CN114223660A - Plant growth regulator containing propionyl brassinolide and triacontanol - Google Patents
Plant growth regulator containing propionyl brassinolide and triacontanol Download PDFInfo
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- CN114223660A CN114223660A CN202210067659.3A CN202210067659A CN114223660A CN 114223660 A CN114223660 A CN 114223660A CN 202210067659 A CN202210067659 A CN 202210067659A CN 114223660 A CN114223660 A CN 114223660A
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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
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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
- A01N25/08—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 solids as carriers or diluents
- A01N25/10—Macromolecular compounds
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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
- A01N25/26—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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- 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
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F290/00—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups
- C08F290/02—Macromolecular compounds obtained by polymerising monomers on to polymers modified by introduction of aliphatic unsaturated end or side groups on to polymers modified by introduction of unsaturated end groups
- C08F290/06—Polymers provided for in subclass C08G
- C08F290/061—Polyesters; Polycarbonates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
- C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
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Abstract
The invention discloses a plant growth regulator containing propionyl brassinolide and triacontanol, dispersing growth microcapsules in deionized water, adding water-absorbing resin and 1-hydroxybenzotriazole, reacting, filtering to remove filtrate, and drying a filter cake to prepare the plant growth regulator; the water-absorbent resin contains a large number of hydrophilic groups, the main chain is acrylic resin, the resin has good water retention capacity, and the main chain contains polylactic acid, so that the water-absorbent resin can be degraded by soil after use, the environmental protection requirement is met, the growth microcapsules are prepared at the same time to carry out microencapsulation treatment on growth liquid, the release speed of auxin is slowed down, the utilization rate of the auxin is improved, the surface of the growth microcapsules contains a large number of amino groups, and the growth microcapsules and carboxyl groups on the water-absorbent resin are subjected to dehydration condensation, so that the microcapsules can be attached to the surface of the water-absorbent resin.
Description
Technical Field
The invention relates to the technical field of preparation of growth regulators, in particular to a plant growth regulator containing propionyl brassinolide and triacontanol.
Background
Plant growth regulators are substances for regulating plant growth and development, and for target plants, the plant growth regulators are exogenous non-nutritive chemical substances which can be generally conducted to action parts in plants to promote or inhibit certain links of life processes of the plants at very low concentration, so that the plants are developed to meet the needs of human beings, each plant growth regulator has specific application, and the application technical requirements are quite strict, and the plant growth regulators can generate specific effects on the target plants only under specific application conditions, so that the concentration is often changed to obtain opposite results, for example, the plant growth regulators have the promotion effect at low concentration, and the plant growth regulators become the inhibition effect at high concentration;
the plant growth regulator has a plurality of purposes, which are different from varieties and target plants, such as sprout and dormancy control, rooting promotion, cell elongation and division promotion, lateral bud or tillering control and the like, and in the utilization of plants such as agricultural production, the problem that how to effectively enable the plant growth is always concerned for plant users is solved, and the existing plant growth regulator can run off along with the loss of water in soil in the use process, so that crops cannot be fully utilized, the dosage of the growth regulator is excessive, and the planting cost is increased;
a solution is now proposed to address the technical drawback in this respect.
Disclosure of Invention
The invention aims to provide a plant growth regulator containing propionyl brassinolide and triacontanol, which solves the problems that the plant growth regulator at the present stage is easy to lose along with water and is difficult to be fully absorbed in the using process through water-absorbent resin.
The purpose of the invention can be realized by the following technical scheme:
a plant growth regulator containing propionyl brassinolide and triacontanol is prepared by the following steps:
dispersing the growing microcapsule in deionized water, adding water-absorbing resin and 1-hydroxybenzotriazole, reacting at the rotation speed of 150-.
Furthermore, the dosage ratio of the growing microcapsule to the water-absorbing resin is 2:5 by mass.
Further, the water-absorbent resin is prepared by the following steps:
step A1: uniformly mixing lactide, polyethylene glycol 2000 and toluene, introducing nitrogen for protection, stirring and adding stannous octoate under the conditions of the rotation speed of 150-130 ℃ and the temperature of 120-130 ℃, performing reflux reaction for 10-15h to obtain an intermediate 1, dissolving the intermediate 1 in dichloromethane, stirring and adding triethylamine and acryloyl chloride under the conditions of the rotation speed of 120-150r/min and the temperature of 0-3 ℃, reacting for 10-15h, heating to the temperature of 20-25 ℃, and continuing to react for 10-15h to obtain an intermediate 2;
the reaction process is as follows:
step A2: uniformly mixing acrylic acid, sodium acrylate, 2-acrylamide-2-methylbenzenesulfonic acid, the intermediate 2 and a potassium persulfate solution, reacting for 2-3h at the rotation speed of 200-300r/min and the temperature of 60-70 ℃ to obtain an intermediate 3, uniformly mixing the intermediate 3, polyvinyl alcohol 1000, N-dimethylformamide and methylbenzoic acid, and reacting for 5-7h at the rotation speed of 150-200r/min and the temperature of 110-120 ℃ to obtain the water-absorbent resin.
The reaction process is as follows:
further, the molar ratio of the lactide to the polyethylene glycol 2000 in the step A1 is 20:1, the dosage of the stannous octoate is 1% of the mass sum of the lactide and the polyethylene glycol 2000, and the molar ratio of the intermediate 1, the triethylamine and the acryloyl chloride is 1:3: 5.
Further, the dosage ratio of the acrylic acid, the sodium acrylate, the 2-acrylamide-2-methylbenzenesulfonic acid and the intermediate 2 in the step A2 is 8g:5g:3g:5g, the dosage of the potassium persulfate is 0.5 percent of the total mass of the reactants, and the dosage ratio of the intermediate 3 to the polyvinyl alcohol 1000 is 5: 3.
The growth microcapsule is prepared by the following steps:
step B1: uniformly mixing chitosan, methyl acrylate and methanol, carrying out reflux reaction for 40-50h at the rotation speed of 150-200r/min and the temperature of 70-75 ℃, distilling to remove the solvent, uniformly mixing the substrate, ethylenediamine and methanol, and carrying out reflux reaction for 20-25h at the rotation speed of 200-300r/min and the temperature of 70-75 ℃ to obtain the modified chitosan;
step B2: propionyl brassinolide, triacontanol and dichloromethane are mixed, stirring is carried out for 1-1.5h under the conditions that the rotating speed is 600-800r/min and the temperature is 30-40 ℃ to prepare a growth liquid, the growth liquid, gelatin liquid and modified chitosan solution are added into a stirring kettle, stirring is carried out until the growth liquid, the gelatin liquid and the modified chitosan solution are uniformly mixed under the conditions that the rotating speed is 300-500r/min, deionized water is added, reaction is carried out for 30-40min under the conditions that the temperature is 50-55 ℃ and the pH value is 6-6.5, then the temperature is reduced to 20-25 ℃, glutaraldehyde is added, reaction is carried out for 40-50min under the condition that the temperature is 30-35 ℃, filtrate is filtered to remove, and filter cakes are dried to prepare the growth microcapsule.
Furthermore, the dosage ratio of the chitosan, the methyl acrylate and the methanol in the step B1 is 8g:25mL:40mL, and the dosage ratio of the substrate, the ethylenediamine and the methanol is 16g:15mL:80 mL.
Further, the dosage of the propionyl brassinolide in the step B2 is 0.003 percent of the mass of the growth solution, the dosage of the triacontanol is 0.097 percent of the mass of the growth solution, the dosage ratio of the growth solution, the gelatin solution, the modified chitosan solution, the deionized water and the glutaraldehyde is 5.3g to 20mL to 18g to 120mL to 10mL, and the concentration of the modified chitosan solution is 1 g/L.
The invention has the following beneficial effects:
the plant growth regulator containing propionyl brassinolide and triacontanol prepared by the invention can well promote the plant growth by compounding the propionyl brassinolide and the triacontanol, and prepares the water-absorbent resin, the water-absorbent resin takes lactide and polyethylene glycol 2000 as raw materials to carry out copolymerization to prepare an intermediate 1, the intermediate 1 is reacted with acrylic acid chloride to prepare an intermediate 2, the intermediate 2, acrylic acid, sodium acrylate and 2-acrylamide-2-methyl benzene sulfonic acid are copolymerized to prepare an intermediate 3, the intermediate 3 is reacted with polyvinyl alcohol 1000 to ensure that partial carboxyl on the intermediate 3 is esterified with partial hydroxyl on the polyvinyl alcohol 1000 to prepare the water-absorbent resin, the water-absorbent resin contains a large amount of hydrophilic groups, and the main chain is acrylic resin, so that the resin has good water retention capacity, the growth microcapsule is prepared by reacting chitosan serving as a raw material with methyl acrylate, enabling double bonds on the methyl acrylate to generate Michael addition reaction with amino on the chitosan, and then carrying out amidation treatment with ethylenediamine, so that chitosan molecules contain more active amino, and then carrying out microencapsulation treatment on the growth liquid to prepare the growth microcapsule.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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
A plant growth regulator containing propionyl brassinolide and triacontanol is prepared by the following steps:
dispersing the growth microcapsule in deionized water, adding water-absorbing resin and 1-hydroxybenzotriazole, reacting at 20 deg.C at 150r/min for 30min, filtering to remove filtrate, and oven drying the filter cake to obtain the plant growth regulator.
The water-absorbing resin is prepared by the following steps:
step A1: uniformly mixing lactide, polyethylene glycol 2000 and toluene, introducing nitrogen for protection, stirring and adding stannous octoate under the conditions that the rotating speed is 150r/min and the temperature is 120 ℃, performing reflux reaction for 10 hours to prepare an intermediate 1, dissolving the intermediate 1 in dichloromethane, stirring and adding triethylamine and acryloyl chloride under the conditions that the rotating speed is 120r/min and the temperature is 0 ℃, reacting for 10 hours, heating to the temperature of 20 ℃, and continuing to react for 10 hours to prepare an intermediate 2;
step A2: uniformly mixing acrylic acid, sodium acrylate, 2-acrylamide-2-methylbenzenesulfonic acid, the intermediate 2 and a potassium persulfate solution, reacting for 2 hours at the rotation speed of 200r/min and the temperature of 60 ℃ to obtain an intermediate 3, uniformly mixing the intermediate 3, polyvinyl alcohol 1000, N-dimethylformamide and methylbenzoic acid, and reacting for 5 hours at the rotation speed of 150r/min and the temperature of 110 ℃ to obtain the water-absorbent resin. The growth microcapsule is prepared by the following steps:
step B1: uniformly mixing chitosan, methyl acrylate and methanol, performing reflux reaction for 40 hours at the rotation speed of 150r/min and the temperature of 70 ℃, distilling to remove the solvent, uniformly mixing a substrate, ethylenediamine and methanol, and performing reflux reaction for 20 hours at the rotation speed of 200r/min and the temperature of 70 ℃ to obtain modified chitosan;
step B2: propionyl brassinolide, triacontanol and dichloromethane are mixed, stirring is carried out for 1h under the conditions that the rotating speed is 600r/min and the temperature is 30 ℃, growth liquid is prepared, growth liquid, gelatin liquid and modified chitosan solution are added into a stirring kettle, stirring is carried out under the conditions that the rotating speed is 300r/min until the growth liquid, the gelatin liquid and the modified chitosan solution are uniformly mixed, deionized water is added, reaction is carried out for 30min under the conditions that the temperature is 50 ℃ and the pH value is 6, then the temperature is reduced to 20 ℃, glutaraldehyde is added, reaction is carried out for 40min under the condition that the temperature is 30 ℃, filtrate is filtered and removed, and filter cake is dried, so that the growth microcapsule is prepared.
Example 2
A plant growth regulator containing propionyl brassinolide and triacontanol is prepared by the following steps:
dispersing the growth microcapsule in deionized water, adding water-absorbing resin and 1-hydroxybenzotriazole, reacting at 23 deg.C at 180r/min for 35min, filtering to remove filtrate, and oven drying the filter cake to obtain the plant growth regulator.
The water-absorbing resin is prepared by the following steps:
step A1: uniformly mixing lactide, polyethylene glycol 2000 and toluene, introducing nitrogen for protection, stirring and adding stannous octoate under the conditions that the rotating speed is 180r/min and the temperature is 125 ℃, performing reflux reaction for 13 hours to obtain an intermediate 1, dissolving the intermediate 1 in dichloromethane, stirring and adding triethylamine and acryloyl chloride under the conditions that the rotating speed is 120r/min and the temperature is 2 ℃, reacting for 13 hours, heating to 23 ℃, and continuing to react for 13 hours to obtain an intermediate 2;
step A2: uniformly mixing acrylic acid, sodium acrylate, 2-acrylamide-2-methylbenzenesulfonic acid, the intermediate 2 and a potassium persulfate solution, reacting for 2.5 hours at the rotation speed of 300r/min and the temperature of 65 ℃ to obtain an intermediate 3, uniformly mixing the intermediate 3, polyvinyl alcohol 1000, N-dimethylformamide and methylbenzoic acid, and reacting for 6 hours at the rotation speed of 180r/min and the temperature of 115 ℃ to obtain the water-absorbent resin.
The growth microcapsule is prepared by the following steps:
step B1: uniformly mixing chitosan, methyl acrylate and methanol, carrying out reflux reaction for 45 hours at the rotation speed of 180r/min and the temperature of 73 ℃, distilling to remove the solvent, uniformly mixing the substrate, ethylenediamine and methanol, and carrying out reflux reaction for 23 hours at the rotation speed of 300r/min and the temperature of 73 ℃ to obtain modified chitosan;
step B2: propionyl brassinolide, triacontanol and dichloromethane are mixed, stirring is carried out for 1.3h under the conditions that the rotating speed is 600r/min and the temperature is 35 ℃, growth liquid is prepared, the growth liquid, gelatin liquid and modified chitosan solution are added into a stirring kettle, stirring is carried out under the conditions that the rotating speed is 300r/min until the growth liquid, the gelatin liquid and the modified chitosan solution are uniformly mixed, deionized water is added, reaction is carried out for 35min under the conditions that the temperature is 53 ℃ and the pH value is 6, then the temperature is reduced to 23 ℃, glutaraldehyde is added, reaction is carried out for 45min under the condition that the temperature is 33 ℃, filtrate is filtered and removed, and filter cakes are dried, so that the growth microcapsule is prepared.
Example 3
A plant growth regulator containing propionyl brassinolide and triacontanol is prepared by the following steps:
dispersing the growth microcapsule in deionized water, adding water-absorbing resin and 1-hydroxybenzotriazole, reacting at 25 deg.C at 200r/min for 40min, filtering to remove filtrate, and oven drying the filter cake to obtain the plant growth regulator.
The water-absorbing resin is prepared by the following steps:
step A1: uniformly mixing lactide, polyethylene glycol 2000 and toluene, introducing nitrogen for protection, stirring and adding stannous octoate under the conditions that the rotating speed is 200r/min and the temperature is 130 ℃, performing reflux reaction for 15 hours to prepare an intermediate 1, dissolving the intermediate 1 in dichloromethane, stirring and adding triethylamine and acryloyl chloride under the conditions that the rotating speed is 150r/min and the temperature is 3 ℃, reacting for 15 hours, heating to the temperature of 25 ℃, and continuing to react for 15 hours to prepare an intermediate 2;
step A2: uniformly mixing acrylic acid, sodium acrylate, 2-acrylamide-2-methylbenzenesulfonic acid, the intermediate 2 and a potassium persulfate solution, reacting for 3 hours at the rotation speed of 300r/min and the temperature of 70 ℃ to obtain an intermediate 3, uniformly mixing the intermediate 3, polyvinyl alcohol 1000, N-dimethylformamide and methylbenzoic acid, and reacting for 7 hours at the rotation speed of 200r/min and the temperature of 120 ℃ to obtain the water-absorbent resin.
The growth microcapsule is prepared by the following steps:
step B1: uniformly mixing chitosan, methyl acrylate and methanol, carrying out reflux reaction for 50 hours at the rotation speed of 200r/min and the temperature of 75 ℃, distilling to remove the solvent, uniformly mixing a substrate, ethylenediamine and methanol, and carrying out reflux reaction for 25 hours at the rotation speed of 300r/min and the temperature of 75 ℃ to obtain modified chitosan;
step B2: propionyl brassinolide, triacontanol and dichloromethane are mixed, stirring is carried out for 1.5h under the conditions that the rotating speed is 800r/min and the temperature is 40 ℃, growth liquid is prepared, growth liquid, gelatin liquid and modified chitosan solution are added into a stirring kettle, stirring is carried out under the conditions that the rotating speed is 500r/min until the growth liquid, the gelatin liquid and the modified chitosan solution are uniformly mixed, deionized water is added, reaction is carried out for 40min under the conditions that the temperature is 55 ℃ and the pH value is 6.5, then the temperature is reduced to 25 ℃, glutaraldehyde is added, reaction is carried out for 50min under the condition that the temperature is 35 ℃, filtrate is removed by filtering, and filter cakes are dried to prepare the growth microcapsule.
Comparative example 1
In comparison with example 1, this comparative example uses no water-absorbent resin and uses only a growth liquid as an auxin.
Comparative example 2
The comparative example is the auxin disclosed in Chinese patent CN 110710542A.
The plant growth regulator wheat prepared in examples 1-3 and comparative examples 1-2 was planted, fertilizer was mixed into soil before seeding, seeding was performed after one week, soil was taken every 7 days after seeding to test the water content of soil, the water amount poured every day was the same, and the results are shown in the following table;
from the above table, it can be seen that the plant growth regulator obtained in examples 1 to 3 has a good water retention effect, and the plant growth regulator can prevent water and soil loss during use, thereby ensuring that the plant can sufficiently absorb the growth regulator.
The foregoing is merely exemplary and illustrative of the principles of the present invention and various modifications, additions and substitutions of the specific embodiments described herein may be made by those skilled in the art without departing from the principles of the present invention or exceeding the scope of the claims set forth herein.
Claims (6)
1. A plant growth regulator containing propionyl brassinolide and triacontanol, which is characterized in that: the method comprises the following steps:
dispersing the growing microcapsule in deionized water, adding water-absorbing resin and 1-hydroxybenzotriazole, reacting at the rotation speed of 150-;
the water-absorbing resin is prepared by the following steps:
step A1: mixing and stirring lactide, polyethylene glycol 2000 and toluene, adding stannous octoate, carrying out reflux reaction to obtain an intermediate 1, dissolving the intermediate 1 in dichloromethane, stirring, adding triethylamine and acryloyl chloride, reacting, and heating to react to obtain an intermediate 2;
step A2: mixing acrylic acid, sodium acrylate, 2-acrylamide-2-methylbenzenesulfonic acid, the intermediate 2 and a potassium persulfate solution for reaction to prepare an intermediate 3, and mixing the intermediate 3, polyvinyl alcohol 1000, N-dimethylformamide and methylbenzoic acid for reaction to prepare the water-absorbent resin.
2. A plant growth regulator comprising propionyl brassinolide and triacontanol according to claim 1, wherein: the molar ratio of the lactide to the polyethylene glycol 2000 in the step A1 is 20:1, the dosage of the stannous octoate is 1% of the mass sum of the lactide and the polyethylene glycol 2000, and the molar ratio of the dosages of the intermediate 1, the triethylamine and the acryloyl chloride is 1:3: 5.
3. A plant growth regulator comprising propionyl brassinolide and triacontanol according to claim 1, wherein: the dosage ratio of the acrylic acid, the sodium acrylate, the 2-acrylamide-2-methylbenzenesulfonic acid and the intermediate 2 in the step A2 is 8g:5g:3g:5g, the dosage of the potassium persulfate is 0.5 percent of the total mass of reactants, and the dosage ratio of the intermediate 3 to the polyvinyl alcohol 1000 is 5: 3.
4. A plant growth regulator comprising propionyl brassinolide and triacontanol according to claim 1, wherein: the growth microcapsule is prepared by the following steps:
step B1: mixing chitosan, methyl acrylate and methanol for reflux reaction, distilling to remove a solvent, mixing a substrate, ethylenediamine and methanol for reflux reaction to prepare modified chitosan;
step B2: propionyl brassinolide, triacontanol and dichloromethane are mixed and stirred to prepare growth liquid, the growth liquid, gelatin liquid and modified chitosan solution are uniformly mixed, deionized water is added, reaction is carried out, then glutaraldehyde is added after cooling, reaction is carried out, filtrate is removed by filtration, and filter cake is dried to prepare the growth microcapsule.
5. A plant growth regulator comprising propionyl brassinolide and triacontanol according to claim 1, wherein: the dosage ratio of the chitosan, the methyl acrylate and the methanol in the step B1 is 8g:25mL:40mL, and the dosage ratio of the substrate, the ethylenediamine and the methanol is 16g:15mL:80 mL.
6. A plant growth regulator comprising propionyl brassinolide and triacontanol according to claim 1, wherein: the dosage of the propionyl brassinolide in the step B2 is 0.003 percent of the mass of the growth solution, the dosage of the triacontanol is 0.097 percent of the mass of the growth solution, the dosage ratio of the growth solution, the gelatin solution, the modified chitosan solution, the deionized water and the glutaraldehyde is 5.3g to 20mL to 18g to 120mL to 10mL, and the concentration of the modified chitosan solution is 1 g/L.
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| CN114315468A (en) * | 2022-01-19 | 2022-04-12 | 烟台众德集团有限公司 | DMAP type slow-release fertilizer and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113678831A (en) * | 2021-08-27 | 2021-11-23 | 安徽省圣丹生物化工有限公司 | Cyhalofop-butyl-containing pesticide composition and application thereof |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113678831A (en) * | 2021-08-27 | 2021-11-23 | 安徽省圣丹生物化工有限公司 | Cyhalofop-butyl-containing pesticide composition and application thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114315468A (en) * | 2022-01-19 | 2022-04-12 | 烟台众德集团有限公司 | DMAP type slow-release fertilizer and preparation method thereof |
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