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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(1): 1055-1069
DOI: https://doi.org/10.20546/ijcmas.2019.801.115


Evaluation of Microbial Solubilisation of Nano Rock Phosphate
Sudeshna Bhattacharjya1*, Tapan Adhikari2, Samaresh Kundu2, Asha Sahu1 and Ashok K. Patra3
1Division of Soil Biology
2Division of Environmental Soil Science
3Director, ICAR-Indian Institute of Soil Science, Bhopal-462038, Madhya Pradesh, India
*Corresponding author
Abstract:

A laboratory study was conducted to assess the efficacy of the different microbes to solubilise nano rock phosphate. Nano rock phosphate was prepared using a 24 blade FRITSCH Rotar Mill (Model-Pulverizette-14) with a 80µm sieve, followed by high energy ball milling. The nano rock phosphate particles were characterized by Transmission electron microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM), Dynamic Light Scattering (DLS) and X-Ray Diffraction (XRD) analysis regarding their size, shape, morphology, structure and composition. The pure culture of fungi and bacteria were isolated form Bhanpur dumping site, Bhopal, India. The fungal and bacterial isolates were screened on the basis of their phosphate solubilisation potential. The dominant phosphate solubilising strains were Bacillus amyloliquefaciens, Aspergillus flavus and Aspergillus terrus. The quantitative study of phosphate solubilisation form nano rock phosphate was done with the positive strains. Results revealed that Aspergillus flavus and Aspergillus terrus were able to solubilize the nanorock phosphate particles more efficiently (2.87-18.16% more) than the tri -calcium phosphate particles as compared to bacteria. Solubilization of nano rock phosphate was the result of organic acid produced by microbes. The study reflected the potential of nano rock phosphate as a P supplying source along with P solubilising microbes. As to date, there is very meager report on microbial solubilisation of phosphorus from nano rock phosphate; the present investigation therefore has highlighted the scope for future research.


Keywords: Nano rock phosphate, Phosphate solubilisation, P solubilising fungi, P solubilising bacteria
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How to cite this article:

Sudeshna Bhattacharjya, Tapan Adhikari, Samaresh Kundu, Asha Sahu and Ashok K. Patra. 2019. Evaluation of Microbial Solubilisation of Nano Rock Phosphate.Int.J.Curr.Microbiol.App.Sci. 8(1): 1055-1069. doi: https://doi.org/10.20546/ijcmas.2019.801.115