Q.i have TKN value in soil of 2,000 mg/Kg
Is this normal? The soil was tested for nitrogen – nitrate and nitrite were not detected but TKN was present at 2,000 milligrams per kilogram. Is this TKN value within background range? I would like a frame of reference. Is this concentration typical of septic waste, manure or average soil?

Downtoearthdigs
Answered on September 23, 2015
Here is a link that should help you interpret these values.
http://vric.ucdavis.edu/pdf/fertilization/fertilization_Soiltestingfornutrientavailability2007.pdf
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
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