Weeding composition containing flucetosulfuron and butachlor

Abstract

The invention relates to the field of herbicides, in particular to a herbicidal composition containing flucetosulfuron and butachlor, which is used for solving the problems of large dosage and poor control effect when the flucetosulfuron and the butachlor are independently used at present. The herbicidal composition is prepared by reasonably compounding flucetosulfuron and butachlor, the herbicidal composition is applied to weeds in crop fields, the herbicidal composition is absorbed by the weeds after the herbicidal composition is applied, the action mechanisms of the flucetosulfuron and the butachlor are different, so that the weeds can be prevented and controlled by a single effect or a synergistic effect, and the herbicidal effect is obvious. According to the weeding composition, more weeds can be controlled by the weeding composition at the same time, the weed control spectrum can be expanded, an obvious synergistic effect is shown, the generation of drug resistance of the weeds can be delayed, and the use dosage of a single herbicide is reduced.

Description

Technical Field

[0001] The invention relates to the field of herbicides, and in particular to a herbicide composition containing flucetosulfuron-methyl and butachlor. Background Art

[0002] Flucetosulfuron is a sulfonylurea herbicide and an acetolactate synthase (ALS) inhibitor. It can be used to treat rice field soil or stems and leaves. After being absorbed by the roots, stems and leaves of plants, it inhibits the plant's acetolactate synthase, hindering the biosynthesis of branched-chain amino acids such as valine, leucine, and isoleucine, thereby destroying protein synthesis, interfering with DNA synthesis and cell division and growth, and ultimately leading to plant death.

[0003] Butachlor is an amide-type systemic selective pre-emergence herbicide. After the use of butachlor, butachlor is absorbed by the weed shoots and then transmitted to various parts of the weeds to exert its effect. The absorbed butachlor inhibits and destroys the production of proteases in the weeds, affecting the synthesis of weed proteins, causing the weed shoots and roots to be unable to grow and develop normally, thereby causing the weeds to die.

[0004] Although flucetosulfuron-methyl and butachlor can be used alone to control weeds, the amount of pesticides used is large and the control cost is high. Moreover, after long-term use, weeds will develop resistance to flucetosulfuron-methyl or butachlor, resulting in a significant decrease in the weed control effect.

[0005] How to improve the problem that flucetosulfuron-methyl and butachlor are used alone at high dosages and have poor control effects is the key to the present invention. Therefore, a herbicidal composition containing flucetosulfuron-methyl and butachlor is urgently needed to solve the above problems. Summary of the Invention

[0006] In order to overcome the above technical problems, the object of the present invention is to provide a herbicidal composition containing flucetosulfuron-methyl and butachlor: by rationally compounding flucetosulfuron-methyl and butachlor, a herbicidal composition is prepared, which solves the problem that flucetosulfuron-methyl and butachlor, when used alone, have a large dosage and poor control effect.

[0007] The purpose of the present invention can be achieved through the following technical solutions:

[0008] A herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising active ingredients and adjuvants;

[0009] The mass ratio of the active ingredient in the herbicidal composition is 25-65%, and the rest is auxiliary materials;

[0010] The active ingredients include flucetosulfuron-methyl and butachlor.

[0011] As a further embodiment of the present invention, the mass ratio of flucetosulfuron-methyl to butachlor is 0.1-10:5-65.

[0012] As a further solution of the present invention: the mass ratio of flucetosulfuron-methyl to butachlor is 5-10:35-65.

[0013] As a further solution of the present invention: the mass ratio of flucetosulfuron-methyl to butachlor is 10:35.

[0014] As a further solution of the present invention: the auxiliary materials are all raw materials in the pesticide formulation of the herbicidal composition except the active ingredient.

[0015] As a further embodiment of the present invention: the pesticide formulations include but are not limited to wettable powders, aqueous solutions, soluble granules, oil suspensions, aqueous emulsions, and microemulsions.

[0016] As a further embodiment of the present invention: the herbicidal composition is used for preventing and controlling weeds in crop fields.

[0017] As a further embodiment of the present invention, the weeds are broadleaf weeds, sedge weeds and grass weeds.

[0018] Beneficial effects of the present invention:

[0019] The present invention discloses a herbicidal composition containing flucetosulfuron-methyl and butachlor. The herbicidal composition is prepared by rationally compounding flucetosulfuron and butachlor. The herbicidal composition is applied to weeds in crop fields. After application, the herbicidal composition is absorbed by the weeds. Flucetosulfuron inhibits plant acetolactate synthase, hinders the biosynthesis of branched-chain amino acids such as valine, leucine, and isoleucine, thereby destroying protein synthesis and interfering with DNA synthesis, cell division, and growth. Butachlor inhibits and destroys the production of proteases, affects weed protein synthesis, and ultimately kills the weeds, thereby achieving the purpose of weed control. Since flucetosulfuron-methyl and butachlor have different action mechanisms, weeds can be controlled by a single effect or a synergistic effect, so that more weeds can be controlled simultaneously by the herbicidal composition, thereby expanding the weed control spectrum, showing a significant synergistic effect, delaying the development of weed resistance, and reducing the dosage of a single herbicide. DETAILED DESCRIPTION

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0021] Example 1:

[0022] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0023] Step s11: weighing flucetosulfuron-methyl and butachlor in a mass ratio of 0.1:5, and mixing the two uniformly to obtain an active ingredient;

[0024] Step s12: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 3.0:2.2:10:25, and mix the four ingredients evenly to obtain an auxiliary material;

[0025] Step s13: Weigh 25% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients, then mix the active ingredient and excipients evenly, and then grind them with a jet mill and pass them through a 300-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0026] Example 2:

[0027] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0028] Step s21: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 0.1:35, and mix the two uniformly to obtain an active ingredient;

[0029] Step s22: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 3.8:3.2:13:30, and mix the four ingredients evenly to obtain an auxiliary material;

[0030] Step s23: Weigh 45% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients, then mix the active ingredient and the excipients evenly, and then grind them with a jet mill and pass them through a 350-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0031] Example 3:

[0032] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0033] Step s31: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 0.1:65, and mix the two uniformly to obtain an active ingredient;

[0034] Step s32: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 4.5:4.3:6:35, and mix the four ingredients evenly to obtain an auxiliary material;

[0035] Step s33: Weigh 65% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients, then mix the active ingredient and excipients evenly, and then grind them with a jet mill and pass them through a 400-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0036] Example 4:

[0037] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0038] Step s41: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 5:5, and mix the two uniformly to obtain an active ingredient;

[0039] Step s42: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 3.0:2.2:10:25, and mix the four ingredients evenly to obtain an auxiliary material;

[0040] Step s43: Weigh 25% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients, then mix the active ingredient and excipients evenly, and then grind them with a jet mill and pass them through a 300-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0041] Example 5:

[0042] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0043] Step s51: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 5:35, and mix the two uniformly to obtain an active ingredient;

[0044] Step s52: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 3.8:3.2:13:30, and mix the four ingredients evenly to obtain an auxiliary material;

[0045] Step s53: Weigh 45% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients, then mix the active ingredient and excipients evenly, and then grind them with a jet mill and pass them through a 350-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0046] Example 6:

[0047] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0048] Step s61: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 5:65, and mix the two uniformly to obtain an active ingredient;

[0049] Step s62: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 4.5:4.3:6:35, and mix the four ingredients evenly to obtain an auxiliary material;

[0050] Step s63: Weigh 65% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients. Then, mix the active ingredient and the excipients evenly, grind them with a jet mill, and pass them through a 400-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0051] Example 7:

[0052] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0053] Step s71: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 10:5, mix the two uniformly, and obtain an active ingredient;

[0054] Step s72: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 3.0:2.2:10:25, and mix the four ingredients evenly to obtain an auxiliary material;

[0055] Step s73: Weigh 25% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients. Then, mix the active ingredient and the excipients evenly, grind them with a jet mill, and pass them through a 300-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0056] Example 8:

[0057] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0058] Step s81: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 10:35, and mix the two uniformly to obtain an active ingredient;

[0059] Step s82: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 3.8:3.2:13:30, and mix the four ingredients evenly to obtain an auxiliary material;

[0060] Step s83: Weigh 45% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients. Then, mix the active ingredient and the excipients evenly, grind them with a jet mill, and pass them through a 350-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0061] Example 9:

[0062] This embodiment is a method for preparing a herbicidal composition containing flucetosulfuron-methyl and butachlor, comprising the following steps:

[0063] Step s91: Weigh flucetosulfuron-methyl and butachlor in a mass ratio of 10:65, mix the two uniformly, and obtain an active ingredient;

[0064] Step s92: Weigh sodium lignin sulfonate, sodium dodecylbenzene sulfonate, organic bentonite, and light calcium carbonate in a mass ratio of 4.5:4.3:6:35, and mix the four ingredients evenly to obtain an auxiliary material;

[0065] Step s93: Weigh 65% of the active ingredient according to the mass percentage, and make up the rest to 100% with excipients. Then, mix the active ingredient and the excipients evenly, grind them with a jet mill, and pass them through a 400-mesh sieve to obtain the herbicidal composition containing flucetosulfuron-methyl and butachlor.

[0066] Comparative Example 1:

[0067] This comparative example is different from Example 9 in that flucetosulfuron-methyl is not added.

[0068] Comparative Example 2:

[0069] This comparative example differs from Example 9 in that butachlor is not added.

[0070] Comparative Example 3:

[0071] This comparative example differs from Example 9 in that flucetosulfuron-methyl and butachlor are not added.

[0072] Test example

[0073] The herbicidal compositions of Examples 1-9 and Comparative Examples 1-2 were diluted 600 times with water when the rice weeds were at the 2-3 leaf stage, and sprayed on the stems and leaves once using a backpack sprayer. The dosage of the active ingredient in the herbicidal composition was 45 g / hm2. 2 , investigate the fresh weight prevention effect after 15 days.

[0074] The test results are shown in the following table:

[0075]

[0076]

[0077] Referring to the data in the table above, we can see that using either flucetosulfuron or butachlor alone can control weeds, but the effect is not obvious enough. A reasonable combination of flucetosulfuron and butachlor can achieve the best control effect. When the mass ratio of flucetosulfuron to butachlor is 10:35, the control effect on weeds can reach more than 97%.

[0078] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0079] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A herbicidal composition containing flucetosulfuron-methyl and butachlor, characterized in that: Including active ingredients and excipients; The mass ratio of the active ingredient in the herbicidal composition is 25-65%, and the rest is auxiliary materials; The active ingredients include flucetosulfuron-methyl and butachlor.

2. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 1, wherein: The mass ratio of flucetosulfuron-methyl to butachlor is 0.1-10:5-65.

3. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 2, wherein: The mass ratio of flucetosulfuron-methyl to butachlor is 5-10:35-65.

4. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 3, wherein: The mass ratio of flucetosulfuron-methyl to butachlor is 10:

35.

5. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 1, wherein: The auxiliary materials are all raw materials except the active ingredients in the pesticide formulation of the herbicidal composition.

6. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 5, characterized in that: The pesticide formulations include, but are not limited to, wettable powders, aqueous solutions, soluble granules, oil suspensions, aqueous emulsions, and microemulsions.

7. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 6, characterized in that: The herbicidal composition is used for preventing and controlling weeds in crop fields.

8. The herbicidal composition containing flucetosulfuron-methyl and butachlor according to claim 7, characterized in that: The weeds are broadleaf weeds, sedge weeds and grass weeds.

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