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The Environmentalist

, Volume 28, Issue 3, pp 283–287 | Cite as

Enrichment of vermicomposts prepared from cow dung spiked solid textile mill sludge using nitrogen fixing and phosphate solubilizing bacteria

  • Priya Kaushik
  • Y. K. Yadav
  • Neeraj Dilbaghi
  • Vinod K. Garg
Article

Abstract

Textile mill waste can be vermicomposted if it is mixed in the range of 20–30% with cow dung. This article reports the effect of inoculation, of nitrogen fixing Azotobacter chroococcum strain; Azospirillum brasilense strain and phosphate solubilizing Pseudomonas maltophila, on nitrogen and phosphorus content of vermicomposts prepared from cow dung (CD) and cow dung spiked textile mill sludge (CD + STMS). The CD vermicompost was more supportive to the growth and multiplication of all the three bacteria than CD + STMS vermicompost. In Azotobacter chroococcum treated vermicomposts maximum nitrogen content was recorded between 45 and 60 days [CD␣vermicompost (25.9 ± 0.45 g kg−1) and CD + STMS vermicompost (20.6 ± 0.62 g kg−1)] followed by Azospirillum brasilense inoculation [CD vermicompost (19.4 ± 0.60 g kg−1) and CD + STMS vermicompost (18.6 ± 0.17 g kg−1)]. Phosphorus content in Pseudomonas maltophila inoculated CD vermicompost was 20.8 ± 0.20 g kg−1 and CD + STMS vermicompost was 13.4 ± 0.45 g kg−1 after 75th day of inoculation.

Keywords

Cow dung Solid textile mill sludge Vermicompost Nitrogen Phosphorus Enrichment Bacteria 

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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  • Priya Kaushik
    • 1
  • Y. K. Yadav
    • 1
  • Neeraj Dilbaghi
    • 1
  • Vinod K. Garg
    • 1
  1. 1.Department of Environmental Science and EngineeringGuru Jambheshwar University of Science and TechnologyHisarIndia

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