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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
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  • 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

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

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preparation example Construction

[0025] refer to figure 1 , the preparation method of a kind of compound herbicide that the present invention proposes, comprises the steps:

[0026] S1. Dry parsley, mint, cedar branches, Chinese prickly ash and white clover until the moisture content is 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 Mix evenly with the ester, then perform ultrasonic vibration extraction, filter with suction, and concentrate to obtain the first crude extract;

[0027] S2. Wash the garlic, calendula and guayule, dry in the sun until the water content is 10-15wt%, then pulverize, pass through a 100-120 mesh sieve, then shake and extract in water, suction filter, and concentrate to obtain the second crude extract;

[0028] S3. Mix the first crude extract and the second crude extract evenly, and then evaporate under reduced pressure to obtain the active material;

[0029] S4. Mix the active material, tea...

Embodiment 1

[0032] A kind of preparation method of compound herbicide that the present invention proposes, comprises the steps:

[0033] S1, dry 20 parts of parsley, 20 parts of mint, 50 parts of cedar branches, 35 parts of Chinese prickly ash and 20 parts of white clover in parts by weight until the moisture content is 25wt%, then pulverize, pass through a 100-mesh sieve, and dry to obtain the first Materials: the first material was added to ethyl acetate and mixed evenly, followed by ultrasonic vibration extraction for 40 minutes, wherein the ultrasonic frequency was 0.4 MHz, the ultrasonic power was 800 W, the oscillation speed was 200 rpm, suction filtration, and concentration to obtain the first crude extract;

[0034] S2. Wash 18 parts of garlic, 20 parts of calendula and 80 parts of guayule by weight, dry in the sun until the water content is 10wt%, then pulverize, pass through a 120-mesh sieve, and place in water for oscillating extraction for 12 hours, oscillating The speed is 15...

Embodiment 2

[0038] A kind of preparation method of compound herbicide that the present invention proposes, comprises the steps:

[0039] S1, 30 parts of parsley, 10 parts of peppermint, 60 parts of cedar branches, 25 parts of Chinese prickly ash and 40 parts of white clover are dried in the sun until the water content is 20wt% by weight, then pulverized, passed through a 120 mesh sieve, and dried to obtain the first Materials: the first material was added to ethyl acetate and mixed evenly, followed by ultrasonic vibration extraction for 30 minutes, wherein the ultrasonic frequency was 0.6 MHz, the ultrasonic power was 600 W, the oscillation speed was 240 rpm, suction filtration, and concentration to obtain the first crude extract;

[0040] S2. Wash 10 parts of garlic, 30 parts of calendula and 60 parts of guayule by weight, dry in the sun until the moisture content is 15wt%, then pulverize, pass through a 100-mesh sieve, and then place in water to vibrate for extraction for 16 hours, vibra...

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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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