地膜覆盖是解决无霜期短和栽烟期雨量偏少,提高烟株成活率,延长田间生育期,加速烟株生长,提高产量和品质的重要措施。 1.整地起垄 把烟田整好,做到土细、土虚、无坷垃、无根茬。按坡向起垄,一般垄高13～15厘米,底宽50～60厘米,顶宽 Film mulching is an important measure to solve the problem of short frost-free period and less rainfall at planting period, to improve the survival rate of tobacco plants, to extend the growth period in the field, to accelerate the growth of tobacco plants, and to improve the yield and quality. 1. The whole ridge Ridge tobacco fields to be fine, so fine soil, soil virtual, no buns garbage, stubble. Ridge according to the slope, the general ridge height of 13 to 15 cm, the bottom width of 50 to 60 cm, the top width