利用珍珠岩、锯末、煤渣、砂作基质代替土壤进行无土栽培草皮试验 ,通过测定不同基质的保水性能、草皮成卷时间、草皮重等指标 ,并采用方差分析及灰色系统理论中的关联分析法进行综合评估分析表明 ,珍珠岩作基质在无土栽培草皮中效果最佳 ,其次为锯末、煤渣 ,最差为砂 Soil-free culture turf was made by using perlite, sawdust, coal cinder and sand as substrate instead of soil. The indexes of water retention, turf rolling time and turf weight of different substrates were measured and analyzed by variance analysis and gray system theory Synthetical evaluation of the method shows that perlite as the substrate in soilless culture turf best, followed by sawdust, cinder, the worst for the sand