Wu, Gen-Fu Evaluation of nutrient limitation in aquatic ecosystems with nitrogen fixing bacteria. [electronic resource] - Journal of environmental sciences (China) 2006 - 537-42 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1001-0742 Subjects--Topical Terms: Azorhizobium--growth & developmentEcosystemEnvironmental Monitoring--methodsFresh Water--chemistryHydrogen-Ion ConcentrationNitrogen--analysisPhosphorus--analysisTemperature