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Weeding composition containing metazosulfuron and bentazone, and application thereof

A herbicidal composition, the technology of pyrazosulfuron-methyl, which is applied in the field of herbicides and pesticides, can solve the problem that the herbicidal combination of pyrazosulfuron-methyl and bentazone has not been found, can not completely and effectively control weeds in wheat fields, and when Residual toxicity of crops or subsequent crops, etc., to achieve the effect of improving efficacy, safety, and high safety

Inactive Publication Date: 2019-01-22
NANJING REDSUN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, herbicides in wheat fields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely and effectively control the occurrence of weeds in wheat 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 weed control spectrum and improve the control effect. So far, no herbicidal composition related to the compounding of pyrazosulfuron-methyl and bentazone has been found.

Method used

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  • Weeding composition containing metazosulfuron and bentazone, and application thereof
  • Weeding composition containing metazosulfuron and bentazone, and application thereof
  • Weeding composition containing metazosulfuron and bentazone, and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1: 35% pyrazosulfuron-benzazone EC (34:1)

[0024] pyrazosulfuron-methyl 34%, bentazone 1%, alkylphenol polyoxyethylene ether 4%, phenethylphenol polyoxyethylene ether 15%, xylene supplemented to 100%, prepared according to the conventional preparation method The percentage content is 35% emulsifiable concentrate.

Embodiment 2

[0025] Embodiment 2: 30% pyrazosulfuron-benzazone suspension concentrate (29:1)

[0026] pyrazosulfuron-methyl 29%, bentazone 1%, sodium methylnaphthalenesulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ethylene glycol 7%, phosphoric acid 2% of tributyl ester, 0.2% of silicone oil, and the balance of water are formulated into a suspension concentrate with a mass percent content of 30% according to a conventional preparation method.

Embodiment 3

[0027] Embodiment 3: 60% pyrazosulfuron-benzazone water-dispersible granules (59:1)

[0028] 59% pyrazosulfuron-methyl, 1% bentazone, 5% NNO (sodium methylene bis-naphthalene sulfonate), 3% ammonium sulfate, 2% polyvinyl alcohol, kaolin to make up to 100%, according to the conventional preparation method It is prepared as a water-dispersible granule (WDG) with a mass percent content of 60%.

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Abstract

The invention discloses a weeding composition containing metazosulfuron and bentazone. The weeding composition adopts the metazosulfuron and bentazone as main effective components, and a mass ratio ofthe metazosulfuron to the bentazone is 1:50 to 59:1. The invention also discloses an application of the weeding composition in wheat field weeding. The weeding composition can be used in wheat fieldweeding, and especially has a significant prevention and control effect on sedge broad leaf weeds in the wheat field. Compared with single doses, the weeding composition has the advantages of drug effect improvement, weed resistance delaying, broad weeding spectrum, long persistent period, and safety to wheat and later crops.

Description

technical field [0001] The invention belongs to the technical field of pesticides, in particular to the field of herbicides, and specifically relates to a herbicidal composition containing pyrazosulfuron-methyl and bentazone and its application. Background technique [0002] Metazosulfuron (metazosulfuron) is a sulfonylurea herbicide developed by Nissan Chemical Co., Ltd. It is mainly used for the control of velvetleum, amaranth, crabgrass and barnyardgrass in rice fields and wheat fields. [0003] Bentazone is a selective contact-killing post-emergence herbicide, which is used to treat the stems and leaves of weeds at the seedling stage. It is mainly used for wheat, soybean, peanut, rice and other crops to control broad-leaved weeds and sedge weeds, but it is ineffective against gramineous weeds. [0004] At present, herbicides in wheat fields are limited by the safety of crops, and their herbicidal spectrum is also limited. Using a single herbicide alone cannot completely...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/88A01P13/00
CPCA01N47/36A01N43/88
Inventor 郭崇友邢刚白杰洪鹏张宝俊
Owner NANJING REDSUN
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