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Safety herbicide for corn field

A technology of herbicides and cornfields, applied in the direction of herbicides, algicides, biocides, biocides, etc., can solve the problems that herbicides cannot be effectively controlled, the herbicide spectrum is not wide enough, and the efficacy is reduced, so as to reduce the The frequency and amount of application, the effect of broad herbicidal spectrum and less environmental pollution

Inactive Publication Date: 2012-11-07
SHANDONG LVBANG CROP SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] (1) The herbicide spectrum is not wide enough, and some herbicides cannot be effectively controlled. Even if the two are combined, the effect on some malignant weeds is still not enough; (2) Many weeds have developed resistance to commonly used herbicides, which greatly improves the efficacy of the herbicides. Reduced; (3) Sensitive to sweet corn, sticky corn, and Denghai series corn, which is not safe enough

Method used

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  • Safety herbicide for corn field
  • Safety herbicide for corn field
  • Safety herbicide for corn field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] wettable powder

[0049]

[0050]

[0051] The active ingredients, carriers, additives, etc. are fully mixed, and after being pulverized by a jet mill, a wettable powder with a solid appearance and uniform appearance is formed.

Embodiment 2

[0053] suspoemulsion

[0054]

[0055] Fully disperse and mix the active ingredients, excipients, adjuvants and water, and grind to obtain a suspoemulsion, or first make a synthetic mother liquor of fenfentrazone and atrazine and grind it into a suspending agent, and then mix it with emulsified metropen Amine mixing and shearing etc. are made into suspoemulsion.

Embodiment 3

[0057] oil suspension

[0058]

[0059] Mix the additives, active ingredients, auxiliary materials, vegetable oil, etc. thoroughly first, then shear with high-speed shear, and then sand with a sand mill to form an oil suspension with a uniform appearance.

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Abstract

The invention relates to safety herbicide for a corn field. An active ingredient of the safety herbicide is prepared by mixing topramezone and one or more than one of atrazine, ametryn, amides active compound, the mass ratio of topramezone to atrazine is 0.5-8:1-30, the mass ratio of topramezone to ametryn is 0.5-8:1-30, and the mass ratio of topramezone to amides active compound is 0.5-8:1-30. The amides active compound is alachlor, pretilachlor, butachlor or metolachlor. The topramezone has remarkable synergistic effect after adding atrazine / ametryn, the herbicide has good prevention and control effect on weeds and has good preventing and removing effect on malice broad leaf weeds such as cirsium setosum, chicory, acalypha australis and dayflower. The topramezone has a wide weed control spectrum, is safe for the height of corns, and can effectively synergize after combining the atrazine and the like. After combination, use amount of atrazine alone is reduced, and safety of the corns is improved.

Description

Technical field: [0001] The invention relates to a chemical pesticide, in particular to a corn field safe herbicide. Background technique: [0002] The chemical name of fenpyrazone (Topramezone Baowei, fenpyrazone) is: [3-(4,5-dihydroxyisoxazolyl)-4-methylsulfonyl-2-methylphenyl-(5 -Hydroxy-1-methyl-1H-pyrazol-4-yl)methanone], molecular formula: C 16 h 17 N 3 o 5 S, its structural formula is: [0003] [0004] Benfentrazone is a new type of pyrazolone herbicide for post-emergence stem and leaf treatment systemic conduction, the mechanism of action is to inhibit 4-hydroxyphenylpyruvate dioxygenase (HPPD) in the biosynthesis of plastoquinone , indirectly affects the synthesis of carotenoids, and interferes with the synthesis and function of chloroplasts under light conditions, resulting in severe chlorosis, tissue necrosis, and plants usually die after 14 days of treatment. Due to the oxidative degradation of chlorophyll, the symptoms of poisoning are most obvious esp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N43/80A01N43/70A01N37/26A01N37/22A01P13/00
Inventor 王云辉刘志文袁军李净净
Owner SHANDONG LVBANG CROP SCI CO LTD
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