The word: agricultural engineering can be found in:

Heat Treatments for Postharvest Pest Control Theory and Practice

No Tillage Seeding in Conservation Agriculture (2nd Edition)

Physical Properties of Foods

Postharvest Handling - A Systems Approach (2nd Edition)

Potatoes Postharvest

Wastewater Use in Irrigated Agriculture: Confronting the Livelihood and Environmental Realities

Keyword: agricultural engineering