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Herbicide used for stevia rebaudiana plantation and preparation method thereof

A technology of stevia and herbicides, which is applied in the field of herbicides for planting stevia and its preparation, can solve the problems of losing herbicide effect, destroying the balance of the surrounding ecological environment, and health threats, and achieves convenient operation, simple preparation method, and inhibition of teething Effect

Inactive Publication Date: 2017-05-17
MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the abuse of herbicides made of chemical compounds, weeds have become resistant to chemical herbicides and lost their weeding effect; The residue or application process poses a threat to human health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment relates to a herbicide for stevia rebaudiana planting and its preparation method;

[0026] The herbicide is composed of the following components: 20 parts of foxtail, 15 parts of aconite, 15 parts of chamaejasma, 20 parts of mugwort, 12 parts of ghost needle grass, 8 parts of lacquer, 12 parts of hibiscus bark, bitter 8 parts of Piteng, 5 parts of Tripterygium wilfordii, 5 parts of Sophora flavescens, and 8 parts of rhubarb.

[0027] The preparation steps of described herbicide are as follows:

[0028] (1) Weigh each component according to the proportion, pulverize with a pulverizer until the particle size is 100 mesh, mix evenly, and set aside;

[0029] (2) Wrap the mixed components with filter paper and add them to the Soxhlet extractor, add ethanol to the flask connected to the Soxhlet extractor, and mix the coarse powder: the amount of ethanol is 5g: 100mL, at 78°C, ultrasonic radiation is Under the condition of 90W, heat and reflux for 2h, take ou...

Embodiment 2

[0034] This embodiment relates to a herbicide for stevia rebaudiana planting and its preparation method;

[0035] The herbicide is composed of the following components: 10 parts of foxtail, 10 parts of aconitum, 10 parts of chamaejasma, 15 parts of mugwort, 10 parts of ghost needle grass, 5 parts of lacquer, 10 parts of hibiscus bark, bitter 5 parts of Piteng, 3 parts of Tripterygium wilfordii, 3 parts of Sophora flavescens, and 5 parts of rhubarb.

[0036] The preparation steps of described herbicide are as follows:

[0037] (1) Weigh each component separately according to the proportion, pulverize with a pulverizer until the particle size is 50 mesh, mix evenly, and set aside;

[0038] (2) Wrap the mixed components with filter paper and add them to the Soxhlet extractor, add ethanol to the flask connected to the Soxhlet extractor, and mix the coarse powder: the amount of ethanol is 5g: 100mL, at 80°C, ultrasonic radiation is Under the condition of 100W, heat to reflux for ...

Embodiment 3

[0043] This embodiment relates to a herbicide for stevia rebaudiana planting and its preparation method;

[0044] The herbicide is composed of the following components: 30 parts of foxtail, 20 parts of aconite, 20 parts of chamaejasma, 30 parts of mugwort, 15 parts of ghost needle grass, 10 parts of lacquer, 15 parts of hibiscus bark, bitter 10 parts of Piteng, 8 parts of Tripterygium wilfordii, 8 parts of Sophora flavescens, and 10 parts of rhubarb.

[0045] The preparation steps of described herbicide are as follows:

[0046] (1) Weigh each component according to the proportion, pulverize with a pulverizer until the particle size is 100 mesh, mix evenly, and set aside;

[0047] (2) Wrap the mixed components with filter paper and add them to the Soxhlet extractor, add ethanol to the flask connected to the Soxhlet extractor, and mix the coarse powder: the amount of ethanol is 8g: 120mL, at 75°C, ultrasonic radiation is Under the condition of 90W, heat and reflux for 2h, take...

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Abstract

The invention relates to the technical field of agriculture plantation, and concretely relates to a herbicide used for stevia rebaudiana plantation and a preparation method thereof. The herbicide comprises the following components: Setaria viridis, aconitum sinomontanum nakai, euphorbia, artemisia argyi, bidens pilosa, euphorbia helioscopia, golden larch bark, angled bittersweet, tripterygium wilfordii, radix sophorae flavescentis and rheum officinale; the preparation method comprises the following steps: respectively weighing the components, crushing the components, uniformly mixing the components; adding the components in a soxhlet extractor, adding ethanol, performing ultrasonic-assisted extraction, taking the mixing components to obtain an extract; placing the mixing components in a flask, adding water, performing ultrasonic-assisted heat backflow, filtering the material while hot, repetitively operating for 2 times; merging the obtained extract, a filtrate and a washing lotion, and concentrating the materials to obtain the target product herbicide. The herbicide used for stevia rebaudiana plantation can effectively remove the weeds, and can inhibit germination of weed seeds, and the preparation method is simple, operation is convenient, and the method is suitable for popularization and application.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a herbicide for planting stevia rebaudiana and a preparation method thereof. Background technique [0002] Stevia is a perennial herbaceous plant of Compositae, native to subtropical South America. The roots, stems and leaves of Stevia rebaudiana contain steviol glycosides. Stevioside has the characteristics of high sweetness (200-300 times that of sucrose), low calorie (only 1 / 300 of sucrose), and can increase blood sugar, lower blood pressure, and promote metabolism. Heart disease, dental caries, etc. have a certain auxiliary effect, so it has increasingly attracted people's attention and attention, and has become the "third sugar source" after sucrose and synthetic sugar. [0003] The planting area of ​​stevia is also expanding, and the supply exceeds the demand. Stevia products are widely used in medicine and food additive industries. At present, stevia leav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/44A01P13/00
CPCA01N65/00A01N65/44A01N2300/00
Inventor 贾德军
Owner MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
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