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Nicosulfuron and fluroxypyr-containing herbicidal composition

A herbicidal composition, the technology of nicosulfuron, is applied in the directions of herbicides, algaecides, biocides, animal repellents, etc., which can solve the problems of poor control effect of grass weeds and the like, and reduce the application dosage. , The effect of high weeding efficiency

Inactive Publication Date: 2011-01-12
尹小根
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compound (A) nicosulfuron can control both broad-leaved weeds and gramineous weeds in cornfields, and compound (B) fluroxypyr has excellent control effect on broad-leaved weeds in cornfields, but it is effective against grassy weeds Grass is not effective
At the same time, there is no report on the mixing of nicosulfuron and fluroxypyr in an appropriate ratio to control weeds in cornfields

Method used

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  • Nicosulfuron and fluroxypyr-containing herbicidal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Preparation of wettable powder.

[0026] 4% active ingredient (A) with 16% active ingredient (B), 2% sodium lauryl sulfate as wetting agent, 5% NNO as dispersant, 5% lignin as dispersant Calcium sulfonate, 5% white carbon black and other inert fillers are thoroughly mixed together and ultrafinely pulverized to obtain a wettable powder.

Embodiment 2

[0027] Example 2: Preparation of water-dispersible granules.

[0028] 20% active ingredient (A) with 40% active ingredient (B), 5% carboxylate as wetting agent, 5% NNO as dispersant, 5% lignosulfonic acid as dispersant Calcium and other inert fillers are thoroughly mixed together and ultrafinely pulverized, then an appropriate amount of water and binder is added to the mixture, and the water-dispersible granules can be obtained after fluidized bed granulation or extrusion granulation and drying.

Embodiment 3

[0029] Embodiment 3: Dispersible oil suspension concentrate

[0030] 5% effective component (A) and 15% effective component (B), 10% carboxylate as a dispersant, 2% organic bentonite as a thickener and vegetable oil can be ground together to obtain a dispersible oil suspension.

[0031] Biological example:

[0032] Example 1:

[0033] The control effect of nicosulfuron and fluroxypyr on weeds in cornfield is shown in the table

[0034] Location: Xinyi, Jiangsu Province Investigation period: 20 days after taking the medicine Time: 2010

[0035]

[0036] Conclusion: The actual control effect of nicosulfuron and fluroxypyr mixed use is greater than the theoretical control effect, indicating that the mixed use of nicosulfuron and fluroxypyr has a synergistic effect.

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Abstract

The invention relates to a nicosulfuron and fluroxypyr-containing herbicidal composition as well as a preparation method and application thereof. The herbicidal composition consists of a compound (A) of nicosulfuron and a compound (B) of fluroxypyr. The herbicidal composition is mixed according to a proper proportion and can be processed into normal pesticide formulations, such as wettable powder, suspending agents, water dispersible granules, and the like through modern pesticide preparation processing techniques and used for preventing and killing annual weeds and perennial weeds, such as cockspur grass, crab grass, goosegrass herb, green bristlegrass, amaranthus retroflexus, purslane, abutilon, bindweed, cephalanoplos segetum, chicory, setariaglauca, eriochloa villosa, black nightshade, herba elsholtziae, xanthium sibiricum Patrin, dayflower, rorippa palustris, penny cress, meadow pine, Artemisisa L, circium japonicum, wild oats in corn fields. The preventing effect of the herbicidal composition is remarkably higher than that of the single compound (A) or the single compound (B), and the application dosage of each active substance is greatly reduced. The invention has not only ecological significance but also very important environmentally-friendly significance at the same time.

Description

technical field [0001] The present invention relates to herbicidal compositions with improved properties, in particular to herbicidal compositions containing nicosulfuron and fluroxypyr and their use. Background technique [0002] The general name of the compound (A) is nicosulfuron, and the chemical name is 2-(4,6-dimethoxypyrimidin-2-ylcarbamoylaminosulfonyl)-N,N-dimethylnicotinamide. [0003] The English name of Nicosulfuron: nicosulfuron (ISO-E draft, BSI, ANSI). CA Registration Number: 111991-09-4. The development unit is Ishihara Sangyo Co., Ltd. of Japan, which has obtained the patent US4789393. Nicosulfuron dispersible oil suspension concentrate has been registered in China in 1993, and its trade name is Yu Nong Le. [0004] Nicosulfuron is a systemic herbicide, which can be absorbed by the stems, leaves and roots of plants and conduct rapidly. Amino acid synthesis prevents cell division and causes sensitive plants to stop growing. The symptoms of weed damage ar...

Claims

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Application Information

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IPC IPC(8): A01N47/36A01N43/40A01P13/00
Inventor 尹小根
Owner 尹小根
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