摘要
以金华市某污水处理厂污泥为研究对象,研究污泥堆肥对旱荷花生长及土壤环境影响。结果表明,污泥土地利用提高了土壤中N、P及有机质含量,土壤理化性质有明显改善,但同时也增加了土壤中Cd元素的含量,不同处理土壤Cd含量比对照增加了12.95%-154.48%,土壤Pb、Cu、Zn含量变化甚微;长期施用该污泥堆肥,不会造成Pb、Cu、Zn对园林植物的毒害。且污泥堆肥不同处理的效果不同,污泥堆肥70%+园土20%+炉渣10%的处理4,旱荷花的开花时间提前,花期延长,开花量增加,施用效果最好。
The effect of sludge compost on nasturtium（Tropaeolum majus L.）growth and soil environment were rsearched through using the sewage sludge from JinHua wastewater treatment plant. The results showed that Treatment4 was notably promote the nutritional growth of Chrysanthemum, extend the florescence and increase the amount of flowers.Land application of sewage sludge compost could increase the contents of N, P and organic matter in soil. The effect of employing the prescription is the best. Howerer, after application of sweage sludge compost, Cd contents also increased by 12.95% to 154.48% compared with the control,while the contents of Pb, Cu and Zn in soil showed no significant change. Soil physical chemical behavior was improved. Pb,Cu and Zn in the sludge compost had little toxicity to plants.
出处
《华东森林经理》
2009年第4期16-19,共4页
East China Forest Management
关键词
污泥堆肥
旱荷花
生长
土壤理化性质
sludge compost
soil physical chemical behavior
environment impact
nasturtium
