Choose healthy and strong seedlings, set the plant spacing at 25-30 cm× 30-40 cm, plant 4000-5000 plants per mu, and supply appropriate amount of water and fertilizer to ensure high yield and high quality, and harvest them 25-30 days after planting. Generally, shoots with 5-6 leaves and a length of 10-20cm are harvested as products. They are harvested every 15-20 days in the normal growing season, with a maximum yield of 500kg per mu and an annual output of about 5,000 kg. Properly managed, planting in protected areas can yield more than 3 years, and under normal circumstances, the annual income per mu is more than 20 thousand yuan.