Age of Empires Series Wiki

Villagers gather Food from Rice Paddies faster.
—In-game description

Irrigation Channels is a technology in Age of Empires III: The Asian Dynasties that can be researched at the Rice Paddy once the Fortress Age is reached and Paddy Threshing has been researched. Once researched, it allows Villagers to gather food from Mills, Farms, and Rice Paddies 15% faster. Dike-Controlled Canals is the further upgrade of this technology.

Rice Paddy technologies
FoodPaddy Threshing · Irrigation Channels · Dike-Controlled Canals · Mechanized Rice Cultivation
CoinRice Surplus · Rice Trade · Rice Markets · Rice Exports · Collective Economy