CN103210943A - Herbicidal composition - Google Patents
Herbicidal composition Download PDFInfo
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- CN103210943A CN103210943A CN2013101515636A CN201310151563A CN103210943A CN 103210943 A CN103210943 A CN 103210943A CN 2013101515636 A CN2013101515636 A CN 2013101515636A CN 201310151563 A CN201310151563 A CN 201310151563A CN 103210943 A CN103210943 A CN 103210943A
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- bentazone
- nicosulfuron
- herbicidal composition
- herbicidal combinations
- weed
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Abstract
The invention belongs to the technical field of pesticides, and relates to a herbicidal composition; and the herbicidal composition is characterized in that the active ingredient comprises bentazone and nicosulfuron, wherein the weight ratio between the bentazone and the nicosulfuron is (1:30)-(45:1). The herbicidal composition is used for controlling corn field annual gramineous weeds and broadleaf weeds, and is remarkable in weeding effect and safe to crops.
Description
Technical field the present invention relates to a kind of Recompounded pesticide, specifically the Herbicidal combinations of bentazone and nicosulfuron.
Background technology
Bentazone (bentazone) chemical name is: the 3-isopropyl-(1H)-benzo-2,1,3-thiadiazine-4-ketone-2, the 2-dioxide, bentazone is an inhibitor of photosynthesis, mainly absorbs by blade, after the spraying of dry land cauline leaf, penetrate into by blade earlier and suppress photosynthesis in the chloroplast, corn field uses also can pass to cauline leaf by root absorption.Can not be by not seeds germinated absorption, young shoot is by absorbing medicament also seldom in the soil layer process, so can only cauline leaf spray-on process use after weeds are unearthed.The medicament that falls into soil seldom is adsorbed, and easily drenches the soil deep layer, is also easily decomposed by edaphon, thereby should not be used as soil treatment.It is fast to kill the grass effect, 10h after the dispenser, and blade begins the flavescence of wilting.
Nicosulfuron (nicosulfuron) chemical name: 3-(4,6-dimethoxypyridin-2-yl)-1-(3-dimethylamino formylpyridine-2-yl) sulfonylureas is systemics, by leaf, stem, root absorption, conducts to meristematic tissue.The histocyte division stops growing weeds, and is withered subsequently.The weeds that are injured, move back green, albefaction at lobus cardiacus flavescence before this, other blades flavescence successively from top to bottom then, generally will be after dispenser the 3-4d beginning see the symptom of being injured, the death of 20-25d weeds.Be mainly used in corn field and prevent and kill off grassy weed and broad leaved weed and nutgrass flatsedge, Ru Matang, green foxtail, eleusine indica, barnyard grass grass, wild oat, wild wheat, black wheat, annual bluegrass, Radix seu Herba Astilbes rivularis, Amaranthus retroflexus, shepherd's purse, field thistle, kitchen garden and the rhizome of nutgrass flatsedge, cyperus iria etc.Preventive effect to grassy weed is better than broad leaved weed.
The present invention not only improves two kinds of composite reagents drug effect but also has prolonged the lasting period, and a drug can solve multiple weeds problem, reduces peasant's use cost greatly.
Summary of the invention
The objective of the invention is to shortcoming, the herbicidal composition that a kind of herbicidal effect is good, quick-acting is high, the lasting period is long, consumption is few is provided,, increase economic efficiency in the hope of reducing peasant's dispenser cost at prior art.Be specifically related to the Herbicidal combinations of bentazone and nicosulfuron.
Utilize Herbicidal combinations of the present invention, be equipped with the known auxiliary agent of those skilled in that art,, but make water dispersible granules dispersed oil suspending agent with those skilled in that art's known method.
In the above-mentioned Herbicidal combinations, the weight ratio of bentazone and nicosulfuron is 1:30 ~ 45:1.
Described Herbicidal combinations is mainly used in control of maize Tanaka's annual gramineous weed and broad leaved weed.
Advantage that bentazone and nicosulfuron herbicide composition have and beneficial effect: 1. weeding scope is wide, and control of maize field annual gramineae, broad leaved weed 2. adhesive force improve, and penetrability strengthens; 3. to corn safety; 4. use compound formulation, two kinds of weedings also have synergistic effect, and consumption reduces during all than single use, and stability increases, formulation advanced person, environmental protection.
But embodiment 1 42% bentazone nicosulfuron dispersed oil suspending agent
But according to the requirement of dispersed oil suspending agent formula, be medium with the methylated vegetable oil, active ingredient and dispersant, wetting agent, thickener, emulsifier for mixing is even, put into sand mill and grind evenly, but obtain the dispersed oil suspending agent.
But embodiment 2 22% bentazone nicosulfuron dispersed oil suspending agents
Embodiment 3 46% bentazone water dispersible granule of nicosulfuron
According to the prescription requirement, with wetting agent, dispersant, adhesive, filler etc. with fully mix in the ratio of prescription, after ultrafine crusher is pulverized, add an amount of purified water, make water dispersible granules through kneading, granulation, drying, screening.
But embodiment 4 6% bentazone nicosulfuron dispersed oil suspending agents
But embodiment 5 33% bentazone nicosulfuron dispersed oil suspending agents
Embodiment 6 15.5% bentazone water dispersible granule of nicosulfuron
But embodiment 7 12% bentazone nicosulfuron dispersed oil suspending agents
But embodiment 8 31% bentazone nicosulfuron dispersed oil suspending agents
But embodiment 9 10.5% bentazone nicosulfuron dispersed oil suspending agents
Embodiment
For the complex preparation of verifying bentazone and nicosulfuron has synergistic effect, the applicant at first experimentizes under the room temperature condition of pot, closes herbicidal effect to have measured bentazone, nicosulfuron and different blended combo thereof, estimates its synergy.
Test and Selection grassy weed barnyard grass grass, broad leaved weed rhizoma alismatis are as the target weeds.
Test method is as follows:
Adopt the check of gowing method to use the activity of back medicament with to barnyard grass grass and rhizoma alismatis, soil in the polypots amount of setting of high 7cm, diameter 10cm, to evenly sow in polypots for 20 in the seed of examination weeds, the thick thin sand and soil of lid 0.5-1cm, being placed on room temperature (about 20 ℃) cultivates, the above-mentioned former drug solns for preparing carries out composite and is diluted to the soup of finite concentration gradient, treat that weed growth carries out the cauline leaf spraying to the 3-5 leaf and handles during the phase, every alms bowl spraying liquid 1ml, each handles 4 repetitions, uses blank solution to compare.Handle the back test material and place cultivation in the room temperature, the growing state of routine observation weeds, be injured symptom and the growth inhibition situation of range estimation target weeds after 21 days, weighing strain fresh weight calculates fresh weight inhibiting rate (%).
The evaluation of effect method is estimated the weed killer herbicide synergy according to the gowing method.Work as E
0-E〉10% for synergistic effect; Work as E
0-E<-10% is antagonism; work as E
0-E value is addition between ± 10%.
Table 1 bentazone, the different proportionings of nicosulfuron are tested the result to the test of giving birth to of the activity of weeding of barnyard grass grass
Last table as can be seen, and is composite between two kinds of active ingredients, and the preventive effect of barnyard grass grass is had clearly synergistic effect.When bentazone and nicosulfuron are composite, synergistic effect is in various degree arranged all, illustrate that bentazone and nicosulfuron are composite in 1:30 arrives the 45:1 scope, can reach the effect of synergy.
Table 2 bentazone, the different proportionings of nicosulfuron are tested the result to the test of giving birth to of the activity of weeding of rhizoma alismatis
Last table as can be seen, and is composite between two kinds of active ingredients, and the preventive effect of rhizoma alismatis is had clearly synergistic effect.When bentazone and nicosulfuron are composite, synergistic effect is in various degree arranged all, illustrate that bentazone and nicosulfuron are composite in 1:30 arrives the 45:1 scope, can reach the effect of synergy.
Bentazone and nicosulfuron complex preparation have not only improved drug effect, and prolonged the lasting period, all there have been significant raising quick-acting and lasting period that this complex preparation is described than single agent, use this complex preparation, can reduce the use cost of peasant household greatly, have effective control of maize Tanaka's annual gramineous weed of a drug and broad leaved weed.
Claims (3)
1. Herbicidal combinations, it is characterized in that: described active component is made of bentazone and nicosulfuron, and the weight ratio of bentazone and nicosulfuron is 1:30~45:1.
2. Herbicidal combinations according to claim 1 is characterized in that: but make dispersed oil suspending agent, water dispersible granules by active ingredient and auxiliary material.
3. according to claim 1 or the described Herbicidal combinations of claim 2, it is characterized in that: be used for control of maize field annual gramineous weed and broad leaved weed.
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CN2013101515636A CN103210943A (en) | 2013-04-27 | 2013-04-27 | Herbicidal composition |
Applications Claiming Priority (1)
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CN2013101515636A CN103210943A (en) | 2013-04-27 | 2013-04-27 | Herbicidal composition |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106508954A (en) * | 2016-12-12 | 2017-03-22 | 安徽常泰化工有限公司 | Cornfield herbicide composition |
CN106689165A (en) * | 2015-07-20 | 2017-05-24 | 江苏龙灯化学有限公司 | Weeding composition |
CN115380911A (en) * | 2022-08-19 | 2022-11-25 | 广州华苑园林股份有限公司 | Mikania micrantha herbicide and preparation method and application thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1031174A (en) * | 1987-08-10 | 1989-02-22 | 石原产业株式会社 | Herbicidal combinations |
CN101595885A (en) * | 2009-07-10 | 2009-12-09 | 赵邦斌 | The Herbicidal combinations that is used for corn field |
-
2013
- 2013-04-27 CN CN2013101515636A patent/CN103210943A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1031174A (en) * | 1987-08-10 | 1989-02-22 | 石原产业株式会社 | Herbicidal combinations |
CN101595885A (en) * | 2009-07-10 | 2009-12-09 | 赵邦斌 | The Herbicidal combinations that is used for corn field |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106689165A (en) * | 2015-07-20 | 2017-05-24 | 江苏龙灯化学有限公司 | Weeding composition |
CN106508954A (en) * | 2016-12-12 | 2017-03-22 | 安徽常泰化工有限公司 | Cornfield herbicide composition |
CN115380911A (en) * | 2022-08-19 | 2022-11-25 | 广州华苑园林股份有限公司 | Mikania micrantha herbicide and preparation method and application thereof |
CN115380911B (en) * | 2022-08-19 | 2023-09-19 | 广州华苑园林股份有限公司 | Mikania micrantha control agent and preparation method and application thereof |
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Address after: 102488 No. 8, Liangxiang, Beijing, Fangshan District Applicant after: Beijing Yanhua Yongle Biotechnology Co., Ltd. Address before: 102488 No. 8, Liangxiang, Beijing, Fangshan District Applicant before: Beijing Yoloo Pesticide Co., Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: BEIJING YOLOO PESTICIDE CO., LTD. TO: BEIJING YANHUA YONGLE BIOTECHNOLOGYCO., LTD. |
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Application publication date: 20130724 |