双膜单架移栽对高海拔烟区烤烟生长和经济效益的影响

摘要

为了解决湖北省鹤峰县高海拔烟区烟苗移栽后温度低、成活慢、抗逆性弱等烤烟生产问题，采用田间试验研究了双膜单架移栽方式对其烤烟生长和经济效益的影响。结果表明：1）采用双膜单架移栽的烟苗提前4 d 进入团棵期，采收结束期提早6 d，上等烟比例增加23百分点，均价提高1．65元/kg，产量增加208．5 kg/hm2，经济效益增加8308．6元/hm2。2）采用双膜单架移栽可提高烟苗移栽后的生长温度，使烟苗及时成活，烟叶长势好，叶斑病发病率降低，大田烟叶生长整齐一致，分层落黄明显，上部烟叶的赤星病斑明显减少，中上部烟叶的成熟度好，杂色少，后期烟叶的成熟度增加，烟叶内含物质的协调性较好，外观质量变好，产量明显增加。%The effects of double films with single frame transplanting pattern on tobacco growth,yield and quality were studied to solve problems of slow survival and weak stress resistance in tobacco cultivation area with high altitude of Hefeng County,Hubei.The results showed that:1)The resetting stage,harvest end stage,first-class tobacco proportion,yield and economic benefit of tobacco seedlings under double films with single frame transplanting pattern was 4d early,6d early,increased by 23%, 208.5kg/hm2 and 8 308.6 Yuan/hm2 compared with CK respectively;2)The double films with single frame transplanting pattern can increase growth temperature,promote seedlings survival and growth, improve disease resistance and tobacco quality significantly.