title: Total nitrogen determining for plant material containing nitrate.
mesh_terms: D003124:Colorimetry / Q000379:methods; D009566:Nitrates / Q000032:analysis*; D009584:Nitrogen / Q000032:analysis*; D010944:Plants / Q000032:analysis*; D013045:Species Specificity
chemical_list: D009566:Nitrates; D009584:Nitrogen