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All Journal AGRISAINS Torani Journal of Fisheries and Marine Science Journal of Tropical Soils Jurnal Kreatif Tadulako Online AGROTEKBIS JURNAL ILMU PERTANIAN Jurnal Edukasi Matematika dan Sains Register: Jurnal Ilmiah Teknologi Sistem Informasi Kultivasi Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian TERRA : Journal of Land Restoration Jurnal Penelitian Kelapa Sawit SENTRALISASI Media Akuakultur Martabe : Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Sains dan Teknologi Terapan JURNAL PENDIDIKAN TAMBUSAI Studi Arab Neraca Keuangan : Jurnal Ilmiah Akuntansi dan Keuangan Jurnal Ilmiah Ecosystem Jurnal Hukum Volkgeist Jurnal Pendidikan Teknologi Pertanian Journal of Sylva Indonesiana Akuatikisle: Jurnal Akuakultur, Pesisir dan Pulau-Pulau Kecil Prosiding Seminar Teknologi Kebumian dan Kelautan (SEMITAN Journal De Facto Jurnal Ilmu Manajemen Retail Universitas Muhammadiyah Sukabumi (JIMAT UMMI) Window of Community Dedication Journal Devotion: Journal of Research and Community Service Indonesian Journal of Engagement, Community Services, Empowerment and Development (IJECSED) Dynamic Management Journal Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) Jurnal Ar-Ribh Journal of Social Research Journal of Lex Philosophy (JLP) Journal of Educational Sciences JIVA: Journal of Behaviour and Mental Health Business Management Counseling and Humanities Review Jurnal Studi Pemerintahan dan Akuntabilitas Jurnal Ilmu Kehutanan Jurnal Comparative : Ekonomi Dan Bisnis Easta Journal of Innovative Community Services ABDIMU Jurnal Pengabdian Kepada Masyarakat Mahadi : Indonesia Journal of Law Global Forest Journal ABDIMAS KAUNIAH Digital Business Journal (DIGIBIS) AGROTEKBIS: Jurnal Ilmu Pertanian Nomico Journal of Environmental and Development Studies Rangkiang: Journal of Islamic Economics and Business JURNAL ILMIAH WAHANA LAUT LESTARI (JIWaLL) DIPANEGARA KOMPUTER TEKNOLOGI INFORMATIKA (DIPAKOMTI) AGROLAND: The Agricultural Sciences Journal ABDIANDAYA : Jurnal Pengabdian dan Pemberdayaan Masyarakat INOVASI: Jurnal Ekonomi, Keuangan, dan Manajemen Jurnal Pengabdian Pasca Unisti (JURDIANPASTI) Journal of Biology Science and Education International Conference on Social Science
Abdul Rauf
Universitas Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Public Health Social Sciences Other

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System Research and Optimization of Coffee-Based Agricultural Land as a Sustainable Forest Management Alternative Budiyono Budiyono; Abdul Rauf; Satia Negara Lubis; Sabrina Sabrina
Proceedings of the 1st International Conference on Social Science (ICSS) Vol. 4 No. 1 (2025): Proceedings of the 6th International Conference on Social Science (ICSS)
Publisher : Green Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/icss.v4i1.236

Abstract

Biodiversity decline has significant implications for environmental sustainability, necessitating an integrated approach to environmental planning and management. Environmental degradation is closely linked to socio-economic conditions, particularly poverty and economic growth. In response to this issue, this research aims to analyze the development of coffee-based agroforestry systems in forest areas to optimize land use in Humbang Hasundutan Regency, North Sumatra, Indonesia. The research employs a quantitative approach, with coffee farmers practicing agroforestry in forest areas as the research population and sample. The findings indicate that a more suitable and sustainable agroforestry system for this region is the agrosilvopastoral model, which integrates trees, agricultural crops, and fodder grasses. This system is particularly effective in steep and very steep terrains with shallow and loose soil. Additionally, in basin areas near springs and rivers, agroaquaforestry or agroaquasilvicultural systems are recommended, incorporating agricultural crops, trees, fish ponds, and fodder grass to maintain environmental stability. The implications of this research suggest that implementing these agroforestry models can enhance land productivity, support farmers' economic sustainability, and contribute to environmental conservation in forest areas.  
The Effect of Nutrition Supply Duration and KNO3 Concentration on Melon Growth and Yield Susna, Susna; Mahfudz, Mahfudz; Rauf, Abdul
AGROLAND The Agricultural Sciences Journal (e-Journal) Vol 12 No 2 (2025): December
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/agroland.v12i2.2789

Abstract

This study aimed to evaluate the effect of the interaction between the duration of AB-Mix nutrient solution application and the concentration of Potassium Nitrate (KNO3) on the growth and yield of melon plants. The decrease in the sweetness of melon fruit is often associated with the use of low potassium NPK fertilizers. KNO3 is known to play an important role in improving fruit quality, especially sweetness. This study used a split-plot design with four levels of nutrient application duration (D1, D2, D3, D4) as the main plot and three levels of KNO3 concentration (K0=control, K1=850 ppm, K2=1000 ppm) as subplots, replicated four times to produce 48 experimental units. The results showed that the treatment of nutrient solution application interval (D) significantly affected plant height at 2 and 3 WAP and the number of leaves at 2, 3, 4, and 7 WAP, and the number of female flowers. The application of KNO3 (K) fertilizer significantly affected plant height at 2, 3, and 5 WAP, as well as the level of fruit sweetness (Brix). The interaction between the two treatments showed no significant effect on growth parameters and yield. Treatment D4 (the longest watering duration) resulted in a significant increase in plant height, while D3 produced the highest number of leaves and female flowers. A concentration of 1000 ppm KNO3 (K2) alone increased fruit sweetness.
Respons Pertumbuhan dan Serapan Hara Fosfat Bibit Kelapa Sawit (Elaeis guineensis Jacq.) Pada Media Gambut Yang Diaplikasi Amelioran dan Pupuk Hayati Nanda Rizky Utami; Abdul Rauf; Mariani Sembiring
Jurnal Penelitian Kelapa Sawit Vol 34 No 1 (2026): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v34i1.229

Abstract

This research aims to examine the effect of the application of ameliorants and biofertilizers on growth, phosphorus nutrients in the soil, and nutrient absorption in plants. This research was conducted in a greenhouse at the Faculty of Agriculture, University of North Sumatra, using peat soil, volcanic ash, zeolite, mycorrhiza, and phosphate-solubilizing bacteria. This study used a Randomized Block Design (RBD) with two factors. The first factor is biofertilizer: control, phosphate-solubilizing bacteria (PSB), arbuscular mycorrhizal fungi (AMF), and a combination of PSB with AMF. The second factor is ameliorant: control, volcanic ash, zeolite, and a combination of volcanic ash with zeolite: with 3 replications. The results showed that there was an increase in the height of oil palm seedlings where the best treatment was the application of AMF (1.97% - 7.88%) and the best treatment for the application of volcanic ash (4.27% - 7.07%). In the observation of soil pH, the application of ameliorants had a significant effect (3.53% - 4.5%) on all materials, while the application of biofertilizers also had a significant effect on the increase in soil pH (1.41% - 3.84%) on all materials provided. In the observation of available phosphorus in the soil, the application of biofertilizers affected the increase in the value of available phosphorus in the soil, where the best value was from the application of PSB (10.31%), while the application of ameliorants also had a significant effect where the best treatment was the application of volcanic ash (30.63%). In the measurement of phosphorus nutrient absorption, the application of biofertilizers had a good effect (increased) (13.41%) compared to the control, but in the application of ameliorants, there was a decrease in phosphorus absorption results compared to the control with the lowest value in the application of zeolite (-1.56%). The results of this study indicate that ameliorants and biofertilizers can be recommended for marginal soils, especially peat soils, as supporting materials for the media in oil palm seedling cultivation.
Assessing residential land cover dynamics in Medan Deli Sub-district, Medan City from 2014 to 2024 using GIS technology Syahru Ramadhan; Rahmawaty; Abdul Rauf; Siti Aekbal Salleh; Mohd Hasmadi Ismail; Agus Purwoko; Razali; Suranto
Global Forest Journal. Vol. 4 No. 2 (2026): Global Forest Journal
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/gfj.v4i2.22160

Abstract

Urban growth in Medan Deli Sub-district has intensified demand for settlement land and increased pressure on remaining non-built-up land. This study quantified settlement land cover dynamics in 2014, 2019, and 2024 using Landsat 8 Collection 2 surface reflectance imagery processed in Google Earth Engine and GIS-based post-classification comparison. Seven land cover classes were interpreted: water body, mixed garden, open land, mangrove, settlement, shrubs, and pond. The settlement class remained dominant in all observation years and increased from 1,443.67 ha (74.27%) in 2014 to 1,446.04 ha (74.39%) in 2019 and 1,505.77 ha (77.46%) in 2024. The net settlement expansion during 2014-2024 was 62.10 ha, with the largest gross conversions to settlement originating from open land (114.43 ha), mixed garden (46.65 ha), shrubs (16.96 ha), mangrove (4.29 ha), pond (1.52 ha), and water body (1.17 ha). The change matrix also shows that 122.93 ha of land classified as settlement in 2014 shifted to other classes by 2024, indicating heterogeneous urban land-cover dynamics rather than one-directional expansion alone. These results highlight the need to limit settlement growth, protect green and water-sensitive areas, and incorporate remote-sensing-based monitoring into urban spatial planning in coastal Medan
Alterations in Land Cover over Five Years from 2014 to 2019 on Sembilan Island Rahmawaty; Abdul Rauf; M Hasmadi Ismail; Harry Kurniawan; Charloq; Suranto
Journal of Sylva Indonesiana Vol. 9 No. 02 (2026): Journal of Sylva Indonesiana
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsi.v9i02.15606

Abstract

Reliable land-cover information is required for spatial planning on small coastal islands where plantations, mangroves, settlements, and aquaculture compete within a limited land area. This study analyzed land-cover categories and land-cover change on Sembilan Island, Pangkalan Susu Sub-district, Langkat Regency, North Sumatra, during the 2014-2019 period using satellite-image interpretation and Geographic Information System (GIS) analysis. The materials included the administrative boundary map of Sembilan Island, Landsat-8 imagery for 2014, Sentinel imagery for 2019, land-cover maps, field ground-check data, and supporting literature. Seven land-cover classes were identified: open land, mangrove, oil palm plantation, settlement, paddy field, shrubs, and pond. The island covered 1,509.57 ha. Oil palm plantation increased from 308.32 ha in 2014 to 654.26 ha in 2019, while mangrove increased from 348.19 ha to 448.30 ha. On the other hand, open land decreased from 356.79 ha to 28.30 ha, while shrubs fell from 125.03 ha to 7.48 ha. The transition matrix revealed that the most significant change was from open land to oil palm plantation, totalling 343.81 ha, followed by the conversion of shrubs to mangrove, which accounted for 109.71 hectares. The results reveal a simultaneous trend of plantation growth and mangrove restoration, highlighting the need for improved coastal spatial planning, field verification and regular GIS-based monitoring.
Co-Authors Abbas, Dirvi Surya Abda Abda Abdul Gafur Abdul Wahid Haddade Adam Malik Ade Fitria Agus Iwan Kesuma Agus Purwoko Agustina Ahmad Ahmad Aiyen Tjoa Akbi, Denar Regata AKHMAD NOOR Akram Ista Alfian Malik Alfiansah, Dian Ali Karim Aminullah, Eki Amor, Atika Andi Asni Anggria Septiani Mulbasari, Anggria Septiani Aning Tedong, Peter Anwar Firdaus, Muhammad Anwar, Fahrizal Arif NURYAWAN As'adah, Umi Ashari, Novita Asmidar Asmidar Asran, Asran Asrida Asrida, Asrida Aththorick, T. Alief Atikah, Atik Atsarina, Alyani Aulia Fikri, Hikmal Aulia Putri, Sherly Ayu, Neneng Gusti Ayyub, Fachrie Rezka Az-Zahra, Fitri Axelia Azura, Putri Fadya Bambang Sulistyo Basda, Putra Astaman Bejo Slamet Bejo Slamet Budiyono Budiyono Canaldhy, Rendy Sueztra Chairani Hanum Chairani Hanum Charloq Costa, Juvenal Da Cucut Susanto, Cucut Danial Darbayesa, Deufwira Astika Devia, Eva Dewi, Azzaria Mida Mustika Dhiya, Ghanendra Djalipa, Dedy Doddy Adhimursandi Dwi Andriyani, Dwi DWI NINGSIH SUSILOWATI Edi Purwanto Ekaputra, Mohammad Emilda Kuspraningrum Erwin Setiawan, Erwin Fatwa, Muh Aiman Febrian, Muhammad Adri Febrianto, Hendra Galuh Fikri, Miftahul Fitra Syawal Harahap Fitriana, Amalia Indah Frastika, Sintike Frischa Meivilona Yendi Fuad Abdullah, Muhammad Fujiwara, Takahiro Galuh, Hendra Ghafarunnisa, Desyana Gingga, Flaminggo Gustiani, Lara Puji Hadi, Farhansyah Noer Hajriani, Hajriani Hamdani Hamdani Hamdani Harahap, R. Hamzari Hamzari Hanifah, Khusnul Hany, Rizky Harahap, Darmadi Erwin Hardi Hardi, Hardi Hardin Hardin, Hardin Haromain, Achmad Harry Kurniawan Hasmadi Ismail, Mohd Hasnidar Hasnidar Helza, Zenobia Zalfanda Hendra Pratama Hendra Pribadi Hi Mokhsen, Nurlisa B. Hosea O Siregar, Anggiat I Made Suparta Ibnu Abni Lahaya Idris, Siti Hafsyah Immawati, Siti Asriah Iqbal, M. Fadil Islami, Muh Farhan Ansa Ismail, Mohd Hasmadi Isninar, Isnainar Istiqamah, Annisa Iwan Setiawan Jeki, Jeki Jhon, Arlen Hanel Juharni, Juharni Kalisa, Kalisa Kapitan, Fany Arsanti Kasnir, Muh. Khofifah, Ulin Ni'matul kholizah, Siti Kun Ismawati Kurniawan, Achmad Reza Kusdianto, Kusdianto Lindawati Lindawati Lubis, Erwin Junaidi Lubis, Rahmat Luckieta, Meiliani Luthfi Aziz Mahmud Siregar M Hasmadi Ismail M Hidayat Ma’mur, Ma’mur Mahar Faiqurahman Mahendra Putra Kurnia Mahfudz Mahfudz Mahmoud Abdullah, Mudathir Abdullah MAHMUL SIREGAR Mariani sembiring Marpaung, Agustina Erlinda Marsa, Marsa Marthen Arie Masitah Masitah Masrizal Saraan Matuan, Agus Maulana, Risman Meitry Gunawan, Yanthi Melati, Septiyan Tri Melianto, Donny Mohd Hasmadi Ismail Mr. Irwansyah Muhammad Faiz Barchia, Muhammad Faiz Muhammad Haikal Muhammad Subhan Muhammad Yunus Muhammad Yusron Maulana El-Yunusi Muksinanto, Satrio Murfat, Moh Zulkifli Musfirah, Andi Naharuddin Naharuddin Nanda Rizky Utami Negara, Andi Kusuma Nike Astiswijaya Nilma Zola Noor, Aspyan Novianti, Risa Nur Rizky, Khaikal Nurdiansah, Nurdiansah Nurhikmah Nurhikmah Nurhuda, Hengki Nursalam Nursalam NURUL AZIZAH Nyak Akoeb, Erwin Palintan, Tien Asmara Pamungkas, Wisnu Pepah, Christine Prasetyo, Virga Febri Pratama Bayu Santosa Pratama, Lingga Putra Pratiwi, Linda Dwi Prihantoro, Edi Priyatna, Eka Hendra Puji Gusri Handayani Putra, Dio Rizki Ade Putra, Laurensius Ruiz Putri Azzahra, Vanisya Putri Fitriasari, Putri Putri, Eva Adelia R. Hamdani Harahap Rahayu, Rega Faherza Rahman, Sufirman Rahmawaty, Rahmawaty Raihan, Muhamad Syahrul Ramdan, Rahmat Rauf, Andi Muhammad Ilham Rauf, Muhammad Ilham Razak, Askari Razali Ridwanti Batubara Rismang, Rismang Rizki Hany Rizky Ramadhan, Rizky Rudianto Rudianto Rustam Rustam Sabrina Sabrina Sakka Samudin Salmiah Salmiah Sampeliling, Alexander Saputri, Rita Mayang Sari, Linda Kurnia Sari, Titis Nistia Sarifuddin Sarifuddin Satia Negara Lubis Seca Gandaseca Siagian, M. yusuf Siletty, Susana Simbolon, Rohani Siradjuddin Siti Aekbal Salleh Siti Mujanah Sitorus, Abdoni Soniawati, Soniawati Sonny Sudiar, Sonny Sopiyan, Aldi Sri Kartikowati Suandi Suandi Suarman Subeqi B.P, Reza Galih Sudirman Daeng Massiri Sulasnawati, Asri Sunarya, herni Sunaryo, Dede Suranto Surya Dharma Ginting, Surya Dharma Susan, Nelly Susna, Susna Sutomo, Didit Darmawan Syafiq Akbar, Azriel Syafruddin, A.Ummu Fauziyyah Syahru Ramadhan Syauki, Azri Syawal Harahap, Fitra Syawal, Fitra Syukron Makmun, Syukron T Sabrina T. Sabrina Tanjung, Pia Arpriani Taqiyuddin, Utsman Tarigan, Simon Tarigan, Vita Cita Emia Tarto, Tarto Tedong, Peter Aning Tengku Sabrina Thabrani R, Thabrani R Tovtora S, Feba Dinova Dex Tulus Musthofa, Tulus Usman Made Utami, Kartika Utami, Khairuna Utami, Khairuna Wahyuni, Melli Dwi Wamnebo, Muhammad Ikhsan Wandira, Candra Ade Erna Wanebo, Ikhsan widya astuti Widya Rahayu Ning Tyas, Zuhriana Wini Dirgahayu Wulan, Nawang Wulandari, Nur Siyam Yusuf, Kamil