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, Taian, Shandong 271018, China
2. Department of Soil and Water Science, Tropical Research and Education Center, IFAS, University of Florida, Homestead, Florida 33031, United States
3. Agricultural and Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, Florida 32611-0570, United States
4. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
5. Shanghai Synchrotron Radiation Facility/Zhangjiang Laboratory, Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
6. University of Chinese Academy of Sciences, Beijing 100049, China
7. College of Chemistry and Materials Science, Shandong Agricultural University, Taian, Shandong 271018, China