| 摘要: |
| 3种花卉（旱荷花、美人蕉及龟背竹）和５种草坪草（黑麦草、紫羊茅、葡枝翦股颖、马尼拉草及白三叶）施用污泥堆肥后，花卉的开花时间提前、花期延长，开花量增加；草坪草的生物量增大，绿色期延长等；土壤理化性质有明显改善。长期施用该污泥堆肥，不会造成Cd、Hg对园林植物的毒害；当污泥堆肥施用量小于9kg/m2,时,无NO3--N淋溶及地面径流造成的环境问题。 |
| 关键词: 污泥堆肥，生长响应，土壤理化性质，环境影响，草本植物 |
| DOI： |
| 分类号:X705 |
| 基金项目:天津市“八五”重点攻关项目的部分内容 |
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| The Growth Response of Some Kinds of Herbs to Sludge Compost |
|
Zhang Zengqiang Xue Chengze
|
| Abstract: |
| After the application of sludge compost,significant increment in blooming period,blooming date and flower number was observed in sueh flowers as nasturtium(Tropaeolum majus L.),Canna(C.india L.)and Ceriman (Monstera deliciosa Liebm)
and remarkable improvement in bioxnass,green period and soil physieal一chemieal behavior was deteeted in such lawn grasses as euphorbia (P.quinquefolia Planch),ryegrass
(LOlium Perenne L.),feseue(Festuca rubra L.),bentgrass(Agrostis stolonifera L.),
white clover(Trifolium repens L.)and Manila grass(Zoysia japonia Steud).Both Cd
and Hg in the sludge compost had little toxieity to plants.When the sludge compost applieation rates did not exceed 9.0kg/m2,there was no nitrate leaehing and runoff-in-dueed pollution problems. |
| Key words: sludge compost,growth response,soil physical-chemical behavior,envi-ronmental impact,herb |
