CN104186483A - Weeding composition containing carfentrazone-ethyl and bispyribac-sodium - Google Patents
Weeding composition containing carfentrazone-ethyl and bispyribac-sodium Download PDFInfo
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- CN104186483A CN104186483A CN201410392768.8A CN201410392768A CN104186483A CN 104186483 A CN104186483 A CN 104186483A CN 201410392768 A CN201410392768 A CN 201410392768A CN 104186483 A CN104186483 A CN 104186483A
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- azoles humulone
- weeding composition
- bispyribac
- ethyl
- sodium
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Abstract
The invention discloses a weeding composition containing carfentrazone-ethyl and bispyribac-sodium. The weeding composition comprises a pesticide adjuvant, carfentrazone-ethyl and bispyribac-sodium, wherein a ratio of the weight part of carfentrazone-ethyl to the weight part of bispyribac-sodium is (1:20)-(20:1); and the total weight percent of carfentrazone-ethyl and bispyribac-sodium is 1-60 percent in the weeding composition. The weeding composition is applicable to preventing and removing annual weeds in rice fields, in aspect of the prevention and treatment effects, the weeding composition has a remarkable synergetic or additive effect when being compared with weedicides with single purpose, the use amount of pesticide is reduced, the pesticide cost is lowered, the service life of the weeding composition is prolonged, and the adverse influence of pesticide on the ecological environment is alleviated.
Description
Technical field
The present invention relates to agricultural chemicals Herbicidal combinations and application thereof, specifically a kind ofly take the Herbicidal combinations that azoles humulone and two careless ether is active ingredient, be applied to prevent and kill off paddy 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, has caused a lot of weeds to produce pesticide resistance.Meanwhile, while occurring due to weeds, grass is complicated mutually, and the weeds such as grassy weed, broad leaved weed and sedge weed are mixed raw, and single variety weed killer herbicide is used can not effectively solve farmland weed, all can show defect and limitation in a certain respect.And variety classes weed killer herbicide is mixed, have herbicidal spectrum wide, promote preventive effect, delay the plurality of advantages such as weeds develop immunity to drugs, save time, saving of labor.
Azoles humulone is by suppressing protoporphyrin oxidase, thereby makes film division, on cereal crop, uses, and 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 paddy rice, wheat, corns, 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.
By the acid of root leaf absorption inhibition vinegar milk is synthetic, hindered aminoacid biosynthesis side chain is selective herbicide to two careless ether, rice transplanting Tanaka, uses, and remarkably productive to refractory grass such as above the average age for marriage barnyard grass, horse amaranths in age, herbicidal spectrum is wide.
By different pesticide species compounded formulas, screening, select outstanding formula and can effectively improve the actual control efficiency to disease, worm, crop smothering, 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 compounded formula screening of azoles humulone and two careless ethers, finds that azoles humulone and two careless ether carry out composite, in certain compound proportion scope, paddy field annual weed is had to synergistic effect, after further study, has completed the present invention.
Summary of the invention
The technical problem solving: 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 good, and the lasting period is long, be conducive to the Herbicidal combinations of the farmland weed comprehensive regulation.
Another object of invention is to provide this Herbicidal combinations for preventing and kill off farmland weed, is particularly useful for preventing and kill off paddy field annual weed.
Technical scheme of the present invention is: for achieving the above object, the invention provides a kind of Herbicidal combinations, by active ingredient azoles humulone and two careless ethers and suitable insecticides adjuvant, formed, azoles humulone is 1:20-20:1 with the ratio of weight and number of two careless ethers, azoles humulone is 1-60% with the percentage by weight of two careless ether weight summations in Herbicidal combinations, and all the other are in agricultural chemicals, to allow to use and acceptable insecticides adjuvant.
Described composition pesticide can, according to well known to a person skilled in the art method, be mixed with the application forms of the applicable agricultural uses such as oil-suspending agent, suspending agent, wetting powder or water dispersible granules.
Described composition pesticide also contains the required auxiliary agent of preparation pesticidal preparations, comprise one or more the mixing in solvent, emulsifier, wetting agent, stabilizing agent, dispersant, thickener, defoamer, antifreezing agent, disintegrant, binding agent, filler, filler, deionized water etc., be known substance, various auxiliary agents conventional in pesticidal preparations, according to different situations, can change to some extent, be not particularly limited.
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 the method for spraying to use conventionally, also can adopt as required other operation techniques of the upper application of agricultural.
Composition pesticide provided by the invention, for preventing and kill off paddy field annual weed, should notice that in when application, to the shooting stage, paddy field annual weed 5 leaves were used before the phase after rice seedlings.
Technology origin of the present invention: the synergy being mixed to weeds for further understanding azoles humulone and two careless ether, the inventor is to azoles humulone and two composite formulation screening test that carried out of careless ether.
Test material: Monochoria vaginalis [Monochoria vaginalis] (field is collected seed and preserved); Barnyard grass [Echinochloa crusgalli (L.) Beaw Setaria] (field is collected seed and preserved).
Test apparatus: controlled illumination box; The accurate laboratory of POTTER spray tower; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method: the purity that first takes certain mass is that the former medicine of 95% azoles humulone, purity are 95% pair of former medicine of careless ether, add acetone fully to dissolve the Tween 80 aqueous solution dilution of rear use 0.1%, be mixed with respectively single dose mother liquor, according to the object that is mixed, serial proportioning is set, each proportioning arranges 5 concentration gradients.According to single dose herbicide spectrum, select representative susceptible weeds seed, be cultured to 2 leaf 1 hearts standby.After selecting the weeds cauline leaf of numbering to process, be placed in illumination box incubated at room temperature 20 days, calculate control efficiency (fresh weight), then with method of least squares calculate suppress in concentration EC
50, then calculate co-toxicity coefficient (CTC) by the abundant method of Sun Yun.
Co-toxicity coefficient (CTC) >=120 shows as synergistic effect; Co-toxicity coefficient (CTC)≤80 shows as antagonism; 80 < co-toxicity coefficient (CTC) < 120 show as summation action.
Actual measurement toxicity index (ATI)=(standard medicament EC
50/ reagent agent EC
50) * 100.
Theoretical toxicity index (TTI)=(percentage composition of A in toxicity index * mixture of A)+(percentage composition of B in toxicity index * mixture of B).
Co-toxicity coefficient (CTC)=[the theoretical toxicity index (TTI) of mixture actual measurement toxicity index (ATI)/mixture] * 100.
Measurement result show (in Table 1 and table 2), azoles humulone is with two careless ether in the scope of mixed ratio 1～20:1～20, co-toxicity coefficient (CTC), all more than 120, shows that azoles humulone is mixed Monochoria vaginalis and barnyard grass are all had to synergistic effect with two careless ether.
Table 1, different proportioning azoles humulone and the synergy measurement result of two careless ether to Monochoria vaginalis.
Table 2, different proportioning azoles humulone are measured the synergy of barnyard grass with two careless ether.
Composition pesticide provided by the invention has following beneficial effect:
1, Herbicidal combinations provided by the invention, in certain ratio range, show obvious synergistic effect, the control efficiency of composition is significantly improved than single dose, has reduced the using dosage of agricultural chemicals, reduce drug cost, reduced the adverse effect of agricultural chemicals to ecotope.
2, Herbicidal combinations provided by the invention, the combination of two kinds of active ingredients, has expanded herbicidal spectrum, and two kinds of active ingredient mechanism of action are different simultaneously, can overcome the shortcoming that single use easily produces resistance, extend the service life of medicament.
3, Herbicidal combinations provided by the invention is conducive to delay the drug-fast generation of paddy field annual weed, the comprehensive regulation important in inhibiting to rice weed resistance.
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.
Mono-: 20% two careless ether suspending agent of azoles humulone of preparation method embodiment.
Above-mentioned formula is pulverized in proportion in advance, then added in sand mill and grind, after high speed shear is mixed, allotment makes the two careless ether suspending agents of 20% azoles humulone.
Bis-: 25% two careless ether oil suspending agents of azoles humulone of preparation method embodiment.
Above-mentioned material is pulverized in proportion in advance, then added in sand mill and grind, after high speed shear is mixed, allotment makes the two careless ether oil suspending agents of 25% azoles humulone.
Tri-: 30% two careless ether wetting powders of azoles humulone of preparation method embodiment.
Above-mentioned formula is entered in blender after coarse crushing and mixed in proportion, then after air-flow crushing, make the two careless ether wetting powders of 30% azoles humulone.
Preparation method executes four: 40% two careless ether water-dispersible granules of azoles humulone of example.
By above-mentioned formula, dry pulverization process, granulation, dry, screening make 40% azoles humulone pair careless ether water-dispersible granules in proportion.
Field control effectiveness test embodiment mono-: prevent and kill off the transplanted rice field annual weed test of pesticide effectiveness.
Test selects grassy weed and the more transplanted rice field of broad leaved weed to carry out, and 7 processing are established in test altogether, and 3 repetitions are established in every processing, 20 days afterwards statistics respectively process number of weeds amount and calculate preventive effect, result of the test is in Table 3.
Chemicals treatment: the two careless ether suspending agents (1#) of 20% azoles humulone, the two careless ether oil suspending agents (2#) of 25% azoles humulone, the two careless ether wetting powders (3#) of 30% azoles humulone, the two careless ether water-dispersible granules (4#) of 40% azoles humulone.
Control treatment: 10% azoles humulone wetting powder (1#), 10% pair of careless ether suspending agent (2#), artificial weeding (3#), blank (not weeding of not dispenser).
Table 3, prevent and kill off transplanted rice field annual weed field control effectiveness test application form (after medicine 20 days).
Remarks: strain preventive effect=(check plot weeds strain number-treatment region weeds strain number)/check plot weeds strain counts * 100%.
As can be seen from Table 3, after medicine, 20 days azoles humulones are 94.88%, 95.22%, 96.93%, 93.93% with the two careless ether suspending agents of two careless ether composition 20% azoles humulones, the two careless ether oil suspending agents of 25% azoles humulone, the two careless ether wetting powders of 30% azoles humulone, 40% azoles humulone pair careless ether water-dispersible granules preventive effects, obviously be better than 10% azoles humulone wetting powder, 10% pair of careless ether suspending agent, in pilot survey process, do not find that said composition produces poisoning to paddy rice simultaneously.
Claims (4)
1. a Herbicidal combinations that contains azoles humulone and two careless ethers, active ingredient is azoles humulone and two careless ether, it is characterized in that: azoles humulone is 1:20-20:1 with the ratio of weight and number of two careless ethers, azoles humulone is 1-60% with the percentage by weight of two careless ether weight summations in Herbicidal combinations.
2. a kind of Herbicidal combinations that contains azoles humulone and two careless ethers according to claim 1, is characterized in that: in described Herbicidal combinations, also contain the upper insecticides adjuvant that uses of allowing of agricultural, to be processed into suitable formulation.
3. a kind of Herbicidal combinations that contains azoles humulone and two careless ethers according to claim 1, is characterized in that: its formulation is a kind of in oil-suspending agent, suspending agent, wetting powder or dosage form of water dispersible granule.
4. a kind of Herbicidal combinations that contains azoles humulone and two careless ethers according to claim 1, is characterized in that: for preventing and kill off paddy field annual weed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392768.8A CN104186483A (en) | 2014-08-11 | 2014-08-11 | Weeding composition containing carfentrazone-ethyl and bispyribac-sodium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392768.8A CN104186483A (en) | 2014-08-11 | 2014-08-11 | Weeding composition containing carfentrazone-ethyl and bispyribac-sodium |
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| CN104186483A true CN104186483A (en) | 2014-12-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104542615A (en) * | 2015-02-11 | 2015-04-29 | 四川国光农化股份有限公司 | Composition and preparation for preventing and eliminating garden cuscuta plants and applications of composition and preparation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247703A (en) * | 1998-07-08 | 2000-03-22 | 罗纳-普朗克农业公司 | Novel herbicide composition |
| WO2001024633A2 (en) * | 1999-10-06 | 2001-04-12 | Bayer Aktiengesellschaft | Selective herbicides based on pyrimidine-derivatives |
| CN102067842A (en) * | 2011-01-26 | 2011-05-25 | 江苏省农用激素工程技术研究中心有限公司 | Herbicide composition in paddy field |
-
2014
- 2014-08-11 CN CN201410392768.8A patent/CN104186483A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1247703A (en) * | 1998-07-08 | 2000-03-22 | 罗纳-普朗克农业公司 | Novel herbicide composition |
| WO2001024633A2 (en) * | 1999-10-06 | 2001-04-12 | Bayer Aktiengesellschaft | Selective herbicides based on pyrimidine-derivatives |
| CN102067842A (en) * | 2011-01-26 | 2011-05-25 | 江苏省农用激素工程技术研究中心有限公司 | Herbicide composition in paddy field |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104542615A (en) * | 2015-02-11 | 2015-04-29 | 四川国光农化股份有限公司 | Composition and preparation for preventing and eliminating garden cuscuta plants and applications of composition and preparation |
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