One of the advantages I find with agricraft is growing pumpkins and to a lesser extent melons. They grow and mature on a single block of dirt and can be harvested with a right click. Certainly worth growing when you consider how many you'll need if you want a 100% completion of all the challenges. The melons are similar except they only give you one slice which I think is a bit sad.
Are you not doing crop-stat increases? A 10/10/10 Agricraft crop drops four of the whatever. (Technically, only the middle '10' counts, but by the time you've cross-bred it up, chances are that you've gotten the other '10's.) Agricraft pumpkins are killer for getting seed oil in Forestry.