(1983-08-31) Salladay, David G.; Hargett, Norman L.
This material summarizes the content of a material discussing the production and consumption of sulfur-bearing fertilizers in the United States. It highlights the historical significance of sulfur as a plant nutrient and emphasizes the need to review its use in modern agricultural practices. The material explores areas of sulfur deficiency in different states, factors complicating the identification of sulfur deficiencies, and the role of atmospheric deposition in sulfur availability. It also discusses the production of granular sulfur-bearing fertilizers, such as monoammonium phosphate (MAP) and diammonium phosphate (DAP), as well as fluid sulfur-bearing fertilizers like ammonium thiosulfate and urea-ammonium sulfate. The document concludes by mentioning mathematical equations for formulating consistent quality clay suspensions in fluid fertilizers and developing a new urea-ammonium sulfate suspension.