Effects of red mud addition on cadmium accumulation in cole (Brassica campestris L.) under high fertilization conditions
文献类型：期刊论文
| 作者 | Li, Peng; Peng, Xianjia; Luan, Zhaokun; Zhao, Tongke; Zhang, Chengjun; Liu, Baocun |
| 刊名 | JOURNAL OF SOILS AND SEDIMENTS
 |
| 出版日期 | 2016-08 |
| 卷号 | 16期号:8页码:2097-2104 |
| 关键词 | Bioaccumulation factor Cadmium Cole High fertilization Redmud |
| 英文摘要 | Applications of mineral and organic fertilizer increased soil cadmium (Cd) and could enhance Cd concentrations in edible crops, respectively. Although red mud (RMD) effectively decreased metal bioavailability in soil, the influence of RMD addition on vegetable growth and metal accumulation under high fertilization conditions has rarely been addressed. The aim of this study was to investigate the effects of raw RMD addition on cole growth, quality, and nutrition and Cd accumulation under high fertilization conditions. Pot experiments with cole (Brassica campestris L.) were carried out in a greenhouse. Three treatments, CK (with no mineral fertilizer and RMD addition), CT (more than 2.5 times conventional level of mineral fertilizer applied without any RMD), and RM (more than 2.5 times conventional level of mineral fertilizer applied with RMD added at 0.4 % w/w), were established. After 40 days, the cole plants and soils of every replicate of all treatments were sampled. The Cd, biomass, vitamin C (VC), and total nitrogen and phosphorus of the cole plant samples and the Cd, pH, nitrate, and phosphorus of the soil samples were determined. In contrast to the CT treatment, RM treatment did not significantly influence the biomass and nitrate concentration of the aboveground cole. However, it significantly reduced the Cd content in cole shoots and its bioaccumulation factors by 30.0 and 28.5 %, respectively. The reduction of bioavailable Cd in soil by RMD sorption and the competition with calcium released from RMD led to low Cd assimilation by root. Finally, less Cd was transported to aboveground plant parts in the RM treatment compared with the CT treatment. RMD addition markedly enhanced the total nitrogen in cole shoots by > 16.0 %, and the VC by 20.9 %. The promotion of bacterial abundance and soil enzyme activity by RMD addition and calcium release from RMD generated substantial plant available nitrogen. With large rate of mineral fertilizer application to the soil, RMD (0.4 %, w/w) addition did not significantly influence the biomass, nitrate, and VC of aboveground cole; however, it significantly reduced the Cd and markedly enhanced the total nitrogen in cole shoots. This study provides valuable information for the safe application of RMD in vegetable production. |
| 收录类别 | SCI |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/36036]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Li, Peng,Peng, Xianjia,Luan, Zhaokun,et al. Effects of red mud addition on cadmium accumulation in cole (Brassica campestris L.) under high fertilization conditions[J]. JOURNAL OF SOILS AND SEDIMENTS,2016,16(8):2097-2104. |
| APA | Li, Peng,Peng, Xianjia,Luan, Zhaokun,Zhao, Tongke,Zhang, Chengjun,&Liu, Baocun.(2016).Effects of red mud addition on cadmium accumulation in cole (Brassica campestris L.) under high fertilization conditions.JOURNAL OF SOILS AND SEDIMENTS,16(8),2097-2104. |
| MLA | Li, Peng,et al."Effects of red mud addition on cadmium accumulation in cole (Brassica campestris L.) under high fertilization conditions".JOURNAL OF SOILS AND SEDIMENTS 16.8(2016):2097-2104. |
入库方式： OAI收割
来源：生态环境研究中心
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