N content in Humic & Fulvic acids are

Humic acids are the organic substances that coagulate when the strong-base extract is acidified. It is a chemical produced by decaying plants. It is used as medicine for stimulating the immune system and treating the flu, avian flu and other viral infections.
A fulvic acid is a group of chemicals formed when plants and animals break down. It is found in the humus part of soil and peat.
Nitrogen content in Humic & fulvic acids is 1 - 4%. Humic acid contains more carbon and less hydrogen than does the animal and plant residues from which it has formed through extensive biological decomposition.