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All Journal Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Pertanian Agros JURNAL AGROHITA JAST : Jurnal Aplikasi Sains dan Teknologi Abditani : Jurnal Pengabdian Masyarakat Jurnal Agronomi Tanaman Tropika (JUATIKA) Asian Journal of Agriculture Agro Bali: Agricultural Journal Journal of Agriculture and Applied Biology Agricultural Science Journal of Agriculture and Applied Biology ( JAAB) Jurnal Pustaka Mitra : Pusat Akses Kajian Mengabdi Terhadap Masyarakat Journal of Applied Agricultural Science and Technology Jnana Karya International Journal of Engineering Continuity AGROLAND: The Agricultural Sciences Journal
Purba, Jhon Hardy
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Panji Sakti Singaraja, Bali
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The Impact of the Covid – 19 Pandemic on Runway Service Life : (Case Study: Soekarno Hatta International Airport) Yacub, Garin; Setyawan , Ary; Handayani , Dewi; Purba, Jhon Hardy
International Journal of Engineering Continuity Vol. 3 No. 2 (2024): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v3i2.303

Abstract

Government policies that carry out large-scale social restrictions during the Covid-19 period have had an impact on reducing air traffic both for landings and takeoffs, which will have an impact on the life of runway services. Service life is the strength of road pavement in standing the repetition of permit loads before experiencing failure, by knowing that the service life can be directly used to determine the right time for runway maintenance. The purpose of this research is to determine the impact of the Covid-19 pandemic on the life of runway services. The method used in this research is the FAA method with the help of FAARFIELD software, this software calculates the service life based on the CDF value of each aircraft. The data used is secondary data in the form of aircraft type data, CBR ground, and existing pavement data. From the results of the research, it is known that the COVID-19 pandemic has a positive impact on the life of runway service by increasing the life of runway service by 4 years, where in the condition of covid-19 conditions it has a CDF value of 0.20 with a service life of 19 years and in normal conditions the CDF value is 0.22 with a service life of 15 years. The results of this research contribute to decision-making in carrying out maintenance and repairs on the runway of Soekarno Hatta International Airport so that the runway can operate sustainably in accordance with performance requirements throughout the life of the plan, to maintain flight safety and comfort.
Land Suitability of Wani Fruit (Mangifera caesia) for Fruit Development in Mount Batur, Kintamani, Bali Yuniti, I Gusti Ayu Diah; Sasmita, Nanang; Purba, Jhon Hardy; Komara, Liris Lis
Journal of Applied Agricultural Science and Technology Vol. 8 No. 2 (2024): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v8i2.245

Abstract

Bali Province is one of the local mango producers, namely Wani fruit. Wani fruit (Mangifera caesia) is a local Balinese fruit that has the potential to be developed. Wani fruit production in Bali has decreased due to fewer trees in community gardens. This study aims to determine the suitability of land for wani fruit plants on the slopes of Mount Batur Kintamani. Evaluation of land based on agroecological zones includes slope, drainage, humidity and temperature. Sampling used composite sampling based on agroecological zones and data analysis using descriptive and comparative methods. The results of research on the suitability of Wani fruit land in Kintamani show three classes, namely moderately suitable (CS), marginally suitable (SM), and not suitable (TS) with the main limiting factors being slope, texture, temperature, effective depth and rainfall. Based on the results of research on the Kintamani area, Mount Batur is suitable for the development of Wani Fruit in Bali. Primarily for Horticultural and Conservation purposes for the protection of local species. Based on agroecological zones, the land area in the Kintamani Bali area that can be developed for Wani fruit plants are zones I, II and III with an area of 21,476 Ha, which is 58.53% of the area of Kintamani. The distribution of agroecological zones suitable for the development of Wani fruit in zone I and II land units is predominantly spread in residential plain areas, and land units in zone III are spread in hilly areas.
Comparative Study: Internal Marketing Value of Shallot Hydroponic Performance Using NFT vs. DFT Across Two Growth Periods Sundari, Ristina Siti; Pauzy, Depy Muhamad; Firmansyah, Hary; Arif, Arif; Purba, Jhon Hardy
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.v8i3.2240

Abstract

Urban farming has emerged as a strategic response to the challenges of land scarcity and food security in metropolitan areas. This study investigates the financial performance and internal marketing value of shallot (Allium cepa var. aggregatum) agribusiness cultivated hydroponically using Nutrient Film Technique (NFT) and Deep Flow Technique (DFT) systems across two planting cycles. Conducted as a case study at P4S Galih Jaya, the research employed a quantitative descriptive approach, combining direct observation, financial documentation review, and structured stakeholder interviews. Key metrics, production output, net income, Benefit-Cost (B/C) ratio, and Break-Even Point (BEP), were calculated using standard agribusiness financial formulas. Internal marketing indicators, including employee understanding, decision alignment, and motivation, were assessed through pre- and post-cycle surveys and integrated into participatory training sessions. Results indicated that the DFT system in cycle 2 yielded the highest net income (IDR 2,036,725) and B/C ratio (3.6), while the NFT system in cycle 1 incurred a financial loss (IDR -10,155) with a B/C ratio of 0.9. These findings were embedded into internal communication tools and stakeholder training sessions to foster data-driven decision-making. Internal marketing indicators showed marked improvement between periods, demonstrating the strategic value of integrating financial literacy into agribusiness operations. The study concludes that the selection of a hydroponic system not only affects profitability but also internal stakeholder engagement. The comparative study framework offers a replicable model for urban farmers seeking to align technical performance with internal adoption and strategic planning. Further research is recommended across successive planting periods to assess long-term viability and deepen internal marketing impact.
PELATIHAN BUDIDAYA KOPI TERPADU DAN STRATEGI PENGEMBANGAN AGRIBISNIS BERBASIS AGROWISATA DI DESA WANAGIRI Prabawa, Putu Shantiawan; Parmila, I Putu; Madiarsa, I Made; Suarsana, Made; Suwardike, Putu; Wiryanata, I W G; Purba, Jhon Hardy; Arta jaya, I Dewa Putu
Jnana Karya Vol 6, No 2 (2025)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Program Pengabdian kepada Masyarakat (P2M) oleh Program Studi AgroteknologiFakultas Pertanian dan Teknik Universitas Panji Sakti dilaksanakan di Desa Wanagiri,Kecamatan Sukasada, Kabupaten Buleleng, yang dikenal sebagai sentra kopi Arabikaunggulan. Kegiatan ini bertujuan meningkatkan kapasitas petani dalam penerapan GoodAgricultural Practices (GAP) serta penguatan agribisnis kopi berbasis agrowisata. Metodeyang digunakan adalah Participatory Action Learning System (PALS) melalui tahapansosialisasi, pelatihan, penerapan teknologi, pendampingan, dan keberlanjutan program.Hasil kegiatan menunjukkan peningkatan pengetahuan dan keterampilan petani dalampembibitan, budidaya kopi berbasis GAP, serta pencatatan keuangan kelompok.Berdasarkan hasil pretest dan posttest, tingkat pemahaman peserta meningkat dari 38,33%menjadi 66,67% dengan kategori baik. Penerapan alat ukur pH tanah portabel danpenggunaan media pembibitan berbasis biochar terbukti meningkatkan kualitas bibit kopi.Selain itu, kegiatan ini telah dipublikasikan melalui media daring untuk memperluasdampak diseminasi. Program ini berkontribusi terhadap peningkatan produktivitas,kemandirian kelompok tani, dan penguatan ekosistem agribisnis kopi berkelanjutan diDesa Wanagiri.
Analysis of Runway Pavement Thickness Using FAA and LCN Methods Yacub, Garin; Aulia, Askia Esa; Birahmatika, Lilla Anjani; Purba, Jhon Hardy
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v11i4.64080

Abstract

Runways are crucial components of airport air transportation systems, serving as the primary surfaces for aircraft takeoffs and landings. To withstand the repetitive loading from various aircraft types, runway pavements must be designed with precise thickness in accordance with applicable technical standards. Despite the availability of various design guidelines, a notable research gap exists in the comparative evaluation of these methods for high-traffic runways to balance structural safety with modern economic and environmental sustainability goals. This study addresses this gap by analyzing the pavement thickness of Runway 3 at Soekarno-Hatta International Airport using two widely applied calculation methods: the Federal Aviation Administration (FAA) method and the Load Classification Number (LCN) method. The analysis utilized secondary data obtained directly from PT Angkasa Pura II, encompassing the dominant aircraft type (Boeing 737-800), annual aircraft movement volume, subgrade California Bearing Ratio (CBR) value (6%), and the specifications of the applied pavement materials. Calculations indicate that the FAA method requires a total pavement thickness of 990 mm, whereas the LCN method yields a lower thickness requirement of 889 mm. These findings demonstrate that the LCN method is more efficient than the FAA method within the context of Runway 3. The practical implications of this 101 mm difference in thickness are highly significant; the application of the LCN method directly contributes to reduced construction costs, minimizes material consumption, and supports sustainability objectives by lowering carbon emissions during the production and construction phases. In conclusion, this study strongly recommends the adoption of the LCN method in the development of modern airport infrastructure, as it has proven capable of meeting stringent safety standards while comprehensively optimizing economic efficiency and infrastructure sustainability.
Optimizing banana corm-based local microorganisms for reduced NPK fertilization in pak choi (Brassica rapa) PURBA, JHON HARDY; SUARMIKA, I GUSTI MADE; PRABAWA, PUTU SHANTIAWAN
Asian Journal of Agriculture Vol. 10 No. 1 (2026)
Publisher : Smujo International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/asianjagric/g100145

Abstract

Abstract. Purba JH, Suarmika IGM, Prabawa PS. 2026. Optimizing banana corm-based local microorganisms for reduced NPK fertilization in pak choi (Brassica rapa). Asian J Agric 10 (1): g100145. https://doi.org/10.13057/asianjagric/g100145. This study evaluated the effectiveness of banana corm-based local microorganisms (MOL) in reducing inorganic NPK fertilizer, particularly nitrogen, phosphorus, and potassium, inputs while maintaining pak choi (Brassica rapa) productivity, as measured by fresh and oven-dry biomass. This study quantitatively evaluates MOL × NPK interactions and identifies the agronomic optimum MOL dose using regression analysis, a topic that has rarely been addressed in previous MOL studies. The experiment was conducted from December 2023 to February 2024 in a lowland tropical agroecosystem in Bali, Indonesia, using a factorial Randomized Complete Block Design with two factors: three MOL doses (0, 30, and 60 mL polybag-¹) and four NPK levels (100%, 75%, 50%, and 25% of the recommended dose). Growth and yield parameters included plant height, leaf number, leaf area, and fresh and oven-dry biomass of shoots, roots, and total plants. Analysis of variance showed that MOL application significantly affected leaf area, root biomass, and total biomass (p < 0.05), whereas NPK level alone was not significant. However, a significant MOL × NPK interaction was observed for root and total biomass (p < 0.05). The 30 mL MOL treatment combined with 50-75% NPK produced the highest biomass, indicating a synergistic effect and allowing up to a 50% reduction in inorganic NPK fertilizer without loss of productivity. Quadratic regression analysis identified an agronomic optimum MOL dose of approximately 33 mL polybag-¹ under reduced NPK conditions (R² = 0.82). This study provides quantitative evidence that integrating MOL with reduced NPK fertilization improves nutrient-use efficiency in pak choi cultivation. However, the results are based on a short-term pot experiment, and field-scale validation is required. The integration of locally available organic microbial inputs offers a promising approach to support more sustainable and cost-effective vegetable production systems.
APPLICATION OF COW MANURE, UREA AND NPK FERTILIZER COMBINATION ON THE GROWTH OF PALM OIL (Elaeis guineensis Jacq) IN PRE-NURSERY Setyawan, Heri; Rohmiyati, Sri Manu; Purba, Jhon Hardy
Agro Bali : Agricultural Journal Vol 3, No 1 (2020)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.564 KB)

Abstract

Seedling performance is a prerequisite for successful palm oil cultivation. Determining the growth of seedlings in addition to genetic factors can also be influenced by the provision of nutrients at the beginning of growth. This research was conducted with the aim to get the best combination of cow manure with urea and NPK on the growth of oil palm seedlings in pre-nursery. This experiment used a factorial design, consisting of a single factor arranged in a completely randomized design (CRD), which is a combined application of cow manure, urea fertilizer and NPK fertilizer consisting of 4 combination levels (0.4 g urea + 0.4 g NPK; 0.2 g urea + cow manure fertilizer, 0.2 g NPK + cow manure fertilizer, and 65 g cow manure fertilizer). Research data was analyzed using Analysis of Variance (ANOVA) at 5% significance level. The results showed that administration of a combination of 0.2 g urea + 40 g cow manure produced the best growth of oil palm seedlings, although it had the same effect as a combination of 0.4 g NPK fertilizer + 50 g cow manure, whereas the combination treatment of 0.4 g urea + 0.4 g NPK fertilizer and 65 g cow manure treatment resulted in lower growth of oil palm seedlings.DOI: 10.37637/ab.v3i1.419
Co-Authors Abere Haille Agustina Almaz Giziew Arif Arif Arta jaya, I Dewa Putu Ashagre Asnakew Zewde Atrsaw Anteneh Aulia, Askia Esa Bimantara, Putu Oki Birahmatika, Lilla Anjani Depy Muhamad Pauzy Dessalegn Getu Emam Adem Eviza, Andi Firmansyah, Hary Fitri, Elva Rahmi Habtamu Mossie Haile Abebe Haileslassie Gebremeskel Handayani , Dewi Haregua Feleke Helentina Situmorang HERI SETYAWAN I Dewa Nyoman Arta Jiwa I Gede Suarnaya I Gede Suwarjata I Gede Tirta I Gusti Ayu Diah Yuniti I Ketut Ngurah Arsana I Made Kartika I Made Madiarsa I Nengah Muliarta Ida Ayu Sri Utami Dewi Irwan Febryan Kadek Karimas Sari Ketut Mariasa Kidane Tesfay Laba, I Nyoman Liris Lis Komara Luh Suprami Made Suarsana Mekonnen Assefa Mesfin Bahta Mesfin Bahta Mola Berhe Mukhlis Mukhlis Mulashu Tuemay Nanang Sasmita Negussie Muluneh Siyum Negussie Siyum Nuru Seid Tehulie Nyoman Srilaba Nyoman Srilaba P Shantiawan Prabawa P Sri Wahyuni Parmila, I Putu Parmila, I Putu Prabawa, Putu Shantiawan Prabawa, Putu Shantiawan Putu Bayu Wahyuda Putu Shantiawan Putu Shantiawan Putu Sri Wahyuni Putu Sri Wahyuni Putu Sri Wahyuni Putu Suwardike Rohmiyati, Sri Manu Setyawan , Ary Suarasana, Made Suarmika, I Gusti Made Suarsana, Made Tarikua Fikadu Tewabe Mehiret Tomycho Olviana Wakuma Biratu Wayan Dadi Wayan Dadi Wiryanata, I W G WIRYANATA, I WAYAN GEDE Yacub, Garin