CN110973146A - Suspended seed coating agent containing pyraclostrobin and fludioxonil and preparation method thereof - Google Patents
Suspended seed coating agent containing pyraclostrobin and fludioxonil and preparation method thereof Download PDFInfo
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- CN110973146A CN110973146A CN201911239118.9A CN201911239118A CN110973146A CN 110973146 A CN110973146 A CN 110973146A CN 201911239118 A CN201911239118 A CN 201911239118A CN 110973146 A CN110973146 A CN 110973146A
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- Prior art keywords
- seed coating
- fludioxonil
- agent
- pyraclostrobin
- suspended seed
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Classifications
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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
- A01N47/10—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof
- A01N47/24—Carbamic acid derivatives, i.e. containing the group —O—CO—N<; Thio analogues thereof containing the groups, or; Thio analogues thereof
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
-
- 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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/36—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom five-membered rings
Abstract
The invention belongs to the field of seed coating agents, and particularly relates to a suspended seed coating agent containing pyraclostrobin and fludioxonil, which comprises, by weight, fludioxonil X, pyraclostrobin Y, 3-6% of an emulsifier, 0.15-0.2% of a thickener, 3-4% of an antifreeze agent, 0.2-0.5% of an antifoaming agent, 4-5% of a warning color, 3-4% of a film forming agent, 0.1-1% of a preservative, and the balance of water; wherein X + Y is 6. The invention has the beneficial effects that: the particle size of the existing suspension seed coating agent is easy to grow up, and the seed coating agent is easy to agglomerate when being alternately stored in cold and hot states; the suspension seed coating agent prepared by the invention has stable performance and uniform coating, and compared with the existing suspension seed coating agent, the particle size basically keeps stable, and the cold and hot alternate storage is normal.
Description
Technical Field
The invention belongs to the field of seed coating agents, and particularly relates to a suspended seed coating agent containing pyraclostrobin and fludioxonil and a preparation method thereof.
Background
The suspension seed coating agent is more and more popular with users due to environmental protection, high efficiency, convenient use, low production cost, small environmental pollution and strong targeting, and is the mainstream direction of the development of green pesticide preparations. More and more growers choose to coat with a suspension seed coating.
Pyraclostrobin belongs to strobilurin fungicides, and has high efficiency and broad spectrum; fludioxonil has excellent protective properties by inhibiting glucose phosphorylation-related transfer and inhibiting the growth of fungal mycelia. The compounding of the medicament is one of effective modes for expanding the bactericidal spectrum of the medicament and delaying the medicament resistance of the medicament. Pyraclostrobin and fludioxonil belong to bactericides with different action mechanisms, and can play a good complementary and synergistic effect after being mixed.
The existing pyraclostrobin suspension seed coating agent is easy to grow in particle size, easy to agglomerate due to alternate cold and hot storage, and needs to improve the control effect on wheat sharp eyespot.
Disclosure of Invention
In order to solve the problems, the invention provides the suspended seed coating containing the pyraclostrobin and the fludioxonil, which can solve the problems that the existing suspended seed coating is easy to grow in particle size and easy to agglomerate when being stored alternately in cold and hot states, and can greatly improve the control of the wheat sharp eyespot.
The invention provides the following technical scheme:
the suspended seed coating agent containing pyraclostrobin and fludioxonil comprises, by weight, fludioxonil X, pyraclostrobin Y, 3-6% of an emulsifier, 0.15-0.2% of a thickening agent, 3-4% of an antifreeze agent, 0.2-0.5% of a defoaming agent, 4-5% of a warning color, 3-4% of a film forming agent, 0.1-1% of a preservative and the balance of water;
wherein X + Y is 6.
Preferably, the emulsifier is selected from one or more of sodium lignosulfonate, sodium methylene dinaphthalene sulfonate, polyethylene glycol, castor oil polyoxyethylene ether, sorbitan fatty acid ester, ethylene oxide propylene oxide block copolymer and fatty alcohol polyoxyethylene ether.
Preferably, the thickening agent is selected from any one or more of magnesium aluminum silicate, xanthan gum, β -cyclodextrin, sodium carboxymethyl cellulose and polyvinyl alcohol.
Preferably, the antifreeze is any one or more selected from ethylene glycol, glycerol and urea.
Preferably, the defoaming agent is selected from any one or more of silicone defoaming agent, polyether defoaming agent, silicone modified defoaming agent and fatty alcohol.
Preferably, the warning color is selected from any one or more of Dycofast, fluorochein Red5B, Red-8110 and Red-131.
Preferably, the film forming agent is selected from any one or more of polyvinyl alcohol, gum arabic, animal gum, pectin, xanthan gum, methyl cellulose, ethyl cellulose, hydroxypropyl cellulose, sodium alginate and polyvinylpyrrolidone.
Preferably, the preservative is selected from any one or more of benzoic acid, benzaldehyde, sodium benzoate, potassium sorbate and sodium salicylate.
Preferably, the composition comprises, by weight, 5% of pyraclostrobin, 1% of fludioxonil, 3.5% of sodium methylenedinaphthalenesulfonate, 2% of ethylene oxide-propylene oxide block copolymer, 2% of fatty alcohol-polyoxyethylene ether, 4% of ethylene glycol, 0.2% of xanthan gum, 2.5% of magnesium aluminum silicate, 1% of potassium sorbate, Red-1315%, 3% of polyvinylpyrrolidone and the balance of water.
The invention also provides a preparation method of the suspension seed coating agent, which is characterized by comprising the following steps: taking pyraclostrobin and fludioxonil according to weight percentage, mixing with an emulsifier, a thickener, a warning color and an antifreezing agent, supplementing water to 100%, dispersing until the particle size is 1-2 microns, adding a defoaming agent, a preservative and a film-forming agent, and uniformly mixing to obtain the suspended seed coating agent.
The invention has the beneficial effects that:
1. the particle size of the existing suspension seed coating agent is easy to grow up, and the seed coating agent is easy to agglomerate when being alternately stored in cold and hot states;
the suspension seed coating agent prepared by the invention has stable performance and uniform coating, and compared with the existing suspension seed coating agent, the particle size basically keeps stable, and the cold and hot alternate storage is normal.
2. Compared with foliar spray, the foliar spray has the advantages of concentrated drug efficacy, high utilization rate, labor and time saving, safety, environmental protection and the like. The dosage of the seed treatment is less than 1 percent of that of the foliage spraying, and the same disease prevention effect can be achieved. The method conforms to the concept of green development of pesticide formulations.
3. Pyraclostrobin is mitochondrial respiration inhibitor and can be used for inhibiting cytochrome b and c1The inter-electron transfer inhibits mitochondrial respiration and renders mitochondria unable to produce and supply energy required for normal cellular metabolism. It has strong capability of inhibiting germ spore germination, and has good inhibition effect on hypha growth. Pyraclostrobin has protective and therapeutic effects. The main functions of fludioxonil are to inhibit spore germination, germ tube elongation and hyphal growth of pathogenic fungi. The pathogenic fungi need to consume a large amount of energy in the spore germination and germ tube extension infection process, the pyraclostrobin can inhibit mitochondrial respiration and energy generation, and when the two are mixed in a reasonable proportion, a remarkable synergistic effect is generated. When the total amount of the active ingredients of the mixed preparation of the two is about 6 percent, and the film-forming agent with proper dosage is matched for seed coating, a firm medicinal film can be formed on the surface of the seed, and the disease infection is obviously controlled.
4. The suspended seed coating agent contains a film-forming agent, the active ingredients are fixed on the surface of seeds to form a micro-environment for continuous medicine supply underground, the active ingredients can be slowly released and then absorbed by plants and conducted to various parts to play a role, and the duration is obviously prolonged. The wheat seeds and the suspension seed coating agent prepared by the invention show excellent protection effect on wheat sharp eyespot under the conditions that the coating ratio is 1:1000 and 1:2000, wherein the best effect is that the suspension seed coating agent of the embodiment 3 has the protection effect on wheat sharp eyespot which is 96.2 percent and is far higher than 84.3 percent of that of a control group under the condition that the coating ratio is 1: 1000.
Detailed Description
The present invention will be described in detail with reference to the following examples.
Example 1
The suspended seed coating agent containing pyraclostrobin and fludioxonil comprises, by weight, 5.4% of pyraclostrobin, 0.6% of fludioxonil, 3% of methylene dinaphthalene sodium sulfonate, 1% of castor oil polyoxyethylene ether, 2.2% of styrylphenol polyoxyethylene ether, 4% of ethylene glycol, 0.15% of xanthan gum, 2.1% of magnesium aluminum silicate, 1% of potassium sorbate, Red-81104%, 3% of polyvinyl alcohol and the balance of water.
Example 2
The suspended seed coating agent containing pyraclostrobin and fludioxonil comprises, by weight, 3% of pyraclostrobin, 3% of fludioxonil, 4.0% of sodium methylene dinaphthalene sulfonate, 2% of castor oil polyoxyethylene ether, 20002% of polyethylene glycol, 4% of ethylene glycol, 0.18% of xanthan gum, 2% of magnesium aluminum silicate, 1% of potassium sorbate, Red-81105%, 3% of polyvinyl alcohol and the balance of water.
Example 3
The suspended seed coating agent containing pyraclostrobin and fludioxonil comprises, by weight, 5% of pyraclostrobin, 1% of fludioxonil, 3.5% of methylene dinaphthalene sodium sulfonate, 2% of ethylene oxide propylene oxide block copolymer, 2% of fatty alcohol polyoxyethylene ether, 4% of ethylene glycol, 0.2% of xanthan gum, 2.5% of magnesium aluminum silicate, 1% of potassium sorbate, Red-1315%, 3% of polyvinylpyrrolidone and the balance of water.
Example 4
The suspended seed coating agent containing pyraclostrobin and fludioxonil comprises, by weight, 6% of pyraclostrobin, 3% of methylene dinaphthalene sodium sulfonate, 1% of castor oil polyoxyethylene ether, 2.2% of styrylphenol polyoxyethylene ether, 4% of ethylene glycol, 0.15% of xanthan gum, 2.1% of magnesium aluminum silicate, 1% of potassium sorbate, Red-81104%, 3% of polyvinyl alcohol and the balance of water.
Example 5
The suspended seed coating agent containing pyraclostrobin and fludioxonil comprises, by weight, 6% of fludioxonil, 3% of methylene dinaphthalene sodium sulfonate, 1% of castor oil polyoxyethylene ether, 2.2% of styrylphenol polyoxyethylene ether, 4% of ethylene glycol, 0.15% of xanthan gum, 2.1% of magnesium aluminum silicate, 1% of potassium sorbate, Red-81104%, 3% of polyvinyl alcohol and the balance of water.
The suspended seed coating agent of each embodiment is prepared by sanding by a sand mill.
The physical and chemical properties of the suspended seed coating formulations of the above examples are shown in table 1.
TABLE 1 physicochemical Properties of the examples
| Examples | Grinding time/h | Suspension rate/% | D90Micron/micron | Fraction of fraction/% |
| 1 | 1.5 | 99.1 | 2.17 | 0.9 |
| 2 | 1.5 | 98.9 | 2.03 | 1.1 |
| 3 | 1.5 | 98.5 | 1.86 | 0.5 |
| 4 | 1.5 | 96.7 | 3.02 | 3.5 |
| 5 | 1.5 | 95.8 | 2.91 | 2.7 |
As can be seen from Table 1, in examples 1 to 3, the suspension ratios were all 98% or more based on 1.5 hours of grinding time, and D90About 2 microns, the layering rate is less than about 1.1%. All indexes are obviously higher than those of the examples 4 and 5 serving as a control group, and the advantages are obvious.
The suspended seed coating prepared in examples 1 to 5 was used for wheat seed coating. The results are shown in Table 2.
TABLE 2 post-dressing effect of the examples on wheat
| Examples | Coating proportion | Root length/cm | Seedling length/cm | Sheath blight control effect/%) |
| 1 | 1:1000 | 13.42 | 9.31 | 91.2 |
| 1:2000 | 11.69 | 8.99 | 86.4 | |
| 2 | 1:1000 | 14.22 | 10.21 | 90.4 |
| 1:2000 | 12.31 | 9.24 | 85.2 | |
| 3 | 1:1000 | 10.43 | 9.55 | 96.2 |
| 1:2000 | 11.70 | 11.36 | 91.7 | |
| 4 | 1:1000 | 11.56 | 8.67 | 84.3 |
| 1:2000 | 9.88 | 7.76 | 79.5 | |
| 5 | 1:1000 | 12.73 | 9.46 | 82.1 |
| 1:2000 | 10.67 | 8.78 | 75.2 |
The wheat seeds and the suspension seed coating agent prepared by the invention show excellent protection effect on wheat sharp eyespot under the conditions that the coating ratio is 1:1000 and 1:2000, wherein the best effect is that the suspension seed coating agent of the embodiment 3 has the protection effect on wheat sharp eyespot which is 96.2 percent and is far higher than 84.3 percent of that of a control group under the condition that the coating ratio is 1: 1000.
The suspended seed coating agent prepared in example 3 has such excellent effects because of the complementation of the action mechanisms. Pyraclostrobin is a mitochondrial respiration inhibitor, so that mitochondria cannot generate and provide energy required by normal metabolism of cells, and the pyraclostrobin has strong capability of inhibiting germ spore germination. The main functions of fludioxonil are to inhibit spore germination, germ tube elongation and hyphal growth of pathogenic fungi. In the process, a large amount of energy of pathogenic fungi is consumed, and when the ratio of the pathogenic fungi to the pathogenic fungi is 5:1, a firm medicinal film can be formed on the surface of the seed after the seed is coated by matching with a proper amount of film forming agent, so that the disease infection is obviously controlled. Has obvious synergistic effect.
Table three parameters of the embodiments suspension seed coating storage performance parameters
From table 3, it can be seen that the suspended seed coating prepared in examples 1-3 has a particle size difference and a water-separating rate before and after storage superior to those of the control group (examples 4 and 5), and no caking phenomenon occurred in examples 1-3, wherein the particle size difference before and after storage is only 0.2 micrometers, which is much lower than 2 micrometers of example 4 and 2.3 micrometers of example 5, in example 3 with the best effect.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The suspended seed coating agent containing pyraclostrobin and fludioxonil is characterized by comprising fludioxonil X, pyraclostrobin Y, 3-6% of an emulsifier, 0.15-0.2% of a thickening agent, 3-4% of an antifreezing agent, 0.2-0.5% of an antifoaming agent, 4-5% of a warning color, 3-4% of a film forming agent, 0.1-1% of a preservative and the balance of water in percentage by weight;
wherein X + Y is 6.
2. The suspended seed coating containing pyraclostrobin and fludioxonil as claimed in claim 1, wherein the emulsifier is selected from any one or more of sodium lignosulfonate, sodium methylenedinaphthalene sulfonate, polyethylene glycol, castor oil polyoxyethylene ether, sorbitan fatty acid ester, ethylene oxide propylene oxide block copolymer and fatty alcohol polyoxyethylene ether.
3. The suspended seed coating containing pyraclostrobin and fludioxonil as claimed in claim 1, wherein the thickening agent is selected from any one or more of magnesium aluminum silicate, xanthan gum, β -cyclodextrin, sodium carboxymethylcellulose and polyvinyl alcohol.
4. The suspended seed coating containing pyraclostrobin and fludioxonil as claimed in claim 1, wherein the antifreeze agent is selected from any one or more of ethylene glycol, glycerol and urea.
5. The suspended seed coating agent containing pyraclostrobin and fludioxonil as claimed in claim 1, wherein the antifoaming agent is selected from any one or more of silicone antifoaming agents, polyether antifoaming agents, silicone modified antifoaming agents and fatty alcohols.
6. The suspended seed coating containing pyraclostrobin and fludioxonil according to claim 1, wherein the warning color is selected from any one or more of Dycofast, fluorochein Red5B, Red-8110 and Red-131.
7. The suspended seed coating containing pyraclostrobin and fludioxonil as claimed in claim 1, wherein the film forming agent is selected from any one or more of polyvinyl alcohol, gum arabic, animal gum, pectin, xanthan gum, methyl cellulose, ethyl cellulose, hydroxypropyl cellulose, sodium alginate and polyvinylpyrrolidone.
8. The suspended seed coating containing pyraclostrobin and fludioxonil as claimed in claim 1, wherein the preservative is selected from any one or more of benzoic acid, benzaldehyde, sodium benzoate, potassium sorbate and sodium salicylate.
9. The suspended seed coating containing pyraclostrobin and fludioxonil according to claim 1, which comprises 5% of pyraclostrobin, 1% of fludioxonil, 3.5% of sodium methylenedinaphthalenesulfonate, 2% of ethylene oxide-propylene oxide block copolymer, 2% of fatty alcohol-polyoxyethylene ether, 4% of ethylene glycol, 0.2% of xanthan gum, 2.5% of magnesium aluminum silicate, 1% of potassium sorbate, Red-1315%, 3% of polyvinylpyrrolidone and the balance of water by weight percentage.
10. A method for preparing the suspended seed coating agent of claim 1, which comprises the following steps: taking pyraclostrobin and fludioxonil according to weight percentage, mixing with an emulsifier, a thickener, a warning color and an antifreezing agent, supplementing water to 100%, dispersing until the particle size is 1-2 microns, adding a defoaming agent, a preservative and a film-forming agent, and uniformly mixing to obtain the suspended seed coating agent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911239118.9A CN110973146A (en) | 2019-12-06 | 2019-12-06 | Suspended seed coating agent containing pyraclostrobin and fludioxonil and preparation method thereof |
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| CN201911239118.9A CN110973146A (en) | 2019-12-06 | 2019-12-06 | Suspended seed coating agent containing pyraclostrobin and fludioxonil and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111955463A (en) * | 2020-07-01 | 2020-11-20 | 浙江天丰生物科学有限公司 | Efficient and safe suspended seed coating for wheat |
| WO2023217394A1 (en) * | 2022-05-13 | 2023-11-16 | Syngenta Crop Protection Ag | Formulation comprising fludioxonil |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105851031A (en) * | 2016-05-26 | 2016-08-17 | 洛阳市嘉创农业开发有限公司 | Suspended seed coating agent containing fludioxonil and pyraclostrobin |
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2019
- 2019-12-06 CN CN201911239118.9A patent/CN110973146A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105851031A (en) * | 2016-05-26 | 2016-08-17 | 洛阳市嘉创农业开发有限公司 | Suspended seed coating agent containing fludioxonil and pyraclostrobin |
Non-Patent Citations (1)
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| 张成玲等: "不同杀菌剂对花生根茎部病害防治效果研究", 《花生学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111955463A (en) * | 2020-07-01 | 2020-11-20 | 浙江天丰生物科学有限公司 | Efficient and safe suspended seed coating for wheat |
| WO2023217394A1 (en) * | 2022-05-13 | 2023-11-16 | Syngenta Crop Protection Ag | Formulation comprising fludioxonil |
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