A friend sent me these videos of what someone in Western Slovakia had made. I'm waiting for my wife to watch with me so I can get a running translation, but it seems rather novel:
http://www.youtube.com/watch?v=IMbGA-nOW64
http://www.youtube.com/watch?v=Von3EgRGutw
The guy has made a boom that rotates around a field sort like an
irrigation system, but instead has attachments that shovel the ground, make holes for transplanting, etc.
This seems like it could be good for someone who doesn't have the time/strength to double dig by hand, has access to electricity, and would want to use technology that minimally compacts the soil. Not to mention that unlike one of the push-tractors, roto tiller type things, one could turn this on, let it do its thing, and do something else in the meanwhile.
