A characteristic analysis of compost and rhizosperic microorganisms to enhance plant growth

摘要

Composting is associated with reclamation, recycling, treatment and disposal of wastes. Waste management remains the major concern for many industries for years. The process of treating organic waste has benefits such as improved sanitation production of renewable products less load in eco system and is an effective method of degrading organic waste containing hazardous compounds. The present study deals with the conversion of waste organic products into a useful by product, compost which is used to enhance growth of crops with combinations of microorganisms. The physical characteristics such as temperature, pH, ash content, moisture content, carbon content and C: N ratio was determined at every 15 days interval. The microbiological characteristics such as standard plate count, biochemical and physiological tests were done to identity and characterize strain according to Bergey's manual of determinative Bacteriology. The micro flora analysis explains the micro biota at various stages with different characteristic degrading ability. The study reveals the efficiency of these organisms as plant growth promoting rhizobacteria (PGPR). Combinations of microorganisms with compost act as a good biofertilizer which improves the fertility of soil and increases plant growth. Better results are produced by mixed organisms like Azospirillum, Rhizobium and Pseudomonas (T4). The least growth was found in the inoculation of Bacillus and Azotobacter with soil. Based on this study we conclude that the rhizospheric organisms play well as plant growth promoting agents and gives a better yield and growth of plants. It also increases the fertility of soil and does not cause any pollution to the environment and can be commercialized for organic farm practices.