Heavy Plow is a Farm technology. New Farms provide +125 food. Farmers +1 carry capacity. Existing Farms provide a smaller food amount.
- Building: Farm
- Age: Castle Age (Burgundians get it one age earlier)
- Cost: 125 food, 125 wood
- Research time: 40 seconds
- Available to: 55 of 56 civilizations. Missing for: Khitans.
The Castle Age farm upgrade. Besides the extra food per farm, the extra carry capacity means fewer trips to the Mill.
Figures from the game data for Update 185872 (September 2026), at the time of publishing.