CN114946872B - Dispersible oil suspending agent containing nicosulfuron and terbuthylazine - Google Patents
Dispersible oil suspending agent containing nicosulfuron and terbuthylazine Download PDFInfo
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- CN114946872B CN114946872B CN202210443868.3A CN202210443868A CN114946872B CN 114946872 B CN114946872 B CN 114946872B CN 202210443868 A CN202210443868 A CN 202210443868A CN 114946872 B CN114946872 B CN 114946872B
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- terbuthylazine
- nicosulfuron
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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<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
-
- 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
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/66—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms
- A01N43/68—1,3,5-Triazines, not hydrogenated and not substituted at the ring nitrogen atoms with two or three nitrogen atoms directly attached to ring carbon atoms
- A01N43/70—Diamino—1,3,5—triazines with only one oxygen, sulfur or halogen atom or only one cyano, thiocyano (—SCN), cyanato (—OCN) or azido (—N3) group directly attached to a ring carbon atom
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a dispersible oil suspending agent containing nicosulfuron and terbuthylazine, which is characterized by comprising the following components in percentage by weight: 25-30% of nicosulfuron, 1-5% of terbuthylazine, 1-15% of dispersing agent, 5-20% of emulsifying agent, 0.5-5% of thickening agent and 100% of solvent; the dispersing agents are TERSPERSE2700 and atlax 4914; the emulsifying agent is agro-milk 600# and TW-80; the thickening agent is white carbon black 974 and bentonite; the solvent is as follows: methyl oleate. The dispersible oil suspending agent can be used for preventing and killing annual weeds in corn fields, and has excellent overall prevention effect.
Description
Technical Field
The invention relates to the technical field of pesticides, in particular to a dispersible oil suspending agent containing nicosulfuron and terbuthylazine.
Background
The pesticide raw material can be directly used except a few pesticide raw materials with high volatility and high solubility in water, and most pesticide raw materials must be processed into various dosage forms. The processed pesticide has certain shape, components and specification, and is called a pesticide preparation. The pesticide preparation is processed to ensure that the original pesticide reaches the highest stability, optimize the biological activity, enlarge the use mode and the application of the original pesticide, control the release speed of the original pesticide and reduce the toxicity of the pesticide. The dispersible oil suspending agent (OD) is a liquid preparation with an active ingredient stably suspended in a water-insoluble liquid, and is used after being diluted and blended by water. Becomes a hot spot for the development of pesticide dosage forms in recent 10 years.
The medium used for the dispersible oil suspending agent is mostly mineral oil or vegetable oil, and the dispersible oil suspending agent has the advantages of good adhesiveness and spreadability, strong rain wash resistance and the like because the dispersible oil suspending agent has good adhesiveness and spreadability and is easy to adhere to waxy or smooth leaves. In addition, the dispersible oil suspending agent has the advantages of small particle size, high suspension rate and good physical stability; the density of the pesticide dispersible oil suspending agent is high, and the packaging cost and the overall processing cost are far lower than those of emulsifiable concentrates, wettable powder and the like.
Nicosulfuron is a systemic herbicide and can be absorbed by the stems, leaves and roots of weeds and then transmitted in plants, so that sensitive plants are prevented from growth arrest, fading and gradual death of stems and leaves. Can prevent and remove annual and perennial grassy weeds and partial broadleaf weeds. The terbuthylazine is a systemic conduction herbicide, is mainly absorbed by roots to inhibit photosynthesis of plants, and is suitable for preventing and killing various weeds in crop fields such as corn, vineyard, citrus and the like, such as perennial ryegrass, chickweed germinated in autumn, chamomile, alopecuroide, crabgrass, green bristlegrass and the like; terbuthylazine has good quick-acting property on weeds.
A corn herbicide compounded by nicosulfuron and terbuthylazine is disclosed in patent application of institute of grain and oil crops in the national academy of agricultural and forestry sciences in Hebei province, and has good synergistic effect on corn field weeds when the weight ratio of nicosulfuron to terbuthylazine is 1:15-20. However, the patent only discloses that the composition can be prepared into wettable powder, water dispersible granules, dry suspending agents, oil suspending agents and the like; no report is disclosed about the dispersible oil suspending agent.
33% of the nicosum terbuthylazine dispersible oil suspension is respectively registered by pesticide registration network inquiry, namely, heilongjiang green non-source biotechnology company (PD 20212161), heilongjiang double-surplus biotechnology company (PD 20212154) and Hebei Rongwei biological medicine industry limited company (PD 20183089). The Jilin Jiuze pesticide Limited company of the company and Jilin Jiuqiu pesticide Limited company of the parent company respectively register 30% of nicosulfan and terbuthylazine dispersible oil suspending agent and 33% of nicosulfan and terbuthylazine dispersible oil suspending agent (PD 20183099 and PD 20211641), the proportion of active ingredients in the two registered products is different, and the selection of auxiliary materials is similar.
The nicosulfuron and the terbuthylazine are conventional agents for preventing and controlling corn field weeds, and the nicosulfuron and the terbuthylazine are used singly or in combination for a long time, so that the drug resistance of the weeds is continuously enhanced, the dosage of single agents and compositions is improved year by year, and the environmental and food safety are seriously influenced. With the annual increase of the dosage of chemical herbicide, the side effect of the chemical herbicide on the environment is also of great concern, and the invention can achieve the effects of pesticide reduction and synergy by researching and adding proper auxiliary agent in order to solve the problem that the dosage of the chemical herbicide for the old variety is continuously increased and the environmental pollution is serious. The invention improves the preparation of the known variety medicament, seeks to improve the composition of the auxiliary agent of the medicament of the old variety, and achieves the effect of enhancing the weeding activity.
Disclosure of Invention
The invention aims to solve the problems of continuously increasing dosage of the traditional variety of medicines and serious environmental pollution and reduce the dosage of the herbicide in the corn field, and the invention can achieve the effects of pesticide decrement and synergy by researching and adding proper auxiliary agents.
The specific technical scheme is as follows:
a dispersible oil suspension comprising nicosulfuron and terbuthylazine, comprising the following components in percentage by weight: 25-30% of nicosulfuron, 1-5% of terbuthylazine, 1-15% of dispersing agent, 5-20% of emulsifying agent, 0.5-5% of thickening agent and 100% of solvent;
the dispersing agents are TERSPERSE2700 and atlax 4914;
the emulsifying agent is agro-milk 600# and TW-80;
the thickening agent is white carbon black 974 and bentonite;
the solvent is as follows: methyl oleate.
Preferably, 1.8% of nicosulfuron, 28.2% of terbuthylazine, 1-15% of dispersing agent, 5-20% of emulsifying agent, 0.5-5% of thickening agent and 100% of solvent.
Preferably, 5% of nicosulfuron, 28% of terbuthylazine, 1-15% of dispersing agent, 5-20% of emulsifying agent, 0.5-5% of thickening agent and 100% of solvent.
Further preferred is: TERSPERSE2700 and atlax 4914 are mixed in a mass ratio of 1:5-5:1; the mass ratio of 600# to TW-80 is 1:8-8:1; the mass ratio of the white carbon black 974 to the bentonite is 1:10-10:1.
The preparation method of the invention comprises the following steps: sequentially weighing a solvent, an emulsifier and a dispersing agent according to a formula, adding the solvent, the emulsifier and the dispersing agent into a container, adding an active ingredient after stirring and dissolving, adding about proper zirconia beads, performing sanding at the rotating speed of a stirrer of 1500-3000r/min, measuring the particle size of the sanding by using a laser particle sizer, and adding a thickening agent when the average particle size is less than or equal to 5 mu m, and continuously grinding; and (3) measuring the particle size by using a laser particle sizer, stopping grinding when the average particle size is 2-3 mu m, filtering zirconium beads, and collecting.
The dispersible oil suspending agent prepared by the invention is used for preventing and controlling annual weeds in corn fields, and the preferred weeds are grasses and broadleaf weeds.
The beneficial technical effects are as follows:
1. compared with the existing preparation, the invention selects the specific combination of the dispersing agent, the emulsifying agent and the solvent, can improve the control effect of the medicament and can effectively reduce the dosage of the active ingredients.
2. The dispersing agent is selected from TERSPERSE2700 and atlax 4914; the emulsifier is selected from agro-milk 600# and TW-80; the thickener is selected from white carbon black 974 and bentonite; 30% nicosulfuron terbuthylazine OD prepared when the solvent is methyl oleate; and 33% nicosulfuron terbuthylazine OD have excellent weed control effects.
3. The recommended use method comprises the following steps: 3-5 leaf stage of corn, 2-5 leaf stage of weed and stem and leaf spraying; the pesticide effect is optimal in the 2-3 leaf period, and the spraying is uniform, so that the heavy spraying and the leakage spraying are avoided.
4. The agent is safe to corn varieties planted in experiments, and the tested agent does not have adverse effects on other organisms and peripheral crops after being applied. The yield test result shows that the yield of the test agent treatment is obviously increased compared with that of the blank control area.
Drawings
Fig. 1: specific process flow
Detailed Description
The invention is further illustrated with reference to specific embodiments.
Example 1:30% OD formulation
Preparation: 30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method comprises the following steps: sequentially weighing a solvent, an emulsifying agent and a dispersing agent according to a formula, adding the solvent, the emulsifying agent and the dispersing agent into a container, adding an active ingredient after stirring and dissolving, adding proper zirconia beads, performing sanding at the rotating speed of a stirrer of 1800r/min, measuring the particle size of the mixture by using a laser particle sizer after sanding for 2-4 hours, adding a thickening agent when the average particle size is less than or equal to 5 mu m, and continuously grinding for 0.5-1 hour; and (3) measuring the particle size by using a laser particle sizer, stopping grinding when the average particle size is 2-3 mu m, filtering zirconium beads, and collecting.
The specific process flow is shown in figure 1.
Formulation 2:30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Formulation 3:30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Formulation 4:30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Formulation 5:30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Formulation 6:30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Formulation 7:30% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Example 2:33% OD formulation
Formulation 8:33% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
Formulation 9:33% nicosulfuron terbuthylazine OD; the concrete composition comprises the following components in percentage by weight:
the preparation method and the process flow are the same as above.
And (3) detecting: 30% OD formulations prepared in examples 1-7; the 30% od formulations prepared in examples 8-9 all met the dispersible oil suspending agent performance index constants, and the formulations were acceptable.
Example 3 field efficacy test
Test crop: spring corn of the variety De Meia No. 2 "
Control object: annual weeds (barnyard grass, quinoa, amaranthus retroflexus, black nightshade)
Test agent:
the application method and the water consumption thereof:
corn 3-5 leaf stage, weed 2-5 leaf stage, stem and leaf spraying, water consumption 450L/hectare. The test was repeated three times and the granules were randomized.
The investigation method comprises the following steps: investigation of total grass fresh weight prevention effect 30d after the medicine; 5 points are randomly selected for sampling in each cell, each sampling point is 0.5m < 2 >, the fresh weight is respectively investigated, and the fresh weight control effect is calculated.
Test results:
TABLE 1 control effect of 30% OD on annual weeds in corn fields
Note that: significance at 0.05 level for the lower case letter in the table
TABLE 2 control of annual weeds in corn fields at 33% OD
Note that: significance at 0.05 level for the lower case letter in the table
Conclusion of the test:
the 30% nicosulfuron terbuthylazine OD provided by the formula 3 is used for corn in the 3-5 leaf stage, and the stem and leaf spray has good overall control effect on annual gramineous weeds and broadleaf weeds in the 2-5 leaf stage, and the total fresh weight control effect of the weeds is more than 97% when the dosage of the preparation is 180 ml/mu. Compared with the existing preparation, the invention selects the specific combination of the dispersing agent, the emulsifying agent and the solvent, can improve the control effect of the medicament and can effectively reduce the dosage of the active ingredients.
The 33% nicosulfuron terbuthylazine OD provided by the formulas 8 and 9 is used for the 3-5 leaf stage of corn, and the stem and leaf spray has good overall control effect on annual gramineous weeds and broadleaf weeds in the 2-5 leaf stage of weeds, and the total weed fresh weight control effect is more than 99% when the dosage of the preparation is 80 ml/mu. Compared with the existing preparation, the invention selects the specific combination of the dispersing agent and the emulsifying agent, can improve the control effect of the medicament and can effectively reduce the dosage of the active ingredients.
Conclusion of safety: the agent is safe to corn varieties planted in experiments, and the tested agent does not have adverse effects on other organisms and peripheral crops after being applied. The yield test result shows that the yield of the test agent treatment is obviously increased compared with that of the blank control area.
The recommended use method comprises the following steps: 3-5 leaf stage of corn, 2-5 leaf stage of weed and stem and leaf spraying; the pesticide effect is optimal in the 2-3 leaf period, and the spraying is uniform, so that the heavy spraying and the leakage spraying are avoided.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same.
Claims (7)
1. A dispersible oil suspension comprising nicosulfuron and terbuthylazine, which is characterized by comprising the following components in percentage by weight: 25-30% of nicosulfuron, 1-5% of terbuthylazine, 1-15% of dispersing agent, 5-20% of emulsifying agent, 0.5-5% of thickening agent and 100% of solvent;
the dispersing agents are TERSPERSE2700 and atlax 4914;
the emulsifying agent is agro-milk 600# and TW-80;
the thickening agent is white carbon black 974 and bentonite;
the solvent is as follows: methyl oleate.
2. The dispersible oil suspension of claim 1 wherein nicosulfuron is 1.8%, terbuthylazine is 28.2%, dispersant is 1-15%, emulsifier is 5-20%, thickener is 0.5-5%, and solvent is 100% of the total.
3. The dispersible oil suspension of claim 1 wherein nicosulfuron is 5%, terbuthylazine is 28%, dispersant is 1-15%, emulsifier is 5-20%, thickener is 0.5-5%, and solvent is 100%.
4. The dispersible oil suspension of claim 2, wherein nicosulfuron 1.8%, terbuthylazine 28.2%, TERSPERSE 2700%, atlax 4914%, agro-emulsion 600#6%, TW-80% 10%, white carbon 974.5%, bentonite 1%, methyl oleate make up 100%.
5. A dispersible oil suspension according to claim 3, wherein nicosulfuron 5%, terbuthylazine 28%, TERSPERSE 2700%, atlax 4914%, agro-emulsion 600#12%, TW-80%, white carbon 974.5%, bentonite 1.2%, methyl oleate make up 100%.
6. A dispersible oil suspension according to claim 3, wherein nicosulfuron 5%, terbuthylazine 28%, TERSPERSE 2700%, atlax 4914%, agro-emulsion 600#10%, TW-80%, white carbon 974-1%, bentonite 0.5%, methyl oleate make up 100%.
7. Use of the dispersible oil suspension of any one of claims 1-6 for controlling annual weeds in corn fields, wherein the weeds are barnyard grass, quinoa, amaranthus retroflexus or black nightshade.
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| CN202210443868.3A CN114946872B (en) | 2022-04-26 | 2022-04-26 | Dispersible oil suspending agent containing nicosulfuron and terbuthylazine |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142914A (en) * | 2007-10-09 | 2008-03-19 | 河北省农林科学院粮油作物研究所 | Nicosulfuron terbuthylazine compound weedicide for corn field |
| CN101971846A (en) * | 2010-11-02 | 2011-02-16 | 孙雪梅 | Nicosulfuron and atrazine oil suspending agent composition |
| CN104904737A (en) * | 2015-07-10 | 2015-09-16 | 济南绿邦化工有限公司 | Corn field sealing herbicide |
| WO2020042730A1 (en) * | 2018-08-30 | 2020-03-05 | 沈阳中化农药化工研发有限公司 | Biphenyl compound-containing liquid preparation and application thereof |
| CN111248216A (en) * | 2020-03-17 | 2020-06-09 | 安徽美程化工有限公司 | Weeding composition containing quinclorac, nicosulfuron and terbuthylazine |
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- 2022-04-26 CN CN202210443868.3A patent/CN114946872B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101142914A (en) * | 2007-10-09 | 2008-03-19 | 河北省农林科学院粮油作物研究所 | Nicosulfuron terbuthylazine compound weedicide for corn field |
| CN101971846A (en) * | 2010-11-02 | 2011-02-16 | 孙雪梅 | Nicosulfuron and atrazine oil suspending agent composition |
| CN104904737A (en) * | 2015-07-10 | 2015-09-16 | 济南绿邦化工有限公司 | Corn field sealing herbicide |
| WO2020042730A1 (en) * | 2018-08-30 | 2020-03-05 | 沈阳中化农药化工研发有限公司 | Biphenyl compound-containing liquid preparation and application thereof |
| CN111248216A (en) * | 2020-03-17 | 2020-06-09 | 安徽美程化工有限公司 | Weeding composition containing quinclorac, nicosulfuron and terbuthylazine |
Non-Patent Citations (1)
| Title |
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| 30% 苯唑·烟·特丁可分散油悬浮剂防除玉米田杂 草药效及安全性评价;甘甜 等，;《湖北农业科学》;第61卷(第8期);第62-65页 * |
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