Swing Plow
Swing Plow is a Fortress Age African Granary upgrade for Villager gathering from Food Fields. It raises that specific work rate by 15% and continues an investment in the African Field economy.

Research profile
- Age & building
- Fortress Age · Granary
- Prerequisite
- Subsistence Farming
- Cost & time
- 600 Wood · 30 seconds
- Follow-up
- Vegetable Carbon
Research effect
Research requires Subsistence Farming, costs 600 Wood and takes 30 seconds. The 15% bonus applies to Villagers gathering Food from Fields; it does not improve other Field resources or Food from Hunts, Mills, Rice Paddies or Haciendas. Vegetable Carbon is the later Industrial Age follow-up, with its own cost and research time.
Research condition
Africans · Fortress Age · Granary · requires Subsistence Farming · 600 Wood · 30 seconds · +15% Villager Food gathering from Fields.
Cost and prerequisites
Research it when a substantial group of Villagers will keep working Food Fields long enough to repay the high Wood cost. If the economy depends on hunts or another source, the improvement will not help those workers. Plan for the full line only if the match is likely to continue through the later follow-up.