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CN-122004222-A - Weeding composition and application thereof

CN122004222ACN 122004222 ACN122004222 ACN 122004222ACN-122004222-A

Abstract

The invention belongs to the technical field of herbicides, and particularly discloses a weeding composition and application thereof. The weeding composition comprises the following components of cyhalofop-butyl, bentazone and gamma-aminobutyric acid, wherein the mass ratio of the cyhalofop-butyl to the bentazone to the gamma-aminobutyric acid is (8-10) to (3-4). The weeding composition can effectively prevent and remove weeds in paddy fields, especially Cyperaceae weeds.

Inventors

  • LIANG CHENG
  • LUO PEIFAN
  • PAN JUWU
  • ZHOU HUIRONG
  • CHEN HAIJUN
  • WU ZHIXIONG
  • BI GELIN
  • ZOU SHIGANG

Assignees

  • 南宁汉和生物科技股份有限公司
  • 深圳汉和生命科学有限公司

Dates

Publication Date
20260512
Application Date
20260126

Claims (8)

  1. 1. The weeding composition is characterized by comprising the following components of cyhalofop-butyl, dimedone and gamma-aminobutyric acid, wherein the mass ratio of the cyhalofop-butyl to the dimedone to the gamma-aminobutyric acid is (8-10) to (3-4).
  2. 2. The weeding composition according to claim 1, wherein the mass ratio of cyhalofop-butyl, bentazone and gamma-aminobutyric acid is 10:10:3.
  3. 3. A herbicidal composition according to claim 1, wherein the cyhalofop-butyl is 4% cyhalofop-butyl, the dimedone is 460g/L dimedone and the gamma-aminobutyric acid is 450g/L gamma-aminobutyric acid.
  4. 4. Use of the herbicidal composition as claimed in any one of claims 1 to 3 for the preparation of herbicides for controlling weeds in paddy fields.
  5. 5. Use of the herbicidal composition as claimed in any of claims 1 to 3 for controlling weeds in paddy fields.
  6. 6. The use according to claim 5, wherein the weeds are sedge weeds.
  7. 7. A method for controlling weeds in a paddy field, characterized in that the weeding composition according to any one of claims 1 to 3 is sprayed on the leaves of paddy field in the 3-4 leaf stage.
  8. 8. The method for controlling weeds in paddy fields according to claim 8, wherein the spraying amount of the herbicidal composition is 1.9-2.4Kg/shang.

Description

Weeding composition and application thereof Technical Field The invention relates to the technical field of herbicides, in particular to a weeding composition and application thereof. Background Weeds in the rice fields compete with rice for water, nutrients, illumination, space and other resources, so that photosynthesis of the rice is affected, and normal growth of the rice is further disturbed. Paddy weeds can be classified into grassy weeds, sedge weeds and broadleaf weeds according to the types of herbicide control objects. In the global scope, paddy field weed management is always a key link for improving the yield of rice and ensuring the quality of rice. At present, chemical pesticides are mainly used for preventing and controlling rice weeds. With the long-term use of single herbicide variety and the change of cultivation mode, the weed phase is obviously changed, the drug resistance of weeds is continuously enhanced, and the herbicide killing spectrum and the weed control effect of various herbicides are different due to different chemical structures and different action targets. The existing solution is to solve the problems of high toxicity and poor effect of single pesticides by compounding herbicides or compounding herbicides with fertilizers/plant growth regulators and the like, but because whether the interactive use of herbicides and other components can delay the generation of drug resistance of an acting object or not has ideal use effect and is unexpected, the control effect of different herbicide compounding compositions on specific grass seeds and the influence of the herbicide compounding compositions on the growth safety of crops still need to be deeply explored. Disclosure of Invention In view of the foregoing, it is desirable to provide a herbicidal composition and its use. The weeding composition can effectively prevent and remove weeds in paddy fields, especially Cyperaceae weeds by compounding cyhalofop-butyl, bentazone and gamma-aminobutyric acid. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The weeding composition comprises cyhalofop-butyl, bentazone and gamma-aminobutyric acid, wherein the mass ratio of the cyhalofop-butyl to the bentazone to the gamma-aminobutyric acid is (8-10) to (3-4). Further, the mass ratio of cyhalofop-butyl to bentazone to gamma-aminobutyric acid is 10:10:3. Further, the cyhalofop-butyl is 4% cyhalofop-butyl, the dimedon is 460g/L dimedon, and the gamma-aminobutyric acid is 450g/L gamma-aminobutyric acid. The invention also provides application of the weeding composition in preparing herbicide for preventing and killing weeds in paddy fields. The invention also provides application of the weeding composition in preventing and killing weeds in paddy fields. Further, the weeds are sedge weeds. The invention also provides a method for preventing and killing sedge weeds in paddy fields, which comprises the step of spraying the weeding composition according to any one of claims 1-3 on the leaves of paddy fields in the 3-4 leaf stage. Further, the spraying amount of the weeding composition is 1.9-2.4Kg/shang. The invention has the following beneficial effects: According to the invention, the trifloxystrobin, the bentazone and the gamma-aminobutyric acid are compounded, so that weeds in paddy fields, especially Cyperaceae weeds, can be effectively prevented and removed, the paddy is better in growth vigor, the leaves are greener, the plants are higher, and the use amount of pesticides is reduced. Detailed Description In order to make the technical problems, technical solutions and advantages to be solved by the present invention more apparent, the following detailed description will be made with reference to specific embodiments. All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps. Any feature disclosed in this specification (including any accompanying claims, abstract) may be provided with respect to each feature disclosed herein, unless otherwise indicated, as an example of a generic series of equivalent or similar features. Firstly, the invention provides a weeding composition which comprises the following components of cyhalofop-butyl, dimetryn and gamma-aminobutyric acid, wherein the mass ratio of the cyhalofop-butyl to the dimetryn to the gamma-aminobutyric acid is (8-10) to (3-4). Illustratively, the mass ratio of cyhalofop-butyl, bentazone, and gamma-aminobutyric acid may be (8:8:3), (9:9:3.5), (10:10:4), or (10:10:3). Preferably, in the present invention, the cyhalofop-butyl used is 4% cyhalofop-butyl, the dimedone is 460g/L dimedone, and the gamma-aminobutyric acid is 450g/L gamma-aminobutyric acid. Secondly, the invention provides application of the weeding composition in preparation of herbicides for preventing and killing weeds in paddy fields. Illust