Mr. Nielsson is a long-time member of the Board of Directors of the Fertilizer Industry Round Table and was chairman of that group in 1979 and 1980. He is also active in the American Chemical Society’s Division of Fertilizer and Soil Chemistry, and in 1983 he received that Division’s Award of Merit.

• 1. Outlook, Concepts, Definitions, and Scientific Organizations for the Fertilizer Industry 2. Nitrogen 3. Phosphate Rock 4. Potash Mining and Refining 5. Thermal Phosphate 6. Production of Single Superphosphate with a TVA Cone Mixer and Belt Den 7. The Sackett Super-Flo Process 8. Wet-Process Phosphoric Acid Production 9. Granulation 10. Diammonium Phosphate Plants and Processes 11. Review of the Production of Monoammonium Phosphate 12. Granulation Using the Pipe-Cross Reactor 13. Bulk Blending 14. Dry Bulk Blending in the Americas 15. The Norsk Hydro Nitrophosphate Process 16. Controlled Release Nitrogen Fertilizers 17. Fluid Fertilizer 18. Environmental Regulations 19. Concentrated Superphosphate: Manufacturing Processes