Allelopathic effects of six alfalfa varieties at three stubbles on the germination, seedling and root growth of green foxtail and barnyardgrass - Meixuan Li; Xiaohan Gai; Qian Bai; Fanru Xu; Shipu Cheng; Fuhong Miao; Qingwei Liang; Juan Sun; Yufang Xu (PLoS ONE)