我国烤烟生产区分布广泛,种植制度和农业生产体系复杂,由于茬口和天气条件的关系,移栽期也较为复杂,河南、山东等烟区大多数在5月上旬移栽,5月中、下旬进入雨季,5～8月平均温度在20℃左右,这段时间最适合烤烟的生长和叶片的成熟,因此,5月初的抗旱移栽是夺取烟叶优质高产的关键 China’s flue-cured tobacco production area is widely distributed. The planting system and agricultural production system are complex. Due to the relationship between stubble and weather conditions, the transplanting period is also quite complicated. Most tobacco-growing areas in Henan and Shandong are transplanted in early May and mid-May Into the rainy season, May to August the average temperature of about 20 ℃, this time is most suitable for the growth of flue-cured tobacco and leaf maturity, so drought-resistant transplanting in early May to seize the key to high-yield tobacco is the key