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Enhancement of Cotton Stalks Composting with Certain Microbial Inoculations

Journal: Journal of Advanced Laboratory Research In Biology (Vol.4, No. 1)

Publication Date:

Authors : ;

Page : 26-35

Keywords : Composting; Composting cotton stalks; Chicken manure; Azotobacter chroococcum; Phanerochaete chrysosporium;

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Effect of inoculation with Phanerochaete chrysosporium and Azotobacter chroococcum microbes on cotton stalks composting was studied in an attempt to achieve rapid maturity and desirable characteristics of produced compost. Composting process was maintained for 16 weeks under aerobic conditions with proper moisture content and turning piles. The C/N ratio of the mixtures was adjusted to about 30:1 before composting using chicken manure. Temperature evolution and its profile were monitored throughout the composting period. Mineralization rates of organic matter and changes in nitrogen content during composting stages were evaluated. Total plate count of mesophilic and thermophilic bacteria, cellulose decomposers and Azotobacter were determined during composting periods. The treatment of cotton stalks inoculated with both P. chrysosporium and Azotobacter gave the most desirable characteristics of the final product with respect to the narrow C/N ratio, high nitrogen content and high numbers of Azotobacter. The phytotoxicity test of compost extracts was evaluated. The use of P. chrysosporium in composting accelerated markedly decomposition process, so that 16 weeks composting enough to produce a stable and mature compost suitable for use as fertilizer while the fertilizer obtained by composting cotton stalks mixed with chicken manure and inoculated with microorganisms is highest quality Compost.

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Last modified: 2018-09-18 14:16:03