ZHAN Shao-jun1,2,YU Hua1,FENG Wen-qiang1,QIN Yu-sheng1,LIAO Ming-lan1,WANG Chang-quan1,TU Shi-hua1(1.Soil and Fertilizer Institute,Sichuan Academy of Agricultural Sciences,Chengdu,Sichuan 610066,2.College of Resources and Environment,Sichuan Agrcultural University,Ya'an,Sichuan 625014)
S141 X131.3 X56