Detailed Explanation of Stephania tetrandra Planting Techniques and Management Methods
Stephania tetrandra, also known as fen fang ji and mu fang ji, is a traditional Chinese medicinal herb in China. It has the effects of promoting diuresis and reducing swelling, and dispelling wind and relieving pain. It has good therapeutic effects on many diseases, and can also protect the liver and detoxify, with extremely high medicinal value. Because market demand is huge and wild resources are depleted, many regions have begun to cultivate it at home. So how should Stephania tetrandra be planted? Let's take a look.
1. Site selection and land preparation
It prefers a warm and humid environment and is intolerant of drought and waterlogging, so when planting, it is best to choose well-drained, deep, fertile and loose sandy loam soil, preferably on hillsides or wasteland. Before planting, plow deeply and sun the soil, using sunlight to kill soil-borne pests and pathogens. Then apply base fertilizer, level the land after shaping, and make high beds. The beds should be 25-30 cm high and 1.2-1.3 m wide, with drainage ditches made well. If conditions permit, formaldehyde solution can be sprayed for disinfection and sterilization.
2. Propagation methods
Stephania tetrandra can be propagated by two methods: seeds and cuttings. Seed propagation can be carried out in early spring or late autumn by drilling. Open furrows on the bed surface at a row spacing of 20 cm, evenly scatter the seeds into the furrows, and cover with a thin layer of soil. After sowing, straw can be spread over the bed surface to keep warm and moist, which helps seedling emergence. For cutting propagation, first select robust vines that have grown for 1-2 years from healthy, pest-free mother plants as cuttings, cut them into 10-15 cm lengths, and insert them in March-April, that is, around Qingming. Insert them at a plant and row spacing of 10×15 cm, with one third of the cutting buried in the soil. Water after insertion, and cover with grass to keep warm and moist.
3. Field management
Stephania tetrandra seedlings are shade-loving, so after the seedlings emerge and after cuttings are inserted, proper shading should be provided. They can also be intercropped with other tall crops to promote rapid seedling growth. In spring, cultivate and weed in time to prevent weeds from running rampant and affecting seedling growth. After rain, the soil tends to harden, so cultivate and loosen the soil frequently to benefit plant growth. After transplanting, water frequently to keep the soil moist so the plants can survive. After the plants survive, water less, especially in the rainy season, and drain promptly to avoid root rot. During the flowering period, the plants consume a large amount of nutrients, so at this time apply 2500 kg of human and animal manure per mu. After the beginning of spring, apply another 150 kg of farmyard manure per mu to promote bud differentiation.
4. Pest and disease control
Diseases of Stephania tetrandra generally occur during periods of high temperature and high humidity in summer. At this time, the main diseases are leaf spot and root rot. When leaf spot occurs, Bordeaux mixture can be sprayed for control; for root rot, copper sulfate can be sprayed for control. Pests include swallowtail butterflies, aphids, and scarab beetles. For swallowtail butterflies, trichlorfon can be sprayed for control; for aphids, dimethoate can be sprayed for control; for scarab beetles, trichlorfon can be sprayed for control.
The above is an introduction to the planting techniques for Stephania tetrandra. We hope it can help you. If you want to learn more related knowledge, please follow us.