Abstract: Quantitative analysis of growth and regeneration characters of Dactylis glomerata tiller tufts shows that during its blooming and vegetative growth periods, the number of tillers per tuft is linearly increased with increasing tuft size. The living and dead biomass of the tuft is positively correlated to its size and tiller number f respectively. The mean weight of each tiller is respectively decreased hyperbolically and power-functionally with increasing tuft size and tiller number,and the earing rate is linearly decreased with the increase of them. The strategy for the growth of tuft is to throw most part of energy into its reproductive growth at the earlier growing stages.

Key words: Dactylis glomerata, Tiller tuft, Tuft size, Biomass, Yield of aftergrass, Quantitative character, municipal sewage sludge, plant-soil system, sewage sludge utilization