摘要
肥料施用时期对烟株养分积累规律影响很大,氯是烤烟生长发育过程中较为敏感的元素,对烟叶品质影响明显。采用田间试验,研究了烤烟生长期间氯肥施用时期对烟株氯积累规律以及烤后烟叶化学成分的影响。结果表明,与基施氯肥相比,团棵期浇施氯肥推迟了烟株对氯的吸收,烟株前期对氯吸收缓慢,吸收高峰推迟出现,减少了下部叶的氯含量、积累量和氯分布量,提高了中部叶的氯含量、积累量和分布量;到采收结束时,两处理整株烟株氯含量、积累量和积累速率差异不明显;两处理烤后烟叶总植物碱含量、总氯含量和钾/氯比等化学成分均在优质烟适宜范围内。在团棵期浇施氯肥更符合烤烟生长发育规律,对下部烟叶氯含量影响更有利。
Effects of chlorine applying time on chlorine accumulation and chemical component in flue-cured tobacco were examined.The results showed that：comparing with basal applying chlorine,watering chlorine fertilizer at the end of root elongation stage deferred the chlorine absorption in tobacco,decreased the chlorine content,accumulation and distribution in lower leaves,and increased them in middle leaves;At final harvest,there weren＇t obvious difference between two treatments in chlorine content,accumulation amount and speed;Total alkaloids content,total chlorine content and ratio of potassium to chlorine in flue-cured leaves of two treatments were in appropriate range.It was more accordant with the disciplinarian of tobacco growth and in favor of chlorine content of lower leaves as watering chlorine fertilizer at the end of root elongation stage.
出处
《中国农学通报》
CSCD
北大核心
2009年第17期149-152,共4页
Chinese Agricultural Science Bulletin
基金
福建省烟草专卖局项目(闽烟合同[2009]7号)
关键词
烤烟
氯
施肥时期
物质积累
flue-cured tobacco
chlorine
fertilizer date
material accumulation
