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Estimation of fixed dintrogen level for some isolates of Azotobacter vinelandii from soils | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 6, Issue 1, 2006, Pages 21-29 PDF (0 K) | ||
| Abstract | ||
| Abstract This study aims to estimate atmospheric dinitrogen that fixed by Azotobacter vinelandii bacteria that isolated form selective soils. Four isolates were obtained and diagnosed from soil samples which collected from Ap horizon for four soils from different agriculture regions in Baghdad governorate by using selective culture medium for Azotobacter vinelandii to obtain pure isolates the diagnosing was done according to Bergyes manual examinations (8th ed.). The results showed that the fixed nitrogen for the isolates of Azotobacter vinelandii in in vitro experiment was ranged from ( 7.0 – 17.8 ) mg of nitrogen for 100 ml of free nitrogen medium . | ||
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