Environment-friendly herbicide and preparation method thereof

A herbicide and environmental protection technology, applied in the field of environmental protection herbicide and its preparation, can solve the problems of phytotoxicity, environmental pollution, weed resistance and the like of subsequent crops, and achieves reduction of environmental damage, reduction of drug resistance, inhibition of effect of growth

Active Publication Date: 2015-11-11
安徽省圣丹生物化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current method of controlling weeds is mainly chemical weeding, which has the advantages of high efficiency, quick effect, convenient operation, wide adaptability and significant economic benefits, but the biggest disadvantage is that it can cause environmental pollution, making crops or non-target organisms and subsequent crops cause phytotoxicity, and can also make weeds resistant to pesticides

Method used

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  • Environment-friendly herbicide and preparation method thereof
  • Environment-friendly herbicide and preparation method thereof

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preparation example Construction

[0023] refer to figure 1 , the preparation method of a kind of environment-friendly herbicide that the present invention proposes, comprises the steps:

[0024] S1. Dried chrysanthemum peach root, calendula, guayule, lilac and garlic until the water content is 10-15wt%, then pulverized, passed through a 150-180 mesh sieve, added petroleum ether after drying and mixed evenly, Vibration extraction is carried out, followed by suction filtration and concentration to obtain extract A;

[0025] S2. Dried walnut tree roots, cedar branches, reeds, alfalfa, mint, and pepper until the water content is 15-20wt%, then crushed, passed through a 200-220 mesh sieve, and then placed in water for ultrasonic vibration extraction and suction filtration , concentrated to obtain extract B;

[0026] S3. After the extract A and the extract B are uniformly mixed, evaporate under reduced pressure to obtain the allelopathic material;

[0027] S4. Add allelopathic materials, vitexin, potassium lauryl...

Embodiment 1

[0030] A kind of preparation method of environment-friendly herbicide that the present invention proposes, comprises the steps:

[0031] S1, 10 parts of chrysanthemum peach root, 65 parts of calendula, 45 parts of guayule, 30 parts of lilac and 15 parts of garlic are dried to a moisture content of 15wt% by weight, then pulverized and passed through a 150-mesh sieve , after drying, add petroleum ether and mix evenly, carry out vibration extraction for 24 hours, the vibration speed is 180rpm, then suction filtration, concentration to obtain extract A;

[0032] S2, by weight, 18 parts of walnut tree roots, 20 parts of cedar branches, 60 parts of reeds, 30 parts of alfalfa, 28 parts of cypress branches and leaves, and 10 parts of pepper are dried until the moisture content is 20wt%, then crushed, and passed through 200 mesh Sieve, then place in water for ultrasonic vibration extraction for 60min, the ultrasonic frequency is 100kHz, the ultrasonic power is 800W, the oscillation spe...

Embodiment 2

[0036] A kind of preparation method of environment-friendly herbicide that the present invention proposes, comprises the steps:

[0037] S1, 18 parts of chrysanthemum peach tree roots, 50 parts of calendula, 55 parts of guayule, 20 parts of lilac and 20 parts of garlic are dried to a moisture content of 10wt% by weight, then pulverized and passed through a 180-mesh sieve , after drying, add petroleum ether and mix evenly, carry out vibration extraction for 18h, the vibration speed is 220rpm, then suction filtration, concentration to obtain extract A;

[0038] S2, 12 parts of walnut roots, 25 parts of cedar branches, 50 parts of reeds, 40 parts of alfalfa, 20 parts of cypress branches and leaves, and 16 parts of pepper are dried to a moisture content of 15wt% by weight, then pulverized, and passed through 220 mesh Sieve, then place in water for ultrasonic oscillation extraction for 50min, the ultrasonic frequency is 150kHz, the ultrasonic power is 700W, the oscillation speed is...

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Abstract

The invention discloses a preparation method of an environment-friendly herbicide. The preparation method comprises the steps that chrysanthemum and peach tree roots, ixora chinensis, guayule, lilac and garlic are dried till the moisture content is 10-15wt%, smashed, screened by a screen with 150-180 meshes and then added into petroleum ether after being dried for even mixing, vibrating extraction is carried out, then suction filtration is carried out, and an extract A is obtained after concentration; walnut tree roots, cedar branches, reeds, alfalfa, mentha haplocalyx and pepper are dried in the sun till the moisture content is 15-20wt%, smashed, screened by a screen with 200-220 meshes, placed in water for ultrasonic oscillation extraction and suction filtration and then concentrated, and therefore an extract B is obtained; the extract A and the extract B are evenly mixed, then pressure reduction vaporization is carried out, and allelopathic materials are obtained; the allelopathic materials, vitexicar-pin, dodecyl potassium sulphate, nekal, white carbon black, an emulsifying agent, an antioxidant and a preservative are added into water to be resuspended, and therefore the environment-friendly herbicide is obtained. The invention further discloses the environment-friendly herbicide.

Description

technical field [0001] The invention relates to the technical field of herbicides, in particular to an environmentally friendly herbicide and a preparation method thereof. Background technique [0002] Weeds are one of the three pests in agricultural production, which can compete with crops for growth space, thereby affecting the normal growth of crops, reducing yield, and causing huge losses to agricultural production. In our country, the crop yield reduction caused by weeds reaches more than 10% every year. [0003] The current method of controlling weeds is mainly chemical weeding, which has the advantages of high efficiency, quick effect, convenient operation, wide adaptability and significant economic benefits, but the biggest disadvantage is that it can cause environmental pollution, making crops or non-target organisms and subsequent crops Phytotoxicity can also cause weeds to develop resistance. Therefore, under the premise of ecological security, it is particularl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/44A01N65/42A01P13/00A01N43/16
Inventor 钱同兰陈今如郑雷王朝文
Owner 安徽省圣丹生物化工有限公司
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