CN114431254A - Fruit tree antifreezing film agent containing potassium humate and preparation method thereof - Google Patents
Fruit tree antifreezing film agent containing potassium humate and preparation method thereof Download PDFInfo
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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
- A01N61/00—Biocides, pest repellants or attractants, or plant growth regulators containing substances of unknown or undetermined composition, e.g. substances characterised only by the mode of action
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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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- 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
- A01N43/14—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 six-membered rings
- A01N43/16—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 six-membered rings with oxygen as the ring hetero atom
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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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic 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
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/16—Heavy metals; Compounds thereof
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/50—Surfactants; Emulsifiers
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
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Abstract
The invention relates to a fruit tree anti-freezing film agent containing potassium humate and a preparation method thereof, wherein the raw materials of the anti-freezing film agent comprise 0.5-1.5 parts of potassium humate, 1-6 parts of an anti-freezing substance, 0.5-5 parts of a surfactant, 0.2-1.2 parts of a nano oxide, 10-30 parts of an alcohol substance, 3-10 parts of a saccharide substance, 1-10 parts of trace elements, 10-30 parts of phosphate, 0.5-1.2 parts of edible oil and 500 parts of deionized water. When in preparation, the dispersion liquid of the nano oxide is evenly mixed with the aqueous solution of the surfactant; adding an antifreeze substance, an alcohol substance, a saccharide substance, a trace element, phosphate and edible oil into the aqueous solution of the potassium humate, and uniformly mixing; and uniformly mixing the two parts of mixed solution to obtain the fruit tree antifreezing film agent containing potassium humate. The invention can obviously improve the water retention and frost resistance of fruit trees and has the functions of promoting the growth of the fruit trees, preventing insects and sterilizing.
Description
Technical Field
The invention belongs to the field of fruit tree antifreezing film agents, and particularly relates to a fruit tree antifreezing film agent containing potassium humate and a preparation method thereof.
Background
The term "late spring cold" refers to a weather phenomenon in which the average air temperature is lowered to a level lower than that in the same year and lasts for a period of time due to the influence of frequently cold air in the south of the north or continuous overcast and rainy weather in the south of the north in the spring (3-5 months) in China. The late spring cold generally brings serious threats to the growth and production of fruit trees, and causes frost damage to branches or flower buds, such as bark frost damage, branch drying, freeze death or incomplete development of tender leaves and flower buds and the like. The mild case will cause the reduction of yield, the severe case will cause the extinction, and the fruit setting rate will be directly affected. The late spring cold has damage to all fruit trees, especially to early-flowering fruit trees such as apricot, peach, cherry, apple, pear and the like.
In order to prevent the damage of low temperature to fruit trees, the existing anti-freezing measures can be roughly divided into two types: one is to adopt physical means to raise the environmental temperature for the fruit trees; the other is the use of antifreeze. The existing physical means for prevention and treatment has high cost and consumes more manpower; the anti-freezing effect of the existing anti-freezing film agent on the market is very little or the temperature is too low, so that the anti-freezing effect cannot be achieved.
Disclosure of Invention
In order to solve the problems of the prior antifreezing technology, the invention provides a fruit tree antifreezing film agent containing potassium humate and a preparation method thereof, which can obviously improve the water retention and antifreezing capacity of fruit trees and have the functions of promoting the growth of fruit trees, preventing insects and sterilizing.
In order to achieve the purpose, the invention provides the following technical scheme:
the fruit tree anti-freezing film agent containing potassium humate comprises, by mass, 0.5-1.5 parts of potassium humate, 1-6 parts of an anti-freezing substance, 0.5-5 parts of a surfactant, 0.2-1.2 parts of a nano oxide, 10-30 parts of an alcohol substance, 3-10 parts of a saccharide substance, 1-10 parts of a trace element, 10-30 parts of a phosphate, 0.5-1.2 parts of edible oil and 500 parts of deionized water;
the antifreeze substance is one or more of sodium alginate, carboxymethyl cellulose, hydroxypropyl cellulose and guar gum, and the trace element is one or more of magnesium chloride, calcium chloride, ferric chloride and zinc chloride.
Preferably, the surfactant is one or more of alkylphenol polyoxypropylene ether, sodium dodecyl benzene sulfonate, coconut oil fatty acid diethanolamide, sorbitan fatty acid ester of sorbitan laurate and polyoxyethylene sorbitan monolaurate.
Preferably, the alcohol is one or more of glycerol, ethylene glycol and polyethylene glycol.
Preferably, the nano oxide is nano silicon dioxide, nano titanium dioxide or a mixture of nano silicon dioxide and nano titanium dioxide.
Preferably, the saccharide is one or more of starch, sucrose, chitosan and glucose.
Preferably, the phosphate is one or more of potassium dihydrogen phosphate, sodium tripolyphosphate and sodium hexametaphosphate.
Preferably, the edible oil is one or more of rapeseed oil, peanut oil, hemp seed oil, corn oil and olive oil.
The preparation method of any one of the fruit tree antifreezing film agents containing potassium humate comprises the following steps:
step 1, preparing a mixed solution A and a mixed solution B by using 500 parts of deionized water in total by adopting the following process:
adding 0.2-1.2 parts of dispersion liquid formed by nano oxide and deionized water into 0.5-5 parts of aqueous solution formed by surfactant and deionized water, and uniformly mixing to form mixed solution A;
adding 1-6 parts of an anti-freezing substance into 0.5-1.5 parts of a potassium humate aqueous solution, uniformly mixing, then adding 10-30 parts of an alcohol substance, 3-10 parts of a saccharide substance, 1-10 parts of trace elements, 10-30 parts of phosphate and 0.5-1.2 parts of edible oil, and uniformly mixing to form a mixed solution B;
and 2, uniformly mixing the mixed solution A and the mixed solution B to obtain the fruit tree antifreezing film agent containing potassium humate.
Further, in the step 1, under the conditions that the frequency is 40-60Hz and the temperature is 25-35 ℃, the nano oxide is subjected to ultrasonic treatment in deionized water for 15-30min to form the dispersion liquid.
Still further, in step 1, the total amount of deionized water is 100 parts when forming the mixed solution a.
Compared with the prior art, the invention has the following beneficial technical effects:
the fruit tree antifreezing film agent containing potassium humate of the invention takes potassium humate, antifreezing substances and alcohols as main raw materials, can obviously improve the water retention and antifreezing capacity of fruit trees, and has the functions of promoting the growth of fruit trees, preventing insects and sterilizing. The potassium humate has the functions of insect prevention and bacteria resistance, has the synergistic effect with the nano oxide, kills worm eggs in the trunk, can be chelated with trace elements, is fully absorbed by the fruit trees, and improves the immunity of the fruit trees; wherein, the antifreeze substance (such as sodium alginate) has strong hydration because of being hydrophilic macromolecule, so that the antifreeze substance is difficult to generate ice crystal by adsorbing the moisture of the film agent and interacts with the alcohol substance, thereby greatly improving the antifreeze capacity of the fruit tree; the surfactant is used for increasing the adhesiveness of the film and enabling the film to be better adhered to the surface of a fruit tree; the phosphate is used for supplementing the necessary phosphorus element for fruit trees; the saccharide substances are tightly wrapped by the formed film, and the potassium humate can increase the permeability of the cell membrane of the fruit tree, so that the fruit tree can fully absorb nutrient substances in the anti-freezing film agent, the fruit tree transformation degree is improved, the bud body is full, the biological enzyme is activated, and the water retention capacity of the plant is enhanced; the edible oil can be used as a thickening agent to increase the adhesive force of the film to the trunk, thereby fundamentally solving the problem that fruit trees are frozen.
According to the preparation method of the fruit tree antifreezing film agent containing potassium humate, when the mixed solution A is prepared, the surfactant is added into deionized water, and then the nano oxide is added, so that the nano oxide is dispersed more uniformly; when the mixed solution B is prepared, the antifreeze substance is added into the aqueous solution of the potassium humate and is uniformly mixed, and then the alcohol substance, the carbohydrate substance, the trace elements, the phosphate and the edible oil are sequentially added, so that the insoluble flocculation and precipitation can be avoided. Simple operation, low equipment requirement, environmental protection and suitability for industrial scale-up production. The fruit tree antifreezing film agent containing potassium humate prepared by the invention has no side effect on fruit trees and environment, and can also provide nutrition for fruit trees after falling off on soil after being prevented from freezing. The fruit tree antifreezing film agent can be sprayed on apple, kiwi fruit, peach, apricot or cherry fruit trees 3-5 days before cold tide comes, so as to achieve antifreezing effect.
Detailed Description
The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
The fruit tree antifreezing film agent containing potassium humate comprises, by mass, 0.5-1.5 parts of potassium humate, 1-6 parts of an antifreezing substance, 0.5-5 parts of a surfactant, 0.2-1.2 parts of a nano oxide, 10-30 parts of an alcohol substance, 3-10 parts of a saccharide substance, 1-10 parts of a trace element, 10-30 parts of a phosphate, 0.5-1.2 parts of edible oil and 500 parts of water.
The antifreeze substance is one or more of sodium alginate, carboxymethyl cellulose, hydroxypropyl cellulose and guar gum.
The surfactant is one or more of alkylphenol polyoxypropylene ether, sodium dodecyl benzene sulfonate, coconut oil fatty acid diethanolamide, sorbitan laurate fatty acid ester and polyoxyethylene sorbitan monolaurate, and the polymerization degree of the polyoxyethylene sorbitan monolaurate is 20.
The nano oxide is nano silicon dioxide, nano titanium dioxide or a mixture of the nano silicon dioxide and the nano titanium dioxide.
The alcohol substance is one or more of glycerol, glycol and polyethylene glycol, and the molecular weight of the polyethylene glycol in the invention is 200-600.
The saccharide is one or more of starch, sucrose, chitosan and glucose.
The microelements are one or more of magnesium chloride, calcium chloride, ferric chloride and zinc chloride.
The phosphate is one or more of potassium dihydrogen phosphate, sodium tripolyphosphate and sodium hexametaphosphate.
The edible oil is one or more of oleum Rapae, oleum Arachidis Hypogaeae, oleum Sesami, oleum Maydis and oleum Olivarum.
The invention relates to a preparation method of a humic acid-containing insect-proof and antibacterial fruit tree antifreezing film agent, which specifically comprises the following steps:
1) adding 0.5-5 parts of surfactant into 90 parts of deionized water, fully stirring to form a solution, then ultrasonically dispersing 0.2-1.2 parts of nano oxide into 10 parts of deionized water, adding the solution, controlling the ultrasonic treatment frequency at 40-60Hz, the treatment time at 15-30min, controlling the temperature at 25-35 ℃, and fully stirring for 15-30min to form a mixed solution A.
2) Adding 400 parts of deionized water into a stirring kettle for heating, controlling the temperature of water to be 55-65 ℃, closing a heating device, adding 0.5-1.5 parts of potassium humate solid, slowly adding 1-6 parts of antifreeze substance when the potassium humate solid is completely dissolved, and fully and uniformly stirring to form uniform aqueous solution.
3) Sequentially adding 10-30 parts of alcohol substances, 3-10 parts of sugar substances, 1-10 parts of trace elements, 10-30 parts of phosphate and 0.5-1.2 parts of edible oil into the aqueous solution obtained in the step 2), stirring for 1-2h at the rotating speed of the stirring kettle of 100-200r/min until the solution in the stirring kettle is completely and uniformly mixed to form a mixed solution B.
4) And adding the mixed solution A into the mixed solution B, and completely and uniformly stirring to form the fruit tree anti-freezing film agent.
Embodiment 1 the preparation method of the insect-proofing and antibacterial fruit tree film agent containing humic acid, disclosed by the invention, specifically comprises the following steps:
1) adding 2.5 parts of sodium dodecyl benzene sulfonate into 90 parts of deionized water, fully stirring to form a solution, carrying out ultrasonic treatment at the frequency of 40Hz for 20min at the temperature of 25 ℃, ultrasonically dispersing 1.0 part of nano silicon dioxide into 10 parts of deionized water, adding the solution into the solution, and fully stirring for 15min to form a mixed solution A.
2) Adding 400 parts of water into a stirring kettle for heating, controlling the rotating speed of a stirrer at 100r/min, controlling the temperature of the water at 55 ℃, closing a heating device, adding 1.0 part of potassium humate solid until the potassium humate solid is completely dissolved, slowly adding 4 parts of sodium alginate, and fully and uniformly stirring to form a uniform antifreeze substance aqueous solution.
3) Sequentially adding 14 parts of glycerol, 7 parts of glucose, 2 parts of calcium chloride, 2 parts of magnesium chloride, 2 parts of ferric chloride, 2 parts of zinc chloride, 20 parts of monopotassium phosphate and 1.0 part of rapeseed oil into the antifreeze substance water solution, and stirring for 1h until the solution in the stirring kettle is completely and uniformly mixed to form a mixed solution B.
4) And adding the mixed solution A into the mixed solution B, and completely and uniformly stirring to form the fruit tree anti-freezing film agent.
The antifreezing film agent is sprayed on fruit trees to achieve the aim of preventing freezing.
Example 2
1) Adding 4 parts of polyoxyethylene sorbitan monolaurate into 90 parts of deionized water, fully stirring to form a solution, carrying out ultrasonic treatment at the frequency of 40Hz for 15min at the temperature of 25 ℃, then ultrasonically dispersing 0.5 part of nano titanium dioxide into 10 parts of deionized water, adding the solution into the deionized water, and fully stirring for 30 minutes to form a mixed solution A.
2) Adding 400 parts of water into a stirring kettle for heating, controlling the rotating speed of a stirrer at 150r/min, controlling the temperature of the water at 65 ℃, closing a heating device, adding 1.2 parts of potassium humate solid, slowly adding 3 parts of sodium alginate and 3 parts of carboxymethyl cellulose until the potassium humate solid is completely dissolved, and fully and uniformly stirring to form a uniform antifreeze substance aqueous solution.
3) Sequentially adding 10 parts of ethylene glycol, 3 parts of chitosan, 3 parts of calcium chloride, 2 parts of magnesium chloride, 3 parts of ferric chloride, 2 parts of zinc chloride, 10 parts of monopotassium phosphate and 0.5 part of peanut oil into the antifreeze substance water solution, and stirring for 2 hours until the solution in the stirring kettle is completely and uniformly mixed to form a mixed solution B.
4) And adding the mixed solution A into the mixed solution B, and completely and uniformly stirring to form the fruit tree anti-freezing film agent.
The antifreezing film agent is sprayed on fruit trees to achieve the aim of preventing freezing.
Example 3
1) Adding 2 parts of coconut oil fatty acid diethanolamide and 2 parts of sorbitan fatty acid ester of sorbitan laurate to 90 parts of deionized water, fully stirring to form a solution, carrying out ultrasonic treatment at the frequency of 40Hz for 30min at the temperature of 25 ℃, ultrasonically dispersing 1.2 parts of nano silicon dioxide in 10 parts of deionized water, adding the solution, and fully stirring for 18 minutes to form a mixed solution A.
2) Adding 400 parts of water into a stirring kettle for heating, controlling the rotating speed of a stirrer at 200r/min, controlling the temperature of the water at 60 ℃, closing a heating device, adding 1.5 parts of potassium humate solid, slowly adding 2 parts of sodium alginate, 2 parts of hydroxypropyl cellulose and 2 parts of guar gum when the potassium humate solid is completely dissolved, and fully and uniformly stirring to form a uniform anti-freezing substance aqueous solution.
3) Sequentially adding 20 parts of glycerol, 10 parts of ethylene glycol, 5 parts of glucose, 5 parts of chitosan, 1 part of calcium chloride, 1 part of magnesium chloride, 1 part of ferric chloride, 1 part of zinc chloride, 10 parts of potassium dihydrogen phosphate, 10 parts of sodium hexametaphosphate and 1.2 parts of corn oil into an antifreeze substance aqueous solution, and stirring for 1.5 hours until the solution in a stirring kettle is completely and uniformly mixed to form a mixed solution B.
4) And adding the mixed solution A into the mixed solution B, and completely and uniformly stirring to form the fruit tree anti-freezing film agent.
The antifreezing film agent is sprayed on fruit trees to achieve the aim of preventing freezing.
Example 4
1) Adding 2 parts of sodium dodecyl benzene sulfonate into 90 parts of deionized water, fully stirring to form a solution, carrying out ultrasonic treatment at the frequency of 40Hz for 20min at the temperature of 25 ℃, then ultrasonically dispersing 0.4 part of nano silicon dioxide into 10 parts of deionized water, adding the solution into the solution, and fully stirring for 20min to form a mixed solution A.
2) Adding 400 parts of water into a stirring kettle for heating, controlling the rotating speed of a stirrer at 180r/min, controlling the temperature of the water at 65 ℃, closing a heating device, adding 0.8 part of potassium humate solid, slowly adding 3 parts of sodium alginate and 2 parts of guar gum when the potassium humate solid is completely dissolved, and fully and uniformly stirring to form a uniform antifreeze substance aqueous solution.
3) Sequentially adding 14 parts of polyethylene glycol, 6 parts of glucose, 2 parts of calcium chloride, 2 parts of magnesium chloride, 2 parts of ferric chloride, 2 parts of zinc chloride, 15 parts of monopotassium phosphate, 0.5 part of rapeseed oil and 0.5 part of olive oil into the antifreeze substance aqueous solution, and stirring for 1h until the solution in the stirring kettle is completely and uniformly mixed to form a mixed solution B.
4) And adding the mixed solution A into the mixed solution B, and completely and uniformly stirring to form the fruit tree anti-freezing film agent.
The antifreezing film agent is sprayed on fruit trees to achieve the aim of preventing freezing.
The experimental design was as follows:
the experimental site: shanxi Mei county, Kiwi berry.
The experimental method comprises the following steps: and selecting a kiwi fruit orchard demonstration garden to carry out artificial pollination. Spraying the product prepared in the embodiment on two fruit trees respectively; meanwhile, a blank group is set, and the treatment of an anti-freezing film agent is not needed. Under the condition that the temperature is-5-12 ℃, experiments of different anti-freezing film agents on flower and fruit dropping conditions of the kiwi fruits are researched.
Fruit setting rate × (total fruit set/total pollination ×)
In the formula, the total number of fruit setting refers to the total number of fruit in which the ovary normally grows after pollination. The total number of pollinations means the total number of pollinations performed manually on female flowers. The more fruit setting, the higher the fruit setting rate, and conversely, the lower the fruit setting rate. The flower and fruit dropping rate is (total number of pollinations-total number of fruits set)/total number of pollinations multiplied by 100%, and the flower and fruit dropping refers to the phenomenon that young fruits of female flowers drop due to late spring coldness.
The results are shown in the table:
| group of | Fruit set rate/%) | Flower and fruit drop rate/%) |
| Example 1 | 90 | 10 |
| Example 2 | 86 | 14 |
| Example 3 | 91 | 9 |
| Example 4 | 88 | 12 |
| Blank group | 39 | 61 |
According to the results of test experiments, the anti-freezing film agent prepared by the invention can obviously reduce the flower and fruit dropping of the kiwi fruits caused by late spring coldness. The fruit setting rate is obviously improved. Therefore, the invention can play a good antifreezing role and promote the growth of fruit trees.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications made by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. The fruit tree anti-freezing film agent containing potassium humate is characterized in that raw materials of the fruit tree anti-freezing film agent comprise, by mass, 0.5-1.5 parts of potassium humate, 1-6 parts of anti-freezing substances, 0.5-5 parts of surfactants, 0.2-1.2 parts of nano oxides, 10-30 parts of alcohol substances, 3-10 parts of sugar substances, 1-10 parts of trace elements, 10-30 parts of phosphates, 0.5-1.2 parts of edible oil and 500 parts of deionized water;
the antifreeze substance is one or more of sodium alginate, carboxymethyl cellulose, hydroxypropyl cellulose and guar gum, and the trace element is one or more of magnesium chloride, calcium chloride, ferric chloride and zinc chloride.
2. The fruit tree antifreezing film agent containing potassium humate as defined in claim 1, wherein the surfactant is one or more of alkylphenol polyoxypropylene ether, sodium dodecylbenzenesulfonate, coconut oil fatty acid diethanolamide, sorbitol laurate sorbitan fatty acid ester and polyoxyethylene sorbitan monolaurate.
3. The fruit tree antifreezing film agent containing potassium humate as defined in claim 1, wherein the alcohol is one or more of glycerol, ethylene glycol and polyethylene glycol.
4. The fruit tree antifreezing film agent containing potassium humate as defined in claim 1, wherein the nano oxide is nano silicon dioxide, nano titanium dioxide or a mixture of nano silicon dioxide and nano titanium dioxide.
5. The fruit tree antifreezing film agent containing potassium humate as defined in claim 1, wherein the sugar is one or more of starch, sucrose, chitosan and glucose.
6. The fruit tree antifreezing film agent containing potassium humate as defined in claim 1, wherein the phosphate is one or more of potassium dihydrogen phosphate, sodium tripolyphosphate and sodium hexametaphosphate.
7. The fruit tree antifreezing film agent containing potassium humate as defined in claim 1, wherein the edible oil is one or more of rapeseed oil, peanut oil, hemp oil, corn oil and olive oil.
8. The preparation method of the fruit tree antifreezing film agent containing potassium humate as defined in any one of claims 1 to 7, comprising the following steps:
step 1, preparing a mixed solution A and a mixed solution B by using 500 parts of deionized water in total by adopting the following process:
adding 0.2-1.2 parts of dispersion liquid formed by nano oxide and deionized water into 0.5-5 parts of aqueous solution formed by surfactant and deionized water, and uniformly mixing to form mixed solution A;
adding 1-6 parts of an anti-freezing substance into 0.5-1.5 parts of a potassium humate aqueous solution, uniformly mixing, then adding 10-30 parts of an alcohol substance, 3-10 parts of a saccharide substance, 1-10 parts of trace elements, 10-30 parts of phosphate and 0.5-1.2 parts of edible oil, and uniformly mixing to form a mixed solution B;
and 2, uniformly mixing the mixed solution A and the mixed solution B to obtain the fruit tree antifreezing film agent containing potassium humate.
9. The preparation method of the fruit tree antifreezing film agent containing potassium humate as defined in claim 8, wherein in the step 1, the nano-oxide is ultrasonically treated in the deionized water for 15-30min at a frequency of 40-60Hz and a temperature of 25-35 ℃ to form the dispersion liquid.
10. The method for preparing the fruit tree antifreezing film agent containing potassium humate as defined in claim 8, wherein the total amount of the deionized water in the step 1 is 100 parts when the mixed solution A is formed.
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| CN202210101479.2A Pending CN114431254A (en) | 2022-01-27 | 2022-01-27 | Fruit tree antifreezing film agent containing potassium humate and preparation method thereof |
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