CN112335668A

CN112335668A - Weeding composition, preparation method and application thereof

Info

Publication number: CN112335668A
Application number: CN202011257620.5A
Authority: CN
Inventors: 李丹丹; 许映蓉; 董垒; 赵文磊; 杨煜; 李璟; 贲震东; 吴金泉; 蒋阳阳
Original assignee: Nantong Jiangshan Agrochemical And Chemicals Co ltd
Current assignee: Nantong Jiangshan Agrochemical And Chemicals Co ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-02-09
Anticipated expiration: 2040-11-11
Also published as: CN112335668B

Abstract

The invention relates to the technical field of pesticides, and particularly relates to a weeding composition, a preparation method and application thereof. A herbicidal composition comprising A, B two active ingredients; the A is the bensulfuron methyl; the B is selected from at least one of butachlor, pretilachlor, acetochlor, metolachlor, anilofos, pendimethalin, butralin, bentazone, pyrazosulfuron-ethyl and cyclosulfamuron. The weight ratio of the A, B two active components is 1: (0.02-50). The invention provides a weeding composition which can be used after rice is sowed and before rice seedlings, can effectively control the growth of weeds, reduce the dosage and the cost, improve the weeding effect and delay the generation of resistance; meanwhile, by optimizing the auxiliary agent, the prepared suspoemulsion has better physical stability.

Description

Weeding composition, preparation method and application thereof

Technical Field

The invention relates to the technical field of pesticides, and particularly relates to a weeding composition, a preparation method and application thereof.

Background

Herbicide varieties containing a single active ingredient have different degrees of defects in the agricultural weeding process: the herbicide is easy to generate drug resistance after continuous use, has an insufficiently broad weeding spectrum, can only control monocotyledonous weeds or dicotyledonous weeds, or can only control emerging weeds or non-emerging weeds, and cannot control both the monocotyledonous weeds and the dicotyledonous weeds. By compounding two or more active components, the control effect can be improved, the use amount of active ingredients is reduced, the control cost is saved, the generation of drug resistance of weeds is delayed, the service life of the herbicide is prolonged, and the pollution to the environment is reduced.

Bensulfuron methyl, chemical name: 3- (2-chloro-4-fluoro-5- (3-methyl-2, 6-dioxo-4-trifluoromethyl-3, 6-dihydropyrimidin-1 (2H) -yl) phenyl) -5-methyl-4, 5-dihydroisoxazole-5-carboxylic acid ethyl ester is the combination of uracil and isoxazole structure, has better herbicidal activity compared with saflufenacil, and can effectively prevent and kill annual and perennial weeds in gardens and non-cultivated lands.

The bensulfuron methyl is originally only used for preventing and removing weeds in orchards and non-cultivated lands, can be used before seedlings after rice sowing by compounding with other raw medicines, can effectively control the growth of weeds, has an effect superior to that of the current common varieties, and can reduce the dosage, improve the weeding effect and delay the generation of resistance after compounding.

Disclosure of Invention

In order to solve the above technical problems, the first aspect of the present invention provides a herbicidal composition comprising A, B two active ingredients; the A is the bensulfuron methyl; the B is selected from at least one of butachlor, pretilachlor, acetochlor, metolachlor, anilofos, pendimethalin, butralin, bentazone, pyrazosulfuron-ethyl and cyclosulfamuron.

As a preferable technical scheme of the invention, the weight ratio of the A, B two active components is 1: (0.02-50).

As a preferable technical scheme, the formulation of the weeding composition is one of dispersible oil suspending agent and suspoemulsion.

As a preferable technical scheme of the invention, the weeding composition is applied to the control of annual weeds in the paddy field.

The second aspect of the present invention provides a herbicide comprising the above herbicidal composition; the content of the weeding composition is 20-45 wt%.

The invention provides a herbicide suspoemulsion, which is prepared from the following raw materials in parts by weight: 20-40% of the weeding composition, 5-15% of solvent, 3-8% of emulsifier, 5-13% of wetting dispersant, 0.5-5% of antifreezing agent, 0.01-0.5% of thickening agent, 0.05-0.5% of preservative, 0.05-0.5% of defoaming agent and the balance of water to 100%.

As a preferable technical solution of the present invention, the emulsifier is at least one selected from castor oil polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, tristyrylphenol polyoxypropylene polyoxyethylene block polymer, sorbitan stearate, and polyoxyethylene sorbitan stearate.

In a preferred embodiment of the present invention, the wetting dispersant is at least one selected from the group consisting of a polycarboxylate, a sulfonate, an alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, and an alkyl sulfate.

In a preferred embodiment of the present invention, the wetting dispersant is a polycarboxylate and/or a sulfonate.

As a preferable technical scheme, the preparation method of the herbicide suspending agent comprises the following steps:

(1) mixing and emulsifying the active component A, a solvent, an emulsifier and at least one third of water to obtain an aqueous emulsion;

(2) mixing the active component B, the dispersing wetting agent and the rest water, and sanding to obtain a suspending agent;

(3) and (3) mixing the aqueous emulsion and the suspending agent, adding the thickening agent, the preservative, the antifreezing agent and the defoaming agent, and uniformly mixing to obtain the aqueous emulsion.

Advantageous effects

The invention provides a weeding composition which can be used after rice is sowed and before rice seedlings, can effectively control the growth of weeds, reduce the dosage and the cost, improve the weeding effect and delay the generation of resistance; meanwhile, by optimizing the auxiliary agent, the prepared suspoemulsion has better physical stability.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The term "prepared from …" as used herein is synonymous with "comprising". The terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, as used herein, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase is intended to claim as closed, meaning that it does not contain materials other than those described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein throughout the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received for modification without substantial change in the basic function to which the invention is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In a first aspect of the present invention there is provided a herbicidal composition comprising A, B two active ingredients; the A is the bensulfuron methyl; the B is selected from at least one of butachlor, pretilachlor, acetochlor, metolachlor, anilofos, pendimethalin, butralin, bentazone, pyrazosulfuron-ethyl and cyclosulfamuron.

In a preferred embodiment, the A, B weight ratio of the two active components is 1: (0.02-50).

In a more preferred embodiment, the A, B weight ratio of the two active components is 1: (1-10).

In a most preferred embodiment, the A, B weight ratio of the two active components is 1: 6.

in a preferred embodiment, the herbicidal composition is in the form of one of a dispersible oil suspension and a suspoemulsion.

In a preferred embodiment, the herbicidal composition is applied for the control of annual weeds in paddy fields.

In a preferred embodiment, the herbicidal composition is present in an amount of 35 wt%.

In a preferred embodiment, the herbicide suspoemulsion is prepared from the following raw materials in percentage by weight: 35% of the weeding composition, 10% of solvent, 6% of emulsifier, 9% of wetting dispersant, 3% of antifreezing agent, 0.12% of thickening agent, 0.2% of preservative, 0.2% of defoaming agent and the balance of water to 100%.

Solvent(s)

In the present invention, the solvent is not particularly limited, and any solvent suitable for a suspoemulsion system is suitable for the present invention.

In a preferred embodiment, the solvent is cyclohexanone.

Emulsifier

In the invention, the emulsifier is at least one selected from castor oil polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, tristyrylphenol polyoxypropylene polyoxyethylene block polymer, sorbitan stearate and polyoxyethylene sorbitan stearate.

In a preferred technical scheme, the emulsifier is castor oil polyoxyethylene ether.

In a more preferred embodiment, the castor oil ethoxylate has a hydroxyl number of from 80 to 100.

The Hydroxyl value is the number of milligrams of potassium hydroxide (KOH) corresponding to the Hydroxyl group in 1g of the sample, and is expressed as mgKOH/g.

In the present invention, the origin of the polyoxyethylene castor oil ether is not particularly limited, and may be mentioned Wenzhou Qingming chemical Co., Ltd., model number EL 20.

In the invention, the weight ratio of the solvent to the emulsifier is 1: (0.4-0.8).

In a more preferred embodiment, the weight ratio of solvent to emulsifier is 1: 0.6.

the inventor finds that the benconazole has good solubility in cyclohexanone, and intermolecular forces such as hydrogen bonds between the cyclohexanone and an emulsifier can obviously improve the surface tension of the emulsion in water, so that an oil phase is uniformly emulsified and dispersed in a water phase, and the dispersion stability is improved.

Wetting dispersant

In the present invention, the wetting dispersant is at least one selected from the group consisting of a polycarboxylate, a sulfonate, an alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, and an alkyl sulfate.

In a preferred embodiment, the wetting dispersant is a polycarboxylate and/or sulfonate.

In a preferred embodiment, the wetting dispersant is a combination of a polycarboxylate and a lignosulfonate in a weight ratio of 1: (0.5-2).

In a more preferred embodiment, the weight ratio of polycarboxylate to lignosulfonate is 1: 1.1.

in a more preferred embodiment, the polycarboxylate has a comb-like structure.

In the present invention, the source of the polycarboxylate is not particularly limited, and there may be mentioned Beijing broad-source agricultural chemical, Inc., model GY-D800, GY-D900, etc.

In the present invention, the source of the lignosulfonate is not particularly limited, and may be Beijing broad-source agricultural chemical Limited liability company, model GY-LDS, or the like.

The inventor finds that the system adopts polycarboxylate with a comb-shaped structure, the long carbon chain of the system has more active adsorption sites, such as acid groups, ester groups, sulfonic groups, ether and the like, the primisula bescens and other active components can be firmly adsorbed around the polycarboxylate through intermolecular force, and the branched chain of the polycarboxylate has a space repulsion function, so that the polycarboxylate can prevent irregular flocculation caused by aggregation of the active components, improve the dispersibility of the active components, establish a stable dispersion system and improve the stability of the suspoemulsion. Particularly after the suspending agent is compounded with sodium lignosulfonate for use, the interface free energy of raw pesticide particles is effectively reduced, the merging tendency among the pesticide particles is weakened, meanwhile, electric double layers are formed on the surfaces of the raw pesticide particles through self ionization, and the dispersed raw pesticide particles are stably suspended and dispersed in a suspending agent system by virtue of the steric hindrance formed by the electric double layers and the macromolecules, so that the suspending agent is not limited by external temperature, and the problems of layering and settlement cannot occur after long-time placement.

The inventor thinks that because the suspoemulsion is a thermodynamically unstable system, the invention improves the physical and chemical stability of the product, improves the utilization rate of the product and improves the weeding and control effects of the herbicide preparation by optimizing and reasonably compounding the emulsifying agent and the wetting dispersant; meanwhile, the formulation of the invention is a suspoemulsion, which combines the advantages of pesticide water-based agent type aqueous emulsion and suspending agent, the suspoemulsion has smaller and more stable suspended particles than the suspending agent, the aqueous emulsion contains a large amount of organic solvent, the suspoemulsion of the invention avoids the pollution of dust and harmful solvent of other formulations to the environment and people, and the suspoemulsion has lower cost and more stable performance than other formulations, thus greatly improving the safety and the pesticide effect.

Thickening agent

In the present invention, the thickener is not particularly limited, and xanthan gum, white carbon black, polyvinyl alcohol, organobentonite, magnesium aluminum silicate, and the like can be mentioned.

Preservative

In the present invention, the preservative is not particularly limited, and formaldehyde, benzoic acid, sodium benzoate, cason and the like can be mentioned.

Defoaming agent

In the present invention, the defoaming agent is not particularly limited, and silicone-based defoaming agents and the like can be mentioned.

In the invention, the preparation method of the herbicide suspoemulsion comprises the following steps:

The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.

Examples

Example 1

The embodiment 1 provides a herbicide suspoemulsion, which is prepared from the following raw materials in parts by weight: 35% of weeding composition, 10% of solvent, 6% of emulsifier, 9% of wetting dispersant, 3% of antifreezing agent, 0.12% of thickener, 0.2% of preservative, 0.2% of defoaming agent and the balance of water to 100%;

the weeding composition is a combination of pyriminobac and butachlor, and the weight ratio is 1: 6; the solvent is cyclohexanone; the emulsifier is castor oil polyoxyethylene ether which is purchased from Wenzhou Qingming chemical Co., Ltd, model number EL 20; the wetting dispersant is a combination of polycarboxylate and lignosulfonate, and the weight ratio of the wetting dispersant to the lignosulfonate is 1: 1.1; the polycarboxylate was purchased from Beijing, Guangyuan agricultural chemistry, LLC, model GY-D800; the lignosulfonate is purchased from Beijing Guangyuan agricultural chemistry, LLC, model GY-LDS; the thickening agent is xanthan gum; the preservative is sodium humate; the antifreezing agent is ethylene glycol; the defoaming agent is a silicone defoaming agent and is selected from ByK024 Germany.

The preparation method of the herbicide suspending agent comprises the following steps:

(1) mixing and emulsifying the benconazole, the solvent, the emulsifier and at least one third of water to obtain an aqueous emulsion;

(2) mixing butachlor, a dispersing wetting agent and the rest water, and sanding to obtain a suspending agent;

Example 2

The embodiment 2 provides a herbicide suspoemulsion, which is prepared from the following raw materials in parts by weight: 20% of weeding composition, 5% of solvent, 3% of emulsifier, 5% of wetting dispersant, 0.5% of antifreezing agent, 0.01% of thickening agent, 0.05% of preservative, 0.05% of defoaming agent and the balance of water to 100%;

the weeding composition is a combination of pyriminobac and butachlor, and the weight ratio is 1: 0.02; the solvent is cyclohexanone; the emulsifier is castor oil polyoxyethylene ether which is purchased from Wenzhou Qingming chemical Co., Ltd, model number EL 20; the wetting dispersant is a combination of polycarboxylate and lignosulfonate, and the weight ratio of the wetting dispersant to the lignosulfonate is 1: 0.5; the polycarboxylate was purchased from Beijing, Guangyuan agricultural chemistry, LLC, model GY-D800; the lignosulfonate is purchased from Beijing Guangyuan agricultural chemistry, LLC, model GY-LDS; the thickening agent is xanthan gum; the preservative is sodium humate; the antifreezing agent is ethylene glycol; the defoaming agent is a silicone defoaming agent and is selected from ByK024 Germany.

Example 3

Embodiment 3 provides a herbicidal suspoemulsion, which is prepared from the following raw materials in parts by weight: 40% of weeding composition, 15% of solvent, 8% of emulsifier, 13% of wetting dispersant, 5% of antifreezing agent, 0.5% of thickener, 0.5% of preservative, 0.5% of defoaming agent and the balance of water to 100%;

the weeding composition is a combination of pyriminobac and butachlor, and the weight ratio is 1: 50; the solvent is cyclohexanone; the emulsifier is castor oil polyoxyethylene ether which is purchased from Wenzhou Qingming chemical Co., Ltd, model number EL 20; the wetting dispersant is a combination of polycarboxylate and lignosulfonate, and the weight ratio of the wetting dispersant to the lignosulfonate is 1: 2; the polycarboxylate was purchased from Beijing, Guangyuan agricultural chemistry, LLC, model GY-D800; the lignosulfonate is purchased from Beijing Guangyuan agricultural chemistry, LLC, model GY-LDS; the thickening agent is xanthan gum; the preservative is sodium humate; the antifreezing agent is ethylene glycol; the defoaming agent is a silicone defoaming agent and is selected from ByK024 Germany.

Example 4

Example 4 differs from example 1 in that the solvent is methyl oleate.

Example 5

Example 5 differs from example 1 in that the emulsifier is sorbitan monooleate.

Example 6

Example 6 differs from example 1 in that the weight ratio of solvent to emulsifier is 1: 0.1.

example 7

Example 7 differs from example 1 in that the wetting dispersant is a polycarboxylate having a comb-like structure, available from Guangyaomai agricultural chemical company, Inc. of Beijing, under model number GY-D800.

Example 8

Example 8 differs from example 1 in that the polycarboxylate has no comb-like structure and is purchased from shaoxing zhe creative chemical company, inc, model NT.

Example 9

Example 9 differs from example 1 in that the wetting dispersant is lignosulfonate.

Example 10

Embodiment 10 provides a herbicidal suspoemulsion, which is prepared from the following raw materials in parts by weight: 35% of weeding composition, 10% of solvent, 6% of emulsifier, 9% of wetting dispersant, 3% of antifreezing agent, 0.12% of thickener, 0.2% of preservative, 0.2% of defoaming agent and the balance of water to 100%;

the weeding composition is a combination of pyriminobac and propisochlor, and the weight ratio is 1: 6; the solvent is cyclohexanone; the emulsifier is castor oil polyoxyethylene ether which is purchased from Wenzhou Qingming chemical Co., Ltd, model number EL 20; the wetting dispersant is a combination of polycarboxylate and lignosulfonate, and the weight ratio of the wetting dispersant to the lignosulfonate is 1: 1.1; the polycarboxylate was purchased from Beijing, Guangyuan agricultural chemistry, LLC, model GY-D800; the lignosulfonate is purchased from Beijing Guangyuan agricultural chemistry, LLC, model GY-LDS; the thickening agent is xanthan gum; the preservative is sodium humate; the antifreezing agent is ethylene glycol; the defoaming agent is a silicone defoaming agent and is selected from ByK024 Germany.

(2) mixing propisochlor, a dispersing wetting agent and the rest water, and sanding to obtain a suspending agent;

Performance testing

1. Low temperature stability test

The herbicidal suspoemulsion prepared in example was stored in a refrigerator at-5 ℃ for 7 days, and after returning to room temperature, dispersibility, suspensibility were measured, and fluidity of the suspoemulsion and precipitation of crystals were observed.

2. Heat storage stability test

The herbicidal suspoemulsion prepared in example was stored in an incubator at 54 ℃ for 14 days, and after returning to room temperature, dispersibility and suspensibility were measured, and whether the suspoemulsion had crystal precipitation or not was observed.

Dispersibility and suspensibility test method: in a 250 mm cylindrical container with CIPAC (International Agrochemical analysis Association) standard water D, 1 gram of sample was added. If the sample quickly sinks to the bottom of the cylindrical container, the dispersion of the sample is poor; if the sample is dispersed in water in real time, the dispersibility of the sample is good. Then, the lid was closed and the cylindrical vessel was shaken up and down 10 times and allowed to stand for another 1 minute, and if many precipitated solids were observed, this would indicate that the suspension of the sample was not good enough; if a trace amount of precipitated solid was observed, it indicated that the suspensibility of the specimen was good.

The test results are shown in Table 1.

TABLE 1 results of the Performance test of examples

3. Drug efficacy testing

The herbicides prepared in examples 1 and 10 of the present invention were tested for their efficacy:

(1) test crops and subjects: the crop to be tested is a paddy field, and the test object is annual weed mainly comprising barnyard grass, moleplant seed, edible tulip and monochoria vaginalis.

(2) The application method comprises the following steps: adding 30L of water per mu, and spraying stem leaves.

(3) The investigation method comprises the following steps: sampling at 3 points, investigating each point by 0.25 square meter, and calculating the control effect of the plants by investigating the species and the plant number of the weeds 15 days and 30 days after the pesticide is applied.

(4) The drug effect calculation method comprises the following steps:

the control effect of the suspension emulsion prepared in the example 1 on annual weeds in the direct-seeded paddy field 15 days after application is shown in Table 2; the control effect of controlling annual weeds in the direct-seeded paddy fields 30 days after the application of the herbicide is shown in Table 3.

TABLE 2 control effect of the suspension emulsion prepared in example 1 after 15 days of application

TABLE 3 control Effect of the suspension emulsion prepared in example 1 after 30 days

The control effect of the suspension emulsion prepared in the example 10 on annual weeds in the direct-seeded paddy field 15 days after application is shown in Table 4; the control effect on annual weeds in the direct-seeded paddy fields 30 days after the application is shown in Table 5.

TABLE 4 control effect of the suspension emulsion prepared in example 10 after 15 days of application

TABLE 5 control effect of the suspension emulsion prepared in example 10 after 30 days of application

The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. A herbicidal composition, characterized in that it comprises A, B two active ingredients; the A is the bensulfuron methyl; the B is selected from at least one of butachlor, pretilachlor, acetochlor, metolachlor, anilofos, pendimethalin, butralin, bentazone, pyrazosulfuron-ethyl and cyclosulfamuron.

2. A herbicidal composition according to claim 1, wherein the A, B weight ratio of the two active ingredients is 1: (0.02-50).

3. The herbicidal composition as claimed in claim 1, wherein the herbicidal composition is in the form of one of dispersible oil suspension and suspoemulsion.

4. The herbicidal composition as claimed in claim 1, wherein the herbicidal composition is applied for the control of annual weeds in paddy fields.

5. A herbicide, comprising the herbicidal composition of claim 1 or 2; the content of the weeding composition is 20-45 wt%.

6. The herbicide suspoemulsion is characterized by comprising the following raw materials in parts by weight: 20-40% of the herbicidal composition of claim 1 or 2, 5-15% of a solvent, 3-8% of an emulsifier, 5-13% of a wetting dispersant, 0.5-5% of an antifreeze, 0.01-0.5% of a thickener, 0.05-0.5% of a preservative, 0.05-0.5% of an antifoaming agent, and the balance of water to 100%.

7. The herbicidal suspoemulsion formulation according to claim 6, wherein the emulsifier is at least one selected from the group consisting of castor oil polyoxyethylene ether, alkylphenol formaldehyde resin polyoxyethylene ether, tristyrylphenol polyoxypropylene polyoxyethylene block polymer, sorbitan stearate, and polyoxyethylene sorbitan stearate.

8. The herbicidal suspoemulsion formulation according to claim 6, wherein the wetting dispersant is at least one selected from the group consisting of polycarboxylate, sulfonate, alkylphenol polyoxyethylene ether formaldehyde condensate sulfate, and alkyl sulfate.

9. The herbicidal suspoemulsion according to claim 8, wherein the wetting dispersant is a polycarboxylate and/or sulfonate.

10. The herbicidal suspoemulsion formulation according to claim 6, characterized in that it is prepared by a process comprising the steps of: