遮阳网覆盖时间对烤烟出苗及死苗率的影响  

The Influence of Shading-nets Covered Time on Tobacco Budding and Dead Seedling Rate

作　　者：吴涛[1] 晋艳[1] 杨宇虹[1] 杨焕文[2] 

机构地区：[1]云南省烟草科学研究所,云南玉溪653100 [2]云南农业大学烟草学院,云南昆明650201

出　　处：《云南农业大学学报》2007年第4期611-614,共4页Journal of Yunnan Agricultural University

基　　金：云南省烟草公司科技资助项目(03A07)。

摘　　要：研究了烤烟漂浮育苗出苗期,每天不同的遮阳网覆盖时间处理对出苗过程的影响。结果表明,遮阳网覆盖时间与烤烟出苗效果成正相关,覆盖时间越长、遮阳条件越充分,育苗棚内温度变化越小,出苗越快、出苗整齐度越高。同时发现,遮阳网覆盖处理的降温效应有助于减轻育苗盘表基质盐渍化的程度,从而使死苗率明显下降。During the budding time of floating system, the influence of different shading-nets covered time per day to tobacco budding is studied in this paper. It＇ s showed that shading-nets covered time is positive proportion to the budding effection, the longer covered time is, the smaller temperature change of cultivating cote is, and the more tobacco budding outcome is, at the same time, the temperature dropping effection of shading-nets covered treatmentsis is helpful to alleviate the over-salted of cultivating tray and to reduce the dead seedling rate.

关 键 词：遮阳网 烤烟 出苗 死苗率 

分 类 号：S572.043[农业科学—烟草工业]