PERFORMANCES OF ISOLATED PHOSPHATE SOLUBILIZING BACTERIA ON SOIL MICRO FLORA POPULATION IN GROUNDNUT (Arachis hypogaea L.) UNDER VARIED EDAPHIC CONDITIONS

A. SENGUPTA¹*, S.K. GUNRI², T. BISWAS^3
1Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
²Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
³Department of Agricultural Chemistry and Soil Science, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
* Corresponding Author : amritasenbckv@gmail.com

Received : 01-11-2020     Accepted : 26-11-2020     Published : 30-11-2020
Volume : 12     Issue : 11       Pages : 1922 - 1925
Int J Microbiol Res 12.11 (2020):1922-1925

Keywords : PSB inoculation, Total Bacteria count, Rhizobium population, PSB population, Pot culture, Groundnut, Red and Laterite soil, New alluvial soil
Academic Editor : Dr Vijay Prajapati
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Agronomy, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia, 741252, West Bengal, India
Author Contribution : All authors equally contributed

Present study was designed to compare the effect of inoculation with freshly isolated phosphate solubilizing bacterial (PSB), to ones, used as PSB biofertilizer on microbial population viz., total bacteria, Rhizobium and PSB under in-vivo experiments with groundnut (Arachis hypogaea L.), under new alluvial and red and lateritic soils. Total bacteria count did not vary significantly due to treatment effects over un-inoculated control pots under both red and laterite and new alluvial soils. Overall, bacterial population was higher in new alluvial soil as compared to red and laterite soils. Rhizobia population also exhibited similar trends. However, for both the soils, PSB populations varied significantly, over un-inoculated control at later stages of crop growth

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