Compound herbicide and preparation method thereof

A compound herbicide and evenly mixed technology, applied in herbicides and algicides, botanical equipment and methods, biocides, etc., can solve the problems of phytotoxicity, environmental pollution, and weed resistance of subsequent crops, etc. To achieve the effect of improving drug efficacy, increasing deposition amount, and improving wet spreading force

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

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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 benefi

Method used

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  • Compound herbicide and preparation method thereof
  • Compound herbicide and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Reference figure 1 , The preparation method of a compound herbicide proposed by the present invention includes the following steps:

[0026] S1. Dry parsley, mint, cedar branches, Chinese pepper and white clover to a moisture content of 20-25wt%, then pulverize, pass through a 100-120 mesh sieve, and dry to obtain the first material; add the first material to ethyl acetate The ester is evenly mixed, followed by ultrasonic vibration extraction, suction filtration, and concentration to obtain the first crude product;

[0027] S2. Wash garlic, fragrant flowers and guayule, sun-dried to a moisture content of 10-15wt%, then pulverize, pass through a 100-120 mesh sieve, then place in water to shake extraction, suction filtration, and concentrate to obtain the second Crude material

[0028] S3, mixing the first crude product and the second crude product uniformly and then performing reduced pressure evaporation to obtain an active material;

[0029] S4. The active material, tea sapo...

Example Embodiment

[0031] Example 1

[0032] The method for preparing a composite herbicide provided by the present invention includes the following steps:

[0033] S1. According to weight parts, 20 parts of parsley, 20 parts of mint, 50 parts of cedar branches, 35 parts of Chinese pepper and 20 parts of white clover are dried to a moisture content of 25wt%, then crushed, passed through a 100 mesh sieve, and dried to obtain the first Materials: The first material is added to ethyl acetate and mixed uniformly, followed by ultrasonic vibration extraction for 40 minutes, where the ultrasonic frequency is 0.4MHz, the ultrasonic power is 800W, the oscillation speed is 200rpm, suction filtration, and concentration to obtain the first crude product;

[0034] S2. Wash 18 parts of garlic, 20 parts of fragrant flower and 80 parts of guayule according to parts by weight, dry to a moisture content of 10wt%, then crush, pass through a 120-mesh sieve, and then place in water to shake for 12h, shake The speed is 150...

Example Embodiment

[0037] Example 2

[0038] The method for preparing a composite herbicide provided by the present invention includes the following steps:

[0039] S1. 30 parts of parsley, 10 parts of mint, 60 parts of cedar branches, 25 parts of Chinese pepper and 40 parts of white clover are dried by weight to a moisture content of 20wt%, then crushed, passed through a 120 mesh sieve, and dried to obtain the first Material: Add the first material to ethyl acetate and mix uniformly, then perform ultrasonic vibration extraction for 30 minutes, where the ultrasonic frequency is 0.6MHz, the ultrasonic power is 600W, the oscillation speed is 240rpm, suction filtration, and concentration to obtain the first crude product;

[0040] S2. Wash 10 parts of garlic, 30 parts of fragrant flowers and 60 parts of guayule according to parts by weight, and dry them to a moisture content of 15wt%, then pulverize, pass through a 100-mesh sieve, and then place in water to shake for 16 hours, shake The speed is 100rpm, ...

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Abstract

The invention discloses a preparation method of compound herbicide. The method comprises the steps that parsley, mint, branches of cedrus trew, Sichuan pepper and trifolium repens are dried in the sun to be with 20-25 wt% of moisture, smashing is conducted, 100-200 mesh sieving is conducted, and a first material is obtained through drying; the first material is added into ethyl acetate to be evenly mixed, extraction is conducted on the mixture through ultrasonic oscillating, suction filtration is conducted, and first crude extract is obtained through concentration; garlic, flower of Japanese glorybower and guayules are cleaned, dried in the sun and smashed, 100-200 mesh sieving is conducted, the mixture is put into water for vibrating extraction, suction filtration is conducted, and second crude extract is obtained through the concentration; the first crude extract and the second crude extract are evenly mixed for decompress evaporation to obtain an active material; the active material, tea saponin, camphor oil, penoxsulam, emulsifier, a dispersing agent, thickener, a structure modifier, an antioxidant, preservative and cottonseed oil are evenly mixed to obtain the compound herbicide. The invention further discloses the compound herbicide.

Description

technical field [0001] The invention relates to the technical field of herbicides, in particular to a compound 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 particularly important to ch...

Claims

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Application Information

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IPC IPC(8): A01N65/42A01P13/00A01N43/90A01N43/16
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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