Compound weeding composition

A herbicidal composition and the technology of the composition, applied in the field of pesticides, can solve the problems of low safety, pesticide damage in farmland, unfavorable rice growth, etc., and achieve the effect of good weeding effect, wide weeding spectrum, and crop safety

Inactive Publication Date: 2012-04-25
刘东卫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, herbicides have been widely used in agricultural production, but due to the large amount of abuse and poor adaptability to different situations, a single herbicide can easily lead to problems such as poor weeding effect, low safety, and easy to cause different degrees of production reduction.
In recent years, herbicide mixed preparations have increased sharply, but the unfavorable conditions such as repeated preparation and use of a large number of low-level, and only focusing on low cost while ignoring safety and efficacy are still serious, which has caused phytotoxicity to farmland, not only to rice. Unfavorable growth will also affect the growth of the next stubble
In addition, the control of refractory weeds is still a difficult problem in the application of existing herbicides.

Method used

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  • Compound weeding composition

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Experimental program
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Effect test

Embodiment 1

[0015] The weight ratio and preparation method of each component: isoproturon 55%, clodinafop-propargyl 5%, thifensulfuron-methyl 1%, sodium lignosulfonate and alkylnaphthalene sulfonate 15%, and the balance is kaolin and white carbon black. Pour each component into the mixing tank at one time, evenly and pulverize under stirring.

Embodiment 2

[0017] The weight ratio and preparation method of each component: isoproturon 55%, clodinafop-propargyl 10%, thifensulfuron-methyl 1%, sodium lignosulfonate and alkylnaphthalene sulfonate 15%, and the balance is kaolin and white carbon black. Pour each component into the mixing tank at one time, evenly and pulverize under stirring.

Embodiment 3

[0019] The weight ratio and preparation method of each component: isoproturon 40%, clodinafop-propargyl 4%, thifensulfuron-methyl 2%, sodium lignosulfonate 15%, and the balance is kaolin. Pour each component into the mixing tank at one time, evenly and pulverize under stirring.

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PUM

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Abstract

The invention discloses a compound weeding composition which comprises active ingredients of alon, clodinafop-propargyl and thifensulfuron in a mass ratio of (30-60):(1-10):(0.5-5). In the composition, the components are synergic, thus the composition has a good weeding effect, a wide weeding spectrum, few residues, safety to crops, low cost and wide applicability, and can be applied to weeds which are difficult to remove.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a compound herbicidal composition. Background technique [0002] Isoproturon is a substituted urea selective herbicide. The pure product is white crystal, colorless and odorless, with a melting point of 151-153°C. The solubility in water at 20°C is 70mg / L. Hardly soluble in water, soluble in most organic solvents, relatively stable to acid, alkali and light, available in wettable powder, low toxicity to humans and animals. Rat acute oral toxicity LD501826mg / kg. Prepared by reacting p-isopropylphenyl isocyanate with dimethylamine. Used for controlling annual weeds in barley, wheat, cotton, peanut, corn, rice, and bean crops, the dosage is 1.0-1.5kg / ha. Isoproturon is a systemic conduction soil treatment agent and a stem and leaf treatment agent. After the pesticide is absorbed by the roots of the plant, it accumulates in the leaves, inhibits photosynthesis, and leads to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N47/30A01N43/40A01P13/00
Inventor 刘东卫
Owner 刘东卫
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