1. State Key Laboratory of Crop Stress Biology for Arid Areas, Shaanxi Key Laboratory of Agricultural and Environmental Microbiology, College of Life Science Northwest A&F University Yangling Shaanxi China
2. State Key Laboratory of Agrobiotechnology, College of Biological Sciences and Rhizobium Research Center, Ministry of Agriculture Key Laboratory of Soil Microbiology China Agricultural University Beijing China
3. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation Northwest A&F University Yangling Shaanxi China