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Suspension used for preventing and controlling rust rot, and preparation method thereof

A suspending agent, rust and rot technology, applied in the field of pesticides, can solve the problems of high cost chemical medicine, harsh storage environment, single effect, etc., and achieve the effect of high concentration, convenient storage and transportation, and low cost

Active Publication Date: 2016-08-10
BEIJING UNION UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is not easy to be accepted by the market due to its single effect, harsh storage environment, higher cost than chemical drugs, and slow action.

Method used

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  • Suspension used for preventing and controlling rust rot, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Dissolve 52.5g of berberine in 600mL of water, add 30g of sodium methylene dinaphthalene sulfonate, heat and stir in a water bath at 45°C until most of the precipitate dissolves, grind in a grinder for 2 hours, then add 30ml of glycerol, Baume degree 10ml of 25% tea saponin solution, 15ml of Tween 80, stir evenly; let cool to room temperature, add 1% xanthan gum solution and settle to 1L to obtain berberine aqueous suspension, its suspension rate, heat Stability, low temperature stability, pH are all qualified.

Embodiment 2

[0052] Dissolve 47.5g of berberine in 600mL of water, add 20g of sodium methylene dinaphthalenesulfonate, heat and stir in a water bath at 50°C until most of the precipitate dissolves, grind in a grinder for 2 hours, add 30ml of ethylene glycol, Baume 20ml of 25% tea saponin solution, 20ml of Tween 80, stir evenly; let cool to room temperature, add 1% xanthan gum solution and settle to 1L to obtain berberine aqueous suspension, its suspension rate, heat Stability, low temperature stability, pH are all qualified.

Embodiment 3

[0054] Dissolve 63.5g of berberine in 600mL of water, add 25g of sodium methylene dinaphthalene sulfonate, heat and stir in a water bath at 55°C until most of the precipitate dissolves, grind in a grinder for 2 hours, add 40ml of glycerol, Baume degree 25ml of 25% tea saponin solution, 25ml of Tween 80, stir evenly; let cool to room temperature, add 1% xanthan gum solution and settle to 1L to obtain berberine aqueous suspension, its suspension rate, heat Stability, low temperature stability, pH are all qualified.

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Abstract

The invention discloses a suspension used for preventing and controlling rust rot, and a preparation method thereof. The suspension contains berberine as a main effective component, and is obtained through mixing berberine with a wetting dispersant, an antifreeze agent and an emulsifier, and the content of berberine is 4-10% of the total weight of the suspension. The preparation method of the suspension comprises the following steps: 1, dissolving berberine in water; 2, adding 2-10% of the wetting dispersant, and stirring in 40-60DEG C water bath until most of precipitate is dissolved; 3, carrying out sand milling through a sand mill; and 4, adding 3-5% of the antifreeze agent, 1-10% of a synergist and 1-5% of the emulsifier, uniformly stirring, cooling the obtained solution to room temperature, and adding a thickener to a constant volume in order to make the final content of the thickener reach 0.1-0.5%.

Description

technical field [0001] The invention belongs to the technical field of pesticides and relates to an agricultural fungicide, in particular to a suspending agent for preventing and treating rust and rot and a preparation method thereof. Background technique [0002] Rust rot (Ramularia.SP.Panax ginseng) is a major soil-borne disease that infects American ginseng and roots of Panax ginseng. Its pathogenic factors are complex, mainly caused by mixed bacteria and fungi. The disease in continuous cropping land was more severe than that in rotation cropping land and newly planted land, and the longer the continuous cropping land was, the more severe the disease was. It not only affects crop yield and quality, but also hinders rooting of old crop soil. The prevention and control of rust and rot mainly uses chemical pesticides such as carbendazim and tuzet, which not only endanger the environment, but also their residues enter the human body through plants, causing poisonous damage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/04A01N43/90A01N43/16A01P3/00
CPCA01N25/04A01N43/16A01N43/90A01N2300/00
Inventor 李可意葛喜珍李秀慧张玉娇谢彩鹏林倩
Owner BEIJING UNION UNIVERSITY
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