几种改良剂对Cd和Pb污染土壤小白菜生长的影响  

Effects of Several Modifiers on the Growth of Non-heading Chinese Cabbage in Cadmium and Lead Contaminated Soil

作　　者：周华[1] 吴礼树[2] 洪军[3] 孙成[3] 

机构地区：[1]扬州环境资源职业技术学院环保系,江苏扬州225007 [2]华中农业大学环境资源学院,湖北武汉430070 [3]南京大学环境学院,江苏南京210093

出　　处：《河南农业科学》2006年第5期90-94,共5页Journal of Henan Agricultural Sciences

摘　　要：采用盆栽试验研究了稀土镧、熟石灰、钙镁磷肥和柠檬酸4种改良剂对小白菜在重金属Cd和Pb污染土壤上生长的影响。结果表明:受Cd和Pb污染的土壤明显使小白菜受到毒害,但经稀土镧、熟石灰、钙镁磷肥和柠檬酸处理后,小白菜生物学产量增加,幼苗体内超氧化物歧化酶活性降低,丙二醛含量减少。其中,稀土镧对缓解Cd和Pb胁迫有较好效果。Effects of four modifiers of Lanthanum, calcium hydroxide, fused calcium magnesium phosphate and citric acid on the growth of non-heading Chinese cabbage cultured in CA and Pb contaminated soil were studied by pot trials. The results showed that the non-heading Chinese cabbage was chronically harmed by CA and Pb added into the soil, but this harmful effect could be counteracted by applying Lanthanum, calcium hydroxide, fused calcium magnesium phosphate and citric acid to the soil, respectively, with the results that the content of fresh weight of non-heading Chinese cabbage increased, the contents of SOD and MDA decreased.

关 键 词：Cd Pb 熟石灰 钙镁磷肥 镧 柠檬酸 小白菜 

分 类 号：S634.3[农业科学—蔬菜学]