March 2014 Vol. 2 No. 2

Abstract
• Full text
•Reprint (PDF) (382 KB)

Search Pubmed for articles by:
 

Full Length Research Paper

Optimisation of fermentation conditions of phosphate solubilising bacteria- a potential biofertilizer

Prasad M. P.

Sangenomics Research Lab, Domlur Layout, Bangalore 560071, India.

*Corresponding Author's E-mail: prasad_m_p@hotmail.com; Ph.: 9844357929

Accepted February 07, 2014

Abstract

Biofertilizers have become one of the most important component of integrated nutrient management for sustainable agriculture as they are cost effective and renewable source of plant nutrients to supplement the chemical fertilizers. Phosphate solubilising bacteria are on the major source of biofertilizer as they have the ability to convert insoluble forms of phosphorus to an accessible form leading to increase in the phosphorus uptake by plants. The present investigation deals with optimisation of various parameters for mass production of Phosphate solubilising bacteria isolated from rhizosphere soil samples of Maize and Tomato plants. They were identified as Bacillus megaterium and Pseudomonas aeruginosa. Mass production was carried out at the optimised condition in submerged batch fermentation. These mass cultures can be used further as potential biofertilizer by packing in suitable carrier materials and added to rhizosphere soils directly or through application with the seeds.

Keywords: Rhizosphere, Phosphate solubilisation, Biofertilizer, Bacillus megaterium, Pseudomonas aeruginosa.