| 不同生育时期分根区交替灌溉对烤烟生长和氮钾含量的影响 |
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| 引用本文： | 刘永贤,李伏生,农梦玲,韦建玉,汪加林.不同生育时期分根区交替灌溉对烤烟生长和氮钾含量的影响[J].灌溉排水学报,2007,26(6):102-105,109. |
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| 作者姓名： | 刘永贤 李伏生 农梦玲 韦建玉 汪加林 |
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| 作者单位： | 广西大学,农学院,南宁,530005 |
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| 基金项目： | 广西中烟工业公司合作项目(桂烟工企2005-5)，国家自然科学基金重点项目(50339030) |
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| 摘 要： | 通过盆栽试验研究了在2种施肥条件下,不同生育时期分根区交替灌溉(APRI)对烤烟生长、干物质积累与分配以及烟叶氮(N)、钾(K)含量的影响。结果表明,伸根期和成熟期APRI不但对烤烟植株有明显的增高作用,而且能显著提高烟叶中N、K含量。与常规灌溉(CI)相比,低肥时伸根期和成熟期APRI的株高、烟叶N含量、K含量分别提高5.19%、9.16%、6.42%和14.02%、28.03%、28.13%;高肥时分别提高9.11%、23.71%、18.75%和16.55%、38.57%、50.84%。可见在较高肥条件下,烤烟伸根期和成熟期进行分根区交替灌溉是烟叶适产优质生产中一种较好的水分调控方式。
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| 关 键 词： | 烤烟 分根区交替灌溉 氮 钾 生育时期 |
| 文章编号： | 1672-3317（2007）06-0102-04 |
| 收稿时间： | 2006-11-29 |
| 修稿时间： | 2006年11月29 |
Effects of Alternate Partial Root-zone Irrigation on Growth and Nutrient Content of the Flue-cured Tobacco during Different Growth Period |
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| LIU Yong-xian,LI Fu-sheng,NONG Meng-ling,WEI Jian-yu,WANG Jia-lin.Effects of Alternate Partial Root-zone Irrigation on Growth and Nutrient Content of the Flue-cured Tobacco during Different Growth Period[J].Journal of Irrigation and Drainage,2007,26(6):102-105,109. |
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| Authors: | LIU Yong-xian LI Fu-sheng NONG Meng-ling WEI Jian-yu WANG Jia-lin |
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| Abstract: | Under two different fertilization levels,effects of alternate partial root-zone irrigation(APRI) on growth,dry mass accumulation and distribution,N and K content of flue-cured tobacco during different growth stages were studied using pot experiment.Results show that APRI in the root development and maturing stages of tobacco significantly increase plant height and leaf nitrogen(N) and potassium(K) contents.Compared to conventional irrigation(CI), APRI treated during root development and maturing stages of tobacco increases the plant height,leaf N and K contents by 6.42%,14.02%,5.19% and 9.16%,28.03%,28.13% under lower fertilization,and by 9.11%,23.71%,18.75% and 16.55%,38.57%,50.84% under higher fertilization,respectively.Thus APRI treated in the root developing and maturing stages is an efficient irrigation method for tobacco production with proper yield and higher quality under higher fertilization. |
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| Keywords: | flue-cured tobacco alternate partial root-zone irrigation nitrogen potassium growth period |
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