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All Journal Jurnal Pertanian Agros JURNAL AGROHITA JAST : Jurnal Aplikasi Sains dan Teknologi Abditani : Jurnal Pengabdian Masyarakat Jurnal Agronomi Tanaman Tropika (JUATIKA) 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
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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The effect of solid manure dosage and cow biourine concentration on the growth and yield of shallot (Allium ascalonicum L.) Sembrani variety Jhon Hardy Purba; Made Suarsana; Putu Sri Wahyuni; Ketut Mariasa
Agricultural Science Vol. 7 No. 2 (2024): March
Publisher : Faculty of Agriculture, Merdeka University Surabaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55173/agriscience.v7i2.125

Abstract

The aim of this research was to determine the effect of cow manure and cow biourine on the growth and yield of shallots. This experiment used a factorial experiment with a Randomized Group Design (RAK). The treatment tried consisted of two factors, namely the first factor was the dose of solid manure (O) with 4 levels, namely O0: without manure (control), O1: dose of 5 tons.ha-1 (0.5 kg of solid manure.petak- 1), O2: dose 10 ton.ha-1 (1.0 kg solid manure.plot-1), O3: dose 15 ton.ha-1 (1.5 kg solid manure.plot-1). The second factor is the concentration of cow biourine (U) with 4 levels, namely U0: without cow biourine (control), U1: 10% concentration or 100 ml.l-1 cow biourine, U2: 20% concentration or 200 ml.l-1 cow biourine , and U3: 30% concentration or 300 ml.l-1 bovine biourine. Each combination treatment was repeated 3 times. The treatment dose of solid cow manure had a very significant effect on the wet weight of the crown per hill and the wet weight of the tubers per hill. A dose of solid manure of 10 tons.ha-1 gave the highest wet weight of tubers per hill, namely 146.30 g. The cow biourine concentration treatment had a very significant effect on the oven dry weight of the canopy per hill, the wet weight of the canopy per hill and the number of leaves per hill at the age of 56 days after planting, 42 days after planting. A cow biourine concentration of 20% or 200 ml.l-1 gave the highest wet weight of tubers per hill, namely 127.50. The interaction between solid manure dose and cow biourine concentration had no significant effect on all observed variables.
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.
Co-Authors Abere Haille Agustina Almaz Giziew Arif Arif Ashagre Asnakew Zewde Atrsaw Anteneh Bimantara, Putu Oki 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 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 Prabawa, Putu Shantiawan Putu Bayu Wahyuda Putu Shantiawan Putu Shantiawan Putu Sri Wahyuni Putu Sri Wahyuni Putu Sri Wahyuni Putu Suwardike Setyawan , Ary Sri Manu Rohmiyati Suarasana, Made Tarikua Fikadu Tewabe Mehiret Tomycho Olviana Wakuma Biratu Wayan Dadi Wayan Dadi WIRYANATA, I WAYAN GEDE Yacub, Garin