Allelopathic Tolerance and Physiological Response of Three Excellent Forages to the Root Extract of Euphorbia jolkinii

• YANG Xin, 
• MA Zuyan, 
• NIU Qiongmei, 
• LUO Qin, 
• XIE Yong, 
• LIU Yang, 
• SHAN Guilian, 
• CHU Xiaohui