I don't like artificial methods that can damage the beneficial microbes. The peanuts seem to work. And rotating crops is biblical. ;)
/johnny
Exactly true ! I have grown peas (legumes , just like peanuts, and soy) , and got an organic supplement called "nitrogen-fixing bacteria" with looks like 'black fairy dust'.
You soak the seeds in water for a few minutes, put in plastic sandwich bag while moist , add the 'nitrogen-fixing' , and then plant.
No supplemental nitrogen needed during the season as the 'nitrogen-fixing bacteria' forms nodules in the plant root hairs, and feeds the plant throughout the season.
We had "snow peas" right up to killing frost .
Harvest was minimal as the kids would go up into the garden and eat them right off the plant , which in turn , would make the plants flower more, and more snow peas .