Impact of addition of different carbon and nitrogen sources on solubilization of rock phosphate by phosphate-solubilizing micro-organisms


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Authors

  • V S VORA
  • H N SHELAT

Keywords:

phosphate solubilizing micro-organisms, phosphorus, rock phosphate, carbon source, nitrogen source

Abstract

An experiment was conducted during 1996-97 at Anand to study the effect of different sources of carbon and
nitrogen on solubilization of rock phosphate by different selected strains of phosphate-solubilizing micro-organisms,
viz Bacillus circilans, Bacillus brevis, Bacillus coagulans and Torulospora globosa. Among different carbon sources,
maximum solubilization was observed in glucose, sucrose and fructose. None of the organisms could utilize rock
phosphate in presence of maltose. Among different sources of nitrogen, ammonium sulphate was the best source for all
bacterial strains examined, however it was poorly utilized by the yeast. None of the strains could successfully utilize
sodium nitrate. Torulospora globosa preferred calcium nitrate as nitrogen source.

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Author Biographies

  • V S VORA
    Associate Research Scientist (Microbiology), Gujarat Agricultural University, Anand 388 110
  • H N SHELAT
    Assistant Research Scientist (Microbiology), Biofertilizer Project, Gujarat Agricultural University, Anand 388 110

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How to Cite

VORA, V. S., & SHELAT, H. N. (2013). Impact of addition of different carbon and nitrogen sources on solubilization of rock phosphate by phosphate-solubilizing micro-organisms. The Indian Journal of Agricultural Sciences, 68(6). https://epubs.icar.org.in/index.php/IJAgS/article/view/27566