Journal of Pure and Applied MicrobiologyVol. 9 No. Special Edition Nov. 2015

Nodulation and Nitrogen Fixation in Tree Legume (Albizia procera) as Affected by Rhizobium Inoculation and N-fertilizer

S. Kolhey, D. Dash*, S.B. Gupta and S.S. Porte

Deparment of Agriultural Microbiology, Indira Gandhi Krishi Vishwavidyalaya, Raipur - 492012, Chhattisgarh, India.

Received on 16 July 2015 and accepted on 09 September 2015

 

ABSTRACT

A nursery experiment was conducted to assess the performance of Albizia procera to Rhizobium inoculation alone and along with 3 levels of N fertilization (N1, N2 and N3 as 50mg, 150mg and 400mg N/seedling). Also to study the influence of Nitrogen on biological fixed nitrogen by A. procera. The A. procera -Rhizobium isolate tested as acidic (5.0 pH) tolerant and salt (30000ppm) tolerant. Due to inoculation in Albizia procera, 2.6 times increase in biomass accumulation was seen, N uptake was increased from 9.293 to 41.326 mg/seedling at 120DAT and nodulation increased from 0.117 to 0.0.412 g/seedling at 90DAT. However significantly maximum biomass accumulation (10.96g/seedling), extra N gain ( 55.44 mg/seedling over control at 120DAT), nodule no. (68/seedling) and nodule dry weight (0.483g/seedling) at 90DAT were obtained at Rhizobium+N2 treatment. Inoculation of Albizia procera was significantly effective and nitrogen application (150mg/seedling) along with inoculation further significantly enhanced symbiotic traits in Albizia procera.

Keywords : Albizia procera , BNF, N uptake, Nodulation and Rhizobium.