background technology]
Paddy rice is one of China staple crops; Continuous expansion along with its cultivated area; The rice field crop smothering also day by day enlarges in the production that constantly enlarges; Endanger also seriously day by day, also become one of major subjects of modern agricultural herbicide research and can effectively control crop smothering in the paddy rice, stabilization of rice high yield.In recent years, the important technical links of rationally selecting for use herbicides for use in paddy to become to guarantee rice safety to produce, but because drug of choice is improper or operation technique is not in place, control efficiency is undesirable or cause phenomenon such as key to take place repeatedly.And large tracts of land continues to use in the rice field along with numerous weed killer herbicide kinds, has also produced problems such as the weeds resistance is outstanding, the especially perennial sedge weed harm of perennial weed is serious.So, more urgent for the demand of killing careless wide spectrum, selectivity weed killer herbicide kind strong, easy to use.
Penoxsuam is a kind of triazolopyrimidine sulfonamide weed killer herbicide, works through suppressing acetolactate synthestase (ALS), absorbs via grass cutting blade, sheath portion or root, conducts to meristematic tissue, causes weeds to stop growing, and yellow is dead then.The action target of this medicament is an acetolactate synthestase, but has notable difference with other ALS inhibitor effects.Be used to prevent and kill off barnyard grass in paddy field, moleplant seed and annual sedge weed, and many broad-leaveds and sedge weed and barnyard grass grass etc. are had residual activity.
Azimsulfuron is an inhibitor of acetolactate synthetase; Especially has a good restraining activity to the biochemistry of branched-chain amino acid (like valine, leucine, isoleucine) is synthetic; Hinder the division and the growth of weeds cell thus; Conduct through being absorbed in the plant body of weeds root and leaf then, weeds promptly stop growing, and are then withered.Because it can resolve into the metabolite of no activity of weeding rapidly in the paddy rice body, in weeds, be difficult for, thereby brought into play good activity of weeding and fool proof paddy rice by metabolism.
In actual use, penoxsuam has special efficacy to the barnyard grass between rice field grass, moleplant seed, but not satisfactory to part broad leaved weed, nutgrass flatsedge preventive effect; Azimsulfuron is as a kind of sulfonylurea herbicides for use in paddy; Broad-leaved, nutgrass flatsedge had preventive effect preferably; But owing to the resistance problem usage amount increases year by year, and invalid to grassy weed such as barnyard grass grass, moleplant seed etc., therefore; Need penoxsuam, azimsulfuron rationally are mixed, to reach synergy, reduce consumption, to enlarge the purpose of killing the grass spectrum.
[summary of the invention]
Technical problem to be solved by this invention is, the technical scheme of a kind of rice field compound herbicide composition is provided, and makes it can prevent and kill off grassy weed and can prevent and kill off broad leaved weed and sedge weed again, and can reduce the medicament usage amount and to rice safety.
The technical scheme that the present invention adopts is that a kind of rice field compound herbicide composition is characterized in that said active ingredient is penoxsuam (Penoxsulam); Chemical name be 3-(2, the 2-difluoroethoxy)-N-(5,8-dimethoxy [1; 2,4] triazol [1,5-c] pyrimidine-2-base)-α; α, α-fluoroform phenyl-2-sulfonamide, structural formula is:
And azimsulfuron (Azimsulfuron, other titles: healthy and free from worry, Kang Lifu), chemical name is 1-(4,6-dimethoxypyridin-2-yl)-3-[1-methyl-4-(2-methyl-2H-tetrazolium-5-yl) pyrazoles-5-base sulfonyl] urea, and structural formula is:
The two weight ratio is a penoxsuam: azimsulfuron=1: 15～30: 1, be preferably 1: 7～16: 1, and be more preferably 3: 2; Weight percentage in herbicidal composition is 0.5～90%.
According to different use needs or environment, herbicidal composition according to the invention can be prepared into any formulation that allows on the multi-form agricultural through conventional at present pesticide producing mode, and herbicidal composition most preferred dosage form of the present invention is an oil suspending agent.
Described herbicidal composition, wetting powder makes active ingredient mixture and filler, dispersant, wetting agent, adjuvant through pulverizing.Dispersant can be one or more in polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate; Wetting agent can be one or more in alkyl sulfate, alkylsulfonate, the naphthalene sulfonate; Filler can be one or more in ammonium sulfate, urea, sucrose, glucose, diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, the potter's clay.Required adjuvant be can add as required and stabilizing agent, bleeding agent, spreader-sticker, foam inhibitor, anticaking agent, synergist etc. comprised.
Described herbicidal composition; Water dispersible granules be with auxiliary agents such as active ingredient and filler, wetting agent, dispersant, interleaving agent, disintegrant, stabilizing agent, binding agent after crushed with quantitative water; Add in the kneader simultaneously and combine, process the material of shaping, at last material is sent into Squeezinggranulator; Carry out granulation, obtain the water dispersible granules product through dry, screening.Wherein, dispersant can be one or more in polycarboxylate, lignosulfonates, the alkylnaphthalene sulfonate; Wetting agent can be one or more in alkyl sulfate, alkylsulfonate, the naphthalene sulfonate; Disintegrant can be one or more in ammonium sulfate, urea, sucrose, the glucose; Binding agent can be one or more in diatomite, corn starch, PVA, carboxymethyl (ethyl) cellulose family; In filler such as diatomite, kaolin, white carbon, precipitated calcium carbonate, talcum powder, attapulgite, the potter's clay one or more.
Said herbicidal composition, suspending agent are to be dispersion medium with water, active ingredient mixture, auxiliary agent are made through the wet method ultramicro grinding, can with the even mixed and dispersed of water arbitrary proportion.Auxiliary agent comprises wetting agent, dispersant, emulsifier, thickener, stabilizing agent, antifreezing agent, antifoaming agent, pH regulator agent etc., can add suitable auxiliary agent according to specific requirement.Among dispersant such as polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate (dispersing agent NNO), the TERSPERSE2425 (alkylnaphthalene sulfonate) one or more; Emulsifier can be one or more among Nongru-700 # (alkyl phenol formaldehyde resin polyoxyethylene ether), Span-60# (Span60), Tween-60# polyoxyethylene sorbitan stearate, the agricultural newborn 1601# (triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer); Wetting agent can be one or more among newborn alkylphenol-polyethenoxy base ether formaldehyde condensation products sulphate, alkylphenol-polyethenoxy base ether phosphate, phenethyl phenol polyethenoxy base ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, the TERSPERSE2500; Thickener can be one or more in xanthans, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate; Antifoaming agent can be silicone based antifoaming agent; Antifreezing agent can be one or more in ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride.
Said herbicidal composition; Oil suspending agent be with active ingredient mixture, auxiliary agent through the high dispersive that in non-water-medium, forms that high speed shear is disperseed, the sand mill sand milling makes, stable suspension system, need to add auxiliary agents such as solvent, cosolvent, dispersant, emulsifier, wetting agent, suspension stabilizer, antifreezing agent, thickener.Dispersant can be polycarboxylate, lignosulfonates, alkylnaphthalene sulfonate, TERSPERSE2425 (alkyl naphthalene sulfonic acid salt), in one or more; Emulsifier can be one or more among Nongru-700 # (alkyl phenol formaldehyde resin polyoxyethylene ether), farming breast 2201, Span-60# (Span60), Tween-60# polyoxyethylene sorbitan stearate, agricultural newborn 1601# (triphen ethyl-phenol polyoxyethylene polyoxypropylene block polymer), TERSPERSE4894, the TERSPERSE2500; Wetting agent can be one or more among APES formaldehyde condensation products sulphate, APES phosphate, phenethyl phenol polyethenoxy ether phosphate, alkyl sulfate, alkylsulfonate, naphthalene sulfonate, the TERSPERSE2500; Thickener can be one or more in white carbon, polyvinyl alcohol, bentonite, the aluminium-magnesium silicate; Antifreezing agent can be one or more in ethylene glycol, propane diols, glycerine, urea, inorganic salts such as the sodium chloride; Dispersion medium can be one or more in soybean oil, rapeseed oil, corn oil, methyl oleate, the castor oil.
Herbicidal combinations of the present invention is mainly used in management of weeds in the rice field, like barnyard grass grass, northern water hair flower, difformed galingale herb, toothcup, pondweed, flower Lin, Europe rhizoma alismatis, rhizoma alismatis, firefly Lin, pondweed, Eclipta prostrata etc., but is not limited to above-mentioned weeds.
The present invention possesses following beneficial effect:
Composition pesticide provided by the invention, its synergy shows obvious synergistic effect in certain ratio range, and the herbicidal effect of composition is significantly improved than single agent.Reduced pesticide cost and to the adverse effect of ecotope, it has applied huge social benefit and economic benefit.
This herbicidal composition adopts the use that is mixed of azimsulfuron and penoxsuam; This two components mechanism of action is different; So having the wider grass that kills composes and excellent more synergy control efficiency; Azimsulfuron has remedied penoxsuam to broad leaved weed, shortcoming that the sedge weed preventive effect is low, only needs an a drug just can prevent and kill off rice field broad leaved weed, grassy weed and sedge weed effectively, during use to paddy growth safety; Also can delay or overcome the drug-fast generation of rice weed, help agricultural synthesis and administer.
[embodiment]
Below again foregoing of the present invention is done further explain through the embodiment of embodiment, but should this be interpreted as that the scope of the above-mentioned theme of the present invention only limits to following instance.Do not breaking away under the above-mentioned technological thought situation of the present invention, various replacements or change according to ordinary skill knowledge and customary means are made all should comprise within the scope of the invention.
FORMULATION EXAMPLE 1:
Take by weighing 30% penoxsuam, 40% azimsulfuron, 3% neopelex, 6% lignosulfonates, 3% carboxymethyl cellulose, kaolin and add to 100% weight portion.The frequent regulation of above-mentioned raw materials is equipped with the promptly preceding mixing of method, comminution by gas stream, the back of wetting powder and mixes, and promptly gets said 70% penoxsuam azimsulfuron wetting powder.
FORMULATION EXAMPLE 2:
Take by weighing 25% penoxsuam, 35% azimsulfuron, 5% Negel formaldehyde condensation products, 3% alkylphenol-polyethenoxy ichthyodin, 5% white carbon, diatomite and add to 100% weight portion.The frequent regulation of above-mentioned raw materials is equipped with the promptly preceding mixing of method, comminution by gas stream, the back of wetting powder and mixes, and promptly gets said 60% penoxsuam azimsulfuron wetting powder.
FORMULATION EXAMPLE 3:
Take by weighing 15% penoxsuam, 15% azimsulfuron, 5%TERSPERSE2700,3% alkyl naphthalene sulfonic acid formaldehyde condensation products, 4% nekal, 4% lauryl sodium sulfate, 3% white carbon black, 5% sulphur ammonium, diatomite and add to weight portion.The method of the frequent regulation of above-mentioned raw materials water intaking dispersible granule promptly mix, ultra micro comminution by gas stream, mixing, granulation, get final product said 30% penoxsuam azimsulfuron water dispersible granules.
FORMULATION EXAMPLE 4:
Take by weighing 35% penoxsuam, 15% azimsulfuron, 5% APES phosphate, 3% alkylsulfonate, 2% ethylene glycol, anhydrous sodium sulfate and add to 100% weight portion.The method that the frequent regulation of above-mentioned raw materials is equipped with suspending agent is that high speed shear is disperseed, sand milling is pulverized, is in harmonious proportion, and promptly gets said 50% penoxsuam azimsulfuron suspending agent.
FORMULATION EXAMPLE 5:
Take by weighing 6% penoxsuam, 4% azimsulfuron, 3%TERSPERSE4894,2%TERSPERSE2500,3%TERSPERSE2425,3% white carbon, 5% ethylene glycol, soybean oil adds to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, with making said 10% penoxsuam azimsulfuron oil suspending agent behind the sand mill sand milling.
FORMULATION EXAMPLE 6:
Take by weighing 5% penoxsuam, 10% azimsulfuron, 4% triphen ethyl-phenol polyoxy ethyl ether, 1% alkyl phenol polyoxy ethyl ether, 0.2% xanthans, methyl oleate and add to 100% weight portion.Above-mentioned raw materials is through mixing, and high speed shear is disperseed 30min, makes said 15% penoxsuam azimsulfuron oil suspending agent after pulverizing, be in harmonious proportion with the sand mill sand milling.
Give birth to and survey embodiment:
Killing weeds in rice field field control effectiveness test I:
1, test is handled
(1) 10% penoxsuam azimsulfuron oil suspending agent (1: 15) 15g/ mu
(2) 10% penoxsuam azimsulfuron oil suspending agent (4: 5) 15g/ mus
(3) 10% penoxsuam azimsulfuron oil suspending agent (3: 2) 15g/ mus
(4) 10% penoxsuam azimsulfuron oil suspending agent (4: 1) 15g/ mus
(5) 10% penoxsuam azimsulfuron oil suspending agent (10: 1) 15g/ mus
(6) 10% penoxsuam azimsulfuron oil suspending agent (30: 1) 15g/ mus
(7) 2.5% penoxsuam oil suspending agent 60ml/ mus
(8) 75% azimsulfuron suspending agent 2g/ mus
8 processing are established in test, and 4 repetitions are handled sub-districts for totally 32,20 square metres of every processing sub-district areas, and district's group is arranged at random.(1)～(6) penoxsuam azimsulfuron oil suspending agent (Shandong Binnong Technology Co., Ltd.'s production) is for supplying the reagent agent, and 2.5% penoxsuam oil suspending agent and 75% azimsulfuron suspending agent are the contrast medicament.Convert 30 kilograms in water for every mu, adopt 552 third type sprayers (0.7mm aperture) even spraying.The field main weeds has barnyard grass grass, lady's-grass, nutgrass flatsedge, Monochoria vaginalis, Procumbent Falsepimpernel, needle spikesedge herb etc.
2, pilot project and method
(1) safety: after the dispenser, the situation of growing of investigation paddy rice is estimated and is supplied the safety of reagent agent to paddy rice.
(2) herbicidal effect: every sub-district is got 4 points at random, investigates 1/4 square metre at every, and 30 days investigation weed control efficacies write down weeds kind and strain number respectively after the dispenser, calculate weeds strain preventive effect.
(3) result of the test
Safety: the dispenser " Invest, Then Investigate ", chemicals treatment district rice plant height, Ye Se and blank district basically identical show to supply reagent agent (1)～(6) penoxsuam azimsulfuron all to rice safety.
Herbicidal effect: see Table I.
30 days various weed control efficacies behind the Table I medicine
Annotate: (1) 10% penoxsuam azimsulfuron oil suspending agent (1: 15)
(2) 10% penoxsuam azimsulfuron oil suspending agents (4: 5)
(3) 10% penoxsuam azimsulfuron oil suspending agents (3: 2)
(4) 10% penoxsuam azimsulfuron oil suspending agents (4: 1)
(5) 10% penoxsuam azimsulfuron oil suspending agents (10: 1)
(6) 10% penoxsuam azimsulfuron oil suspending agents (30: 1)
(7) 2.5% penoxsuam oil suspending agents
(8) 75% azimsulfuron suspending agents
Can know by Table I; The penoxsuam azimsulfuron oil suspending agent of different proportionings to common weed strain preventive effect between 74.06～98.05%; All be superior to contrasting medicament 2.5% penoxsuam oil suspending agent and 75% azimsulfuron suspending agent (weeds strain preventive effect is respectively 57.74% and 70.89%); Wherein penoxsuam and azimsulfuron weight ratio are that 4: 5 and 4: 1 are all remarkable to rice field common weed preventive effect; Weeds strain preventive effect is all more than 90%, and penoxsuam: azimsulfuron=3: 2 o'clock preventive effects are especially up to more than 98%.Penoxsuam and azimsulfuron weight ratio are in 1: 15～30: 1 scopes; The common grass family in rice field, broad-leaved and sedge weed all there is preventive effect; Lasting period can control the crop smothering of rice field whole growth phase basically, and this herbicidal composition was to rice safety greater than one month.
Killing weeds in rice field field control effectiveness test II:
1, test is handled
(1) 5% penoxsuam azimsulfuron oil suspending agent (3: 2) 30g/ mu
(2) 10% penoxsuam azimsulfuron oil suspending agent (3: 2) 15g/ mus
(3) 50% penoxsuam azimsulfuron oil suspending agent (3: 2) 3g/ mus
3 processing are established in test, and 4 repetitions are handled sub-districts for totally 12,20 square metres of every processing sub-district areas, and district's group is arranged at random.(1)～(3) penoxsuam azimsulfuron oil suspending agent (Shandong Binnong Technology Co., Ltd.'s production) is converted 30 kilograms in water for every mu for supplying the reagent agent, adopts 552 third type sprayers (0.7mm aperture) even spraying.The field main weeds has barnyard grass grass, lady's-grass, nutgrass flatsedge, Monochoria vaginalis, Procumbent Falsepimpernel, needle spikesedge herb etc.
2, pilot project and method
Herbicidal effect: every sub-district is got 4 points at random, investigates 1/4 square metre at every, and 30 days investigation weed control efficacies write down weeds kind and strain number respectively after the dispenser, calculate weeds strain preventive effect.
Result of the test: herbicidal effect is seen Table II.
30 days various weed control efficacies behind the Table II medicine
Annotate: (1) 5% penoxsuam azimsulfuron oil suspending agent (3: 2)
(2) 10% penoxsuam azimsulfuron oil suspending agents (3: 2)
(3) 50% penoxsuam azimsulfuron oil suspending agents (3: 2)
Can know by Table II; When the weight ratio of penoxsuam and azimsulfuron is 3: 2; The penoxsuam azimsulfuron oil suspending agent of different content to common weed strain preventive effect all more than 90%; Show that the herbicidal composition of different activities component content all had significant preventive effect to weeds when penoxsuam and azimsulfuron weight ratio were optimal proportion.
Living test is tested the result and is shown; After penoxsuam and azimsulfuron are composite; Two active component ratios are between 1: 15～30: 1, and the weight percentage in herbicidal composition is in 0.5～90% scope, compare with single agent separately; Preventive effect to weeds is significantly improved, and has reached the purpose of preventing and kill off broad leaved weed, sedge weed and grassy weed simultaneously.
Claims (5)
1. a Herbicidal compositions for paddy fields is characterized in that this compound herbicide composition contains penoxsuam and two kinds of active components of azimsulfuron and usual auxiliaries, and wherein the weight ratio of penoxsuam and azimsulfuron is 1: 15～30: 1.
2. herbicidal composition according to claim 1 is characterized in that the active component weight ratio is that the weight ratio of penoxsuam and azimsulfuron is 1: 7～16: 1.
3. according to claim 1 and 2 described herbicidal compositions, it is characterized in that the mass percent of active component in herbicidal composition is 0.5～90%.
4. according to the said herbicidal composition of claim 1, can be mixed with agricultural when it is characterized in that said composition practical application and go up any formulation that allows.
5. according to the described herbicidal composition of claim 1～4, it is characterized in that being used for preventing and kill off rice field broad leaved weed, sedge weed and grassy weed.
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| CN2011101330363A CN102792956A (en) | 2011-05-23 | 2011-05-23 | Herbicide composition including penoxsulam and azimsulfuron |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105325444A (en) * | 2015-10-29 | 2016-02-17 | 北京燕化永乐生物科技股份有限公司 | Pesticide composition |
| CN105340934A (en) * | 2015-11-03 | 2016-02-24 | 北京燕化永乐生物科技股份有限公司 | Compound herbicide |
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| JP2005239635A (en) * | 2004-02-26 | 2005-09-08 | Nissan Chem Ind Ltd | Weeding method in paddy rice cultivation by direct sowing on dry rice field |
| CN101310599A (en) * | 2008-05-26 | 2008-11-26 | 北京燕化永乐农药有限公司 | Rice direct seeding field mixed herbicide |
| CN101530105A (en) * | 2009-04-21 | 2009-09-16 | 北京颖泰嘉和科技股份有限公司 | Herbicide composition containing sulfonylurea, pyridine and penoxsulam and use thereof |
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2011
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Patent Citations (3)
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| JP2005239635A (en) * | 2004-02-26 | 2005-09-08 | Nissan Chem Ind Ltd | Weeding method in paddy rice cultivation by direct sowing on dry rice field |
| CN101310599A (en) * | 2008-05-26 | 2008-11-26 | 北京燕化永乐农药有限公司 | Rice direct seeding field mixed herbicide |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105325444A (en) * | 2015-10-29 | 2016-02-17 | 北京燕化永乐生物科技股份有限公司 | Pesticide composition |
| CN105340934A (en) * | 2015-11-03 | 2016-02-24 | 北京燕化永乐生物科技股份有限公司 | Compound herbicide |
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Application publication date: 20121128 |