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Weeding composition and application thereof

A herbicidal composition and composition technology, applied in the field of pesticide chemistry, can solve the problems that herbicides cannot effectively control wheat weeds, complex weeds in wheat fields, etc.

Pending Publication Date: 2021-05-11
青岛恒宁生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the diverse growth characteristics and cultivation modes of crops, intercropping, intercropping and other agricultural operations, the occurrence of weeds in wheat fields is more complicated. Different types of weeds have different emergence stages, and the use of a single herbicide cannot effectively control the entire growth period of wheat. the weeds

Method used

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  • Weeding composition and application thereof
  • Weeding composition and application thereof
  • Weeding composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0038] Preparation example 1: 45% metazazol sulfone, diflufenamide, oxadiazone suspension concentrate (10:10:25)

[0039] Formula: 10% metazazone sulfone, 10% diflufenamide, 25% oxadiazone, 2% sodium alkyl sulfate, 3% alkylphenol formaldehyde resin polyoxyethylene ether, 0.5% sodium benzoate, 5% propylene glycol , 0.2% silicone defoamer, deionized water to make up the balance;

[0040] Preparation method: According to the proportion of the formula, pyrazafen, diflufenican, oxadiazone, surfactant and other functional additives are placed in the reaction kettle in sequence, mixed with water, and subjected to high-speed shearing, wet sand Grind, and finally homogeneously filter to obtain the suspension concentrate product.

preparation example 2

[0041] Preparation example 2: 25% metazazol sulfone, diflufenamide, oxadiazone suspension concentrate (5:5:15)

[0042] Formula: 5% metazazone sulfone, 5% diflufenican, 15% oxadiazone, 4% sodium polycarboxylate, 2% sodium alkyl sulfate, 2% sodium polyacrylate, 0.5% ethylene glycol, 0.5 % sodium benzoate, 0.1% organic silicon defoamer, deionized water to make up the balance;

[0043] Preparation method: same as preparation example 1.

preparation example 3

[0044] Preparation example 3: 35% metazazol sulfone, diflufenamide, oxadiazone suspension concentrate (5:5:25)

[0045] Formula: 5% metazazone sulfone, 5% diflufenamide, 25% oxadiazone, 5% alkylphenol ethoxylates, 3% sodium naphthalenesulfonate, 2% carboxymethyl cellulose, 0.5% Sorbic acid, 0.1% silicone defoamer, deionized water to make up the balance;

[0046] Preparation method: same as preparation example 1.

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PUM

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Abstract

The invention discloses a weeding composition. In the weeding composition, the weight ratio of the active components pyroxasulfone to diflufenican to oxadiazon is (1-20): (1-20): (5-50). The percentage content of the active components in the herbicide composition is 10%-60%. The herbicide composition disclosed by the invention has a synergistic effect, and compared with single use or binary use of single agents, the herbicide composition disclosed by the invention has the advantages that the weeding effect is obviously improved, the herbicide controlling spectrum is expanded, meanwhile, the pesticide use amount is reduced, the environmental pollution is alleviated, and the generation of weed resistance is delayed.

Description

technical field [0001] The invention belongs to the field of pesticide chemistry, and in particular relates to a herbicidal composition containing metazafen-sulfone, diflufenican and oxadiazone and an application thereof. Background technique [0002] Wheat is one of the main crops in our country. With the increase of weed damage in wheat fields, it has seriously affected the production of wheat. At present, domestic wheat field herbicides mainly use stem and leaf sprays to treat weeds. However, due to long-term use of such herbicides, weed resistance has increased year by year. In many areas, conventional stem and leaf treatment agents have been unable to effectively control weeds. At present, the phenomenon of replacing stem and leaf treatment agents with soil treatment agents has gradually appeared in the market, but the quality of soil treatment agents is uneven, and phytotoxicity often occurs. Facing this current situation, how to find a kind of efficient and safe whea...

Claims

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Application Information

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IPC IPC(8): A01N43/80A01N43/40A01N43/824A01P13/00
CPCA01N43/80A01N43/40A01N43/82
Inventor 孙名帅赵月超田东亚刘金玲刘志航
Owner 青岛恒宁生物科技有限公司
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