My guys are also in the same rut. They just keep watering the crops, nothing has sprouted, and they won't do anything else. I'm on my fourth game: here were the stats:
hours played - about 85-90?
food about 15,000
population 60
tech levels completed 9
puzzels solved 7

Totally frustrated now. I've restarted twice since then and my villagers just seem to go into zombie mode. The Berry bnush is depleted, I'm on level 2 harvesting, but nothing is growing. I think they flooded the field. Have I caught a bug?