Kentucky bluegrass is a cold-season turf grass with stronger resilience capacity. It can be planted in most northern part of China and is widely used in urban area for turf establishment in parks, football pitch, golf courses, schools, residential area and so on. Based on the growth characteristics of Kentucky bluegrass turf, the study utilizes the selective culture medium to analyze dynamic changes of both rhizosphere and non-rhizosphere bacteria, actinomyces and fungi under different light condition...