【摘要】 本文报导了经过堆肥处理的污泥有机肥培育结缕草 ( Zoysia-Japonica)的初步试验。结果表明 ,以 Cd为施污泥量的限制因子 ,在施污泥有机肥 4 5 t· hm- 2 (干重 )以下时 ,酸性与微酸性土壤 ( p H<6.5 ) ,土壤中 Cd含量 ,低于 Cd的土壤环境质量标准 ( 0 .3mg· kg- 1 ,地下水 NO3-N含量 ,低于地面水 、 类标准 ( NO3-N1 0 mg· L- 1 )。土壤中有机质、速效N、总 N、总 P分别比对照增加 1 6%、78%、61 %和 1 4 0 % ,结缕草地上部分生物量是对照区的 1倍。因此 ,园林绿化是污泥处置利用的良好途径更多还原

【Abstract】 The preliminary experiments on sludge by compost as the fertilizer used for grassland(Zoysia Japonica)were made.The results showed that Cd content in soil was lower than 0.3mg·kg -1 which is the value of soil environmental quality standard in china under the conditions of the fertilizer applications lower than 45t·ha -2 (dry weight)and the pH value of soil<6.5(Cd as the limiting factor for the amounts of fertilizer application).NO 3-N content of groundwater was lower than the value of the first grade national standard of groundwater(NO 3-N10mg·L -1 ,P0.1mg·L -1 ).The content of organic matter,activated form N,total N,total P were higher than control by 16%,78%,61%,and 140%respectively.The biomass of Zoysia Japonica had been increased two times as against the control.Therefore,the sludge as the fertilizer used for grassland is a very good application way.更多还原