Influence of VAM Fungi, Azotobacter sp. and PSB on Soil Phosphatase Activity and Nutrients (N, P, K, Cu, Zn, Fe and Mn) Status in the Rhizosphere of Stevia rebaudiana (Bert.) Plants


The pot culture experiment was carried out to evaluate the influence of different combinations of microbial inoculants (VAM + AZO + PSB) on soil phosphatase activity andnutrients (N, P, K, Cu, Zn, Fe, Cu & Mn) of Steviarebaudia plant rhizosphere on 20th, 40th and 60th day. The study revealed that the combined application of microbial inoculants onsoil Alkaline and Acid phosphatase activity has been found maximum at 60th day in triple inoculated plants than dual inoculated and control. The results also showed that the soil macronutrients (N, P & K) and micronutrients (Zn, Fe, Cu & Mn) have been found to be maximum at 40th day and 60th day respectively in triple inoculated plants than dual inoculated and control.

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G. Ramakrishnaiah and T. Vijaya, "Influence of VAM Fungi, Azotobacter sp. and PSB on Soil Phosphatase Activity and Nutrients (N, P, K, Cu, Zn, Fe and Mn) Status in the Rhizosphere of Stevia rebaudiana (Bert.) Plants," American Journal of Plant Sciences, Vol. 4 No. 7, 2013, pp. 1443-1447. doi: 10.4236/ajps.2013.47176.

Conflicts of Interest

The authors declare no conflicts of interest.


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