CN112841194A - 28-high brassinolide microcapsule suspending agent and preparation method and application thereof - Google Patents
28-high brassinolide microcapsule suspending agent and preparation method and application thereof Download PDFInfo
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- CN112841194A CN112841194A CN202110045541.6A CN202110045541A CN112841194A CN 112841194 A CN112841194 A CN 112841194A CN 202110045541 A CN202110045541 A CN 202110045541A CN 112841194 A CN112841194 A CN 112841194A
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- high brassinolide
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- brassinolide
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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
- A01N43/02—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms
- A01N43/04—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom
- A01N43/22—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one or more oxygen or sulfur atoms as the only ring hetero atoms with one hetero atom rings with more than six members
-
- 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
- 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
- A01N25/26—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 in coated particulate form
- A01N25/28—Microcapsules or nanocapsules
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Agronomy & Crop Science (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a 28-high brassinolide microcapsule suspending agent which comprises the following components in percentage by mass: 0.0001-60% of 28-high brassinolide, 0.1-5% of wetting agent, 0.1-8% of dispersing agent, 1-6% of antifreezing agent, 0.1-3% of thickening agent, 0.1-3% of defoaming agent, 3-5% of capsule wall material, 0.1-10% of pH regulator and the balance of water, and the microcapsule suspending agent is beneficial to the stability and the efficacy of the 28-high brassinolide in a preparation.
Description
Technical Field
The invention relates to the technical field of pesticide compositions, in particular to a 28-high brassinolide microcapsule suspending agent and application thereof.
Background
At present, the planting area of apples is getting bigger and bigger in China, the traditional method of using a single-dose 24-epibrassinol pesticide variety has no obvious yield increase and more use times; the 28-high brassinolide can promote cell division and elongation, improve enzyme activity, improve seed activity and promote early development, and can be well used for crop nutrition, and can be used for relieving harmful conditions during crop growth, freezing injury, drought and phytotoxicity. 28-high brassinolide is one of steroid compounds with higher biological activity, and is widely present in plants. During each stage of plant growth and development, it can promote the vegetative growth and is favorable for fertilization. The artificially synthesized brassinolide has high activity, can be absorbed by leaves, stems and roots of plants and then is conducted to acting parts, has extremely trace acting concentration, is a high-efficiency plant growth regulator, and can remarkably increase the growth of nutrient bodies of the plants and promote fertilization under very low concentration. It is suitable for grain crops, economic crops, vegetables and fruits, etc. to promote growth and increase yield.
However, the application of 28-high brassinolide is not ideal at present, the efficacy of the 28-high brassinolide cannot be exerted, the slow release effect is poor, the lasting effect is short, and the large-scale application in agriculture is not facilitated.
Therefore, how to provide a 28-high brassinolide microcapsule suspending agent and apply the suspending agent to crop regulation is a problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides a 28-high brassinolide microcapsule suspending agent, wherein auxiliary components are added in the microcapsule suspending agent, which is beneficial to the stability and the drug effect of the 28-high brassinolide in a preparation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a28-high brassinolide microcapsule suspending agent comprises the following components in percentage by mass: 0.0001-60% of 28-high brassinolide, 0.1-5% of wetting agent, 0.1-8% of dispersing agent, 1-6% of antifreezing agent, 0.1-3% of thickening agent, 0.1-3% of defoaming agent, 3-5% of capsule wall material, 0.1-10% of pH regulator and the balance of water.
The functions of the components are as follows:
wetting agent: wetting 28-high brassinolide and wetting the surface of the leaves of the crops when in use;
dispersing agent: forming a stable dispersion of 28-homobrassinolide in the content composition, maintaining the stability of the stored system;
an antifreezing agent: preventing the content composition from curing under low ambient conditions;
thickening agent: preventing delamination of the content composition during storage;
defoaming agent: the foam generated in the processing process is reduced, and the processing efficiency is improved;
capsule wall material: the 28-high brassinolide is wrapped inside to form small particles which are slowly released on the surface of crops to continuously exert the drug effect;
pH regulator: adjusting the environment suitable for stabilizing 28-high brassinolide.
As a preferred embodiment of the present invention, the wetting agent comprises: one or more of sodium butyl naphthalene sulfonate, sodium dodecyl sulfate, fatty alcohol-polyoxyethylene ether, dioctyl sodium sulfosuccinate, Morwet EFW and alkyl naphthalene sulfonate.
As a preferred embodiment of the present invention, the dispersant comprises: one or more of formaldehyde condensate of methyl sodium naphthalene sulfonate, sodium lignosulfonate, calcium lignosulfonate, p-methoxy fatty amido benzenesulfonic acid, desugarized and graded sodium lignosulfonate, sodium salt of naphthalene sulfonic acid condensate, sodium salt of alkyl naphthalene sulfonic acid condensate and alkylphenol polyoxyethylene ether formaldehyde condensate sulfuric acid.
As a preferable technical scheme of the invention, the antifreezing agent comprises: one or more of glycerol, ethylene glycol, propylene glycol, sorbitol and polyethylene glycol.
As a preferred embodiment of the present invention, the thickener comprises: one or more of xanthan gum, magnesium aluminum silicate, bentonite and white carbon black.
As a preferred embodiment of the present invention, the defoaming agent includes: one or more of silicone compound, methanol, silicone oil and cason.
As a preferable technical solution of the present invention, the capsule wall material includes: gelatin, Arabic gum starch, cyclodextrin inclusion compound, chitosan, alginate, polyhydroxyalkyl ester, polyurea resin, urea-formaldehyde resin, melamine monopolymer resin, polypropylene carbonate, methacrylate, carboxymethyl cellulose, maltodextrin, polydopamine, cardanol and/or phenolic resin.
As a preferred technical scheme of the invention, the pH regulator comprises: one or more of ammonium hydroxide, potassium hydroxide, sodium hydroxide, hydrochloric acid, acetic acid, citric acid, and phosphoric acid.
A preparation method of 28-high brassinolide microcapsule suspending agent comprises the following steps: mixing wetting agent, dispersant, antifreeze, thickener, defoamer and pH regulator, shearing in a shearing machine for 30min, mixing, adding 28-high brassinolide, grinding in a ball mill for 2h to make the particle diameter below 5mm, and adding capsule wall material to obtain 28-high brassinolide microcapsule suspension.
The microcapsule suspending agent prepared by the preparation method is applied to preparation of a crop yield increasing medicine.
Compared with the prior art, the invention has the advantages that:
(1) the 28-high brassinolide microcapsule suspending agent has the advantages of regulating effect, environmental friendliness, long acting period and obvious effect of increasing the yield of crops after being used;
(2) the 28-high brassinolide microcapsule suspending agent has a unique dosage form, and can prolong the drug effect period;
(3) the 28-high brassinolide microcapsule suspending agent has the effects of regulating crops, is environment-friendly, and reduces the pollution to the environment after being used.
In conclusion, the 28-high brassinolide microcapsule suspending agent composition has obvious synergistic effect, environment-friendly effect and reduced pesticide residue compared with the existing missible oil, and is worthy of popularization and application in agricultural production.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A28-high brassinolide microcapsule suspending agent comprises the following components in percentage by mass: 0.0001% of butyl sodium naphthalene sulfonate, 0.1% of formaldehyde condensate of methyl sodium naphthalene sulfonate, 1% of glycerol, 0.1% of xanthan gum, 0.1% of silicone, 3% of gelatin, 0.1% of ammonium hydroxide and 95.4999% of water.
Example 2
A28-high brassinolide microcapsule suspending agent comprises the following components in percentage by mass: 28-high brassinolide 60%, sodium dodecyl sulfate 1%, sodium lignosulfonate 0.2%, ethylene glycol 2%, magnesium aluminum silicate 0.5%, methanol 0.7%, chitosan 4%, potassium hydroxide 0.2%, and water 31.4%.
Example 3
A28-high brassinolide microcapsule suspending agent comprises the following components in percentage by mass: 28-high brassinolide 20%, fatty alcohol-polyoxyethylene ether 5%, calcium lignosulphonate 8%, propylene glycol 6%, bentonite 3%, silicone oil 3%, sodium alginate 5%, sodium hydroxide 10% and water 40%.
Example 4
A28-high brassinolide microcapsule suspending agent comprises the following components in percentage by mass: 28-high brassinolide 0.015%, dioctyl sodium sulfosuccinate 1%, p-methoxy fatty amido benzenesulfonic acid 1%, sorbitol 4%, white carbon black 2%, Kathon 1%, polyhydroxyalkyl ester 3.5%, hydrochloric acid 2%, and water 85.485%.
Example 5
A28-high brassinolide microcapsule suspending agent comprises the following components in percentage by mass: 28-high brassinolide 2%, alkyl naphthalene sulfonate 2%, sodium lignosulfonate 3%, polyethylene glycol 5%, bentonite 0.15%, methanol 2%, melamine monopolymer resin 4.5%, acetic acid 3%, and water 78.35%.
The preparation method of the microcapsule suspending agent comprises the following steps: mixing wetting agent, dispersant, antifreeze, thickener, defoamer and pH regulator, shearing in a shearing machine for 30min, mixing, adding 28-high brassinolide, grinding in a ball mill for 2h to make the particle diameter below 5mm, and adding capsule wall material to obtain 28-high brassinolide microcapsule suspension.
Example 6 report of field drug efficacy test
The name of the test item: example 4 (0.015% 28-high brassinolide microcapsule suspension) field efficacy test on apple growth regulation
And (3) test crops: apple (Malus pumila)
Control target: regulating production and increasing yield
Test start time: 2019.04.08
Test completion time: 2019.11.08
Test agents, as in table 1;
the application method and the water consumption are as follows: foliar spray treatment, water consumption (1L/tree)
Test results, as in table 2;
a: the difference was significant compared to the blank group.
And (4) conclusion: the conventional foliar spray (the amount of the sprayed pesticide is 1L per tree) is used for applying the pesticide once respectively in the sprouting stage, the bud stage and the young fruit stage of the apple, and the pesticide is applied for 3 times in total. The dosage of 0.015 percent 28-high brassinolide microcapsule suspending agent is 5-7.5 mg/kg, and the corresponding dilution multiple of the preparation is 2000-3000 times.
Safety: the 0.015% 28-high brassinolide microcapsule suspending agent is safe to citrus trees in the range of test drug dose, has no drug harm, has no adverse effect on quality, and has no influence on non-target organisms.
Example 7: sustained release experiment of 28-high brassinolide microcapsule suspending agent
The microcapsule suspension prepared in example 4 was destroyed under the ultrasonic action for 0min, 10min, 20min, 30min, 60min and 120min, and then the release amount of 28-high brassinolide was measured, and the results are shown in table 3 below;
| ultrasonic damage time of material min | Content detected% |
| 0 | 0.002 |
| 10 | 0.005 |
| 20 | 0.011 |
| 30 | 0.015 |
| 60 | 0.015 |
| 120 | 0.015 |
Example 8: natural free experiments with 28-high brassinolide microcapsule suspension as shown in table 4;
| natural free time of the material, d | Content detected% |
| 0 | 0.002 |
| 1 | 0.007 |
| 3 | 0.009 |
| 7 | 0.013 |
| 15 | 0.014 |
| 20 | 0.015 |
Example 9: the 28-high brassinolide suspension free nature test is shown in table 5;
note: the above sample contents are exemplified by 0.015% 28 high brassinolide.
Comparing tables 3, 4 and 5, the experimental data of ultrasonic capsule wall damage of the 0.015 percent 28-high brassinolide microcapsule suspending agent show that after ultrasonic treatment is carried out for 30min, the capsule wall is completely damaged, the 28-high brassinolide active ingredients are completely released, and the natural free time is as long as 20 days. The drug effect is prolonged through the natural free time; the capsule wall detection data is destroyed by ultrasonic waves, and the 28-high brassinolide forms the capsule wall after the capsule wall material is added, so that a good slow release effect is achieved; compared with the data of a natural free test and a capsule wall destruction test, the 28-high brassinolide encapsulated by the microcapsule can continuously exert the drug effect after being continuously released.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A28-high brassinolide microcapsule suspending agent is characterized by comprising the following components in percentage by mass: 0.0001-60% of 28-high brassinolide, 0.1-5% of wetting agent, 0.1-8% of dispersing agent, 1-6% of antifreezing agent, 0.1-3% of thickening agent, 0.1-3% of defoaming agent, 3-5% of capsule wall material, 0.1-10% of pH regulator and the balance of water.
2. The suspension of 28-high brassinolide microcapsules according to claim 1, wherein said wetting agent comprises: one of sodium butyl naphthalene sulfonate, sodium dodecyl sulfate, fatty alcohol-polyoxyethylene ether, dioctyl sodium sulfosuccinate and alkyl naphthalene sulfonate.
3. The suspension of 28-homobrassinolide microcapsules of claim 1, wherein said dispersing agent comprises: one of a formaldehyde condensate of sodium methylnaphthalenesulfonate, sodium lignosulfonate, calcium lignosulfonate, p-methoxy fatty amido benzenesulfonic acid and sodium lignosulfonate.
4. The 28-high brassinolide microcapsule suspension according to claim 1, wherein the cryoprotectant comprises: one of glycerol, ethylene glycol, propylene glycol, sorbitol and polyethylene glycol.
5. The suspension of 28-high brassinolide microcapsules according to claim 1, wherein said thickening agent comprises: one or more of xanthan gum, magnesium aluminum silicate, bentonite and white carbon black.
6. The 28-high brassinolide microcapsule suspension according to claim 1, wherein the antifoaming agent comprises: one of silicone compound, methanol, silicone oil and cason.
7. The suspension of 28-high brassinolide microcapsules according to claim 1, wherein the wall material comprises: gelatin, chitosan, alginate, polyhydroxyalkyl ester, and melamine monopolymer resin.
8. The suspension of 28-homobrassinolide microcapsules of claim 1, wherein the pH adjusting agent comprises: one of ammonium hydroxide, potassium hydroxide, sodium hydroxide, hydrochloric acid and acetic acid.
9. A method of making a 28-high brassinolide microcapsule suspension according to any one of claims 1 to 8, comprising: mixing wetting agent, dispersant, antifreeze, thickener, defoamer and pH regulator, shearing in a shearing machine for 30min, mixing, adding 28-high brassinolide, grinding in a ball mill for 2h to make the particle diameter below 5mm, and adding capsule wall material to obtain 28-high brassinolide microcapsule suspension.
10. Use of the microcapsule suspension prepared by the preparation method according to claim 9 for the preparation of a crop yield increasing medicament.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110045541.6A CN112841194A (en) | 2021-01-13 | 2021-01-13 | 28-high brassinolide microcapsule suspending agent and preparation method and application thereof |
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| CN202110045541.6A CN112841194A (en) | 2021-01-13 | 2021-01-13 | 28-high brassinolide microcapsule suspending agent and preparation method and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116267951A (en) * | 2023-03-17 | 2023-06-23 | 郑州郑氏化工产品有限公司 | Preparation method of microcapsule suspending agent containing brassinolide |
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| CN1478390A (en) * | 2003-07-08 | 2004-03-03 | 云大科技股份有限公司 | Plant growth regulating agent mixture containing brassinolide like compound and its application |
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| WO2014079728A1 (en) * | 2012-11-22 | 2014-05-30 | Basf Se | Pesticidal mixtures |
| CN105454236A (en) * | 2014-08-22 | 2016-04-06 | 陕西美邦农药有限公司 | Plant growth regulation composition containing tetramethyl glutaric acid |
| CN106305745A (en) * | 2015-06-19 | 2017-01-11 | 陕西美邦农药有限公司 | Allantoin-containing plant growth regulating composition |
| CN107347881A (en) * | 2017-06-23 | 2017-11-17 | 中国农业科学院农业环境与可持续发展研究所 | A kind of pesticide nano capsules and preparation method thereof |
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2021
- 2021-01-13 CN CN202110045541.6A patent/CN112841194A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1478390A (en) * | 2003-07-08 | 2004-03-03 | 云大科技股份有限公司 | Plant growth regulating agent mixture containing brassinolide like compound and its application |
| CN102027949A (en) * | 2010-12-03 | 2011-04-27 | 成都绿金高新技术股份有限公司 | Brassinolide neem microcapsule |
| WO2014079728A1 (en) * | 2012-11-22 | 2014-05-30 | Basf Se | Pesticidal mixtures |
| CN105454236A (en) * | 2014-08-22 | 2016-04-06 | 陕西美邦农药有限公司 | Plant growth regulation composition containing tetramethyl glutaric acid |
| CN106305745A (en) * | 2015-06-19 | 2017-01-11 | 陕西美邦农药有限公司 | Allantoin-containing plant growth regulating composition |
| CN107347881A (en) * | 2017-06-23 | 2017-11-17 | 中国农业科学院农业环境与可持续发展研究所 | A kind of pesticide nano capsules and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116267951A (en) * | 2023-03-17 | 2023-06-23 | 郑州郑氏化工产品有限公司 | Preparation method of microcapsule suspending agent containing brassinolide |
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