| 不同施氮量对烟叶含钾量的影响 |
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| 引用本文： | 杨志新,温永琴,罗济,罗鹏涛,程辉斗.不同施氮量对烟叶含钾量的影响[J].烟草科技,2001(7):36-38. |
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| 作者姓名： | 杨志新 温永琴 罗济 罗鹏涛 程辉斗 |
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| 作者单位： | 云南农业大学烟草种植技术学院,650201,昆明市北郊黑龙潭 |
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| 基金项目： | 本文为程辉斗先生主持的云南省烟草公司"八五"重点资助项目"云南烤烟低钾原因及提高途径研究"的组成部分. |
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| 摘 要： | 在施纯氮分别为90kg/hm2、120kg/hm2、150kg/hm2、180kg/hm2条件下对烟叶含钾量的影响作了研究.结果表明①随着氮素水平的提高,烟叶中K2O含量呈升高的趋势;②烟叶K2O含量随叶位的升高逐渐减少;③在一定范围内提高施氮量能增加烟叶产量,提高烟叶等级,但施氮量超过150kg/hm2则会使烟叶的质量明显下降;④土壤供钾水平不是造成云南烟叶含钾量低的主要原因.
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| 关 键 词： | 氮 烤烟 钾 农艺性状 |
| 文章编号： | 1002-0861(2001)07-0036-03 |
Effect of Different Nitrogen Supply on Potassium Content of Tobacco Leaf |
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| YANG Zhi\|xin,WEN Yong\|qin,LUO Ji,LUO Peng\|tao,CHENG Hui\|dou.Effect of Different Nitrogen Supply on Potassium Content of Tobacco Leaf[J].Tobacco Science & Technology,2001(7):36-38. |
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| Authors: | YANG Zhi\|xin WEN Yong\|qin LUO Ji LUO Peng\|tao CHENG Hui\|dou |
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| Abstract: | The effects of N applied levels of 90kg/ha, 120kg/ha, 150kg/ha, 180kg/ha on the potassium contents of tobacco leaves were studied. The results showed that:1)the potassium contents of tobacco leaves was increased with enhancing the levels of N applied, and gradually decreased with higher stalk position.2)in range of N rates from 90kg/ha to 150kg/ha, the yields and quality of flue\|cured tobacco could be increased with higher nitrogen levels; and over 150kg/ha, the quality was significantly decreased.3)the supply of potassium in soil wasn't main reason for low potassium contents of flue\|cured tobacco leaves in Yunan. |
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| Keywords: | Nitrogen Flue\|cured tobacco Potassium Agronomic character |
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