A kind of environment-friendly herbicide and preparation method thereof
A kind of herbicide and environmental protection technology, applied in the field of environmental protection herbicide and its preparation, can solve the problems of phytotoxicity, weed resistance, environmental pollution and other problems of subsequent crops, so as to reduce environmental damage, reduce drug resistance, inhibit The effect of growth
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[0023] Reference figure 1 , The preparation method of an environmentally friendly herbicide proposed by the present invention includes the following steps:
[0024] S1. Dry the chrysanthemum and peach roots, fragrant flowers, guayule, lilac and garlic to a moisture content of 10-15wt%, then pulverize, pass through a 150-180 mesh sieve, and add petroleum ether to mix evenly after drying. Perform shaking extraction, then suction filtration, and concentrate to obtain extract A;
[0025] S2. The walnut tree roots, cedar branches, reeds, alfalfa, mint and pepper are dried to a moisture content of 15-20wt%, then crushed, passed through a 200-220 mesh sieve, and then placed in water for ultrasonic vibration extraction and suction filtration , Concentrate to obtain extract B;
[0026] S3. After the extract A and the extract B are uniformly mixed, the allelopathy is obtained by evaporation under reduced pressure;
[0027] S4. Add allelopathic materials, flavourin, potassium lauryl sulfate, o...
Embodiment 1
[0030] The preparation method of an environmentally friendly herbicide provided by the present invention includes the following steps:
[0031] S1. 10 parts of chrysanthemum peach root, 65 parts of sagebrush, 45 parts of guayule, 30 parts of lilac flowers and 15 parts of garlic are dried by weight to a moisture content of 15% by weight, then crushed and passed through a 150 mesh sieve After drying, add petroleum ether and mix well, perform shaking extraction for 24h at a shaking speed of 180 rpm, and then suction filtration and concentration to obtain extract A;
[0032] S2. 18 parts by weight of walnut 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 to a moisture content of 20wt%, and then crushed to pass 200 meshes Sieve, and then place it in water to perform ultrasonic vibration extraction for 60 minutes, ultrasonic frequency is 100kHz, ultrasonic power is 800W, and oscillation s...
Embodiment 2
[0036] The preparation method of an environmentally friendly herbicide provided by the present invention includes the following steps:
[0037] S1. 18 parts by weight of chrysanthemum peach root, 50 parts of fragrant flower, 55 parts of guayule, 20 parts of lilac flower and 20 parts of garlic are dried to a moisture content of 10wt%, then crushed and passed through a 180 mesh sieve , After drying, add petroleum ether and mix well, perform shaking extraction for 18h at a shaking speed of 220 rpm, then suction filtration, and concentrate 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 by weight to a moisture content of 15wt%, and then crushed to pass 220 mesh Sieve, and then place in water to perform ultrasonic vibration extraction for 50 minutes, ultrasonic frequency is 150kHz, ultrasonic power is 700W, and vibration speed is 140rp...
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