Using iron fertilizer to control Cd accumulation in rice plants: A new promising technology

文献类型： 外文期刊

第一作者： Shao GuoSheng

作者： Shao GuoSheng;Chen MingXue;Wang DanYing;Xu ChunMei;Mou RenXiang;Cao ZhaoYun;Zhang Xiufu

作者机构：

关键词： rice (Oryza sativa L.);cadmium;iron fertilizer;EDTA center dot Na(2)Fe

期刊名称：SCIENCE IN CHINA SERIES C-LIFE SCIENCES （ 影响因子：1.61； 五年影响因子：1.148 ）

ISSN： 1006-9305

年卷期： 2008 年 51 卷 3 期

页码：

收录情况： SCI

摘要： Effects of two kinds of iron fertilizer, FeSO(4) and EDTA center dot Na(2)Fe were studied on cadmium accumulation in rice plants with two rice genotypes, Zhongzao 22 and Zhongjiazao 02, with soil culture systems. The results showed that application of iron fertilizers could hardly make adverse effects on plant growth and rice grain yield. Soil application of EDTA center dot Na(2)Fe significantly reduced the Cd accumulation in rice roots, shoots and rice grain. Cd concentration in white rice of both rice genotypes in the treatment of soil application of EDTA center dot Na(2)Fe was much lower than 0.2 mg/kg, the maximal Cd permission concentration in cereal crop foods in State standard. However, soil application of FeSO(4) or foliar application of FeSO(4) or EDTA center dot Na(2)Fe resulted in the significant increase of Cd accumulation in rice plants including rice grain compared with the control. The results also showed iron fertilizers increased the concentration of iron, copper and manganese element in rice grain and also affected zinc concentration in plants. It may be a new promising way to regulate Cd accumulation in rice grain in rice production through soil application of EDTA center dot Na(2)Fe fertilizers to maintain higher content of available iron and ferrous iron in soils.

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