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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2019, Volume : 7, Issue : 4
First page : (341) Last page : (345)
Article doi: : http://dx.doi.org/10.18782/2320-7051.7699

Comparative Studies of Concomitant Release of Secondary and Micronutrientsby Potassium Solubilizing Bacteria (KSB) from Different Minerals

Sanjukta Biswas* and M. K. Shivaprakash
Department of Agricultural Microbiology, University of Agricultural Sciences,
GKVK Campus, Bengaluru-560065, India
*Corresponding Author E-mail: sanjuktaa2004@gmail.com
Received: 14.07.2019  |  Revised: 20.08.2019   |  Accepted: 27.08.2019  

 ABSTRACT

Potassium solubilizing bacteria releases potassium from insoluble minerals in the soil and  provide beneficial effects on plant growth by improving soil nutrients and structure and are also economically viable and environment friendly. Potassium solubilizing bacteria (KSB) shows effective interaction between soil and plant systems. Secondary nutrients are required by plants in very smaller quantities and deficiency of these secondary nutrients limits the growth of crop. Calcium, magnesium are the major secondary plant nutrients. The microbial activity of potassium solubilizing bacteria (KSB) potentially solubilizes the secondary nutrients like magnesium and calcium and micro nutrient zinc along with the solubilization of potassium from rock minerals. The present study was focused on to evaluate the ability of solubilization of secondary and tertiary nutrients by KSB isolates, isolated from two different potassium bearing minerals viz., muscovite mica and orthoclase feldspar. Six KSB isolates were selected for the study and out of the six isolates four isolates were found to be capable of solubilizing calcium, magnesium and zinc. Isolate SBF and SDM were the efficient soubilizer of calcium, magnesium and zinc.

Keywords: Potassium solubilizing bacteria, Secondary nutrient, Micro nutrient, Potassium bearing minerals, Biofertilizers

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Biswas, S. & Shivaprakash, M.K. (2019). Comparative Studies of Concomitant Release of Secondary and Micronutrients by Potassium Solubilizing Bacteria (KSB) from Different Minerals, Ind. J. Pure App. Biosci. 7(4), 341-345. doi: http://dx.doi.org/10.18782/2320-7051.7699