| 作物品种和化学固定剂对玉米谷物中镉和锌积累的影响 |
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| 作者姓名： | GUO Xiao-Fang WEI Ze-Bin WU Qi-Tang QIU Jin-Rong ZHOU Jian-Li |
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| 作者单位： | Key Laboratory of Ecological Agriculture of Ministry of Agriculture of China, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 (China);Key Laboratory of Ecological Agriculture of Ministry of Agriculture of China, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 (China);Key Laboratory of Ecological Agriculture of Ministry of Agriculture of China, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 (China);South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655 (China);College of Agriculture, Yangtze University, Jingzhou 434025 (China) |
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| 基金项目： | Supported by the National Natural Science Foundation of China (Nos.40801115 and 41071306); the Science and Technology Planning Project of Guangdong Province,China (Nos.2007A032303001,2009B030802016 and 2010B031800006) |
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| 摘 要： | A field experiment was conducted to investigate the effects of soil amendments(lime,nano-Si foliar solution and used diatomite) on the growth and metal uptake of three maize(Zea mays L.) cultivars grown in a Cd and Zn-contaminated acidic soil.The addition of lime significantly increased the maize grain yields and decreased the concentrations of Zn and Cd in the grains and shoots of maize when compared with the control.Among the three maize cultivars,Yunshi-5 accumulated the lowest amounts of Cd and Zn in the grain.The concentrations of Zn and Cd in the grain of Yunshi-5 conformed to the Chinese feed standards.These data revealed that a combination of low metal-accumulating maize and chemical fixation could effectively provide a barrier to prevent metals from entering the human food chain.
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| 关 键 词： | grain yield heavy metal low metal-accumulating cultivar Zea mays L. |
| 收稿时间： | 12 January 2011 |
Cadmium and Zinc Accumulation in Maize Grain as Affected by Cultivars and Chemical Fixation Amendments |
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| GUO Xiao-Fang,WEI Ze-Bin,WU Qi-Tang,QIU Jin-Rong,ZHOU Jian-Li.Cadmium and Zinc Accumulation in Maize Grain as Affected by Cultivars and Chemical Fixation Amendments[J].Pedosphere,2011,21(5):650-656. |
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| Authors: | GUO Xiao-Fang WEI Ze-Bin WU Qi-Tang QIU Jin-Rong and ZHOU Jian-Li |
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| Institution: | Key Laboratory of Ecological Agriculture of Ministry of Agriculture of China, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 (China);Key Laboratory of Ecological Agriculture of Ministry of Agriculture of China, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 (China);Key Laboratory of Ecological Agriculture of Ministry of Agriculture of China, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642 (China);South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655 (China);College of Agriculture, Yangtze University, Jingzhou 434025 (China) |
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| Abstract: | A field experiment was conducted to investigate the effects of soil amendments (lime, nano-Si foliar solution and used diatomite) on the growth and metal uptake of three maize (Zea mays L.) cultivars grown in a Cd and Zn-contaminated acidic soil. The addition of lime significantly increased the maize grain yields and decreased the concentrations of Zn and Cd in the grains and shoots of maize when compared with the control. Among the three maize cultivars, Yunshi-5 accumulated the lowest amounts of Cd and Zn in the grain. The concentrations of Zn and Cd in the grain of Yunshi-5 conformed to the Chinese feed standards. These data revealed that a combination of low metal-accumulating maize and chemical fixation could effectively provide a barrier to prevent metals from entering the human food chain. |
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| Keywords: | grain yield heavy metal low metal-accumulating cultivar Zea mays L |
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