This detailed multi-page article, "Chemical Fertilizers" by Christopher J. Pratt, provides an in-depth look into the world of agricultural science from the 1960s. It explores the critical role of chemical fertilizers in food production, outlining their various elements, manufacturing processes, and application methods. The content is rich with historical context, offering insights into farming practices and scientific understanding of the era.

Included within the article are informative diagrams such as a world map illustrating fertilizer use, visual guides to nutrient deficiencies in plants, and a comprehensive flowchart of fertilizer production. It also features graphs detailing agricultural input trends from 1940-1965 and yield economics. Two compelling photographs showcase a farmer applying fertilizer and an aerial view of a chemical plant. This piece of ephemera is a valuable resource for collectors of agricultural history, science ephemera, and those interested in the evolution of farming technology.