Production of Biofertilizer from Agro- waste by using Thermotolerant Phosphate Solubilising Bacteria

Biofertilizers are eco-friendly and cheap solution for the development of sustainable agriculture. Biofertilizers can also help small and marginal farmers to attain ultimate goal of increasing their crop productivity. The bacterial inoculation of vegetable and agricultural waste can be considered as organic compost containing phosphorus sources suitable to spinach plant growth. In order to prepare biofertilizer, thermo-tolerant phosphate-solubilizing bacteria Bacillus megaterium were collected. The strain possessed amylase, CMCase, and lipase activities and could solubilize calcium phosphate. During composting, biofertilizers inoculated with the tested bacterium namely Bacillus megatarium had a significantly higher temperature, pH, soluble phosphorus content, and germination rate than noninoculated biofertilizer. Adding these bacteria can shorten the period of maturity, improve the quality and increase the soluble phosphorus content. Therefore inoculating thermo-tolerant phosphate-solubilizing bacteria into agricultural and vegetable wastes represent a practical strategy for preparing multi-functional biofertilizer.