International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 7, Issue:10, October, 2018

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(10): 1961-1970

Effect of Mycorrhizal Co-Inoculation with Selected Rhizobacteria on Soil Zinc Dynamics
Kumari Priyanka Bharti1, Amit Kumar Pradhan1*, Mahendra Singh1,Kasturikasen Beura1, Subrat Keshori Behera2 and Sankar Ch. Paul1
1Department of Soil Science and Agricultural Chemistry, 2Department of Statistics, Mathematics and Computer Application, Bihar Agricultural University,Bhagalpur, Bihar-813210, India
*Corresponding author

Co-inoculation of Arbuscular mycorrhizal fungi (AMF) and certain species of Plant Growth Promoting Rhizobacteria (PGPR) help to bring the poorly soluble nutrients into the soil solution, thus enhancing nutrient uptake. The present investigation was carried out with objectives to study the effect of co-inoculation of AMF and PGPR (viz. Burkholderia cepacia and Azospirillum brasilense) on soil Zn fractions and Zn uptake by maize. A field experiment was conducted in Randomized Block Design with 9 treatments, each replicated thrice. The treatments included an absolute control and 100 % recommended fertilizer dose along with different combinations of AMF with PGPR at varied P doses. Laboratory analysis of experimental soil for Zn fractions and plant-available Zn was done at 2 stages viz., at flowering and after harvesting. Results from the experiment obtained at both the stages show highest values for grain Zn content (52.58 mg kg-1) and its uptake (0.390 kg ha-1) under the treatment where AMF@10kg/ha + Burkholderia cepacia @20g/kg seed + Azospirillum brasilense @20 g/kg seed + 75%P was used. Residual fraction of Zn comprised of more than 80 % of total soil Zn while water soluble-exchangeable Zn accounted for the least (about 1%). The co-inoculation treatments had a significant effect on the water soluble-exchangeable and organically bound Zn, while the oxide bound Zn fractions had higher values in the non-organic treatments i.e. Control (13.4 mg kg-1) and 100% RDF (12.9 mg kg-1). The results for co-inoculation effects can be considered as possible strategies towards improving Zn nutrition to plants.

Keywords: Zinc fractions, Maize, Mycorrhiza, PGPR, Sustainability

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Kumari Priyanka Bharti, Amit Kumar Pradhan, Mahendra Singh, Kasturikasen Beura, Subrat Keshori Behera and Sankar Ch. Paul. 2018. Effect of Mycorrhizal Co-Inoculation with Selected Rhizobacteria on Soil Zinc Dynamics.Int.J.Curr.Microbiol.App.Sci. 7(10): 1961-1970. doi:
Copyright: This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike license.