Evaluation of effects of Azotobacter, Azospirillum and Psedomunas inoculation and spraying time of nitrogen on fertilizer use efficiency and growth of Triticale

Document Type : Complete scientific research article

Authors

1 SCINTIFIC MEMBER

2 university of mohaghegh ardabili

Abstract

In order to study the effects of Azotobacter, Azospirillum and Psedomunas inoculation and spraying time of nitrogen on fertilizer use efficiency and growth of Triticale, a factorial experiment was conducted based on randomized complete block design with three replications in research farm of the Faculty of Agriculture, University of Mohaghegh Ardabili in 2012. Treatments were: seed inoculation with plant growth promoting rhizobacteria in four levels containing (without inoculation as control, seed inoculation with Azotobacter chroococcum strain 5, Azospirillum lipoferum strain OF, Psedomunas putida strain 9 and spraying nitrogen fertilizer in four levels (without spraying as control, spraying in boot stage, ear emergence, grain filling period) from urea. Results indicated that spraying of nitrogen fertilizerseed inoculation with PGPR had significant effects on growth indices, yield and yield components at 0.01 probability level. The highest values of total dry matter, crop growth rate, and relative growth rate and leaf area index were observed in Inocu‌lated plants with Azotobacter chroococcum × nitrogen spraying in boot stage and the lowest they were recorded in non seed inoculation and without spraying. Maximum of yield and yield components, fertilizer use efficiency were obtained in seed inculation with Azotobacter chroococcum × nitrogen spraying in boot stage. It seems that in order to increasing theses traits, it can be suggested that be applied nitrogen spraying in boot stage × seed inoculation with Azotobacter

Keywords

Journal of Soil Management and Sustainable Production
Volume 5, Issue 4 - Serial Number 4
March 2016
Pages 115-132

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