CN103518761A - Postemergence weedicide for crops - Google Patents
Postemergence weedicide for crops Download PDFInfo
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- CN103518761A CN103518761A CN201310453485.5A CN201310453485A CN103518761A CN 103518761 A CN103518761 A CN 103518761A CN 201310453485 A CN201310453485 A CN 201310453485A CN 103518761 A CN103518761 A CN 103518761A
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- nicosulfuron
- atrazine
- herbicide
- oils
- emulsifier
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Abstract
The invention relates to a postemergence weedicide for crops. The postemergence weedicide for the crops is an oil suspension, and is prepared from the following components in percentage by weight: 4% of nicosulfuron, 48% of atrazine, 8% of an emulsifier, 12% of a surfactant and 28% of oils. The postemergence weedicide for the crops is reasonable in formulation, effectively combines advantages of the nicosulfuron and the atrazine, improves the weedicidal effect, reduces the residual activity, reduces damage to the crop, delays the generation of drug resistance of weeds and community succession, reduces the drug amount and reduces environmental pollution; and aims of saving time, labor and money and reducing the burden of a farmer are achieved.
Description
Technical field
The present invention relates to a kind of weed killer herbicide, especially a kind of crop herbicide after seedling that contains nicosulfuron and atrazine.
Background technology
Weeds can win honour for crops, strive fertilizer, strive water, therefore farmland weed is produced and is caused very large loss to crops every year, the main method of control farmland weed is spraying herbicide at present, and the weed killer herbicide herbicide spectrum of unitary class is narrow, and the herbicidal composition of Recompounded multielement can expand herbicide spectrum.
Nicosulfuron has significant preventive effect to grassy weed and part broad leaved weed, but only good to part broad leaved weed activity, and its herbicide spectrum is narrower; Atrazine is before interior suction selectivity seedling, herbicide after seedling, root absorption is main, and cauline leaf absorbs seldom, and Cruciferae, pulse family weeds and some perennial weed are all had to certain inhibitory action, and easily by rainwater drip washing to soil compared with deep layer, also effective to some dark root grass.Therefore, the synergistic complex of agricultural chemicals is the effective ways that expand pesticide control spectrum and improve drug effect.
Summary of the invention
In order to solve nicosulfuron and atrazine, use separately the problem running into, the present invention proposes a kind of crop herbicide after seedling that contains nicosulfuron and atrazine, this weed killer herbicide effectively combines the advantage of nicosulfuron and atrazine, improve herbicidal effect, reduced residual activity, reduced the poisoning to crop, delay the generation of herbicide resistance and the succession of community, reduction dosage, reduce environmental pollution, reach simultaneously save time, laborsaving, economical, the object of reducing farmer's burdens.
A kind of crop herbicide after seedling of the present invention, this weed killer herbicide is oil-suspending agent, is formulated by following weight ratio by nicosulfuron, atrazine, emulsifier, surfactant and oils: nicosulfuron 4%, atrazine 48%, emulsifier 8%, surfactant 12%, oils 28%.
Its preparation method is: the amount of pressing nicosulfuron 4%, atrazine 48%, emulsifier 8%, surfactant 12% and oils 28%, take respectively nicosulfuron, atrazine, emulsifier, surfactant and oils, again each component is mixed, in sand mill, be ground to active ingredient particle diameter and be less than and send into feed bin after 3 μ m and carry out automatically becoming bag packing, make a kind of crop herbicide after seedling finished product.
Nicosulfuron is systemic herbicide, can be weeds cauline leaf and root absorption, in plant corpus, conduct subsequently, cause sensitive plant growth retardation, cauline leaf chlorisis, withered gradually, generally death in 20-25 days, but time that need be longer to some perennial weed in the situation that temperature is lower.4 leaves dispenser good drug efficacy before the phase after bud, when seedling is large, dispenser drug effect declines.
Atrazine is before interior suction selectivity seedling, seedling rear enclosed weed killer herbicide, and root absorption is main, and cauline leaf absorbs seldom, easily by rainwater drip washing to soil compared with deep layer, also effective to some dark root grass, but easily produce poisoning, the lasting period is also longer.Its herbicide spectrum is wider, can prevent and kill off multiple annual gramineae and broad leaved weed, be applicable to the dry crops such as corn, Chinese sorghum, sugarcane, fruit tree, nursery, forest land and prevent and kill off lady's-grass, barnyard grass, green foxtail, nutgrass flatsedge, amur foxtail, knotweed, lamb's-quarters, Cruciferae, pulse family weeds, especially corn is had to good selectivity (because there being removing toxic substances mechanism in Corn), some perennial weed is also had to certain inhibitory action.
Surfactant and emulsifier can increase stability, wetability and the permeability of composition.
Oils is mainly vegetable oil and mineral oil, as: machine oil, diesel oil, lubricating oil, soybean oil, levant cotton oil, peanut wet goods.
The invention has the beneficial effects as follows: a kind of crop herbicide after seedling, preparation rationally, effectively combine the advantage of nicosulfuron and atrazine, improve herbicidal effect, reduced residual activity, reduced the poisoning to crop, delay the generation of herbicide resistance and the succession of community, reduction dosage, reduce environmental pollution, reach simultaneously save time, laborsaving, economical, the object of reducing farmer's burdens.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
The preparation 1kg weed killer herbicide of the present invention of take is example, and its preparation method is:
Get respectively nicosulfuron 40g, atrazine 480g, emulsifier 80g, surfactant 120g and oils 280g, each component is mixed, in sand mill, be ground to active ingredient particle diameter and be less than and send into feed bin after 3 μ m and carry out automatically becoming bag packing, make a kind of crop herbicide after seedling finished product.
Embodiment 2
Three cotton experiment Tanakas, respectively weed killer herbicide of the present invention, 4% nicosulfuron and 48% atrazine are tested to contrast, by every mu, use and measure 125 grams of weed killer herbicide 90g of the present invention, 4% nicosulfuron 65g, 48% atrazines and be watered respectively 30kg, respectively in 3-5 leaf phase crop seedling posterior lobe phase, the weeds 2-4 leaf phase evenly sprays medicament, and after medicine, 30 days investigation strain preventive effect results are as follows:
Experiment shows, a kind of crop herbicide after seedling of the present invention can expand herbicide spectrum, improves the preventive effect to broadleaved herb, and to crop safety.
Claims (3)
1. a crop herbicide after seedling, it is characterized in that, this weed killer herbicide is formulated by following weight ratio by nicosulfuron, atrazine, emulsifier, surfactant and oils: nicosulfuron 4%, atrazine 48%, emulsifier 8%, surfactant 12%, oils 28%.
2. a kind of crop herbicide after seedling according to claim 1, is characterized in that, oils is mainly vegetable oil and mineral oil.
3. a kind of crop herbicide after seedling according to claim 1, it is characterized in that, press the amount of nicosulfuron 4%, atrazine 48%, emulsifier 8%, surfactant 12% and oils 28%, take respectively nicosulfuron, atrazine, emulsifier, surfactant and oils, again each component is mixed, in sand mill, be ground to active ingredient particle diameter and be less than and send into feed bin after 3 μ m and carry out automatically becoming bag packing, make a kind of crop herbicide after seedling finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453485.5A CN103518761A (en) | 2013-09-29 | 2013-09-29 | Postemergence weedicide for crops |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310453485.5A CN103518761A (en) | 2013-09-29 | 2013-09-29 | Postemergence weedicide for crops |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103518761A true CN103518761A (en) | 2014-01-22 |
Family
ID=49921400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310453485.5A Pending CN103518761A (en) | 2013-09-29 | 2013-09-29 | Postemergence weedicide for crops |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103518761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137847A (en) * | 2014-08-04 | 2014-11-12 | 安徽美兰农业发展股份有限公司 | Nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate |
| CN108157386A (en) * | 2017-12-25 | 2018-06-15 | 山东理工大学 | A kind of preparation and application of the nuisanceless weeding suspending agent of corn |
| CN109964951A (en) * | 2017-12-28 | 2019-07-05 | 山东侨昌化学有限公司 | A kind of mixed herbicide and its application containing nicosulfuron, clopyralid and atrazine |
-
2013
- 2013-09-29 CN CN201310453485.5A patent/CN103518761A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104137847A (en) * | 2014-08-04 | 2014-11-12 | 安徽美兰农业发展股份有限公司 | Nicosulfuron, atrazine and 2,4-D isooctyl ester compound oil-based suspension concentrate |
| CN104137847B (en) * | 2014-08-04 | 2016-03-02 | 安徽美兰农业发展股份有限公司 | The different monooctyl ester of nicosulfuron, atrazine and 2,4-D is composite dispersibles oil-suspending agent |
| CN108157386A (en) * | 2017-12-25 | 2018-06-15 | 山东理工大学 | A kind of preparation and application of the nuisanceless weeding suspending agent of corn |
| CN109964951A (en) * | 2017-12-28 | 2019-07-05 | 山东侨昌化学有限公司 | A kind of mixed herbicide and its application containing nicosulfuron, clopyralid and atrazine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140122 |
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| WD01 | Invention patent application deemed withdrawn after publication |