I didn't shift through the pages but I have some suggested, coming from an Iowan.
Perhaps grain bins, or a physical way of storage, possibly for cosmetic or practicality,
If you own a large lot of crop, maybe a vehicle that can harvest for you? (Lawn mower model to mimic a combine)
Stats? When I started with my farm I wanted to write down the times I planted, how many, and check my progress, and see if there's an exponential growth with planting, harvesting, and making money[/li][/list]
GMO's that would increase the yield of crop, with the con of cost / longer duration.
Crop rotation? This would be useful to make people use more than just one crop. If you've planted tomatos, than any other plant other than tomatos would have a +n% increase in yield, OR planting the same last crop would yield a -n% decrease in yield as the land isn't rotated.
Try to time the Environment with the seasons, so it gets cooler (more blue, maybe snow) during the winter hours and warmer, more sun during the summer, to help visualize the temperature
Farmers Market, where you have to buy seed or sell seed, instead of using commands. Would enable players to travel, develop relationships, make vehicles more worthy, and ensure that people aren't just sitting in their lots for hours doing nothing.
Odd of finding a "Golden seed", basically out of a small chance a person who harvests a plant has the opportunity to yield some golden seed, or just a very very bountiful harvest (ie. harvesting and you harvest a tomato plant and surprisingly get 15 seeds instead of 7) oddity being 1/400 or something random but still something to look forward to.
Include fertilizer (probably been suggested) that would increase the growth at the cost of money. Would make the people who don't like waiting 30+ minutes buy fertilizer to speed up growth.
Add an economy? I know that marijuana has an economical system based on supply and demand, and I don't ask that other seeds be off their fixed margin, but just a visualization of how much money is flowing in and out of the servers economy, just to show if crops sales are doing proficiently or not.
Add cows. Don't ask why, just do it.
Add a tilling item that would till multiple bricks at once. (Model could be that of an old motorize tiller) that enables players to build wider farms.
Replace Conan's admin with me
Allow sprinklers to be suspended in air, allowing for 1+ dirt, and a flush field (suitable for the vehicle, or for multi-row tilling/planting)
Guilds, or here in Iowa, Coops, which enables multiple players to buy and sell within themselves, adds as a community hud. (Mini has already started GF, and has multiple farmers included)
The Hud also include an in depth tutorial on how to farm, as I see every newcomer ask immediately how to play the game.[/li][/list]
Contracts, as lots of people will sell their services for currency, perhaps make a "legal binding contract" that if Mini requests someone to till their farm for $xxxx, then the person agreeing to work will sign the contract stating they will do the work, and Mini is required to pay it. (Basically to avoid people from not paying people for their labor, would boost cooperation and economy).
Again, don't know if these have been suggested before, but I would recommend these ideas as they would help the server.