CN103392712B - The Herbicidal combinations of Han You oxaziclomefone and penoxsuam - Google Patents
The Herbicidal combinations of Han You oxaziclomefone and penoxsuam Download PDFInfo
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- CN103392712B CN103392712B CN201310267256.4A CN201310267256A CN103392712B CN 103392712 B CN103392712 B CN 103392712B CN 201310267256 A CN201310267256 A CN 201310267256A CN 103392712 B CN103392712 B CN 103392712B
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- penoxsuam
- oxaziclomefone
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Abstract
The invention discloses the Herbicidal combinations of a kind of Han You oxaziclomefone and penoxsuam, its active ingredient is oxaziclomefone and penoxsuam ， oxaziclomefone and the ratio of weight and number of penoxsuam in Herbicidal combinations is 1<b>:</bGreatT.G reaT.GT20 ~ 20<b>:</bGreatT. GreaT.GT1.Herbicidal combinations of the present invention needs can be prepared into suspending agent, oil-suspending agent, wetting powder and water dispersible granules, for preventing and kill off paddy field annual weed according to practical application.Said composition is prevented and kill off paddy field weed successful and is better than each single dose, decreases dosage simultaneously, delays the generation of herbicide resistance, alleviates pollution to environment.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically Yi oxaziclomefone and the penoxsuam Herbicidal combinations that is active ingredient, is applied to and prevents and kill off paddy field annual weed.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, because some weed killer herbicide kind large area are used alone, a lot of weeds have been caused to create pesticide resistance.Meanwhile, because when weeds occur, grass is mutually complicated, the weeds such as grassy weed, broad leaved weed and sedge weed are mixed raw, and single variety weed killer herbicide uses effectively can not solve farmland weed, all can show defect in a certain respect and limitation.And variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote preventive effect, delay the plurality of advantages such as weeds develop immunity to drugs, save time, saving of labor.
Oxaziclomefone, has another name called barnyard grass peace, english common name: oxaziclomefone, structural formula:
Oxaziclomefone belongs to organic heterocyclic class, is inner sucting conduction type herbicide for paddy field, primarily of root and the cauline leaf basal sink of weeds.Weeds contact medicament after cauline leaf part chlorosis, stop growing, until withered, the multiple weeds such as barnyard grass, waterwort, moleplant seed, difformed galingale herb can be prevented and kill off.
Penoxsuam, english common name: penoxsulam, structural formula:
Penoxsuam belongs to triazolopyrimidine sulfonamides herbicide, through cauline leaf, young shoot and Root Absorption, conducts to meristematic tissue by xylem and phloem, suppress plant strain growth, make growing point chlorosis, after process, 7-14d terminal bud reddens, necrosis, 2-4 week plant is dead; It is strong inhibitor of acetolactate synthetase, and medicament presents comparatively slow, needs certain hour weeds just dead gradually.Be applicable to the live field of paddy rice, barnyard grass prevented and kill off in rice seedling bed, moleplant seed and annual sedge weed, and effective to numerous broad leaved weed.Lasting period reaches 30-60 days, a drug energy basic controlling full season Weed infestation.
By the screening of different pesticide species compounded formula, select outstanding formula and effectively can improve actual control efficiency to disease, worm, crop smothering, reducing dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means of agricultural synthesis improvement.The compounded formula screening of the present inventor's paroxazine humulone and penoxsuam conducts in-depth research Fa Xian oxaziclomefone and penoxsuam carries out composite, there is synergistic effect in certain compound proportion scope to paddy field annual weed, after further study, complete the present invention.
Summary of the invention
The object of the invention is to solve when prior art Pesticides single dose is used alone the problem that weeds in paddy field easily develops immunity to drugs and actual control efficiency is poor, there is provided a kind of efficient, low toxicity, lasting period be long, be conducive to the agricultural chemicals Herbicidal combinations of the weeds in paddy field comprehensive regulation.
Technical scheme of the present invention is: for achieving the above object, the invention provides a kind of Herbicidal combinations, active ingredient Wei oxaziclomefone and penoxsuam, all the other are for allowing use and acceptable auxiliary element ， oxaziclomefone and the ratio of weight and number of penoxsuam in Herbicidal combinations to be 1 in agricultural chemicals
:20 ~ 20
:1.
The auxiliary element used in Herbicidal combinations provided by the invention comprises wetting agent, stabilizing agent, dispersant, disintegrant, thickener, pH adjusting agent, defoamer, antifreezing agent, filler etc., be all auxiliary agent conventional in Pesticide formulation, concrete composition and consumption are determined by test according to recipe requirements.
Described Herbicidal combinations according to well known to a person skilled in the art method, can be processed into the application forms that the applicable agricultural productions such as suspending agent, oil-suspending agent, wetting powder and water-dispersible granules use.
Herbicidal combinations provided by the invention, usually adopts and is watered spray method use, also can adopt other operation techniques agriculturally applied as required.
Herbicidal combinations provided by the invention, to the shooting stage after rice seedlings, should use before the paddy field annual weed 5 leaf phase in use.
Beneficial effect of the present invention: the present composition is prevented and kill off paddy field weed successful and is better than each single dose, decreases dosage simultaneously, delays the generation of herbicide resistance, alleviates pollution to environment.
Technology origin of the present invention: for further Xie oxaziclomefone and penoxsuam mixture are to the synergy of weeds, the present inventor's paroxazine humulone and penoxsuam is composite has carried out formulation screening test:
Test material: Monochoria vaginalis [
monochoriavaginalis] (field collection Seed storage); Barnyard grass [
echinochloacrusgalli(L.) BeawSetaria] (field collection Seed storage).
Test apparatus: controlled illumination box; The accurate laboratory spray tower of POTTER; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method: the purity first taking certain mass is the former medicine of 96.5% oxaziclomefone, purity is the former medicine of 98% penoxsuam, add the Tween 80 aqueous solution dilution that acetone fully dissolves rear use 0.1%, be mixed with single dose mother liquor respectively, arrange serial proportioning according to mixture object, each proportioning arranges 5 ~ 7 concentration gradients.Select representative susceptible weeds seed according to single dose herbicide spectrum, be cultured to 2 leaf 1 hearts for subsequent use.By select numbering the process of weeds cauline leaf after, to be placed in illumination box incubated at room temperature 20 days, to calculate control efficiency (fresh weight), then with method of least squares calculate suppress in concentration EC
50, then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard agent EC
50/ reagent agent EC
50) × 100.
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the toxicity index × mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] × 100.
Oxaziclomefone that measurement result shows (see table 1 and table 2) and penoxsuam are in the scope of mixed ratio 1:20 ~ 20:1, co-toxicity coefficient (CTC) is all more than 120, and Biao Ming oxaziclomefone and penoxsuam mixture all have synergistic effect to Monochoria vaginalis and barnyard grass.
Table 1, different Pei measure Bi oxaziclomefone and penoxsuam the synergy of Monochoria vaginalis.
Table 2, different Pei measure Bi oxaziclomefone and penoxsuam the synergy of barnyard grass.
Embodiment
The present invention is described by following specific embodiment, but the invention is not restricted to following specific embodiment.In these embodiments, unless otherwise indicated, all percentage is all weight percentage.
preparation method's embodiment one:
Oxaziclomefone 0.5%,
Penoxsuam 2%,
Agriculture breast 1601#12%,
Wetting agent LS5%,
Dispersant SOPA-2704%,
Bentonite 2%,
Xanthans 0.1%,
Organosilicon 0.4%,
Glycerine 5%,
Deionized water to 100%.
Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 2.5% oxaziclomefone penoxsuam suspending agent of allotment after high speed shear mixing.
preparation method's embodiment two:
Oxaziclomefone 2%,
Penoxsuam 1%,
Calcium dodecyl benzene sulfonate 5%,
Castor oil polyoxyethylene ether 10%,
Sodium lignin sulfonate 4%,
Methyl oleate to 100%,
Above-mentioned material is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 3% oxaziclomefone penoxsuam oil-suspending agent of allotment after high speed shear mixing.
preparation method's embodiment three:
Oxaziclomefone 2%,
Penoxsuam 3%,
Pull open powder 6%,
NNO10%，
Talcum powder 4%,
Kaolin to 100%.
Mix entering in blender after above-mentioned formula in proportion coarse crushing, more namely obtain 5% oxaziclomefone penoxsuam wetting powder after air-flow crushing.
preparation method executes example four:
Oxaziclomefone 4%,
Penoxsuam 6%,
Lauryl sodium sulfate 5%,
Polycarboxylate 4%,
Sodium chloride 2%,
Polyethylene glycol 3%,
Kaolin to 100%.
By above-mentioned formula dry pulverization process, granulation, drying, the obtained 10% oxaziclomefone penoxsuam water-dispersible granules of screening preparation in proportion.
field control effectiveness test embodiment one:3% oxaziclomefone penoxsuam oil-suspending agent (2% oxaziclomefone: 1% penoxsuam) prevents and kill off the rice direct seeding field annual weed test of pesticide effectiveness
Test selects the more rice direct seeding field of moleplant seed, barnyard grass and broad leaved weed to carry out.4 process are established in test altogether, often 3 repetitions are established in process, process 1 is 3% oxaziclomefone penoxsuam oil-suspending agent, process 2 is single dose 1% oxaziclomefone suspending agent, process 3 dispersibles oil-suspending agent for single dose 25 grams per liter penoxsuam, process 4 is contrast (not dispenser not weeding), and add up each process number of weeds amount after 20 days and calculate preventive effect, result of the test is in table 3.
Table 3, prevent and kill off rice direct seeding field annual weed field control effectiveness test result (after medicine 20 days).
Remarks: strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain number * 100%.
As can be seen from Table 3, after medicine, the preventive effect of 20 days 3% oxaziclomefone penoxsuam oil-suspending agents to live field weed moleplant seed, barnyard grass and broad leaved weed is all used alone apparently higher than each single dose, does not find that said composition produces poisoning to paddy rice in pilot survey process simultaneously.
Claims (3)
1. containing the Herbicidal combinations having oxaziclomefone and penoxsuam, it is characterized in that: active ingredient is oxaziclomefone and penoxsuam, oxaziclomefone and the penoxsuam ratio of weight and number in Herbicidal combinations is 1
:20 ~ 20
:1.
2. the Herbicidal combinations of Han You oxaziclomefone according to claim 1 and penoxsuam, is characterized in that: its formulation is the one in suspending agent, oil-suspending agent, wetting powder and water dispersible granules.
3. the Herbicidal combinations of Han You oxaziclomefone according to claim 1 and penoxsuam is preventing and kill off the application in paddy field annual weed.
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103734154B (en) * | 2014-01-26 | 2016-04-20 | 上海艳紫化工科技有限公司 | Oxaziclomefone and the composite oil-suspending agent of penoxsuam |
| CN105028449A (en) * | 2015-08-11 | 2015-11-11 | 广东中迅农科股份有限公司 | Pesticide composition of herbicide of penoxsulam and oxaziclomefone as well as sulfonylurea |
| CN106332878A (en) * | 2016-08-26 | 2017-01-18 | 安徽久易农业股份有限公司 | Water dispersible granules containing penoxsulam and oxaziclomefone |
| CN107114391A (en) * | 2017-06-09 | 2017-09-01 | 北京科发伟业农药技术中心 | A kind of Herbicidal combinations containing penoxsuam and fenoxasulfone |
| CN107027786A (en) * | 2017-06-26 | 2017-08-11 | 江苏苏滨生物农化有限公司 | A kind of Herbicidal compositions for paddy fields |
| CN107996588A (en) * | 2017-12-22 | 2018-05-08 | 北京科发伟业农药技术中心 | Herbicidal combinations containing pinoxaden and pyroxsulam |
| CN109122705A (en) * | 2018-09-30 | 2019-01-04 | 江西正邦作物保护有限公司 | A kind of Herbicidal combinations and its application containing penoxsuam, oxaziclomefone and benthiocarb |
| CN109221192A (en) * | 2018-10-15 | 2019-01-18 | 安徽圣丰生化有限公司 | A kind of herbicidal composition and preparation method thereof containing penoxsuam |
| CN109221202A (en) * | 2018-12-01 | 2019-01-18 | 安徽美程化工有限公司 | A kind of Herbicidal combinations and its application containing penoxsuam, oxaziclomefone and cyhalofop-butyl |
| CN109247335A (en) * | 2018-12-01 | 2019-01-22 | 安徽美程化工有限公司 | A kind of Herbicidal combinations and its application containing penoxsuam, oxaziclomefone and bispyribac-sodium |
| CN109221201A (en) * | 2018-12-01 | 2019-01-18 | 安徽美程化工有限公司 | A kind of Herbicidal combinations and its application containing penoxsuam, oxaziclomefone and pretilachlor |
| CN110495464B (en) * | 2019-09-24 | 2021-06-22 | 安徽尚禾沃达生物科技有限公司 | Herbicidal composition containing quinclorac and application thereof |
| CN112088890A (en) * | 2020-10-22 | 2020-12-18 | 安徽润农腾辉生物科技有限公司 | Weeding composition containing oxaziclomefone, bensulfuron methyl and penoxsulam |
| CN117413841B (en) * | 2023-12-19 | 2024-08-30 | 山东科赛基农生物工程有限公司 | Comprises oxazin weeding composition of penoxsulam and anilofos and application thereof |
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