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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 Biodiversitas Journal of Biological Diversity Nusantara Bioscience
Purba, Jhon Hardy
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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.
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

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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.
Response Of Papaya (Carica papaya L.) Seeds Growth To The Gibberellin (GA3) and Cow Biourine Jhon Hardy Purba; Nyoman Srilaba; Putu Sri Wahyuni; Putu Bayu Wahyuda
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 3 No. 2 (2021): Volume 3 No.2 July 2021
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v3i2.1386

Abstract

Papaya propagation from seeds has a major problem, namely seed germination takes a relatively long time. Experiments to determine the effect of gibberellin and cow bio urine concentrations on the growth of papaya seedlings were carried out at the Main Horticultural Seed Center of the Agriculture and Livestock Service Office of Buleleng Regency with an altitude of ± 200 m above sea level. The experiment used a factorial randomized block design consisting of two factors, namely the concentration of gibberellin and the concentration of bovine bio urine. Application of gibberellin significantly affected plant height, root length, root wet weight, root oven-dry weight, leaf wet weight, leaf oven-dry weight, total fresh weight, and total oven-dry weight. Gibberellin with a concentration of 150 ppm gave the highest total fresh weight and oven-dry weight, namely 14.63 g and 1.44 g respectively compared to other treatments. The concentration of cow bio urine had a significant effect on root length, very significantly on plant height 40 DST and 47 dd, stem oven-dry weight, leaf wet weight, leaf oven-dry weight, total fresh weight, and total oven-dry weight. Biourine with a concentration of 200 ml.l-1 gave the highest yield in total oven-dry weight per plant, namely 1.19 g. The combination of the concentration of gibberellin and bovine bio urine significantly affected the root length of the plant.
Study of Atonic Concentration and Types of Biostimulants Applications on Chili Pepper (Capsicum frutescens L.) Production Jhon Hardy Purba; Negussie Siyum
JURNAL AGRONOMI TANAMAN TROPIKA (JUATIKA) Vol. 7 No. 3 (2025): Jurnal Agronomi Tanaman Tropika (JUATIKA) Vol. 7 No. 3 September 2025
Publisher : LPPM UNIVERSITAS ISLAM KUANTAN SINGINGI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36378/juatika.v7i3.4377

Abstract

The study aims to determine the level of atonic concentration and the type of biostimulant that can increase the yield of small chili peppers in the lowlands. The design used was a factorial Randomized Block Design (RBD) consisting of two factors. The first factor is the concentration of atonic (A), namely: A0 = 0.0 ml / l; A1 = 1.5 ml / l, A2 = 2 ml / l; and A3 = 2.5 ml / l. The second factor is the provision of several types of biostimulants (B), namely: B0 = without biostimulant; B1 = Plant Growth Stimulator; B2 = EM4; B3 = Superbionic Fertilizer. Data analysis used analysis of variance and if there was significance, further testing was carried out with the Duncan Multiple Range Test. The results showed that the urea fertilizer package with a dose of 200 kg / ha, SP-36 50 kg / ha, and KCl 50 kg / ha gave better seed yields than the control but was not significantly different from higher doses of N, P, K fertilizers.
The Impact of the Covid – 19 Pandemic on Runway Service Life : (Case Study: Soekarno Hatta International Airport) Garin Yacub; Ary Setyawan; Dewi Handayani; Jhon Hardy Purba
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.
Optimizing banana corm-based local microorganisms for reduced NPK fertilization in pak choi (Brassica rapa) JHON HARDY PURBA; I GUSTI MADE SUARMIKA; PUTU SHANTIAWAN PRABAWA
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.
EDUKASI PENGELOLAAN SAMPAH ORGANIK BERBASIS SEKOLAH MENJADI KOMPOS MENUJU SEKOLAH SADAR LINGKUNGAN DI SMK N 1 BANJAR I.P Parmila; P.S Prabawa; P. Suwardike; M. Suarsana; Jhon Hardy Purba; W.G. Wiryanata; D.P. Artajaya; G.D. Setiawan; P.A. Ursula
Jnana Karya Vol 7, No 1 (2026)
Publisher : Universitas Panji Sakti

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Abstract

Permasalahan sampah organik di lingkungan sekolah sering kali menjadi beban lingkungan jika tidak dikelola dengan tepat. Pengabdian kepada Masyarakat (PkM) ini bertujuan untuk meningkatkan kesadaran dan keterampilan teknis siswa SMK N 1 Banjar dalam mengolah sampah organik menjadi kompos dan biochar. Metode pelaksanaan meliputi tahap koordinasi, observasi lapangan, sosialisasi teori, praktik langsung (pembuatan kompos dan biochar), serta monitoring evaluasi selama tiga bulan. Hasil kegiatan menunjukkan peningkatan pemahaman 40 siswa kelas X dan XI mengenai pemilahan sampah dan teknologi pengolahan limbah tepat guna. Selain menghasilkan pupuk organik yang bermanfaat bagi taman sekolah, kegiatan ini juga mendorong terbentuknya karakter peduli lingkungan dan peluang kewirausahaan berbasis limbah (green economy). Simpulan dari PkM ini adalah edukasi berbasis praktik mampu mengubah perilaku civitas akademika menuju sekolah sadar lingkungan yang berkelanjutan.
APPLICATION OF COW MANURE, UREA AND NPK FERTILIZER COMBINATION ON THE GROWTH OF PALM OIL (Elaeis guineensis Jacq) IN PRE-NURSERY Heri Setyawan; Sri Manu Rohmiyati; Jhon Hardy Purba
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
Adaptation of Morus alba and Morus cathayana plants in a different climate and environment conditions in Indonesia NANANG SASMITA; JHON HARDY PURBA; I GUSTI AYU DIYAH YUNITI
Biodiversitas Journal of Biological Diversity Vol. 20 No. 2 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200234

Abstract

Abstract. Sasmita N, Purba JH, Yuniti IGAD. 2019. Adaptation of Morus alba and Morus cathayana plants in a different climate and environment conditions in Indonesia. Biodiversitas 20: 544-554. Mulberry (Morus alba L. and Morus cathayana Hemsl.) cultivation business as silkworm feed in Indonesia is increasing, considering the benefits of mulberry economically, ecologically and pharmaceutically. This study aimed to determine the mulberry plants adaptation to the ability of life and growth of mulberry cuttings. The research was conducted at three different places i.e. &nbsp;BPTH Bali, Cianjur Alam Sutra Nursery (West Java) and East Kutai Farming Farm, using Randomized Block Design consisted of mulberry treatments (M. alba and M. cathayana) and three treatments i.e. using Rootone F, Using Organic solution and Control (no added. The results show different growth rates from various regions in Indonesia. Mulberry growth in West Java was the best compared to mulberry which growth in Bali and Kalimantan. The highest live percentage was observed in West Java for M. alba (95%) and M. cathayana (90%), followed by Bali M. alba (85%) and M. cathayana (80%), Kalimantan M. alba (80%) and M. cathayana (75%). The best high parameter of mulberry plant in West Java for M. alba (80cm) and M. cathayana (76 cm), in Bali for M. alba (67 cm) and M. cathayana (76cm), in Kalimantan for M. alba (58 cm) and M. cathayana (50cm). The best mulberry species based on the whole parameter is M. alba in West Java. This means that West Java climate and environmental conditions are good for mulberry cultivation.
Co-Authors Abere Haille Agustina Almaz Giziew Arif Arif Arta jaya, I Dewa Putu Ary Setyawan Ashagre Asnakew Zewde Atrsaw Anteneh Aulia, Askia Esa Bimantara, Putu Oki Birahmatika, Lilla Anjani D.P. Artajaya Depy Muhamad Pauzy Dessalegn Getu Dewi Handayani Emam Adem Eviza, Andi Fitri, Elva Rahmi G.D. Setiawan Garin Yacub Habtamu Mossie Haile Abebe Haileslassie Gebremeskel Haregua Feleke Hary Firmansyah Helentina Situmorang Heri Setyawan I Dewa Nyoman Arta Jiwa I Gede Suarnaya I Gede Suwarjata I Gede Tirta I Gusti Ayu Diah Yuniti I GUSTI AYU DIYAH YUNITI I GUSTI MADE SUARMIKA I Ketut Ngurah Arsana I Made Kartika I Made Madiarsa I Nengah Muliarta, I Nengah I Nyoman Laba I.P Parmila Ida Ayu Sri Utami Dewi Irwan Febryan Kadek Karimas Sari Ketut Mariasa Kidane Tesfay Liris Lis Komara Liris Lis Komara Luh Suprami M. Suarsana Made Suarsana Mekonnen Assefa Mesfin Bahta Mesfin Bahta Mola Berhe Mukhlis Mukhlis Mulashu Tuemay Nanang Sasmita NANANG SASMITA Nanang Sasmita NANANG SASMITA Negussie Muluneh Siyum Negussie Siyum Negussie Siyum Ni Putu Pandawani NOH NESIMNASI Nuru Seid Tehulie Nyoman Srilaba Nyoman Srilaba Nyoman Srilaba P Shantiawan Prabawa P Sri Wahyuni P. Suwardike P.A. Ursula P.S Prabawa Parmila, I Putu Parmila, I Putu Prabawa, Putu Shantiawan Putu Bayu Wahyuda Putu Bayu Wahyuda Putu Shantiawan Putu Shantiawan PUTU SRI WAHYUNI Putu Sri Wahyuni Putu Sri Wahyuni Putu Sri Wahyuni Putu Suwardike Ristina Siti Sundari Sri Manu Rohmiyati Suarasana, Made Suarsana, Made Tarikua Fikadu Tewabe Mehiret Tomycho Olviana W.G. Wiryanata Wakuma Biratu Wayan Dadi Wayan Dadi Wiryanata, I W G WIRYANATA, I WAYAN GEDE Yacub, Garin ZULKARNAEN ZULKARNAEN