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Botanical fungicide for controlling potato ring rot and preparation method thereof

A botanical fungicide and ring rot technology, applied in botanical equipment and methods, plant growth regulators, biocides, etc., to achieve the effects of strong stability, serious damage control, and no environmental pollution

Inactive Publication Date: 2012-10-03
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are no reports of botanical fungicides for the control of potato ring rot

Method used

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  • Botanical fungicide for controlling potato ring rot and preparation method thereof
  • Botanical fungicide for controlling potato ring rot and preparation method thereof
  • Botanical fungicide for controlling potato ring rot and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) First wash the kelp with clean water, dry and crush it, and pass it through a 100-mesh sieve;

[0023] (2) Add 100 g of sieved kelp powder to 500 mL of absolute ethanol, reflux extraction at 40°C for 2 hours, and concentrate under reduced pressure at 40°C to remove the ethanol solvent to obtain kelp extract extract.

Embodiment 2

[0025] (1) First wash the kelp with clean water, dry and crush it, and pass it through a 100-mesh sieve;

[0026] (2) Add 100 g of sieved kelp powder to 4000 mL of absolute ethanol, reflux extraction at 90°C for 14 hours, and concentrate under reduced pressure at 50°C to remove the ethanol solvent to obtain kelp extract extract.

Embodiment 3

[0028] (1) First wash the kelp with clean water, dry and crush it, and pass it through a 100-mesh sieve;

[0029] (2) Add 100 g of the sieved kelp powder to 2500 mL of absolute ethanol, reflux extraction at 70°C for 6 hours, and concentrate under reduced pressure at 60°C to remove the ethanol solvent to obtain kelp extract extract.

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Abstract

The invention provides a botanical fungicide for controlling potato ring rot. The botanical fungicide comprises a main raw material which is a sea-tangle extract, a solvent which is N, N-dimethyl formamide, an emulsifier which is tween-80 and a diluent which is water. A preparation method of the botanical fungicide comprises first using ethanol to flow back to extract sea-tangle powder, concentrating to remove the ethanol solvent and obtain the sea-tangle extract, and enabling the sea-tangle extract to mixed with N, N-dimethyl formamide, tween-80 and the water in proportion so that the botanical fungicide is obtained. The botanical fungicide has good effect on controlling the potato ring rot, does not pollute the soil, underground water sources and agricultural products, has the effect of green manure, can improve physicochemical properties of the soil, and is an ideal botanical pesticide.

Description

technical field [0001] The invention relates to a botanical fungicide, in particular to a natural botanical fungicide for preventing and treating potato ring rot using kelp as a main raw material and a preparation method thereof. Background technique [0002] Potato ring rot, also known as ring rot, commonly known as ring rot and yellow eye circle, is a worldwide vascular disease caused by bacteria. In my country, the disease was first discovered in Heilongjiang in the 1950s. Later, due to the transportation of seed potatoes, it was successively spread to Jilin, Liaoning, Inner Mongolia, Gansu, Qinghai, Ningxia, Hebei, Beijing, Shanxi, Shaanxi, Shandong, Zhejiang, Shanghai, Guangxi and other places. At present, it has spread all over the country's potato-producing areas. After potatoes are damaged by ring rot, the plants often cause severe wilting or even death, which has a great impact on yield, and the land with severe disease can reduce yield by 30% to 60%. During stor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/03A01P1/00
Inventor 蔡瑾谢树莲冯佳李博王飞鹏
Owner SHANXI UNIV
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