摘要
An experiment of seedling nursing which used film mulching technology in greenhouse to increase temperature was carried out in the south of Hunan province in 2014. The results showed that the average surface temperature of seedling tray and the average water temperature of nursing pool at 10：00 and 16：00 in treatment1 which used film mulching technology in a greenhouse were higher than that of CK（no film mulching）, suggesting the warming effect of mulching film in a greenhouse is obvious. The growth potential of tobacco seedling is stronger in treatment1 than CK, and tobacco seedling quality index including the fresh and dry weight of stem, leaves and roots increased. Plant height, stem girth and leaves area of the treatment 1 were higher and more than that of CK after transplanting. Squaring,topping and maturity period were slightly earlier in the treatment 1, compared with that of CK. Average yield of treatment 1 was 2 308.8 kg/hm^2, which increased by6.03% and was significantly higher than that of CK,and the output value of the treatment 1 was 50 184.75 yuan/hm^2, which increased by 5.61%.
2014年,在湘南烟区开展了烤烟工厂化育苗大棚套小棚膜增温育苗技术研究,结果表明:棚内10点和16点时段盘面和育苗池水体平均温度,大棚盖小棚膜处理均高于对照,增温效果好;烟苗生长势较强,其烟苗素质指标中的茎叶和根系的鲜重与干重均有增加;移栽到大田后,株高、茎围、叶面积等主要农艺性状指标比对照均有所增加,现蕾期和打顶期及成熟期略有提早;盖小棚膜处理平均产量为2 308.8 kg/hm2,比对照显著增产6.03%,平均产值为50 184.75元/hm2,比对照增加2 667.42元/hm2,增加5.61%。
