What are the key technical points and management methods for planting Panax notoginseng seedlings?
Panax notoginseng is a traditional Chinese medicinal herb. Its dried rhizome can be used as medicine, with the effects of promoting blood circulation and removing blood stasis, reducing swelling and relieving pain. It mainly treats hemoptysis, hematemesis, bloody stool, traumatic bleeding, and swelling and pain from falls and fractures. Panax notoginseng is propagated by sowing seeds. Its seeds easily lose viability after drying, so they must be sown immediately after harvesting. Let's take a look at the seedling cultivation techniques for Panax notoginseng below.
1. Site selection and land preparation
Choose a gentle slope with a relatively low position and good drainage as the seedling site. The previous crop is best to be corn, peanuts, soybeans, or other such crops, while Solanaceae crops are not allowed. After selecting the seedling site, leave it idle for 3-6 months and repeatedly cover it to promote soil weathering. If conditions allow, you can also spread plant ash or lime powder for disinfection. During the final plowing, apply 4000-5000 kg of decomposed farmyard manure per mu as base fertilizer. After raking fine and leveling, make beds. The width and height of the beds should depend on the terrain.
2. Seed treatment
Each year when the fruit matures, pick the fruit produced by plants that have grown for 3-4 years, remove the peel, wash clean, dry the surface moisture, and then soak the seeds in a low-concentration solution of zineb or thiophanate-methyl for 8-10 minutes for disinfection. Panax notoginseng seeds have weak viability and will lose viability after drying, so they are not suitable for storage. Therefore, sow them immediately after harvesting.
3. Sowing
Sowing uses the spot seeding method. Open holes on the bed surface at a spacing of 5×6 cm, sow 3-4 seeds per hole, cover with a layer of shallow soil after sowing, then evenly scatter a layer of compound fertilizer on the soil, and cover with a layer of weeds, which can prevent weed growth. Use 70,000-100,000 seeds per mu, about 10-12 kg. After sowing, water thoroughly once, then cover with plastic film, which can clearly conserve water, save fertilizer, and increase yield.
4. Seedling stage management
After seedlings emerge, promptly remove the plastic film and covering grass. In dry weather, water and irrigate frequently to keep the soil moist and maintain the water needed by the seedlings. After rain, drain water promptly to prevent waterlogging, so as to avoid root rot of the seedlings. During the seedling stage, weed promptly. In addition to water management, timely topdressing to promote seedling growth is also necessary. Topdressing at the seedling stage is mainly phosphorus fertilizer, generally 3 times: the first when seedlings are full, the second in May, and the third in July.
The above is an introduction to Panax notoginseng seedling cultivation techniques. We hope it helps you. To learn more planting knowledge, please stay tuned to us.