摘要
为探讨烤烟涝害救治施肥技术问题,采用盆栽试验方法研究土壤渍水下不同形态氮源对烤烟生长的影响。结果表明:在不同氮源营养条件下,烤烟对土壤渍害的反应明显不同,排水后恢复生长的能力也不同。烤烟受渍后株高、单株叶面积、心叶延伸速率、叶片N含量、生物产量均明显降低。1/2NH4+-N+1/2NO3--N营养的植株单株叶面积、心叶生长率速率、生物产量均高于单一NH4+-N营养和单一NO3--N营养。增铵营养使烤烟生长对渍害的敏感性有所提高。3种氮源下,均是叶生长对渍害最敏感,其次是茎,根系生长对渍害反应相对钝感。
In order to study the problem of fertilization technology for treatment of the waterlogging flue-cured tobacco,the pot experiment was adopted to study the effects of different N source on growth of flue-cured tobacco under soil waterlogging in 2010.The results showed that soil waterlogging markedly lowered the plant height,the individual green leaf area,the growing rate of central leaf,the leaf N content and biomass.On any condition,the in green leaf area of flue-cured tobacco in condition of 1/2NH4＋-N＋1/2NO3--N,its growing rate of central leaf and its biomass were greater than those of NO3--N and those of NH4＋-N.The addition of NH4＋ nutrition seems to enhance the sensitivity of flue-cured tobacco growth.The sensibility of different organ in flue-cured tobacco plant to soil water logging were different：leaf stem root.
出处
《中国农学通报》
CSCD
2013年第7期133-137,共5页
Chinese Agricultural Science Bulletin
基金
国家烟草专卖局重大科技项目"耐低温抗早花烤烟新品种选育及遗传生理机理研究"(110200902043)
广东省烟草专卖局(公司)资助项目"广东浓香型特色优质烟叶开发"(201101)
广东省烟草专卖局(公司)资助项目"基于高频光谱烤烟品质形成的生物信息采集及其应用"(201001)
广东省烟草专卖局(公司)资助项目"基于近红外光谱的烤烟精准水肥管理技术研究与示范"(200820)
广东中烟有限责任公司资助项目"广东‘双喜’品牌导向基地烤烟成熟度调控技术及其管理模式研究与应用"[粤烟工05XM-QK(2010)025]
关键词
土壤渍水胁迫
烤烟
氮源
生物产量
soil waterlogging stress
flue-cured tobacco
N source
biomass
