1, the emperor vegetable is suitable for spring and fall planting, spring planting is generally in February to April or so, fall planting is generally between August and September, the specific planting time to take into account the local soil and climate environment.

2, there are two ways to sow the emperor vegetable, generally with the way of sowing, before sowing to do a good job of watering the soil to preserve moisture, when the water seeped into the soil after the start of sowing, pay attention to planting the seeding density, pay attention to the mulch after sowing to preserve water and fertilizer, and to promote the seed of the germination of the seedling.

3, field management. In fertilizer management, to reapply basal fertilizer, acres of rotted pig and cow dung and other 2000 kg or more. After transplanting to be diligent in the thin application of nitrogen fertilizer or human urine, the first fertilizer can be transplanted 7 days later. After entering the vigorous growth period, to reapply fertilizer, according to its growth every 10-15 days fertilizer. The front must be timely plowed and weeded. Spring and summer are in the rainy season, to dig deep ditches to drain, to prevent the field from waterlogging.

4, the emperor's lettuce, is the chrysanthemum family coronarium genus of plants, distributed in Anhui, Fujian, Guangdong, Guangxi, Guangzhou, Hainan, Hebei, Hunan, Jilin, Shandong, Jiangsu.