This community engagement program was motivated by the high dependence of the Women Farmers Group (KWT) in Varia Agung Village on synthetic fertilizers and pesticides, as well as the underutilization of agricultural and livestock biomass waste. The program aimed to strengthen the capacity and self-reliance of KWT members through the integration of a pyrolysis reactor and bokashi fermentation as a circular economy-based waste management model. The program employed a Participatory Technology Development (PTD) approach combined with the Plan–Do–Check–Act (PDCA) cycle, including needs assessment, training, technology application, technical assistance, evaluation, and sustainability planning. Twenty-five participants were involved in utilizing locally available biomass waste, including rice straw, rice husks, branches, and livestock manure, to produce biochar, liquid smoke, bokashi, and organic pesticides. The results showed that 35% of local biomass waste was utilized, soil pH ranged from 6.0 to 6.7, and the use of synthetic agricultural inputs was reduced by 83%. These findings demonstrate that integrated pyrolysis and bokashi fermentation can strengthen local resource utilization and agricultural input self-reliance while supporting sustainable waste management.
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