1. First, select sandy soil with medium fertility and good drainage, then prepare the soil for the border and apply sufficient base fertilizer.

2. Dig pits according to the row spacing of 40 cm and the plant spacing of 25 cm, put 2-3 seeds in each pit, cover with soil and water, and generally germinate in 7- 10 days. During the growth of seedlings, it is necessary to do a good job of thinning and replenishing seedlings, intertillage weeding and topdressing. Finally, pay attention to insect prevention.