Sterilization composition containing kresoxim-methyl and radix sophorae flavescentis extract
The technology of an extract, kresoxim-methyl, is applied in the field of fungicidal compositions containing kresoxim-methyl and Sophora flavescens extract, which can solve problems such as damage to new leaves and affecting crop growth
Inactive Publication Date: 2015-11-18
HUZHOU XULONG BIOCHEM
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Problems solved by technology
[0005] It can inhibit the invasion of pathogenic spores and has good protective activity. It can comprehensively and effectively control various fungal diseases of vegetables, fruit trees, flowers and other plants. The safety interval of its products is 4 days. Such diseases exist in every generation stage of crops, especially at the seedling stage, and if the seedling stage is not properly controlled, it will have a significant impact on the generation and results of the crops, while kresoxim-methyl has no effect on vegetables and fruit trees at the seedling stage. Excessive dosage will cause harm to new leaves and affect crop growth
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Embodiment 1
[0016] The original drug of kresoxim-methyl and the extract of Sophora flavescens are taken, added into sterile water and a small amount of surface active agent, and after ultrasonic treatment, the mother liquors are prepared respectively. According to the purpose of mixing, set the ratio of multiple groups of medicines, 1:9, 1:4, 3:7, 2:3, 1:1, 3:2, 7:3, 4:1, 9:1, each ratio Both are the mass ratios of the active ingredients of the two medicaments.
[0017] Wherein the Sophora flavescens extract is obtained through the following steps: using fresh Sophora flavescens roots dug in spring as a plant source, using acetone heat reflux method to extract for 3-5 hours, performing 20-fold concentration, and vacuum freeze-drying to obtain.
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The invention belongs to the technical field of sterilizing agents, and relates to a sterilization composition containing kresoxim-methyl and radix sophorae flavescentis extract. The sterilization composition contains effective components like the kresoxim-methyl and the radix sophorae flavescentis extract, and the weight ratio of the kresoxim-methyl to the radix sophorae flavescentis extract is 1:10-10:1. The radix sophorae flavescentis extract is obtained through the following steps that fresh radix sophorae flavescentis dug in spring serves as a plant source and is extracted for 3-5 h through an acetone hot reflux method, and the extraction product is concentrated in a 20-fold mode and treated through vacuum freeze drying to obtain the radix sophorae flavescentis extract. According to the sterilization composition containing the kresoxim-methyl and the radix sophorae flavescentis extract, by compounding the kresoxim-methyl and the radix sophorae flavescentis extract, own advantages of the radix sophorae flavescentis extract are used, kresoxim-methyl residues on fruit epidermides can be cleared in the sterilization process, vegetables are supplemented with enough nutrition to promote growth and repair of damaged new leaves, the sterilization composition can assist in generation of fruits in the seedling stage while realizing effective sterilization, and the powdery mildew control efficiency can reach over 95%.
Description
technical field [0001] The invention belongs to the technical field of fungicides, and in particular relates to a fungicide composition containing kresoxim-methyl and Sophora flavescens extract. Background technique [0002] The prevention and control of crop diseases accounts for a large proportion of agricultural production costs. With the development of science and technology, a large number of fungicides continue to emerge, and their efficacy is getting higher and higher. In actual use, many fungicides have strong specificity and a narrow target range, which is difficult to meet the requirements of control and requires the mixed use of multiple agents. However, the technical content of pesticide mixing is relatively high, and the mixed use of pesticides by farmers often leads to decreased efficacy and phytotoxicity. Therefore, it is necessary to make a fungicide with good compound effect into a compound agent, which has achieved the purpose of simple and efficient disea...
Claims
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IPC IPC(8): A01N65/20A01P3/00A01N37/50
Inventor 沈伟
Owner HUZHOU XULONG BIOCHEM