Effects of Warming Seedling Cultivation Technology on Growth, Yield and Quality of Fluecured Tobaccos

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%.

烟苗陶管增温壮苗培育试验初报

为改善烤烟育苗前期低温寡照天气对烟苗成苗的影响,提高壮苗培育水平,通过陶瓦火管空气加热方式,研究其对烟苗素质的影响。结果表明,与常规育苗方式相比,通过陶瓦火管对育苗棚进行供热,可将棚内温度提高3.8～5.6℃,苗池水温提高1.7～3.4℃,烟苗出苗提早10 d,成苗时间缩短15 d,进而可将烟苗移栽期提前两周左右。

秦巴山地烟区不同烤烟壮苗培育方式对比研究

[目的]分析秦巴山地烟区不同壮苗培育方式的优势、劣势和特点。[方法]从烤烟生产关注的不同生育期(苗期、伸根期、团棵期、旺长期、成熟期)的长势、整齐度、根系量、壮苗率、抗病抗逆性、最大叶面积、成熟落黄、上部叶开片和经济性状指标对营养袋育苗、直播漂浮育苗、双膜漂浮育苗、托盘育苗、湿润育苗5种育苗方式进行对比分析。[结果]秦巴山地烟区烤烟育苗方式及大田综合验证的表现排序为:湿润育苗>托盘育苗>双膜漂浮育苗>直播漂浮育苗>营养袋育苗。从集约化育苗、商品化供苗、大田抗病抗逆性及烟农收益看,优先选择湿润育苗方式,其次是双膜漂浮育苗,托盘育苗是散户补苗用苗培育的较好方式。[结论]该研究可为科学选择烤烟育苗方式提供数据支撑和试验依据。