CN103749449A - Weeding composition - Google Patents

Abstract

The invention discloses a weeding composition, which is characterized in that the active ingredient is compounded from mesotrione and fluoroglycofen ethyl, and the weight percentage of each component is as follows: 10% of mesotrione and 20% of fluoroglycofen ethyl and balance being emulsifier and solvent; the solvent is selected from xylene or dichloromethane. The emulsifier is selected from one or several of polyoxyethylene nonyl phenyl ether, alkyl benzene calcium sulfate, phenethyl phenyl polyoxyethylene-polyoxypropylene ether. After each effective ingredient of the composition is mixed, the advantages are complemented, thereby minimizing amount, delaying weed resistance generation with good weeding effect and saved labor and time.

Description

A kind of Herbicidal combinations

Technical field

The present invention relates to a kind of Herbicidal combinations, especially a kind of compound weeding composition containing mesotrione, fluoroglycofen-ethyl, belongs to agriculture technical field.

Background technology

Along with social progress, in China rural area, the theory that science and technology is tilled the land is rooted in the hearts of the people, and weed killer herbicide is widely used.But long-term or simple one or the class weed killer herbicide of using, easily forms intrinsic herbicide spectrum, causes the scope relative narrower of management of weeds, easily makes grass change mutually simultaneously, and after susceptible weeds is controlled, the weeds that drug resistance is strong are but more easily grown up.Mesotrione is a kind of interior selective herbicide of inhaling, better to most broad leaved weeds and following grassy weed preventive effect of 4 leaf phases, to all safety of corn, sugarcane, there is good cauline leaf and process actively, there is again soil and close down effect, efficient, low-residual and to environment friendliness, the exploitation of this product is conducive to the development of pesticide producing and modern agriculture, but it is on the high side, the cost of applying is higher, and extensive use process is slow.Fluoroglycofen-ethyl, chemical name 0-[5-(the chloro-a of 2-, a; a-tri-is fluoro-to toloxyl)-2-nitro benzoyl] hydroxyl ethyl acetate, it is diphenyl ether herbicide, is that protoporphyrin is oxidized mould inhibitor; once it is absorbed by plants, only under illumination condition, just bring into play effect.This compound reacts with mol-chloric, generates the virose compound tetrapyrrole of plant cell tool, gathers and has an effect, and in accumulation process, plant cell membrane is disappeared completely, then causes cell inclusion seepage.

People start to be devoted to the research and development of corn, sugarcane field weed killer herbicide already.Investigation discovery, many weed killer herbicide products to corn safety are more responsive to sugarcane.Application number is that 031052479 Chinese invention patent application discloses a kind of herbicidal composition, it is characterized in that containing sym-trinitrobenzene, amide-type and paraquat weed killer herbicide, wherein triazine herbicide can be atrazine, Simanex or propazine, acetamide-group herbicides can be Acetochlor, butachlor, propisochlor or isopropyl methoxalamine, triazine herbicide: acetamide-group herbicides: paraquat is 1-10: 1-10: 1.It is can be before seedling or after seedling directed uses controlling weeds on as the crops of corn and sugarcane.Application number is that 2009101620373 Chinese invention patent application discloses a kind of microemulsion weeding composition containing paraquat and fluoroglycofen-ethyl, it is take paraquat and fluoroglycofen-ethyl as active component, take water as carrier, then add a small amount of solvent and surfactant composition.For nonirrigated farmland weeding, prior to seeding, broadcast rear seedling before or its middle and late growth stage spraying or protectiveness directed spraying carry out management of weeds.People take much count of the composite of weed killer herbicide to study, and expand herbicide spectrum, improve drug effect to reach, and reduce the effect of control of weeds cost.

Summary of the invention

The deficiency existing for prior art, technical problem to be solved by this invention is to provide a kind of Herbicidal combinations, with the weeds of control of maize, sugarcane field, improve the preventive effect of weed killer herbicide, reduce control of weeds cost, solve the shortcoming that sugarcane field herbicide effects is poor, herbicidal spectrum is narrow, prevent and kill off the multiple weeds in corn, sugarcane field, and to succession crop safety.

For solving the problems of the technologies described above, the technical solution used in the present invention is, a kind of Herbicidal combinations, its active ingredient by mesotrione, fluoroglycofen-ethyl is composite forms, the percentage by weight of each component is:

Mesotrione 10%, fluoroglycofen-ethyl 20, surplus is emulsifier and solvent;

Described solvent is selected from dimethylbenzene or carrene.

Described emulsifier is selected from one or more in polyoxyethylene nonylphenol ether, alkylbenzene calcium sulphate, phenethyl phenyl polyoxyethylene polyoxypropylene ether.

Between the active ingredient of said composition, there is no antagonism, to crop safety, its herbicidal effect is not only better than the simple superposition of usefulness separately, and has made up the deficiency on each comfortable herbicidal spectrum.Grass family in corn, sugarcane field, broad-leaved and sedge weed are all had to good preventive effect, can significantly expand herbicide spectrum.

Herbicidal combinations of the present invention, can effectively prevent and kill off the various weeds in corn, sugarcane field, and herbicidal effect is good, time saving and energy saving.Mixed rear mutual supplement with each other's advantages of each active principle of said composition, consumption reduces, and has delayed herbicide resistance generation.

Medicament involved in the present invention is purchased from market.The preparation method of Herbicidal combinations of the present invention is industry conventional process.

Embodiment

Below in conjunction with embodiment to the detailed description of the invention.

Embodiment 1

A kind of Herbicidal combinations, its active ingredient by mesotrione, fluoroglycofen-ethyl is composite forms, the percentage by weight of each component is: mesotrione 10%, fluoroglycofen-ethyl 20, surplus is emulsifier and solvent;

Described solvent is dimethylbenzene; Described emulsifier is phenethyl phenyl polyoxyethylene polyoxypropylene ether.

Embodiment 2

A kind of Herbicidal combinations, its active ingredient by mesotrione, fluoroglycofen-ethyl is composite forms, the percentage by weight of each component is: mesotrione 10%, fluoroglycofen-ethyl 20, surplus is emulsifier and solvent;

Described solvent is carrene, and described emulsifier is the composition of alkylbenzene calcium sulphate and polyoxyethylene nonylphenol ether.

The Herbicidal combinations of the various embodiments described above obviously improves the integrated control effect of weeds, has expanded herbicide spectrum.Said composition, to sugarcane and succession crop safety thereof, all has good preventive effect to the grass family in sugarcane field, broad-leaved and sedge weed.Said composition is conducive to increase crop yield, alleviates peasant's labour intensity, can bring better economic benefit and social benefit.

Claims (1)

1. a Herbicidal combinations, is characterized in that: its active ingredient by mesotrione, fluoroglycofen-ethyl is composite forms, the percentage by weight of each component is:

Mesotrione 10%, fluoroglycofen-ethyl 20, surplus is emulsifier and solvent;

Described solvent is selected from dimethylbenzene or carrene;

Described emulsifier is selected from one or more in polyoxyethylene nonylphenol ether, alkylbenzene calcium sulphate, phenethyl phenyl polyoxyethylene polyoxypropylene ether.