CN104839186A - Herbicidal composition containing metazosulfuron and oxadiargyl - Google Patents
Herbicidal composition containing metazosulfuron and oxadiargyl Download PDFInfo
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- CN104839186A CN104839186A CN201510189231.6A CN201510189231A CN104839186A CN 104839186 A CN104839186 A CN 104839186A CN 201510189231 A CN201510189231 A CN 201510189231A CN 104839186 A CN104839186 A CN 104839186A
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- China
- Prior art keywords
- evil humulone
- piperazine pyrazosulfuron
- bing que
- que evil
- herbicidal combinations
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Abstract
The invention discloses an herbicidal composition containing metazosulfuron and oxadiargyl. Mass ratio of metazosulfuron to oxadiargyl is 20:1-1:30. The pesticide composition is suitable for rice transplanting or seedling broadcasting and is used for controlling annual weeds. It is appropriate to use the herbicidal composition by a soil-mixing broadcasting and bottle-throwing method. After compounding of metazosulfuron and oxadiargyl, the herbicidal composition has an obvious synergistic effect, and dosage of the active ingredients of the compound drug is obviously reduced in comparison with dosage of a single ingredient.
Description
Technical field
The Herbicidal combinations that the present invention relates to, be with piperazine pyrazosulfuron and Bing Que Evil humulone for active ingredient, for preventing and treating farmland weed, be particularly useful for preventing and kill off rice seedling throwing field or transplant field annual weed etc.
Background technology
Chemical method weeding is agriculturally one of Main Means controlling weeds.In recent years, because some weed killer herbicide kind large area are used alone, a lot of weeds have been caused to develop immunity to drugs.Simultaneously, grass when weeds occur is mutually complicated, not only annual and perennial weed is mixed raw, draft, liana and shrub have concurrently, and weeds emerge uneven, seed, low age, the staggered generation of weeds at advanced age, so when weed killer herbicide kind is used alone, defect in a certain respect and limitation all can be shown.
Piperazine pyrazosulfuron, for belonging to sulfonylurea herbicide, is selectivity inner-adsorption conduction-type herbicide, is absorbed mainly through root system, and shift rapidly in weeds plant body, Developing restraint, weeds are dead gradually.Paddy rice can decompose this medicament, does not almost affect paddy growth.Efficacy stability, safety is high, lasting period 25-35 days.Annual and perennial broadleaf weed and sedge weed can be prevented and kill off, as different in nature nutgrass flatsedge, Herba Cyperi Glomerati, firefly Lin, Monochoria vaginalis, Chinese celery, mexicana, angustifolia arrowhead herb, pondweed, blue or green duckweed, Eclipta prostrata, invalid to barnyard grass, moleplant seed.
Bing Que Evil humulone effectively can prevent and kill off annual gramineous weed and most of broad leaved weed such as barnyard grass in paddy field, speed of action is fast, herbicidal effect is good, mixedly with the sulfonylurea such as bensulfuron-methyl, pyrazosulfuron herbicide for paddy field expands herbicide and composes, and improves its safety to paddy rice.
When piperazine pyrazosulfuron and the single use of the third alkynes Evil humulone, all there are certain defect and limitation.
The mixture of the present inventor to piperazine pyrazosulfuron and Bing Que Evil humulone conducts in-depth research, on the basis of a large amount of formula indoor screening tests and field medicine effect test, find that piperazine pyrazosulfuron and Bing Que Evil humulone carry out mixture, within the scope of certain mixed ratio, obvious synergistic effect is shown to paddy field weed, after further study, the present invention is completed.
Mixture and the application of piperazine pyrazosulfuron and Bing Que Evil humulone there is no report at present.
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 are good and the lasting period is long, are conducive to the composition pesticide of the farmland weed comprehensive regulation.
Another object of the present invention is to provide and is used for preventing and kill off farmland weed by this composition pesticide, is particularly useful for preventing and kill off arid rice nursery annual weed etc.
Technical solution of the present invention: with piperazine pyrazosulfuron and Bing Que Evil humulone for active ingredient, the ratio of quality and the number of copies of piperazine pyrazosulfuron and Bing Que Evil humulone is 20:1 ~ 1:30, all the other are allow in agricultural chemicals to use and acceptable auxiliary element.
Herbicidal combinations of the present invention is prepared into any one formulation being applicable to agriculturally using by known method, reasonable formulation is the one in wetting powder, microemulsion, aqueous emulsion, suspending agent, oil-suspending agent or dosage form of water dispersible granule, and in preparation, active ingredient total content is 1.0% ~ 80%.
The auxiliary agent used in the present composition comprise solvent, dispersant, stabilizing agent, emulsifier, antifreezing agent, thickener etc. and other to be of value to active ingredient stable and play the known substance of drug effect in the formulation, all various compositions that are conventional in pesticidal preparations or permission use, be not particularly limited, concrete composition and consumption are determined by simple test according to recipe requirements.
Product described in the invention can the form of finished product preparation provide, and namely in composition, each material mixes, and the composition of composition also can the form of single dose provide, and directly mixes in tank or bucket, be then diluted to required concentration before using.The frequency of administration of the present composition and amount of application change with weather condition and crop condition change, can by the object using suitable formulation to reach control.
The present composition is applicable to prevent and treat annual weed, especially arid rice nursery annual weed.
Compared with prior art, beneficial effect of the present invention is, composite have obvious synergistic effect, improves control efficiency; Expand control spectrum; Two kinds of active ingredients are composite, reduce Pesticide use amount, thus reduce cost and decrease the pollution to environment.
Embodiment
In order to make object of the present invention, technical scheme and advantage more short and sweet, the following specific embodiment of the present invention is described, but the present invention is only limitted 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 done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Embodiment 1: indoor biometrics is tested.
Test material:
Chickweed, barnyard grass (field collection Seed storage).
Test apparatus:
Controlled illumination box; The accurate laboratory spray tower of POTTER; Electronic balance (sensibility reciprocal 0.1mg); Micropipette rifle etc.
Test method:
First take the former medicine of 96% piperazine pyrazosulfuron of certain mass, the former medicine of 95% Bing Que Evil humulone, adds the Tween 80 aqueous solution dilution that acetone fully dissolves rear use 0.1%, is mixed with single dose mother liquor respectively, arrange serial proportioning according to mixture object, each proportioning arranges 5 ~ 7 concentration gradients.Select representative susceptible weeds seed for subsequent use according to single dose herbicide spectrum.After carrying out soil treatment by selecting the process of numbering, to be placed in illumination box incubated at room temperature 10 days, to calculate control efficiency (fresh weight), then with method of least squares calculate suppress in dense EC
50(95% confidence limit), 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 agent EC
50/ reagent agent EC
50) × 100.
Theoretical toxicity index (the TTI)=percentage composition of A (in the toxicity index × mixture of the A)+percentage composition of B (in the 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 shows, piperazine pyrazosulfuron and Bing Que Evil humulone are between proportioning 20:1 ~ 1:30, and have obvious synergistic effect, co-toxicity coefficient is more than 120.
Table 1, different ratio piperazine pyrazosulfuron and Bing Que Evil humulone are to the synergy measurement result of barnyard grass
| Process | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Piperazine pyrazosulfuron | 0.6235 | 100 | - | - |
| Bing Que Evil humulone | 8.8652 | 7.03 | - | - |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (20:1) | 0.52 | 119.90 | 95.57 | 125.46 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (10:1) | 0.53 | 117.64 | 91.55 | 128.50 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (4:1) | 0.62 | 100.56 | 81.41 | 123.53 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (2:1) | 0.71 | 87.82 | 69.01 | 127.25 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:1) | 0.96 | 64.95 | 53.52 | 121.36 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:2) | 1.26 | 49.48 | 38.02 | 130.15 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:10) | 2.88 | 21.65 | 15.48 | 139.81 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:20) | 3.64 | 17.13 | 11.46 | 149.47 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:30) | 4.83 | 12.91 | 10.03 | 128.68 |
Table 2, different ratio piperazine pyrazosulfuron and Bing Que Evil humulone are to the synergy measurement result of chickweed
| Process | EC 50(μg/ml) | ATI | TTI | Co-toxicity coefficient (CTC) |
| Piperazine pyrazosulfuron | 0.5644 | 100 | - | - |
| Bing Que Evil humulone | 3.8522 | 14.65 | - | - |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (20:1) | 0.43 | 131.26 | 95.94 | 136.82 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (10:1) | 0.49 | 115.18 | 92.24 | 124.87 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (4:1) | 0.56 | 100.79 | 82.93 | 121.53 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (2:1) | 0.65 | 86.83 | 71.55 | 121.36 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:1) | 0.79 | 71.44 | 57.33 | 124.63 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:2) | 0.91 | 62.02 | 43.10 | 143.90 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:10) | 1.87 | 30.18 | 22.41 | 134.68 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:20) | 2.43 | 23.23 | 18.72 | 124.10 |
| Piperazine pyrazosulfuron: Bing Que Evil humulone (1:30) | 2.55 | 22.13 | 17.40 | 127.17 |
Embodiment 2:18% piperazine pyrazosulfuron Bing Que Evil humulone wetting powder.
Mix entering in blender after above-mentioned formula in proportion coarse crushing, more namely obtain 18% piperazine pyrazosulfuron third alkynes Evil humulone wetting powder after air-flow crushing.
This embodiment is used for preventing and kill off transplanted rice field annual weed, 18% piperazine pyrazosulfuron Bing Que Evil humulone wetting powder consumption 135g.a.i./ha Seal treatment, and after medicine, 10 days preventive effects are 97.6%; 3% piperazine pyrazosulfuron wetting powder consumption 30g.a.i./ha soil treatment, after medicine, 10 days preventive effects are 73.6%; 15% Bing Que Evil humulone missible oil consumption 105g.a.i./ha soil treatment, after medicine 10 days 68.1%.Obviously, 18% piperazine pyrazosulfuron Bing Que Evil humulone wetting powder is prevented and kill off arid rice nursery annual weed drug effect and is obviously better than 3% piperazine pyrazosulfuron wetting powder and 15% Bing Que Evil humulone missible oil for piperazine pyrazosulfuron and the composite rear synergy of Bing Que Evil humulone.Because pharmacy control efficacy improves, compound drug effective ingredient consumption reduces, and reduces drug cost, delays the generation of disease drug resistance, decrease environmental pollution.
Embodiment 3:24% piperazine pyrazosulfuron Bing Que Evil humulone suspending agent.
Above-mentioned formula is pulverized in proportion in advance, then adds in sand mill and grind, the obtained 24% piperazine pyrazosulfuron Bing Que Evil humulone suspending agent of allotment after high shear mixing.
This embodiment is used for preventing and kill off arid rice nursery annual weed, 24% piperazine pyrazosulfuron Bing Que Evil humulone suspension emulsion consumption 108g.a.i./ha Seal treatment, and after medicine, 10 days preventive effects are 97.8%; 5% piperazine pyrazosulfuron wetting powder consumption 30g.a.i./ha soil treatment, after medicine, 10 days preventive effects are 68.5%; 15% Bing Que Evil humulone missible oil consumption 105g.a.i./ha soil treatment, after medicine 10 days 69.7%.Obviously, 24% piperazine pyrazosulfuron Bing Que Evil humulone suspending agent is prevented and kill off arid rice nursery annual weed drug effect and is obviously better than 5% piperazine pyrazosulfuron suspending agent and 15% Bing Que Evil humulone missible oil for piperazine pyrazosulfuron and the composite rear synergy of Bing Que Evil humulone acid.Because pharmacy control efficacy improves, compound drug effective ingredient consumption reduces, and expands herbicide spectrum, reduces drug cost, delay the generation of disease drug resistance, decrease environmental pollution.
Embodiment 4:40% piperazine pyrazosulfuron Bing Que Evil humulone water dispersible granules.
By above-mentioned formula dry pulverization process, granulation, drying, the obtained 40% piperazine pyrazosulfuron Bing Que Evil humulone water-dispersible granules of screening preparation in proportion.
This embodiment is used for preventing and kill off rice seedling throwing field annual weed, 40% piperazine pyrazosulfuron Bing Que Evil humulone water dispersible granules consumption 120g.a.i./ha soil treatment, and after medicine, 10 days preventive effects are 96.8%; 5% piperazine pyrazosulfuron wetting powder consumption 30g.a.i./ha soil treatment, after medicine, 10 days preventive effects are 68.3%; 15% Bing Que Evil humulone missible oil consumption 105g.a.i./ha soil treatment, after medicine 10 days 77.3%.Obviously, 40% piperazine pyrazosulfuron Bing Que Evil humulone water-dispersible granules is prevented and kill off rice seedling throwing field annual weed drug effect and is obviously better than 5% piperazine pyrazosulfuron wetting powder and 15% Bing Que Evil humulone missible oil for piperazine pyrazosulfuron and the composite rear synergy of Bing Que Evil humulone.Because pharmacy control efficacy improves, compound drug effective ingredient consumption reduces, and expands herbicide spectrum, reduces drug cost, delay the generation of disease drug resistance, decrease environmental pollution.
Claims (6)
1. contain a Herbicidal combinations for piperazine pyrazosulfuron and the third alkynes Evil humulone, it is characterized in that: active ingredient is piperazine pyrazosulfuron and the third alkynes Evil humulone.
2. a kind of Herbicidal combinations containing piperazine pyrazosulfuron and Bing Que Evil humulone according to claim 1, is characterized in that: the mass ratio of piperazine pyrazosulfuron and Bing Que Evil humulone is 20:1 ~ 1:30.
3. a kind of Herbicidal combinations containing piperazine pyrazosulfuron and Bing Que Evil humulone according to claim 1 and 2, is characterized in that: piperazine pyrazosulfuron and the gross mass mark percentage composition of Bing Que Evil humulone in Herbicidal combinations are 1.0 ~ 80%.
4. a kind of Herbicidal combinations containing piperazine pyrazosulfuron and Bing Que Evil humulone according to claim 1 and 2, it is characterized in that: also containing pesticidal preparations auxiliary element in described Herbicidal combinations, so that herbicidal composition makes the formulation being applicable to agriculturally using.
5. a kind of Herbicidal combinations containing piperazine pyrazosulfuron and Bing Que Evil humulone according to claim 4, is characterized in that: its formulation is the one in oil-suspending agent, microemulsion, aqueous emulsion, suspending agent, wetting powder or dosage form of water dispersible granule.
6. a kind of Herbicidal combinations containing piperazine pyrazosulfuron and the third alkynes Evil humulone is preventing and treating the application in paddy rice seedling throwing field or transplant field annual weed according to claim 1.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510189231.6A CN104839186A (en) | 2015-04-18 | 2015-04-18 | Herbicidal composition containing metazosulfuron and oxadiargyl |
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|---|---|---|---|
| CN201510189231.6A CN104839186A (en) | 2015-04-18 | 2015-04-18 | Herbicidal composition containing metazosulfuron and oxadiargyl |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008273949A (en) * | 2007-03-30 | 2008-11-13 | Nissan Chem Ind Ltd | Herbicide composition |
| JP2012180341A (en) * | 2011-02-07 | 2012-09-20 | Mitsui Chemicals Agro Inc | Control method for rice false smut disease of rice plant |
| CN103369963A (en) * | 2011-02-11 | 2013-10-23 | 巴斯夫欧洲公司 | Herbicidal compositions comprising topramezone and pinoxaden |
-
2015
- 2015-04-18 CN CN201510189231.6A patent/CN104839186A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008273949A (en) * | 2007-03-30 | 2008-11-13 | Nissan Chem Ind Ltd | Herbicide composition |
| JP2012180341A (en) * | 2011-02-07 | 2012-09-20 | Mitsui Chemicals Agro Inc | Control method for rice false smut disease of rice plant |
| CN103369963A (en) * | 2011-02-11 | 2013-10-23 | 巴斯夫欧洲公司 | Herbicidal compositions comprising topramezone and pinoxaden |
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Application publication date: 20150819 |