| 摘要: |
| 【目的】探讨不同氯水平下烤烟的吸氯特性及纳米脱氯剂脱氯效果，为烤烟降氯探索可行性途径。【方法】以“中烟100”为供试材料，采用田间盆栽试验，研究不同氯水平下，高分子纳米脱氯剂处理烟叶氯含量的变化规律，分析氯水平与烟叶氯含量的关系。【结果】烟苗移栽后，过早添加脱氯剂会抑制烟株的生长发育，不利于烟株干物质的积累。从脱氯效果来看，脱氯剂添加后30 d，脱氯效果最佳，与同氯水平未添加脱氯剂处理相比，添加脱氯剂处理烤烟根、茎、叶的氯含量分别降低了24.14%~59.68%，3.33%~16.26%和6.65%~34.38%；全株氯积累量较同氯水平未添加脱氯剂的处理降低了41.94%~73.98%。未添加脱氯剂处理烟株根、茎、叶的含氯量极显著受施氯水平的影响，且随施氯水平的增加，烟株根、茎、叶的氯含量均呈线性或指数函数上升趋势，而添加脱氯剂处理烟株茎和叶的氯含量与施氯水平间的线性和指数函数关系均未达到显著水平。烟株移栽后30 d，植烟土壤氯含量差异显著，且表现为添加脱氯剂＞未添加脱氯剂处理。【结论】在烟苗移栽后30 d，施稀释浓度为0.5%的纳米脱氯剂1.5 mL/kg，可有效阻控烤烟对氯的奢侈吸收，进而降低烟叶中的氯含量。 |
| 关键词: 烤烟 施氯量 纳米脱氯剂 氯含量 氯积累量 |
| DOI： |
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| 基金项目:河南省烟草专卖局科技项目（HYKJ201303，HYKJ201403，HYKJZD201503）；中国烟草总公司科技项目（110201502013） |
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| Effects of nano-antichlor on growth and chlorine absorption of flue-cured tobacco under different chlorine levels |
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LI Liang,ZHANG Xiang,WANG Yaning,et al
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| Abstract: |
| 【Objective】The chlorine absorption and nano antichlor dechlorination under different chlorine levels were explored to provide possible method for chlorine reduction of flue cured tobacco.【Method】Zhongyan 100 was planted in pot and changes of chlorine content in tobacco leaves were studied under different chlorine and nano-antichlor levels.The relationships between chlorine levels and chlorine content in tobacco leaves were also analyzed.【Result】Adding nano-antichlor too early inhibited the growth and dry matter accumulation of tobacco.The best dechlorination effect occurred 30 days after nano antichlor addition,and the chlorine contents of root,stem and leaf were decreased by 24.14%－59.68%,3.33%－16.26% and 6.65%－34.38%,respectively,in comparison with the same chlorine level treatment without nano-antichlor.The chlorine accumulation of the whole plant was reduced by 41.94%－73.98% compared with the same chlorine level treatment without nano-antichlor.The chlorine contents in roots,stems and leaves of tobacco treated without nano-antichlor were significantly affected by chlorine level,and the chlorine contents in roots,stems and leaves were linearly or exponentially related with the increase of chlorine application,but no significant difference appeared in stems and leaves of treatments with nano antichlor.The soil chlorine contents were in the order of 0.5% antichor >no antichor 30 days after tobacco transplanting.【Conclusion】Application of 0.5% dechlorination agent at the rate of 1.5 mL/kg effectively block the extravagant absorption of flue-cured tobacco 30 days after tobacco transplanting and reduce the chlorine content in tobacco leaves. |
| Key words: flue-cured tobacco chlorine application nano-antichlor chlorine content chlorine accumulation |
