摘要
[目的]为污泥堆肥农用提供理论依据。[方法]采用盆栽试验研究土壤中施入不同比例污泥堆肥(0、5%、10%、15%、20%)及分别添加40 g/盆粉煤灰和3 g/盆石灰对小白菜和萝卜生长发育及吸收重金属的影响。[结果]混合土壤中重金属的含量随污泥堆肥施入量的增大而升高,堆肥施入量为10%时,Cu含量超标,施入量为15%时,Zn含量超标。堆肥施入量低于10%时,可促进小白菜和萝卜生长,施入量达到15%时,小白菜和萝卜生长受到抑制。粉煤灰抑制小白菜吸收重金属的效果优于石灰。[结论]土壤中污泥堆肥施入量小于10%时,能促进蔬菜生长。粉煤灰和石灰能降低蔬菜对重金属的吸收。
[Objective] The aim was to provide the theoretical basis for the agricultural utilization of sludge compost. [Method] The pot test was taken to study the effects of different ratio（0, 5%, 10%, 15%, 20%）of sludge compost in soil and it with 40 g fly ash or 3 g lime per pot on growth and development and heavy metals absorption of pakchoi and radish as. [ Result ] The heavy mental content in mixed soil was increased with the increase of addition amount of sludge compost. When the addition amount of sludge compost was 10%, Cu content was over standard, while the addition amount was 15%, Zn content was over standard. It could promote the growth of pakchoi and radish when addition amount of sludge compost was lower than 10%, while the ddition amount reached 15%, the growth of pakchoi and radish was inhibited. The inhibitory effect of fly ash on heavy metals absorption of pakchoi was better than that of lime.. [Conclusion] It could promote the growth of vegetables when addition amount of sludge compost in soil was lower than 10%, and the fly ash and lime could decrease the absorption amount of vegetables on heavy mental.
出处
《安徽农业科学》
CAS
北大核心
2009年第5期2159-2162,共4页
Journal of Anhui Agricultural Sciences
基金
滇池管理局项目(昆滇管咨字[2006]2号)
云南省环境保护发展项目(云财建[2007]244号)
关键词
污泥堆肥
重金属
蔬菜
生长
Sludge compost
Heavy metal
Vegetable
Growth
