1. Seed selection: Use fresh seeds harvested in the same year, not chafed or moldy seeds, and do not damage them.

2. Seed soaking: soaking in warm water, taking out cold water for soaking, and the amount of water should be 2-3 times that of seeds.

3. Accelerating germination: spread a towel on the bottom of the container, evenly put the seeds into the container, cover them with a towel after spraying water, and pay attention to moisturizing.

4. Sowing: Sprinkle the seeds on the seedling tray, cover the soil with the thickness of 1.5cm, control the germination temperature between 16~25℃, and strengthen ventilation.