Possibilities of reducing heavy metals toxicity by using organic residues

摘要：

A pot experiment was carried out in the greenhouse of National Research Centre to study the effect of some organic residues (farmyard manure, peanut residue and potassium humate) on different heavy metals toxicity on spinach plants under polluted and unpolluted soils. Results pointed out that organic residue increased plant height, leave number/plant and yield as compared with control in both polluted and unpolluted soils. Data also showed that decreasing NPK content and uptake in spinach plants grown on metal when contaminated soil with heavy metals whereas the application organic residue increased NPK content and uptake. Application of organic residues to the soil, significantly reduced Cd, Pb and Zn concentration in spinach the plant under study as compared with control under both polluted and unpolluted soils. Also, organic matter resulted in an increase in total Zn, Pb and Cd conent in both polluted and unpolluted soils as compared with control and NPK treatments.

关键词： heavy metals organic residues pollution yield chemical composition

作者: A. A. Yassen

作者单位: Plant Nutrition Depart. National Research Centre, Giza, Egypt

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 251-252

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）