title: Effect of certain chemical fertilizers on the rhizosphere myco-flora of Oryza sativa. I. Nitrogenous fertilizers: ammonium nitrate and urea.
mesh_terms: D005308:Fertilizers; D005658:Fungi / Q000187:drug effects / Q000254:growth & development / Q000302:isolation & purification; D009566:Nitrates / Q000494:pharmacology*; D012275:Oryza; D000644:Quaternary Ammonium Compounds / Q000494:pharmacology*; D012988:Soil Microbiology; D013045:Species Specificity; D014508:Urea / Q000494:pharmacology*
chemical_list: D005308:Fertilizers; D009566:Nitrates; D000644:Quaternary Ammonium Compounds; D014508:Urea