In March 1986 the Florida Institute of Phosphate Research (FIPR), Tennessee Valley Authority (TVA) and The Fertilizer Institute (TFI) conducted a seminar attended by representatives of almost all the U.S. DAP producers. The seminar reviewed quality aspects of DAP as a marketing function, quality control assay methods, raw material requirements, process limitation and process trouble shooting. The primary purpose of the seminar was to develop a program to resolve the quality problems faced by the DAP producers. A program was outlined and later developed in detail by TVA and FIPR. Industry inputs to the program were defined and agreements of cooperation were obtained from the representatives of the companies present.
Florida Institute of Phosphate Research, Tennessee Valley Authority, and The Fertilizer Institute. August 1986.