CN104082327A - Pesticide composition for post-emergence weeding for cornfield - Google Patents
Pesticide composition for post-emergence weeding for cornfield Download PDFInfo
- Publication number
- CN104082327A CN104082327A CN201410299517.5A CN201410299517A CN104082327A CN 104082327 A CN104082327 A CN 104082327A CN 201410299517 A CN201410299517 A CN 201410299517A CN 104082327 A CN104082327 A CN 104082327A
- Authority
- CN
- China
- Prior art keywords
- prosulfuron
- nicosulfuron
- bromoxynil octanoate
- pesticide composition
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention discloses a pesticide composition for post-emergence weeding for a cornfield. The pesticide composition comprises the following active ingredients in percentage by weight: 0.1%-20% of prosulfuron, 0.1%-30% of bromoxynil octanoate, 0.1%-20% of nicosulfuron, and the balance of pesticide auxiliaries. According to application requirements, the pesticide composition can be prepared into one of dispersible oil suspension, suspension, wettable powder and water dispersible granule; the pesticide composition has the effect obviously superior to that of each single ingredient on annual weeds in the cornfield, so that the dosage is reduced and the herbicide resistance of the weeds is retarded.
Description
Technical field
The present invention relates to a kind of composition pesticide for corn field postemergence weed control, active ingredient is prosulfuron, bromoxynil octanoate and nicosulfuron, for preventing and kill off corn field annual weed.
Background technology
Chemical method weeding is one of upper Main Means of controlling weeds of agricultural.In recent years, because some weed killer herbicide kind large area are used separately, caused a lot of weeds to develop immunity to drugs.Meanwhile, grass when weeds occur is complicated mutually, and multiple weeds are mixed raw, and single variety weed killer herbicide uses can not solve farmland weed, all can show defect and limitation in a certain respect.Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.
Prosulfuron belongs to sulfonylurea herbicide, can suppress the synthetic of weeds branched-chain amino acid, thereby suppresses the biosynthesis of valine, leucine, isoleucine, stops cell division, and sensitive crop is stopped growing.To corn field annual broadleaf weed, as preventive effect excellences such as piemarker, amaranth, lamb's-quarters, chickweeds, and its longevity of residure is shorter than other sulfonylurea herbicides.
Bromoxynil octanoate is that after selectivity seedling, cauline leaf is processed contact killing type weed killer herbicide, mainly absorbed by blade, in plant corpus, carry out extremely limited conduction, by each process of inhibited photosynthesis, comprise and suppress photophosphorylation reaction and electronics transmission, particularly photosynthetic Hill reaction, make plant tissue downright bad rapidly, thereby reach herbicide object, when temperature is higher, speeding-up blade is withered, efficient to multiple broad leaved weeds such as corn field knotweed, lamb's-quarters, amaranth, conical silene herb, black nightshade, Siberian cocklebur, field bindweeds.
Nicosulfuron belongs to sulfonylurea herbicide, and as efficient corn herbicide, nicosulfuron uses after low dosage bud, can effectively prevent and kill off multiple annual gramineous weed in corn field, fraction broad leaved weed and sedge weed.It is absorbed rapidly by leaf and root, and conducts rapidly by xylem and phloem.Stop the synthetic of branched-chain amino acid by suppressing acetolactate synthestase.Use rear weeds and stop growing immediately, 4～5 days young leaves fade, necrosis, and progressively expand to whole plant, plant death in 20～25 days after processing under general condition.Corn has good drug resistance to this medicine, occurs temporary transient chlorisis or slight hypoevolutism, but generally can recover rapidly and the not underproduction after processing.
Variety classes weed killer herbicide mixture, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.Screening by formulation of pesticide, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay disease, worm, the drug-fast generation of crop smothering, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula screening of prosulfuron, bromoxynil octanoate and nicosulfuron, find that prosulfuron, bromoxynil octanoate and nicosulfuron carry out mixture, in certain mixed ratio scope, corn field annual weed is had to synergy or summation action, after further study, completed the present invention.
Summary of the invention
The object of the invention is to solve in prior art to farmland weed develop immunity to drugs problem and actual control efficiency poor, provide a kind of efficient, low toxicity, quick-acting is good and the lasting period is long, is conducive to the composition pesticide of the corn field weed comprehensive regulation.
Particularly there is comparatively serious corn field for broad leaved weed, active ingredient prosulfuron and bromoxynil octanoate in composition pesticide of the present invention have been strengthened the control efficiency to broad leaved weed greatly, on this basis, then add nicosulfuron can effectively prevent and treat most of grassy weed.
Technical solution of the present invention: a kind of composition pesticide for corn field postemergence weed control, active ingredient is prosulfuron, bromoxynil octanoate and nicosulfuron, the percentage by weight of prosulfuron in composition is 0.1%～20%, the percentage by weight of bromoxynil octanoate in composition is 0.1%～30%, the percentage by weight of nicosulfuron in composition is 0.1%～20%, and all the other are insecticides adjuvant.
Composition pesticide of the present invention can, according to well known to a person skilled in the art method, be selected suitable insecticides adjuvant, is mixed with the application forms of the applicable agricultural uses such as suspending agent, oil-suspending agent, water dispersible granules, wetting powder.
The insecticides adjuvant that the present invention uses comprises solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, deionized water, filler etc., be all various auxiliary agents conventional in Pesticide formulation, concrete composition and consumption required simple test to determine according to formula.
The production technology of the various application forms of composition pesticide provided by the invention all belongs to existing known technology, does not repeat them here.
Composition pesticide provided by the invention, adopts spray method to use conventionally, also can adopt as required other operation techniques of the upper application of agricultural.
Composition pesticide provided by the invention, should use in 3～5 leaf phases of corn field annual weed in use.But, before the 2 leaf phases of corn or after 5 leaf phases, can not use this Herbicidal combinations, in case poisoning appears in corn.
Composition pesticide provided by the invention has following beneficial effect:
1, composition pesticide provided by the invention, in certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single dose, reduce the using dosage of agricultural chemicals, reduce medication number of times, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, composition pesticide provided by the invention, the combination of three kinds of active ingredients, has expanded herbicidal spectrum, and a drug can solve weeds problem, has made up defect and limitation when single dose is used.
3, composition pesticide provided by the invention, three kinds of active ingredient mechanism of action are not quite identical, can overcome long-term single use and easily produce the shortcoming of resistance, extend the service life of medicament, to the comprehensive regulation important in inhibiting of Weed Resistance.
4, composition pesticide provided by the invention, rapidly, the lasting period is long in drug effect performance, and use cost is low, easy to use, time saving and energy saving, and it applies huge economic benefit and social benefit.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the present invention describes with following specific embodiment, but the present invention only limits to absolutely not these examples.The following stated is only the good embodiment of the present invention, only for describing the present invention, can not be interpreted as the restriction to scope of the present invention.It should be pointed out that all any amendments of making within the spirit and principles in the present invention, be equal to replacement and improvement etc., within all should being included in protection scope of the present invention.
Example of formulations 1:39% prosulfuron bromoxynil octanoate nicosulfuron suspending agent.
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 39% prosulfuron bromoxynil octanoate nicosulfuron suspending agent.
Example of formulations 2:33% prosulfuron bromoxynil octanoate nicosulfuron dispersibles oil-suspending agent.
Above-mentioned formula Central Plains medicine, solvent, emulsifiers dissolve are become to even oil phase; Under high-speed stirred, mixing makes 33% prosulfuron bromoxynil octanoate nicosulfuron and dispersibles oil-suspending agent.
Example of formulations 3:65% prosulfuron bromoxynil octanoate nicosulfuron wetting powder.
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make 65% prosulfuron bromoxynil octanoate nicosulfuron wetting powder.
Example of formulations 4:55% prosulfuron bromoxynil octanoate water dispersible granule of nicosulfuron.
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 55% prosulfuron bromoxynil octanoate water dispersible granule of nicosulfuron in proportion.
Field control effectiveness test embodiment 1: prevent and kill off corn field annual weed field control effectiveness test.
Reagent agent and dispenser dosage:
(1) 39% prosulfuron bromoxynil octanoate nicosulfuron suspending agent (3% prosulfuron: 30% bromoxynil octanoate: 6% nicosulfuron), per hectare 450 grams of active ingredients (1#).
(2) 33% prosulfuron bromoxynil octanoate nicosulfurons dispersible oil-suspending agent (3% prosulfuron: 24% bromoxynil octanoate: 6% nicosulfuron), per hectare 450 grams of active ingredients (2#).
(3) 65% prosulfuron bromoxynil octanoate nicosulfuron wetting powders (5% prosulfuron: 50% bromoxynil octanoate: 10% nicosulfuron), per hectare 450 grams of active ingredients (3#).
(4) 55% prosulfuron bromoxynil octanoate water dispersible granule of nicosulfuron (5% prosulfuron: 40% bromoxynil octanoate: 10% nicosulfuron), per hectare 450 grams of active ingredients (4#).
Contrast medicament and dispenser dosage:
(5) 15% prosulfuron wetting powders, per hectare 25 grams of active ingredients (5#).
(6) 25% bromoxynil octanoate oil-suspending agents, per hectare 400 grams of active ingredients (6#).
(7) 8% nicosulfuron oil-suspending agents, per hectare 53 grams of active ingredients (7#).
Test site: bamboo plantation village, Ren Shan town, Huizhou Huidong County.
Subjects and method: lady's-grass, green foxtail, kitchen garden, Siberian cocklebur, lamb's-quarters, in 3～5 leaf phases of corn, this Herbicidal combinations is watered to 30 liters/mu, carry out cauline leaf spraying.
Result of the test: in table 1, as can be seen from the test results: the present invention reaches more than 90.4% the average preventive effect of corn field annual weed, significantly better than the single dose of contrast, synergistic effect is remarkable, and having expanded herbicidal spectrum, quick-acting and lasting period are obviously better than single dose.Duration of test, there is slight blade spot in corn, within 15 days, recovers afterwards normal.Herbicidal combinations of the present invention, to corn safety, affects without the underproduction.
Table 1, control of maize field annual weed field control effectiveness test result (after medicine 24 days).
Claims (3)
1. the composition pesticide for corn field postemergence weed control, it is characterized in that: active ingredient is prosulfuron, bromoxynil octanoate and nicosulfuron, the percentage by weight of prosulfuron in composition is 0.1%～20%, the percentage by weight of bromoxynil octanoate in composition is 0.1%～30%, the percentage by weight of nicosulfuron in composition is 0.1%～20%, and all the other are insecticides adjuvant.
2. a kind of composition pesticide for corn field postemergence weed control according to claim 1, is characterized in that: its formulation is the one in suspending agent, oil-suspending agent, wetting powder or water dispersible granules.
3. a kind of composition pesticide for corn field postemergence weed control according to claim 1, is applicable to prevent and kill off corn field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299517.5A CN104082327A (en) | 2014-06-26 | 2014-06-26 | Pesticide composition for post-emergence weeding for cornfield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410299517.5A CN104082327A (en) | 2014-06-26 | 2014-06-26 | Pesticide composition for post-emergence weeding for cornfield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104082327A true CN104082327A (en) | 2014-10-08 |
Family
ID=51630177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410299517.5A Pending CN104082327A (en) | 2014-06-26 | 2014-06-26 | Pesticide composition for post-emergence weeding for cornfield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104082327A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041592A (en) * | 1988-05-10 | 1990-04-25 | 日产化学工业株式会社 | Sultamsulfonamide derivatives and weedicide |
| CN1041592C (en) * | 1992-05-06 | 1999-01-13 | 诺瓦提斯公司 | Synergistic composition and method for selective preventing against growth of and removing of weeds |
| CN101953358A (en) * | 2010-10-22 | 2011-01-26 | 吉林金秋农药有限公司 | Weedicide composition, preparation method thereof and application thereof |
| WO2013168643A1 (en) * | 2012-05-08 | 2013-11-14 | 石原産業株式会社 | Herbicidal composition |
-
2014
- 2014-06-26 CN CN201410299517.5A patent/CN104082327A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041592A (en) * | 1988-05-10 | 1990-04-25 | 日产化学工业株式会社 | Sultamsulfonamide derivatives and weedicide |
| CN1041592C (en) * | 1992-05-06 | 1999-01-13 | 诺瓦提斯公司 | Synergistic composition and method for selective preventing against growth of and removing of weeds |
| CN101953358A (en) * | 2010-10-22 | 2011-01-26 | 吉林金秋农药有限公司 | Weedicide composition, preparation method thereof and application thereof |
| WO2013168643A1 (en) * | 2012-05-08 | 2013-11-14 | 石原産業株式会社 | Herbicidal composition |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101933515A (en) | Herbicide composition for paddy field | |
| CN102524272B (en) | Weeding combination | |
| CN103518739A (en) | Herbicide containing topramezone and atrazine | |
| CN104970024A (en) | Herbicide composition and using method thereof | |
| CN104522026A (en) | Weed control composition containing propyrisulfuron and oxyfluorfen | |
| CN103636647A (en) | Topramezone-rimsulfuron-containing weeding composition | |
| CN102986688A (en) | Soybean field weeding composition and preparation thereof | |
| CN103688970A (en) | Herbicidal composition containing foramsulfuron and fluroxypyr | |
| CN105557704A (en) | Paddy rice field weeding composition | |
| CN104542663A (en) | Weeding composition containing halosulfuron-methyl and quinclorac as well as fluroxypyr | |
| CN102440263A (en) | Herbicide mixture and its preparation method and application method | |
| CN105519555A (en) | A flufenacet-containing post-emergence compound herbicide for corn fields and a preparing method thereof | |
| CN102792953B (en) | Herbicide composition including metamifop and cyclosulfamuron | |
| CN104542662A (en) | Weeding composition containing amicarbazone, fluroxypyr and nicosulfuron | |
| CN103120173A (en) | Paddy field weeding composition | |
| CN104106586A (en) | Weeding composition containing prosulfuron | |
| CN103081944A (en) | Weeding composition and herbicide | |
| CN104082327A (en) | Pesticide composition for post-emergence weeding for cornfield | |
| CN103583540A (en) | Weeding composition for preventing and weeding gramineae and broad-leaf weeds of paddy field | |
| CN102369931B (en) | Weeding combination for eliminating weed in wheat field | |
| CN104585203A (en) | Post-emergence herbicide composition used in corn fields | |
| CN103583531A (en) | Weeding composition for preventing and removing grassy weeds of paddy field | |
| CN103960267A (en) | Herbicidecomposition containing thifensulfuron-methyl and pyroxsulam | |
| CN104082328A (en) | Post-emergence herbicide for cornfield | |
| CN104255760A (en) | Weeding composition containing bentazone and rimsulfuron |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |
|
| RJ01 | Rejection of invention patent application after publication |