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All Journal Jurnal Agroplasma Agro Bali: Agricultural Journal Kreasi: Jurnal Inovasi dan Pengabdian Kepada Masyaraka
Jerry Maulana Siregar
Institut Teknologi dan Sains Padang Lawas Utara
Agriculture, Biological Sciences & Forestry Environmental Science Law, Crime, Criminology & Criminal Justice Social Sciences

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Optimalisasi Pakan Lokal dan Pengolahan Limbah Ternak untuk Meningkatkan Kemandirian Peternak Domba Ekor Tipis Melalui Village Breeding Center di Kelompok Tani Aqikah Resti Rianita; Jerry Maulana Siregar; Siti Yuli Meilanda Sormin; Syafrida Hafni; Ilman Ansori Harahap; Loli Sari Harahap
Kreasi: Jurnal Inovasi dan Pengabdian kepada Masyarakat Vol. 5 No. 3 (2025): December
Publisher : BALE LITERASI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58218/kreasi.v5i3.2309

Abstract

Program pengabdian ini bermitra dengan Kelompok Tani Ternak Aqikah di Desa Sidingkat, Kabupaten Padang Lawas Utara. Fokus kegiatan adalah optimalisasi pakan berbasis sumber daya lokal dan pengolahan limbah kotoran ternak melalui pendampingan Village Breeding Center (VBC) untuk meningkatkan kemandirian peternak domba ekor tipis. Implementasi mencakup manajemen budidaya terpadu, penyediaan pakan berkualitas mandiri, dan konversi limbah menjadi produk bernilai. Metode pelaksanaan meliputi penyuluhan dan pelatihan teknis: (1) penerapan recording ternak dan pemuliaan terencana di VBC, (2) formulasi pakan fermentasi dari bahan lokal berbasis limbah pertanian serta, (3) pengolahan feses dan urin ternak menjadi kompos dan POC (Pupuk Organik Cair). Hasilnya, mitra berhasil memproduksi pakan silase berbasis pakan lokal, mengolah 100% limbah kotoran menjadi kompos/POC, serta mengadopsi sistem pemuliaan terencana untuk menghasilkan bibit unggul domba ekor tipis. Keberlanjutan program ditunjukkan melalui produksi silase rutin dan pengembangan produk turunan limbah, yang dapat berkontribusi signifikan terhadap peningkatan kesejahteraan peternak.
Optimasi Pertumbuhan dan Hasil Dua Varietas Bawang Merah Asal True Shallot Seed (TSS) Terhadap Aplikasi Pupuk NPK dan Magnesium Jerry Maulana Siregar; Raja Aminuddin Siregar; Hilda Yanti Br. Torus Pane; Siti Yuli Meilanda Sormin; Risna Maya Sari
JURNAL AGROPLASMA Vol 13, No 1 (2026): Jurnal Agroplasma Vol 13 No 1 Mei 2026
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v13i1.9389

Abstract

The low productivity of shallots in Indonesia is mainly caused by the use of low-quality vegetative seeds and improper fertilization. The use of True Shallot Seed (TSS) combined with balanced NPK and magnesium fertilization is expected to increase shallot production. This study aimed to optimize the growth and yield of two TSS shallot varieties (Sanren F-1 and Lokananta) under various doses of NPK fertilizer (0, 83.3, 166.6, and 250 kg/ha) and magnesium fertilizer (0, 125, and 250 kg MgO/ha). The research was conducted from February to May 2021 at the experimental field of Universitas Muhammadiyah Sumatera Utara, Medan, at 25 meters above sea level. A factorial randomized complete block design with three factors and two replications was used. The results showed that the Sanren F-1 variety produced better number of leaves (7.0 leaves), number of bulbs per clump (2.7 bulbs), and fresh weight of bulbs per plot (812 g) compared to Lokananta, while the Lokananta variety produced larger bulb diameter (33.8 mm). Application of NPK fertilizer at 250 kg/ha significantly increased plant height, number of leaves, and harvest index. The combination of Sanren F-1 variety without magnesium and 250 kg NPK/ha produced the highest fresh weight of bulbs per plot (1027 g). The interaction between variety, NPK, and magnesium significantly affected all observed growth and yield parameters. The Sanren F-1 variety with 250 kg NPK/ha without magnesium is recommended to increase shallot productivity in lowlands. Keywords: lokananta, magnesium, NPK, sanren F-1, shallot, true shallot seed
Discriminating Estate and Smallholder Agricultural Systems Using a Multi-Sensor Agriculture-Weighted Object-Based Classification Framework in Tropical Landscapes Yudi Triyanto; Jerry Maulana Siregar; Risna Maya Sari; Angga Putra Juledi
Agro Bali : Agricultural Journal Vol 8, No 3 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v8i3.2530

Abstract

The transformation of tropical landscapes due to agricultural expansion constitutes a significant global environmental challenge. Current land-cover classification methods, however, provide limited differentiation among agricultural management systems. This study develops an agriculture-focused land-cover classification workflow that fuses Landsat 9 optical imagery and PALSAR-2 L-band SAR across a ≈2,500 km² study area in Jambi Province, Sumatra, Indonesia, to enhance discrimination of crop systems and improve spatial coherence via object-based enhancement. A 22-class land-cover taxonomy was supported by 14,029 strategically collected training points. Feature engineering produced 29 predictor variables, including conventional vegetation indices, agricultural-specific metrics, water indicators, and SAR-derived structural features. Models were evaluated on an independent test dataset comprising 4,209 samples. An agriculture-weighted Random Forest classifier with strategic class weighting was implemented and followed by Simple Linear Iterative Clustering (SLIC) object-based enhancement to suppress speckle and enforce spatial contiguity. The classification achieved an overall accuracy of 53.7%, with exceptional performance for estate crop systems (F1 = 94%) and reliable forest discrimination. SLIC reduced salt-and-pepper noise by 99.5% and substantially improved spatial coherence metrics, transforming fragmented pixel-based outputs into operationally viable products. Despite these gains, discriminating smallholder mosaics remains challenging and likely requires additional temporal or higher-resolution inputs.
Co-Authors Angga Putra Juledi Hilda Yanti Br. Torus Pane Ilman Ansori Harahap Loli Sari Harahap Raja Aminuddin Siregar Resti Rianita Risna Maya Sari Risna Maya Sari Siti Yuli Meilanda Sormin Siti Yuli Meilanda Sormin Syafrida Hafni Yudi Triyanto