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NaCl胁迫下氮形态对水稻幼苗营养的影响
引用本文:杜洪艳,白寅,柏彦超,蔡树美,沈淮东,钱晓晴.NaCl胁迫下氮形态对水稻幼苗营养的影响[J].江西农业学报,2008,20(7):7-9.
作者姓名:杜洪艳  白寅  柏彦超  蔡树美  沈淮东  钱晓晴
作者单位:扬州大学,环境科学与工程学院,江苏,扬州,225009
基金项目:国家自然科学基金 , 江苏省自然科学基金
摘    要:在NaCl浓度为0、43、86mmol/L条件下,研究了水培水稻幼苗对不同质量比例(9/1、5/5和1/9)铵态氮/硝态氮处理的响应特征。结果表明:在3种盐浓度条件下,水稻幼苗均在NH4^+-N/NO3^--N为1/9时生长量最少,吸收氮素最少,培养后营养液pH最高;NaCl浓度为0和86 mmol/L时,NH4^+-N/NO3^--N为1/9处理的植株吸磷量最少。

关 键 词:氮形态  NaCl胁迫  营养  水稻  幼苗

Effects of N Form on Nutrition of Rice Seedlings under NaCl Stress
DU Hong-yan,Bai Yin,Bai Yan-chao,Cai Shu-mei,SHEN Huai-dong,QIAN Xiao-qing.Effects of N Form on Nutrition of Rice Seedlings under NaCl Stress[J].Acta Agriculturae Jiangxi,2008,20(7):7-9.
Authors:DU Hong-yan  Bai Yin  Bai Yan-chao  Cai Shu-mei  SHEN Huai-dong  QIAN Xiao-qing
Institution:DU Hong-yan, BAI Yin, BAI Yan-chao, CAI Shu-mei, SHEN Huai-dung, QIAN Xiao - qing (College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, China)
Abstract:A solution cultivation experiment,with NaCl concentration 0,43,86 mmol/L,was conducted under different ratios of NH 4-N to NO-3-N(9/1,5/5 and 1/9) to evaluate the effects of mixed nitrogen nutrition on growth and nutrition character of rice seedings cultivated under salt stress condition.The results obtained were as follows: the rice seedings grew the least,took up the least nitrogen and the pH-value of the solution after culture was the highest when the ratio of NH 4-N to NO-3-N was 1/9 under three salt concentration conditions.The rice seedlings in treatment of NH 4-N/NO-3-N being 1/9 took up the least phosphorus under NaCl concentration of 0 and 86 mmol/L.
Keywords:Nitrogen form  NaCl stress  Nutrition  Rice  Seedling
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