CN109588416B - Herbicidal composition containing topramezone and diuron and application thereof - Google Patents
Herbicidal composition containing topramezone and diuron and application thereof Download PDFInfo
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- CN109588416B CN109588416B CN201910073631.9A CN201910073631A CN109588416B CN 109588416 B CN109588416 B CN 109588416B CN 201910073631 A CN201910073631 A CN 201910073631A CN 109588416 B CN109588416 B CN 109588416B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/30—Derivatives containing the group >N—CO—N aryl or >N—CS—N—aryl
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/72—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms
- A01N43/80—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with nitrogen atoms and oxygen or sulfur atoms as ring hetero atoms five-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,2
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- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention belongs to the field of pesticides, and particularly relates to a herbicidal composition containing sulfuryl pyraflufen-ethyl and diuron, wherein the active ingredients of the herbicidal composition comprise a component A and a component B; the component A is the sulfone pyraflufen-ethyl and the component B is the diuron; the weight ratio of the component A to the component B is 1: 2-6; can be used for preventing and removing weeds in the sugarcane field.
Description
Technical Field
The invention belongs to the field of pesticides, and particularly relates to a herbicidal composition containing pyraflufen-ethyl and diuron and application thereof.
Background
Sugarcane is a main sugar crop in China, and accounts for more than 85% of the perennial planting area of sugar in China, and the sugar yield accounts for more than 90% of the total sugar yield. Wherein the sugarcane planting areas of the Guangxi, Yunnan and Guangdong large production areas in 2014-2015 are respectively 98.4 ten thousand hm2, 34.8 ten thousand hm2 and 1.5 ten thousand hm2, and the sugarcane production becomes an important support for economic development of the main production area and a main source for increasing income of farmers. However, in the process of sugarcane growth, weeds are extremely harmful to the sugarcane, particularly, before the sugarcane is closed in spring and summer, the sugarcane field is exposed for a long time, the weeds grow rapidly, the production cost of weeding is increased, the weed control work cannot be carried out in time, the weeds and the sugarcane compete for moisture, nutrients and sunlight, diseases and insects are aggravated, the normal growth and development of the sugarcane are inhibited, the sugarcane yield is reduced, and the main factor for restricting the sugarcane production is formed.
At present, sugarcane herbicide products which are registered nationwide together account for 75 percent of single-dose products, the balance of the sugarcane herbicide products are mixed-dose products, the dosage forms are wettable powder, wherein the single-dose products and mixed-dose preparations containing ametryn account for 35 percent of the registered number of the whole sugarcane herbicide, the single-dose products and mixed-dose preparations containing diuron account for 29 percent of the registered number of the whole sugarcane herbicide, and the single-dose products and mixed-dose preparations containing 2-methyl-4-chloro-atrazine account for 19 percent and 16 percent respectively.
At present, herbicide drug varieties and dosage forms for chemically preventing and removing weeds in sugarcane fields are seriously aged, vast sugarcane farmers use the same herbicide for weeding for a long time, the dosage of the sugarcane herbicide is increased very quickly due to year-by-year increase of the resistance of the weeds, and meanwhile, the quantity of the residual herbicide in soil and crops is increased continuously.
Disclosure of Invention
The invention aims to provide a herbicide composition which has reasonable components, low application cost and difficult drug resistance generation, and has positive effects on the aspects of retarding weed resistance, reducing the dosage of drugs and the like.
The present invention provides the following technical solutions
The herbicidal composition containing the topramezone and the diuron comprises active ingredients of a component A and a component B; the component A is the sulfone pyraflufen-ethyl and the component B is the diuron; the weight ratio of the component A to the component B is 1: 2-6.
The weeding composition containing the sulfone pyraflufen-ethyl and the diuron is characterized in that: the weight ratio of the component A to the component B is 1: 2-4.
The weeding composition containing the sulfone pyraflufen-ethyl and the diuron is characterized in that: the weight ratio of the component A to the component B is 1:2, 1:3 and 1: 4.
The weeding composition containing the sulfone pyraflufen-ethyl and the diuron is characterized in that: the total weight percentage of the active ingredients in the composition is 1-75%.
The weeding composition containing the sulfone pyraflufen-ethyl and the diuron is characterized in that: the total weight percentage of the active ingredients in the composition is 15-60%.
The composition can be combined with agriculturally acceptable additives to prepare an adaptive dosage form, and dosage forms such as wettable powder, missible oil, suspending agent, water dispersible granules and the like are preferably selected. The auxiliary agent comprises an emulsifier, a dispersant, a wetting agent, a binder, a disintegrating agent, a thickening agent, a stabilizer, an antifreezing agent, a defoaming agent filler and the like.
The herbicidal composition containing the topramezone and the diuron is used for preventing and removing weeds in a sugarcane field. Preferably, the weeds are gramineous weeds and broadleaf weeds. The weeds comprise barnyard grass, large crabgrass, goosegrass herb, cyperus rotundus, chenopodium album, ageratum conyzoides, calystegia chinensis, Japanese chiffon herb and the like.
The invention has the following beneficial technical effects:
the composition can effectively reduce the drug resistance of weeds and expand the weed control spectrum, and in addition, the weeding composition has a remarkable synergistic effect, can effectively reduce the using dosage of active ingredients and reduce the environmental pollution.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in conjunction with examples, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Example 1: and (3) measuring indoor toxicity of the herbicidal composition containing the topramezone and the diuron.
The test method comprises the following steps: selecting uniform and consistent weed crabgrass seeds, and accelerating germination in a biochemical incubator until the seeds are exposed to the white. Loading the dried and crushed sugarcane field soil into plastic pots, respectively and uniformly scattering weed seeds on the soil surface, covering with fine soil of about 0.5 cm, conventionally culturing in a greenhouse, performing final singling at the l-2 leaf stage of weeds, keeping 25 seedlings with relatively consistent growth size and density in each pot, and performing medicament spraying treatment at the 5-6 leaf stage of digitaria sanguinalis. Referring to the "indoor bioassay test guidelines for pesticides" (ministry of agriculture of the people's republic of china, 2007), a certain amount of herbicide is weighed or measured, a series of concentrations are prepared according to the amount of sprayed liquid, uniform stem and leaf spraying is carried out by using a quantitative sprayer, the treatment is repeated for 4 times, clear water treatment is used as a Control (CK), and the obtained product is treated and then placed in a greenhouse for conventional culture. And (3) measuring the fresh weight of the overground part of each treated plant of the weed after the herbicide is applied, calculating the fresh weight inhibition rate, establishing a regression equation (y = a + bx) by using the inhibition rate probability value (y) and the concentration logarithm value (x), solving the inhibition median (ID50) of different herbicides on the crab, and calculating the cotoxicity coefficient (CTC) according to the Sun Yunpei method. When CTC is less than 80, the composition is antagonistic, when CTC is less than 80, the composition is additive, and when CTC is less than 120, the composition is synergistic. Fresh weight inhibition (%) = (control aerial fresh weight-treated aerial fresh weight)/control aerial fresh weight x 100.
Table 1: indoor toxicity determination method of topramezone and diuron weeding composition on crab grass
| Herbicidal agents | Regression equation (correlation coefficient) | ID50 (g/mu) | CTC |
| Sulfoxaden A | Y= 2.0719+3.1207x (r=0.9345) | 8.6753 | - |
| Diuron B | Y= -2.1587+4.9308x (r=0.9566) | 28.3031 | - |
| A:B=1:0.5 | Y= 1.3499+3.5842x (r=0.9710) | 10.4324 | 108.16 |
| A:B=1:1 | Y= 0.8516+3.8805x (r=0.9636) | 11.7230 | 113.28 |
| A:B=1:2 | Y= 2.4415+2.3682x (r=0.9150) | 12.0325 | 134.09 |
| A:B=1:4 | Y= 2.0931+2.5173x (r=0.9806) | 14.2813 | 136.44 |
| A:B=1:6 | Y= 1.9926+2.4392x (r=0.9833) | 17.0980 | 125.10 |
As can be seen from the table 1, the herbicidal composition containing the pyriftalid and the diuron has a synergistic effect on the large crabgrass within a specific mixture ratio range, and the preferable mixture ratio of the pyriftalid and the diuron is 1: 2-6; the particularly preferable proportion of the sulfone pyraflufen-ethyl and the diuron is 1: 2-4.
Example 2: the herbicidal composition containing the topramezone and the diuron has the effect of field weed control in the sugarcane field.
Test subjects: barnyard grass, crabgrass, cyperus rotundus, eleusine indica and the like in the sugarcane field.
Test agents:
agent 1: 50% wettable powder of pyraflufen-ethyl diuron (pyraflufen-ethyl =1: 4)
10% of pyraflufen-ethyl, 40% of diuron, 7% of wetting penetrant F, 5% of sodium lignosulfonate, 8% of white carbon black and the balance of diatomite to 100%.
Medicament 2: 30% sulfonepyrazoxazole diuron suspending agent (sulfonepyrazoxazole: diuron =1: 2)
10% of pyraflufen-ethyl, 20% of diuron, 8% of nonylphenol polyoxyethylene ether, 2% of methyl oleate, 6% of fatty alcohol polyoxyethylene ether, 1% of carboxymethyl cellulose, 1% of ethylene glycol, 2% of an organic silicon defoamer and the balance of water to 100%.
Agent 3: 40% sulfonepyrazoxazole diuron water dispersible granules (sulfonepyrazoxazole: diuron =1: 3)
10% of sulfonepyraflufen-ethyl, 30% of diuron, 4% of sodium lignosulfonate, 5% of polycarboxylate, 2% of sodium dodecyl sulfate, 3% of ammonium sulfate, 5% of polyvinyl alcohol, 3% of white carbon black and the balance of kaolin to 100%.
The test method comprises the following steps: spraying the medicine water specified by each cell by using a sprayer, so that the medicine liquid covers the ground surface of the cell completely and uniformly, surveying by adopting an absolute value method, taking 5 points per cell at 45 days after the medicine is applied, sampling randomly, surveying by 0.2m2, returning the collected weeds to the room, and weighing the weeds to obtain the fresh weight, wherein the control effect (%) = [ (fresh weight of weeds in a clear water control group-fresh weight of weeds in a treated group)/fresh weight of weeds in a clear water group ]. 100%.
TABLE 2 herbicidal composition containing xaflufen and diuron for weed control in the field
As can be seen from the table above, the compound application of the topramezone and the diuron has good control effect on weeds in a sugarcane field, can obviously reduce the application dosage of active ingredients, reduces environmental pollution, and is safe to sugarcane crops in field observation.
The above description is only a preferred embodiment of the present invention, and it is obvious to those skilled in the art that modifications may be made without departing from the scope of the present invention, and such modifications are also within the scope of the present invention.
Claims (6)
1. The application of the weeding composition for preventing and killing weeds in a sugarcane field is characterized in that: the active ingredients consist of a component A and a component B; the component A is the sulfone pyraflufen-ethyl and the component B is the diuron; the weight ratio of the component A to the component B is 1: 2-6; the weeds are large crabgrass.
2. Use according to claim 1, characterized in that: the weight ratio of the component A to the component B is 1: 2-4.
3. Use according to claim 1, characterized in that: the weight ratio of the component A to the component B is 1:2, 1:3 and 1: 4.
4. Use according to any one of claims 1 to 3, characterized in that: the total weight percentage of the active ingredients in the composition is 1-75%.
5. Use according to claim 4, characterized in that: the total weight percentage of the active ingredients in the composition is 15-60%.
6. Use according to claim 4, characterized in that: the formulation of the composition can be one of wettable powder, missible oil, suspending agent and water dispersible granules.
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| CN109588416B true CN109588416B (en) | 2020-11-06 |
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| CN112931523A (en) * | 2019-12-11 | 2021-06-11 | 北京颖泰嘉和生物科技股份有限公司 | Herbicide composition and application thereof |
| CN113367149A (en) * | 2021-06-09 | 2021-09-10 | 广西壮族自治区农业科学院 | Herbicidal composition of topramezone and ethoxysulfuron and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101977507A (en) * | 2008-03-20 | 2011-02-16 | 巴斯夫欧洲公司 | Herbicidal compositions comprising pyroxasulfone iv |
| CN102036563A (en) * | 2008-05-21 | 2011-04-27 | 巴斯夫欧洲公司 | Herbicidal composition comprising glyphosate, glufosinate or their salts |
| CN102065692A (en) * | 2008-03-10 | 2011-05-18 | 巴斯夫欧洲公司 | Herbicidal compositions comprising pyroxasulfone |
| CN103202308A (en) * | 2006-12-21 | 2013-07-17 | 组合化学工业株式会社 | Herbicide composition |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103202308A (en) * | 2006-12-21 | 2013-07-17 | 组合化学工业株式会社 | Herbicide composition |
| CN102065692A (en) * | 2008-03-10 | 2011-05-18 | 巴斯夫欧洲公司 | Herbicidal compositions comprising pyroxasulfone |
| CN101977507A (en) * | 2008-03-20 | 2011-02-16 | 巴斯夫欧洲公司 | Herbicidal compositions comprising pyroxasulfone iv |
| CN102036563A (en) * | 2008-05-21 | 2011-04-27 | 巴斯夫欧洲公司 | Herbicidal composition comprising glyphosate, glufosinate or their salts |
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