Wheat Farming

Early on when this world was created, we built a large wheat farm with a way to harvest it all at once.  

There are 4 troughs that the wheat is growing in.  All blocks are hydrated to help the wheat grow fast.  When the harvest lever is flipped, water cascades down from the top level harvesting and collecting as it flows.

At the bottom, all of the wheat and seeds land in another flowing trough of water and are brought into the wheat/seed collection building.

Glass is used to transport the wheat and seeds upstairs to the collection hopper.  In the main room are the controls for the harvesting water and the chests for the wheat and the seeds.

Up one level is where the wheat and seeds are collected in a hopper.  After that they are fed to a one item sorting machine that sends the wheat to one chest and everything else, seeds 99% of the time to the other chest.