Impacts of rapeseed dregs on Cd availability in contaminated acid soil and Cd translocation and accumulation in rice plants
Impacts of rapeseed dregs on Cd availability in contaminated acid soil and Cd translocation and accumulation in rice plants
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油菜籽渣对污染酸性土壤中镉有效性及水稻体内镉转运积累的影响
DOI：
10.1007/s11356-016-7326-5
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发表时间：
2016-08
影响因子：
5.8
通讯作者：
Liao Bo Han
中科院分区：
文献类型：
--
作者：
Yang Wen Tao;Gu Jiao Feng;Zou Jia Ling;Zhou Hang;Zeng Qing Ru;Liao Bo Han
研究了油菜籽渣（RSD）在0、0.75、1.5和3.0%的施用量下对土壤中Cd有效性和水稻（Oryza sativa L.，通过盆栽试验研究了湘晚鲜12号、威优46号等3个品种对水稻产量的影响。结果表明，RSD的应用导致土壤TCLP提取态Cd含量急剧下降。但在水稻生长期内，施用土壤TCLP提取态Cd含量逐渐增加。施用RSD显著增加了Cd从根向地上部的转运和地上部的累积量。RSD是一种有效的有机添加剂，可提高水稻产量，但也增加了水稻籽粒中Cd的总含量。在1.5- 3.0%RSD的施用量下，威优46号糙米中Cd的全量为0.27-0.31 mg kg−1，超过了标准安全限量（0.2 mg kg−1），也高于湘晚籼12号糙米中Cd的全量（0.04-0.14 mg kg−1）。因此，威优46号比湘晚鲜12号具有更高的风险。镉污染稻田不宜种植威优46#，且施用的相对标准偏差不应超过0.75%。
The objective of the present study was to investigate the effects of rapeseed dregs (RSD, a commonly organic fertilizer in rural China) at application rates of 0, 0.75, 1.5, and 3.0 % on Cd availability in soil and its accumulation in rice plants (Oryza sativaL., Xiangwanxian 12#, and Weiyou 46#) by means of a pot experiment. The results showed that application of RSD resulted in a sharp decrease in the soil TCLP-extractable Cd content. However, the soil TCLP-extractable Cd content in amended soil gradually increased during the rice growing period. Application of RSD significantly increased Cd transport from root to shoot and the amount of Cd accumulated in the aerial part. RSD was an effective organic additive for increasing rice grain yield, but total Cd content in rice grain was also increased. At an application rate of 1.5–3.0 % RSD, the total Cd content in Weiyou 46#brown rice was 0.27–0.31 mg kg−1, which exceeded the standard safe limit (0.2 mg kg−1) and was also higher than that of Xiangwanxian 12#(0.04–0.14 mg kg−1). Therefore, Weiyou 46#had a higher dietary risk than Xiangwanxian 12#with RSD application. We do not recommend planting Weiyou 46#and applying more than 0.75 % RSD in Cd-contaminated paddy fields.
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DOI：
10.1016/s0048-9697(01)01000-2
发表时间：
2002-03
期刊：
The Science of the total environment
影响因子：
--
作者：
Yujun Yin;C. Impellitteri;S. You;H. Allen
通讯作者：
Yujun Yin;C. Impellitteri;S. You;H. Allen
影响因子：
4.9
作者：
Hang Zhou;Min Zeng;Xin Zhou;B. Liao;Pei-qin Peng;Miao Hu;Wei Zhu;Yu-Jun Wu;Zi-Jin Zou
通讯作者：
Hang Zhou;Min Zeng;Xin Zhou;B. Liao;Pei-qin Peng;Miao Hu;Wei Zhu;Yu-Jun Wu;Zi-Jin Zou
影响因子：
6.8
作者：
Sharma, Rajesh Kumar;Agrawal, Madhoolika;Marshall, Fiona
通讯作者：
Marshall, Fiona
影响因子：
11.8
作者：
Impellitteri, CA;Lu, YF;Peijnenburg, WJGM
通讯作者：
Peijnenburg, WJGM
影响因子：
11.4
作者：
Williams, Paul N.;Villada, Antia;Meharg, Andrew A.
通讯作者：
Meharg, Andrew A.