According to the medicinal part, we classify traditional Chinese medicine as Chinese medicinal herbs bark. Herba is the whole overground part of the herb. In herb medicine area, some traditional Chinese medicine use the whole body of the plant because the whole plant has important medicinal value. Sunch as POGOSTEMONIS HERBA and MENTHAE HAPLOCALYCIS HERBA.
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Nursery soil common disinfection method
The land used as a nursery should have the best flatness, loose soil, and convenient irrigation and drainage. If there are conditions, sandy loam can be selected. In addition, soil disinfection should be performed before sowing or cutting to eliminate germs in the soil and ensure the safe growth of flower seedlings. There are many ways to disinfect, but there are the following six methods that are commonly used and have better effects: 1. Disinfection of pentachloronitrobenzene: 4 grams of 75% pentachloronitrobenzene per square meter of nursery, 5 grams of mancoze zinc, After mixing the two drugs, mix well with 12 kg of fine soil. Cover under cover when sowing. This method has special effects on the prevention and control of soil-borne anthracnose, blight, damping-off, and sclerotia. Second, the formalin disinfection method: per square meter nursery with formalin 50 ml water 10 kg evenly sprayed on the surface, and then covered with straw bags or plastic film, stuffy about 10 days to remove the cover, so that gas Dissipate and plant seedlings after 2 days. It has good effects on controlling blight, brown spot, angular spot and anthracnose. Third, Bordeaux liquid disinfection method: per square meter nursery using the same type (ie: copper sulfate: lime: water ratio of 1:1:100) Bordeaux mixture 2.5 kilograms, plus scattered 10 grams of soil sprayed soil to be soil Slightly dry to sow cuttings. For the control of black spot, spot disease, gray mold, rust, brown spot, anthrax and other effects are obvious. Fourth, carbendazim disinfection method: carbendazim can control a variety of fungal diseases, the disease caused by ascomycetes and fungicides is very obvious. Soil disinfection with 50% wettable powder, 1.5 grams per square meter, can prevent root rot, stalk rot, leaf blight, gray leaf spot disease, etc., can also be formulated as a 1:20 ratio of toxic soil sprinkled in the seedbed On the other hand, it can effectively control seedling disease. Fifth, ferrous sulfate disinfection method: 3% solution treatment of the soil, 0.5 kg per square meter with liquid, can control the needle flowers and trees seedling blight; peach, plum leaf and leaf disease. At the same time, it can also treat the yellowing disease of iron-deficiency flowers. Sixth, Daisin ammonium disinfection method: Daisin ammonium is an organic sulfur fungicide, strong bactericidal, can penetrate into the plant body, there is a certain fertilizer effect after the decomposition of the plant body. Use 50% water-soluble dimethoate 350 times, 3 kg per square meter of nursery soil to dilute water, control flower black spot, downy mildew, powdery mildew, blight, but also effective against bulbous species A variety of ball diseases.