| 烟-稻复种连作年限对土壤理化性状及烟叶产量与品质的影响 |
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| 引用本文： | 向鹏华,单雪华,黄银章,郭维,龙世平.烟-稻复种连作年限对土壤理化性状及烟叶产量与品质的影响[J].中国土壤与肥料,2016(5):105-109. |
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| 作者姓名： | 向鹏华 单雪华 黄银章 郭维 龙世平 |
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| 作者单位： | 1. 湖南省烟草公司衡阳市公司,湖南 衡阳,421001;2. 湖南省农业科学院农业生物资源利用研究所,湖南 长沙,410125 |
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| 基金项目： | 湖南连作和新垦植烟土壤质量提升机理研究及技术应用(14－16ZDAa01)。 |
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| 摘 要： | 为探明长期烟-稻复种连作对烟田土壤理化性状及烟叶产量与品质的影响,在衡阳烟区烟-稻复种连作区采取了不同复种年限的土样和当季烟叶样品,检测了土壤p H值、有机质及速效养分含量、中微量元素含量以及烟叶产量和烟叶主要化学成分含量等指标的变化。结果表明,适度的烟-稻复种连作(≤7年)可较好的协调土壤p H值,不仅对烟叶产量和产值无显著影响,而且使烟叶中糖碱比和钾氯比协调合理,品质趋好。而当连作超过10年后,土壤明显酸化,烟叶产量、产值也显著下降,可考虑通过绿肥轮作、休耕等措施提升土壤质量。
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| 关 键 词： | 烟-稻复种 连作年限 土壤养分 烟叶产量 化学成分 |
| 收稿时间： | 2015/7/17 0:00:00 |
| 修稿时间： | 2015/11/22 0:00:00 |
Effects of tobacco rice continuous cropping years on soil physicochemical properties and tobacco yield and quality |
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| Abstract: | To investigate the effects of long term tobacco-rice continuous cropping on soil nutrients and flue-cured tobacco leaf yield and quality, the soils of different continuous cropping years were collected in tobacco-rice multiple system of Hengyang. Some important indexes, including pH, contents of organic matter and available nutrients of NPK, contents of medium trace elements of soil samples, and contents of main chemical components of flue-cured tobacco samples were detected for further an-alyzing. The results showed that pH value of moderate continuous cropping soil (≤7 years) was more coordinated, in addi-tion, leaf yield and quality of flue-cured tobacco were contained, the sugar-nicotine ratio and potassium-chlorine ratio were proper. However, under long-term continuous cropping (≥10 years) condition, the soil acidification was obvious, and yield and benifit of flue-cured tobacco declined. It was suggested that planting green manure or keeping fallow to improve soil quality after continuous cropping 7 years in tobacco-rice system. |
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| Keywords: | tobacco-rice continuous cropping continuous cropping years soil nutrients leaf yield chemical component |
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