It depends on what you mean by complicated. First of all you need good black dirt to farm. If you don't have that no matter how flat it is it isn't going to wor

It depends on what you mean by complicated. First of all you need good black dirt to farm. If you don't have that no matter how flat it is it isn't going to work. They already have levelers[1] available which get us most of the way there. Again, no good black dirt, it's not worth farming (at scale anyway). A combine or chopper can easily push you over a quarter million dollars, so the guy running the thing for a couple of tens of dollars an hour for a few months a year isn't that much of a cost compared to your input costs, etc. Variability in land form doesn't contribute to risk mitigation much if at all unless you're talking about large geographic distances, which of course it's the fact that diseases and weather systems don't travel far and fast enough not that the land form is different. More specifically, GMO provide the best opportunity to address disease and weather issues. That said, maybe that isn't what we should be optimizing for. [1]http://www.youtube.com/watch?v=1uaYbXtPs_o&feature=related http://www.youtube.com/watch?v=1uaYbXtPs_o&feature=relat...