title: Stimulatory effects of Azotobacter chroococcum exudates in culture and soil on its nitrogen fixation.
mesh_terms: D000596:Amino Acids / Q000378:metabolism; D001395:Azotobacter / Q000378:metabolism*; D002854:Chromatography, Paper; D003470:Culture Media / Q000032:analysis; D005453:Fluorescence; D005875:Gibberellins / Q000378:metabolism; D006878:Hydroxides / Q000378:metabolism; D007211:Indoles / Q000096:biosynthesis; D008722:Methods; D009584:Nitrogen / Q000378:metabolism*; D009586:Nitrogen Fixation; D010084:Oxidation-Reduction; D010937:Plant Growth Regulators / Q000032:analysis / Q000528:radiation effects; D011830:Radiation Effects; D012988:Soil Microbiology; D014466:Ultraviolet Rays; D014815:Vitamins / Q000032:analysis
chemical_list: D000596:Amino Acids; D003470:Culture Media; D005875:Gibberellins; D006878:Hydroxides; D007211:Indoles; D010937:Plant Growth Regulators; D014815:Vitamins; D009584:Nitrogen