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Chemical herbicide composition and application thereof

A herbicide and composition technology, applied in the field of chemical herbicide composition, can solve problems such as changes in weed population structure, negative impact on the ecological environment, and acceleration of weed resistance, so as to delay drug resistance and shorten the onset time , Reduce the effect of dosage and drug damage

Inactive Publication Date: 2020-09-04
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in the current application of chemical herbicides, such as excessive use of herbicides, long-term use of a single herbicide or the same mechanism of herbicides, which will not only cause soil pollution, have a serious negative impact on the ecological environment, but also accelerate The emergence of weed resistance changes the population structure of weeds, affects the weeding efficiency, and poses a huge threat to weed control

Method used

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  • Chemical herbicide composition and application thereof
  • Chemical herbicide composition and application thereof

Examples

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Effect test

Embodiment 1

[0019] A compound preparation comprising the chemical herbicide composition of the present invention, the chemical herbicide composition is composed of carfentrazone-ethyl, cyhalofop-ethyl and ametryn in a mass ratio of 2.5:1.5:1. It should be noted that the mass ratio in the composition of carfentrazone-methyl, cyhalofop-ethyl and ametryn refers to the mass ratio of the original drug of each agent.

[0020] Wherein, the purity of the original drug of the carfentrazone-ethyl ≥ 93%, was purchased from Zhangjiakou Jinjin Chemical Co., Ltd.; the purity of the original drug of the cyhalofop-ethyl ≥ 98%, was purchased from Henan Tellier Chemical Products Co., Ltd.; The purity of the original drug of ametrazine is ≥95%, which was purchased from Nanjing Lakeway Technology Co., Ltd.

[0021] Its preparation method is:

[0022] 1) In terms of mass percentage, mix 25% carfentrazone-ethyl technical, 30% cyclohexanone and 10% alkylaryl polyoxypropylene polyoxyethylene ether, stir and dis...

Embodiment 2

[0027] A compound preparation comprising the chemical herbicide composition of the present invention, the composition is composed of carfentrazone-ethyl, cyhalofop-ethyl and ametryn in a mass ratio of 2.1:1.5:1. According to the components and dosage of the composition, an appropriate amount of the auxiliary agent is added respectively, and the preparation is carried out by the same method as in Example 1 to obtain the suspoemulsion of the compound preparation.

Embodiment 3

[0029] A compound preparation comprising the chemical herbicide composition of the present invention, the composition is composed of carfentrazone-ethyl, cyhalofop-ethyl and ametryn in a mass ratio of 3:2:1. According to the components and dosage of the composition, an appropriate amount of the auxiliary agent is added respectively, and the preparation is carried out by the same method as in Example 1 to obtain the suspoemulsion of the compound preparation.

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Abstract

The invention discloses a chemical herbicide composition and application thereof, and belongs to the technical field of herbicides. The chemical herbicide composition consists of a triazolinone herbicide, a propionate herbicide and a triazine selective systemic conduction herbicide in a mass ratio of (2.1-3): (1.4-2): 1, wherein the triazolinone herbicide is carfentrazone-ethyl; the propionate herbicide is cyhalofop butyl; the triazine selective systemic conduction herbicide is ametryn. The composition can be applied to prevention and removal of compositae weed sonchus brachyotus. Known herbicides are combined and reasonably proportioned and then are applied to prevention and removal of sonchus brachyotus. Compared with a single agent, the mixed single agent has the advantages that the control effect is greatly improved, the advantages of the single agents can be complemented, the dosage of the single agents is reduced, the use dosage and phytotoxicity of the triazine selective systemic conduction herbicide are reduced, and meanwhile, the mixed single agents are synergetic and complementary and the generation of drug resistance of weeds is delayed.

Description

technical field [0001] The invention belongs to the technical field of herbicides, in particular to a chemical herbicide composition and its application. Background technique [0002] Chemical herbicides are a class of agents that can effectively inhibit or eliminate the growth of weeds. Their mechanism of action mainly includes acting on plants, forcing the photosynthetic reaction, respiration and nitrogen metabolism of plants to fail; or affecting the division, elongation and growth of plant cells. Differentiation causes the plant to stop growing until it dies; or acts on the cells of the plant to increase the thickness of the meat cells, thereby destroying the water balance in the plant, and finally causing the plant to lose water and die. Chemical herbicides are widely used in agricultural and forestry production, and are recognized as the most efficient weed control method to increase crop yield and increase agricultural benefits. However, there are still many problems...

Claims

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Application Information

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IPC IPC(8): A01N43/653A01N39/04A01N43/70A01P13/00
CPCA01N39/04A01N43/653A01N43/70
Inventor 李玮沈硕
Owner QINGHAI UNIVERSITY
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