Detailed explanation of the key points of Rhaponticum uniflorum planting technology, easily master the cultivation and management methods
Rhaponticum uniflorum, also known as wild orchid, ghost oil hemp, and wolf-head flower, is a perennial herbaceous plant. Its roots can be used as medicine and have effects such as clearing heat and detoxifying, reducing swelling and discharging pus, promoting lactation and unblocking meridians and vessels. It is a relatively commonly used medicinal material in traditional Chinese medicine. So how should Rhaponticum uniflorum be planted? Let's learn about it together.
1. Site selection and land preparation
Rhaponticum uniflorum has low requirements for soil, and ordinary soil can support its growth. For cultivation, sandy soil is suitable, while low-lying land and relatively heavy clay soil are not suitable for planting. Choose a sunny sloping field for planting, deeply plow the ground 25-30 cm, apply 1500-2000 kg of decomposed farmyard manure per mu as base fertilizer, spread it evenly on the ground, rake it fine and level it, and make beds 1.2 m wide and 20 cm high, with the length depending on the planting area.
2. Sowing and seedling raising
The fruit matures every summer, and at this time the seeds can be harvested. After harvesting, sowing and seedling raising can be carried out. First water the seedbed thoroughly, then evenly broadcast the seeds on the bed surface. In order to improve the seed germination rate, the seeds can be soaked and pre-germinated before sowing. First put the seeds in warm water and soak them for 2-3 days, changing the water every day. After soaking, wrap the seeds in gauze and place them in an environment of 25-30 degrees for pre-germination. During pre-germination, rinse them once a day with warm water until most seeds show white sprouts, and then they can be sown. About 7-10 days after sowing, seedlings emerge. At this time, water them in a timely manner to promote seedling growth.
3. Transplanting
After the seedlings emerge, they grow relatively quickly. Generally, after 10-20 days, when 2-3 true leaves have grown, they can be transplanted. Combine intertillage and weeding to loosen the soil a little, then lift the seedlings and transplant them, transplanting them as soon as they are lifted. It is best to choose evening or cloudy days for transplanting. Use hole planting, planting one plant per hole, controlling the plant spacing and row spacing at 15×15 cm, and planting two rows in a relatively staggered manner. After planting, water thoroughly. The survival rate is as high as over 95%. When transplanting, keep some seedlings for replanting. Generally, if transplanting fails, replant in time.
4. Field management
After transplanting, do a good job of intertillage and weeding, loosen the soil, and promote the growth and development of the plant root system. Remove weeds whenever they are seen, so as to prevent weeds from affecting plant growth. In addition, do a good job of fertilizer and water management. Water in time during drought. Generally, plants transplanted in the same year will not bloom. In the second year around Qingming, they begin to turn green and emerge. At this time, apply some fertilizer to promote early growth. Before flowering, broadcast 3-5 kg of potassium dihydrogen phosphate per mu to increase the flowering and seed-setting rate of the plants. Foliar fertilizer spraying can also be used.
The above is an introduction to the cultivation techniques of Rhaponticum uniflorum. I hope it can help you. If you want to learn more related knowledge, please follow us.