Cabbage production bug anyone?

Somehow despite what the system text said (cabbages take longer to grow but will yield a lot) carrots seem to be the most plentiful veggie I get out of the same size of veggie upgrades. Cabbages, on the otherhand, seem to yield even less than beetroots. And I'm not seeing cabbage farms taking more time to grow/plow. Is this a bug in beta?