Agricultural auxiliary agent with anti-flocculation function as well as preparation method and application of agricultural auxiliary agent

Abstract

The invention discloses an agricultural assistant with an anti-flocculation function as well as a preparation method and application thereof, and belongs to the field of pesticide assistants and plant protection. The agricultural auxiliary agent comprises the following components in percentage content: 10 to 25 percent of phosphate ester surfactant, 25 to 60 percent of sulfonate surfactant, 5 to 15 percent of nonionic surfactant and the balance of diluent. The agricultural additive disclosed by the invention is safe and environment-friendly in raw materials and simple in formula process, and is mainly applied to barrel mixing of cationic pesticide products such as amino-oligosaccharin and polyoxin with other composition and dosage form products; the phenomena of flocculation, precipitation and the like cannot be generated after barrel mixing, the pesticide utilization rate can be effectively improved, the pesticide use amount is remarkably reduced, and therefore the purposes of reduction and synergism are achieved.

Description

Technical Field

[0001] The invention relates to the field of pesticide adjuvants and plant protection, and in particular to an agricultural adjuvant with anti-flocculation function and a preparation method and application thereof. Background Art

[0002] Aminoligosaccharides are a type of biological pesticide made from marine organisms using unique biotechnology. Its structure has the following characteristics: Aminoligosaccharides are oligosaccharides connected by D-glucosamine with β-1,4 glycosidic bonds. This means that the glucose units in its molecules are connected by specific chemical bonds to form a sugar chain. This connection method gives the aminooligosaccharides a certain stability and a specific spatial structure, which is of great significance for the development of its biological activity. Each D-glucosamine unit carries an amino group (-NH2). The presence of these amino groups makes the aminooligosaccharide molecule carry a positive charge as a whole, making it a positively charged cationic alkaline amino oligosaccharide in nature.

[0003] Polyoxin is a peptide pyrimidine nucleoside antibiotic that contains basic groups in its molecular structure. These basic groups can be protonated under certain conditions, so that the polyoxin molecule carries a positive charge and exhibits cationic properties. This cationic property enables it to attract negatively charged components on the surface of pathogen cells (such as cell wall components) through electrostatic attraction and other mechanisms during the prevention and treatment of diseases. This helps polyoxin better adhere to the surface of pathogens, thereby playing its role in inhibiting the growth of pathogens, such as interfering with physiological processes such as the synthesis of chitin in the pathogen cell wall, to achieve the effect of preventing and treating diseases.

[0004] In summary, both amino oligosaccharides and polyoxin are cationic pesticides. The presence of positive charge enables them to interact with negatively charged substances. Since many adjuvants in pesticide preparations, such as phosphates (salts), sulfonates (salts), polycarboxylates, calcium dodecylbenzene sulfonate, xanthan gum, etc., are negatively charged, and chemically synthesized raw materials mostly carry negatively charged groups, under the action of electrical neutralization, this type of cationic pesticide can effectively reduce the negative charge on the surface of these substances, reduce their zata potential, and cause them to destabilize and precipitate.

[0005] In modern agricultural production, in order to improve the effect of pest control, reduce the number of times of application and reduce costs, the use of pesticides in tank mixes has become a common way of applying pesticides. However, cationic pesticides containing amino oligosaccharides, polyoxin and other products may have adverse phenomena such as flocculation and precipitation when tank mixed with other products, which not only affects the effect of pesticide use, but also may cause pesticide damage to crops. In view of this, it is urgent to develop an adjuvant that can meet the compatibility requirements of cationic pesticide tank mixes. Summary of the invention

[0006] The purpose of the present invention is to provide an agricultural adjuvant with anti-flocculation function, and a preparation method and application thereof. The agricultural adjuvant of the present invention can be used as an anti-flocculation adjuvant for tank mixes containing cationic pesticides such as amino oligosaccharides and polyoxin. It can be used as a formulation adjuvant and can also be added as a tank mix adjuvant. The agricultural adjuvant has the advantages of green and environmentally friendly raw materials, simple formulation process, good tank mix compatibility, etc.

[0007] To solve the above technical problems, the present invention first provides an agricultural adjuvant with anti-flocculation function, comprising the following components in percentage: 10-25% of phosphate surfactant, 25-60% of sulfonate surfactant, 5-15% of nonionic surfactant, and the balance is diluent.

[0008] In the above-mentioned agricultural adjuvant, the sum of the mass of the phosphate surfactant and the sulfonate surfactant is 35-85% of the total mass of the agricultural adjuvant.

[0009] In the above-mentioned agricultural adjuvant, the phosphate surfactant is selected from at least one of alkylphenol polyoxyethylene ether phosphate, phenethylphenol polyoxyethylene ether phosphate, isomeric tridecanol polyoxyethylene ether phosphate and isooctyl alcohol ether phosphate; specifically, it can be phenethylphenol polyoxyethylene ether phosphate, isomeric tridecanol polyoxyethylene ether phosphate, alkylphenol polyoxyethylene ether phosphate or isooctyl alcohol ether phosphate; The sulfonate surfactant is selected from at least one of sodium dioctyl sulfosuccinate, sodium N-oleoyl-N-methyl taurate, alkylbenzene sulfonate amine salt, calcium alkylbenzene sulfonate, alkyl ethyl sulfonate and fatty acid methyl ester sulfonate; The sulfonate surfactant may specifically be any of the following: 1) alkylbenzenesulfonic acid amine salt and alkylethylsulfonate; more specifically, the mass ratio of the alkylbenzenesulfonic acid amine salt to the alkylethylsulfonate is 7:5; 2) calcium alkylbenzene sulfonate, alkyl ethyl sulfonate and sodium dioctyl sulfosuccinate; more specifically, the mass ratio of calcium alkylbenzene sulfonate, alkyl ethyl sulfonate and sodium dioctyl sulfosuccinate is 1:4:2; 3) alkylbenzenesulfonic acid amine salt and alkylethylsulfonate; more specifically, the mass ratio of the alkylbenzenesulfonic acid amine salt to the alkylethylsulfonate is 3:4; 4) sodium N-oleoyl-N-methyl taurate and alkyl ethyl sulfonate; more specifically, the mass ratio of sodium N-oleoyl-N-methyl taurate to alkyl ethyl sulfonate is 3:4; 5) sodium salt of dioctyl sulfonate succinate and alkyl ethyl sulfonate; more specifically, the mass ratio of the sodium salt of dioctyl sulfonate succinate to the alkyl ethyl sulfonate is 2:3; 6) calcium alkylbenzene sulfonate and alkyl ethyl sulfonate; more specifically, the mass ratio of calcium alkylbenzene sulfonate to alkyl ethyl sulfonate is 1:8; 7) calcium alkylbenzene sulfonate and fatty acid methyl ester sulfonate; more specifically, the mass ratio of the calcium alkylbenzene sulfonate to the fatty acid methyl ester sulfonate is 1:4; The nonionic surfactant is selected from at least one of alkylphenol polyoxyethylene ether, stearyl alcohol polyoxyethylene ether, cetyl alcohol polyoxyethylene ether, lauryl alcohol polyoxyethylene ether, isomeric alcohol polyoxyethylene ether, octylphenyl polyoxyethylene ether and azone; The nonionic surfactant may specifically be any of the following: 1) Alkylphenol polyoxyethylene ether; 2) isomeric alcohol polyoxyethylene ether and lauryl alcohol polyoxyethylene ether; more specifically, the mass ratio of the isomeric alcohol polyoxyethylene ether to the lauryl alcohol polyoxyethylene ether is 3:10; 3) isomeric alcohol polyoxyethylene ether and cetyl alcohol polyoxyethylene ether; more specifically, the mass ratio of the isomeric alcohol polyoxyethylene ether to the cetyl alcohol polyoxyethylene ether is 3:10; 4) aqueous azone and octylphenyl polyoxyethylene ether; more specifically, the mass ratio of the aqueous azone and octylphenyl polyoxyethylene ether is 1:2; 5) Cetyl alcohol polyoxyethylene ether; 6) Alkylphenol polyoxyethylene ether; the diluent is selected from at least one of ethylene glycol, propylene glycol, triethylene glycol monobutyl ether, propylene glycol methyl ether and water.

[0010] The above-mentioned agricultural adjuvant can be any of the following: 1) 25% phenylethylphenol polyoxyethylene ether phosphate, 35% alkylbenzenesulfonic acid amine salt, 25% alkylethyl sulfonate, 15% alkylphenol polyoxyethylene ether; 2) Isotridecyl alcohol polyoxyethylene ether phosphate 10%, alkylbenzene sulfonate calcium 5%, alkyl ethyl sulfonate 20%, sulfonated dioctyl sodium succinate 10%, isomeric alcohol polyoxyethylene ether 3%, lauryl alcohol polyoxyethylene ether 10%, ethylene glycol to make up 100%; 3) Isotridecyl alcohol polyoxyethylene ether phosphate 15%, alkylbenzene sulfonic acid amine salt 15%, alkyl ethyl sulfonate 20%, isomeric alcohol polyoxyethylene ether 3%, cetyl alcohol polyoxyethylene ether 10%, propylene glycol methyl ether 5%, ethylene glycol to make up 100%; 4) Alkylphenol polyoxyethylene ether phosphate 15%, sodium N-oleoyl-N-methyl taurate 15%, alkyl ethyl sulfonate 20%, azone 5%, octylphenyl polyoxyethylene ether 10%, ethylene glycol to make up 100%; 5) Alkylphenol polyoxyethylene ether phosphate 20%, dioctyl sulfonate sodium salt 10%, alkyl ethyl sulfonate 15%, cetyl alcohol polyoxyethylene ether 5%, ethylene glycol to make up 100%; 6) Alkylphenol polyoxyethylene ether phosphate 25%, alkylbenzene sulfonate calcium 5%, alkyl ethyl sulfonate 40%, alkylphenol polyoxyethylene ether 5%, water to make up 100%; 7) 25% isooctyl ether phosphate, 3% calcium alkylbenzene sulfonate, 20% fatty acid methyl ester sulfonate, 10% alkylphenol polyoxyethylene ether, and 100% ethylene glycol.

[0011] The present invention also provides a method for preparing the above agricultural preparation, comprising the following steps: The phosphate surfactant, the sulfonate surfactant, the nonionic surfactant and the diluent are mixed to obtain the agricultural preparation.

[0012] In the above-mentioned preparation method, the preparation method further comprises the steps of heating and stirring after mixing, and then filtering.

[0013] In the above preparation method, the heating temperature is 40-60°C and the heating time is 10-20 minutes.

[0014] Furthermore, the present invention also provides the use of the above agricultural preparation as a cationic pesticide formulation adjuvant; or, The above agricultural preparation is used as a tank-mixing adjuvant for cationic pesticides and other pesticide products.

[0015] In the above application, the cationic pesticide is at least one of amino oligosaccharides and polyoxin; The other pesticide products are at least one of brofenac suspension concentrate, fenbuconazole suspension concentrate, thiophanate-methyl water dispersible granules and difenoconazole water dispersible granules; specifically, they may be 5% brofenac suspension concentrate (Mitsui Chemicals AGRO), 24% difenoconazole suspension concentrate (CORTEVA), 3% thiophanate-methyl water dispersible granules (Shaanxi Xida Huate Technology Industrial Co., Ltd.) or 10% difenoconazole water dispersible granules (Syngenta).

[0016] The agricultural adjuvant of the present invention can be used as a formulation adjuvant or a tank-mixing adjuvant, and is mainly used in tank-mixing of cationic pesticide products with other compositions and formulation products.

[0017] Specifically, the cationic pesticides are mainly amino oligosaccharides and / or polyoxin.

[0018] The use of the above-mentioned agricultural adjuvant as an anti-flocculation adjuvant in a tank mix containing cationic pesticides such as amino oligosaccharides and / or polyoxin also falls within the protection scope of the present invention.

[0019] Compared with the prior art, the present invention has the following beneficial effects: (1) Improved the stability of pesticide formulations: After adding anti-flocculation additives to the formula, it can remain stable for a long time without problems such as stratification and precipitation, which helps to maintain the stability of the formula after tank mixing.

[0020] (2) Enhanced spraying effect: Since the uniform dispersion of the liquid medicine can be maintained, the aggregation and blockage of solid particles in the mixed liquid medicine at the nozzle can be effectively reduced, ensuring the smooth progress of the spraying operation and saving operation time and labor costs.

[0021] (3) Enhanced tank mix compatibility: When used as a tank mix adjuvant, it can improve the compatibility between different pesticides; effectively avoid the adverse phenomena such as flocculation and precipitation caused by the interaction between different components, making it easier for farmers to apply the pesticide in one go and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a photograph of 5% amino oligosaccharide SL and 5% bromofenac suspension after being mixed in a tank and left to stand for 0.5 h; the left side is blank, and the right side contains the agricultural adjuvant of Example 1.

[0023] Figure 2 This is a photograph of a tank mix of 5% polyoxin SL and 24% fenbuconazole suspension after standing for 0.5 h; the left side is blank, and the right side contains the agricultural adjuvant of Example 2.

[0024] Figure 3 The following are photos of 5% amino oligosaccharide SL and 3% thiophanate-methyl water dispersible granules after being tank-mixed and allowed to stand for 0.5 h and 2 h; the left side is blank, and the right side is the one with the agricultural adjuvant of Example 5 added.

[0025] Figure 4 The following are photos of a barrel mix of 5% polyoxin SL and 10% difenoconazole water dispersible granules after standing for 0.5 h and 2 h; the left side is blank, and the right side is the one with the agricultural adjuvant of Example 7 added. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with specific embodiments. The given examples are only for illustrating the present invention, but not for limiting the scope of the present invention.

[0027] The experimental methods in the following examples are all conventional methods unless otherwise specified.

[0028] The quantitative tests in the following examples were all repeated three times, and the results were averaged.

[0029] Unless otherwise specified, the materials and reagents used in the following examples can be obtained from commercial sources.

[0030] Example 1 Calculated by mass percentage, 25% of 601P (phenylethylphenol polyoxyethylene ether phosphate, Nanjing Taihua Chemical Co., Ltd.), 35% of DYAY / 03 (alkylbenzenesulfonic acid amine salt, Nantong Deyi Chemical Co., Ltd.), 25% of CEREWIN SV3427 (alkylethyl sulfonate, Nantong Deyi Chemical Co., Ltd.), and 15% of OP-50 (alkylphenol polyoxyethylene ether, Jiangsu Anyi Chemical Co., Ltd.) were weighed. The above raw materials were mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0031] Example 2 In terms of mass percentage, 1310P (isomeric tridecanol polyoxyethylene ether phosphate, Nantong Deyi Chemical Co., Ltd.) 10%, 505# (calcium alkylbenzene sulfonate, Nantong Deyi Chemical Co., Ltd.) 5%, Agnique SLES 270 (alkyl ethyl sulfonate, BASF) 20%, FTRT T50 (sodium salt of dioctyl sulfonated succinate, Guangzhou Fangzhong Chemical Co., Ltd.) 10%, WEREWIN S20V (isomeric alcohol polyoxyethylene ether, Sasol) 3%, MEO-20 (lauryl alcohol polyoxyethylene ether, Jiangsu Hai'an Petrochemical Plant) 10%, and ethylene glycol (diluent, China Petrochemical Corporation) are added to make up to 100%. The above raw materials are mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0032] Example 3 In terms of mass percentage, 1310P (isomeric tridecanol polyoxyethylene ether phosphate, Nantong Deyi Chemical Co., Ltd.) 15%, DYAY / 03 (alkylbenzene sulfonic acid amine salt, Nantong Deyi Chemical Co., Ltd.) 15%, AESA (alkyl ethyl sulfonate, Zanyu Technology Group Co., Ltd.) 20%, WEREWIN S20V (isomeric alcohol polyoxyethylene ether, Sasol) 3%, OS-15 (cetyl alcohol polyoxyethylene ether, Jiangsu Hai'an Petrochemical Plant) 10%, propylene glycol methyl ether (diluent, DOW) 5%, ethylene glycol (diluent, China Petrochemical Corporation) to make up to 100%. The above raw materials were mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0033] Example 4 In terms of mass percentage, OP-10P (alkylphenol polyoxyethylene ether phosphate, Nantong Deyi Chemical Co., Ltd.) 15%, Geropon T-77 (sodium N-oleoyl-N-methyl taurate, SOLVAY) 15%, HDB-D80 (alkyl ethyl sulfonate, Chuzhou Debang Chemical Co., Ltd.) 20%, aqueous azone (azone, Ji'an Shengda Fragrance Oil Co., Ltd.) 5%, X-100 (octylphenyl polyoxyethylene ether, Jiangsu Hai'an Petrochemical Plant) 10%, ethylene glycol (diluent, China Petrochemical Corporation) to make up to 100%. The above raw materials are mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0034] Example 5 In terms of mass percentage, 601P (alkylphenol polyoxyethylene ether phosphate, Nantong Deyi Chemical Co., Ltd.) 20%, FTRT T50 (sulfonated dioctyl succinate sodium salt, Guangzhou Fangzhong Chemical Co., Ltd.) 10%, Texapon ALES 3-70A (alkyl ethyl sulfonate, BASF) 15%, O-20 (cetyl alcohol polyoxyethylene ether, Jiangsu Hai'an Petrochemical Plant) 5%, ethylene glycol (diluent, China Petrochemical Corporation) to make up to 100%. The above raw materials were mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0035] Example 6 In terms of mass percentage, weigh 25% of 601P (alkylphenol polyoxyethylene ether phosphate, Nantong Deyi Chemical Co., Ltd.), 5% of 505# (alkylbenzene sulfonate calcium, Nantong Deyi Chemical Co., Ltd.), 40% of CEREWIN SV3427 (alkyl ethyl sulfonate, Nantong Deyi Chemical Co., Ltd.), 5% of OP-10 (alkylphenol polyoxyethylene ether, Jiangsu Hai'an Petrochemical Plant), and make up to 100% with deionized water. The above raw materials are mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0036] Example 7 In terms of mass percentage, weigh 25% of AEP (isooctanol ether phosphate, Jiangsu Anyi Chemical Co., Ltd.), 505# (calcium alkylbenzene sulfonate, Nantong Deyi Chemical Co., Ltd.), 20% of MES (methyl fatty acid ester sulfonate, Nantong Deyi Chemical Co., Ltd.), 10% of OS-15 (alkylphenol polyoxyethylene ether, Jiangsu Hai'an Petrochemical Plant), and 100% of ethylene glycol (diluent, China Petrochemical Corporation). The above raw materials are mixed in proportion, heated to 40°C, stirred for 10 minutes until transparent and uniform, and filtered to obtain agricultural adjuvant.

[0037] In the following Examples 8-11, unless otherwise specified, all other percentages are by mass.

[0038] Example 8: Tank mix compatibility of test agents (used as formulation aids) Test agent: The agricultural adjuvants prepared in Examples 1 to 7 were selected as formulation adjuvants, and 5% amino oligosaccharide SL was prepared respectively, and the adjuvant addition amount was 15%; and a blank was used for control. The specific formula is shown in Table 1 (the total amount in Table 1 is 100g).

[0039] Table 1 5% amino oligosaccharide SL formula composition (unit: g) materials 1# 2# 3# 4# 5# 6# 7# CK 90% Aminooligosaccharide TC 5.6 5.6 5.6 5.6 5.6 5.6 5.6 5.6 Example 1 Auxiliary agent 15 - - - - - - - Example 2 Auxiliary Agent - 15 - - - - - - Example 3 Auxiliary Agent - - 15 - - - - - Example 4 Auxiliary Agent - - - 15 - - - - Example 5 Auxiliary Agent - - - - 15 - - - Example 6 Auxiliary Agent - - - - - 15 - - Example 7 Auxiliary Agent - - - - - - 15 - lactic acid 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Ethylene glycol 5 5 5 5 5 5 5 5 water Make up 100 Make up 100 Make up 100 Make up 100 Make up 100 Make up 100 Make up 100 Make up 100 Note: 90% amino oligosaccharide TC: Zhongxiang Poinsettia Plant Immunity Technology Co., Ltd.; lactic acid: Henan Jindan Lactic Acid Technology Co., Ltd.; ethylene glycol: China Petrochemical Corporation.

[0040] Test method: Mix 5% bromofenac suspension and 5% amino oligosaccharide SL in a 1:1 ratio, dilute by 200 times with water, mix thoroughly, and let stand for 0.5h to observe the state of the mixed solution. Figure 1 The results are shown in Table 2.

[0041] Table 2 Tank mix compatibility test of each agent at specified dilution concentration

[0042] As can be seen from Table 2, when the agricultural adjuvants prepared in Examples 1 to 7 are used as formulation adjuvants, they have significant compatibility with 200-fold diluted tank mix of 5% amino oligosaccharide SL and 5% bromofenac suspension, and can effectively prevent the formation of flocculation and precipitation, which is conducive to the full utilization and effectiveness of the liquid medicine.

[0043] The above 1#~7# 5% oligoaminosaccharides SL were tested with reference to the quality technical indicators specified in the second part of NY / T 2889.2-2016, and all the test indicators were qualified.

[0044] Example 9: Tank mix compatibility of test agents (used as formulation aids) Test agent: The agricultural adjuvant prepared in Examples 1 to 7 was selected as the formulation adjuvant, and 5% polyoxin SL was prepared respectively, and the adjuvant addition amount was 20%; and a blank was used for control. The specific formula is shown in Table 3 (the total amount in Table 3 is 100g).

[0045] Table 3 Composition of 5% Polyoxin SL formula (unit: g)

[0046] Note: 35% polyoxin TC: Liaoning Kesheng Biochemical Products Co., Ltd.; Ethylene glycol: China Petrochemical Corporation.

[0047] Test method: Mix 24% fenbuconazole suspension and 5% polyoxin SL in a 1:1 ratio, dilute by 200 times with water, mix thoroughly, and let stand for 0.5 h to observe the state of the mixed solution. Figure 2 The results are shown in Table 4.

[0048] Table 4 Tank mix compatibility test of each agent at specified dilution concentration

[0049] As can be seen from Table 4, when the agricultural adjuvants prepared in Examples 1 to 7 are used as formulation adjuvants, they have significant compatibility with a 200-fold dilution tank mix of 5% polyoxin SL and 24% fenbuconazole suspension, and can effectively prevent the formation of flocculation and precipitation, which is conducive to the full utilization and efficacy of the liquid medicine.

[0050] The above 1#~7# 5% polyoxin SL were tested with reference to the quality technical indicators specified in relevant enterprise standards, and all the test indicators were qualified.

[0051] Example 10: Tank mix compatibility of test agents (used as tank mix adjuvant) Test agent: 5% amino oligosaccharide SL (Weifang Huanuo Biotechnology Co., Ltd.), the agricultural adjuvant prepared in Examples 1 to 7 was selected as the tank-mixed adjuvant, and a blank was used as a control.

[0052] Test method: The agricultural adjuvants prepared in Examples 1 to 7 were diluted with water to 200 times of their mass, and then 5% amino oligosaccharide SL was added and mixed evenly, and finally 3% thiophanate-methyl water dispersible granules were added and mixed in a bucket. Both agents were diluted 50 times of their mass, mixed thoroughly, and then left to stand for 0.5h and 2h, respectively, to observe the state of the mixed liquid. Figure 3 The results are shown in Table 5.

[0053] Table 5 Tank mix compatibility test of each agent at specified dilution concentration

[0054] As can be seen from Table 5, when the agricultural adjuvants prepared in Examples 1 to 7 are used as tank-mix adjuvants, they have significant compatibility with 5% amino oligosaccharide SL and 3% thiophanate-methyl water-dispersible granules in a 50-fold tank mix, can effectively prevent the formation of flocculation and precipitation, and are conducive to the full utilization and efficacy of the liquid medicine.

[0055] Example 11: Tank mix compatibility of test agents (used as tank mix adjuvant) Test agent: 5% polyoxin SL (Liaoning Kesheng Biochemical Products Co., Ltd.), the agricultural adjuvant prepared in Examples 1 to 7 was selected as the tank-mixed adjuvant, and a blank was used as a control.

[0056] Test method: The agricultural adjuvants prepared in Examples 1 to 7 were diluted with water to 200 times of their mass, then 5% polyoxin SL was added and mixed evenly, and finally 10% difenoconazole water dispersible granules were added and mixed in a bucket. Both agents were diluted 50 times of their mass, mixed thoroughly, and then left to stand for 0.5h and 2h, respectively, to observe the state of the mixed liquid. Figure 4 The results are shown in Table 6.

[0057] Table 6 Tank mix compatibility test of each agent at specified dilution concentration

[0058] As can be seen from Table 6, when the agricultural adjuvants prepared in Examples 1 to 7 are used as tank-mix adjuvants, they have significant compatibility with a 50-fold dilution of a tank mix of 5% polyoxin SL and 10% difenoconazole water-dispersible granules, and can effectively prevent the formation of flocculation and precipitation, which is helpful for the full utilization and efficacy of the drug solution.

[0059] The above test results show that the agricultural adjuvant with anti-flocculation function of the present invention has excellent compatibility and stability for cationic pesticide products such as amino oligosaccharides and polyoxin in tank mixing with other compositions and dosage forms of products. It can be used as a formulation adjuvant or added as a tank mixing adjuvant.

[0060] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0061] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. An agricultural adjuvant with anti-flocculation function, comprising the following components in percentage: 10-25% of phosphate surfactant, 25-60% of sulfonate surfactant, 5-15% of nonionic surfactant, and the balance of diluent.

2. The agricultural adjuvant according to claim 1, characterized in that: The sum of the masses of the phosphate surfactant and the sulfonate surfactant is 35-85% of the total mass of the agricultural adjuvant.

3. The agricultural adjuvant according to claim 1 or 2, characterized in that: The phosphate surfactant is selected from at least one of alkylphenol polyoxyethylene ether phosphate, phenethylphenol polyoxyethylene ether phosphate, isomeric tridecanol polyoxyethylene ether phosphate and isooctyl alcohol ether phosphate; The sulfonate surfactant is selected from at least one of sodium dioctyl sulfosuccinate, sodium N-oleoyl-N-methyl taurate, alkylbenzene sulfonate amine salt, calcium alkylbenzene sulfonate, alkyl ethyl sulfonate and fatty acid methyl ester sulfonate; The nonionic surfactant is selected from at least one of alkylphenol polyoxyethylene ether, stearyl alcohol polyoxyethylene ether, cetyl alcohol polyoxyethylene ether, lauryl alcohol polyoxyethylene ether, isomeric alcohol polyoxyethylene ether, octylphenyl polyoxyethylene ether and azone; The diluent is selected from at least one of ethylene glycol, propylene glycol, triethylene glycol monobutyl ether, propylene glycol methyl ether and water.

4. The agricultural adjuvant according to claims 1-3, characterized in that: The agricultural adjuvant is any of the following: 1) 25% phenylethylphenol polyoxyethylene ether phosphate, 35% alkylbenzenesulfonic acid amine salt, 25% alkylethyl sulfonate, 15% alkylphenol polyoxyethylene ether; 2) Isotridecyl alcohol polyoxyethylene ether phosphate 10%, alkylbenzene sulfonate calcium 5%, alkyl ethyl sulfonate 20%, sulfonated dioctyl sodium succinate 10%, isomeric alcohol polyoxyethylene ether 3%, lauryl alcohol polyoxyethylene ether 10%, ethylene glycol to make up 100%; 3) Isotridecyl alcohol polyoxyethylene ether phosphate 15%, alkylbenzene sulfonic acid amine salt 15%, alkyl ethyl sulfonate 20%, isomeric alcohol polyoxyethylene ether 3%, cetyl alcohol polyoxyethylene ether 10%, propylene glycol methyl ether 5%, ethylene glycol to make up 100%; 4) Alkylphenol polyoxyethylene ether phosphate 15%, sodium N-oleoyl-N-methyl taurate 15%, alkyl ethyl sulfonate 20%, azone 5%, octylphenyl polyoxyethylene ether 10%, ethylene glycol to make up 100%; 5) Alkylphenol polyoxyethylene ether phosphate 20%, dioctyl sulfonate sodium salt 10%, alkyl ethyl sulfonate 15%, cetyl alcohol polyoxyethylene ether 5%, ethylene glycol to make up 100%; 6) Alkylphenol polyoxyethylene ether phosphate 25%, alkylbenzene sulfonate calcium 5%, alkyl ethyl sulfonate 40%, alkylphenol polyoxyethylene ether 5%, deionized water to make up 100%; 7) 25% isooctyl ether phosphate, 3% calcium alkylbenzene sulfonate, 20% fatty acid methyl ester sulfonate, 10% alkylphenol polyoxyethylene ether, and 100% ethylene glycol.

5. The method for preparing the agricultural formulation according to any one of claims 1 to 4, comprising the following steps: The phosphate surfactant, the sulfonate surfactant, the nonionic surfactant and the diluent are mixed to obtain the agricultural preparation.

6. The preparation method according to claim 5, characterized in that: The preparation method further comprises the steps of heating and stirring after mixing, and then filtering.

7. The preparation method according to claim 6, characterized in that: The heating temperature is 40-60°C and the heating time is 10-20 minutes.

8. Use of the agricultural formulation according to any one of claims 1 to 4 as a cationic pesticide formulation adjuvant; or, Use of the agricultural formulation according to any one of claims 1 to 4 as a tank-mixing adjuvant for cationic pesticides and other pesticide products.

9. The use according to claim 8, characterized in that: The cationic pesticide is at least one of amino oligosaccharides and polyoxin; The other pesticide product is at least one of bromofenac suspension concentrate, fenthion suspension concentrate, thiamethoxam water dispersible granules and difenoconazole water dispersible granules.

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