不同施肥措施对镉污染土壤上菊花生长及其品质的影响  

Effects of Different Fertilizations on Chrysanthemum Growth and Its Quality on Cd Polluted Soil

作　　者：张晓萍[1] 宗良纲[1] 郑建伟[1] 沈莉萍[1] 蒋培[1] 

机构地区：[1]南京农业大学资源与环境科学学院,江苏南京210095

出　　处：《农业环境科学学报》2008年第4期1617-1622,共6页Journal of Agro-Environment Science

基　　金：江苏省社会发展项目"土壤污染控制及修复技术的开发应用研究(BS2003029)";江苏省自然科学基金重点项目"典型区域土壤中重金属迁移累积特征研究(BK2006711-1)"

摘　　要：中药材的产量及其品质与施肥管理有着密切的关系。本试验通过盆栽试验研究了Cd污染土壤上施加钠磷、钙磷、有机肥、钠磷+有机肥和钙磷+有机肥对菊花生长及其品质的影响。结果表明,单施钠磷虽能提高菊花根系活力,降低菊花叶片Cd含量,同时会降低菊花叶片叶绿素含量,对菊花酶活性、蛋白质含量影响不大。钙磷在蛋白质含量、根系活力和叶绿素含量指标上的效果优于钠磷。有机肥增强菊花根系活力,有利于叶绿素合成,能提高菊花产量和蛋白质含量。除钙磷和有机肥的配合施用下根系活力指标较单施钙磷的效果差外,不同磷源和有机肥的配施处理发挥了磷素和有机肥各自的优点,均比单独施用方式的效果好。研究结果对于指导中药材种植的施肥管理具有参考价值。Pot experiment was carried out to study the effects of Na phosphorus, Ca phosphorus, organic fertilizer, Na phosphorus-organic fertilizer and Ca phosphorus-organic fertilizer on chrysanthemum＇s growth and its quality on Cd polluted soil. The results showed that the improvement effects varied with the different fertilizer due to their different characters and mechanisms. Root activity was improved and Cd content in leaves decreased with the Na phosphorus treatment, but the chlorophyll content in leaves was decreased simultaneously and there was no significant effect on the activity of enzyme and protein content. Ca phosphorus treatment was superior to Na phosphorus treatment in indexes of protein content, root activity and chlorophyll content, but no significant difference was occurred between the two phosphorus treatment in other indexes. Organic fertilizer treatment increased chrysanthemum＇s flower yield, which rose 80 percent compared to the CK. Chlorophyll content, protein content and root activity also got a rise with the Na phosphorus treatment. Combined application of Ca phosphorus with organic fertilizer was better than independent application of Ca phosphorus, except root activity index. Combined application of Na phosphorus with organic fertilizer was more effective than independent application of the organic fertilizer and Na phosphorus in all of indexes, which had best improvement effects among the treatments.

关 键 词：CD 钙磷 钠磷 有机肥 酶 

分 类 号：S147.34[农业科学—肥料学]