Farmers in Subak Taman, Bali, learned to make compost enriched with Trichoderma fungi, which naturally suppresses soil-borne diseases like root rot and blast while boosting soil health. The training raised farmer knowledge of organic fertilizer production from 40% to 80%, and field use of “trichocompost” increased rice grain yields by 4.4% to 17.4%. It also improved acidic soil (pH 5 7) and reduced dependence on pesticides and chemical fertilizers, supporting sustainable farming practices.