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Information Journal Paper

Title

STUDY AGRONOMIC RESPONSE OF CANOLA CULTIVAR OKAPI TO THE APPLICATION OF NITROGEN AND BIO-FERTILIZERS

Pages

 Start Page 291 | End Page 301

Abstract

 In order to investigate the agronomic response of CANOLA cultivar Okapi to the application of NITROGEN and BIO-FERTILIZERS, a split-plot design was conducted based on randomized complete blocks design with four replications. The experimented factors included: NITROGEN fertilizer in three levels (Non application, application of 75 kg N. ha-1 and 150 kg N. ha-1) as main factors and bio-fertilizer in 4 levels (Non inoculation, Azotobacter, Azospirillum and azotobacter +Azospirillum) as sub factors. Investigation the oil seed trait showed that maximum amount was obtained in non application of NITROGEN (45.3%) and that lowest one obtained from NITROGEN application treatments that were located in the same statistically group. The seed oil YIELD results revealed that application of NITROGENous fertilizer increased seed oil YIELD and 75 kg N. ha-1 (922.6 gm-2) and 150 kg N. ha-1 (1029 gm-2) had most seed oil YIELD. Application of all levels of BIO-FERTILIZERS also had superior compare to non application, that could de refers to NITROGEN fixation. It seems that we can decrease chemical fertilizers by application of combined BIO-FERTILIZERS. Also biological YIELD were affected by the experimental treatments. So the most biological YIELD obtained from of 75 kg N. ha-1 and 150 kg N. ha-1 treatments. The combined use of BIO-FERTILIZERS had significant superior to other treatments. The results demonstrated that Harvest index was not affected by any of the treatments and treatments located in the same statistically group. This indicates that increase in biological and grain YIELD follows the same process.

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