There's this ICO going on for an Australian company called BlockGrain.io 
You might also be interested in their BlockGrain.io bounty thread   
https://blockgrain.typeform.com/to/CLUlBw

Check this out aswell
http://m.startribune.com/as-farmers-store-and-sell-more-crops-themselves-here-s-how-cargill-stays-in-the-middle-of-the-grain-trade/483075271/