Ordinary composting, which requires three months for complete decomposition, is too slow for farmers who plant two or three rice crops a year. The IBS rapid composting method (named after the Institute of Biological Sciences at the University of the Philippines, Los Bafios), speeds up the process with a compost fungus activator, Trichoderma harzianum. The activator complements soil microbes as a source of waste cellulose decomposers, thereby increasing the number of decomposers and the rate of decomposition so farmers can use the compost sooner.
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