Fertilizer boosts a Fallow Field’s maximum fertility when Farmhouse workers apply it in summer. Its effect lasts just over two years.
Fertilizer: what to do next
- Keep pasture animals producing Dung.
- Build and staff a Dunghill to collect Dung and make Fertilizer.
- Set the target field to Fallow and keep Farmhouse workers available in summer.
Why this happens
Fertilizer is a field improvement, not a substitute for sowing or a guarantee of harvest. Farmhouse workers apply it to Fallow fields in summer, and its boost to maximum fertility lasts just over two years. A crop growing in the field will not receive that summer Fallow treatment.
How to know it worked
Check the field’s maximum fertility after the summer application; simply owning Fertilizer is not enough.
Why is my Fertilizer not being used?
Check that it is at a staffed Dunghill, the target field is Fallow and Farmhouse workers are available in summer.
