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All Journal Jurnal Ilmu Pertanian Indonesia BIOTROPIA - The Southeast Asian Journal of Tropical Biology JTSL (Jurnal Tanah dan Sumberdaya Lahan) Journal of Degraded and Mining Lands Management Jurnal Solum Caraka Tani: Journal of Sustainable Agriculture JURNAL AGROHITA Agrimas : Jurnal Pengabdian Masyarakat Bidang Pertanian
Mimien Harianti
Agriculture Faculty, Andalas University, Unand Campus, Limau Manis, Padang 25163
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Veterinary Other

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Biochar Quality During Slow Pyrolysis from Oil Palm Empty Fruit Bunches and Its Application as Soil Ameliorant Amsar Maulana; Mimien Harianti; Salma Athiyya; Teguh Budi Prasetyo; Moli Monikasari; Irwan Darfis; Dewi Rezki; Herviyanti Herviyanti
Caraka Tani: Journal of Sustainable Agriculture Vol 40, No 1 (2025): January
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/carakatani.v40i1.93859

Abstract

The optimal utilization of oil palm empty fruit bunch (OPEFB) waste holds significant potential for biomass bioconversion via slow pyrolysis, presenting a promising alternative for producing high-quality biochar as a soil ameliorant. This study investigates the effects of slow pyrolysis temperatures (≤ 300 °C) on the physicochemical properties of biochar derived from OPEFB and evaluates its efficacy as a soil ameliorant. This study utilized a completely randomized design (CRD) with three replications across two experiments. The first experiment assessed the effect of slow pyrolysis temperature on the quality of biochar derived from OPEFB, with treatments set at four temperatures (150, 200, 250, and 300 °C) levels. The second experiment evaluated the impact of the selected biochar on the surface charge of oil palm plantation soil, applying biochar at five different doses (0, 20, 40, 60, and 80 tons ha-¹). The potential temperature of 200 °C in slow pyrolysis had a significant effect on the quality of biochar from OPEFB with a yield ratio of 27.84% char; proximate (91.95% volatile matter and 0.81% fixed carbon), cation exchange capacity (CEC) [167.73 cmol(+) kg-1], and macro and micronutrients (e.g., C, N, P, K, Ca, Si, Fe, Cu, Zn, and Mn). The potential of O-H, N-H, C-H, and C=O functional groups of biochar from OPEFB for nutrient availability and absorption efficiency proven by the effect of 40 tons ha-1 biochar from OPEFB which significantly increased 80% of soil surface charge [pH by 0.80; organic matter (OM) composition by 19.8%, CEC by 11 cmol(+) kg-1] and nutrients [0.93% C; 0.04% N; 17.57 ppm P2O5; 0.65 cmol(+) kg-1 K] on Inceptisols.
Penerapan MOB 6 untuk Mengurangi Emisi Gas Rumah Kaca dari Kotoran Ternak di Kecamatan Kuranji, Padang Mimien Harianti; Gusnidar; Aprisal; Lusi Maira; Gusmini; Oktanis Emalinda; Nofrita Sandi; Nurul Hijri; Retno Meitasari; Zuldadan Naspendra
Agrimas : Jurnal Pengabdian Masyarakat Bidang Pertanian Vol. 5 No. 1 (2026): APRIL
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/agrimas.v5i1.69

Abstract

Kotoran ternak yang tidak dikelola dengan baik dapat melepaskan gas rumah kaca (GRK), khususnya metana (CH₄) dan dinitrogen oksida (N₂O), yang berkontribusi terhadap pencemaran lingkungan dan perubahan iklim. Peternak skala kecil seringkali kekurangan teknologi tepat guna untuk mempercepat penguraian pupuk kandang sekaligus meminimalkan emisi. Program pengabdian masyarakat ini memperkenalkan MOB 6, konsorsium mikroorganisme yang dikembangkan secara lokal, untuk mendukung pengelolaan pupuk kandang ramah lingkungan di Kelompok Peternak Rimbo Tarok Jaya, Kecamatan Kuranji, Kota Padang. Program ini dilaksanakan melalui pendekatan partisipatif yang terdiri dari (1) koordinasi awal dengan kelompok tani, (2) sesi edukasi tentang emisi GRK dan manfaat MOB 6, (3) demonstrasi produksi MOB 6, dan (4) penerapan langsung MOB 6 pada kotoran sapi segar diikuti dengan praktik pengomposan terpandu. Kegiatan tersebut meningkatkan pengetahuan dan keterampilan teknis petani dalam menyiapkan dan menerapkan MOB 6, mengurangi bau pupuk kandang, dan mendorong pengomposan lebih cepat. Program ini menunjukkan bahwa teknologi MOB 6 dapat berfungsi sebagai strategi praktis dan berbiaya rendah untuk meningkatkan pengelolaan limbah ternak yang berkelanjutan sekaligus mendukung mitigasi emisi gas rumah kaca di tingkat masyarakat.
Co-Authors . Gusmini . Herviyanti Agustian Agustian Amsar Maulana Amsar Maulana Amsar Maulana Amsar Maulana Anggun Fitria Yenad Aprisal Aprisal, Aprisal Atang Sutandi Azizah R Darfis, Irwan Dewi Rezki Emalinda, Oktanis Gusnidar Gusnidar, G Hijri, Nurul Jamhari Jamhari Junaidi Junaidi Junaidi Junaidi Lusi Maira Maswar Maswar Moli Monikasari Nofrita Sandi Nurul Hijri Rasti Saraswati Retno Meitasari Salma Athiyya Sri Dewi Murni Supiandi Sabiham Syafrimen Yasin Teguh Budi Prasetyo Tutik Oktaviana Zuldadan Naspendra