This bulletin is a collection of abstracts on Fertilizer Marketing selected from those appearing in Fertilizer Abstracts between July 1973 and June 1978. A similar collection was made of the material from January 1968 through June 1973, and is available in Bulletin Y-59. Together the two bulletins contain nearly 2000 abstracts and cover the majority of marketing publications over the past 10.5 years.

TVA's Eleventh Demonstration of Fertilizer Technology shows the advances resulting from several years research, development, and production at the National Fertilizer Development Center. Staged every 2 years, these showings supplement our efforts to make results of the work generally available for the benefit of fertilizer manufacturers throughout the world.

This report summarizes findings in the agronomic area of fertilizer research from July 1, 1975, through September 30, 1978. Similar 3-year reports were issued in 1957 and at 3-year intervals thereafter.