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Weeding composition and post-emergence herbicide containing weeding composition

A herbicide composition and herbicide technology, applied in the direction of herbicides, algicides, biocides, animal repellents, etc., can solve the problems of farmers' farming inconvenience and the effect cannot be guaranteed, and achieve small environmental pollution and reduce The number of medications and the effect of the drug will show rapid results

Inactive Publication Date: 2021-07-23
HENAN HANSI CROP PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005]There are many kinds of herbicides on the market now, and many herbicides will cause weeds to develop resistance when used alone for a long time, which brings a lot of inconvenience to farmers
At present, herbicides in corn fields are mainly post-emergence herbicides. Pre-emergence herbicides are affected by climate factors, and the effect cannot be guaranteed. One-time application of post-emergence herbicides can control weeds in one growing season. Currently, post-emergence herbicides are commonly used It is mainly a herbicide for stem and leaf treatment, but in summer, the temperature is high, there is a lot of rain, and the weeds germinate quickly. There is an urgent need for a cornfield herbicide with good control effect, quick effect, and complete dead weeds.

Method used

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  • Weeding composition and post-emergence herbicide containing weeding composition
  • Weeding composition and post-emergence herbicide containing weeding composition

Examples

Experimental program
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Effect test

Embodiment 1

[0039] In this embodiment, the post-emergence herbicide is a wettable powder, and the wettable powder is composed of the following components in weight percentage: 1% to 10% of nicosulfuron, 1% to 10% of mesotrione, and 1% of atrazine ~65%, dispersant 5%~15%, wetting agent 5%~10%, the rest is carrier.

[0040] For example, use 50% atrazine, 10% nicosulfuron, 4% mesotrione, 7% sodium lauryl sulfate, 7% alkylphenol polyoxyethylene ether, fatty alcohol polyoxyethylene ether carboxylic acid Salt 4%, white carbon black 3%, the balance is the formula of light calcium carbonate, then its preparation method is: take 50% atrazine, 10% nicosulfuron, 4% mesotrione, dodecane 7% sodium base sulfate, 7% alkylphenol polyoxyethylene ether, 4% fatty alcohol polyoxyethylene ether carboxylate, 3% white carbon black, light calcium carbonate to 100%, mix evenly, after jet milling , that is, 64% atrazine · nicosulfuron · mesotrione wettable powder.

[0041] For example, use 50% atrazine, 6% nicos...

Embodiment 2

[0043] In this embodiment, the post-emergence herbicide is a water-dispersible granule, and the water-dispersible granule is composed of the following components by weight percentage: 1% to 10% of nicosulfuron-methyl, 1% to 10% of mesotrione, and 1%-65% dehydration agent, 5%-15% dispersant, 5%-10% wetting agent, 1%-10% disintegrant, and the rest is carrier.

[0044] For example, use 60% atrazine, 2% nicosulfuron, 2% mesotrione, 4% pull-off powder, 3% alkylbenzenesulfonate calcium dispersion, and 2% alkylphenol formaldehyde resin polyoxyethyl ether. %, white carbon black 1%, sodium bicarbonate 1%, light calcium carbonate 2%, its preparation method is: take 60% atrazine, 2% nicosulfuron, 2% mesotrione, Pull apart powder 4%, alkylbenzene sulfonate calcium dispersion 3%, alkylphenol formaldehyde resin polyoxyethyl ether 2%, white carbon black 1%, sodium bicarbonate 1%, light calcium carbonate 2%, mix well , after jet crushing to obtain wettable powder, add water to mix uniformly,...

Embodiment 3

[0047] In this embodiment, the post-emergence herbicide is a dispersible oil suspension concentrate, and the dispersible oil suspension concentrate is composed of the following components by weight percentage: 1% to 10% of nicosulfuron-methyl, 1% to 10% of mesotrione, and 10% to 40% dehydration agent, 1% to 30% thickener, 1% to 30% emulsifier, 0.1% to 30% dispersant, 0.1% to 30% stabilizer, 0.1% to 20% vegetable oil, and the balance for the solvent.

[0048] For example, use 10% atrazine, 2% nicosulfuron, 4% mesotrione, 12% alkylphenol polyoxyethylene ether formaldehyde condensate, 10% alkylbenzenesulfonate, fatty alcohol polyoxyethylene 9% ether, 2% xanthan gum, and the balance of methyl oleate. The preparation method is: take 10% atrazine, 2% nicosulfuron, 4% mesotrione, alkylphenol polyoxygen Vinyl ether formaldehyde condensate 12%, alkylbenzene sulfonate 10%, fatty alcohol polyoxyethylene ether 9%, xanthan gum 2%, methyl oleate supplement 100%, stir evenly, shear for 1 ho...

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Abstract

The invention discloses a weeding composition. The weeding composition is characterized in that the weeding composition is an active composition, and the active composition is composed of nicosulfuron, mesotrione and atrazine; the weight ratio of the nicosulfuron to the mesotrione to the atrazine is (1-10):(1-20):(1-65); the invention also provides a post-emergence herbicide which comprises the active composition and an auxiliary composition, and the weight ratio of the active composition to the auxiliary composition is (3-95):(97-5); and according to the weeding composition, different mechanism characteristics of growth inhibition of nicosulfuron, conduction contact killing of mass and phloem of mesotrione and interference of atrazine on photosynthesis are utilized, so that the herbicide has an obvious synergistic interaction effect, the generation of drug resistance of weeds is effectively reduced, the herbicide controlling spectrum is expanded, the service time is prolonged, and the weeding composition not only can control gramineous weeds and broadleaf weeds, but also has a good control effect on some worst weeds.

Description

technical field [0001] The patent of the invention relates to the technical field of pesticide herbicides, in particular to a herbicide composition and a post-emergence herbicide containing the herbicide composition. Background technique [0002] Nicosulfuron is an organic compound with a molecular formula of C15H18N6O6S. It belongs to the sulfonylurea systemic herbicides. It can be absorbed by the stems, leaves and roots of weeds, and then conducts in the plants, causing growth stagnation and stems and leaves of sensitive plants. Green, gradually withered, generally 20-25 days to die, but it takes longer time for some perennial weeds under low temperature conditions. The efficacy of pesticide application is good before the 4-leaf stage after budding, and the efficacy of pesticide application decreases when the seedlings are large. The drug has pre-emergence herbicidal activity, but the activity is lower than that of post-emergence. [0003] Mesotrione (mesotrione) is an o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/36A01N41/10A01N43/70A01P13/00
CPCA01N41/10A01N43/70A01N47/36
Inventor 赵强李庆东肖涛白贺鑫梁中普聂运魏李永勤李登辉耿彪申芳芳袁文静裴建锋王震
Owner HENAN HANSI CROP PROTECTION
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