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

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

Example Embodiment

[0023] Example 1: 35% Pyrimsulfuron·Mexazone EC (34:1)

[0024] Pyrimsulfuron 34%, trimethoprim 1%, alkylphenol polyoxyethylene ether 4%, phenethylphenol polyoxyethylene ether 15%, xylene to make up to 100%, according to the conventional preparation method to prepare the quality A 35% emulsifiable concentrate.

Example Embodiment

[0025] Example 2: 30% Pyrimsulfuron·Mexazone suspension (29:1)

[0026] Pyrimsulfuron 29%, trimethoprim 1%, sodium methyl naphthalenesulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ethylene glycol 7%, phosphoric acid Tributyl ester is 2%, silicone oil is 0.2%, the balance is water, and it is formulated into a suspension with a mass percentage of 30% according to a conventional preparation method.

Example Embodiment

[0027] Example 3: 60% Pyrimsulfuron·Mexazone water dispersible granules (59:1)

[0028] Pyrimsulfuron 59%, trimethoprim 1%, NNO (sodium methylene dinaphthalene sulfonate) 5%, ammonium sulfate 3%, polyvinyl alcohol 2%, kaolin supplemented to 100%, according to the conventional preparation method It is formulated into water dispersible granules (WDG) with a mass percentage 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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