Slow-release flocculation-inhibiting nutrient solution and preparation method thereof

Abstract

The invention discloses a slow-release type floc-inhibiting nutrient solution and a preparation method thereof, and relates to the technical field of fly floc treatment, the slow-release type floc-inhibiting nutrient solution comprises the following main synthetic materials: gibberellic acid, compound nitrophenol, a salicylic acid derivative, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, ethanol and pure water. The nutrient solution has the advantages that the attapulgite is added into the nutrient solution, moisture retention and adsorption and slow release effects of active components can be realized by utilizing moisture absorption and adsorbability of the attapulgite, and meanwhile, the effect that the active components in the nutrient solution can continuously regulate poplar and willow for a long time is improved; the attapulgite mineral can be used as a silicon fertilizer to improve the lodging resistance of tree bodies, branches and leaves, reduce diseases and insect pests and reduce the maintenance cost of poplar and willow trees, and the solvent dosage can be effectively reduced through the adsorption performance of the attapulgite.

Description

Technical Field

[0001] The invention relates to the technical field of flying catkins treatment, in particular to a slow-release flocculant-inhibiting nutrient solution and a preparation method thereof. Background Art

[0002] Willows and sycamores have large, dense leaves and strong shading ability. They can provide good shade and reduce the temperature in the hot summer, and shed their leaves in the cold winter without blocking the sunlight. Therefore, willows are widely planted in northern Chinese cities, and sycamores are widely planted in cities from the Yangtze River to the Yellow River in China. As a result, urban residents often suffer from the flying hairs and catkins produced by willows and sycamores every spring. Willow catkins are accessories to the seeds of poplar and willow plants, which help the seeds spread by wind. Because poplars and willows have chosen to use wind as a medium to reproduce during evolution, their seeds are very small. Taking poplar as an example, the number of seeds per kilogram is as high as 2.1 million, and the probability of natural reproduction of its seeds is extremely small. It can only exchange a large number of seeds for a small number of survival opportunities. For example, the average seed production of a single poplar plant is as high as 150 million seeds. In addition, the catkins of willow seeds are very developed, about 5 times the length of the seeds and 10 to 20 times the width, so each adult willow tree will form a large number of flying catkins. The harm of flying catkins is mainly manifested in three aspects: First, flying catkins can easily carry pollutant particles, heavy metals and other harmful substances, which can easily cause discomfort or even inflammation after contact with the skin of citizens, leading to skin allergies in people with allergies. At the same time, flying catkins can easily be inhaled into the nostrils, aggravating respiratory diseases such as asthma and chronic bronchitis, causing harm to the health of citizens. Second, flying catkins often clog the radiator fins of automobiles, causing them to stall, and also block the sight of pedestrians and vehicles, affecting traffic safety and public safety. Third, flying catkins can easily cause fires when they come into contact with open flames, posing a hidden danger to public safety; At present, the existing technical means usually adopt the method of physical flying catkin collection and artificial water agent flocculant reduction. Although there are various types of injectable flocculants on the market, it is difficult to preserve flocculant products for a long time due to the low solubility and easy decomposition and inactivation of the active components. The active components are injected into the tree body in a one-time delivery manner, and it is difficult to ensure its long-term effectiveness after diffusion and delivery. In addition, due to the accelerated plant growth and germination process, especially at low ambient temperatures, the internal nutrients of the plant are difficult to be effectively transported to the growth part, resulting in insufficient nutrient supply. For this reason, we propose a slow-release flocculant nutrient solution and a preparation method thereof. Summary of the invention

[0003] The object of the present invention is to provide a slow-release flocculant-inhibiting nutrient solution and a preparation method thereof.

[0004] In order to solve the problems raised in the above background technology, the present invention provides the following technical solutions: a method for preparing a slow-release flocculation-inhibiting nutrient solution, wherein the main synthetic materials of the slow-release flocculation-inhibiting nutrient solution include gibberellic acid, complex nitrophenol, salicylic acid derivatives, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, ethanol and pure water, and the specific operating steps of the slow-release flocculation-inhibiting nutrient solution are as follows: Step 1, preparing an alcohol agent, adding gibberellic acid, salicylic acid derivatives and octylphenol polyoxyethylene ether into a conical flask according to a ratio, and adding anhydrous ethanol at a temperature of 20°C-30°C to stir and mix until the powder in the conical flask is completely dissolved and the solution is uniform, and after stirring, the alcohol agent is prepared, and it is placed in a brown glass bottle and stored away from light for later use; Step 2: prepare a solid phase loading agent. Add attapulgite and glucose into a round-bottom beaker according to the ratio, add pure water and stir and mix at 20°C-25°C to obtain a suspension. Put the suspension into an ultrasonic cleaner for ultrasonic dispersion for 30min-60min. After the dispersion is completed, put it into a clean glass bottle, seal it and let it stand for 1d-2d, and take the upper layer of unprecipitated suspension for later use.

[0005] Step 3, preparing a corrosion inhibitor precursor, adding complex nitrophenol, glucose and magnesium ammonium phosphate into a conical flask, and adding the upper unprecipitated suspension obtained in step 3 thereto to mix, stirring it at a temperature of 20°C-30°C, stirring it fully until the powder is completely dissolved to prepare a corrosion inhibitor precursor, and storing it in a glass bottle for later use; Step 4: prepare a humic acid solution. Pour pure water into a clean glass beaker, slowly add humic acid powder, stir while adding, stir at 25°C for 1-2h, and transfer it into a filter for filtering. After filtering out the undissolved humic acid, a soluble humic acid solution is obtained, which is placed in a glass bottle and sealed for storage; Step 5: Prepare the finished nutrient solution. Add the corrosion inhibitor precursor and humic acid solution to a magnetic stirrer according to the ratio of the effective ingredients, stir and mix, then add the corresponding proportion of alcohol agent dropwise, stir and mix at a temperature of 25°C-35°C, and dilute with pure water to a predetermined concentration. After stirring, the finished nutrient solution is obtained, which is placed in a glass bottle for storage; Step 6: Inject nutrient solution. The steps for injecting nutrient solution are as follows: Estimate the total amount of medicine used, prepare the nutrient solution based on the total amount of medicine used, measure the diameter at breast height of the trees to be treated, and determine the amount of nutrient solution required for each tree, then drill holes in the trees and determine the amount of medicine to be injected in each hole. After completion, inject the trees with nutrient solution.

[0006] As a further embodiment of the present invention: the proportions of gibberellic acid, complex nitrophenol, salicylic acid derivatives, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, anhydrous ethanol and pure water are as follows: Gibberellic acid——————0.01%-0.03% Compound nitrophenol————0.003%-0.01% Salicylic acid derivatives——0.005%-0.01% Octylphenol polyoxyethylene ether—0.2%-5% Soluble humic acid——0.02%-0.05% Glucose——————0.01%-0.5% Magnesium ammonium phosphate————0.01%-0.02% Attapulgite - 2% - 3% Anhydrous ethanol————15%-35% Pure water——————60%-80% The above pure water ratio is the sum of pure water used in all steps.

[0007] As a further solution of the present invention: in the step 1, the stirring rate during stirring and mixing is controlled between 300 r / min-400 r / min, and the stirring time is controlled between 30 min-60 min.

[0008] As a further solution of the present invention: in the step 2, the stirring rate during stirring and mixing is controlled between 250r / min-300r / min, the stirring time is controlled between 45min-60min, and the power of the ultrasonic cleaning machine is between 200W-450W.

[0009] As a further solution of the present invention: in the step three, the mixed solution is stirred using a magnetic stirrer, and the stirring rate is controlled between 300 r / min-350 r / min.

[0010] As a further solution of the present invention: in the step 4, the stirring rate during stirring and mixing is controlled between 250r / min-300r / min, the stirring time is controlled between 10min-25min, and the filtered humic acid solution and pure water are diluted in a ratio of 1:2.

[0011] As a further solution of the present invention: in the step five, the stirring rate of the aqueous solution and the suspending agent during stirring and mixing needs to be controlled between 280r / min-350r / min, and the stirring and mixing rate of the mixed solution of the aqueous solution and the suspending agent and the alcohol agent needs to be controlled between 300r / min-450r / min.

[0012] As a further solution of the present invention: in step six, the nutrient solution is injected from 45 days before the poplar and willow hair and catkins fly to 45 days after the start of hair and catkins fly, and the injection is performed once a year. After the injection is completed, the flying of the poplar and willow hair and catkins is monitored.

[0013] A slow-release flocculant-inhibiting nutrient solution, the raw materials of which and their proportions include 0.01%-0.03% gibberellic acid, 0.003%-0.01% complex nitrophenol, 0.01%-0.02% salicylic acid derivatives, 0.2%-5% octylphenol polyoxyethylene ether, 0.02%-0.05% soluble humic acid, 0.01%-0.5% glucose, 0.01%-0.02% magnesium ammonium phosphate, 2%-3% attapulgite, 15%-35% ethanol and 60%-80% pure water.

[0014] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are: 1. The present invention adds attapulgite to the flying hair and catkin nutrient solution, and utilizes the hygroscopicity and adsorption of attapulgite to achieve the moisturizing and adsorption and slow-release effects of active components, while improving the ability of active components in the nutrient solution to continuously regulate poplars and willows for a long time. Attapulgite minerals can be used as silicon fertilizers to improve the lodging resistance of trees and branches and leaves, reduce diseases and insect pests, and reduce the maintenance cost of poplars and willows. The adsorption performance of attapulgite can effectively reduce the amount of solvent used, overcome the deficiency of low concentration of insoluble components, and achieve the production of high-concentration active component flocculants. By compounding soluble humic acid, glucose and magnesium ammonium phosphate, the nutrients required for plant growth in a relatively low temperature environment can be provided, photosynthesis can be promoted, and the quality of poplars and willows can be improved. 2. The present invention can effectively improve the dispersibility of attapulgite by adding materials such as octylphenol polyoxyethylene ether and glucose into the nutrient solution, greatly improve the stability of the suspending agent, and enable the nutrient solution to be preserved for a long time. By precisely controlling the materials and components of the nutrient solution, the flying hair and catkins of poplar and willow trees during the breeding season can be significantly reduced, thereby improving the air quality and reducing the possibility of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a flow chart of the preparation of the flying catkins slow-release nutrient solution in an embodiment of the present invention; Figure 2 Schematic diagram comparing the inhibitory effects of nutrient solution on flying hair and catkins in the embodiments of the present invention. DETAILED DESCRIPTION

[0016] The specific embodiments of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0017] The invention discloses a method for preparing a slow-release flocculation-inhibiting nutrient solution. The main synthetic materials of the slow-release flocculation-inhibiting nutrient solution include gibberellic acid, complex nitrophenol, salicylic acid derivatives, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, ethanol and pure water. The specific operation steps of the method for preparing the slow-release flocculation-inhibiting nutrient solution are as follows: Step 1, preparing an alcohol agent, adding gibberellic acid, salicylic acid derivatives and octylphenol polyoxyethylene ether into a conical flask according to a ratio, and adding anhydrous ethanol at a temperature of 20°C-30°C to stir and mix until the powder in the conical flask is completely dissolved and the solution is uniform, and after stirring, the alcohol agent is prepared, and it is placed in a brown glass bottle and stored away from light for later use; Step 2: prepare a solid phase loading agent. Add attapulgite and glucose into a round-bottom beaker according to the ratio, add pure water and stir and mix at 20°C-25°C to obtain a suspension. Put the suspension into an ultrasonic cleaner for ultrasonic dispersion for 30min-60min. After the dispersion is completed, put it into a clean glass bottle, seal it and let it stand for 1d-2d, and take the upper layer of unprecipitated suspension for later use.

[0018] Step 3, preparing a corrosion inhibitor precursor, adding complex nitrophenol, glucose and magnesium ammonium phosphate into a conical flask, and adding the upper unprecipitated suspension obtained in step 3 thereto to mix, stirring it at a temperature of 20°C-30°C, stirring it fully until the powder is completely dissolved to prepare a corrosion inhibitor precursor, and storing it in a glass bottle for later use; Step 4: prepare a humic acid solution. Pour pure water into a clean glass beaker, slowly add humic acid powder, stir while adding, stir at 25°C for 1-2h, and transfer it into a filter for filtering. After filtering out the undissolved humic acid, a soluble humic acid solution is obtained, which is placed in a glass bottle and sealed for storage; Step 5: Prepare the finished nutrient solution. Add the corrosion inhibitor precursor and humic acid solution to a magnetic stirrer according to the ratio of the effective ingredients, stir and mix, then add the corresponding proportion of alcohol agent dropwise, stir and mix at a temperature of 25°C-35°C, and dilute with pure water to a predetermined concentration. After stirring, the finished nutrient solution is obtained, which is placed in a glass bottle for storage; Step 6: Inject nutrient solution. The steps for injecting nutrient solution are as follows: Estimate the total amount of medicine used, prepare the nutrient solution based on the total amount of medicine used, measure the diameter at breast height of the trees to be treated, and determine the amount of nutrient solution required for each tree, then drill holes in the trees and determine the amount of medicine to be injected in each hole. After completion, inject the trees with nutrient solution.

[0019] In one embodiment of the present invention, the gibberellic acid, complex nitrophenol, salicylic acid derivatives, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, anhydrous ethanol and pure water are prepared in the following proportions: Gibberellic acid——————0.01%-0.03% Compound nitrophenol————0.003%-0.01% Salicylic acid derivatives——0.005%-0.01% Octylphenol polyoxyethylene ether—0.2%-5% Soluble humic acid——0.02%-0.05% Glucose——————0.01%-0.5% Magnesium ammonium phosphate————0.01%-0.02% Attapulgite - 2% - 3% Anhydrous ethanol————15%-35% Pure water——————60%-80% The above pure water ratio is the sum of pure water used in all steps.

[0020] In one embodiment of the present invention: in step 1, the stirring rate during stirring and mixing is controlled between 300 r / min-400 r / min, and the stirring time is controlled between 30 min-60 min.

[0021] In one embodiment of the present invention: in step 2, the stirring rate during stirring and mixing is controlled between 250r / min-300r / min, the stirring time is controlled between 45min-60min, and the power of the ultrasonic cleaning machine is between 200W-450W.

[0022] In one embodiment of the present invention: in step three, the mixed solution is stirred using a magnetic stirrer, and the stirring rate is controlled between 300 r / min-350 r / min.

[0023] In one embodiment of the present invention: in step 4, the stirring rate during stirring and mixing is controlled between 250r / min-300r / min, the stirring time is controlled between 10min-25min, and the filtered humic acid solution and pure water are diluted in a ratio of 1:2.

[0024] In one embodiment of the present invention: in step five, the stirring rate of the aqueous solution and the suspending agent during stirring and mixing needs to be controlled between 280r / min-350r / min, and the stirring and mixing rate of the mixed solution of the aqueous solution and the suspending agent and the alcohol agent needs to be controlled between 300r / min-450r / min.

[0025] In one embodiment of the present invention: in step six, the nutrient solution is injected from 45 days before the poplar and willow hair and catkins fly to 45 days after the start of hair and catkins fly, and the injection is performed once a year. After the injection is completed, the hair and catkins of the poplar and willow are monitored.

[0026] In one embodiment of the present invention, the salicylic acid derivatives include one or more of sodium salicylate, acetylsalicylic acid, p-aminosalicylic acid, methyl salicylate, isopentyl salicylate, isopropyl salicylate, salicylic acid-glucoside and other complexes.

[0027] In one embodiment of the present invention, glucose (PEG) is one or more of PEG-200, PEG-400, PEG-600, PEG-800 and EG-1000.

[0028] In one embodiment of the present invention, the particle size of the attapulgite powder is 600-1200 mesh, and the attapulgite powder can be replaced by diatomaceous earth, molecular sieve, sepiolite, tourmaline, silica gel, etc.

[0029] In one embodiment of the present invention: according to the size of the tree's diameter at breast height, the amount of nutrient solution injected is also changed relatively: 2 holes are drilled for diameters below 20 cm, 3 holes are drilled for diameters between 20 cm and 50 cm, 4 holes are drilled for diameters between 50 cm and 75 cm, and the number of holes drilled is increased accordingly for diameters above 75 cm depending on the thickness of the trunk. The number of injections per hole is 12-25 times, and 2 mL of medicine is injected each time. The drilling method is to use an electric drill to vertically drill holes at about 1.3 meters at the diameter at breast height of the trunk. 2-10 holes are drilled according to the diameter at breast height of the tree. The hole depth is generally about 5 cm and the hole diameter is about 0.8 cm. The injection holes should be staggered up and down, and then an injection machine is used to inject medicine according to requirements and operating specifications.

[0030] A slow-release anti-flocculation nutrient solution, the raw materials of which and their proportions include 0.01%-0.03% gibberellic acid, 0.003%-0.01% complex nitrophenol, 0.01%-0.02% salicylic acid derivatives, 0.2%-5% octylphenol polyoxyethylene ether, 0.02%-0.05% soluble humic acid, 0.01%-0.5% glucose, 0.01%-0.02% magnesium ammonium phosphate, 2%-3% attapulgite, 15%-35% ethanol and 60%-80% pure water.

[0031] Embodiment 1 The raw materials and proportions of the slow-release anti-flocculation nutrient solution include 0.02% gibberellic acid, 0.01% complex nitrophenol, 0.01% salicylic acid derivative, 5% octylphenol polyoxyethylene ether, 0.02% soluble humic acid, 0.25% glucose, 0.02% magnesium ammonium phosphate, 2% attapulgite, 35% ethanol and 60% pure water; First, gibberellic acid, salicylic acid derivatives and octylphenol polyoxyethylene ether are added to a conical flask according to a ratio, and anhydrous ethanol is added to stir and mix at a temperature of 25° C. The stirring rate is controlled at 400 r / min and the stirring time is controlled at 60 min until the powder in the conical flask is completely dissolved and the solution is uniform. After the stirring is completed, an alcohol agent is prepared, which is placed in a brown glass bottle and stored away from light for later use; Secondly, add attapulgite and glucose into a round-bottom beaker according to the proportion, add pure water, stir and mix at 25°C, control the stirring rate at 300r / min, and control the stirring time at 45min. After the stirring is completed, a suspension is obtained, and the suspension is placed in an ultrasonic cleaning machine for ultrasonic dispersion. The power of the ultrasonic cleaning machine is 450W, and the dispersion time is 60min. After the dispersion is completed, it is placed in a clean glass bottle, sealed and stored, and left to stand for 2d, and the upper clear liquid is taken for use; Next, the complex nitrophenol and magnesium ammonium phosphate are added to a conical flask, and the supernatant obtained in the above step is added thereto to form a mixed solution, which is stirred at a temperature of 25° C. using a magnetic stirrer, and the stirring rate is controlled at 350 r / min. After being fully stirred until the powder is completely dissolved, a suspension is prepared, which is then put into a glass bottle for storage for later use; Then, pure water is poured into a clean glass beaker, and the soluble humic acid powder is slowly added, while being stirred, and stirred for 25 minutes at a temperature of 25° C., and the stirring rate is controlled at 300 r / min, and stirred until the soluble humic acid powder is completely dissolved in the pure water, so as to obtain a humic acid mixed solution, and the mixed solution is transferred into a filter for filtering, and impurities and particles are filtered out to obtain a humic acid solution, and then pure water is added for dilution to obtain an aqueous solution, and the aqueous solution is put into a glass bottle and sealed for storage for later use; Finally, the aqueous solution and the suspending agent are added to a magnetic stirrer and stirred and mixed. The stirring rate is controlled at 280 r / min, and the alcohol agent is added dropwise. The stirring and mixing rate of the mixed solution of the aqueous solution and the suspending agent and the alcohol agent is controlled at 300 r / min, and the stirring and mixing are carried out at a temperature of 30°C. After stirring, the finished nutrient solution is obtained and placed in a glass bottle for storage for later use.

[0032] Embodiment 2 The raw materials and proportions of the slow-release anti-flocculation nutrient solution include 0.02% gibberellic acid, 0.01% complex nitrophenol, 0.01% salicylic acid derivative, 5% octylphenol polyoxyethylene ether, 0.02% soluble humic acid, 0.25% glucose, 0.02% magnesium ammonium phosphate, 3% attapulgite, 20% ethanol and 75% pure water; First, gibberellic acid, salicylic acid derivatives and octylphenol polyoxyethylene ether are added to a conical flask according to a ratio, and anhydrous ethanol is added to stir and mix at a temperature of 25° C. The stirring rate is controlled at 400 r / min and the stirring time is controlled at 60 min until the powder in the conical flask is completely dissolved and the solution is uniform. After the stirring is completed, an alcohol agent is prepared, which is placed in a brown glass bottle and stored away from light for later use; Secondly, add attapulgite and glucose into a round-bottom beaker according to the proportion, add pure water, stir and mix at 25°C, control the stirring rate at 300r / min, and control the stirring time at 45min. After the stirring is completed, a suspension is obtained, and the suspension is placed in an ultrasonic cleaning machine for ultrasonic dispersion. The power of the ultrasonic cleaning machine is 450W, and the dispersion time is 60min. After the dispersion is completed, it is placed in a clean glass bottle, sealed and stored, and left to stand for 2d, and the upper clear liquid is taken for use; Next, the complex nitrophenol and magnesium ammonium phosphate are added to a conical flask, and the supernatant obtained in the above step is added thereto to form a mixed solution, which is stirred at a temperature of 25° C. using a magnetic stirrer, and the stirring rate is controlled at 350 r / min. After being fully stirred until the powder is completely dissolved, a suspension is prepared, which is then put into a glass bottle for storage for later use; Then, pure water is poured into a clean glass beaker, and the soluble humic acid powder is slowly added, while being stirred, and stirred for 25 minutes at a temperature of 25° C., and the stirring rate is controlled at 300 r / min, and stirred until the soluble humic acid powder is completely dissolved in the pure water, so as to obtain a humic acid mixed solution, and the mixed solution is transferred into a filter for filtering, and impurities and particles are filtered out to obtain a humic acid solution, and then pure water is added for dilution to obtain an aqueous solution, and the aqueous solution is put into a glass bottle and sealed for storage for later use; Finally, the aqueous solution and the suspending agent are added to a magnetic stirrer and stirred and mixed. The stirring rate is controlled at 280 r / min, and the alcohol agent is added dropwise. The stirring and mixing rate of the mixed solution of the aqueous solution and the suspending agent and the alcohol agent is controlled at 300 r / min, and the stirring and mixing are carried out at a temperature of 30°C. After stirring, the finished nutrient solution is obtained and placed in a glass bottle for storage for later use.

[0033] Embodiment 3 The raw materials and proportions of the slow-release anti-flocculation nutrient solution include 0.02% gibberellic acid, 0.01% complex nitrophenol, 0.01% salicylic acid derivative, 5% octylphenol polyoxyethylene ether, 0.02% soluble humic acid, 0.25% glucose, 0.02% magnesium ammonium phosphate, 3% attapulgite, 15% ethanol and 80% pure water; First, gibberellic acid, salicylic acid derivatives and octylphenol polyoxyethylene ether are added to a conical flask according to a ratio, and anhydrous ethanol is added to stir and mix at a temperature of 25° C. The stirring rate is controlled at 400 r / min and the stirring time is controlled at 60 min until the powder in the conical flask is completely dissolved and the solution is uniform. After the stirring is completed, an alcohol agent is prepared, which is placed in a brown glass bottle and stored away from light for later use; Secondly, add attapulgite and glucose into a round-bottom beaker according to the proportion, add pure water, stir and mix at 25°C, control the stirring rate at 300r / min, and control the stirring time at 45min. After the stirring is completed, a suspension is obtained, and the suspension is placed in an ultrasonic cleaning machine for ultrasonic dispersion. The power of the ultrasonic cleaning machine is 450W, and the dispersion time is 60min. After the dispersion is completed, it is placed in a clean glass bottle, sealed and stored, and left to stand for 2d, and the upper clear liquid is taken for use; Next, the complex nitrophenol and magnesium ammonium phosphate are added to a conical flask, and the supernatant obtained in the above step is added thereto to form a mixed solution, which is stirred at a temperature of 25° C. using a magnetic stirrer, and the stirring rate is controlled at 350 r / min. After being fully stirred until the powder is completely dissolved, a suspension is prepared, which is then put into a glass bottle for storage for later use; Then, pure water is poured into a clean glass beaker, and the soluble humic acid powder is slowly added, while being stirred, and stirred for 25 minutes at a temperature of 25° C., and the stirring rate is controlled at 300 r / min, and stirred until the soluble humic acid powder is completely dissolved in the pure water, so as to obtain a humic acid mixed solution, and the mixed solution is transferred into a filter for filtering, and impurities and particles are filtered out to obtain a humic acid solution, and then pure water is added for dilution to obtain an aqueous solution, and the aqueous solution is put into a glass bottle and sealed for storage for later use; Finally, the aqueous solution and the suspending agent are added to a magnetic stirrer and stirred and mixed. The stirring rate is controlled at 280 r / min, and the alcohol agent is added dropwise. The stirring and mixing rate of the mixed solution of the aqueous solution and the suspending agent and the alcohol agent is controlled at 300 r / min, and the stirring and mixing are carried out at a temperature of 30°C. After stirring, the finished nutrient solution is obtained and placed in a glass bottle for storage for later use.

[0034] Comparative Example 1 The catkin inhibitor is prepared by a method for preparing a plant catkin inhibitor provided in the patent document entitled "A plant catkin inhibitor and its use" with application publication number CN101147483A. The specific preparation steps are as follows: The components are the original drugs of gibberellin, naphthylacetic acid, indolebutyric acid, a cosolvent and water.

[0035] Comparative Example 2 The inhibitor is prepared by a method for preparing a poplar and willow catkin inhibitor provided in the patent document entitled "A Poplar and Willow Catkin Inhibitor and Its Application" with application publication number CN117016545A. The specific preparation steps are as follows: The invention is composed of water, a polymer matrix and a sprout inhibitor, wherein the polymer matrix is ​​polytrisiloxane, the sprout inhibitor is a sprout inhibitor, and the sprout inhibitor is pendimethalin, wherein the mass ratio of polytrisiloxane to pendimethalin is 0.005.

[0036] Blank control group, No treatment is done on willow trees to suppress flying hairs and catkins.

[0037] Female poplar and willow trees in Beijing were selected as test subjects, and the injection method of the present invention was used to inject them. The nutrient solution and inhibitor prepared according to Example 1, Example 2, Example 3, Comparative Example 1 and Comparative Example 2 were injected into female poplar and willow trees with a breast diameter of 20 cm-75 cm. The prevention and control results of different nutrient solutions and inhibitors on flying hair and catkin pollution of female poplar and willow trees were observed and recorded, and the recording time was divided into five time periods, namely March 8, April 8, May 8, June 8 and July 8.

[0038] As attached Figure 2 As shown, the nutrient solution prepared by the present invention has a better effect on the control of flying hair and flying catkins, and can significantly reduce the generation of flying hair and flying catkins of poplar and willow trees in a relatively short period of time, and the cost is controllable, which is convenient for large-scale promotion and application.

[0039] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

[0040] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0041] The above contents are merely examples and explanations of the present invention. Various modifications or additions to the specific embodiments described or replacements in similar ways by technicians in the technical field shall fall within the protection scope of the present invention as long as they do not deviate from the invention or exceed the scope defined by the claims.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for preparing a slow-release flocculation-inhibiting nutrient solution, characterized in that: The main synthetic materials of the slow-release type flocculant-inhibiting nutrient solution include gibberellic acid, complex nitrophenol, salicylic acid derivatives, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, ethanol and pure water. The specific operation steps of the slow-release type flocculant-inhibiting nutrient solution preparation method are as follows: Step 1, preparing an alcohol agent, adding gibberellic acid, salicylic acid derivatives and octylphenol polyoxyethylene ether into a conical flask according to a ratio, and adding anhydrous ethanol at a temperature of 20°C-30°C to stir and mix until the powder in the conical flask is completely dissolved and the solution is uniform, and after stirring, the alcohol agent is prepared, and it is placed in a brown glass bottle and stored away from light for later use; Step 2, prepare a solid phase loading agent, add attapulgite and glucose into a round-bottom beaker according to the ratio, add pure water and stir and mix at 20°C-25°C to obtain a suspension, put the suspension into an ultrasonic cleaning machine for ultrasonic dispersion, the dispersion time is 30min-60min, after the dispersion is completed, put it into a clean glass bottle, seal it and let it stand for 1d-2d, take the upper layer of unprecipitated suspension for later use; Step 3, preparing a corrosion inhibitor precursor, adding complex nitrophenol, glucose and magnesium ammonium phosphate into a conical flask, and adding the upper unprecipitated suspension obtained in step 3 thereto to mix, stirring it at a temperature of 20°C-30°C, stirring it fully until the powder is completely dissolved to prepare a corrosion inhibitor precursor, and storing it in a glass bottle for later use; Step 4: prepare a humic acid solution. Pour pure water into a clean glass beaker, slowly add humic acid powder, stir while adding, stir at 25°C for 1-2h, and transfer it into a filter for filtering. After filtering out the undissolved humic acid, a soluble humic acid solution is obtained, which is placed in a glass bottle and sealed for storage; Step 5, prepare the finished nutrient solution, add the corrosion inhibitor precursor and the humic acid solution in a magnetic stirrer according to the ratio of the effective ingredients, stir and mix, then add the alcohol agent in a corresponding ratio dropwise, stir and mix at a temperature of 25°C-35°C, and dilute with pure water to a predetermined concentration. After stirring, the finished nutrient solution is obtained, which is placed in a glass bottle for storage; Step 6: Inject nutrient solution. The steps for injecting nutrient solution are as follows: Estimate the total amount of medicine used, prepare the nutrient solution based on the total amount of medicine used, measure the diameter at breast height of the trees to be treated, and determine the amount of nutrient solution required for each tree, then drill holes in the trees and determine the amount of medicine to be injected in each hole. After completion, inject the trees with nutrient solution.

2. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: The proportions of gibberellic acid, complex nitrophenol, salicylic acid derivatives, octylphenol polyoxyethylene ether, soluble humic acid, glucose, magnesium ammonium phosphate, attapulgite, anhydrous ethanol and pure water are as follows: Gibberellic acid——————0.01%-0.03% Compound nitrophenol————0.003%-0.01% Salicylic acid derivatives——0.005%-0.01% Octylphenol polyoxyethylene ether—0.2%-5% Soluble humic acid——0.02%-0.05% Glucose——————0.01%-0.5% Magnesium ammonium phosphate————0.01%-0.02% Attapulgite - 2% - 3% Anhydrous ethanol————15%-35% Pure water——————60%-80% The above pure water ratio is the sum of pure water used in all steps.

3. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: In the step 1, the stirring rate during stirring and mixing is controlled between 300 r / min-400 r / min, and the stirring time is controlled between 30 min-60 min.

4. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: In the step 2, the stirring rate during stirring and mixing is controlled between 250 r / min-300 r / min, the stirring time is controlled between 45 min-60 min, and the power of the ultrasonic cleaning machine is between 200 W-450 W.

5. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: In the step three, the mixed solution is stirred using a magnetic stirrer, and the stirring rate is controlled between 300 r / min and 350 r / min.

6. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: In the step 4, the stirring rate during the stirring and mixing is controlled between 250 r / min and 300 r / min, the stirring time is controlled between 10 min and 25 min, and the filtered humic acid solution and pure water are diluted in a ratio of 1:

2.

7. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: In the step 5, the stirring rate of the aqueous solution and the suspending agent during stirring and mixing needs to be controlled between 280 r / min and 350 r / min, and the stirring and mixing rate of the mixed solution of the aqueous solution and the suspending agent and the alcohol agent needs to be controlled between 300 r / min and 450 r / min.

8. The method for preparing a slow-release flocculation-inhibiting nutrient solution according to claim 1, characterized in that: In the step six, the nutrient solution is injected from 45 days before the poplar and willow hair and catkins fly to 45 days after the start of hair and catkins fly, once a year, and the hair and catkins fly are monitored after the injection is completed.

9. A slow-release flocculation-inhibiting nutrient solution suitable for the method for preparing the slow-release flocculation-inhibiting nutrient solution according to any one of claims 1 to 8, characterized in that: The raw materials and proportions of the slow-release anti-flocculation nutrient solution include 0.01%-0.03% gibberellic acid, 0.003%-0.01% complex nitrophenol, 0.01%-0.02% salicylic acid derivatives, 0.2%-5% octylphenol polyoxyethylene ether, 0.02%-0.05% soluble humic acid, 0.01%-0.5% glucose, 0.01%-0.02% magnesium ammonium phosphate, 2%-3% attapulgite, 15%-35% ethanol and 60%-80% pure water.

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