Prevention and Treatment of Infectious Diseases of Seedlings

First, choose a good nursery. The light-viscous loamy soil or sandy loam soil with good water source and high groundwater should be selected as the nursery, and the rotation system should be adopted, and the same nursery stock should not be continuously cultivated in the same nursery. Nursery soil must be disinfected in advance. 1 Formalin disinfection. For every square meter of nursery, 50ml of formalin and 10kg of water were sprayed on the ground surface evenly, and then covered with plastic film or straw bag. The covering was opened about 10 days and the gas was volatilized. The seeds could be sown two days later. 2 carbendazim disinfection. Use 50% wettable powder, 1.5 grams per square meter. It can also be formulated in a ratio of 1:20 to spread the seedlings on seedbeds, which can effectively prevent seedling diseases. 3 pentachloronitrobenzene disinfection. For every square meter of nursery, use 45% of 75% pentachloronitrobenzene and 5 grams of zein-zinc, and then mix well with 12 kg of fine soil. Cover the plant with a cover and cover it for anthracnose, blight, and damping-off. Sclerotinia and other special effects. 4 ferrous sulfate disinfection. Use 3% of ferrous sulfate solution to treat the soil, 0.5 kg per square meter of liquid medicine, can prevent seedling blight of flowers and trees, peach, plum leaf shrinkage, and concurrent treatment of flowers caused by iron deficiency yellowing. It is best to plunge deep in winter and turn it over once in the second year. Second, the seed disinfection. Seeds should be sown before sowing to eliminate sick and weak species. The seeds are to be treated with drugs: 0.3-0.5% potassium permanganate solution can be used for soaking seeds for 0.5-1 hour or the seeds can be soaked in warm water at 50°C for 24 hours, and then the sinking seeds can be removed with 0.2% of Formosa. Soak the seed solution for 30 minutes and remove it for 2 hours. Can also be used 0.5-1% copper sulfate soaking for 1-2 hours, then pick up the seeds rinse with water clear liquid, timely drying after sowing. Pay attention to the depth when sowing, cover soil should not be too thick, so that the seed germination seedlings. Third, the pharmaceutical treatment. From the beginning of the seedling stage, spray the forest seedlings with 0.5-1% Bordeaux mixture 50-75 kilograms per acre seedbed every 7-10 days to form a protective film on the outside of the seedlings to prevent the invasion of pathogens. At the same time, it is necessary to put a good fertilization off, fertilizer should be mainly applied to farmer fertilizer, fertilizer supplement. Garbage, compost, and manure may contain pathogens and should be put on the ground before fermentation can be used. After the onset of disease, remove the diseased seedlings in time and sprinkle lime powder around the diseased seed holes to prevent the spread. And apply the pesticide once every 10-15 days, can use 100 grams of enemy pine 500-800 times per acre, or 65% of 300-800 times that of dason 300 kg spray, can also be used 1:100 A 150 kilograms of arsenic-sulphonate-based soil, or 8:2 lime-lime powder, are mixed and applied to the nursery bed for treatment. Can also be used ammonium copper spray treatment.

Canned Fruit is named after different materials. The main ingredients of canned fruits are fruits, including peaches, apples, oranges, strawberries, pineapples and so on. Such as canned yellow peaches, canned strawberries, canned oranges, canned assorted fruit etc.The main material are kinds of fruit, drinking water and sugar etc.canned fruit`s export packing is tin. Canned fruit is the first choice for many people after dessert because of its convenience.Therefore, canned fruit is very popular, and the consumption level in developed countries such as Europe and America is higher. Canned fruit in full compliance with people's pace of life and habits.

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