CN103688944A - Weedicide for rice paddy fields - Google Patents
Weedicide for rice paddy fields Download PDFInfo
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- CN103688944A CN103688944A CN201310629323.2A CN201310629323A CN103688944A CN 103688944 A CN103688944 A CN 103688944A CN 201310629323 A CN201310629323 A CN 201310629323A CN 103688944 A CN103688944 A CN 103688944A
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- cyhalofop
- butyl
- pyribenzoxim
- herbicide
- paddy field
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Abstract
The invention discloses a weedicide for rice paddy fields, of which the effective components are cyhalofop-butyl, pyribenzoxim and carfentrazone-ethyl. The weedicide is composed of the following components in percentage by weight: 1-30% of cyhalofop-butyl, 1-20% of pyribenzoxim, 1-10% of carfentrazone-ethyl and the balance of pesticide adjuvant. The weedicide is suitable for preventing and removing annual weed in rice paddy fields, has obviously better preventing and removing effects than a single agent, and has the advantages of wide weeding spectrum, higher actual effect, lower drug resistance for weed, time saving, labor saving and the like.
Description
Technical field
The present invention relates to a kind of herbicide for paddy field, active ingredient is cyhalofop-butyl, pyribenzoxim and azoles humulone.
Background technology
Chemical method weeding is one of Main Means of paddy field prevention and control weeds.Paddy field weed generation grass is complicated mutually, and the multiclass weeds such as grassy weed, broad leaved weed, sedge family are mixed raw, and single variety weed killer herbicide is used can not solve paddy field weed, all can show defect and limitation in a certain respect.By variety classes weed killer herbicide science, be mixed, there is the herbicidal spectrum of raising, promote actual effect, time and labour saving advantage.
Cyhalofop-butyl is in fragrant phenoxy phenoxy propionic acid weed killer herbicide, paddy rice to be had the kind of tight security.Cyhalofop-butyl is also interior suction conductivity weed killer herbicide, blade and leaf sheath by plant corpus absorb, phloem conduction, accumulate the meristem zone in plant corpus, suppress acetyl-CoA carboxylase, fatty acid is synthesized and stop, the growth division of cell can not normally be carried out, film systems etc., containing fat structural deterioration, finally cause plant dead.Cyhalofop-butyl, not only to moleplant seed, also can be prevented and treated the grassy weeds such as barnyard grass, Paspalum distichum, green foxtail, eleusine indica, amur foxtail.
Pyribenzoxim is novel oxime ester compound, wide spectrum selective post-emergence herbicide.Mechanism of action is similar to sulfonylurea and the slow-witted ketone weed killer herbicide of imidazoles, all belongs to acetolactate synthestase (ALS) inhibitor.Paddy rice, common wheat, Korea lawn grass are had to activity of weeding after selectivity super-high-efficient bud, without activity of weeding before bud, distinguished for preventing and kill off the various grassy weeds such as barnyard grass, large fringe amur foxtail, polygonum flaccidum and the assorted effect of drawing of broad-leaved, to paddy rice, common wheat safety.Chemical weeding speed is slower, after dispenser, can suppress weed growth, but must be withered after 2 weeks.Medicament medication appropriateness is wider, all effective to 1.5～6.5 leaf phases of barnyard grass.
Azoles humulone is by suppressing protoporphyrin oxidase, thereby film division is used on cereal crop, for leaf surface treatment after seedling, responsive broad leaved weed conduction is obstructed and very quick-drying is withered dies.To cereal crop safety such as wheat, corn, paddy rice, to thering is special efficacy in long-term weeds of using sulfonylureas weed killer herbicide area to develop immunity to drugs, to succession crop safety.
Variety classes combinations of herbicides, have herbicidal spectrum wide, promote actual effect, delay herbicide resistance, time and labour saving advantage.By mixed pesticide, screening, can effectively improve actual control efficiency, reduce dosage, reduce costs, delay the generation of herbicide resistance, is the important means that agricultural synthesis is administered.The inventor conducts in-depth research the formula of cyhalofop-butyl, pyribenzoxim and azoles humulone, find that cyhalofop-butyl, pyribenzoxim and azoles humulone are mixed, in certain mixed ratio scope, paddy field annual weed is had to synergistic effect, 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 farmland weed comprehensive regulation.
Another object of the present invention is to provide said composition for preventing and kill off farmland weed, is particularly useful for preventing and kill off paddy field annual weed.
Technical scheme: for achieving the above object, the invention provides a kind of herbicide for paddy field, active ingredient is cyhalofop-butyl, pyribenzoxim and azoles humulone, the percentage by weight of cyhalofop-butyl in composition is 1%～30%, the percentage by weight of pyribenzoxim in composition is 1%～20%, the percentage by weight of azoles humulone in composition is 1%～10%, and all the other are insecticides adjuvant.
The insecticides adjuvant using in the present invention 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 require to determine by simple test according to formula.
The production technology of various application forms of the present invention all belongs to existing known technology, does not repeat them here.
Herbicide for paddy field provided by the invention, conventionally adopts and is watered spray method use, also can adopt as required other operation techniques of the upper application of agricultural.
Herbicide for paddy field provided by the invention, should be in the 3 leaf phases of paddy rice to the shooting stage in when application, and annual weed was used before the phase to 5 leaves after being unearthed.
Herbicide for paddy field provided by the invention has following beneficial effect:
1, a kind of herbicide for paddy field provided by the invention, in certain ratio range, its synergy shows obvious synergistic effect, and the herbicidal effect of composition is significantly improved than each single dose, expands herbicidal spectrum.
2, a kind of herbicide for paddy field provided by the invention, they are different containing active ingredient mechanism of action, and the application of composition can delay or overcome the generation of herbicide resistance, is conducive to agricultural synthesis and administers.
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 percentage is all weight percentage.
Preparation method embodiment mono-:
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make 30% cyhalofop-butyl pyribenzoxim azoles humulone wetting powder.
Preparation method embodiment bis-:
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high shear mixing, allotment makes 20% cyhalofop-butyl pyribenzoxim azoles humulone suspending agent.
Preparation method embodiment tri-:
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 60% cyhalofop-butyl pyribenzoxim azoles humulone water-dispersible granules in proportion.
Field control effectiveness test embodiment mono-: the field control effectiveness test of preventing and kill off rice direct seeding field annual weed
Test medicine and processing:
(1) 30% azoles humulone pyribenzoxim cyhalofop-butyl wetting powder (5% azoles humulone, 10% pyribenzoxim: 15% cyhalofop-butyl), 2g (a.i.)/667m
2;
(2) 20% azoles humulone pyribenzoxim cyhalofop-butyl suspending agents (3% azoles humulone, 7% pyribenzoxim, 10% cyhalofop-butyl), 2g (a.i.)/667m
2;
(3) 60% azoles humulone pyribenzoxim cyhalofop-butyl water-dispersible granules (10% azoles humulone, 20% pyribenzoxim, 30% cyhalofop-butyl), 2g (a.i.)/667m
2;
Contrast medicament and dispenser dosage:
(4) 40% azoles humulone wetting powders, 2g (a.i.)/667m
2;
(5) 5% pyribenzoxim missible oil, 2g (a.i.)/667m
2;
(6) 15% cyhalofop-butyl missible oils, 6g (a.i.)/667m
2;
(7) artificial weeding.
Spraying time: on August 10th, 2013, after rice transplanting 10 days, 4 leaf phases of paddy rice, 3 leaf phases of weeds
Test site: Lao Keng village, Ren Shan town, Huidong County, Huizhou.
Result of the test: in Table 3.As can be seen from the test results: after dispenser 20 days, the present invention prevented and kill off rice seedling throwing field annual weed preventive effect more than 95%, significantly better than single dose of each contrast of cyhalofop-butyl, pyribenzoxim and azoles humulone.In process of the test, each medicament is showed no generation poisoning, to rice safety.
Table 3, prevent and kill off rice seedling throwing field annual weed field control effectiveness test result (after medicine 20 days).
Claims (4)
1. a herbicide for paddy field, it is characterized in that: active ingredient is cyhalofop-butyl, pyribenzoxim and azoles humulone, the percentage by weight of cyhalofop-butyl in composition is 1%～30%, the percentage by weight of pyribenzoxim in composition is 1%～20%, the percentage by weight of azoles humulone in composition is 1%～10%, and all the other are insecticides adjuvant.
2. a kind of herbicide for paddy field according to claim 1, is characterized in that: described insecticides adjuvant is one or more the mixing in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, pH adjusting agent, defoamer, antifreezing agent, packing agent etc.
3. a kind of herbicide for paddy field according to claim 1, is characterized in that: its formulation is a kind of in suspending agent, wetting powder or water dispersible granules.
4. a kind of herbicide for paddy field according to claim 1, is characterized in that: be applicable to prevent and kill off paddy field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629323.2A CN103688944B (en) | 2013-11-28 | 2013-11-28 | A kind of herbicide for paddy field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310629323.2A CN103688944B (en) | 2013-11-28 | 2013-11-28 | A kind of herbicide for paddy field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103688944A true CN103688944A (en) | 2014-04-02 |
| CN103688944B CN103688944B (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310629323.2A Active CN103688944B (en) | 2013-11-28 | 2013-11-28 | A kind of herbicide for paddy field |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101664034A (en) * | 2009-08-23 | 2010-03-10 | 徐宝玉 | Compound herbicide of carfentrazone, cyhalofop butyl and bichlorid quinolinic acid |
| CN101707997A (en) * | 2009-12-01 | 2010-05-19 | 安徽丰乐农化有限责任公司 | Complex herbicide for treating stems and leaves of rice |
| CN102027492A (en) * | 2008-03-10 | 2011-04-20 | Ubs股份公司 | Methods and systems for group data management and classification |
| CN102273459A (en) * | 2011-06-21 | 2011-12-14 | 王从爱 | Weeding composition containing pyribenzoxim and cyhalofopbutyl |
| CN103262843A (en) * | 2013-06-05 | 2013-08-28 | 江苏龙灯化学有限公司 | Synergistic herbicide composition |
| CN103271062A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Synergistic weeding composition |
-
2013
- 2013-11-28 CN CN201310629323.2A patent/CN103688944B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102027492A (en) * | 2008-03-10 | 2011-04-20 | Ubs股份公司 | Methods and systems for group data management and classification |
| CN101664034A (en) * | 2009-08-23 | 2010-03-10 | 徐宝玉 | Compound herbicide of carfentrazone, cyhalofop butyl and bichlorid quinolinic acid |
| CN101707997A (en) * | 2009-12-01 | 2010-05-19 | 安徽丰乐农化有限责任公司 | Complex herbicide for treating stems and leaves of rice |
| CN102273459A (en) * | 2011-06-21 | 2011-12-14 | 王从爱 | Weeding composition containing pyribenzoxim and cyhalofopbutyl |
| CN103262843A (en) * | 2013-06-05 | 2013-08-28 | 江苏龙灯化学有限公司 | Synergistic herbicide composition |
| CN103271062A (en) * | 2013-06-05 | 2013-09-04 | 江苏龙灯化学有限公司 | Synergistic weeding composition |
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| Publication number | Publication date |
|---|---|
| CN103688944B (en) | 2016-08-17 |
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