Pesticide for soybeans and preparation method of pesticide
An insecticide and soybean technology, applied in the field of soybean insecticide and its preparation, can solve the problems of non-selectivity, accumulation, and difficulty in degradation of chemical pesticides, and achieve insecticidal effects that are harmless to humans and animals, and insecticidal effects. Good, easy-to-prepare effect
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Embodiment 1
[0030] An insecticide used for soybeans comprises, by weight, 10 parts of coral cherry, 30 parts of anthurium, 16 parts of tuberose, 12 parts of poinsettia, 12 parts of amaryllis and 20 parts of nandina. The preparation method of the insecticide for soybean is characterized in that: comprising the following steps:
[0031] (1) The raw materials are respectively pulverized, sieved, and mixed to obtain a mixture; the raw materials are coral cherry, anthurium, tuberose, poinsettia, amaryllis, and nandina;
[0032] (2) Add 6 times the amount of 95% ethanol aqueous solution to the mixture, heat to 70°C and decoct for 2 hours;
[0033] (3) Filtrate, collect the filtrate, add 10 times the amount of 95% ethanol aqueous solution to the filter residue, heat to 50°C and decoct for 4 hours;
[0034] (4) Filtrate, combine the filtrates, concentrate to 1 / 20 of the total amount of ethanol, add 3 times the volume of water, and let stand for 48 hours;
[0035] (5) Filtrate, concentrate the f...
Embodiment 2
[0037] An insecticide used for soybeans comprises: 20 parts of coral cherry, 20 parts of anthurium, 20 parts of tuberose, 15 parts of poinsettia, 10 parts of amaryllis and 10 parts of nandina. The preparation method of the insecticide for soybean is characterized in that: comprising the following steps:
[0038] (1) The raw materials are respectively pulverized, sieved, and mixed to obtain a mixture; the raw materials are coral cherry, anthurium, tuberose, poinsettia, amaryllis, and nandina;
[0039] (2) Add 8 times the amount of 95% ethanol aqueous solution to the mixture, heat to 70°C and decoct for 2 hours;
[0040] (3) Filtrate, collect the filtrate, add 8 times the amount of 95% ethanol aqueous solution to the filter residue, heat to 50°C and decoct for 4 hours;
[0041] (4) Filtrate, combine the filtrates, concentrate to 1 / 10 of the total amount of ethanol added, add 1 times the volume of water, and let stand for 24 hours;
[0042] (5) Filtrate, concentrate the filtrat...
Embodiment 3
[0044] An insecticide used for soybeans comprises, by weight, 13 parts of coral cherry, 26 parts of anthurium, 10 parts of tuberose, 5 parts of poinsettia, 15 parts of amaryllis and 5 parts of nandina. The preparation method of the insecticide for soybean is characterized in that: comprising the following steps:
[0045] (1) The raw materials are respectively pulverized, sieved, and mixed to obtain a mixture; the raw materials are coral cherry, anthurium, tuberose, poinsettia, amaryllis, and nandina;
[0046] (2) Add 7 times the amount of 95% ethanol aqueous solution to the mixture, heat to 60°C and decoct for 3 hours;
[0047] (3) Filtrate, collect the filtrate, add 9 times the amount of 95% ethanol aqueous solution to the filter residue, heat to 60°C and decoct for 3 hours;
[0048] (4) Filtrate, combine the filtrates, concentrate to 1 / 15 of the total amount of ethanol added, add 2 times the volume of water, and let stand for 36 hours;
[0049] (5) Filtrate, concentrate th...
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