cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Cindy Hardianti Nufus
Contact Email
hardianticindy@gmail.com
Phone
+6287808194930
Journal Mail Official
ijop.maksi@gmail.com
Editorial Address
Gedung F Technoparks Kampus IPB Darmaga, PO. BOX 220 Bogor, Jawa Barat
Location
Unknown,
Unknown
INDONESIA
International Journal of Oil Palm
Published by Masyarakat Perkelapasawitan Indonesia
ISSN : 25993496     EISSN : 26142376     DOI : https://doi.org/10.35876/ijop.v7i1
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Environmental Science
International Journal of Oil Palm (IJOP) is an online and print mode, a peer-reviewed research journal published by Indonesian Oil Palm Society (Masyarakat PerkelapaSawitan Indonesia, MAKSI), it provides a global publication platform for researcher, scholars, academicians, professionals and students engaged in research in oil palm industries. The main aim of IJOP is to become the world’s leading journal in oil palm that is preferred and trusted by the community through publishing authentic, peer-reviewed and scientifically developed research articles of international caliber. The journal is published three times in a year, 6-10 papers per publication, and the language of the journal is English. JOURNAL SCOPE IJOP publishes research papers in the felds of soil and crop fertilizer application, seedling preparation, cover crop management, leaf pruning, weed control, control of pest and diseases, insect pollinators management, water management, intercropping, cattle oil palm integration, environmental studies, harvesting technology, IT remote sensing GPS application, mechanization, sustainability standards, policy studies, social and economic studies, smallholders empowerment, palm oil mill improvement, biomass utilization, carbon footprint, water footprint, market studies, refinery, food and nutrition technology (oleofood, food safety, pharmaceutical, and nutraceutical) and also management of soil preparation, inorganic and organic safety, oleochemicals, downstream industry development, supply chain, and market studies. The published articles can be in the form of research articles, review paper or short communications which have not been published previously in other journals (except in the form of an abstract or academic thesis/dissertation or presented in seminar/conference).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 79 Documents
 4   5   6   7   8 
Slow Release Granular Biosilica Fertilizer for Peatland Oil Palm Cultivation Luis Ibanez; Jannati, Mayada
International Journal of Oil Palm Vol. 8 No. 2 (2025)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v8i2.140

Abstract

Indonesia’s tropical peatlands, covering over 14.9 million hectares, are critical for palm oil production but face severeagronomic constraints due to extreme acidity (pH 3.0–4.5), high water retention, low nutrient availability, and poor cation exchange capacity (CEC < 20 cmol(+)/kg). This study develops a slow-release granular biofertilizer tailored for oil palm grown in peat soils. The formulation integrates biosilica derived from calcined empty fruit bunch (EFB) ash, palm biochar, nutrient-rich fermented oil palm biomass, andAzotobacter sp. Biosilica was obtained by calcining EFB ash at 800°C for 4 hours, followed by acid leaching with 1% HCl, dissolution in 2 M NaOH for 2 hours, and precipitation using 3 M NH?OH at 50 °C until reaching neutral pH. The resulting amorphous silica was driedand blended with biochar and 5% cassava starch binder to produceporous granules. These were enriched with Azotobacter sp. (10?CFU/g) and composted biomass as sources of slow-releasing organic NPK. Field-simulated trials in peat soils showed that the formulationraised soil pH by 0.8–1.2 units, improved CEC by up to 54%, andenhanced nutrient uptake: nitrogen by 49.7%, phosphorus by 16.2%, and potassium by 35% compared to controls. The granules maintained structural integrity under saturated conditions and released nutrientssteadily over 30–45 days, aligning with crop demand while minimizing leaching losses. This innovative, peat-specific formulation addresses key soil limitations by improving nutrient retention, buffering acidity, and introducing biological nitrogen fixation. It offers a scalable and eco-compatible solution to enhance the sustainability and productivity of palm plantations on degraded peatlands.
The Effect of Organic and Biological Fungicides on the Development of Ganoderma Fruiting Bodies Widiastuti, Happy
International Journal of Oil Palm Vol. 8 No. 2 (2025)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v8i1.143

Abstract

Ganoderma sp. is the main pathogen of oil palm that also attacks other plants such as rubber, eucalyptus, and acacia. Aside from being a pathogen, this fungus also lives saprobically. This study aims to examine the effect of organic fungicide on the growth of Ganoderma mycelia in vitro using Petri dish and the effect of organic fungicide and biofungicide on the development of Ganoderma fruiting bodies that grow on dead breadfruit trees. In testing on breadfruit wood, organic fungicide was given two times while for biological fungicide only one application for 3 consecutive days. The organic fungicide tested was effective in killing the growth of Ganoderma mycelium in vitro. The field test showed that after three weeks of organic fungicide application, the growth of fruiting bodies was inhibited while the control continued to develop and appeared enlarged. The growth of fruiting bodies treated continued to be inhibited until the second application of organic fungicide and this condition continued after application of trichoderma as biofungicide. At H65, there was higher population of bacteria on the control compared to treated fruiting bodies. On the 104th day, it can be isolated Ganoderma from the control but not from the treated fruiting bodies. These indicate that application of organic fungicide within 26th days has inhibited the growth of fruiting bodies and at 3.5 months, Ganoderma died. After 26th days of fruiting bodies breaking, there is new fruiting bodies from breadfruit wood control but not from the treated. This organic fungicide test needs to be specifically carried out again on fruiting bodies that grow on living plant stems to asses the effectivity as organic fungicide.
Design and Feasibility Analysis of an integrated Zero-Waste Palm Oil biorefinery for Sustainable Aviation Fuel Production and Greenhouse Gas Mitigation Ijop, Admin; Fitriyah, Aidatul
International Journal of Oil Palm Vol. 8 No. 3 (2025)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v8i3.165

Abstract

This study aims to design and assess the technical, environmental, and economic feasibility of an integrated Zero-Waste Palm Oil biorefinery for the production of Sustainable Aviation Fuel (SAF) and other value-added co-products. A quantitative-descriptive approach was employed, integrating process simulation using Aspen Plus V14, Life Cycle Assessment (LCA), and financial modeling to evaluate the system’s performance and sustainability. Primary data were obtained from operational palm oil mills. In contrast, secondary data were sourced from the International Energy Agency (IEA), the International Renewable Energy Agency (IRENA), Statistics Indonesia (BPS), and the Ministry of Energy and Mineral Resources (ESDM) during 2023–2024. The results demonstrate that the integrated biorefinery configuration, which combines thermochemical conversion pathways (pyrolysis, gasification, and Fischer–Tropsch synthesis) with biochemical processes (anaerobic digestion), achieves a mass conversion efficiency of 58.4 percent, net energy efficiency of 72 percent, and an Energy Return on Investment (EROI) of 4.97, exceeding the global bioenergy feasibility threshold of three. The LCA results indicate total Life-cycle emissions of 17.3 g CO?-eq per MJ, representing an 80.6 percent reduction relative to fossil-based Jet A-1 fuel, thereby meeting both CORSIA and RED II sustainability standards. The system also achieves a 95 percent reduction in solid residues, effectively realizing a near-zero-waste operation. Financial modeling reveals a net present value (NPV) of USD 68.2 million, an internal rate of return (IRR) of 17.6 percent, and a payback period of 6.2 years, confirming the project’s economic viability. Overall, this model establishes a scalable pathway for decarbonizing the palm oil industry through circular bioeconomy principles and positions Indonesia as a potential global hub for SAF production aligned with international carbon reduction targets.
Design and Feasibility Analysis of an integrated Zero-Waste Palm Oil biorefinery for Sustainable Aviation Fuel Production and Greenhouse Gas Mitigation Aidatul Fitriyah
International Journal of Oil Palm Vol. 8 No. 3 (2025)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v8i3.165

Abstract

This study aims to design and assess the technical, environmental, and economic feasibility of an integrated Zero-Waste Palm Oil biorefinery for the production of Sustainable Aviation Fuel (SAF) and other value-added co-products. A quantitative-descriptive approach was employed, integrating process simulation using Aspen Plus V14, Life Cycle Assessment (LCA), and financial modeling to evaluate the system’s performance and sustainability. Primary data were obtained from operational palm oil mills. In contrast, secondary data were sourced from the International Energy Agency (IEA), the International Renewable Energy Agency (IRENA), Statistics Indonesia (BPS), and the Ministry of Energy and Mineral Resources (ESDM) during 2023–2024. The results demonstrate that the integrated biorefinery configuration, which combines thermochemical conversion pathways (pyrolysis, gasification, and Fischer–Tropsch synthesis) with biochemical processes (anaerobic digestion), achieves a mass conversion efficiency of 58.4 percent, net energy efficiency of 72 percent, and an Energy Return on Investment (EROI) of 4.97, exceeding the global bioenergy feasibility threshold of three. The LCA results indicate total Life-cycle emissions of 17.3 g CO?-eq per MJ, representing an 80.6 percent reduction relative to fossil-based Jet A-1 fuel, thereby meeting both CORSIA and RED II sustainability standards. The system also achieves a 95 percent reduction in solid residues, effectively realizing a near-zero-waste operation. Financial modeling reveals a net present value (NPV) of USD 68.2 million, an internal rate of return (IRR) of 17.6 percent, and a payback period of 6.2 years, confirming the project’s economic viability. Overall, this model establishes a scalable pathway for decarbonizing the palm oil industry through circular bioeconomy principles and positions Indonesia as a potential global hub for SAF production aligned with international carbon reduction targets.
Global Research Trends on Oil Palm Plantation and Deforestation: A Bibliometric Analysis Edwin Mahatir Muhammad Ramadhan; Suprehatin Suprehatin
International Journal of Oil Palm Vol. 8 No. 3 (2025)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v8i3.134

Abstract

Palm oil is one of the most efficient and widely consumed vegetable oils globally, but its expansion has been linked to tropical deforestation, biodiversity loss, and land use change. As global environmental concerns intensify, scholarly interest in the palm oil-deforestation nexus has grown rapidly. This study offers an updated science mapping analysis of global research on this topic until 10 July 2025. Drawing on 1,622 peer-reviewed articles retrieved from Scopus and Web of Science, we applied bibliometric analysis and science mapping to examine publication trends, thematic structures, collaboration networks, and the intellectual foundations of the field. Findings reveal a sharp increase in research output since the early 2000s, with Environmental Research Letters, Land Use Policy, and PLoS One emerging as the most relevant sources. The most prolific authors and institutions are primarily based in Europe, North America, and Southeast Asia, with the University of Göttingen and Bogor Agricultural University (IPB University) playing central roles. Indonesia now leads in single-country publications, reflecting its growing research capacity and strategic importance in the global palm oil landscape. The existing literature is predominantly framed through ecological and technical lenses, focusing on biodiversity, emissions, and sustainability certification. Keyword and co-citation analyses show emerging themes such as ‘spatial analysis’, ‘machine learning’, and expanding regional focus beyond Southeast Asia. However, critical gaps remain, particularly around social justice, land rights, and indigenous knowledge. This study highlights the need for more inclusive and interdisciplinary research approaches that foreground power dynamics, local voices, and alternative knowledge systems. Additionally, as a major producer and increasingly active research contributor, Indonesia holds strong potential to be a focus in future research agendas. The study provides a strategic foundation for researchers, funders, and policymakers engaged in sustainability and land-use governance.
Automatic Water Flow-Based Soil Moisture Monitoring System Oil Palm Nurseries Dani Kurniawan Dani
International Journal of Oil Palm Vol. 8 No. 3 (2025)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

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

Abstract

There are many challenges and obstacles that often arise when caring for agricultural crops until harvest time arrives. One of the challenges in caring for oil palm seedlings is controlling soil moisture and maintaining the right water content for the seedlings. Many seedlings die because they do not get enough water, and sometimes extreme weather conditions make it impossible to water the plants. Farmers typically do not have the time to regularly monitor soil moisture and irrigation, especially for large areas. Based on this issue, there is a solution in the form of a soil moisture monitoring system with automatic irrigation based on the Internet of Things (IoT) to assist and simplify the management of these challenges. This study aims to design a soil moisture monitoring system with automatic irrigasstion to help farmers maintain soil moisture in seedbeds. This study uses the Research and Development (R&D) method to develop the previous system as a solution to the problem and improve the previous device. The result of this study is a prototype of an automatic irrigation-based soil moisture monitoring system with a DHT11 sensor and a soil moisture sensor. This system was tested based on calibration results showing that the sensor works with a regression equation. The coefficient of determination obtained for the DHT11 sensor was 0.95 and 0.89, for the soil moisture sensor was 0.91, and for the ultrasonic sensor was 1.0. Based on the regression equation obtained, the system can respond well to changes in temperature, humidity, and water levels to monitor soil moisture in seedbeds.
Generative AI-based Decision Support System for Detecting Palm Fruit Quality Algifari Yusuf; Mezan el-Khaeri Kesuma; Siti Amalia Agustin; Riska Amalia
International Journal of Oil Palm Vol. 9 No. 1 (2026)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v9i1.137

Abstract

Indonesia's dominance as a global palm oil producer is challenged by the economic precarity of its 6.9 million smallholder farmers,dual threat to their sovereignty. The first is a structural asymmetry of information and weak bargaining power, making them vulnerable to subjective assessments of Fresh Fruit Bunch (FFB) quality, leading to unilateral price cuts and significant income losses. The second is mounting global market pressure to comply with sustainability standards (ISPO/RSPO),which act as non-tariff barriers through complex traceability and documented quality controls that are difficult for smallholders to meet. To address these challenges, this study designed and evaluated a generative AI-based Decision Support System (DSS) to provide objective analysis and strengthen farmers' decision-making capabilities. The methodology involved using few-shot prompting on the Gemini AI platform, with the system's performance then tested through a controlled technology intervention involving 20 smallholder farmers in South Lampung, a region with a high incidence of price disputes. Key findings indicate that the DSS, through real-time image analysis, can classify FFB maturity with a quantitative accuracy of 80%. Its implementation in the field consistently resulted in a 45% reduction in price disputes and an average increase in selling prices of 9-13%, as farmers utilized validation data from the system during negotiations. The technology achieved a high adoption rate of 80%, driven by increased farmer confidence and direct positive impacts on their income. In conclusion, this DSS has proven not only a valid technical tool but a crucial catalyst for economic empowerment, effectively bridging the information gap and empowering farmers for integration into a more equitable and sustainable global supply chain. Further research is recommended to test the system's scalability and generalization across larger populations in regions like North Sumatra or Kalimantan to validate its efficacy amidst diverse agronomic and socio-economic characteristics
Metamorphosis of Palm Oil Settlement in Forest Areas: Policy Trajectories after Government Regulation Number 45 of 2025 Felix Aglen Ndaru
International Journal of Oil Palm Vol. 9 No. 1 (2026)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v9i1.158

Abstract

Palm oil is a strategic commodity that supports Indonesia’s economy. One of the problems in palm oil governance is the overlap between forest areas and palm oil plantations. This problem has caused Indonesian palm oil to receive a negative response in the international market, prompting the government to formulate a resolution policy since 2010. On September 19, 2025, the government released the latest policy through Government Regulation Number 45 of 2025 on Amendments to Government Regulation Number 24 of 2021 on Procedures for Imposing Administrative Sanctions and Procedures for Non-Tax State Revenue from from Administrative Fines in the Forestry Sector. This policy has caused concern because it deemed detrimental to palm oil industry. The study applies a normative juridical method and attempts to analyze the new contents of Government Regulation Number 45 of 2025 to identify policy recency. The study identifies four substantial provisions in Government Regulation Number 45 of 2025, namely the strengthening of Forest Area Control Task Force; revision of the formula for calculating administrative fines; “repossession” of forest areas; and the removal of the legality of continuing operations in Article 110B scheme. There are three crucial issues that have the potential to cause legal uncertainty, namely the lack of clarity on follow-up actions after “repossession” in conservation and protected forests; the weak principle of enforceability of administrative sanction decisions; and the lack of clarity on the agency that manages non-tax state revenue from administrative fines. The study recommends the government to intensify “repossession” in conservation and protected forests and restore the ecosystems; establish a system for delivering administrative sanction decisions that can be immediately accepted by legal subjects; and appoint an agency to manage non-tax state revenue from administrative fines.
Valorization of Palm Oil Mill Effluent (POME) for Renewable Energy: A Systematic Review on Biogas Potential and Policy Implications in Indonesia Billy Nugraha; Nadiahun Nasywa; Melodi Laora Putri; Soma Satria; Yoga Ulya Mubarok
International Journal of Oil Palm Vol. 9 No. 1 (2026)
Publisher : Indonesian Oil Palm Society /IOPS (Masyarakat Perkelapa-sawitan Indonesia /MAKSI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35876/ijop.v9i1.159

Abstract

Palm Oil Mill Effluent (POME) represents one of the most significant by-products of the palm oil industry, often perceived as a major environmental pollutant due to its high organic load and greenhouse gas (GHG) emissions. However, its valorization as a biogas source offers a promising pathway toward sustainable energy transition in Indonesia. This study presents a systematic literature review (SLR) to evaluate the biogas potential of POME and to explore policy frameworks that support its implementation in the Indonesian context. The review was conducted based on PRISMA guidelines by screening peer-reviewed articles from 2013 to 2024 using databases such as Scopus, ScienceDirect, and Google Scholar. A total of 38 relevant studies were analyzed, covering techno-economic feasibility, conversion efficiency, environmental impacts, and regulatory perspectives. Findings indicate that POME has a high potential for biogas production, with methane yields ranging between 15–28 m³ per m³ of POME under optimized anaerobic digestion processes. Furthermore, several pilot-scale and industrial implementations in Sumatra and Kalimantan demonstrate technical viability. However, challenges remain in terms of infrastructure investment, fragmented policies, and lack of integration with national energy targets. Current regulations, including the Presidential Regulation on Renewable Energy and Ministry of Energy’s roadmap, provide a partial foundation, but clearer incentives and decentralized support mechanisms are needed. This review highlights the urgency of aligning technological potential with comprehensive policy support to accelerate the adoption of POME-to-biogas initiatives, especially among small and medium-scale palm oil mills. The valorization of POME not only contributes to Indonesia’s renewable energy mix but also addresses environmental and socio-economic concerns within the palm oil sector.

Page 8 of 8 | Total Record : 79

 4   5   6   7   8 

Filter by Year

2018 2026


Reset
Filter By Issues
All Issue Vol. 9 No. 1 (2026) Vol. 8 No. 3 (2025) Vol. 8 No. 2 (2025) Vol. 8 No. 1 (2025) Vol. 7 No. 3 (2024) Vol. 7 No. 2 (2024) Vol. 7 No. 1 (2024) Vol. 6 No. 2 (2023) Vol. 6 No. 1 (2023) Vol. 5 No. 2 (2022) Vol. 5 No. 1 (2022) Vol. 4 No. 2 (2021) Vol. 4 No. 1 (2021) Vol. 3 No. 3 (2020): September 2020 Vol. 3 No. 2 (2020): May 2020 Vol. 3 No. 1 (2020): January 2020 Vol. 2 No. 3 (2019): September 2019 Vol. 2 No. 2 (2019): May 2019 Vol. 2 No. 1 (2019): January 2019 Vol. 1 No. 3 (2018): September 2018 Vol. 1 No. 2 (2018): May 2018 Vol. 1 No. 1 (2018): January 2018 More Issue