Nitrogen source Organic nitrogen Primarily from the catabolism of amino acids Oxidized forms of inorganic nitrogen Nitrate and nitrite Reduced inorganic nitrogen Ammonium Dissolved nitrogen gas (Nitrogen fixation)
Nitrogen source Organic nitrogen Primarily from the catabolism of amino acids Oxidized forms of inorganic nitrogen Nitrate and nitrite Reduced inorganic nitrogen Ammonium Dissolved nitrogen gas (Nitrogen fixation)