2. The planting method is as follows: land selection and soil preparation: select a plot with sufficient light and convenient drainage, clean up sundries, sprinkle farmyard manure and make a good drainage ditch. Sowing in the soil: water the soil in advance, scatter the seeds on the soil surface and cover with thin soil. Planting and transplanting: when the seedlings grow to the height of 15 cm and have five leaves, transplant them and plant them in the soil with clods.

3. Field management: weed removal in time and rational topdressing.