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Research · Economy
Crop Rotation
Fallow fields turned to yield — raises production further.
- Entity ID
crop_rotation- Branch
- Economy
- Stat buffed
production_rate— Production rate- Bonus per level
- +1.2%
- Maximum level
- 15
- Bonus at maximum level
- +18%
- Power per level
- 58
- Power at maximum level
- 870
- Base study time
- 30 seconds
- Study time at maximum level
- 2h 25m
- Prerequisites
- Irrigation at level 5
Cost, time and bonus at every level
Crop Rotation runs to level 15, adding +1.2% to production_rate and 58 power each time. Studying it out costs the four soft resources — the same amount of each — and takes 2h 25m for the final level alone. Gems are only ever the optional instant finish; the study itself is bought with what your fields already make.
| Level | Total production rate | Power | Study time | Each resource | Gems to finish |
|---|---|---|---|---|---|
| 1 | +1.2% | 58 | 30s | 3,000 | 50 |
| 2 | +2.4% | 116 | 45s | 4,200 | 70 |
| 3 | +3.6% | 174 | 1m 8s | 5,880 | 98 |
| 4 | +4.8% | 232 | 1m 41s | 8,220 | 137 |
| 5 | +6% | 290 | 2m 32s | 11,520 | 192 |
| 10 | +12% | 580 | 19m 13s | 61,980 | 1,033 |
| 15 | +18% | 870 | 2h 25m | 333,360 | 5,556 |
Taken from nothing to level 15 that is 7h 16m of raw study and 1,159,260 of each of food, wood, stone and iron — 4,637,040 resources in total. Levels above 10 additionally consume an advanced forging material, one more unit per level past the threshold, so the last 5 levels also need the forge working.
Where it sits in the tree
Crop Rotation belongs to the Economy branch — the production, construction and gathering line — everything that fills the stores. It stays locked until Irrigation reaches level 5. Nothing further in the tree depends on it, so it is a leaf: worth taking for its own bonus, never as a stepping stone.
The road here: Agriculture to level 8 → Irrigation to level 5 → Crop Rotation. That is 2 studies standing between a fresh Academy and this one.
| Prerequisite | Level required | Each resource | Study time |
|---|---|---|---|
| Agriculture | 8 | 103,140 | 1h 38m |
| Irrigation | 5 | 32,820 | 5m 30s |
| Total before you may begin | — | 135,960 | 1h 44m |
Related
Guide: Research & the Academy · Research Priorities. Studied at the Maester's Academy. Index: all 66 studies · the whole database.
Rest of the Economy branch: Agriculture · Logistics · Irrigation · Granaries · Millwork · Quarrying · Smelting · Deep Mining · Woodcraft · Animal Husbandry · Wainwrights · Foraging Craft · Masonry · Carpentry · Stonecutting · Trade Roads · Marketry
Every figure above is generated from the shipped game code — the same constants and formulas the running game uses — and regenerated whenever the balance changes. Nothing on this page is hand-typed.