My last character had 12 9*9 fields inside a trap fence, but didn't plant anything the last year due to over production.
There are a few reasons for the agricultural excess:
- The Nerpezit Cooking Mod: The two recipes I use (Goulash and Borsch) require agricultural products as input.
- I've decided to use Yarrow for spices, and it's a low yield crop.
- The initial agriculture skill is low -> low yield, which increases fairly quickly.
I've placed my fields 3+ tiles away from my settlements in order to avoid running into problems with the item limit at the homestead. Otherwise, Plotinus' gradual expansion one cooking fire at a time is a smart approach (I, in contrast, cut trees and prepare for soil preparation during my characters' first winter [characters starting in "spring"]), spending a month or two more or less constantly in burning/soil preparation once the ground thaws [planting of early crops happen in there as well, but that doesn't take much time]).