CN113201282B - Humic acid type poplar flower and catkin inhibitor coating and preparation method thereof - Google Patents
Humic acid type poplar flower and catkin inhibitor coating and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
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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
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Abstract
The invention discloses a humic acid type poplar catkin inhibitor coating which comprises the following raw materials in parts by mass: 10-20 parts of humic acid, 0.1-0.5 part of sodium alginate, 0.1-0.3 part of chitosan, 5-9 parts of thickening agent and 0.3-0.5 part of nano SiO21-2 parts of an emulsifier and 5-8 parts of an adsorbent; the preparation method comprises the following steps: preparing a chitosan solution B and a humate solution C with the mass fraction of 1-5% for later use; step four: weighing 0.1-0.5 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D; step five: adding the chitosan solution B into the potassium humate solution C, adding the sodium alginate solution D after fully stirring, adding 2-6 parts of thickening agent into the mixture according to the solid-to-liquid ratio of 1 (10-30) after stirring for 1-2 h, fully stirring, adding 1-2 parts of emulsifying agent and 5-10 parts of adsorbing agent after uniformly mixing, and emulsifying for 0.5-1 h to obtain a humic acid type poplar catkin inhibitor coating; the raw materials of the invention are all natural, are environment-friendly and easily available, have low production cost and good biocompatibility.
Description
Technical Field
The invention belongs to the technical field of agricultural application, and particularly relates to a humic acid type poplar catkin inhibitor and a preparation method thereof.
Background
In spring every year, the phenomenon of flying flocs mainly occurs in more than ten provinces (autonomous regions, direct prefectures) of northern cities. The flying army is generally divided into two groups. In the middle of 4 months, poplar catkins came in, while willow catkins appeared from the bottom of 4 months to the beginning of 5 months. Populus catkin and catkin can last for about two weeks each. The catkin willow catkin also can generate a series of harm, the catkin willow catkin is easy to carry virus and germs, and various infectious diseases and allergic symptoms are easy to occur; a large amount of poplar catkins fly in the air to cause ecological pollution; the poplar catkin can shield the sight of pedestrians to cause traffic accidents and fire disasters due to the factors of light weight, low burning point and the like.
The products in the market have single effect, and the growth of the poplar and the willow is damaged and even unhealthy growth of the trees is caused by inhibiting the formation of poplar buds and willow buds by injecting a plant growth regulator into a trunk. The poplar catkin and catkin inhibitors in the market at present are mainly plant growth regulators, and although the poplar catkin inhibitors have little effect on inhibiting the poplar catkin and catkin, the defects of great harm and high cost still exist, and negative influence is caused on the ecological environment.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a preparation method of a humic acid type poplar catkin inhibitor coating, which is environment-friendly, low in cost and good in biocompatibility and catkin inhibition effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a humic acid type poplar flower and catkin inhibitor coating comprises the following raw materials in parts by mass: 10-20 parts of humic acid, 0.1-0.5 part of sodium alginate, 0.1-0.3 part of chitosan, 5-9 parts of thickening agent and 0.3-0.5 part of nano SiO21-2 parts of emulsifier and 5-8 parts of adsorbent.
Preferably, the thickener comprises one or more of carboxymethyl cellulose, ethyl cellulose, hydroxypropyl methyl cellulose, gelatin, pectin, guar gum, borax and polyvinyl alcohol.
Preferably, the emulsifier comprises: span, tween, glycerol, sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether sodium sulfate, fatty alcohol-polyoxyethylene ether ammonium sulfate, sodium lauryl sulfate, nonylphenol polyoxyethylene ether, diethanolamide stearic acid monoglyceride, lignosulfonate, heavy alkylbenzene sulfonate and fatty alcohol-polyoxyethylene ether.
Preferably, the adsorbent comprises one or more of orange peel, shaddock peel, corncob residue, silica gel powder and wheat peel.
The invention also provides a preparation method of the humic acid type poplar catkin inhibitor coating, which comprises the following steps:
the method comprises the following steps: mixing 0.3-0.5 part of nano SiO2Dispersing in 2-5% acetic acid solution to obtain solution A;
step two: weighing 0.1-0.3 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 10-20 parts of humic acid, and dissolving in a strong base solution with the pH of 11-13 to obtain a humate solution C with the mass fraction of 1% -5% for later use;
step four: weighing 0.1-0.5 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for 1-2 hours to obtain a mixed solution; dissolving 2-6 parts of thickening agent in a solvent according to a solid-to-liquid ratio of 1 (10-30), adding the thickening agent into the mixed solution, fully stirring, adding 1-2 parts of emulsifying agent and 5-10 parts of adsorbent after uniformly mixing, and emulsifying for 0.5-1 h to obtain the humic acid type poplar catkin inhibitor coating.
Preferably, the strong alkaline solution is a sodium hydroxide solution or a potassium hydroxide solution.
Preferably, the solvent of the thickener is water or glycol.
Compared with the prior art, the invention has the following technical effects:
the humic acid type poplar catkin inhibitor coating is prepared from natural raw materials, is environment-friendly and easy to obtain, and is low in production cost; the environment-friendly natural surfactant humic acid is adopted as a broad-spectrum plant growth regulator and is compounded with various plant growth regulators, so that the biological compatibility is good;
the sodium alginate used in the invention is a natural polysaccharide, has the characteristics of thickening, suspending, emulsifying, stabilizing, gel forming, film forming and fiber spinning, and can be alternately coated with chitosan to form a protective layer;
the used thickening agents are all green environment-friendly biodegradable cellulose thickening agents, so that the safety performance of the product is improved, and the product has good film forming property, air permeability and biocompatibility; the adsorbent is researched from the aspects of environmental protection and waste recycling, so that the product cost is reduced, and the performance index of the product is improved; the product is added with nano oxide, and the mechanical strength of the coating is effectively increased due to the unique physical and chemical properties of large surface area of nano particles, more surface active centers and the like.
Detailed Description
The present invention will be explained in further detail with reference to examples.
Example 1
The method comprises the following steps: 0.3 part of nano SiO2Dispersing in 10mL of 2% acetic acid solution to obtain a solution A;
step two: weighing 0.1 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 10 parts of humic acid, and dissolving in potassium hydroxide with pH of 13 to obtain a humic acid potassium solution C with mass fraction of 1% for later use;
step four: weighing 0.1 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for 1h to obtain a mixed solution; dissolving 5 parts of carboxymethyl cellulose in water according to a solid-to-liquid ratio of 1:10, adding the solution into the mixed solution, fully stirring, uniformly mixing, adding 1 part of emulsifier mixed by span and tween in a mass ratio of 1:1 and 5 parts of adsorbent coal slag, and emulsifying for 30min to obtain the humic acid type poplar catkin inhibitor coating.
Example 2
The method comprises the following steps: 0.4 part of nano SiO2Dispersing in 10mL of 2% acetic acid solution to obtain a solution A;
step two: weighing 0.1 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 15 parts of humic acid, and dissolving the humic acid in potassium hydroxide with the pH value of 13 to obtain a humic acid potassium solution C with the mass fraction of 3% for later use;
step four: weighing 0.2 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for 1h to obtain a mixed solution; dissolving 7 parts of ethyl cellulose in water according to the solid-to-liquid ratio of 1:15, adding the obtained solution into the mixed solution, fully stirring, uniformly mixing, adding 1 part of span and tween in the mass ratio of 1:2 and 6 parts of corncob residues, and emulsifying for 30min to obtain the humic acid type poplar catkin inhibitor coating.
Example 3
The method comprises the following steps: 0.5 part of nano SiO2Dispersing in 10mL of 4% acetic acid solution to obtain a solution A;
step two: weighing 0.3 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 20 parts of humic acid, and dissolving in potassium hydroxide with the pH value of 11 to obtain 5% potassium humate solution C for later use;
step four: weighing 0.5 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for 2 hours to obtain a mixed solution; dissolving 8 parts of guar gum in water according to the solid-liquid ratio of 1:10, adding the guar gum into the mixed solution, fully stirring, uniformly mixing, adding 2 parts of span, tween and sodium dodecyl sulfate in the mass ratio of 3:2:1 and 8 parts of orange peel and coal cinder in the mass ratio of 2:8, and emulsifying for 30min to obtain the humic acid type poplar catkin inhibitor coating.
Example 4
The method comprises the following steps: 0.3 part of nano SiO2Dispersing in 10mL of 3% acetic acid solution to obtain a solution A;
step two: weighing 0.2 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 18 parts of humic acid, and dissolving in sodium hydroxide with the pH value of 11 to obtain 5% sodium humate solution C for later use;
step four: weighing 0.2 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for reacting for 1.5 hours to obtain a mixed solution; dissolving 7 parts of hydroxypropyl methyl cellulose and borax in a mass ratio of 3:1 in water according to a solid-liquid ratio of 1:20, adding the mixture into the mixed solution, fully stirring, uniformly mixing, adding 1.5 parts of span, tween and sodium dodecyl benzene sulfonate in a mass ratio of 3:3:1 and 6 parts of wheat bran and coal cinder in a mass ratio of 3:7, and emulsifying for 45min to obtain the humic acid type poplar catkin inhibitor coating.
Example 5
The method comprises the following steps: 0.5 part of nano SiO2Dispersing in 10mL of 2% acetic acid solution to obtain a solution A;
step two: weighing 0.3 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 19 parts of humic acid, and dissolving in sodium hydroxide with pH of 13 to obtain a sodium humate solution C with mass fraction of 2% for later use;
step four: weighing 0.4 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for reacting for 1h to obtain a mixed solution; dissolving 7 parts of beta-cyclodextrin in ethylene glycol according to the solid-to-liquid ratio of 1:30, adding the mixture into the mixed solution, fully stirring, adding 2 parts of span, tween and 6 parts of silica gel powder according to the mass ratio of 5:3 after uniformly mixing, and emulsifying for 30min to obtain the humic acid type poplar catkin inhibitor coating.
Example 6
The method comprises the following steps: 0.5 part of nano SiO2Dispersing in 10mL of 5% acetic acid solution to obtain a solution A;
step two: weighing 0.3 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 18 parts of humic acid, and dissolving in potassium hydroxide with pH of 13 to obtain a humic acid potassium solution C with the mass fraction of 3% for later use;
step four: weighing 0.2 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for reacting for 1h to obtain a mixed solution; dissolving 9 parts of sodium carboxymethylcellulose in water according to a solid-liquid ratio of 1:10, adding the solution into the mixed solution, fully stirring, uniformly mixing, adding 2 parts of span, tween, nonylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether in a mass ratio of 1:1:1, 5 parts of orange peel and silica gel powder in a mass ratio of 3:5, and emulsifying for 30min to obtain the humic acid type poplar catkin inhibitor coating.
Example 7
The method comprises the following steps: 0.4 part of nano SiO2Dispersing in 10mL of 2% acetic acid solution to obtain a solution A;
step two: weighing 0.1 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 17 parts of humic acid, and dissolving in potassium hydroxide with the pH value of 12 to obtain a humic acid potassium solution C with the mass fraction of 3% for later use;
step four: weighing 0.4 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for reacting for 2 hours to obtain a mixed solution; dissolving 5 parts of polyvinyl alcohol in water according to the solid-to-liquid ratio of 1:20, adding the solution into the mixed solution, fully stirring, uniformly mixing, adding 2 parts of nonylphenol polyoxyethylene ether and diethanolamide stearic acid monoglyceride in the mass ratio of 3:2 and 8 parts of coal cinder and silica gel powder in the mass ratio of 4:3, and emulsifying for 1 hour to obtain the humic acid type poplar catkin inhibitor coating.
Example 8
The method comprises the following steps: 0.3 part of nano SiO2Dispersing in 10mL of 3% acetic acid solution to obtain a solution A;
step two: weighing 0.2 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 13 parts of humic acid, and dissolving in potassium hydroxide with the pH value of 12 to obtain a humic acid potassium solution C with the mass fraction of 4% for later use;
step four: weighing 0.4 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the potassium humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for reacting for 2 hours to obtain a mixed solution; dissolving 6 parts of hydroxypropyl methyl cellulose in water at a solid-liquid ratio of 1:10, adding the mixture into the mixed solution, fully stirring, uniformly mixing, adding 2 parts of span and tween at a mass ratio of 5:2 and 7 parts of wheat bran, silica gel powder and coal cinder at a mass ratio of 2:3:3, and emulsifying for 1h to obtain the humic acid type poplar catkin inhibitor coating.
The humic acid type poplar and willow catkin inhibitor coating prepared in the examples 1 to 8 and a commercial inhibitor (paclobutrazol) are respectively treated according to the same treatment mode, and the comparison results are as follows:
spraying the poplar with a high-pressure sprayer, testing the poplar forest base of elm forest in Shaanxi, analyzing and discussing the test result by a statistical method, wherein the result is as follows:
TABLE 1
As can be seen from the data in Table 1, there is a clear difference between before and after treatment, and there are two reasons for the decrease of poplar catkins after three weeks as a contrast before treatment, on one hand, the natural environmental factors cause the natural decrease of poplar catkins, and on the other hand, the product performs the natural degradation. Therefore, the product of the invention can effectively inhibit the generation of catkin aiming at poplar flowers and willow catkins.
It should be noted that the above examples do not include all embodiments of the present invention, and besides the preparation methods given in the above examples, the thickening agents, emulsifiers and adsorbents can be other combinations within the scope of the technical solution, and any modification or equivalent replacement by those skilled in the art without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present application.
Claims (6)
1. The humic acid type poplar flower and catkin inhibitor coating is characterized by comprising the following raw materials in parts by mass: 10-20 parts of humic acid, 0.1-0.5 part of sodium alginate, 0.1-0.3 part of chitosan, 5-9 parts of thickening agent and 0.3-0.5 part of nano SiO21-2 parts of an emulsifier and 5-8 parts of an adsorbent; the thickening agent comprises one or more of carboxymethyl cellulose, ethyl cellulose, hydroxypropyl methyl cellulose, gelatin, pectin, guar gum and polyvinyl alcohol;
the humic acid type poplar catkin inhibitor coating is prepared by the following steps:
the method comprises the following steps: mixing 0.3-0.5 part of nano SiO2Dispersing in 2-5% acetic acid solution to obtain solution A;
step two: weighing 0.1-0.3 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 10-20 parts of humic acid, and dissolving in a strong base solution with the pH value of 11-13 to obtain a humate solution C with the mass fraction of 1-5% for later use;
step four: weighing 0.1-0.5 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for 1-2 hours to obtain a mixed solution; dissolving 2-6 parts of thickening agent in a solvent according to a solid-to-liquid ratio of 1 (10-30), adding the mixture into the mixed solution, fully stirring, adding 1-2 parts of emulsifying agent and 5-10 parts of adsorbent after uniformly mixing, and emulsifying for 0.5-1 h to obtain the humic acid type poplar catkin inhibitor coating.
2. The humic-type poplar catkin inhibitor coating of claim 1, wherein said emulsifier comprises: span, tween, glycerol, sodium dodecyl benzene sulfonate, fatty alcohol-polyoxyethylene ether sodium sulfate, fatty alcohol-polyoxyethylene ether ammonium sulfate, sodium lauryl sulfate, nonylphenol polyoxyethylene ether, diethanolamide stearic acid monoglyceride, lignosulfonate, heavy alkylbenzene sulfonate and fatty alcohol-polyoxyethylene ether.
3. The humic acid type poplar catkin inhibitor coating of claim 1, wherein the adsorbent comprises one or more of orange peel, shaddock peel, corncob residue, silica gel powder and wheat peel.
4. A method for preparing a humic acid type poplar catkin inhibitor coating according to any one of claims 1 to 3, which comprises the following steps:
the method comprises the following steps: mixing 0.3-0.5 part of nano SiO2Dispersing in 2-5% acetic acid solution to obtain solution A;
step two: weighing 0.1-0.3 part of chitosan, and dissolving in the solution A to obtain a chitosan solution B;
step three: weighing 10-20 parts of humic acid, and dissolving in a strong base solution with the pH value of 11-13 to obtain a humate solution C with the mass fraction of 1-5% for later use;
step four: weighing 0.1-0.5 part of sodium alginate, and dissolving in hot water at 60 ℃ to obtain a solution D;
step five: adding the chitosan solution B into the humate solution C, fully stirring, adding the sodium alginate solution D, and stirring for 1-2 hours to obtain a mixed solution; dissolving 2-6 parts of thickening agent in a solvent according to a solid-to-liquid ratio of 1 (10-30), adding the mixture into the mixed solution, fully stirring, adding 1-2 parts of emulsifying agent and 5-10 parts of adsorbent after uniformly mixing, and emulsifying for 0.5-1 h to obtain the humic acid type poplar catkin inhibitor coating.
5. The method for preparing the humic acid type poplar catkin inhibitor coating according to claim 4, wherein the strong alkaline solution is sodium hydroxide solution or potassium hydroxide solution.
6. The method for preparing the humic acid type poplar catkin inhibitor coating according to claim 4, wherein the solvent of the thickener is water or glycol.
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