Weeding composition containing propyrisulfuron and clomazone and application thereof

A herbicidal composition, the technology of promasulfuron-methyl, applied in the fields of herbicides and pesticides, can solve the problem that the herbicidal combination of promethazone-methyl and clomazone has not been found, can not fully and effectively control weeds in paddy fields, Residual toxicity of crops in the current season or subsequent crops, etc., to achieve the effect of improving drug efficacy, safety, and safety

Inactive Publication Date: 2017-08-18
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, herbicides in paddy fields are limited by the safety of crops, and the herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in paddy fields. Too long effective period, excessive dosage or uneven application will easily cause residual toxicity to current crops or subsequent crops
The inventor found through research that the synergistic compounding of herbicides is an effective measure to expand the spectrum of weed control and improve the control effect. So far, no herbicidal composition related to the compounding of promasulfuron-methyl and clomazone has been found.

Method used

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  • Weeding composition containing propyrisulfuron and clomazone and application thereof
  • Weeding composition containing propyrisulfuron and clomazone and application thereof
  • Weeding composition containing propyrisulfuron and clomazone and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: 35% clomazone·promasulfuron-methyl EC (34:1)

[0026] Clomazone 34%, promasulfuron-methyl 1%, alkylphenol polyoxyethylene ether 4%, phenethylphenol polyoxyethylene ether 15%, xylene supplemented to 100%, prepared according to conventional preparation methods The mass percent composition is 35% emulsifiable concentrate.

Embodiment 2

[0027] Example 2: 30% clomazone·promasulfuron-methyl suspension concentrate (29:1)

[0028] Clomazone 29%, Promethazone 1%, Sodium Naphthalene Sulfonate Formaldehyde Condensate 6%, Nonylphenol Polyoxyethylene Ether 3%, Magnesium Aluminum Silicate 0.5%, Ethylene Glycol 7%, 2% of tributyl phosphate, 0.2% of silicone oil, and the balance of water are formulated into a suspending agent with a mass percentage of 30% according to a conventional preparation method.

Embodiment 3

[0029] Example 3: 60% clomazone·promasulfuron-methyl water-dispersible granule (59:1)

[0030] Clomazone 59%, promasulfuron-methyl 1%, NNO (sodium methylene bis-naphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin supplemented to 100%, according to the conventional preparation Methods Prepare water dispersible granules (WDG) with a mass percentage of 60%.

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Abstract

The invention discloses a herbicidal composition containing promasulfuron-methyl and clomazone. The herbicidal composition uses promasulfuron-methyl and clomazone as main active ingredients, and clomazone and The mass ratio of sulfuron-methyl is 1:60-60:1. The invention also discloses the application of the herbicidal composition in post-emergence weeding in paddy fields, especially the application in controlling gramineous and broad-leaved weeds in paddy fields. The herbicidal composition of the present invention is used for weeding in paddy fields, can prevent and eliminate various grasses and broad-leaved weeds in paddy fields, and has remarkable effects. Compared with a single agent, on the premise of improving the efficacy, it can delay weed resistance and weed control. It has a wide spectrum, a long duration of effect, and is safe for rice and subsequent crops.

Description

technical field [0001] The invention belongs to the technical field of pesticides, especially the field of herbicides, and specifically relates to a binary compound herbicidal composition containing promasulfuron-methyl and clomazone. The herbicidal composition can be applied to post-emergence weeding in paddy fields. Background technique [0002] Propyrisulfuron is a selective broad-spectrum herbicide, which has a good control effect on weeds resistant to sulfonylurea herbicides, and is effective on older barnyardgrass, sedge, and broad-leaved grass. Can be foliar spray, shake application. [0003] Clomazone, chemical name: 2-(2-chlorobenzyl)-4,4-dimethylisoxazol-3-one. Structural formula: [0004] [0005] Clomazone is a pigment-inhibiting pre-emergence herbicide developed by FMC Corporation of the United States in 1984. It inhibits the production of chlorophyll and chlorophyll-protective pigments in plants, causing plants to die in a short period of time. But when i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N43/80A01P13/00
CPCA01N47/36A01N43/80
Inventor 郭崇友高瑞花石振龙程清云孙会杰
Owner NANJING HUAZHOU PHARMA
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