Hmmm, not too sure about this Sepp guy. The randomly growing stuff just everywhere works, however. I've seen it in a few permaculture places here in Ireland. It takes time of course, and yeah the commercial farms don't want to spend much time.

That hog idea seemed crazy to me to be honest. I used to have a potbellied pig, and she would eat any seeds, roots etc. that I planted, so even though they might keep the rodents away, they will also eat all of the harvest. They're awesome for detecting diseases though I found out...if they don't eat it: trust me, it's no good.
Chickens might scare off the rodents...but not sure what they will do to your growing plants. I completely understand those rodents though: pea sprouts and shoots are VERY tasty. I love them more than the actual peas and I'm sure they agree. I've given up on growing peas since I discovered the shoots...They don't make it past a week of growth here before harvest :)

My best experience here with rodent control is the old-fashioned way: cats. My three cats will catch anything that moves. I've seen them catch birds out of the air, pounce on mice and any bug that flies or crawls. In the winter they come into the house more, so we can keep the mice out, and in the summer they're pretty much outdoors most of the time to keep the mice from even camping around the place. It works! My cats hardly ever roam either, and never very far, there's just so much to do for them here and they take their jobs very seriously. And aside from the odd beheaded mouse or bird, I hardly see any casualties because mine are true hunters: they hunt, kill and eat their prey.