The distinct allelopathic capability of alfalfa was supposed to put into use controlling weeds and reducing the application of herbicides.In this experiment,the effects of allelopathy of the aqueous extracts of stems and leaves (0.15gFW/mL) from fifteen cultivars of alfalfa on germination and seedling growth of weeds were investigated by culture plate and sand culture bioassays.The results showed that significant differences were existed among cultivars.The inhibition of Phabulous,Longdong and Zhongmu No.1 ...