CN104430449B - A kind of Herbicidal combinations containing amidosulfuron and pyroxsulam - Google Patents
A kind of Herbicidal combinations containing amidosulfuron and pyroxsulam Download PDFInfo
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- CN104430449B CN104430449B CN201410699309.4A CN201410699309A CN104430449B CN 104430449 B CN104430449 B CN 104430449B CN 201410699309 A CN201410699309 A CN 201410699309A CN 104430449 B CN104430449 B CN 104430449B
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- pyroxsulam
- amidosulfuron
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Abstract
The invention discloses a kind of Herbicidal combinations containing amidosulfuron and pyroxsulam, it includes active component amidosulfuron and pyroxsulam, and remaining is insecticides adjuvant, and the quality parts ratio of amidosulfuron and pyroxsulam in Herbicidal combinations is 1：5~5：1, the mass percent of amidosulfuron and pyroxsulam quality summation in Herbicidal combinations is 3%~94%.According to needs are applied, the present invention can be prepared into one kind in dispersible oil-suspending agent, suspending agent, wettable powder, water dispersible granules, for preventing and kill off winter wheat field annual grassy weeds.
Description
Technical field
The present invention relates to a kind of Herbicidal combinations containing amidosulfuron and pyroxsulam, for preventing and treating winter wheat field 1 year
Raw weeds.
Background technology
Chemical method weeding is agriculturally to control one of Main Means of weeds.In recent years, due to some herbicide kinds
Large area is used alone, and already leads to many weeds and develops immunity to drugs.Meanwhile, grass when weeds occur is mutually complicated, and grass family is miscellaneous
The mixed life of grass, broad leaved weed, nutgrass flatsedge multiclass weeds, single variety herbicide use can not solve farmland weed, can show certain
The defect and limitation of one side.Variety classes herbicide mixture, with herbicidal spectrum it is wide, lift actual effect, delay weeds to resist
The advantages of property of medicine, time and labour saving.
Amidosulfuron belongs to sulfonylurea herbicide, is the inhibitor of acetolactate synthase, and grass cutting blade is absorbed after medicament
Stop growing, blade chlorisis, it is then withered.Broad leaved weed such as Descurainia sophia, shepherd's purse are prevented and kill off for wheat paddock, Lepidium apetalum, lamb's-quarters, broadcast
Ma wormwood artemisia, pale persicaria, Armstrong, field bindweed, lettuce are bought vegetables.
Pyroxsulam is sulfonamides inner sucting conduction type, selective wheat paddock herbicide after seedling, by grass cutting blade, sheath portion,
Stem or root absorption, in growing point accumulation, suppress acetolactate synthestase, it is impossible to synthesize branched-chain amino acid, and then influence egg
The synthesis of white matter, causes weeds to stop growing, yellow and then death, pyroxsulam to the main grassy weed bromegrass of wheat paddock,
Amur foxtail excellent, while can simultaneous anti-part broad leaved weed.
Variety classes herbicide mixture, with herbicidal spectrum it is wide, lift actual effect, delay herbicide resistance, time and labour saving
Advantage.Screened by formulation of pesticide, actual prevention effect can be effectively improved, reduced dosage, reduce cost, delay disease, worm, grass
Evil is drug-fast to be produced, and is the important means that agricultural synthesis is administered.The present inventor sieves to amidosulfuron and the formula of pyroxsulam
Choosing has made intensive studies, it is found that amidosulfuron and pyroxsulam carry out mixture, in certain mixed ratio scope to winter wheat
Field annual grassy weeds has synergistic effect, after further study, complete the present invention.
The content of the invention
It is an object of the invention to solve developed immunity to drugs in the prior art to farmland weed problem and actual prevention effect
It is poor that there is provided one kind is efficient, low toxicity, quick-acting are good and the lasting period is long, are conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
It is another object of the present invention to be used to the Herbicidal combinations prevent and kill off farmland weed, particularly for winter wheat field 1 year
Raw weeds etc..
Technical scheme：To achieve the above object, grand and pyroxsulam the weeding of phonetic acyl sulphur is contained the invention provides a kind of
The quality parts ratio of composition, amidosulfuron and pyroxsulam is 1：5~5：1, amidosulfuron and pyroxsulam quality summation exist
Mass percent in Herbicidal combinations is 3%~94%, and remaining is insecticides adjuvant.
The Herbicidal combinations of the present invention are prepared into any one formulation for being adapted to agriculturally use with known method, compare
Good formulation has dispersible oil-suspending agent, suspending agent, wettable powder, water dispersible granules, and the processing technology of various preparations is
Prior art, can be varied from according to different situations.
The auxiliary agent used in Herbicidal combinations of the present invention includes solvent, emulsifying agent, wetting agent, stabilizer, dispersant, thickening
Agent, pH adjusting agent, defoamer, antifreezing agent, packing agent etc. are beneficial to active ingredient and stablize and play the known of drug effect in the formulation
Material, is all the various composition commonly used in pesticidal preparations or allow to use, and specific composition and consumption pass through examination according to recipe requirements
Test determination.
Product described in the invention can be provided in the form of finished product preparation, i.e., each material is blended in composition, group
The composition of compound can also single dose form provide, using it is preceding directly in tank or bucket mix, be then diluted to required for it is dense
Degree.
Herbicidal combinations of the present invention, are used in the leaf phase of winter wheat field annual grassy weeds 2~5 using cauline leaf spray method,
Technology can be used using other agriculturally applied as needed.
The frequency of administration and amount of application of Herbicidal combinations of the present invention change and changed with weather conditions and weeds situation, can be with
The purpose prevented and kill off is reached by using appropriate dosage.
The technology of the present invention is originated：
To further appreciate that the synergy of amidosulfuron and pyroxsulam mixture to weeds, the present inventor is to amidosulfuron
Formulation screening test has been carried out with pyroxsulam mixture：
Test material：
Descurainia sophia [Descuminia sophia (L.) webb.Ex Prantl] (field collection seed).
Amur foxtail [Alopecurus aequalis Sobol] (field collection seed).
Test apparatus：
Controllable illumination box；POTTER precision laboratory spray towers；Electronic balance (sensibility reciprocal 0.1mg)；Micropipette rifle
Deng.
Test method：
The purity for first weighing certain mass is 98% amidosulfuron active compound, 96.5% pyroxsulam active compound, adds acetone and fills
Divide the Tween 80 aqueous solution dilution with 0.1% after dissolving, single dose mother liquor is configured to respectively, sets series to match somebody with somebody according to mixture purpose
Than each proportioning sets 5~7 concentration gradients.Representative susceptible weeds seed, culture are selected according to single dose herbicide controlling spectrum
It is standby to the heart of 3 leaf 1.By after the weeds cauline leaf process for selecting numbering, incubated at room temperature 20 days in illumination box are placed on, preventing and treating is calculated
Effect (fresh weight preventive effect or strain preventive effect), then calculates dense EC in suppressing with least square method50(95% confidence limit), then use Sun Yunpei
Method calculates co-toxicity coefficient (CTC).
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect；Co-toxicity coefficient (CTC)≤80 shows as antagonism；80 ＜
Co-toxicity coefficient (CTC) ＜ 120 shows as summation action.
Survey toxicity index (ATI)=(standard agent EC50/ reagent agent EC50)×100
Theoretical toxicity index (TTI)=(A percentage composition in A toxicity index × mixture)+(B toxicity index × mixed
B percentage composition in agent)
Co-toxicity coefficient (CTC)=[mixture actual measurement toxicity index (ATI)/mixture theoretical toxicity index (TTI)] × 100
Measurement result shows that amidosulfuron is with pyroxsulam in mixed ratio 1：5~5：Between 1, with obvious synergy
The mixed ratio of effect, amidosulfuron and pyroxsulam is 5：1 and 1:When 5, the synergistic effect to Descurainia sophia and amur foxtail is most bright
Aobvious, co-toxicity coefficient respectively reaches 136.97 and 138.42.
The synergy measurement result table of table 1, different ratio amidosulfuron and pyroxsulam to Descurainia sophia
The synergy measurement result table of table 2, different ratio amidosulfuron and pyroxsulam to amur foxtail
The Herbicidal combinations that the present invention is provided have the advantages that：
1st, the Herbicidal combinations that the present invention is provided, show obvious synergistic effect, composition in certain ratio range
Prevention effect be significantly improved than single dose, reduce the dosage of agricultural chemicals, reduce times for spraying, reduce medication into
This, reduces adverse effect of the agricultural chemicals to ecological environment.
2nd, the Herbicidal combinations that the present invention is provided, the combination of two kinds of effective ingredients expands herbicide controlling spectrum, a drug
Weed problem is solved, the defect and limitation when single dose is used is compensate for.
3rd, the Herbicidal combinations that the present invention is provided, drug effect plays rapid, and the lasting period is long, and use cost is low, easy to use, saves
Shi Shengli, its popularization and application have huge economic benefit and social benefit.
Embodiment
In order that the objects, technical solutions and advantages of the present invention are more concise, present invention specific examples below
Illustrate, but the present invention is only limitted to absolutely not these examples.As described below is only the present invention preferably embodiment, is used only for retouching
State the present invention, it is impossible to be interpreted as limiting the scope of the present invention.It should be pointed out that it is all the spirit and principles in the present invention it
Interior done any modifications, equivalent substitutions and improvements etc., should be included in the scope of the protection.Therefore, it is of the invention
The protection domain of patent should be determined by the appended claims.
Example of formulations one：(20% amidosulfuron pyroxsulam wettable powder)
It is well mixed entering after above-mentioned formula in proportion coarse crushing in blender, then i.e. obtained 20% after air-flow crushing
Amidosulfuron pyroxsulam wettable powder.
Example of formulations two (the 25% dispersible oil-suspending agent of amidosulfuron pyroxsulam)
Active compound, solvent, emulsifying agent in above-mentioned formula are dissolved into homogeneous oil phase；Under high velocity agitation, it is mixed to prepare 25%
The dispersible oil-suspending agent of amidosulfuron pyroxsulam.
Example of formulations three (25% amidosulfuron pyroxsulam suspending agent)
Above-mentioned formula is crushed in advance in proportion, adds in sand mill and grinds, system is allocated after high shear mixing
Obtain 25% amidosulfuron pyroxsulam suspending agent.
Example of formulations four (30% amidosulfuron pyroxsulam water dispersible granules)
By above-mentioned formula, the phonetic sulphur of 30% acyl is made in dry pulverization process, granulation, drying, screening in proportion
Grand pyroxsulam water-dispersible granules.
Field control effectiveness test embodiment one：To the field control effectiveness test reagent agent of winter wheat field annual grassy weeds and dispenser
Dosage：
(1) 20% amidosulfuron pyroxsulam wettable powder (pyroxsulam of 10% amidosulfuron 10%), mu is used
9 grams of preparation (1#).
(2) the 25% dispersible oil-suspending agents of amidosulfuron pyroxsulam (pyroxsulam of 10% amidosulfuron 15%),
Mu 6 grams of preparation (2#).
(3) 25% amidosulfuron pyroxsulam suspending agents (pyroxsulam of 15% amidosulfuron 10%), mu preparation 9
Gram (3#).
(4) 30% amidosulfuron pyroxsulam water dispersible granules (pyroxsulam of 10% amidosulfuron 20%), mu is used
4.5 grams of preparation (4#).
(5) 5% amidosulfuron water dispersible granules, mu 20 grams of preparation (5#).
(6) 7.5% pyroxsulam water dispersible granules, mu 12 grams of preparation (6#).
Dispenser period：The leaf phase of weeds 2~5, it is watered even spraying.
Control object：Bromegrass, amur foxtail, Descurainia sophia, Veronica, shepherd's purse.
Result of the test is shown in Table 3.As can be seen from the test results：19 days after medicine, Herbicidal combinations of the invention are to winter wheat
The average preventive effect of field annual grassy weeds reaches more than 87%.Herbicidal combinations of the present invention are killed significantly better than the single dose compareed, expansion
Grass spectrum, significantly, quick-acting and lasting period are substantially better than single dose for synergistic effect.
Table 3, preventing and treating winter wheat field annual grassy weeds field control effectiveness test result
。
Claims (4)
1. a kind of Herbicidal combinations containing amidosulfuron and pyroxsulam, it is characterised in that：Active ingredient be amidosulfuron and
The quality parts ratio of pyroxsulam, amidosulfuron and pyroxsulam in Herbicidal combinations is 1:1, amidosulfuron and pyroxsulam
Mass percent of the quality summation in Herbicidal combinations is 3%~94%.
2. a kind of Herbicidal combinations containing amidosulfuron and pyroxsulam according to claim 1, it is characterised in that：Institute
State also containing agriculturally allowing to use and acceptable insecticides adjuvant in Herbicidal combinations, to be processed into suitable pesticide agent
Type.
3. a kind of Herbicidal combinations containing amidosulfuron and pyroxsulam described in claim 1 or 2, it is characterised in that：Institute
The formulation for stating Herbicidal combinations is one kind in suspending agent, wettable powder, water dispersible granules.
4. a kind of Herbicidal combinations containing amidosulfuron and pyroxsulam described in claim 1 are preventing and kill off winter wheat field 1 year
Purposes in raw weeds.
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| CN104430449B true CN104430449B (en) | 2017-10-17 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002036595A2 (en) * | 2000-11-03 | 2002-05-10 | Dow Agrosciences Llc | N-(5,7-DIMETHOXY[1,2,4]TRIAZOLO[1,5-a]PYRIMIDIN-2-YL) ARYLSULFONAMIDE COMPOUNDS AND THEIR USE AS HERBICIDES |
| CN102326574A (en) * | 2011-07-11 | 2012-01-25 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and sulfonylurea |
| CN103249307A (en) * | 2010-10-12 | 2013-08-14 | 陶氏益农公司 | Growth inhibition of perennial forage grasses with pyroxsulam |
| CN103960267A (en) * | 2014-04-08 | 2014-08-06 | 广东中迅农科股份有限公司 | Herbicidecomposition containing thifensulfuron-methyl and pyroxsulam |
-
2014
- 2014-11-26 CN CN201410699309.4A patent/CN104430449B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002036595A2 (en) * | 2000-11-03 | 2002-05-10 | Dow Agrosciences Llc | N-(5,7-DIMETHOXY[1,2,4]TRIAZOLO[1,5-a]PYRIMIDIN-2-YL) ARYLSULFONAMIDE COMPOUNDS AND THEIR USE AS HERBICIDES |
| CN103249307A (en) * | 2010-10-12 | 2013-08-14 | 陶氏益农公司 | Growth inhibition of perennial forage grasses with pyroxsulam |
| CN102326574A (en) * | 2011-07-11 | 2012-01-25 | 陕西美邦农药有限公司 | Weeding composition containing florasulam and sulfonylurea |
| CN103960267A (en) * | 2014-04-08 | 2014-08-06 | 广东中迅农科股份有限公司 | Herbicidecomposition containing thifensulfuron-methyl and pyroxsulam |
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