Application of potassium permanganate pollution-free fungicides on vegetables

Potassium permanganate is a strong redox agent. It is a kind of surgical medicine commonly used by humans and animals. It is commonly known as pp powder. Its solution has strong sterilization, disinfection and antiseptic effects. According to my experiments, it is proved that the effects of different concentrations of the solution on vegetable seedling stage rickets and blight, downy mildew, soft rot, blight, root rot, virus disease and other diseases are very significant. At the same time, it contains two kinds of nutrients such as manganese and potassium, which can increase the yield of crops by more than 10%. It can be said to be used for both medicine and fertilizer. According to medical experts, the drug is rich in source and low in cost. It is sold at pharmacies all over the country and is easy to purchase. It is safe and non-toxic to humans and animals when used. It has no residue, no phytotoxicity to the crops, and no pollution to the environment. Therefore, potassium permanganate is a kind of fungicide which is a combination of medicine and fertilizer, and is a rare non-toxic, non-residual and pollution-free vegetable. It mainly has the following aspects in the prevention and control of vegetable diseases:
First, prevention and treatment of rickets, blight pepper, eggplant, tomato before sowing with warm water to soak the seeds for 3 - 4 hours, then add potassium permanganate 500 times in the soak for 15 minutes, rinse with water dried after sowing; and treated with postemergence 1000--800 times every 7 - 10 days (after the first rich lean) spraying three times, strain rate of incidence can be controlled within 2%. According to the test, the effect of potassium permanganate on the disease resistance of the solanaceous seedlings is as high as 97%, and the effect is significantly better than that of carbendazim, dexamethasone, pentachloronitrobenzene and dikesone.
Second, proven control downy mildew, downy mildew control vegetable potassium permanganate having a good effect, significantly better than chlorothalonil, zineb and other pesticides. For example, if the cucumber is sprayed with potassium permanganate 800-600 times before the emergence of the leaves, the cucumber is sprayed with potassium permanganate 800-600 times, and sprayed 4 times for 4 times, which can effectively prevent the occurrence of downy mildew. yield 10% --15%. If the center strain occurs, with potassium permanganate spray even 600 times 3 times, at intervals of 5 days, with good control of downy mildew.
Third, control of soft rot potassium permanganate can effectively control soft rot of cruciferous vegetables such as cabbage after sowing prepreg 1 hour before water temperature, remove and then immersed in potassium permanganate in 1000 times Soaking 2 hours, And in the seedling period to the rosette period with 800-600 times liquid spray 3 - 4 owed, can effectively prevent soft rot, and can also cure cabbage downy mildew.
Fourth, the prevention and control of blight, root rot with potassium permanganate to prevent melons, beans, solanaceous blight, root rot effect is significantly better than tobuzin, dixon and other pesticides. For example, watermelon can be soaked with 1000 times of potassium permanganate solution for 8-10 hours before planting, and then 1500 times with liquid solution when planting, and then used for 600-1000 times liquid pouring and spraying after slow seedling. Cross-use 4 times, not only can prevent the occurrence of blight, but also increase production by about 15%. If you are in the field of disease, you should use 800-1000 times of liquid in the early stage of the disease to irrigate the roots of the whole field. Each plant is 1500ml, 5-7 days, and 3 times, can achieve significant control effect. Another example is the prevention and control of pepper root rot, which can be poured with potassium permanganate 500 times after the fruit is placed in the door, 7-10 days, for 3 to 4 times, to prevent the occurrence of pepper root rot. Even if the root rot of the pepper occurs, the root is irrigated with 500 times of liquid immediately after the onset of the disease, once every 5-7 days, and 4 times of continuous irrigation, the control effect can reach more than 90%. For example, prevention and control of cowpea wilt and root rot, from the 5-7 seedling stage of cowpea, it can be effectively prevented by the high-acid potassium 800-1000 times solution for 3 to 4 times; Even if the disease occurs, it is drenched with 600 times of liquid, once every 5-7 days, 4 times in a row, and the control effect is more than 90%.
Fifth, the prevention and treatment of viral diseases with potassium permanganate to prevent vegetable virus disease is significantly better than the virus A, bacteria poison clear and other pesticides. In the early stage of the disease, peppers and other solanaceous fruits use 600-800 times liquid, zucchini and other melons and fruits use 600-800 times liquid, zucchini and other melons use 1000-1200 times liquid to spray the whole plant, 5—— 7 days, even spray 3 - 4 times. If you use 800-1000 times solution of potassium permanganate and double-effect auxin virus K, the effect of preventing and treating viral diseases is better, not only can control the spread of viral diseases, but also make the disease disappear and restore vitality. The role of returning to life. However, it should be noted that before the prevention and treatment of viral diseases, the sucking pests on the plants should be prevented to prevent insects from transmitting poison.
6. Sterilization and disinfection of the greenhouse The addition of high manganese to potassium into the formalin solution produces formaldehyde vapor, which disinfects the inoculation box and chamber of the edible fungus and has a good sterilization effect. When fumigation, use 10 ml of formalin per ml of space and add 5 g of potassium permanganate particles, and steam in a closed box and room for 4-6 hours.
When using potassium permanganate spray, it should be noted that the drug is continuously stirred evenly to dissolve the drug particles, and it can be used as needed to prevent long-term oxidation failure. In addition, the spraying should be carried out at about 9:00 am or after 4:00 pm, and the seedlings before 7 leaves are sprayed with water for 5 minutes, and the seedlings are used at low concentrations, and the adult plants are used at high concentrations.
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