应用生态学报2012，Vol.23Issue(2)：383-388,6.
有机物料对污染土壤上水稻生长和重金属吸收的影响
Effects of organic amendments on the growth and heavy metal uptake of rice on a contaminated soil
摘要
Abstract
A pot experiment was carried out to investigate the effects of three organic amendments (organic carbon material, rapeseed cake, and pig manure) on the growth and heavy metal uptake of rice on a heavy metal mixed contaminated paddy soil. Applying rapeseed cake and pig manure could mitigate the toxic effect of heavy metals on rice plant. The two organic amendments increased the shoot biomass and grain yield significantly, and decreased the heavy metal concentration in brown rice. Under the application of organic carbon material, rice growth was inhibited. As compared with the control, applying rapeseed cake and pig manure increased the grain yield by 128. 3% and 67. 9% , and decreased the Cd, Cu, and Zn concentrations in brown rice by 47. 6% , 35. 2% and 21. 5% , and 9. 5% , 21. 2% and 9. 3% , respectively. The shoot biomass and its total accumulation of Cd, Cu, and Zn had significant negative correlations with the soil DTPA-extractable heavy metals.关键词
有机物料/水稻/锌/镉/土壤Key words
organic amendment/ rice/ zinc/ cadmium/ soil分类
资源环境引用本文复制引用
周利强,吴龙华,骆永明,尹斌..有机物料对污染土壤上水稻生长和重金属吸收的影响[J].应用生态学报,2012,23(2):383-388,6.基金项目
国家自然科学基金重大国际合作项目(40821140539)、国家高技术研究发展计划项目(2006AA10Z418)和国家自然科学基金项目(41071197)资助. （40821140539）
