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| 氮素水平对五味子幼苗生长的影响 | |
| 引用本文： | 徐海军,孙广玉,周志强,张悦.氮素水平对五味子幼苗生长的影响[J].国土与自然资源研究,2011(1):71-73. |
| 作者姓名： | 徐海军 孙广玉 周志强 张悦 |
| 作者单位： | 1. 东北林业大学生命科学学院,哈尔滨,150040;黑龙江省科学院自然与生态研究所,哈尔滨,150040 2. 东北林业大学生命科学学院,哈尔滨,150040 3. 东北林业大学森林植物生态学教育部重点实验室 4. 黑龙江省科学院自然与生态研究所,哈尔滨,150040 |
| 基金项目： | 黑龙江省科技厅攻关项目 |
| 摘 要： | 以2年生五味子苗未为试验材料,在田间条件下,施以不同水平的氮素,分析了叶片可溶性蛋白、叶绿素含量、根系及茎叶中全氮含量、生物量等季节的动态变化规律,探讨了不同氮素水平对五味子苗未生长的影响.结果表明:(1)随着供氮水平的增加五味子茎叶全氮含量、可溶性蛋白、叶绿素含量都呈先升高后下降的变化趋势,不同生长时期表现出的峰值不... |
| 关 键 词： | 五味子 氮素水平 生物量 可溶性蛋白 |
Effects of different nitrogen-levels on growth of Schisandra chinensis seedlings |
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| Institution: | XU Hai-jun et al(College of Life Sciences,Northeast Forestry University,Harbin 150040 China) |
| Abstract: | A field experiment was carried out to investigate the effects of different nitrogen（N）-levels on growth of Schisandra chinensis seedlings.The soluble protein content,chlorophyll concentration,whole nitrogen content in root,stem and leaves,and the seasonal regulation of biomass accumulation and distribution were analyzed on 2-year-old Schisandra chinensis seedlings.The results showed that：（1） Along with increase of nitrogen levels provided,content of total-N,soluble protein and chlorophyll in stems and leaves of Schisandra chinensis start to increase and then decrease,and peak values showed in different growth period are different.During the complete process of growth,all indicators kept lower levels under treatment provided without nitrogen.（2） Different nitrogen levels have significant influence on biomass accumulation of Schisandra chinensis（p0.05）.Biomass aboveground increases as nitrogen level increases.Maximal biomass accumulation arises at 200kg.ha-1（N4） of nitrogen level provided.It is best for assimilation products transferred to aboveground at 200kg.ha-1（N4） of nitrogen level,also best for biomass accumulation. |
| Keywords: | Schisandra chinensis nitrogen levels biomass soluble protein |
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