<![CDATA[The greenhouse at UPT SD Negeri Ronggomulyo 1 Tuban has not been optimally utilized as a facility for environment-based learning, while organic waste generated by the school community remains unprocessed into useful products. This community service initiative aims to restore the school's micro-ecosystem by reactivating the greenhouse and implementing eco-enzyme management as an environmental education tool for sixth-grade students. The implementation method involved awareness-raising, outreach, hands-on practice, and mentoring conducted over two days—May 23 and 25, 2026. Activities included cleaning and organizing the greenhouse area, planting ornamental and medicinal plants (TOGA), and training on producing eco-enzymes from fruit and vegetable peel waste. The results demonstrate the successful reactivation of the greenhouse, restoring its function as an environment-based learning laboratory, and the production of two gallons of eco-enzyme intended for use as liquid organic fertilizer. Students showed improvements in knowledge, skills, and environmental awareness through a "learning-by-doing" approach. It is hoped that this program will be sustainable and evolve into an environmentally conscious school culture (green school). ]]>
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