Key Techniques for Planting and Cultivation Management of Cynanchum otophyllum
Cynanchum otophyllum is a plant with considerable medicinal value and fairly good economic value, making it quite suitable for artificial cultivation. It prefers moist and warm environments, and is grown by many people in southern regions. Now let's take a look together at how to grow Cynanchum otophyllum.
1. Seedbed Selection
The soil for breeding Cynanchum otophyllum must be treated beforehand before planting. The soil should first be fertilized with compost, mixed with some dried branches and leaves and similar materials, then added with some livestock manure for composting over a period of time, and then placed under direct sunlight to bake for about 3 days. If the soil is relatively heavy and clayey, it is best to mix in some fine river sand to enhance permeability, then place it into the pre-selected seedling nursery site and level the surface. Put the seeds in, cover with about 2 cm of soil, and cover the surface with grass material for insulation; there must be no direct sunlight.
2. Transplanting and Planting
Once the seedlings emerge and reach 5-10 cm, transplanting can begin. The spacing for each seedling should be controlled at around 40-50 cm; place compost fertilizer into the planting holes beforehand, then put the seedlings in. The seedlings should be upright, which benefits later growth. The planting holes should be higher than the surrounding soil so that the young sprouts can be properly insulated; the soil does not need to be compacted, a light press is enough. If the temperature is relatively low, you can appropriately cover with plastic sheeting or grass material to resist the low nighttime temperatures.
3. Fertilizer and Water Management
After planting the seedlings, appropriately water with some manure water so they have enough nutrients in the early stage. For later topdressing, it needs to be done according to schedule: for 1-2 year old seedlings, control it to once every 1-2 months, with a small amount being sufficient. Farmyard manure is best as the fertilizer type, with chemical fertilizer second. The amount of farmyard manure should be controlled at around 2500 jin per mu, and the amount of chemical fertilizer at around 300 jin per mu, with the amounts adjusted appropriately according to the situation. After the seedling stage, control it to fertilizing once per quarter; the flowering period and the month before the flowering period are the two time periods for reverse-order topdressing.
4. Field Management
Because the growing period of Cynanchum otophyllum is relatively long, field management mainly focuses on weeding, especially during the seedling stage. During the seedling stage, weeding must be done once a month, and loosening the soil at the same time helps the seedlings grow quickly. If weeds grow vigorously in summer, it needs to be done more frequently. For diseased or dead seedlings, remove them directly and do not give them a chance to spread. If you are not sure about the timing of fertilization, you can carry out topdressing after each weeding. Every year before winter arrives, cold protection preparations must be made in advance to avoid freezing damage to the plants.
The above is the general process for growing Cynanchum otophyllum. The time required to grow Cynanchum otophyllum is generally relatively long. In order to promote the growth of its roots, growers may consider removing the flowers in the early stage so that nutrients can be better concentrated in the roots.