CN114868739B - Special auxiliary agent for improving root irrigation and pesticide application control effects, and preparation method and use method thereof - Google Patents
Special auxiliary agent for improving root irrigation and pesticide application control effects, and preparation method and use method thereof Download PDFInfo
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- CN114868739B CN114868739B CN202210443465.9A CN202210443465A CN114868739B CN 114868739 B CN114868739 B CN 114868739B CN 202210443465 A CN202210443465 A CN 202210443465A CN 114868739 B CN114868739 B CN 114868739B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/02—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing liquids as carriers, diluents or solvents
- A01N25/04—Dispersions, emulsions, suspoemulsions, suspension concentrates or gels
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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
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
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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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Zoology (AREA)
- Plant Pathology (AREA)
- Environmental Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Dispersion Chemistry (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and a preparation method and a use method thereof. The auxiliary agent consists of the following components: polysaccharide 0.01-30%; 0.5-25% of film forming agent; 0.1-10% of cross-linking agent; 0.01-10% of thickening agent; 0.01-5% of pH regulator; the water is used for supplementing 100 percent. The preparation method comprises dissolving polysaccharide in water, adding thickener, film forming agent, crosslinking agent, and pH regulator, mixing, and naturally cooling to ambient temperature. When in use, the special auxiliary agent for improving the root irrigation and pesticide application prevention and treatment effect is diluted by adding water, then the target pesticide preparation is added according to a preset proportion, and the mixture is poured into a preset root irrigation and pesticide application medicine box to apply the pesticide. The special auxiliary agent effectively reduces the loss of the effective dose of the pesticide in the root irrigation and pesticide application technology, improves the pesticide utilization rate in the root irrigation and pesticide application, and has the advantages of high safety, high efficiency, little pollution and wide application range.
Description
Technical Field
The invention relates to a special auxiliary agent for improving root irrigation and pesticide application control effects, a preparation method and a use method thereof, and belongs to the technical field of efficient pesticide application.
Background
According to the knowledge of the inventor, the root irrigation and application technology is a traditional pesticide application technology, and has the advantages that the operation is simple and convenient, the pesticide application technology is easy to master by farmers, the root irrigation and application technology is usually applied in an environment with low soil humidity, the prior art only comprises the steps of diluting the medicament with water and then irrigating or drip-irrigating the plant rhizosphere, and the preparation of the medicament is not different from the conventional spray control technology. Because the spray liquid medicine is usually prepared according to the surface structural characteristics of the pesticide application machine, the plant target and the prevention and control object, and has no suitability with soil and plant root systems, the root irrigation and pesticide application prevention and control effect is poor, the leaching loss of the pesticide is serious, and the farmland environment and water source pollution are caused. There is a need to develop adjuvants that make the formulations more suitable for root irrigation.
Disclosure of Invention
The main purpose of the invention is as follows: the special auxiliary agent for improving the root irrigation and pesticide application prevention and treatment effect is provided, the special auxiliary agent is diluted by water and mixed with pesticide preparations, the obtained solution has the characteristics of difficult leaching in soil, evaporation resistance, long moisturizing time and the like, and the loss of the effective pesticide dosage in the root irrigation and pesticide application technology can be effectively reduced, so that the pesticide utilization rate in the root irrigation and pesticide application is improved, and the special auxiliary agent is safe, efficient, small in pollution and wide in application range. Meanwhile, the invention also provides a corresponding preparation method and a corresponding use method.
The technical scheme for solving the technical problems is as follows:
the special auxiliary agent for improving root irrigation and pesticide application prevention and control effects is characterized by comprising the following components in percentage by weight:
in the auxiliary agent, the polysaccharide component and the thickening agent are mutually combined in a secondary bond form through a branched chain and a double-spiral structure to form a three-dimensional network structure, so that the auxiliary agent has better sustained and controlled release performance of the medicament; the film forming agent and the cross-linking agent can play a good role in water locking and film forming, and inhibit the diffusion and evaporation of water molecules in soil molecules; polysaccharide substances can be better absorbed by plant root systems, and the upward transportation of pesticide active ingredients in plants is promoted. The auxiliary agent has the characteristics of difficult leaching in soil, evaporation resistance, long moisturizing time and the like, effectively reduces the loss of the effective pesticide dosage in the root irrigation and pesticide application technology, and improves the pesticide utilization rate in the root irrigation and pesticide application; and is suitable for pesticide preparations in various dosage forms, such as emulsifiable concentrates, microemulsions, suspending agents, wettable powder, soluble liquid and water dispersible granules.
Preferably, the special auxiliary agent for improving root irrigation and pesticide application prevention and control effects comprises the following components in percentage by weight:
preferably, the polysaccharide is one or more than two of guar gum, hydroxypropyl guar ammonium salt, locust bean gum and sophorolipid.
Preferably, the film forming agent is one or a mixture of more than two of carboxymethyl cellulose, dodecanol ester and sodium alginate.
Preferably, the cross-linking agent is one or a mixture of polyethylene glycol and polyvinyl alcohol.
Preferably, the thickener is one or more of xanthan gum, carrageenan, gelatin and gum arabic.
Preferably, the pH regulator is one or more of citric acid, acetic acid, sodium hydroxide and sodium bicarbonate.
By adopting the preferable scheme, the specific composition of the special auxiliary agent can be further optimized, and the prevention and control effect of root irrigation and pesticide application can be better improved.
The invention also provides:
the preparation method of the special auxiliary agent for improving root irrigation and pesticide application prevention and control effects is characterized by comprising the following steps of:
firstly, dissolving polysaccharide in a proper amount of water, and uniformly stirring;
and step two, adding a thickening agent, a film forming agent and a crosslinking agent into the mixed solution obtained in the step one under the stirring condition, adding a pH regulator, uniformly mixing, naturally cooling to the ambient temperature, and supplementing water to obtain the finished product.
Preferably, in the first step, the temperature of the water is 40 ℃ to 80 ℃; in the second step, the stirring condition is 1000-3000rpm.
The preparation method can smoothly prepare the special auxiliary agent for improving the root irrigation and drug application prevention and treatment effects, and has the characteristics of safety, high efficiency, small pollution, wide application range and the like.
The invention also provides:
the application method of the special auxiliary agent for improving root irrigation and pesticide application prevention and control effects is characterized by comprising the following steps of: the special auxiliary agent is diluted by adding water, then the target pesticide preparation is added according to a preset proportion, and the mixture is poured into a preset root irrigation and pesticide application medicine box after being uniformly mixed, so that the pesticide can be applied.
The application method can effectively improve the pesticide utilization rate of the target pesticide preparation in root irrigation and pesticide application by adopting the auxiliary agent.
Compared with the prior art, in the special auxiliary agent, the polysaccharide component and the thickener are mutually combined in a secondary bond form through a branched chain and a double-helix structure to form a three-dimensional network structure, so that the special auxiliary agent has better sustained and controlled release performance of the medicament; the film forming agent and the cross-linking agent can play a good role in water locking and film forming, and inhibit the diffusion and evaporation of water molecules in soil molecules; polysaccharide substances can be better absorbed by plant root systems, and the upward transportation of pesticide active ingredients in plants is promoted. The special auxiliary agent can be mixed with pesticide preparations in all main stream dosage forms on the market, and has wide application range. In addition, the special auxiliary agent has good environmental compatibility of each component and does not generate secondary pollution.
Detailed Description
The present invention will be described in further detail with reference to examples. The invention is not limited to the examples given.
Example 1
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding guar gum into a proper amount of 50 ℃ constant temperature water under the mechanical stirring condition of 3000rpm, sequentially adding xanthan gum, polyvinyl alcohol, dodecanol ester and sodium bicarbonate under the stirring condition, and finally supplementing water to obtain a finished product.
Example 2
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding locust bean gum into constant temperature water of 50 ℃ under the mechanical stirring condition of 2000rpm, sequentially adding xanthan gum, polyethylene glycol, carrageenan, sodium alginate and sodium hydroxide under the stirring condition, and finally supplementing water to obtain the finished product.
Example 3
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding locust bean gum into constant temperature water of 50 ℃ under the mechanical stirring condition of 1000rpm, sequentially adding xanthan gum, polyethylene glycol, carrageenan, sodium alginate, carboxymethyl cellulose and sodium hydroxide under the stirring condition, and finally supplementing water to obtain the finished product.
Example 4
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding the Caesalpinia spinosa gum into constant temperature water at 50 ℃ under the mechanical stirring condition of 1000rpm, sequentially adding sodium alginate, polyvinyl alcohol, carrageenan and acetic acid under the stirring condition, and finally supplementing water to obtain a finished product.
Example 5
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding sophorolipid into normal temperature water (namely the water temperature is the same as the ambient temperature and the same as the ambient temperature) under the mechanical stirring condition of 1000rpm, sequentially adding gum arabic, gelatin, polyethylene glycol, dodecanol ester and sodium hydroxide under the stirring condition, and finally supplementing water to obtain the finished product.
Example 6
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding locust bean gum into warm water under mechanical stirring at 3000rpm, sequentially adding dodecyl alcohol ester, polyethylene glycol, carrageenan, gelatin, and sodium bicarbonate under stirring, and adding water to obtain the final product.
Example 7
The embodiment is a special auxiliary agent for improving root irrigation and pesticide application prevention and control effects, and comprises the following components in percentage by weight:
the specific preparation method of the embodiment is as follows: adding sophorolipid into warm water under mechanical stirring at 3000rpm, sequentially adding sodium alginate, polyvinyl alcohol, carrageenan and sodium bicarbonate under stirring, and supplementing water to obtain the final product.
Example 8
The present example is a test for the effect of inhibiting permeation, resisting evaporation and improving soil water retention against the special auxiliary agent of examples 1 to 7.
The permeation time, permeation depth and water evaporation inhibition rate were measured using 1000-fold dilutions of the special adjuvant of examples 1-7 and the control clear water.
The dry soil is prepared in advance, dried for 24 hours at the temperature of 30 ℃ in a drying oven, taken out, ground and sieved by a 20-mesh sieve, and the obtained fine soil is put into a 10mL centrifuge tube with the diameter of 1cm and is leveled with the highest scale mark. 1mL of the 1000-fold diluent special for the auxiliary agent in examples 1-7 and the contrast clear water are taken and added into a centrifuge tube along the tube wall, and the time required for the solution to completely enter the soil is recorded as the penetration time. And (3) standing for 4 hours, wherein the measured water entering depth is the penetration distance, weighing the centrifuge tube, putting the centrifuge tube into a constant temperature and constant humidity incubator with the temperature of 25 ℃ and the humidity of 80%, weighing again after 24 hours, calculating the weight difference twice, comparing the weight difference with a control, and calculating the water evaporation inhibition rate. The results are shown in Table 1.
Table 1 results of measurement of the performance of the adjuvant solution
As can be seen from table 1, clear water (i.e. clear water control group) is directly added, and the mixture is completely permeated within 155 seconds, and all the water enters the soil, but more than 7000 seconds are required for example 1, example 2 and example 3 to complete permeation, and 275 seconds are required for completing permeation even in example 5, which proves that the special auxiliary agent has a better function of prolonging permeation time. From the perspective of penetration distance, clear water can penetrate to a position 3.45cm below a soil layer, and penetration distances of the embodiment 1, the embodiment 2 and the embodiment 3 are all lower than 2cm, which proves that the special auxiliary agent provided by the invention has a good moisture locking function. From the 24-hour water evaporation inhibition rate, the inhibition effect of the special auxiliary agent of the invention is highest, 84.38% is reached, and the inhibition rate of the special auxiliary agent of the invention is slightly lower, but 34.38% is also reached, which fully proves that the special auxiliary agent of the invention has higher water retention performance.
Example 9
The present example is a field control effect test of the special auxiliary agent of examples 1-4 used in combination with commercial pesticides.
The special auxiliary agent of the examples 1-4 is matched with the pesticide preparation, so that obvious synergism can be obtained in the root irrigation and pesticide application prevention and treatment in the field. The method comprises the following steps:
the test was carried out in a glass greenhouse at 28 ℃ + -2 ℃ with a relative humidity maintained between 65-80%. Soil of the same weight and the same source is filled in plastic bowls with the side length of 10cm and the height of 15cm, 50 cotton seeds of one cotton seed are sowed in the middle position of each bowl, and fine soil with the depth of 1cm is covered. The cotton emergence management measures are the same, and the test is carried out after about 45 days.
During the test, the bemisia tabaci and cotton aphid naturally occur on cotton plants, and the pot with the insect population density reaching more than 15 heads is selected for the test. The varieties of the selected medicaments are 2% flonicamid SC, 10% flonicamid WDG, 22% flonicamid SC and 50% flonicamid WDG, namely two formulations of the two active ingredients. Firstly, respectively weighing the special auxiliary agents in examples 1-4 and adding water to prepare 1000mg/L solution, respectively weighing the medicaments to prepare liquid medicine, wherein each medicament treatment is provided with a conventional control diluted by clean water, and a blank control is additionally provided, and each treatment is repeated for 12 times. And (5) carrying out investigation on the number of the insect population before the medicine, investigating the number of residual living insects after the medicine is processed for 72 hours, and calculating the rate of reduction of the insect population and the prevention and treatment effect. The test results are shown in Table 2. The results show that:
in the treatment of diluting the flonicamid SC by 1000 times, the bemisia tabaci reduction rates after the medicines of the examples 1-4 are 52.54%, 70.91%, 69.48% and 53.49% respectively, which are higher than 47.27% of the conventional control, and the corresponding control effects of the examples 1-4 are 70.34%, 75.41%, 79.08% and 71.47% respectively, which are higher than 64.42% of the conventional control; the aphid population reduction rates after the drugs in examples 1-4 are 56.77%, 61.67%, 64.60% and 58.25%, respectively, which are higher than 45.38% of the conventional control, and the control effects in examples 1-4 are 66.33%, 72.41%, 73.06% and 67.11%, respectively, which are higher than 59.59% of the conventional control.
In the 5000-fold dilution treatment of 10% flonicamid WDG, the bemisia tabaci reduction rates after the medicines of examples 1-4 are 63.84%, 72.63%, 75.98% and 65.96%, respectively, which are higher than 58.38% of the conventional control, and the corresponding control effects of examples 1-4 are 76.00%, 84.87%, 84.05% and 79.03%, respectively, which are higher than 72.82% of the conventional control; the aphid population reduction rates after the drugs in examples 1-4 are 61.00%, 72.27%, 77.34% and 69.53%, respectively, which are higher than 43.55% of the conventional control, and the control effects in examples 1-4 are 73.76%, 80.02%, 84.06% and 79.65%, respectively, which are higher than 64.98% of the conventional control.
In the 1000-fold dilution treatment of 22% sulfoxaflor SC, the bemisia tabaci reduction rates after the medicines of examples 1-4 are 61.20%, 63.89%, 58.46% and 54.58%, respectively, which are higher than 47.08% of the conventional control, and the corresponding control effects of examples 1-4 are 73.89%, 76.47%, 75.41% and 70.31%, respectively, which are higher than 63.67% of the conventional control; the aphid population reduction rates after the drugs in examples 1-4 are 53.32%, 60.92%, 66.83% and 67.55%, respectively, which are higher than 56.67% of the conventional control, and the control effects in examples 1-4 are 66.28%, 70.12%, 76.20% and 72.93%, respectively, which are higher than 67.16% of the conventional control.
In the 2500-fold dilution treatment of 50% sulfoxaflor WDG, the bemisia tabaci reduction rates after the medicines of examples 1-4 are 75.27%, 78.17%, 80.11% and 78.73%, respectively, which are higher than those of the conventional control 55.45%, and the corresponding control effects of examples 1-4 are 81.24%, 83.55%, 85.91% and 85.04%, respectively, which are higher than those of the conventional control 68.20%; the aphid mouth decline rates after the medicines of examples 1-4 are 75.11%, 80.72%, 84.64% and 77.14%, respectively, which are higher than 60.30% of the conventional control, and the control effects corresponding to examples 1-4 are 80.50%, 83.47%, 87.73% and 84.00%, respectively, which are higher than 71.08% of the conventional control.
Therefore, the special auxiliary agent can achieve obvious synergism in the root irrigation and pesticide application prevention and treatment in the field by being matched with the pesticide preparation.
Table 2 examples 1-4 synergistic effects on sulfoxaflor and flonicamid for controlling bemisia tabaci and aphid in cotton
Example 10
The embodiment is a use method.
The special auxiliary agent for improving the root irrigation and pesticide application control effects of the embodiments 1-7 is adopted. The special auxiliary agent is diluted by adding water, then the target pesticide preparation is added according to a preset proportion, and the mixture is poured into a preset root irrigation pesticide application medicine box after being uniformly mixed, so that the pesticide can be applied.
In addition to the embodiments described above, other embodiments of the invention are possible. All technical schemes formed by equivalent substitution or equivalent transformation fall within the protection scope of the invention.
Claims (5)
1. The special auxiliary agent for improving root irrigation and pesticide application prevention and control effects is characterized by comprising the following components in percentage by weight:
supplementing 100% with water;
the polysaccharide is one or more than two of guar gum, hydroxypropyl guar ammonium salt, locust bean gum and sophorolipid;
the film forming agent is one or a mixture of more than two of carboxymethyl cellulose, dodecanol ester and sodium alginate;
the cross-linking agent is one or a mixture of polyethylene glycol and polyvinyl alcohol;
the thickener is one or more than two of xanthan gum, carrageenan, gelatin and Arabic gum;
the pH regulator is one or more of citric acid, acetic acid, sodium hydroxide and sodium bicarbonate.
2. The auxiliary agent according to claim 1, wherein the special auxiliary agent for improving root irrigation and pesticide application control effect comprises the following components in percentage by weight:
the water is used for supplementing 100 percent.
3. The method for preparing the special auxiliary agent for improving root irrigation and pesticide application prevention and control effects according to claim 1 or 2, which is characterized by comprising the following steps:
firstly, dissolving polysaccharide in a proper amount of water, and uniformly stirring;
and step two, adding a thickening agent, a film forming agent and a crosslinking agent into the mixed solution obtained in the step one under the stirring condition, adding a pH regulator, uniformly mixing, naturally cooling to the ambient temperature, and supplementing water to obtain the finished product.
4. A method of preparation according to claim 3, wherein in the first step the water is at a temperature of 40 ℃ to 80 ℃; in the second step, the stirring condition is 1000-3000rpm.
5. The method for using the special auxiliary agent for improving root irrigation and pesticide application prevention and control effects according to claim 1 or 2, which is characterized by comprising the following steps: the special auxiliary agent is diluted by adding water, then the target pesticide preparation is added according to a preset proportion, and the mixture is poured into a preset root irrigation and pesticide application medicine box after being uniformly mixed, so that the pesticide can be applied.
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