Enhanced Dose of Azotobacter chroococcum and Bacillus subtilis, Co-immobilised in Vermicompost Based Organic Granules, Increase Biomass Yield and Harvest Index of Wheat (Triticum aestivum L)

It has recently been reported that optimised dose of Azotobacter chroococcum and Bacillus subtilis (Hindustan Bioenergy Ltd.) supplied as charcoal based mixture coimmobilised in cow dung, clay soiland neem leaves in the ratio of 1: 1: 1 and 15% (w/v) acacia gum significantly enhanced growth and yield of wheat (Triticumaestivum L.)(Kumar et al., 2013; 2014a, b; 2015a, b). Due to limitations of the availability of cow dung, we replaced it with vermicompost and Farm Yard Manure (FYM) in similar ratio and the organic matrix based granules were applied in the same amount. Our results reveal that the biofertilisers coimmobilised with vermicompost to prepare organic matrix based super granules enhance the efficacy of A. chroococcum and B. subtilisover cow dung and FYM for the biomass production, seed yield and harvest index (HI) of wheat in earthen pot.