The Mississippi State soil lab has recently added OM and nitrogen testing, with Nitrogen listed as a percentage. For example, my test results had a hand written notation "N - 0.20%." All of the other entries (P, K, Mg, CA, etc.) are listed in lbs/ac of extractable nutrients. I'm hoping that someone can help me understand what "%N" represents … or at least what 0.20% N tells me about my fertilization needs for my fall plots!