The document provides examples of ontology applications in agriculture domains including: 1. FAO examples such as a food safety ontology with 1600 concepts, a fisheries ontology integrating multiple systems with 25,000 concepts, and a food and agriculture journal ontology. 2. External examples including a crop biosecurity ontology cataloging training resources and a crop pest ontology to facilitate image searching. 3. Vivo, a virtual life sciences library at Cornell powered by an underlying ontology.