1. National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources
2. National Engineering & Technology Research Center for Slow and Controlled Release Fertilizers
3. College of Resources and Environment
4. Shandong Agricultural University
5. Taian
6. Agricultural and Biological Engineering
7. Institute of Food and Agricultural Sciences (IFAS)
8. University of Florida
9. Gainesville
10. USA
11. Department of Soil and Water Science
12. Tropical Research and Education Center
13. IFAS
14. Homestead