1. National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers, College of Resources and Environment, Shandong Agricultural University, Tai’an, Shandong 271018, China
2. State Key Laboratory of Nutrition Resources Integrated Utilization, Shandong Kingenta Ecological Engineering Company, Ltd., Linyi, Shandong 276700, China
3. Institute of Agricultural Environment and Sustainable Development, Chinese Academy of Agricultural Sciences, Beijing 100081, China