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The Impact of Nitrogen Fixers and Phosphate Solubilizing Microbes on Sorghum (Sorghum bicolor) Yield

Author(s):

V Vijayalakshmi *, S Pradeep, H Manjunatha, V Krishna and V Jyothi   Pages 1 - 11 ( 11 )

Abstract:


Objective: The inoculants mainly nitrogen fixers and phosphate solubilizing microbes had the influence on plant growth attributes. The current study was done to assess the fertilizing activity of A. chroocaccum, B. megathirium strains on growth, yield parameters and nutrient uptake for Sorghum bicolor.

Methods: Isolation, identification of the nitrogen fixing bacterium- A. chroocaccum and Phosphate solubilizing microbe- B. megathirium and the growth and yield parameters of Sorghum bicolor as well as NPK uptake levels were studied.

Results: A. chroocaccum and B. megathirium exhibited proliferation of microbial-population in soil by synergistic interaction with plants and the application increases the availability of NPK in the soil after harvest of crop. These beneficial inoculants are also known to help in the uptake of some other nutrients. The maximum plant beneficial aspects were noticed in the plants inoculated with 100% recommended dose of fertilizer (RDF)+A. chroocaccum+ B. megathirium and least was noticed in the control plants at all growth stages and at the time of harvest.

Conclusion: From the study, it can be concluded that the beneficial effect of A. chroocaccum and B. megathirium is visualized in sorghum crop with improved yield and nutrient uptake. So this species can be used extensively for future inoculation of the Sorghum crop for better growth and development and for good returns in an ecological way.

Keywords:

A.chroocaccum, B.megathirium, Sorghum, Compatability, NPK

Affiliation:

Department of PG Studies and Research in Biotechnology and Bioinformatics, Jnanasahyadri, Kuvempu University, Shankaraghatta. 577451, Shivamogga, Karnataka, University of Agriculture and Horticulture Sciences, Organic Forming Research Centre, Shivamogga, Karnataka, Department of PG Studies and Research in Biotechnology and Bioinformatics, Jnanasahyadri, Kuvempu University, Shankaraghatta. 577451, Shivamogga, Karnataka, Department of PG Studies and Research in Biotechnology and Bioinformatics, Jnanasahyadri, Kuvempu University, Shankaraghatta. 577451, Shivamogga, Karnataka, Department of PG Studies and Research in Microbiology, Jnanasahyadri, Kuvempu University, Shankaraghatta, 577451, Shivamogga, Karnataka



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