Grainfields are based on unused plains. In every tick the produce grain; this production depends on the expansion stage, population number and fertility of the field. While at most 300 peasants can farm a Level I grain field, a Level X grainfield achieves its highest output only with 1200 peasants.
The fertility of a field may be increased by nearby active paddocks. However, the fertility never surpasses 100 %.
To allow the sustenation of a population by grain, the grain needs to be processed into flour and then bread by mills and bakeries. The grain can be distributed between mills and paddocks in the stock depending on the needs.
Should a shortage of bread occur, then the population on grainfields dies of hunger at a lower rate than on other fields. This allows to break the circle of starvation.
*The provided construction time does not take the research areas "Fatigue Duty" and "Industrial Cooperative" into account!
The cancellation of construction orders is possible at any time. 90 % of the paid ressources are returned.
Hints by experienced players
For efficient grainfields, their fertility is crucial. Grainfields should be sowed on plains of 85% fertility or more. This is just a guideline, of course. If only plains of lower fertility are available, it is a good idea to build a paddock nearby to slowly increase the fertility of surrounding plains and grainfields. In order to be able to supply all mills, you should have approximately twice as many grain fields as mills. Pay attention to the necessary number of inhabitants for the maximum yield when upgrading the grainfields!