N levels in soil are something I actually ignore, unless they are sky high because of someone pounding an area with fertilizer due to lack of response. True story: I have had soil test results come back advising no more fertilization. Soil pH was the issue causing the poor growth.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775
Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738