Broadcasting Methods and Key Sowing Techniques for Codonopsis pilosula

First rake off the surface dry soil, use a scraper to level the bed surface, evenly broadcast the seeds over the bed surface, lightly sweep the bed surface several times with a broom, mix the seeds into the topsoil, and then compact.

After sowing, cover the bed surface with 1 layer of rice straw, millet straw, corn stalks, etc., and then water appropriately, keeping the soil moist regularly to facilitate seedling emergence.

Sowing rate: 15 kg per hectare for drilling, 15-20 kg per hectare for broadcasting.

Codonopsis pilosula seeds are small; to sow evenly, the seeds can be mixed with an appropriate amount of fine sand before sowing.

For directly sown Codonopsis pilosula, if seedling-stage management is poor, the emergence rate is low, the seedling survival rate is poor, and growth is slow. However, the roots are fleshy and solid, of good quality, labor-saving at sowing time, and can make full use of the land.

When the seedlings reach about 5 cm in height, gradually remove the covering material; when the seedlings are 7-10 cm tall, thin to a plant spacing of 7-10 cm.