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Position: Home > Articles > Effect of Magnetic Materials on Cadmium Accumulation in Rice Agricultural Research and Application 2020 (2) 23-29

磁性凝胶颗粒对水稻镉积累的影响研究

作  者：
李慧敏;唐翠荣;雷静;乔路琳;蓝唯;黄秋伟;王丽萍;陆仲烟;龙凌云;程琴;黄显雅
单  位：
关键词：
水稻;镉;磁性凝胶;有效镉;回收率
摘  要：
以海藻酸钠凝胶颗粒、磁性颗粒、磁性凝胶颗粒为材料,通过盆栽水稻试验,比较3种材料对水稻镉积累的影响。结果表明:单独施用海藻酸钠凝胶颗粒或者磁性颗粒均能降低水稻各部位镉含量。3种材料对糙米的作用效果大小顺序为:海藻酸钠凝胶颗粒<磁性颗粒<磁性凝胶颗粒。磁性凝胶颗粒能有效促进水稻株高、茎叶、根系、籽粒的生长,显著降低糙米、谷壳、茎叶、根系中的镉含量(降低率分别为54.01%、34.78%、44.38%、22.68%)。各处理均能有效降低土壤中有效态镉含量,降低率范围为22.28%～25.93%。与海藻酸钠凝胶颗粒、磁性颗粒相比,磁性凝胶颗粒能通过外加磁场从土壤中回收,回收率最高,可达90.83%。
译  名：
Effect of Magnetic Materials on Cadmium Accumulation in Rice
作  者：
LI Huimin;TANG Cuirong;LEI Jing;QIAO Lulin;LAN Wei;HUANG Qiuwei;WANG Liping;LU Zhongyan;LONG Lingyun;CHENG Qin;HUANG Xianya;Guangxi Subtropical Crops Research Institute;Guangxi University;
关键词：
Rice;;cadmium;;magnetic gel;;available cadmium;;recovery rate
摘  要：
Sodium alginate gel particles, magnetic particles and magnetic gel particles were used to conduct a rice pot experiment to study the effect of cadmium accumulation in rice.Results showed that sodium alginate gel or magnetic particles applied alone could reduce the content of cadmium in different parts of rice. The order of effect of the three materials on rice was: sodium alginate gel < magnetic particles < magnetic gel particles. Magnetic gel particles could effectively promote the growth of rice plant height, stem, leaf, root and grain, and significantly reduce the content of cadmium in grain, chaff, stem, leaf and root(the reduction rates were 54.01 %, 34.78 %, 44.38 % and 22.68 %, respectively). All treatments could effectively reduce the content of available cadmium in soil, with reduction rates ranging from22.28 % to 25.93 %. Compared with sodium alginate gel particles and magnetic particles, magnetic gel particles could be recovered from the soil by external magnetic field with the highest recovery rate of 90.83 %.

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