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All Journal AGROEKOTEKNOLOGI Jurnal Sosial Ekonomi Pertanian JTSL (Jurnal Tanah dan Sumberdaya Lahan) SAINS TANAH - Journal of Soil Science and Agroclimatology Martabe : Jurnal Pengabdian Kepada Masyarakat jurnal Ilmu Pertanian (Agricultural Science) Agro Bali: Agricultural Journal Jurnal Agro Estate Journal of Students‘ Research in Computer Science (JSRCS) Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Jurnal Pendidikan, Sains dan Teknologi Bigint Computing Journal
T Sabrina
Department Of Agriculture, Faculty Of Agriculture, Universitas Sumatera Utara.
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences

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MENGUBAH SAMPAH MENJADI PELUANG: MENDAUR ULANG PLASTIK DAN MENGOLAH SAMPAH RUMAH TANGGA Rahmawaty Rahmawaty; Abdul Rauf; T. Sabrina; Mohd Hasmadi Ismail; Seca Gandaseca; Muhammad Fuad Abdullah; Peter Aning Tedong; Arif Nuryawan; Darmadi Erwin Harahap; T. Alief Aththorick; Siti Kholizah; Azri Syauki; Fitra Syawal Harahap; Ridahati Rambey
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 7, No 5 (2024): Martabe : Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v7i5.1730-1739

Abstract

Sampah organik dan sampah plastik dapat menimbulkan masalah bagi lingkungan, karena membuat lingkungan menjadi kotor dan bau.  Untuk mengatasi masalah ini maka sampah organik dan sampah plastik tersebut diolah menjadi produk lain. Kegiatan ini dilakukan oleh Kelompok Tani Pondok Miri pada bulan Mei 2022. Tujuan kegiatan ini adalah untuk mengimplementasikan praktik daur ulang sampah plastik dan memanfaatkan sampah rumah tangga sebagai medium tanam dan pupuk untuk tanaman obat guna meningkatkan nilai jual dan pendapatan di antara masyarakat, yang diilustrasikan melalui studi kasus di kelompok tani Pondok Miri Asri, Desa Sei Semayang, Sunggal, Deli Serdang. Daur ulang sampah plastik dilakukan dengan menggunakan pipa paralon, botol bekas yang multifungsi untuk menanam tanaman obat, serta galon/gelas air mineral untuk menanam tanaman obat. Pengumpulan sampah plastik, seperti botol plastik, bungkus makanan, bekas pembungkus minyak, bekas gelas plastik, dan sejenisnya, dilakukan di Desa Sei Semayang, Kecamatan Sunggal, Kabupaten Deli Serdang untuk dijadikan wadah tanam bagi tanaman obat.
Utilization of Actinomycetes to increase phosphate availability at different soil moisture conditions in Andisols Namanteran, North Sumatera M Reza Alfikri; T Sabrina; Asmarlaili Sahar
Jurnal Ilmu Pertanian Vol 8, No 3 (2023): December
Publisher : Faculty of Agriculture, Universitas Gadjah Mada jointly with PISPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ipas.77785

Abstract

The high phosphate retention in Andisols causes the availability of P to be low, can not be absorbed by plants. Actinomycetes are capable of solubilizing bound phosphates. This research aimed to identify Actinomycetes in Andisols Namanteran, assess their ability to increase phosphate availability, and understand how they work to increase phosphate availability in this soil. The research design used a factorial randomized block design with 2 factors; factor 1 was Actinomycetes isolate, consisting of A₀ = No Inoculant, A₁ = Inoculant A₁₃₂ (vegetable crops; 32 × 10⁸ CFU mL⁻¹), A₂ = A₄₆₈ (forest plants; 41 × 10⁸ CFU mL⁻¹), A₃ = A₄₅₈ (forest plant; 58 × 10⁸ CFUmL⁻¹), A₄ = A₄₇₁ (coffee plant; 35 × 10⁸ CFU mL⁻¹), A₅ = A₄₅₉ (forest plant; 63 × 10⁸ CFU mL⁻¹), A₆ = A₃₂₁ (hibiscus plant; 37 × 10⁸ CFU mL⁻¹), and A₇ = A₃₅₆ (vegetable plant; 33 × 10⁸ CFU mL⁻¹), and factor 2 was soil water content, consisting of K₁ = 50%, K₂ = 75% and K₃ = 100% of field capacity. The results showed that the availability of P in Andisols increased due to the application of Actinomycetes from 42.46 ppm to 159.20−266.60 ppm. The population of Actinomycetes in Actinomycetes treatment ranged from 27.33−31.58 × 10⁸ CFU mL⁻¹), with a soil pH of 4.41. Water content of 100% was the best in increasing soil pH and Actinomycetes population, but not having significant effects on the available P of the soil. The results of molecular identification of Actinomycetes that have the best potential in dissolving P include A₃>A₅>A₂>A₄>A₁.
Evaluasi Tata Kelola Teknologi Informasi pada Percetakan Kenangan Menggunakan Framework COBIT 5 Arjuna Sitepu; Miftahul Jannah; Sabrina Putri; Rizki Kurniawan
Bigint Computing Journal Vol 1 No 1 (2023)
Publisher : Ali Institute of Reseach and Publication

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55537/bigint.v1i1.607

Abstract

Untuk dapat memberikan pelayanan yang maksimal kepada masyarakat, maka perlu adanya Tata kelola Teknologi Informasi (TI) yang baik. Sistem Manajemen TI yang tidak efektif dapat menyebabkan kerugian bisnis, biaya tak terduga, kualitas penggunaan TI rendah dan kegagalan TI memberi nilai bagi perusahaan. Evaluasi tata kelola TI di Percetakan Kenangan bertujuan untuk mengukur tingkat kemampuan dan mengetahui sejauh mana tata kelola TI Percetakan Kenangan dengan mengacu pada referensi COBIT5. Berdasarkan hasil perhitungan tingkat kemampuan yang telah dicapai oleh masing-masing Proses domain EDM, maka kita mendapatkan hasil level kemampuan implementasi TI saat ini di Percetakan kenangan berada pada level 2 (melaksanakan proses TI dan mencapai tujuannya dilaksanakan secara terkelola dengan baik). Masalah ini menunjukkan bahwa penerapan TI di Percetakan Kenangan sudah berjalan dan berprestasi tujuan tetapi tidak ada proses untuk mengkonfirmasi keuntungan dalam pengiriman dan pengoptimalan proses risiko yang ditentukan, dan mencapai hasil yang diinginkan sesuai harapan.
Penerapan Sistem Cloud Computing Dalam Meningkatkan Efisiensi Kerja Pada Organisasi Kesatuan Aksi Mahasiswa Sibolga Tapteng (KAMISTA) dengan Menggunakan Layanan Google Drive Sabrina Putri; Adhe Eva Yolanda; Haryati; Ayulia Indah Utami; Rizka Anisa Putri; Alwi Alwilo Haryada
Jurnal Komputer Teknologi Informasi Sistem Komputer (JUKTISI) Vol. 2 No. 1 (2023): Juni 2023
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juktisi.v2i1.54

Abstract

Application of cloud computing systems in increasing work efficiency in the Sibolga Tapteng Student Action Unit (KAMISTA) organization. We use the Google Drive cloud computing service as a platform to implement the system. The purpose of this study is to evaluate how the application of a cloud computing system can improve work efficiency at KAMISTA.The research method we use is descriptive qualitative, conducting a survey of KAMISTA members to find out the level of use of the cloud computing system before and after implementing the system. We also collect data on the time needed by KAMISTA members to complete tasks before and after system implementation.The results show that there is a significant increase in work efficiency after the implementation of the cloud computing system. KAMISTA members show improvements in the speed of completing tasks and reducing the time it takes to search and access data. In addition, there has been an increase in collaboration and communication between KAMISTA members after the implementation of the system.Based on the results of this study, other organizations can also implement cloud computing systems to improve their work efficiency. And in this KAMISTA organization to continue to develop and increase the use of cloud computing systems to obtain greater benefits.
Penerapan Metode EOQ Pada Sistem Informasi Manajemen Stok Bahan Baku Ayam Broiler Berbasis Web Sabrina Putri; Muhammad Dedi Irawan; Heri Santoso
Journal of Students‘ Research in Computer Science Vol. 6 No. 1 (2025): Mei 2025
Publisher : Program Studi Informatika Fakultas Ilmu Komputer Universitas Bhayangkara Jakarta Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31599/w4gdt918

Abstract

The Economic Order Quantity (EOQ) method is an important inventory management to determine the optimal order quantity to minimize total inventory costs, including ordering costs, storage costs, and stockouts. Companies use technology to make data management easier. With the increasing demand for chicken meat, efficient raw material management is very important to reduce production costs and maintain chicken health. This study found problems faced by companies as a result of manual recording systems that are prone to errors and data loss. The study aims to improve the accuracy of feed management, reduce waste, and ensure proper nutrition for broiler chickens through the implementation of this system. The results of the implementation of this system show improvements in raw material efficiency analysis and stock monitoring. In addition to helping improve the productivity and sustainability of the broiler chicken farming industry, this study offers solutions for companies to overcome current management problems. The system uses the PHP programming language, the codeigniter framework and MySQL as a database.
Functional diversity of bacteria in various saline soil plant vegetations around Sialang Buah Coast, North Sumatra, Indonesia Mariani Sembiring; Juli M. Hutahuruk; Dwi Ningsih Susilowati; Erny Yuniarti; T. Sabrina; Luthfi A. Mahmud Siregar
SAINS TANAH - Journal of Soil Science and Agroclimatology Vol 21, No 2 (2024): December
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/stjssa.v21i2.80075

Abstract

Environmental conditions profoundly influence microbial diversity and activity in soil. For optimal growth, soil microbes face limiting factors such as temperature, moisture, pH, and salinity levels. This study aims to find types of functional bacteria that are able to live in saline soils. The study was conducted in the Soil Biology Laboratory at Universitas Sumatera Utara (USU), Indonesia. Soil samples were collected around the Sialang Buah Coast, Serdang Bedagai Regency, North Sumatra, Indonesia. The method employed in this research was random composite sampling taken from three vegetation types: mangrove forests, grasslands, and oil palm plantations, with sample collection locations influenced by tidal fluctuations. Ten sampling points were taken at each location and then composited for each vegetation type. The results of the study showed that there were ten species of bacteria that were able to live in saline soil, namely Pseudomonas aeruginosa, Burkholderia gladioli, Enterobacter cloacae, Brucella ciceri, Ochrobactrum oryzae, Achromobacter xylosoxidans, Priestia flexa, Enterobacter quasiroggenkampii, Bacillus cereus and Ochrobactrum oryzae. All bacteria found were able to grow on Pikovskaya, Alexandrov, and Jensen media and only seven species of bacteria were able to form biofilms, namely P. aeruginosa, B. gladioli, E. cloacae, B. ciceri, A. xylosoxidans, P. flexa, and E. quasiroggenkampii
Enhancing Compost Quality through Black Soldier Fly Larvae Bioconversion of Young Coconut Coir and Low-Carbon Organic Wastes Dini Mufriah; T. Sabrina; Lisdayani Lisdayani
Agro Bali : Agricultural Journal Vol 9, No 2 (2026)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v9i2.2787

Abstract

Young coconut coir is an abundant high-carbon residue in Medan, North Sumatra, Indonesia, but its direct use as an organic amendment is limited by its fibrous structure and high C/N ratio. This study aimed to evaluate whether mixing young coconut coir with several low-carbon residues could improve the quality of frass produced by black soldier fly larvae. The experiment was arranged in a randomized complete block design with seven substrate treatments and three replications. The treatments consisted of young coconut coir alone and its mixtures with cauliflower leaf waste, pineapple skin waste, chicken manure, quail manure, goat manure, and cow manure. After 14 days of larval treatment, the frass was analyzed for moisture content, pH, total organic carbon, total nitrogen, C/N ratio, total phosphorus, and total potassium. The substrate mixtures significantly affected moisture content, pH, total organic carbon, total nitrogen, C/N ratio, and total potassium (P<0.01), but did not significantly affect temperature and total phosphorus. The mixture with quail manure produced the most favorable frass, characterized by low moisture content (30.84%), the highest total nitrogen (4.15%), the lowest C/N ratio (12.22), and the highest total potassium (4.59%). It also increased total nitrogen by 116.52% and total potassium by 51.38% compared with the initial substrate. These findings demonstrate that combining young coconut coir with nutrient-rich animal manure, particularly quail manure, is an effective strategy for producing nutrient-enriched BSFL frass suitable for use as an organic amendment.
Co-Authors Abdul Rauf Adhe Eva Yolanda Adnan Buyung Nasution alfikri, m reza Ali Ikhwan Alida Lubis Alief Aththorick Alwi Alwilo Haryada Alwi Haryada Andi Andi Andi Pratama Arif NURYAWAN Arjuna Sitepu ASMARLAILI SAHAR Ayulia Indah Utami Azri Syauki Benny Hidayat Daniel Matondang, Deni Elfiati Devi Andriani Luta Diana Sofia Hanafiah Dini Mufriah Doli Saputra Hasibuan Dwi Ningsih Susilowati Ebet Stephanus Romunta Sinulingga Edi Sigit Sutarta Edison Purba Erny Yuniarti Erwin Masrul Fauzi Fauzi Fauzi Fauzi Fitra Syawal Harahap Fitra Syawal Harahap fitria fitria Harahap, Darmadi Erwin Hardy Guchi haryanzelina bancin Haryati Heri Santoso Jannerson Munthe Jonatan Ginting Jonis Ginting Josef Tohap Leonardus Manalu Juli M. Hutahuruk Kemala Sari Lubis Lili Fauziah Lisdayani Lisdayani Luthfi Aziz Mahmud Siregar M. Qodri Nugraha Marahadi Siregar Mariani sembiring Miftahul Jannah mira aripin panjaitan Mohd Hasmadi Ismail Muhammad Dedi Irawan Muhammad Fuad Abdullah Muhammad Isnan Muhammad Riza Hapiza Mukhlis, Mukhlis Netanya Panggabean Nur Ulina Warnisyah S Sebayang, Nur Ulina Warnisyah S Nurhayati Nurhayati Nurul Annisa Lubis Peter Aning Tedong Posma Marbun Rahmawaty, Rahmawaty Razali Risky Ananda Rizka Anisa Putri Rizki Kurniawan Rizky Mardiana Nasution Sarifuddin Sarifuddin Satia Negara Lubis Seca Gandaseca Siti Kholizah Supriadi Supriadi Syafitra Ibadillah Yeni Afrida