1、 Prepare seeds and soil

1. Soil: when planting Rehmannia glutinosa, the soil with good air permeability should be selected. Because the soil with good air permeability has more internal gaps and less pressure, it is more suitable for plant growth. After selecting the soil, the soil should be exposed to the sun for disinfection

2. Seeds: when planting, some healthy, complete, round and full seeds should be selected as seeds for planting. Before planting, they should be soaked in warm water at about 25 ℃ for about 48 hours, and their shells should be soaked soft. This is more conducive to their germination

2、 Sowing

After the soil and seeds are ready, they can be sown. First put the soil into the seedling container and level the surface. Then put the seeds gently on the surface of the soil and cover it with 1-2cm thick thin soil. Covering the soil is to prevent the seeds from being blown away by the wind. However, when covering the soil, we must control the thickness of the soil, not too thick, otherwise it will bring great resistance to seed germination and reduce the germination rate of seeds

3、 Later maintenance

After planting, first water the seeds and water the soil. Then, they should be covered with a film to maintain temperature and humidity. If the temperature and humidity are too low, they will be difficult to germinate. After that, water timely to keep the soil slightly wet. In this way, after about 10 days, they can germinate