污泥和矿化垃圾对土壤性状及黑麦草生长的影响

通过盆栽试验研究了不同用量污泥和矿化垃圾对黑麦草生长的影响。结果表明,施用量5%、10%的污泥能显著提高黑麦草生物量及促进根系生长,作为栽培介质施用量在25%~100%的矿化垃圾能显著提高黑麦草生物量及促进根系生长,且矿化垃圾用量越大,地上、地下部生物量也越大。污泥和矿化垃圾还可降低土壤pH,增加土壤有机质、速效氮、磷含量。用污泥和矿化垃圾作为绿化植物栽培介质,即找到了2种废弃物的出路,又可降低绿化植物的栽培和养护成本,是一条经济可行的途径。

Effects of Applying Sewage Sludge and Aged Refuse on Soil Properties and Growth of Lolium perenne

A potted experiment was conducted to examine the effects of the applications of sewage sludge and aged refuse on the growth of Lolium perenne.The results suggested that both sewage sludge and aged refuse could improve the overground and underground biomass of L.perenne with the application amounts of 5% and 10% for sewage sludge and 25%-100% for aged refuse.The overground and underground biomass increased with the increase of application amount of aged refuse.Sewage sludge and aged refuse could also decreas...