RU2845573C2 - Herbicidal composition and process for preparation thereof - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: invention relates to agriculture, in particular to means of inhibiting growth of undesirable vegetation. Herbicidal composition comprises, by weight of the composition, from 5 % to 50 % of fluroxypyr, from 1 % to 50 % of metribuzin, from 2 % to 50 % of polar co-solvent, from 2 % to 30 % of emulsifiers, from 0.1 % to 50 % of adjuvant acceptable in agriculture and up to 100 % of solvent. Herbicidal composition is in form of a stable emulsion concentrate composition or a composition of suspension emulsions or a composition of emulsions in water. Polar co-solvent used in composition is N-methylpyrrolidone, and the solvent is selected from naphtha C-9, C-10. Emulsifying agent used in the composition is selected from benzene sulphonic acid, 4-C10-14-alkyl derivatives, calcium salts, ethoxylated tristryl phenol or a mixture of calcium salts of dodecyl benzene sulphonate and a polyethane oxyether derivative or a combination thereof.

EFFECT: disclosed herbicidal composition has synergistic action and is suitable for suppressing the growth of a wide range of undesirable vegetation, is stable during storage.

8 cl, 10 tbl, 3 ex

Description

Field of invention

The present invention generally relates to a herbicidal composition for crop management. More specifically, the present invention provides a synergistic composition of esters, salts of metribuzin and fluroxypyr or a combination thereof for controlling a broad spectrum of weeds and a method thereof.

Background for invention

The background description includes information that may be useful in understanding the present invention. This is not an admission that any information provided herein is prior art or relevant to the present invention, or that any publication directly or indirectly referenced is prior art.

To realize the full genetic yield potential of a crop, proper weed control is one of the most important components. Weeds not only reduce crop yields but also make harvesting difficult. Therefore, effective weed control is essential to maintain food grain production to feed the ever-growing population and ensure food security. Manual and mechanical methods are labor-intensive, tedious and expensive due to the rising cost of labor, and weeds cannot be effectively controlled simply because they imitate crops. Therefore, it is necessary to develop a method that is cost-effective and requires less time to improve crop yields. One method is the chemical method using herbicides. However, most herbicide formulations have limitations due to phytotoxicity, leaf deformation, leaf discoloration and many other side effects on crop plants.

New agricultural strategies of irrigation expansion, introduction of high-yielding varieties under heavy fertilizer conditions have greatly contributed to the increase in wheat yield, production and productivity, but these strategies have also stimulated the growth of various weed flora that wheat producers face, which can lead to significant yield losses. Unwanted competition includes broadleaf weeds and grasses. Weeds account for about one-third of the total losses caused by all pests. Therefore, the use of chemical weed control has become necessary.

Now, various chemical methods have been developed by combining different herbicides and using such a composition for crop production management, but such a composition is not what is much more effective in combating all the harmful effects of crop plants.

Chemical weed control is the most ideal, practical, effective, modern, time-saving means of reducing early weed competition and losses in grain crop production. But exclusive dependence on the same herbicides has led to environmental pollution and the emergence of resistance in some weed species, as well as interspecific and intraspecific shifts.

Considering the existing problems according to existing methods, it is necessary to develop and evaluate the effectiveness of suitable post-emergence herbicides alone and in mixtures for effective control of broadleaf weeds and grasses that can help in combating resistance.

Summary of the invention

The main objective of the present invention is to create a synergistic herbicide composition for crop production management.

Another object of the present invention is to provide a synergistic herbicide composition for effective control of broadleaf weeds and grasses, which can help combat resistance.

Another object of the present invention is to provide a synergistic herbicide composition designed to form a stable emulsion concentrate formulation.

Another object of the present invention is to provide a synergistic herbicidal composition formulated to provide a clear, transparent, emulsified concentrate.

The above and other objects of the present invention are achieved according to the following embodiments of the present invention. However, the disclosed embodiments are exemplary, based on the preferred and best mode of carrying out the invention, and do not limit the scope of the present invention.

According to one embodiment of the present invention, there is provided a herbicidal composition for crop production management comprising 5-50% fluroxypyr, 1-50% metribuzin, 2 to 50% polar/non-polar solvent as a co-solvent, 2 to 30% emulsifiers, 0.1 to 50% agriculturally acceptable adjuvant.

According to another embodiment of the present invention, there is provided a herbicidal composition for crop production management comprising 5-50% fluroxypyr, 1-50% metribuzin, 2 to 50% polar/non-polar solvent as a co-solvent, 2 to 30% emulsifiers, 0.1 to 50% agriculturally acceptable adjuvant, wherein said composition is a two-component combination composition formulated to obtain a stable emulsifiable concentrate composition.

According to another embodiment of the present invention, there is provided a herbicidal composition for crop production control, comprising 5-50% fluroxypyr, 1-50% metribuzin, 2 to 50% polar/non-polar solvent as a co-solvent, 2 to 30% emulsifiers, 0.1 to 50% agriculturally acceptable adjuvant, wherein the resulting composition is a clear, transparent emulsifiable concentrate composition.

According to another embodiment of the present invention, there is provided a method for preparing a herbicide composition for controlling the production of agricultural crops, comprising mixing a mixture of N-methylpyrrolidone and a C-9 solvent with metribuzin technical to dissolve uniformly, adding fluroxypyr technical to the resulting solution and continuing to stir until the technical is completely dissolved, adding an agriculturally acceptable adjuvant and stirring the reaction product, and adding emulsifiers to the reaction product and keeping the composition under stirring for at least 45 minutes to obtain a pure emulsified concentrate composition.

These and other objects and embodiments of the invention will become more apparent upon reading the following detailed description with the accompanying research details and examples. However, both the above Summary of the Invention and the following detailed description represent one of the potential experiments and embodiments and do not limit the invention or other alternative embodiments of the invention.

Detailed description of the invention

The following is a detailed description of embodiments of the disclosure, depicted in the accompanying experimental details and supporting research data. The embodiments are so detailed that they clearly convey the essence of the disclosure. However, the proposed scope of detail is not intended to limit the expected variations of the embodiments; on the contrary, the intent is to cover all modifications, equivalents, and alternatives that fall within the spirit and scope of the present disclosure.

Various terms used in this invention are not defined and should be given the broadest definition that those skilled in the art have given to the term as reflected in published publications and issued patents at the time of filing.

According to the present invention, there is provided a herbicidal composition for crop production management, wherein said composition is an emulsifiable concentrate consisting of two herbicides in a certain ratio designed to form an oil/water emulsion when the concentrate is added to water, and wherein said composition is a two-component combination formulated according to the chemical composition indicated in the table below to form a stable emulsion concentrate composition. Metribuzin A.I is dissolved in an organic solvent and fluroxypyr technical is added while stirring, then certain emulsifiers are added to prepare a clear transparent emulsion concentrate (EC) composition.

According to one embodiment of the present invention, a combination of metribuzin and fluroxypyr, including esters, salts and agriculturally acceptable carriers thereof, is provided.

According to one embodiment of the present invention, particular synergism may also be observed for a three-component combination comprising a compound in the form of metribuzin, fluroxypyr and pinoxaden or metribuzin, fluroxypyr or clodinafop.

According to one embodiment of the present invention, the resulting composition/formulation can be used together as a final product or the reaction product can be used sequentially in the field.

According to one embodiment of the present invention, the resulting composition is prepared at the time of use by dilution with a spray solution, or it can be used in the form of a concentrated composition, such as a “ready-to-use composition”.

The composition/formulation may be used in any conventional form such as dual packs or as emulsifiable concentrates, microemulsion concentrates (MEC), suspension concentrates (SC), soluble concentrates (SL), suspension emulsion (SE) or any solid compositions such as WDG or granules, where such combinations may be formulated using agriculturally acceptable carriers, surfactants or other application aids.

According to one embodiment, the emulsifiable concentrate (EC) comprises from 5 to 50% fluroxypyr (AE) A.I., from 1 to 50% metribuzin A.I., 2 to 50% N-methylpyrrolidone, 2 to 30% emulsifiers, 0.1 to 50% ethoxylated alkyl alcohols and a solvent naphtha, a C-9/C-10 grade solvent in an amount sufficient to make 100%.

According to one embodiment, the emulsifiable concentrate (EC) comprises 5 to 50% fluroxypyr (AE) A.I, 1 to 50% metribuzin A.I, 2 to 50% polar/non-polar solvent as co-solvent, 2 to 30% emulsifiers, 0.1 to 50% adjuvant (non-ionic wetting agent) and solvent naphtha, C-9/C-10 grade solvent in sufficient amount to make 100%.

According to the present invention, the emulsifier is selected from the group comprising benzenesulfonic acid, 4-C10-14-alkyl derivatives, calcium salts/or ethoxylated tristrylphenol, or a mixture of calcium salt of dodecylbenzenesulfonate and a polyethaneoxyether derivative, or a combination thereof.

According to the present invention, the polar/non-polar solvent as a co-solvent used in the composition is N-Methylpyrrolidone.

If desired, other suitable liquid carriers can be used in the compositions, which include, but do not exclude, a carrier such as water, aromatic or aliphatic hydrocarbons, alcohol solvents such as hexanol, decanol, etc.

According to the present invention, the adjuvant is an agriculturally acceptable adjuvant and preferably a non-ionic wetting agent, most preferably ethoxylated alkyl alcohols.

According to the present invention, the composition can be enhanced by adding other ingredients such as wetting agents, antifoaming agents, adhesives, neutralizers, thickeners, binders, sequestrants, stabilizers, solubilizers, salts, fertilizers or antifreezes.

Below are given various examples of the preparation of various compounds according to the present invention. However, the following examples are not limited and will be further developed within the framework of the present invention and submitted:

Example 1

Serial Number Ingredients Quantity in grams 01 Fluroxypyr-Meptyl Technical @ 98% 20.30 02 Metribuzin Technical @ 95% 5.90 03 N-methylpyrrolidone 10.00 04 Solvent C9 31.8 05 Ethoxylated Tristyrylphenol 6.0 06 Linear calcium dodecylbenzenesulfonate in 2-ethylhexanol 6.0 07 agriculturally acceptable adjuvant 20.0 TOTAL 100 grams

Example 2

Serial Number Ingredients Quantity in grams 01 Fluroxypyr-Meptyl Technical @ 98% 20.30 02 Metribuzin Technical @ 95% 5.90 03 N-methylpyrrolidone 10.0 04 Solvent C9 31.8 05 Emulsifiers: - Benzene sulfonic acid, 4-C10-14-alkyl derivative, mixture of calcium salt of dodecylbenzenesulfonate and polyethaneoxyether derivative 12.0 06 agriculturally acceptable adjuvant Adjuvant 20.0 TOTAL 100 grams

Example 3

Serial Number Ingredients Quantity in grams 01 Fluroxypyr-Meptyl Technical @ 98% 20.30 02 Metribuzin Technical @ 95% 5.90 03 N-methylpyrrolidone 10.0 04 Solvent C9 33.8 05 Tristyrylphenol polyethylene glycol ether 6.0 06 Tributylphenol ethoxylate 6.0 07 agriculturally acceptable adjuvant Adjuvant 18.0 TOTAL 100 grams

Manufacturing process:

1. Weigh a certain amount of technical Metribuzin and transfer it into a glass measuring cup.

2. Add N-Methylpyrrolidone + Solvent C-9 and stir the mixture to dissolve technical metribuzin.

3. Now slowly add Fluroxypyr technical to the beaker, continue stirring until the technical is dissolved.

4. Continue mixing and add Agriculturally Acceptable Adjuvant.

5. Add emulsifiers and keep the mixture stirring for at least 45 minutes to obtain a transparent mixture.

Synergy study To calculate the expected activity of mixtures containing active ingredients A and B, the following formula was used:

Expected (E) A+B -AB/100

Where

A = Observed potency of the active ingredient (combination of metabuzin and fluroxypyr herbicides) A at the same concentration used in the mixture.

B = the observed potency of active ingredient B at the same concentration as used in the mixture.

A field experiment was conducted to test the synergism of Metribuzin and Fluroxypyr combination against weeds in wheat (variety: PBW 667) at Ambala Research Farm, Haryana during Rabi season. The soil texture was sandy loam. The experiment comprising of 8 treatments including pre-mixed binary combinations along with their single molecule using randomized block design was repeated three times. All treatments were applied as post-emergence foliar spray when weeds had reached two to four leaf stage. Spray application was done using battery powered knapsack sprayer. Percent efficacy was calculated at 14 and 21 days after herbicide application.

Weeds present in the experimental fields: Chenopodium album, Rumex dentatus, Anagalis arvensis, Medicago denticulata, Solanum nigrum, Argemone maxicana, Parthenium hysterophorus, Melilotus indica, Phalaris minor.

The application rates of the herbicide premix molecule, various weed flora were tested and the results are given in the following tables:

Table 1: Synergistic activity of herbicide compositions against major wheat weeds 14 days after application

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare % Generate symptoms of burning down when fighting weeds different types of weeds by 14 DAA Chenopodium album Medicago denticulata Anagalis arvensis observed Expected It is observed Expected observed Expected 1 Fluroxypyr 25% + Metribuzin 5.6% EC 1250 312 + 70 95 73 88 55 95 51 2 Fluroxypyr 25% + Metribuzin 5.6% EC 1000 250 + 56 88 73 75 55 85 51 3 Fluroxypyr 45.5% + Metribuzin 13% EC 500 273 + 65 85 73 75 55 70 51 4 Fluroxypyr 25% + Metribuzin 5.6% EC 2000 500 + 112 99 73 99 55 99 51 5 Fluroxypyr 45.5% + Metribuzin 13% EC 1000 568.7+130 99 73 99 55 99 51 6 Metribuzin 70% WP 175 122.5 55 73 40 55 30 51 7 Fluroxypyr emulsion concentrate 18% 1250 325 40 73 25 55 30 51 8 Control - - - - - - - -

Table 2

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare % Generate symptoms of burning down when fighting weeds different types of weeds by 14 DAA Parthenium hysterophorus Melilotus indica Phalaris minor It is observed Expected It is observed Expected observed Expected 1 Fluroxypyr 25% + Metribuzin 5.6% EC 1250 312 + 70 96 83.5 74 51.64 35 30 2 Fluroxypyr 25% + Metribuzin 5.6% EC 1000 250 + 56 90 83.5 70 51.64 30 30 3 Fluroxypyr 45.5% + Metribuzin 13% EC 500 273 + 65 90 83.5 70 51.64 30 30 4 Fluroxypyr 25% + Metribuzin 5.6% EC 2000 500 + 112 99 83.5 85 51.64 40 30 5 Fluroxypyr 45.5% + Metribuzin 13% EC 1000 568.7 + 130 99 83.5 85 51.64 40 30 6 Metribuzin 70% WP 175 122.5 70 83.5 38 51.64 30 30 7 Fluroxypyr emulsion concentrate 18% 1250 325 45 83.5 22 51.64 0 8 Control - - - - - - - -

Table 3

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare % Generate symptoms of burning down when fighting weeds different types of weeds by 14 DAA Argemone maxicana Rumex dentatus Solanum nigrum It is observed Expected It is observed Expected observed Expected 1 Fluroxypyr 25% + Metribuzin emulsion concentrate 5.6% 1250 312 + 70 70 51 99 82 75 58 2 Fluroxypyr 25% + Metribuzin emulsion concentrate 5.6% 1000 250 + 56 65 51 99 82 60 58 3 Fluroxypyr 45.5% + Metribuzin emulsion concentrate 13% 500 273 + 65 60 51 99 82 55 58 4 Fluroxypyr 25% + Metribuzin emulsion concentrate 5.6% 2000 500 + 112 99 51 99 82 99 58 5 Fluroxypyr 45.5% + Metribuzin emulsion concentrate 13% 1000 568.7+130 99 51 99 82 99 58 6 Metribuzin 70% wettable powder 175 122.5 30 51 55 82 40 58 7 Fluroxypyr emulsion concentrate 18% 1250 325 40 73 60 82 30 58 8 Control - - - - - - - -

Table 4: Synergistic activity of herbicide compositions against major wheat weeds 21 days after application

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare % Generate symptoms of burning down when fighting weeds different types of weeds by 21 DAA Chenopodium album Medicago denticulata Anagalis arvensis It is observed Expected It is observed Expected observed Expected 1 Fluroxypyr 25% + Metribuzin 5.6% EC 1250 312 + 70 99 88 99 80 99 92 2 Fluroxypyr 25% + Metribuzin 5.6% EC 1000 250 + 56 99 88 99 80 99 92 3 Fluroxypyr 45.5%+ Metribuzin 13% EC 500 273 + 65 98 88 99 80 96 92 4 Fluroxypyr 25% + Metribuzin 5.6% EC 2000 500 + 112 99 88 99 80 99 92 5 Fluroxypyr 45.5% + Metribuzin 13% EC 1000 568.7 + 130 99 88 99 80 99 92 6 Metribuzin 70% WP 175 122.5 70 88 60 80 60 92 7 Fluroxypyr emulsion concentrate 18% 1250 325 60 88 75 80 80 92 8 Control - - - - - - - -

Table 5

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare % Generate symptoms of burning down when fighting weeds different types of weeds by 21 DAA Argemone maxicana Rumex dentatus Solanum nigrum It is observed Expected observed Expected observed Expected 1 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1250 312 + 70 99 75.25 99 95.5 99 85 2 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1000 250 + 56 96 75.25 99 95.5 90 85 3 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 500 273 + 65 90 75.25 99 95.5 88 85 4 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 2000 500 + 112 99 75.25 99 95.5 99 85 5 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 1000 568.7 + 130 99 75.25 99 95.5 99 85 6 Metribuzin 70% wettable powder 175 122.5 45 75.25 70 95.5 50 85 7 Fluroxypyr emulsion concentrate 18% 1250 325 55 75.25 85 95.5 70 85 8 Control - - - - - - - -

Table 6

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare % Generate symptoms of burning down when fighting weeds different types of weeds by 21 DAA Parthenium hysterophorus Melilotus indica Phalaris minor It is observed Expected observed Expected observed Expected 1 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1250 312 + 70 99 93.6 99 89.5 80 50 2 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1000 250 + 56 98 93.6 99 89.5 75 50 3 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 500 273 + 65 98 93.6 99 89.5 70 50 4 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 2000 500 + 112 99 93.6 99 89.5 99 50 5 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 1000 568.7 + 130 99 93.6 99 89.5 99 50 6 Metribuzin 70% wettable powder 175 122.5 80 93.6 65 89.5 50 50 7 Fluroxypyr 18% emulsifiable concentrate 1250 325 68 93.6 70 89.5 0 50 8 Control - - - - - - - -

The results in Table 1, 2, 3, 4, 5 and 6 clearly demonstrate the synergy of the premix molecule for controlling various weeds 14 days and 21 days after herbicide application. The difference between the observed and expected efficacy clearly shows the synergistic effect of the combination over a longer period of time.

Phytotoxic effect of herbicide combination on wheat

Table 7. Visual observations of phytotoxicity were recorded for leaf tip/surface damage, epinasty/hyponasty, wilting, etc. on a scale of 0 to 10 (as shown below) at 3, 5, 7, 10 and 15 days after herbicide application.

Rating Effect Description of phytotoxicity 0 No No damage normal 1 Minor Minor stunting, crop damage or discoloration 2 Some stand loss, stunting or crop discoloration 3 The damage is more pronounced, but not permanent. 4 Average Moderate damage, recovery is possible 5 The damage is more permanent, restoration is questionable 6 The damage is close to serious, recovery is impossible 7 Serious Severe damage, stand loss 8 Almost destroyed and a few plants survived 9 Very few plants survived. 10 Full Total destruction

Table 8: Effect of herbicide composition on wheat phytotoxicity

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare Phytotoxicity assessment (number of days after herbicide application) 3 DAA 5 DAA 7 DAA 10 DAA 15 DAA 1 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1250 312 + 70 0 0 0 0 0 2 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1000 250+56 0 0 0 0 0 3 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 500 273 + 65 0 0 0 0 0 4 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 2000 500 + 112 0 1 3 3 0 5 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 1000 568.7 + 130 0 1 4 3 0 6 Metribuzin 70% wettable powder 175 122.5 0 0 0 0 0 7 Fluroxypyr 18% emulsifiable concentrate 1250 325 0 0 0 0 0 8 Control - - 0 0 0 0 0

In wheat crops, no phytotoxicity, crop damage, leaf burns, etc. were recorded at the recommended doses, but at a double dose in treatments 4 and 5, yellowing of the leaf tips was observed on the 5th day after the herbicide application. On the 7th and 10th day, the leaf tips were burned, and growth remained slightly slower compared to other treatments. However, on the 15th day, the crop was completely restored, and new plant shoots were observed to be completely healthy and normal.

Table 9: Effect of herbicide composition on wheat yield

Serial Number Processing Dose ml/g/ha grams of active ingredient per hectare Grain yield (kg/ha) 1 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1250 312+70 4889 2 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 1000 250+56 4800 3 Fluroxypyr 45.5% + Metribuzin 13% emulsion concentrate 500 273+65 4622 4 Fluroxypyr 25% + Metribuzin 5.6% emulsion concentrate 2000 500+112 4533 5 Fluroxypyr 45.5%+ Metribuzin 13% emulsion concentrate 1000 568.7+130 4444 6 Metribuzin 70% wettable powder 175 122.5 4267 7 Fluroxypyr 18% emulsifiable concentrate 1250 325 4133 8 Control - - 3244 SE(m)± 122 CD (P=0.05) 372

The data presented in Table 9 showed that all herbicide treatments significantly increased the grain yield of wheat compared to the control. Among all herbicide treatments, the maximum grain yield (4889 kg/ha) was obtained with treatment 1, which remained at the level of treatments 2 and 3.

Accelerated storage stability data

Storage conditions: - 54 degrees Celsius for 14 days in a hot air oven/Stability test chambers

Serial Number Test parameter 0-day analysis 14 days at ambient temperature 14 days at 54°C 1 Description Transparent liquid of brown color Transparent liquid of brown color Transparent liquid of brown color 2 Active Content Weight Percentage Fluroxypyr A.I. 13.93% 13.92% 13.86% Metribuzin A.I. 5.76% 5.77% 5.64% 3 Weight percent Acidity 0.08% 0.10% 0.11% 4 Emulsion stability 342 ppm hard water. 0 hours. Emulsion
Full Emulsion
Full Emulsion
Full 2 hours Cream Zero Sediment Zero Cream Zero Sediment Zero Cream Zero Sediment Zero 12 hours Cream Zero Sediment Zero Cream Zero Sediment Zero Cream Zero Sediment Zero 24 hours Cream Zero Sediment Zero Cream Zero Sediment Zero Cream Zero Sediment Zero Re-emulsification Re-emulsify Re-emulsify Re-emulsify 24.5 hours. Cream Zero Sediment Zero Cream Zero Sediment Zero Cream Zero Sediment Zero 5 Flash point °C 46 °C 46 °C 46 °C

Although the invention is susceptible to various modifications and alternative forms, some embodiments have been illustrated by way of example in the drawings and described above in detail. The intention, however, is not to limit the invention to those examples, and the invention is intended to cover all modifications, equivalents and alternatives to the embodiments described in this specification.

The embodiments in the specification are described in a progressive manner and the focus of the description in each embodiment is the difference from other embodiments. References may be made to each other for the same or similar parts of each embodiment.

It will be clear to those skilled in the art that the above description relates to preferred embodiments and that various changes and modifications are possible within the broad scope of the appended claims without departing from the spirit of the invention with the necessary modifications.

Based on the description of the disclosed embodiments, those skilled in the art can make or use the present disclosure. Various modifications to the embodiments will be apparent to those skilled in the art, and the generic principles defined in the specification may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Although the invention is susceptible to various modifications and alternative forms, certain embodiments have been illustrated by way of example in the drawings and described above in detail.

The intention, however, is not to limit the invention to those examples, and the invention is intended to cover all modifications, equivalents and alternatives to the embodiments described in this specification.

The embodiments in the specification are described in a progressive manner and the focus of the description in each embodiment is the difference from other embodiments. References may be made to each other for the same or similar parts of each embodiment.

It will be clear to those skilled in the art that the above description relates to preferred embodiments and that various changes and modifications are possible within the broad scope of the appended claims without departing from the spirit of the invention with the necessary modifications.

Based on the description of the disclosed embodiments, those skilled in the art may make or use the present disclosure. Various modifications to the embodiments will be apparent to those skilled in the art, and the generic principles defined in the specification may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure is not limited to the embodiments in the specification, but is intended to cover the widest scope consistent with the principle and novel features disclosed in the specification.

Claims (21)

1. A herbicide composition containing, by weight of the composition: i) from 5 to 50% fluroxypyr; ii) from 1 to 50% metribuzin; iii) from 2 to 50% polar co-solvent; iv) from 2 to 30% emulsifiers; v) from 0.1 to 50% of an agriculturally acceptable adjuvant and vi) up to 100% solvent, wherein the polar co-solvent is N-methylpyrrolidone and the solvent is selected from a C-9 or C-10 naphtha solvent. 2. The composition according to claim 1, characterized in that said composition is a two-component combined composition, formulated to form a stable emulsion concentrate composition or a suspension emulsion composition, or a composition of emulsions in water. 3. The composition according to claim 1, characterized in that the emulsifier used in the composition is selected from benzenesulfonic acid, 4-C10-14-alkyl derivatives, calcium salts, ethoxylated tristyrylphenol or a mixture of calcium salts of dodecylbenzenesulfonate and a polyethaneoxyether derivative, or a combination thereof. 4. The composition according to claim 1, characterized in that the agriculturally acceptable adjuvant is a non-ionic wetting agent, preferably ethoxylated alkyl alcohols. 5. The composition according to claim 1, characterized in that the composition is presented in the form of a transparent emulsified concentrate. 6. A method for preparing a herbicide composition according to claim 1, comprising the steps of: mixing a mixture of a co-solvent of N-methylpyrrolidone and a solvent of naphtha C-9 or C-10 with metribuzin to obtain a solution; adding fluroxypyr to the obtained solution and continuing to stir until a homogeneous solution is obtained; adding an agriculturally acceptable adjuvant and stirring the obtained product; and adding emulsifiers to the obtained product and stirring the composition for at least 45 minutes to obtain a transparent emulsified concentrate, wherein the starting components are used in an amount, by weight of the composition: metribuzin 1-50%, fluroxypyr 5-50%, N-methylpyrrolidone from 2 to 50%, emulsifiers from 2 to 30%, agriculturally acceptable adjuvant from 0.1 to 50%, solvent naphtha C-9 or C-10 up to 100%. 7. The method according to claim 6, characterized in that the emulsifier used in the composition is selected from benzenesulfonic acid, 4-C10-14-alkyl derivatives, calcium salts, ethoxylated tristyrylphenol or a mixture of calcium salts of dodecylbenzenesulfonate and a polyethaneoxyether derivative, or a combination thereof. 8. The method according to claim 6, characterized in that the agriculturally acceptable adjuvant is a non-ionic wetting agent, preferably ethoxylated alkyl alcohols.