Seed coating agent for preventing and treating root-rot disease as well as preparation method and application of seed coating agent
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A technology of root rot and suspended seed coating agent, applied in the field of pesticides, can solve the problems of reduced control effect and difficult control, and achieve the effects of long duration, low cost and convenient use
Inactive Publication Date: 2018-07-20
SICHUAN AGRI UNIV
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Because Fusarium has a wide range of hosts, it can harm wheat, corn, soybeans, tobacco and other crops, and can survive for a long time on the field residue, soil surface or inside, resulting in soybean root rot caused by Fusarium. happens, hard to prevent
[0003] Seed coating is one of the most effective measures to prevent and control soybean root rot, but the commonly used seed coating agents in production are mostly in the form of a single agent, and their use is often restricted by factors such as control effect, application range, and phytotoxicity. Increased resistance to pests and diseases and reduced control effects
Method used
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Embodiment 1
[0031] This embodiment provides a seed coating agent for preventing and controlling root rot, the seed coating agent includes uniconazole, tebuconazole, and poisonous spirit in a mass ratio of 1-5:1:8-20.
Embodiment 2
[0033] This embodiment provides a seed coating agent for preventing and treating root rot, the seed coating agent includes uniconazole, tebuconazole, and poisonous spirit in a mass ratio of 1-5:1:8-20. In addition, it also includes wetting agents, wetting and dispersing agents, film formers, thickeners, defoamers, antifreeze agents, fillers, pigments and water.
Embodiment 3
[0035] The present embodiment provides a seed coating agent for preventing and treating root rot, the seed coating agent comprises 1-5% of uniconazole in mass fraction, 1% of tebuconazole, 8-20% of baline, dodecyl Sodium sulfate 1-3%, phenethylphenol polyoxyethylene ether 3-5%, polyvinyl alcohol 3-5%, xanthan gum acid 0.1-0.3%, ethylene glycol 1-3%, n-octanol 1- 3%, rhodamine B 0.4-0.6%, and the balance is water.
[0036] The seed coating agent for the prevention and treatment of root rot provided by the present embodiment is prepared by the following method:
[0037] Step 1: Take polyvinyl alcohol in proportion, add distilled water, heat in a water bath at 60-100°C, boil it into a uniform, transparent jelly without insoluble matter, and set aside.
[0038] Step 2: Weigh the other raw materials in proportion, make up the balance with water, transfer all the materials to the colloid mill for preliminary grinding for 15-25 minutes, then transfer to the multi-functional grinding...
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Abstract
The invention discloses a seed coating agent for preventing and treating root-rot disease as well as a preparation method and application of the seed coating agent, and relates to the technical fieldof pesticide. The seed coating agent for preventing and treating the root-rot disease is prepared from uniconazole, tebuconazole and hymexazol, wherein the mass ratio of the three components is (1 to5) to 1 to (8 to 20). According to the preparation method of the seed coating agent for preventing and treating the root-rot disease, disclosed by the invention, the uniconazole, the tebuconazole andthe hymexazol with different action mechanisms are compounded and screened to obtain an optimum compound proportion; the compounded medicament with the proportion has synergistic effects on three kinds of pathogenic fusarium which cause the root-rot disease. Furthermore, on the basis of the proportion, suitable excipients are added to prepare a suspended seed coating agent; particularly, the suspended seed coating agent has obvious significant prevention and control effects on the root-rot disease, so that early prevention of the root-rot disease is realized; the suspended seed coating has thecharacteristics of high efficiency, low toxicity, long persistence, low cost, convenience in use, environment friendliness and the like; meanwhile, the seed coating agent has a promotion effect on seed germination.
Description
technical field [0001] The invention relates to the technical field of pesticides, in particular to a seed coating agent for preventing and treating root rot and its preparation method and application. Background technique [0002] Root rot is an important soil-borne fungal disease in crop production, and the incidence of the disease is extremely high. Root rot occurs widely in soybean producing areas in my country, and has the characteristics of severe disease and difficult control. Domestic and foreign studies have reported that Fusarium is the main pathogenic bacteria of soybean root rot, especially Fusarium oxysporum and Fusarium solani F.solani. Fusarium graminearum F.graminearum, Fusarium equiseti F.equiseti, Fusarium laminarum F.proliferatum, etc. can also cause soybean root rot. The study found that the pathogenic Fusarium populations in different regions are often different due to the influence of cultivation methods, ecological environment and climatic conditions...
Claims
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Application Information
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