The mushroom cultivation business in Cisarua-Lembang not only provides many benefits for farmers but also causes problems of untreated and accumulated bag-log waste. Unmanaged bag-log waste or expired oyster mushroom media can pollute the environment and become the source of contaminants that cause the failure of mushroom cultivation. This research aims to analyze the best mixture of composting activator, goat manure, and urea in composting process of oyster mushroom bag-log waste which can improve compost composition in accordance with compost standard SNI 19-7030-2004. Composting is conducted anaerobically using a closed barrel. Anaerobic composting method is chosen because it can reduce the volume of waste and groundwater contamination as well as more practical to facilitate mushroom farmers in managing bag-log waste generated. Composting is carried out for 15 days with 3 repetitions and using 2 types of activators namely EM4 and Biolite. Data processing in this study using One Way ANOVA and BNt Test on the results that have significant differences. The best composting result is shown on the composting variation with the addition of EM4 and urea with the value of C-organic, N, C / N, P2O5, K2O, pH, temperature and moisture content of 22.97; 0.67, 45, 0.49, 0.45, 6.8, 29⁰C and 37.13% respectively.
Study of the Dielectric Response of Ester Impregnated Cellulose for Moisture Content Evaluation
