A little discussion has developed on the topic of nitrogen fertilizers, in the comments to my January 25th post "Reason Unbound." Back40 has given a quite detailed comment, and I thought it worth bringing up here so it won't be missed.
Update - don't miss Eleutheros' comments to this post, either. This is getting too easy - the commenters are doing all the work! Thanks, everyone.
you can't eat it
2 weeks ago