CN102132702B - Paddy field weeding composition and application thereof - Google Patents
Paddy field weeding composition and application thereof Download PDFInfo
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- CN102132702B CN102132702B CN 201110072349 CN201110072349A CN102132702B CN 102132702 B CN102132702 B CN 102132702B CN 201110072349 CN201110072349 CN 201110072349 CN 201110072349 A CN201110072349 A CN 201110072349A CN 102132702 B CN102132702 B CN 102132702B
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- fluroxypyr
- penoxsuam
- effective ingredient
- paddy field
- rice field
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Abstract
The invention discloses a paddy field weeding composition and application thereof. The paddy field weeding composition comprises penoxsulam and fluroxypr in a weight ratio of (10:1) to (1:20), wherein the total weight of the penoxsulam and the fluroxypr is 1 to 80 percent of the weight of the composition. The composition is suitable for preventing and weeding ephemeral weeds in a paddy field. Compared with a single agent, the composition has much more desirable prevention and treatment effect of the ephemeral weeds in the paddy field, and the using dose of pesticides is reduced, the cost of pesticide use is reduced, the service life of medicaments is prolonged, and the adverse effect of the pesticides on ecological environment is reduced.
Description
Technical field
The Herbicidal combinations that the present invention relates to is take penoxsuam, fluroxypyr as active ingredient, is used for preventing and kill off paddy field weed.
Background technology
The chemical method weeding is one of Main Means of the upper control of agricultural weeds.In recent years, because some weed killer herbicide kind large tracts of land are used separately, caused a lot of weeds to develop immunity to drugs, control efficiency is difficult to guarantee.At paddy field, the Weed Resistance problem is particularly outstanding, and weeds generation grass is complicated mutually, not only annual and perennial weed is mixed gives birth to, and weeds emerge uneven, seed, low age, the staggered generation of weeds at advanced age when the weed killer herbicide kind is used separately, all can show in a certain respect defective and limitation.
Fluroxypyr, English common name fluroxypyr is the inner sucting conduction type herbicide after seedling, and is very fast by plant absorbing after the dispenser, makes sensitive plant the reaction of typical hormone herbicide occur, plant is lopsided, distortion, and is finally withered.Be applicable to prevent and kill off broad leaved weed; Such as clearvers, volume stem knotweed, kitchen garden, black nightshade, field bindweed, knotweed, amaranth etc., invalid to grassy weed, to crop safety.Because fluroxypyr can only be prevented and kill off broad leaved weed, use cost is higher, and actual preventive effect is relatively relatively poor, is unfavorable for that spread uses.
Penoxsuam, English common name penoxsulam, the sulfanilamide (SN) carbamide herbicides is translocated herbicide, through cauline leaf, young shoot and Root Absorption, conduct to meristematic tissue by xylem and phloem, suppress plant strain growth, make the growing point chlorosis, 7 ~ 14d terminal bud reddens after processing, necrosis, 2 ~ 4 all plant are dead; This agent is strong inhibitor of acetolactate synthetase, and medicament presents slower, needs the certain hour weeds just dead gradually.Can be used for preventing and kill off barnyard grass in paddy field and annual sedge weed, and effective to multiple broad leaved weed.
Being mixed and using of penoxsuam and fluroxypyr there is no report at present.The inventor conducts in-depth research being mixed of penoxsuam and fluroxypyr, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that penoxsuam and fluroxypyr are mixed, in certain mixed ratio scope, weeds are shown obvious synergistic effect, after further study, finished the present invention.
Summary of the invention
The object of the invention is to solve in the prior art develop immunity to drugs problem and actual control efficiency of farmland weed relatively poorly, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the Herbicidal combinations of the weeds comprehensive regulation.
Another object of the present invention is be used to preventing and kill off paddy field weed.
Technical scheme: for achieving the above object, the invention provides a kind of Herbicidal combinations take penoxsuam, fluroxypyr as effective ingredient, penoxsuam and fluroxypyr ratio of weight and number are 10:1～1:20.
In the described Herbicidal composition for rice field, penoxsuam and the percentage by weight of fluroxypyr weight summation in composition are 1～80%, and surplus is the upper acceptable insecticides adjuvant of agricultural.
Described Herbicidal composition for rice field can according to well known to a person skilled in the art method, be mixed with the application forms of the suitable agricultural uses such as oil-suspending agent, microemulsion, aqueous emulsion, suspending agent, wetting powder or water dispersible granules.
Described Herbicidal composition for rice field also contains acceptable insecticides adjuvant on the required agricultural of preparation pesticidal preparations, be selected from one or more in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, bleeding agent, thickener, defoamer, antifreezing agent, disintegrant, binding agent, filler, carrier, medium, the surfactant, be known substance, various auxiliary agents commonly used in the pesticidal preparations, can change to some extent according to different situations, be not particularly limited.
The production technology of the various application forms of described Herbicidal composition for rice field all belongs to existing known technology, does not repeat them here.
Herbicidal composition for rice field provided by the invention is applied to prevent and kill off paddy field weed.
Herbicidal composition for rice field provided by the invention adopts the method for spraying to use usually, also can adopt as required upper other operation techniques used of agricultural.
Herbicidal composition for rice field provided by the invention has following beneficial effect.
1, the present invention shows obvious synergistic effect in certain ratio range, the control efficiency of composition is significantly improved than single dose, has reduced the using dosage of agricultural chemicals, has reduced the medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, the combination of two kinds of effective ingredients of the present invention has enlarged herbicidal spectrum, and a drug can solve various weeds problems, has remedied defective and limitation when single dose is used.
3, two kinds of effective ingredient mechanism of action of the present invention are different, can overcome the shortcoming that long-term single use easily produces resistance, prolong the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, drug effect performance of the present invention is rapid, and the lasting period is long, and use cost is low, and is easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Embodiment
The present invention describes by following specific embodiment, but the invention is not restricted to following specific embodiment.In these embodiments, unless otherwise indicated, all percentages all are weight percentage.
Biologicall test embodiment one:Be mixed to the synergy of weeds for further understanding penoxsuam and fluroxypyr, the inventor is mixed to penoxsuam and fluroxypyr and has carried out formulation screening test.
Test material: chickweed [
Stellaria media(L.) Cyrillus] (field is collected seed and is preserved).
Barnyard grass [
Echinochloa crusgalli(L.) Beaw Setaria] (field is collected seed and is protected
Deposit).
Test apparatus: controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method: the former medicine of 98% penoxsuam that takes by weighing first certain mass, the former medicine of 95% fluroxypyr adds the Tween 80 aqueous solution dilution that acetone fully dissolves rear usefulness 0.1%, is mixed with respectively the single dose mother liquor, according to the purpose that is mixed serial proportioning is set, each proportioning arranges 5～7 concentration gradients.Select representative susceptible weeds seed according to single dose herbicide spectrum, be cultured to 1 leaf, 1 heart for subsequent use.After the weeds cauline leaf of selecting numbering processed, be placed in the illumination box incubated at room temperature 5 days, calculate control efficiency (fresh weight), then with method of least squares calculate suppress in dense EC50(95% confidence limit), calculate co-toxicity coefficient (CTC) with the abundant method of Sun Yun again.
Co-toxicity coefficient (CTC) 〉=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80＜co-toxicity coefficient (CTC)＜120 shows as summation action.
Measurement result shows, between penoxsuam and the fluroxypyr ratio of weight and number 10:1～1:20, co-toxicity coefficient has obvious synergistic effect more than 140.
Table 1, different proportioning penoxsuam and fluroxypyr are measured the synergy of barnyard grass.
Table 2, different proportioning penoxsuam and fluroxypyr are measured the synergy of chickweed.
Example of formulations one:6% penoxsuam fluroxypyr wetting powder, penoxsuam 1.5%, fluroxypyr 4.5%, wetting agent pull open powder 5%, dispersant NNO 12%, talcum powder 4%, kaolin complements to 100%.Above-mentioned prescription entered in the blender after the coarse crushing in proportion mix, behind air-flow crushing, namely make again 6% penoxsuam fluroxypyr wetting powder.
The present embodiment is used for preventing and kill off direct seading rice field annual weed, and 6% penoxsuam fluroxypyr wetting powder mu is watered the cauline leaf spraying with preparation 20 grams, and 10 days preventive effects are 96.5% behind the medicine; Contrast single dose 2.5% penoxsuam oil-suspending agent mu is watered the cauline leaf spraying with preparation 80 grams, and 10 days preventive effects are 89.8% behind the medicine; Contrast single dose 20% fluroxypyr missible oil mu is watered the cauline leaf spraying with preparation 50 grams, behind the medicine 10 days 63.1%.The composite rear synergy of penoxsuam and fluroxypyr is obvious, and 6% penoxsuam fluroxypyr wetting powder is prevented and kill off direct seading rice field annual weed drug effect and obviously is better than contrasting single dose 2.5% penoxsuam oil-suspending agent and 20% fluroxypyr missible oil.Because pharmacy control efficacy improves, the compound drug effective ingredient consumption reduces, and has reduced drug cost, delays the generation of herbicide resistance, has reduced environmental pollution.
Example of formulations two:6.9% penoxsuam fluroxypyr suspending agent, penoxsuam 0.9%, fluroxypyr 6%, emulsifier 1601# 15%, wetting agent LS 5%, dispersant SOPA-270 4%, bentonite 3%, xanthans 0.1%, silicone defoaming agent 0.4%, glycerine 5%
Deionized water complements to 100%.
Above-mentioned prescription is pulverized in proportion in advance, added in the sand mill and grind, allotment makes 6.9% penoxsuam fluroxypyr suspending agent after high shear mixing.
The present embodiment is used for preventing and kill off direct seading rice field annual weed, and 6.9% penoxsuam fluroxypyr suspending agent mu is watered the cauline leaf spraying with preparation 20 grams, and 10 days preventive effects are 97.3% behind the medicine; Contrast single dose 2.5% penoxsuam oil-suspending agent mu is watered the cauline leaf spraying with preparation 80 grams, and 10 days preventive effects are 89.5% behind the medicine; Contrast single dose 20% fluroxypyr missible oil mu is watered the cauline leaf spraying with preparation 50 grams, behind the medicine 10 days 66.1%.The composite rear synergy of penoxsuam and fluroxypyr is obvious, and 6.9% penoxsuam fluroxypyr suspending agent is prevented and kill off direct seading rice field annual weed drug effect and obviously is better than contrasting single dose 2.5% penoxsuam oil-suspending agent and 20% fluroxypyr missible oil.Because pharmacy control efficacy improves, the compound drug effective ingredient consumption reduces, and has enlarged the herbicide spectrum, has reduced drug cost, delays the generation of herbicide resistance, has reduced environmental pollution.
Example of formulations three:The different monooctyl ester water dispersible granules of 15% penoxsuam fluroxypyr, penoxsuam 2.5%, the different monooctyl ester 12.5% of fluroxypyr, lauryl sodium sulfate 6%, polycarboxylate 4%, sodium chloride 2%, polyethylene glycol 3%, kaolin complements to 100%.Dry pulverization process, granulation, drying, screening make the different monooctyl ester water-dispersible granules of 15% penoxsuam fluroxypyr in proportion with above-mentioned prescription.
The present embodiment is used for preventing and kill off direct seading rice field annual weed, and the different monooctyl ester water-dispersible granules of 15% penoxsuam fluroxypyr mu is watered the cauline leaf spraying with preparation 7 grams, and 10 days preventive effects are 94.8% behind the medicine; Contrast single dose 2.5% penoxsuam oil-suspending agent mu is watered the cauline leaf spraying with preparation 80 grams, and 10 days preventive effects are 88.6% behind the medicine; Contrast single dose 20% fluroxypyr missible oil mu is watered the cauline leaf spraying with preparation 50 grams, behind the medicine 10 days 65.2%.The composite rear synergy of the different monooctyl ester of penoxsuam and fluroxypyr is obvious, and the different monooctyl ester water-dispersible granules of 15% penoxsuam fluroxypyr is prevented and kill off direct seading rice field annual weed drug effect and obviously is better than contrasting single dose 2.5% penoxsuam oil-suspending agent and 20% fluroxypyr missible oil.Because pharmacy control efficacy improves, the compound drug effective ingredient consumption reduces, and has enlarged the herbicide spectrum, has reduced drug cost, delays the generation of herbicide resistance, has reduced environmental pollution.
Embodiment four:The different monooctyl ester aqueous emulsion of 10.5% penoxsuam fluroxypyr, penoxsuam 1.5%, the different monooctyl ester 9% of fluroxypyr, 1-METHYLPYRROLIDONE 10%, neopelex 8%, polyvinyl alcohol 3%, emulsifier 500# 6%, silicone defoaming agent 0.5%, deionized water complements to 100%.Above-mentioned prescription Central Plains medicine, solvent, emulsifiers dissolve are become even oil phase; Water-soluble component and deionized water mixing in the above-mentioned prescription is made water; Under high-speed stirred, oil phase and water mixing are made the different monooctyl ester aqueous emulsion of 10.5% penoxsuam fluroxypyr.
The present embodiment is used for preventing and kill off direct seading rice field annual weed, and the different monooctyl ester aqueous emulsion of 10.5% penoxsuam fluroxypyr mu is watered the cauline leaf spraying with preparation 12 grams, and 10 days preventive effects are 93.6% behind the medicine; Contrast single dose 2.5% penoxsuam oil-suspending agent mu is watered the cauline leaf spraying with preparation 80 grams, and 10 days preventive effects are 88.5% behind the medicine; 20% fluroxypyr missible oil mu is watered the cauline leaf spraying with preparation 50 gram, behind the medicine 10 days 64.6%.The composite rear synergy of penoxsuam and fluroxypyr is obvious, and the different monooctyl ester aqueous emulsion of 10.5% penoxsuam fluroxypyr is prevented and kill off direct seading rice field annual weed drug effect and obviously is better than contrasting single dose 2.5% penoxsuam oil-suspending agent and 20% fluroxypyr missible oil.Because pharmacy control efficacy improves, the compound drug effective ingredient consumption reduces, and has enlarged the herbicide spectrum, has reduced drug cost, delays the generation of herbicide resistance, has reduced environmental pollution.
Example of formulations five:12.5% penoxsuam fluroxypyr oil-suspending agent, penoxsuam 2.5%, fluroxypyr 10%, vegetable oil emulsifier 30%, organobentonite 1%, methylated vegetable oil complements to 100%.Above-mentioned prescription Central Plains medicine, solvent, emulsifiers dissolve are become even oil phase; Under high-speed stirred, mix making 12.5% penoxsuam fluroxypyr oil-suspending agent.
The present embodiment is used for preventing and kill off direct seading rice field annual weed, and 12.5% penoxsuam fluroxypyr oil-suspending agent mu is watered the cauline leaf spraying with preparation 10 grams, and 10 days preventive effects are 97.3% behind the medicine; Contrast single dose 2.5% penoxsuam oil-suspending agent mu is watered the cauline leaf spraying with 80 grams, and 10 days preventive effects are 89.2% behind the medicine; Contrast single dose 20% fluroxypyr missible oil mu is watered the cauline leaf spraying with preparation 50 grams, behind the medicine 10 days 62.8%.The composite rear synergy of penoxsuam and fluroxypyr is obvious, and 12.5% penoxsuam fluroxypyr oil-suspending agent is prevented and kill off direct seading rice field annual weed drug effect and obviously is better than contrasting single dose 2.5% penoxsuam oil-suspending agent and 20% fluroxypyr missible oil.Because pharmacy control efficacy improves, the compound drug effective ingredient consumption reduces, and has enlarged the herbicide spectrum, has reduced drug cost, delays the generation of herbicide resistance, has reduced environmental pollution.
Claims (3)
1. Herbicidal composition for rice field, it is characterized in that comprising two kinds of effective ingredient: effective ingredient a and effective ingredient b, wherein effective ingredient a is penoxsuam, effective ingredient b is fluroxypyr, the ratio of weight and number of effective ingredient a and effective ingredient b is 10:1～1:20, and the percentage by weight of two kinds of effective ingredient weight summations in Herbicidal composition for rice field is 1～80%; Surplus is the upper acceptable insecticides adjuvant of agricultural.
2. a kind of Herbicidal composition for rice field according to claim 1 is characterized in that: its formulation is a kind of in oil-suspending agent, microemulsion, aqueous emulsion, wetting powder or the water dispersible granules.
3. a kind of Herbicidal composition for rice field according to claim 1 and 2 is characterized in that be used to preventing and kill off the paddy field annual weed.
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| CN 201110072349 CN102132702B (en) | 2011-03-24 | 2011-03-24 | Paddy field weeding composition and application thereof |
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| CN102132702B true CN102132702B (en) | 2013-01-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9288990B2 (en) | 2013-03-15 | 2016-03-22 | Dow Agrosciences Llc | Synergistic weed control from applications of penoxsulam and pethoxamid |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102239841B (en) * | 2011-05-17 | 2013-10-02 | 安徽丰乐农化有限责任公司 | Weeding aqueous emulsion |
| CN102326567B (en) * | 2011-10-21 | 2014-04-16 | 联保作物科技有限公司 | Wheat field weeding composition and preparation thereof |
| CN103098804A (en) * | 2013-02-20 | 2013-05-15 | 北京燕化永乐农药有限公司 | Single drive type roller press |
| MX2015011043A (en) | 2013-02-25 | 2015-10-22 | Dow Agrosciences Llc | Methods of weed control in pineapple. |
| CN103636620A (en) * | 2013-11-28 | 2014-03-19 | 北京燕化永乐生物科技股份有限公司 | Weeding composition |
| CN105557712A (en) * | 2015-12-24 | 2016-05-11 | 安徽美兰农业发展股份有限公司 | Penoxsulam and fluroxypr-mepthyl compound dispersible oil suspending agent and preparation method thereof |
| CN107027779A (en) * | 2017-04-12 | 2017-08-11 | 浙江天丰生物科学有限公司 | Herbicidal combinations containing penoxsuam, the different monooctyl ester of fluroxypyr and pyribenzoxim |
| CN107156147A (en) * | 2017-04-12 | 2017-09-15 | 浙江天丰生物科学有限公司 | Herbicidal composition for paddy fields containing penoxsuam, the different monooctyl ester, metamifops of fluroxypyr |
| CN107087631A (en) * | 2017-07-06 | 2017-08-25 | 佛山市普尔玛农化有限公司 | A kind of Herbicidal combinations for including penoxsuam, halosulfuronmethyl and fluroxypyr |
| CN109699659A (en) * | 2019-01-16 | 2019-05-03 | 杨卫东 | A kind of herbicide and preparation method thereof of expansible degrass spectrum |
| WO2021036251A1 (en) * | 2019-08-27 | 2021-03-04 | 青岛清原化合物有限公司 | Herbicidal composition containing r-type pyridyloxy carboxylic acid derivatives and application thereof |
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| CN1729177A (en) * | 2002-12-23 | 2006-02-01 | 伊萨罗里斯卡公司 | New uracils having a herbicidal activity |
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| EP2123158A1 (en) * | 2006-12-21 | 2009-11-25 | Kumiai Chemical Industry CO., LTD. | Herbicide composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9288990B2 (en) | 2013-03-15 | 2016-03-22 | Dow Agrosciences Llc | Synergistic weed control from applications of penoxsulam and pethoxamid |
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Application publication date: 20110727 Assignee: Beijing Yanhua Yongle Biotechnology Co., Ltd. Assignor: Guangdong Zhongxun Agricultural Technology Co., Ltd. Contract record no.: 2014990000711 Denomination of invention: Paddy field weeding composition and application thereof Granted publication date: 20130102 License type: Common License Record date: 20140825 |
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Application publication date: 20110727 Assignee: JIANGXI ZHONGXUN AGROCHEMICAL CO., LTD. Assignor: Guangdong Zhongxun Agricultural Technology Co., Ltd. Contract record no.: X2019440020026 Denomination of invention: Paddy field weeding composition and application thereof Granted publication date: 20130102 License type: Common License Record date: 20191203 |
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Denomination of invention: Paddy field weeding composition and application thereof Effective date of registration: 20200428 Granted publication date: 20130102 Pledgee: China Co truction Bank Corp Huizhou branch Pledgor: GUANGDONG ZHONGXUN AGRICULTURAL TECHNOLOGY Co.,Ltd. Registration number: Y2020980001916 |