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Dispersible oil suspension of composite herbicide composed of flucarbazone-sodium and clodinafop-propargyl and preparation method thereof

A compound herbicide, flucarbasulfuron-methyl technology, applied in the direction of herbicides and algicides, botanical equipment and methods, biocides, etc., can solve the high cost of flucarbasulfuron-methyl weeding, poor control effect of malignant weeds, etc. problems, to achieve the effect of improving crop quality and safety, reducing the number of medications, and reducing costs

Inactive Publication Date: 2016-05-04
ANHUI MEILAND AGRI DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The cost of weeding with flucarbasulfuron alone is high, and the control effect on malignant weeds is poor

Method used

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  • Dispersible oil suspension of composite herbicide composed of flucarbazone-sodium and clodinafop-propargyl and preparation method thereof
  • Dispersible oil suspension of composite herbicide composed of flucarbazone-sodium and clodinafop-propargyl and preparation method thereof
  • Dispersible oil suspension of composite herbicide composed of flucarbazone-sodium and clodinafop-propargyl and preparation method thereof

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preparation example Construction

[0021] The invention discloses a dispersible oil suspension concentrate of flucarbasulfuron-methyl and clodinafop-propargyl compound herbicide and a preparation method thereof, which comprises the following raw materials: flucarbasulfuron-methyl and clodinafop-propargyl.

[0022] Other names, structural formulas and basic physical and chemical parameters of flucarbasulfuron and clodinafop-propargyl are as follows:

[0023] (1), Flusasulfuron-methyl

[0024] ISO common name: flucarbazone-Na

[0025] CA registration number: 145026-88-6

[0026] Chemical name: 1H-1,2,4-triazole-1-carbamoyl-4,5-2H-3-methoxy-4-methyl-5-O-N-[[2-(trifluoromethoxy ) Benzene]sulfonyl]-sodium salt

[0027] Molecular formula: C 12 h 11 f 3 N 4 o 6 S

[0028] Molecular mass: 396.3

[0029] Biological activity: weed control

[0030] Appearance: Odorless, colorless crystalline powder

[0031] Melting point: 200°C

[0032] Density (20°C): 1.59g / cm 3

[0033] Solubility (20°C): n-heptane250, ac...

Embodiment 1

[0050] Step 1: Pump all the raw and auxiliary materials into the preparation tank, mix and stir evenly, first grind through the colloid mill, then finely grind through the sand mill, filter, and control the suspension rate to ≥90%, and the pass rate of the 75μm test sieve to ≥98%.

[0051] Step 2: After soaking and accelerating germination, wild oat seeds are sown on a cross-sectional area of ​​0.25m filled with soil 2 100 grains were sown in each pot, and the wild oats were cultivated in the greenhouse until the stage of 1 leaf and 1 heart was treated. According to Table 1, the treatment dose was designed to prepare the liquid medicine. The preparation method: first dissolve flucarbasulfuron-methyl and clodinafop-propargyl with acetone, and then dilute with 0.1% Tween-80 aqueous solution. Use the POTTER precision laboratory spray tower to spray the liquid medicine, the spray liquid volume is 50ml per treatment, and keep the soil moist after spraying. Each treatment was repea...

Embodiment 2

[0059]Look at the seeds of Mai Niang after soaking and germination, then sow on-demand in the cross-sectional area of ​​0.25m filled with soil 2 In the basin, all the other are with embodiment 1. See Table 3 for the results of the joint action determination of flucarbasulfuron-methyl and clodinafop-propargyl on the combination of Amygonia (after 20 days of drug administration).

[0060] Table 3 Determination of the combined effect of flucarbasulfuron-methyl and clodinafop-propargyl dual compound on kannada (20 days after the drug)

[0061]

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Abstract

The invention relates to the technical field of combination of pesticides, specifically to a dispersible oil suspension of a composite herbicide composed of flucarbazone-sodium and clodinafop-propargyl and a preparation method thereof. The composite herbicide is prepared from, by mass, 6% of flucarbazone-sodium and 10% of clodinafop-propargyl, and the total content of the active ingredients is 16%. The preparation method for the dispersible oil suspension of the composite herbicide comprises the following steps: pumping all the raw and auxiliary materials into a preparation kettle for uniform mixing under stirring; subjecting a mixture obtained in the previous step to primary grinding by a colloid mill at first and then to fine grinding with a sand milling machine; then carrying out filtering and controlling a suspension rate of no less than 90% and 75-[mu]m-test sieve passing rate of no less than 98%; and after analysis results of samples are qualified, successively carrying out metering, packaging and warehousing. According to the invention, flucarbazone-sodium and clodinafop-propargyl are compounded, so weeds are effectively prevented from generating resistance, a plurality of weeds are simultaneously eliminated through application of the composite herbicide once, application frequency of the herbicide is reduced, labor force is saved, pollution to a farmland environment is mitigated, and quality safety of crops is improved.

Description

technical field [0001] The invention relates to the technical field of weed-killing pesticides, in particular to a dispersible oil suspension of flucarbasulfuron-methyl and clodinafop-propargyl compound herbicide and a preparation method thereof. technical background [0002] Fluasulfuron-methyl is a sulfonylurea systemic high-efficiency wheat field herbicide, which has obvious control effects on gramineous weeds such as wild oats, brome, and alopecia and a variety of dicotyledonous weeds. Its imported name is Biaohu, which is a brand-new compound. Its active ingredients can be absorbed by the roots, stems and leaves of weeds. By inhibiting the activity of acetolactate synthase in weeds, it destroys the normal physiological and biochemical metabolism of weeds to play a role in weeding. active. Biaohu can effectively control most grass weeds in wheat fields, and can also effectively control some broad-leaved weeds. Biaohu can be quickly metabolized in wheat and has excellen...

Claims

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Application Information

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IPC IPC(8): A01N47/38A01N43/40A01N25/04A01P13/00
CPCA01N47/38A01N25/04A01N43/40
Inventor 徐长才毛堂富
Owner ANHUI MEILAND AGRI DEV
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