Empowering Sustainable Agriculture Through Liquid Organic Fertilizer Produced from Agricultural Waste in the Tunas Harapan Community, Balikpapan

Hizkia Alpha Dewanto (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Gusti Umindya Nur Tajalla (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Ade Wahyu Yusariarta Putra Parmita (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Yashika Andini Mulyadi (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Dini Indrawati (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Nabila Ofelia (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Ahmad Ardyansyah Oktafandhi (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)
Dwi Chandriyan Sinaga (Environmental Engineering Department, Faculty of Civil Engineering and Planning, Institut Teknologi Kalimantan)
Hutama Prastya (Environmental Engineering Department, Faculty of Civil Engineering and Planning, Institut Teknologi Kalimantan)
Syifa Syaffanah Mumtaz Ramadhan (Environmental Engineering Department, Faculty of Civil Engineering and Planning, Institut Teknologi Kalimantan)
Ulul Azmiyah (Environmental Engineering Department, Faculty of Civil Engineering and Planning, Institut Teknologi Kalimantan)
Adji Pramana Putra (Materials and Metallurgical Engineering Department, Faculty of Industrial Technology and Agroindustry, Institut Teknologi Kalimantan)

Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement)
Vol 12, No 3 (2026): September

The Tunas Harapan farming community, located in North Balikpapan, Balikpapan, Indonesia, has been engaged in agriculture for decades. Current fertilizer subsidy regulations have limited access to synthetic fertilizers, which were previously essential for agricultural activities. This community service initiative aimed to address the dual issues of agricultural waste management and organic farming benefits by introducing methods for producing and applying liquid organic fertilizer. The program was conducted from February 24 to May 23, 2024. It required extensive collaboration with the farming community to ensure a comprehensive understanding of the production process and use of the organic fertilizer. The production of liquid fertilizer was successful. Measurement of the crop growth rate during the pilot crop planting project demonstrated the suitability of the organic fertilizer, which reduced the crop cycle duration by an average of 23.3% compared with non-fertilized crops. A questionnaire survey revealed that the Tunas Harapan community was satisfied with the usefulness of the program, with 65% of respondents strongly agreeing and 35% agreeing.