Volume No. 7 Issue No.: 2A Page No.: 899-904 Oct. - Dec. 2012

 

ANALYSIS OF NITROGEN AND PHOSPHATE IN ENRICHED AND NON ENRICHED VERMICOMPOST

 

Iyer Shanti R.*, Sethi Rekha and Abraham A. Anitha

Department of Life Sciences, Jain University, Bangalore (INDIA)

 

Received on : September 10, 2012

 

ABSTRACT

 

Chemical fertilizers though have played a significant role in Indian Agriculture, its continuous and concentrated use has disturbed the soil health, which in turn leads to lower crop yield and quality. Besides, use of chemical fertilizers may contribute to many environmental hazards. In view of this, it is desirable to return to practices, which is eco friendly and meets the nutrient depletion and sustain quality food production. The present work was conducted to analyze the comparative percent content of nitrogen and phosphorus in partially decomposed and vermicompost samples and result analysis indicated that the there is a significant increase in nitrogen content. This indicates that nitrogen fixers like Azospirillum in large population have exhibited enhanced nitrogenase activity thereby fixing excessive nitrogen, whereas the phosphate solubilizers have utilized nutrient but not contributed in nitrogen fixation. The phosphorus content in enriched vermicompost with respect to both nitrogen fixers and phosphate solubilizers was found to be on par with the vermicompost in spite of enhanced microbial population.

 

Keywords : Vermicompost, Decomposition, Phosphate solubilizer, Azospirillum, Nitrogenase

 

 

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