一、温光水气的调控在生产实践中,由于冬季长期处在低温环境中,如长期封膜不揭,易造成棚内高温高湿,烟草生长不旺,或病害滋生,死苗现象严重。1.温度的调控冬季温度低,盖膜保温有利发芽生长。但温度也不宜过高,发芽前最高以高不超过28℃,超过上述界限就要揭膜降温,否则容易烧芽 First, the adjustment of temperature and light moisture In production practice, due to long-term winter in low temperature environment, such as long-term sealing does not expose, easy to cause the greenhouse temperature and humidity, tobacco growth is not flourishing, or disease breeding, dead seedling serious. 1. Temperature regulation Winter temperature is low, the cover film is conducive to germination and growth. But the temperature should not be too high, the highest before germination does not exceed 28 ℃, above the limit will be exposed film cooling, or easy to burn buds