I cut the part of the screenshot:
Look, this red hex looks like plains (because of 1P). So we have 1F + 1F (farm) + 2F (technologies?).
Blue hexes looks like grasslands: 2F +1F (farm) + 2F (technologies).
2K Greg wrote:
The interesting is yellow hex. Could it be flood plains on deserts (+2 food) with trading post?

Look, this red hex looks like plains (because of 1P). So we have 1F + 1F (farm) + 2F (technologies?).
Blue hexes looks like grasslands: 2F +1F (farm) + 2F (technologies).
2K Greg wrote:
Farm. Increases the food yield of a tile, and can be built on Grassland, Plains, and Desert tiles. Requires Agriculture. There are also a couple technologies that increase the yield bonus of farms.
The interesting is yellow hex. Could it be flood plains on deserts (+2 food) with trading post?