Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator <em>Sedum alfredii</em>

ZHANG Yuan－yuan; DOU Chun－ying; YAO Fang1; YE Zheng－qian

doi:10.11833/j.issn.2095-0756.2010.06.005

Volume 27 Issue 6

Dec. 2010

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ZHANG Yuan－yuan, DOU Chun－ying, YAO Fang1, YE Zheng－qian. Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii[J]. Journal of Zhejiang A&F University, 2010, 27(6): 831-838. doi: 10.11833/j.issn.2095-0756.2010.06.005

Citation:

ZHANG Yuan－yuan, DOU Chun－ying, YAO Fang1, YE Zheng－qian. Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii[J]. Journal of Zhejiang A&F University, 2010, 27(6): 831-838. doi: 10.11833/j.issn.2095-0756.2010.06.005

Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii

doi: 10.11833/j.issn.2095-0756.2010.06.005

1.
School of Environmental Sciencs and Technology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;
2.
Key Laboratory of Polluted Environment Remediation and Ecological Health of the Ministry of Education，College of Natural Resources and Environmental Science，Zhejiang University，Hangzhou 310029，Zhejiang，China;
3.
Agricultural Council of Ningguo City，Ningguo 242300，Anhui，China

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Corresponding author: YE Zheng－qian
Publish Date: 2010-12-20

Abstract

Two hydroponic culture experiments were conducted in a glasshouse to understand the effect of nitrogen （N） nutrition on growth and the zinc and cadmium （Zn/Cd） uptake by Zn/Cd hyperaccumulator Sedum alfredii. Results showed that both low（0.50 mmolL-1） and excessive（＞5.00 mmolL-1） supply of N impaired growth of plant dry matter and reduced plant uptake of Zn and Cd. By contrast，2.50 － 5.00 mmolL-1 of N improved plant growth，increased concentrations of Zn（to 12.00 gkg-1） and Cd （to 2.00 gkg-1） in the shoots，and enhanced partitioning of Zn and Cd from roots to shoots. Thus，to maximize heavy metal phytoremediation efficacy for Zn/Cd contaminated soils in the field，optimal N fertilization of S. alfredii is required.［Ch，1 fig. 4 tab. 15 ref.］
- soil science,
- nitrogen,
- Sedum alfredii,
- hyperaccumulator,
- zinc （Zn）,
- cadmium （Cd）

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii

1. School of Environmental Sciencs and Technology，Zhejiang A & F University，Lin’an 311300，Zhejiang，China;

2. Key Laboratory of Polluted Environment Remediation and Ecological Health of the Ministry of Education，College of Natural Resources and Environmental Science，Zhejiang University，Hangzhou 310029，Zhejiang，China;

3. Agricultural Council of Ningguo City，Ningguo 242300，Anhui，China

Corresponding author: YE Zheng－qian

Publish Date: 2010-12-20

Key words:

Abstract: Two hydroponic culture experiments were conducted in a glasshouse to understand the effect of nitrogen （N） nutrition on growth and the zinc and cadmium （Zn/Cd） uptake by Zn/Cd hyperaccumulator Sedum alfredii. Results showed that both low（0.50 mmolL-1） and excessive（＞5.00 mmolL-1） supply of N impaired growth of plant dry matter and reduced plant uptake of Zn and Cd. By contrast，2.50 － 5.00 mmolL-1 of N improved plant growth，increased concentrations of Zn（to 12.00 gkg-1） and Cd （to 2.00 gkg-1） in the shoots，and enhanced partitioning of Zn and Cd from roots to shoots. Thus，to maximize heavy metal phytoremediation efficacy for Zn/Cd contaminated soils in the field，optimal N fertilization of S. alfredii is required.［Ch，1 fig. 4 tab. 15 ref.］

Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii

doi: 10.11833/j.issn.2095-0756.2010.06.005

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Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii

doi: 10.11833/j.issn.2095-0756.2010.06.005

Corresponding author: YE Zheng－qian

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Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii

doi: 10.11833/j.issn.2095-0756.2010.06.005

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Nitrogen application to enhance zinc and cadmium uptake by the hyperaccumulator Sedum alfredii

doi: 10.11833/j.issn.2095-0756.2010.06.005

Corresponding author: YE Zheng－qian

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