After germination and sowing for about 5 ~ 7 days, the soil must be kept moist and the humidity should be just right to facilitate rape germination. After germination, rape will grow slowly and come out from the cracks in the straw. When it is 2-5 cm higher than the straw, the straw can be taken out. The seeds of Chinese cabbage have not germinated after 6 days, which depends on temperature and humidity. Under suitable conditions for germination, seeds will germinate after soaking in hot water for about two days, and germinate after soaking for three to four days, especially four to seven days. Only winter seeds will germinate after five to 10 days. If the temperature and humidity are not satisfied, it may not work, and it is normal not to send it or send it late.