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A kind of herbicidal composition comprising metafentrazone, fenzafen and clofensulfen

A herbicidal composition, the technology of isopropoxyfen, is applied in the directions of herbicides, algicides, biocides, animal repellents, etc. Dosage, environmental pollution, etc.

Active Publication Date: 2021-10-22
PLANT PROTECTION & QUALITY & SAFETY OF AGRI PRODS INST ANHUI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Long-term single use of herbicides is likely to cause serious resistance to weeds, thereby increasing the dosage of herbicides and causing pollution to the environment. It is a research and development hotspot to find a synergistic composition that can improve the weeding effect and reduce the dosage of active ingredients.
In the prior art, there is no report on the combined use of metrafentrazone, profenfen and mesitsulam

Method used

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  • A kind of herbicidal composition comprising metafentrazone, fenzafen and clofensulfen
  • A kind of herbicidal composition comprising metafentrazone, fenzafen and clofensulfen
  • A kind of herbicidal composition comprising metafentrazone, fenzafen and clofensulfen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] 57% Metrafentrazone · Isopropyl Fenzafen · Clossulam Wettable Powder

[0019] Metafentrazone 50%, Propoxyfen 6%, Chlorester Sulfonate 1%, Calcium Lignosulfonate 6%, NNO 6%, Nongru 1601# 4%, White Carbon Black 3%, Kaolin Supplement 100%.

Embodiment 2

[0021] 52% Metrafentrazone·Isopropyl Fenfen·Cloxazone Water Dispersible Granules

[0022] Metrafentrazone 40%, Propoxyfen 10%, Clofenac Sulam 2%, Opening Powder 5%, Calcium Lignosulfonate 7%, NNO 5%, Urea 4%, Polyvinyl Alcohol 3% , Silica 3%, kaolin make up 100%.

[0023] Biological Example 1: Indoor Determination of Barnyard Grass Compounded with Metrafentrazone, Isopropyl Fenzafen and Meclosulfentrazone

[0024] Weeds tested: barnyardgrass (Institute of Plant Protection and Agricultural Product Quality and Safety, Anhui Academy of Agricultural Sciences)

[0025] Test method: Accurately weigh a certain amount of test agent, add a small amount of N,N-dimethylformamide to dissolve it, and make mother liquor with 0.1% Tween 80 aqueous solution, and dilute with 0.1% Tween 80 aqueous solution for the preparation of the medicinal solution. Use a plastic nutrient bowl with a diameter of 9 cm, which is filled with air-dried surface soil collected from the farmland, keep the soil mo...

Embodiment 3

[0037] Biological Example 3: Determination of the Field Drug Efficacy of the Combination of Metrafentrazone, Profentrafen and Clossulam on Weeds in Rapeseed Fields

[0038] Experimental crops: Rapeseed field weeds: barnyardgrass, chrysanthemum, commelina, chickweed.

[0039] Application method: set up 1 chemical treatment, 2 positive controls, 1 blank control, repeat 3 times; each plot has an area of ​​50m2, arranged randomly. Spray the stems and leaves with a sprayer. 21 days after spraying, the fresh weight control effect of weeds was investigated.

[0040] Analysis of the results: The compound composition of mezafen, profen-fen and clofensulfame has a good control effect on rapeseed field weeds barnyardgrass, chrysanthemum, commelina and chickweed.

[0041] Table 3 Compound preparations control effect on weeds in rapeseed field

[0042]

[0043] Remarks: 56% Metrafentrazone·Isopropyl Fenfen wettable powder formulation: Metrafentrazone 50%, Isopropyl Fenfen 6%, Calcium...

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Abstract

The present invention provides a herbicidal composition comprising mezafen, propenofen and clofensulfen, the active ingredient comprises memetrafen, mefenflufen and meclosulam, and pyrazole The mass ratio of grass amine, fenflufen and chlorsulfame is 1‑30:0.1‑10:0.1‑10. The herbicidal combination of the invention can be used for controlling annual weeds in rapeseed fields, and has significant synergistic effect.

Description

technical field [0001] The invention belongs to the field of herbicides, and in particular relates to a herbicidal composition comprising metafentrazone, fenzafen and clofensulfen and an application thereof. Background technique [0002] Mezafenamide is an amide selective herbicide, which can effectively control annual gramineous weeds and some broad-leaved weeds in rapeseed fields. Propoxyfen is a herbicide for stem and leaf treatment in rapeseed fields. It can effectively control annual gramineous weeds and some broad-leaved weeds, such as: kansui, Japanese kansia, chickweed, cow chickweed, Buzzweed, etc. Chlorester-sulam is a sulfonamide herbicide, which is absorbed by weed leaves and roots, accumulates at growth points, inhibits acetolactate synthase (ALS), affects protein synthesis, and causes weeds to stop growing and die. It has a good control effect on the control of broad-leaved weeds Commelina, Polygonum rubrum, and ragweed, and has a strong inhibitory effect on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/56A01N43/90A01N43/54A01P13/00
CPCA01N43/54A01N43/56A01N43/90
Inventor 周凤艳张勇张昊韩云静武健
Owner PLANT PROTECTION & QUALITY & SAFETY OF AGRI PRODS INST ANHUI ACAD OF AGRI SCI
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