Vol. 7, Issue 3 (2019)
Composting of organic waste materials using the bacterial consortium and its effect on plant growth promotion
Author(s): N Premalatha, SP Sundaram, R Anandham, R Krishnamoorthy and NO Gopal
Abstract: Crop residues are good sources of plant nutrients and are important components for the sustainability of the agricultural ecosystems. Large quantities of crop residues are left in the field, which can be recycled for nutrient supply. Hence, the present study was aimed to isolate and develop the cellulolytic microbial consortium for preparing compost from various crop residues. Further, the prepared compost was tested for their effect on plant growth promotion along with different levels of recommended dose of fertilizer (RDF).Based on xylanase and cellulase activity two bacterial strains (ACC52 and ACCA2) were selected from the total of 15 isolates. Tentatively identified based on morphological and biochemical analysis ACC52 and ACCA2 strains were identified as Bacillus safensis and Enhydrobacter aerosaccus respectively. Use of these two strains as a consortium in the composting of leaf litter resulted in higher bacterial count and lower C:N ratio compared to other agricultural waste as a compost raw materials. Recommended dose of leaf litter compost with 75% of the RDF showed higher germination rate (95%), plant growth (27.7cm) and number of pods (31 pods per plant) of black gram compared to the application of 100% RDF and compost. Results of this study illustrates that the leaf litter compost developed by the microbial consortium mediated decomposition could be faster than normal composting method.
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How to cite this article:
N Premalatha, SP Sundaram, R Anandham, R Krishnamoorthy, NO Gopal. Composting of organic waste materials using the bacterial consortium and its effect on plant growth promotion. Int J Chem Stud 2019;7(3):4751-4756.
