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Mixed weeding composite containing bispyribac and pyrazosulfuron

A herbicidal composition, a technology for pyrazosulfuron-methyl, is applied in the field of pesticides, and can solve the problems of inability to completely and effectively control weeds in paddy fields, residual poisoning of current crops or subsequent crops, large dosage of herbicides, and the like, and achieve safety. Improve, improve efficacy, long-lasting effect

Inactive Publication Date: 2012-05-23
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 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. Uniformity is also likely to cause residual toxicity to current crops or subsequent crops

Method used

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  • Mixed weeding composite containing bispyribac and pyrazosulfuron
  • Mixed weeding composite containing bispyribac and pyrazosulfuron
  • Mixed weeding composite containing bispyribac and pyrazosulfuron

Examples

Experimental program
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Effect test

Embodiment 1

[0019] 5% of bispyribac, 5% of pyrazosulfuron-methyl, 5% of calcium dodecylbenzenesulfonate, 3% of alkylphenol polyoxyethylene ether, 100% of solvent oil, prepared according to the conventional preparation method to make active ingredients with a mass of 100%. 10% emulsifiable concentrate.

Embodiment 2

[0021] Bispyribac 10%, pyrazosulfuron 10%, sodium methylnaphthalenesulfonate formaldehyde condensate 6%, nonylphenol polyoxyethylene ether 3%, magnesium aluminum silicate 0.5%, ethylene glycol 2%, water to 100%, according to conventional preparation methods, it is prepared into a suspending agent with an active ingredient mass percent content of 20%.

Embodiment 3

[0023] 20% of bispyribac, 10% of pyrazosulfuron-methyl, 5% of NNO (sodium methylene bis-naphthalene sulfonate), 2% of polyvinyl alcohol, and 100% of kaolin, prepared according to the mass percentage of active ingredients according to the conventional preparation method 30% water dispersible granules.

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Abstract

The invention belongs to the technical field of agricultural agents, and particularly relates to a mixed weeding composite containing bispyribac and pyrazosulfuron. The weeding composite takes the bispyribac and the pyrazosulfuron as main active ingredients, and the mass ratio of the bispyribac and the pyrazosulfuron is 1-99 / 1-99. The composite and agricultural agent-allowed auxiliary agents are processed into missible oils, suspending agents, water dispersible granules, wettable powder and various dosage forms. The weeding composite can prevent and weed ephemeral weeds of grass families, broad leaves and sedge families in paddy field, compared with a single herbicide, under the premise of improving the efficacy, the mixed weeding composite has the weakened herbicide resistance, wide weeding scope and long duration, is safe to paddy and succeeding crops, and is an ideal weeding composite for the paddy field.

Description

technical field [0001] The invention belongs to the field of pesticides and relates to a mixed herbicidal composition containing bispyribac and pyrazosulfuron-methyl. The herbicidal composition can be used to prepare a herbicide for post-emergence weeding in paddy fields. Background technique [0002] Bispyribac, also known as Nongmeili, bispyrimidine salicylate, chemical name: 2,6-bis(4,6-dimethoxypyrimidinyl-2-oxyl)sodium benzoate. It is a phenoxycarboxylic acid herbicide, which mainly inhibits the synthesis of acetic acid through roots and leaves and hinders the biosynthesis of branched chain amino acids. It is a selective herbicide and is used in direct-seeding rice fields with a wide weeding spectrum. Its structural formula is as follows: [0003] [0004] Pyrazosulfuron-methyl, also known as Grass Buster, Mercury, and Han Lexing. Chemical name: 5-(4,6-dimethoxypyrimidinyl-2-carbamoylsulfamate-1-methylpyrazole-4-carboxylic acid (ethyl ester), structural formula: ...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/54A01P13/00
Inventor 齐武贠琰郭崇友黄爱新彭永强
Owner NANJING HUAZHOU PHARMA
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