| 不同灌溉方式对水稻根系生长的影响 |
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| 引用本文： | 徐芬芬,曾晓春,石庆华,叶利民.不同灌溉方式对水稻根系生长的影响[J].干旱地区农业研究,2007,25(1):102-104. |
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| 作者姓名： | 徐芬芬 曾晓春 石庆华 叶利民 |
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| 作者单位： | 1. 上饶师范学院,生命科学系,江西,上饶,334001
2. 江西农业大学,农学院,南昌,330045 |
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| 摘 要： | 采用根箱试验研究了间歇灌溉与淹灌两种灌溉方式对汕优10号根系生长的影响.结果表明,间歇灌溉处理具有更高的根系活力,较高的根系生物量和较深的根层分布,抽穗以后土表10 cm以下根系生物量比例高于淹灌处理.这可能是间歇灌溉条件下,稻株氮素吸收及利用率增强,后期干物质积累及产量提高的重要生理原因.
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| 关 键 词： | 水稻 间歇灌溉 根系分布 根系活力 |
| 文章编号： | 1000-7601（2007）01-0102-03 |
| 修稿时间： | 2005-10-08 |
Effects of different irrigation patterns on the growth of rice root |
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| XU Fen-fen,ZENG Xiao-chun,SHI Qing-hu,YE Li-min.Effects of different irrigation patterns on the growth of rice root[J].Agricultural Research in the Arid Areas,2007,25(1):102-104. |
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| Authors: | XU Fen-fen ZENG Xiao-chun SHI Qing-hu YE Li-min |
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| Institution: | 1. Key laboratory of Crop Physiology, Ecology and Crop Genetic Breeding, Jiangxi Province ; College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China ; 2. Department of Life Science, Shangrao Teachers college, Shangrao 334000, China |
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| Abstract: | Rice root growth under intermittent and flooded irrigation conditions was studied based on a root-box experiment.The result showed that rice in intermittent irrigation had higher root activity,more root biomass,deeper root distribution and more root biomass in the lower 10 cm soil layer after heading stage than in flooded irrigation.This might be one of the important physiological causes leading to high N absorption,dry matter accumulation and yield in intermittent irrigation treatment. |
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| Keywords: | rice intermittent irrigation root attribution root activity |
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