i have researched organization but nothing popped up.
no, there must be crop to develop a farm.
on a field you can grow forest.
you can burn the forest to get crop.
then you can build a farm.
you need to research hunting+forestry, archery+spiritualism, organization+farming and riding+free spirit+chivalry.
loong way to go if you start with just one forest on an island without sea harbor access.