Suitable planting time for Panax notoginsengPanax notoginseng is generally sown in winter and spring. The planting time varies in different planting locations. Usually, it is sown in late November to December in the southern region, and in March or April in the northern region. Panax notoginseng planting methods and key points1. Select the site: The site for planting Panax notoginseng should have a certain slope to facilitate irrigation and drainage. The soil should be humus soil rich in organic matter or sandy soil or loam. If it is heavy clay, it is not suitable for planting Panax notoginseng. In addition, there must be sufficient water sources near the planting site. 2. Fertilization and ridge making: After selecting the planting site for Panax notoginseng, deep plowing should be carried out and the soil should be disinfected and sterilized before planting. Then, about 5,000 kilograms of decomposed farmyard manure should be applied per mu as base fertilizer, and finally trenches should be dug and ridges should be made. 3. Sowing and seedling raising: Before sowing Panax notoginseng, the seeds need to be screened and disinfected to increase the germination rate of the seeds and isolate the virus. When sowing, spot sowing is carried out according to the row spacing of 6 cm and the plant spacing of 5 cm. After sowing, a layer of straw needs to be covered, which can not only moisturize the soil, but also achieve the effect of heat preservation. Key points for Panax notoginseng management1. Transplantation: Panax notoginseng generally needs to be raised for about one year before it can be transplanted. When transplanting, weak and diseased seedlings can be pulled out, and then they can be planted at a distance of 20 cm between rows and 15 cm between plants. After planting, watering is required in time to increase the survival rate of Panax notoginseng. 2. Fertilization: During the growth of Panax notoginseng, it is necessary to apply fertilizer according to the principle of small amounts and multiple times. This can promote the fullness of the fruits of Panax notoginseng. At the same time, in order to prevent Panax notoginseng from consuming too many nutrients, all the flower stalks can be removed to concentrate the nutrients on the growth of the roots. 3. Pests and diseases: In the process of planting Panax notoginseng, common pests and diseases include damping-off disease, anthracnose, root rot, aphids, scale insects, etc., which can usually be prevented and controlled with Bordeaux mixture or drugs such as thiophanate-methyl and carbendazim. Pests such as aphids and scale insects can generally be prevented and controlled with drugs such as dimethoate emulsifiable concentrate. |
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