| 不同施氮水平对烤烟农艺性状、产量及叶绿素含量的影响 |
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| 引用本文： | 师进霖,姜跃丽,张辉.不同施氮水平对烤烟农艺性状、产量及叶绿素含量的影响[J].广西农业科学,2009,40(12):1582-1585. |
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| 作者姓名： | 师进霖 姜跃丽 张辉 |
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| 作者单位： | 玉溪农业职业技术学院,云南玉溪,653106 |
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| 摘 要： | 以烤烟品种K326为材料,采用单因素随机区组设计,研究不同施氮量（0、27.0、54.5、81.8、109.0kg/ha）对烤烟农艺性状、产量和叶绿素含量的影响,探讨大田条件下烤烟的最佳施氮量。结果表明,随着施氮量的增加,烤烟最大叶面积、株高、产量、叶绿素含量均呈增加趋势,但施氮量达到一定限度时,产值、均价、上等烟比例、中上等烟比例均呈下降趋势;在玉溪地区农田生态条件下,兼顾烟叶产量、产值及其工业可用性,施氮量以81.8kg/ha纯N为宜。
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| 关 键 词： | 烤烟 施氮量 农艺性状 产量 叶绿素含量 |
Effects of different nitrogen application rate on agronomic traits, yield and chlorophyll content in flue-cured tobacco |
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| SHI Jin-lin,JIANG Yue-li,ZHANG Hui.Effects of different nitrogen application rate on agronomic traits, yield and chlorophyll content in flue-cured tobacco[J].Guangxi Agricultural Sciences,2009,40(12):1582-1585. |
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| Authors: | SHI Jin-lin JIANG Yue-li ZHANG Hui |
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| Institution: | (Yuxi Agriculture Vocation-Technical College,Yuxi,Yunnan 653106,China) |
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| Abstract: | The present study was conducted to study the effects of different nitrogen rate（0,27.0,54.5,81.8,109.0 kg / ha） on agronomic traits,yield and chlorophyll content in flue-cured tobacco strain K326 under field conditions.The experiment was performed in randomized block design.The results showed an increase in the max leaf area,plant height,yield and chlorophyll content with increasing the nitrogen application rate,the critical N application rate was found to be 81.8 kg / ha,beyond which the yield,output value,average price,proportion of first-class tobacco leaf and proportion of first-class and middle tobacco leaf showed decreasing trend.Therefore,applying 81.8 kg / ha pure N under the field condition of Yuxi district may be recommended to get the best output. |
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| Keywords: | flue-cured tobacco nitrogen rate agronomic traits yield chlorophyll |
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