烟草重茬地土壤植烟障碍研究进展
摘要 烟草是忌连作的作物，然而由于宜烟土地面积的有限性，全国大部分主产烟区的烟叶生产不可避免地长期存在着烟田连作现象，严重影响了烟草的生产。从土壤养分失衡、土壤微生物区系变化、作物的化感自毒作用3个方面分析了烟草产生连作障碍的原因，并总结了重茬地主要的植烟障碍，提出了土壤改良、生物防治、选育抗性品种等防治方法，以期为烟叶可持续生产提供理论和实践指导。
关键词 烟草；重茬；连作障碍；植烟障碍；研究进展
中图分类号 S572 文献标识码 A 文章编号 1007-5739（2016）01-0015-03
The Research Status on Continuous Cropping Obstacles in Tobacco
CHEN Yan-chun 1 LI Zhi-xin 2 HU Jun 1 JI Xiao-ling 3 CHEN De-xin 3 *
（1 Sanmenxia Branch of Henan Tobacco Companies，Sanmenxia Henan 472000； 2 Mianchi Branch of Sanmenxia Tobacco Companies；
3 Institute of Tobacco Research of CAAS）
Abstract Tobacco is a crop that can not be consecutive monoculture，but due to the limited land area for planting tobacco，there is a inevitably phenomenon of consecutive monoculture on tobacco production in most main tobacco region and it seriously affected the tobacco industry. Three reasons of consecutive monoculture problems were analyzed from soil nutrient imbalance，changes of soil microbial flora，self toxic effects of crops and the most planting tobacco problems in continous planting area were analyzed. Soil improvement，biological control，breeding resistant varieties et al were proposed，in order to provide theoretical and practical guidance for the sustainable production of tobacco.
Key words tobacco；consecutive monoculture；consecutive monoculture problem；planting tobacco problem；research status
重茬也叫连作，是指一年或连年在同一块地连续种植同一种或同一科作物的栽培方式。作物的连作障碍也称再植病害（Replant disease）、再植问题（Replant problem）[1-2]或重茬问题[3]，是指在正常的管理方式下，...
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