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All Journal Journal of Community Service and Empowerment
Dewi Rihhadatul Aisy
Department of Biology Education, Faculty of Mathematics and Natural Sciences, University state of Surabaya, Jl. Ketintang Pratama V, Gayungan, Surabaya, East Java 60231, Indonesia
Social Sciences Other

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Utilization of catfish wastewater and onion peels as liquid fertilizer for mustard productivity in Kampoeng Pintar Dewi Rihhadatul Aisy; Herlina Fitrihidajati; Adi Candra; Nurcholis Nurcholis; Aseyan Aseyan
Journal of Community Service and Empowerment Vol. 7 No. 2 (2026): August
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v7i2.43508

Abstract

The utilization of household organic waste as liquid organic fertilizer (LOF) represents an effort to support urban food security and environmental management. This study aims to minimize waste and enhance the knowledge and skills of the Kampoeng Pintar community in processing catfish wastewater and onion peels into LOF, as well as applying it to mustard cultivation to support SDGs 2 and 12. The methods included mentoring and LOF production with pH and nutrient content analysis, followed by demonstration of LOF application on mustard plants using three concentrations: P0 (AB Mix), P1 (LOF 20 mL/L), and P2 (LOF 30 mL/L), each with three repetitions. Plant growth parameters included height, leaf number, and fresh weight. Data were analyzed descriptively using mean and standard deviation. The results showed improved community knowledge and skills in waste processing. The LOF had a pH of 3.8, and the nutrient contents of N, P, K, Fe, and organic C did not meet the minimum standard of the Ministry of Agriculture Decree No. 261/KPTS/SR.310/M/4/2019, while K content and C/N ratio met the standard. The P2 treatment produced the best plant growth. This approach supports SDGs 2 and 12 by increasing mustard productivity and utilizing organic waste.
Co-Authors Adi Candra Aseyan Aseyan Herlina Fitrihidajati Nurcholis Nurcholis