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Weeding composition containing metamifop, clomazone and bispyribac-sodium

A technology of fenpyramid and herbicidal composition, which is applied in the field of agrochemicals, can solve problems such as environmental pollution, weeds are prone to drug resistance, and the herbicidal spectrum is narrowed, so as to achieve low cost, delay weed drug resistance, The effect of reducing production cost and use cost

Inactive Publication Date: 2017-05-31
ZHEJIANG TIANFENG BIOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Herbicide varieties containing a single active component have defects in weed control to varying degrees, such as weeds are prone to resistance after continuous use, the herbicide spectrum becomes narrower, and environmental pollution is caused.

Method used

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  • Weeding composition containing metamifop, clomazone and bispyribac-sodium
  • Weeding composition containing metamifop, clomazone and bispyribac-sodium
  • Weeding composition containing metamifop, clomazone and bispyribac-sodium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In order to prevent and control the annual weeds in rice fields in agricultural production, the inventors used three components of fenpyramid, clomazone and bispyribac to conduct indoor toxicity testing research. The specific method: indoor potting method for stem and leaf spraying For the treatment, the test refers to the "Pesticide Indoor Bioassay Test Guidelines for Herbicide Part VII".

[0019] According to the Colby method to evaluate the combination of herbicides (NY / T 1155.7-2006), the formula is as follows: E 0 =a*b*c / 100 (3-1) , in the formula, a is the inhibitory rate of the fresh weight of the target weeds when oxafenamide is used alone at a certain dose; b is the inhibitory rate of the fresh weight of the target weeds when the clomazone is used alone; Target weed fresh weight inhibition rate; E 0 =Theoretical value of the target fresh weight inhibition rate when the three kinds of agents are mixed; E is the measured value of the target weed fresh weight in...

Embodiment 2

[0034] Formulation example 2: 28% oxazole · isoxa · bispyribac suspension concentrate (15:10:3)

[0035] Methazone 15%, Clomazone 10%, Bisfluben 3%, Phenylphenol Ethoxylate Phosphate 5%, Castor Oil Ethoxylate 4%, Polyoxyethylene Polyoxypropylene Embedded Segment copolymer 3%, silicone defoamer 0.1%, ethylene glycol 5%, magnesium aluminum silicate 1%, xanthan gum 0.12%, sodium benzoate 0.4%, water balance. Mix the above ingredients (removing xanthan gum) according to the stated ratio evenly, grind the obtained material with a horizontal sand mill so that the average particle size of the obtained material is less than 5 microns, add 2% xanthan gum mother liquor to prepare, and then 28% oxazole can be obtained ·Diclofenac·bispyribac suspension concentrate.

Embodiment 3

[0036] Formulation example 3: 34% oxazole · isoxa · bispyribac ether water dispersible granules (20:6:8)

[0037] Mefenacet 20%, Clomazone 6%, Bisfluben 8%, Sodium Diisobutyl Naphthalene Sulfonate 3%, Alkyl Naphthalene Sulfonate Formaldehyde Condensate (MORWET D-425) 6%, Polycarboxylate dispersant (TERSPERSE 2700) 3%, sodium sulfate 8%, cornstarch balance. Mix all the above-mentioned ingredients evenly according to the stated ratio, and make the average particle size of the obtained material less than 5 microns after jet crushing, add water and knead, transfer to a granulator to granulate, and dry to obtain 34% oxazole · isoxa · Bispyribac ether water dispersible granules.

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Abstract

The invention discloses a weeding composition containing metamifop, clomazone and bispyribac-sodium, which is prepared from the following effective components: metamifop, clomazone and bispyribac-sodium, wherein the weight ratio of metamifop, clomazone and bispyribac-sodium is (10-50):(5-45):(1-9). According to the weeding composition, the herbicide controlling spectrum can be obviously expanded, and the overall prevention and removal effect on rice field weeds is enhanced; meanwhile, the composition is high in safety to rice, and is a very good novel drug composition for preventing and removing annual weeds in a rice field.

Description

technical field [0001] The invention belongs to the field of agrochemicals, and in particular relates to a herbicidal composition aimed at solving the problem of controlling annual weeds in paddy fields. Background technique [0002] Metamifop belongs to the class of aryloxyphenoxypropionate herbicides, and its mechanism of action is to inhibit the biosynthesis of acetyl-CoA carboxylase. A few days after the application, the leaves of sensitive weeds will turn green and inhibit their growth. Generally, weeds will dry up and die after 2 weeks. It is mainly used to control most of the annual grass weeds in transplanted rice fields and direct-seeded fields, such as barnyard grass, stephenia, goosegrass, etc. [0003] Clomazone is a heterocyclic herbicide, which can be absorbed by the roots and seedlings of plants, which can hinder the production of chlorophyll and the accumulation of plastid pigments in sensitive plants, cause albinism, and inhibit the growth of Hill in the ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N43/76A01N43/54A01P13/00
CPCA01N43/80A01N43/54A01N43/76A01N2300/00
Inventor 陈丰喜祁月月王国华陈涛范伟赠
Owner ZHEJIANG TIANFENG BIOLOGICAL SCI
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