Enrichment of vermicomposts prepared from cow dung spiked solid textile mill sludge using nitrogen fixing and phosphate solubilizing bacteria
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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.
KeywordsCow dung Solid textile mill sludge Vermicompost Nitrogen Phosphorus Enrichment Bacteria
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- Edwards, C. A., & Lofty, J. R. (1977). Biology of earthworms (2nd ed., Vol. 9, p. 333). London: Chapman and Hall.Google Scholar
- Jensen, V. (1951). Notes on the biology of Azotobacter. Proceedings of the Society for Applied Bacteriology, 74, 93–98.Google Scholar
- Kale, R. (1991). Vermiculture: Scope for new biotechnology. Calcutta: Zoological Survey of India.Google Scholar
- Okon, Y., Albrecht, S. L., & Buriss, R. H. (1977). Methods for growing Sprillum lipoferum and for counting it in pure culture and in association with plants. Applied and Environmental Microbiology, 33, 85–88.Google Scholar
- Parle, J. N. (1963). A microbiological study of earthworm cast. Journal of General Microbiology, 31, 13–22.Google Scholar
- Pikovskaya, R. E. (1948). Mobilisation of phosphorus in soil in connection with vital activity of some microbial species. Microbiologia, 17, 362–370.Google Scholar
- Premono, E.-M., Moawad, M. A., & Vlek, P. L.G. (1999). Effect of␣phosphate solubilizing Pseudomonas putida on the growth of maize and its survival in the rhizosphere. Indonesian Journal of Crop Science, 11, 13–23.Google Scholar
- Sherman-Huntoon, R. (2000). Latest developments in mid-to-large-scale vermicomposting. Biocycle, 41(11), 51–54.Google Scholar
- Sinha, R. K., Heart, S., Agarwal, S., Asadi, R., & Carretero, E. (2002). Vermiculture and waste management: study of action of earthworms Eisenia foetida, Eudrilus euginae and Parionyx excavatus on biodegradation of some community wastes in India and Australia. The Environmentalist, 22, 261–268.CrossRefGoogle Scholar
- Suthar, S. (2006). Potential utilization of guar gum industrial waste in␣vermicompost production. Bioresource Technology, 97, 2474–2477.Google Scholar