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Vol. 7 No. 1 (2026) • Articles
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Implementasi Pengolahan Kotoran Sapi Menjadi Kompos Menggunakan EM4 di Desa Namotongan, Kabupaten Langkat

Muslim Lubis
Universitas Islam Negeri Sumatera Utara
Dio Arif Hanafi Harianja
Universitas Islam Negeri Sumatera Utara
Tasya Ika Saylani Tarigan
Universitas Islam Negeri Sumatera Utara
Natasya Natasya
Universitas Islam Negeri Sumatera Utara
Published: January 10, 2026 Pages: 1-10
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Abstract

Cow manure in Namotongan Village has not been optimally utilized, creating environmental pollution risks. This community service program aimed to provide training on compost production using Effective Microorganisms (EM4) for livestock waste utilization. The program applied a Participatory Action Research (PAR) design, involving 30 participants consisting of farmers, livestock breeders, and local youth. Activities included preparation, socialization, hands-on practice, mentoring, and evaluation. Evaluation used a Likert-scale questionnaire (1–5, 15 items) and compost quality tests based on final temperature (°C), moisture content (%), pH, C/N ratio, color descriptors, and odor assessed by a subjective calibrated scale. Results indicated an increase in mean knowledge scores from 62% to 88% and skills from 58% to 85% (p < 0.05). A total of 80% of participants agreed that the material was relevant, while 75% found the practice easy to implement. The produced compost met quality standards with stable final temperature (31°C), appropriate moisture content, optimal pH, and C/N ratio of 23:1. The training effectively enhanced participants' capacity in livestock waste management and produced quality compost, although economic potential requires further study.

Keywords:
Training Compost Fertilizer EM4 Livestock Waste Community Empowerment
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Author Biographies
Muslim Lubis Universitas Islam Negeri Sumatera Utara

Program Studi Dakwah, Fakultas Dakwah dan Komunikasi, Universitas Islam Negeri Sumatera Utara, Kota Medan, Provinsi Sumatera Utara, Indonesia

Dio Arif Hanafi Harianja Universitas Islam Negeri Sumatera Utara

Program Studi Sistem Informasi, Fakultas Sains dan Teknologi, Universitas Islam Negeri Sumatera Utara, Kota Medan, Provinsi Sumatera Utara, Indonesia

Tasya Ika Saylani Tarigan Universitas Islam Negeri Sumatera Utara

Program Studi Sistem Informasi, Fakultas Sains dan Teknologi, Universitas Islam Negeri Sumatera Utara, Kota Medan, Provinsi Sumatera Utara, Indonesia

Natasya Natasya Universitas Islam Negeri Sumatera Utara

Program Studi Akuntansi Syari'ah,  Fakultas Ekonomi dan Bisnis Islam, Universitas Islam Negeri Sumatera Utara, Kota Medan, Provinsi Sumatera Utara, Indonesia

How to Cite
Lubis, M., Harianja, D. A. H., Tarigan, T. I. S., & Natasya, N. (2026). Implementasi Pengolahan Kotoran Sapi Menjadi Kompos Menggunakan EM4 di Desa Namotongan, Kabupaten Langkat. Jurnal Pengabdian Nasional (JPN) Indonesia, 7(1), 1-10. https://doi.org/10.63447/jpni.v7i1.1642
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