Abstract:Carpet turf production was used to conduct on cultivated soil in China. The fertile cultivated soil was often taken with turf selling. After several cycles, the soil became infertile and could no longer be used for cultivating crops. Meanwhile, there is a rapid increase of municipal solid waste (MSW) due to the population keep growing and the fast development of economy . MSW composting has been proved to be a safe and effective way to utilize the large amount of MSW. In this study, field trials were conducted to investigate the effects of MSW compost medium on ecological characteristics and the quality of different turfgrass cultivars. The results showed that MSW compost had significantly improved the biomass of turfgrass on both aboveground and underground parts. Compared with the first stubble, the second stubble grew much better, this indicated that nutrients of MSW compost may release slowly. Plant height of the second stubble grew in MSW compost was measured on August 11 and 31, respectively; both were significantly higher than that of their controls (P<0.01) which grew in cultivated soil. Aboveground biomass of the second stubble of Triple, Cochise and Tipton grew in MSW compost increased by 88.9%, 115.7% and 121.0% (P<0.01) compared to their controls, respectively. Moreover, the underground biomass of three cultivars grew on MSW compost increased by 33.8%, 57.3% (P<0.05) and 125.7% (P<0.01) compared with their controls, respectively. In addition, MSW compost could accelerate turfgrass to regreen and the coverage, plant height and biomass in the next year. The regreening peak of turfgrass grew in MSW compost appeared between the end of March and the beginning of April. There was remarkable increase in turfgrass coverage in response to MSW compost. Plant height of turfgrass with the regreening in the next year grew in MSW compost was significantly higher than that of the controls, especially for Triple, Cochise and Tipton. Furthermore, MSW compost increased the biomass of both aboveground and underground of turfgrass in the next year. The increases of aboveground biomass were 74.2% (P<0.01) and 77.3% (P<0.05) for Triple and Tipton, respectively, and underground biomass were 63.8% and 69.0% (P<0.01) for Cochise and Tipton, respectively. Different turfgrass cultivars showed different responses to MSW compost in plant growth. Among which, three Festuca arundinacea L. cultivars had higher biomass and growth rate than Lolium perenne L. cultivar. According to National Turfgrass Evaluation Program (NTEP), the scores for turf grew in MSW compost assessment were much higher than those of their controls. Cultivar Accent achieved the highest score of 8.4 in comprehensive quality, especially in density, color and texture of leaves. These results demonstrated that MSW compost contained rich nutrients and the nutrients released slowly, which made the compost support turfgrass to grow more than two years or even longer. Turf established in MSW compost medium showed better color effect and other properties. These findings highlight that turf production with compost came from MSW could largely reduce the environmental pollution and soil contamination. Thus, it is necessary to replace soil medium with MSW compost in turf production.