Screening of the pasture mixed sowing combination in Shangri-la alpine region of Yunnan

• Fu-jin YUAN, 
• Mei-fen HUANG, 
• Xiang-long LIAO, 
• Wen-rong WU, 
• Mei YU, 
• You LI, 
• Shi-ming XUE, 
• Xin WANG, 
• Ji-zhong LI