Interesting decentralized approach: the idea is to replace bulky farm equipment with swarms of precision helpers that can maintain an entire field autonomously. More here.
Interesting intellectual property case: Monsanto went to court to stop a Saskatchewan farmer from replanting genetically modified canola seeds (without payment of an annual license fee). Wired News | NY Times.

One would think that this type of thing should happen here first....
Maria Alicia Gaura writes:
After 25 years of persistent work, Marin County rancher Albert Straus has figured out a way to run his dairy farm, organic creamery and electric car from the manure generated by his herd of 270 cows.Cheered on by a small gathering of engineers, environmentalists and fellow farmers, Straus stepped into a utility shed Thursday, switched on a 75- kilowatt generator, then stepped outside to snip the ribbon spanning a spanking-new electrical panel.