| 水分及铵、硝营养对水稻幼苗氮素吸收的影响 |
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| 引用本文： | 柏彦超,王娟娟,倪梅娟,史春霞,周明耀,钱晓晴.水分及铵、硝营养对水稻幼苗氮素吸收的影响[J].植物营养与肥料学报,2008,14(1):184-188. |
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| 作者姓名： | 柏彦超 王娟娟 倪梅娟 史春霞 周明耀 钱晓晴 |
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| 作者单位： | 1.扬州大学环境科学与工程学院,江苏扬州 225009; |
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| 基金项目： | 国家自然科学基金
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江苏省自然科学基金 |
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| 摘 要： | 采用5% PEG模拟水分胁迫，研究武育粳3号水稻幼苗生长状况以及在水分胁迫下对不同NH4+-N / NO3--N质量比例（100/0、75/25、50/50、25/75、0/100）处理的响应。结果表明，模拟水分胁迫后水稻幼苗生长对不同的NH4+-N/NO3--N处理反应不同，水稻对NH4+-N和NO3--N的吸收发生显著改变，水稻幼苗更偏向于吸收NO3--N营养，与正常水分处理相比其对总氮和NO3--N的吸收量显著增加。
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| 关 键 词： | 水分胁迫 水稻 氮素营养 |
| 文章编号： | 1008-505X（2008）01-0184-05 |
| 收稿时间： | 2006-10-19 |
| 修稿时间： | 2007-05-12 |
Effect of water and nitrogen nutrition on nitrogen absorption of rice |
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| BAI Yan-chao,WANG Juan-juan,NI Mei-juan,SHI Chun-xia,ZHOU Ming-yao,QIAN Xiao-qing.Effect of water and nitrogen nutrition on nitrogen absorption of rice[J].Plant Nutrition and Fertilizer Science,2008,14(1):184-188. |
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| Authors: | BAI Yan-chao WANG Juan-juan NI Mei-juan SHI Chun-xia ZHOU Ming-yao QIAN Xiao-qing |
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| Institution: | 1.Institute of Environmental Science and Engineering,Yangzhou University,Yangzhou 225009,China; |
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| Abstract: | A solution cultivation experiment was carried out to study the growth of rice seedling under simulated water stress condition(5% Polyethylene glyid,PEG) and the effects of mixed nitrogen nutrition with different ratios of NH 4N/NO-3-N(100/0,75/25,50/50,25/75,0/100) on nitrogen uptake of rice in water stress condition(5%PEG).The results showed that the responses of different NH 4N/NO-3-N ratios to the growth of rice seedling varied under simulating water stress.The absorption of NH 4-N and NO-3-N changed significantly under simulated water stress condition. Compared with non-stress condition,rice took up more NO-3N under simulated water stress condition. |
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| Keywords: | water stress rice nitrogen nutrition |
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