The defferences of lines of Zoysia japonica Steud and Eremochloa ophiuroides (Munro) Hack on growth and soil preservation in the spope land

Abstract

We tried to evaluate the differences in the early growth rate and soil conservation ability between four lines of Japanese lawngrass (Okinawa, Toi cape, Aso and, Jambo) and two cultivars of centipedegrass (TifBlair and Common) . Both kinds of grasses were grown for one month and then transplanted in a pasture. Following the transplantation, in the first measurement (45 days after transplantation), of the survival rates of both the grasses were high in the range 76.3-92.2%, which were considered high. However, during the second measurement (97 days after transplantation), survival rates of the Japanese lawngrasses and the centipedegrasses were in the range 42.8-59.5% and 84.5-92.8%, respectively. Thus, the survival rates of the centipedegrasses were higher than those of the Japanese lawngrasses. For coverage 530 days after transplantation, Aso line was the highest among the Japanese lawngrasses, and was also higher than both the cultivars of centipedegrasses that had the same coverage. For water permeability and infiltration capacity, all the lines of Japanese lawngrasses showed high values than the centipedegrasses. In conclusion, we believe that Japanese lawngrass have greater ability to increase soil permeability towards water.