1. Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences (IUA-CAAS), Chengdu National Agricultural Science and Technology Center, Chengdu 610213, China
2. Key Laboratory of Bio-resource and Eco-environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu 610065, China
3. Centre for Applied Biology and Soil Science of Segura, Spanish National Research Council (CEBAS-CSIC), Murcia 30100, Spain