Cadmium and Zinc Accumulation in Maize Grain as Affected by Cultivars and Chemical Fixation Amendments

被引：40

作者：

Guo Xiao-Fang ^{[1
]}

Wei Ze-Bin ^{[1
]}

Wu Qi-Tang ^{[1
]}

Qiu Jin-Rong ^{[2
]}

Zhou Jian-Li ^{[3
]}

机构：

[1] S China Agr Univ, Key Lab Ecol Agr, Minist Agr China, Coll Nat Resources & Environm, Guangzhou 510642, Guangdong, Peoples R China

[2] S China Inst Environm Sci, Minist Environm Protect, Guangzhou 510655, Guangdong, Peoples R China

[3] Yangtze Univ, Coll Agr, Jinzhou 434025, Peoples R China

来源：

PEDOSPHERE | 2011年 / 21卷 / 05期

基金：

中国国家自然科学基金;

关键词：

grain yield; heavy metal; low metal-accumulating cultivar; Zea mays L; CONTAMINATED SOIL; IN-SITU; YIELD COMPONENTS; SEWAGE-SLUDGE; HEAVY-METALS; L; RICE; CD; LIME; PHYTOAVAILABILITY;

D O I：

10.1016/S1002-0160(11)60167-7

中图分类号：

S15 [土壤学];

学科分类号：

0903 ; 090301 ;

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.

引用

页码：650 / 656

页数：7

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