Currently, a number of farmable items can't be compressed, which makes them more demanding in storage and less appealing to farm. Ideally all farmables should be compressible For non /sell items, I think some more blocks that can build up or might be worth trading in bulk could be added. Andesite, diorite, granite and all the types of wood. Bonemeal could also be made compressible since not all of it comes in bone form and it's useful for farming.
