THE ROLE OF AZOTOBACTER, ORGANIC AND MINERAL  FERTILIZATION IN BIOMASS ON BREAD WHEAT AND ITSRELATIONSHIP TO GROWTH REGULATOR (IAA)

Salman, N.D.; S.Al- Shamry, A.

	THE ROLE OF AZOTOBACTER, ORGANIC AND MINERAL FERTILIZATION IN BIOMASS ON BREAD WHEAT AND ITSRELATIONSHIP TO GROWTH REGULATOR (IAA)
IRAQ JOURNAL OF AGRICULTURE
Article 1, Volume 18, Issue 1, 2013, Pages 0-0
Authors
N.D. Salman; A. S.Al- Shamry
Abstract
A pot experiment was conducted in woody canopy of Soil Sciences and Water Resources – College of Agriculture - Abu Ghraib - University of Baghdad for the season 2009. Using bio-organic –mineral fertilization, to study their effect on the distribution of growth regulator and numbers of bacterial cells in wheat rhizosphere planted in sandy loam soil and treatments were : Azotobacter application and non application and four levels of organic matter (0, 0.75 , 1.5 and 2.25 tons. ha-1) and three levels of NPK (0, 50% and 100% of the fertilizers recommendation) and triplicates . experiment included 72 experimental units according to randomized complete block design. Results showed that the application of bio-bacterial fertilizer led to a significant increase in branching and flowering stages in the IAA effect where increase was (188.9%, 504.4%) and Fe 50.2% and Zn 54.1% respectively , as compared to the control treatment. Numbers of bacterial cells increased with plant growth in a ratio of 128.9% between shoot growth and maturity and they kept 25.22 x 104 numbers in the final maturity stage. Conclusions are that the increase in Azotobacter with plant growth, that gave a parameter of production increase because Azotobacter in rhizospher leads to the increase of root hairs then different elements increased that enhanced plant growth due to the excretion of growth activator material.

Statistics Article View: 84 PDF Download: 32