It is best to choose fertile, loose ripe land. Before winter, it is best to deep plowing and freezing, and after spring, spread 2000kg of rotted farmyard fertilizer

right, rectify the fine harrowing, ditching and making beds, in order to facilitate the planting.

2, planting season: spring planting is good, Qinghai and other places generally in late April - early May planting. Other areas,

Suitable for the termination of spring frost, the ground temperature stabilized at about 10 ℃ when planting.

3, seedling source: at present, more from the field to dig fern rhizomes; later, to gradually cultivate strong seedlings, in order to stabilize

high yield.

4, strip seeding dense planting: generally use strip seeding, row spacing of 30cm or so, the rhizomes will be sown in the bed, sowing depth of 6cm or so.

In case of drought, pour enough bottom water to improve the seedling rate.

5, appropriate management: to timely irrigation, to keep the soil moist; after the rain and irrigation to loosen the soil, in order to facilitate the preservation of moisture, such as

weeds too much, but also in a timely manner in the plow weeding, timely application of appropriate amount of phosphorus, potash, and to promote the expansion of cylindrical roots.

6, timely digging: after the fall, the base of the rhizome leaves yellowed and died, you can dig.