| 镉锌复合污染对芹菜养分吸收的影响 |
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| 引用本文： | 马兰,张宝莉,张华,王智超.镉锌复合污染对芹菜养分吸收的影响[J].燕山大学学报,2008,32(6). |
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| 作者姓名： | 马兰 张宝莉 张华 王智超 |
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| 作者单位： | 中国农业大学,资源与环境学院,北京,100094 |
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| 摘 要： | 用水培试验研究不同浓度下Cd、Zn单一及复合污染对芹菜吸收营养元素(N、P、K、Fe)的影响.结果表明:Cd、Zn单一污染下,茎叶中粗蛋白和元素P的含量没有显著变化;Cd在一定程度上促进了茎叶对K的吸收,Zn抑制了茎叶对元素K的吸收;高浓度的Cd(8 mg/L)和Zn(500 mg/L),均显著地促进了茎叶对元素Fe的吸收,分别为对照值的1.3倍和1.5倍.而Cd、Zn复合污染对营养元素的吸收存存复杂的影响:茎叶中P的含量没有显著变化;Cd在一定程度上促进了茎叶对K的吸收,Zn抑制了茎叶对元素K的吸收;Cd和Zn均不同程度地促进了芹菜茎叶对Fe的吸收.
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| 关 键 词： | 养分吸收 水培 重金属 |
Effection of Cd and Zn complex-pollution on nutrient absorption of celery |
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| MA Lan,ZHANG Bao-li,ZHANG Hua,WANG Zhi-chao.Effection of Cd and Zn complex-pollution on nutrient absorption of celery[J].Journal of Yanshan University,2008,32(6). |
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| Authors: | MA Lan ZHANG Bao-li ZHANG Hua WANG Zhi-chao |
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| Institution: | MA Lan1,ZHANG Bao-li1,ZHANG Hua1,WANG Zhi-chao1 (1. College of Resources , Environment,China Agriculture University,Beijing 100094,China) |
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| Abstract: | Hydroponic experiments were conducted to study the effect of various Cd or Zn heavy metal pollutant substrates on the nutrient elements(N, P, K and Fe), in stems and leaves of celery. The main results were as follows: neither Cd nor Zn made a significant change in the absorption of P; Cd improved the absorption of K to some extent, while Zn depressed the absorption of K; both Cd (8 mg/L) and Zn (500 mg/L) promoted the absorption of Fe obviously, is 1.3 and 1.5 times to the contrast. The effect of the combin... |
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| Keywords: | Cd Zn |
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