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Oil palm is a leading commodity that makes a major contribution to Indonesia’s economy, yet a significant productivity gap remains between actual and potential yields. A principal cause is suboptimal water management, which leads to flooding during the rainy season and drought in the dry season. This study develops a Conceptual Design (CD) for water management to map existing problems, analyse root causes, formulate improvement measures, and present a macro-level cost estimate for the study site. The research was conducted at an oil palm plantation in East Kalimantan anonymized as “PT XYZ.” The site was selected due to recurrent flooding and a recent change in ownership that limited data availability, making it well-suited for a CD-stage assessment. The objective is to identify water management issues and propose effective recommendations. A quantitative approach integrates primary data from field observations and measurements with secondary data. The analyses cover flood problem assessment, Water Management Zoning (WMZ/ZPA), rainfall analysis, hydrology, hydraulics, improvement proposals, and macro cost estimation. Results indicate that challenges are driven by swampy land conditions and inadequate channel and hydraulic structure capacity. Micro-watershed delineation using DEMNAS identified four ZPAs totalling 479–4,061 ha. Design rainfall was derived from CHIRPS satellite data using a log-normal distribution. Hydrologically, peak discharges range from 3.87–22.58 m³/s for the 2-year return period and 4.46–26.31 m³/s for the 5-year return period. Hydraulically, the proposed dimensions for rivers, outlet drains, carrier drains, and field-edge drains are 4×3×2 m to 9×7×3 m (T=2 years) and 4×3×2 m to 10×8×3 m (T=5 years), while collection and main drains are proposed at 3×2×2 m for both return periods. The total estimated investment for the 5-year design scenario is IDR 27,999,263,000.

This study aims to examine the effectiveness of attractants on the activity of the pollinating beetle Elaeidobius kamerunicus and its impact on the efficiency of pollination and palm oil (Elaeis guineensis) production at PT Menthobi Makmur Lestari, Lamandau Regency, Central Kalimantan. The study was conducted from May to July 2025 using a factorial randomized block design with two factors: topography (flat 0–8% and hilly 15–25%) and attractant doses (0, 1, 2, and 3 ml/ha) with three replications.The parameters observed included the frequency of E. kamerunicus visits to female flowers and the percentage of fruit set. The results showed that the topography factor, attractant dose, and their interaction significantly affected the number of E. kamerunicus visits and fruit set (p < 0.01). The combination of flat land with high attractant doses resulted in the highest visits (69.04 beetles/spike) and maximum fruit set (75.11%), while the hilly land without attractants showed the lowest results (34.60 beetles/spike; 61.22%). The application of attractants increased fruit set by more than 20% compared to the control, leading to an increase in bunch weight (BJR) of approximately 5.67 kg/bunch, additional production of about 1,151 kg FFB/ha per 1.5 months, and a potential income of Rp 3,683,200/ha, far exceeding the application cost of Rp 211,638/ha. These results indicate that the use of attractants is an effective and efficient agronomic strategy to improve palm oil productivity. Thus, attractants have proven to significantly enhance pollination efficiency and palm oil production, providing substantial economic benefits to farmers and supporting the sustainability of palm oil plantations. This approach offers an applicable and sustainable solution for agricultural practices, which can be applied to various locations with similar topographical conditions.  

The rising demand for healthy food is driven by increasing along with public awareness of the importance of a balanced and nutritious diet. One innovation in healthy food products is the development of corn flour-based muffins as an alternative to wheat flour products. Corn flour is a good source contains fiber, B-complex vitamins, and antioxidants such as lutein and zeaxanthin, which are beneficial for health, particularly digestive health and vision. This research aims to formulate healthy corn flour-based muffins with a balanced texture, taste, and nutritional content. The method used includes partially or completely replacing wheat flour with corn flour, as well as adding natural ingredients such as palm sugar as a natural sweetener and vegetable oil as a source of healthy fats. Organoleptic tests were conducted on panelists to assess product acceptability based on appearance, taste, aroma, texture, and color. The results showed that muffins with a composition of 36.5% corn flour and 36.5% wheat flour scored highest in taste and texture, and met the criteria for a healthy food low in sugar and high in fiber. This research demonstrates that corn flour-based muffins are a potential healthy food alternative and can be further developed as part of a healthy lifestyle.

Oil palm plantations play a vital role in Indonesia’s economy; however, the dominance of monoculture practices has led to environmental and social issues such as land degradation and unstable farmer incomes during the replanting period until the first harvest (TM1). To address these challenges, the oil palm–pineapple intercropping system has been developed as an alternative strategy to improve land-use efficiency, income diversification, and farming sustainability. This study aims to: (1) analyze the influence of land size, farmer age, farming experience, and rainfall on the productivity of the intercropping system; (2) develop sustainable landscape management strategies using SWOT and SWOT matrix analysis; and (3) provide data-driven policy recommendations to support sustainable oil palm plantations. The research methods include multiple linear regression analysis for socio-economic variables, correlation analysis for environmental factors (rainfall), and SWOT analysis to evaluate Strengths, Weaknesses, Opportunities, and Threats  of the intercropping system. The results indicate that land size has a significant positive effect on production, while farming experience shows a significant negative effect. Rainfall has a strong positive correlation with yields, and SWOT analysis positions the intercropping system in a progressive quadrant with promising Opportunities for development. In conclusion, the oil palm–pineapple intercropping system has the potential to enhance productivity, stabilize farmer incomes, and support environmental sustainability. Therefore, diversification-based management strategies and supportive policies are essential to Strengthen the welfare of local communities.

This study examines two main issues related to palm oil trading transactions in Kuala Keritang Village, Indragiri Hilir Regency, Riau Province. The first issue concerns the analysis of pricing mechanisms in palm oil trading, while the second focuses on the review of Islamic business ethics in such transactions. The objective of this research is to understand in detail how the price determination system operates in the local palm oil market and to assess the extent to which these trading practices align with the principles of Islamic business ethics. To address these issues, a qualitative descriptive method was employed. This approach was chosen because it allows for a comprehensive description of facts, data, and trading mechanisms while providing space for critical analysis in relation to Islamic values. Data were obtained through observation, interviews, and documentation, which were then described, analyzed, and discussed in order to answer the research questions thoroughly. The findings indicate that, in general, palm oil trading practices in Kuala Keritang Village are similar to other common trading systems, but they differ in terms of price-setting mechanisms. In practice, the price of palm oil is largely determined by buyers based on market conditions, which often creates injustice for farmers as sellers. From the perspective of Islamic business ethics, this practice does not fully comply with the principles of fairness, honesty, and mutual benefit, which are essential foundations of Islamic economic transactions. The study concludes that violations of Islamic business ethics principles, particularly regarding fairness in pricing, still occur in palm oil trading within the village. Therefore, improvements are needed in the transaction system so that palm oil trading in Kuala Keritang can be carried out in accordance with sharia principles, ensuring justice and mutual benefit for both sellers and buyers.

The use of palm oil waste as boiler fuel is one of the innovative solutions in supporting the use of renewable energy while reducing the environmental impact of palm oil industry waste. Waste such as palm shells, mesocarp fibers, and empty oil palm bunches have high energy potential through direct combustion and other thermal technologies. This study aims to evaluate the potential use of palm oil waste as boiler fuel based on its calorific value, combustion efficiency, and environmental impact. The methods used include analysis of the physical and chemical characteristics of waste, boiler performance tests, and exhaust gas emission evaluation. The results show that palm oil waste has a high calorific value (15–20 MJ/kg), which makes it an efficient alternative fuel. In addition, the use of this waste is able to reduce dependence on fossil fuels while minimizing carbon emissions, thereby supporting the greenhouse gas emission reduction target. From an operational perspective, the use of palm oil waste in industrial boilers can increase combustion efficiency by up to 75–85%, depending on fuel conditions and boiler design. This makes palm oil waste not only economically valuable, but also strategic in supporting the transition to clean energy. Another advantage is that waste management becomes more targeted, because solid waste that is usually only an environmental burden can be reused as an energy source. However, some of the challenges that need to be considered include relatively high ash levels, the potential for corrosion in boiler equipment, and the need for emission control technology to comply with environmental standards. With the right mitigation strategy, palm oil waste can be processed into sustainable and environmentally friendly energy.

The purpose of this study is to analyze the influence of the work environment, work pressure, and social support on the performance of employees at the palm oil processing factory of PT. Tani Prima Makmur. This research was conducted at the office of the palm oil processing factory located in Lerehoma, Anggaberi District, Konawe Regency. A questionnaire was used as the primary tool for data collection, with a Likert scale employed to measure the responses to various statements related to the work environment, work pressure, social support, and employee performance. Multiple linear regression analysis was applied to examine the relationships between the independent variables (work environment, work pressure, and social support) and the dependent variable (employee performance). The results of the t-test revealed that the significance value of the work pressure variable (X2) is 0.000, which is smaller than the 5% threshold (0.000 < 0.05), indicating that work pressure significantly affects employee performance. Similarly, the significance value for the social support variable (X3) is 0.000, which is also smaller than 0.05, suggesting that social support has a significant impact on employee performance. In contrast, the significance value for the work environment variable (X1) is 0.615, which is greater than 0.05 (0.615 > 0.05), indicating that the work environment does not significantly affect employee performance in this case. These findings suggest that while work pressure and social support are crucial factors influencing employee performance, the work environment may not play as significant a role in improving performance at PT. Tani Prima Makmur. The study highlights the importance of providing adequate support and managing work pressure to enhance employee productivity in the palm oil processing industry. Further research may explore other potential factors that could contribute to improving employee performance in similar contexts.

Worm infestation due to Soil-Transmitted Helminths (STH) infection remains a public health problem, especially among elementary school children who frequently interact with contaminated soil. This condition is a major concern because it can cause long-term health problems, particularly in terms of physical growth and development of children. This study aims to identify the presence of STH worm eggs and larvae in soil and fecal samples of children in Bekoso Village, Pasir Belengkong District, Paser Regency, East Kalimantan. This study used a descriptive approach with a cross-sectional design. The samples used consisted of 23 soil points taken from oil palm plantations with sandy and loose soil criteria, as well as 16 fecal samples from elementary school children. Fecal examination was carried out using the Kato-Katz method to detect worm eggs, while the soil was examined using the Baermann technique to detect worm larvae. The results showed that 25% of children's fecal samples were infected with worm eggs, with 12.5% containing hookworm eggs, 12.5% Taenia sp. eggs, and 6.25% Ascaris lumbricoides eggs. In soil samples, 60.87% tested positive for Strongyloides stercoralis larvae and 26.09% tested positive for Ascaris lumbricoides eggs. These findings indicate a high risk of STH infection in children in the area. Environmental factors such as soil moisture, soil texture suitable for worm breeding, and poor personal hygiene practices are suspected to be the main causes of the spread of infection. This study emphasizes the importance of education on clean and healthy living behaviors (PHBS) and improving environmental sanitation to reduce cases of worm infection, especially in endemic areas such as Bekoso Village. More comprehensive prevention efforts are urgently needed to address this problem and improve public health, especially among elementary school children.

The potential war between India and Pakistan poses significant risks to the Indonesian economy, as it is expected to exacerbate uncertainty in the global financial market. Such geopolitical tensions often trigger a ‘flight to safety,’ where capital flows shift to countries considered stable, leading to reduced foreign direct investment (FDI) in emerging markets like Indonesia. This scenario is likely to place additional pressure on Indonesia’s exchange rate, further destabilizing its financial position. One of the key impacts of the looming India-Pakistan war on Indonesia is its effect on monetary and fiscal management. The Indonesian government is already facing significant challenges, including managing a large amount of maturing debt and grappling with a growing budget deficit. The war would complicate these efforts, making it more difficult for the government to stabilize the economy and implement effective policies. Indonesia’s export sector will also be affected, as India and Pakistan are two of the country’s main trading partners, especially for key commodities like crude palm oil (CPO) and coal. India is Indonesia’s 4th largest export destination, accounting for approximately 9% of total exports, while Pakistan represents around 1.9%. Any disruption in trade with these countries, due to the war or political instability, could significantly hurt Indonesia’s export revenues and negatively affect industries reliant on these markets. Moreover, Indonesia is already facing challenges from the United States, which has imposed reciprocal tariffs worth 32% on Indonesian products. This trade tension, combined with the geopolitical instability from the India-Pakistan conflict, will add further strain to Indonesia’s trade balance. The combination of these factors could lead to slower economic growth, reduced investor confidence, and potentially higher inflation, as the country faces multiple external and internal economic pressures.

The reciprocal tariff policy has a significant impact on a number of countries, including Indonesia. In this scheme, Indonesian non-oil and gas products are subject to a tariff of 32% when entering the US market. Such a high tariff places Indonesian exporters in a less competitive position compared to other countries that have more favorable trade arrangements with the United States. This condition becomes more complex when viewed in the broader context of the US-EU trade war, which creates uncertainty and turbulence in the global economy. Indonesian exports are affected both directly and indirectly. Indirect impacts can be seen from disruptions to the global supply chain, the slowdown in the world economy, and decreased global demand. As global production networks become increasingly interconnected, any disruption in major economies will ultimately suppress demand for Indonesian export commodities. This means that even if Indonesian products are not directly targeted, the ripple effects of global trade tensions will still hinder Indonesia’s export performance. For instance, reduced consumption in Europe and the US due to rising product prices and inflation will diminish market opportunities for Indonesian goods.On the other hand, direct impacts arise because several Indonesian products have been explicitly subjected to tariffs by the US government. These include textiles and textile products (TPT), electronics and their components, footwear, furniture, and palm oil (crude palm oil/CPO). Such tariffs significantly reduce Indonesia’s competitiveness in the US market, potentially leading to decreased export volumes, lower revenues for domestic industries, and job losses in export-oriented sectors. Furthermore, the policy also makes European products much more expensive in the US market, which worsens the global supply chain, increases logistics costs, triggers inflation, and escalates uncertainty in international trade.

The palm oil industry is a vital component of Indonesia's economy, significantly contributing to foreign exchange earnings and employment opportunities, particularly in rural and plantation-based regions where economic alternatives are limited. However, the sector is increasingly challenged by global sustainability concerns, particularly the European Union Deforestation Regulation (EUDR), which poses a threat to Indonesia’s palm oil exports due to its strict environmental standards and traceability requirements. This study adopts a descriptive qualitative approach using a literature review to explore the role of innovation and legal protection in strengthening the sustainability and global competitiveness of Indonesia’s palm oil industry. Specifically, it investigates how the development of superior plant varieties and the application of Plant Variety Protection (PVP) under the Intellectual Property Rights (IPR) framework contribute to long-term industry resilience. The findings indicate that superior varieties such as DxP Topaz, DxP PTPN V, and Lonsum DxP have been instrumental in boosting productivity, reducing the need for land expansion, enhancing oil yield per hectare, and improving overall resource efficiency. Moreover, legal protection through PVP not only secures exclusive rights for breeders but also incentivizes further agricultural innovation and prevents the unauthorized use and duplication of valuable genetic resources. In light of international regulatory pressures, strengthening the national PVP system, promoting the registration of local superior varieties, and integrating legal instruments with research and development are essential. These efforts can safeguard Indonesia’s genetic sovereignty and support sustainable practices in compliance with international environmental standards. Ultimately, aligning agricultural innovation with a robust legal framework is key to maintaining the industry’s market access, environmental credibility, and long-term sustainability.

This research aims to create batik tulis motifs with inspiration from three main plantation commodities in North Labuhanbatu Regency, North Sumatra, namely palm oil, rubber, and cocoa. These three plants are not only economically important, but also have philosophical values that can be raised as visual and cultural wealth in the form of batik motifs. The method used in the creation of the work consists of three stages, namely exploration, design, and realization. Exploration is done through literature study, direct observation, and visual documentation of the morphology of the three plants. The design stage involved the stilation and deformation of the plant forms into batik motif designs. Furthermore, the realization stage was carried out using the written batik technique using canting on mori cloth. The research resulted in 12 written batik works that combine elements of aesthetics, philosophy of life, and the locality value of the Labuhanbatu Utara community. This research is expected to enrich the repertoire of contemporary batik design while supporting cultural preservation and the development of local wisdom-based creative industries.

The People’s Palm Oil Replanting Program (PSR) is a national policy aimed at improving the productivity of smallholder plantations through the replanting of aging and unproductive oil palm trees. This study reviews the implementation of PSR in Indonesia by analyzing ten scholarly articles through a literature study approach. The findings indicate that program effectiveness is significantly influenced by technical support such as training, mentoring, the application of Good Agricultural Practices (GAP), and strategic partnerships for harvest absorption. However, implementation faces several challenges, including limited human resources, damaged equipment, inadequate funding, prolonged replanting periods, weak coordination among stakeholders, and lack of policy dissemination. Local institutions such as cooperatives (KUD) and farmer groups (Gapoktan) play crucial roles in ensuring program sustainability and inclusiveness by acting as managers and conflict mediators. Although farmers are generally ready and actively participate, regulatory constraints—particularly the requirement of financial guarantors—remain a barrier. The study recommends strengthening local institutional capacity, enhancing stakeholder synergy, and simplifying financial schemes as strategic steps to improve the long-term effectiveness of the PSR program.

This study analyzes the Highest Retail Price (HET) policy for palm cooking oil. of palm cooking oil implemented by the Indonesian government through MOT Regulation of the Minister of Trade (Permendag) Number 1 of 2022 as revoked based on Permendag Number 6 of 2022 concerning the Determination of HET of Palm Cooking Oil, and its implications for business competition based on Law No. 5 of 1999 on the Prohibition of Monopolistic Practices. based on Law No.5/1999 on the Prohibition of Monopolistic Practices and Unfair Business Competition. and Unfair Business Competition. The price ceiling policy aims to protect consumers from uncontrolled price increases, especially for low-income households. low-income communities. However, its implementation has caused negative impacts such as scarcity and losses for producers, which was found to have violated Article 19 letter c of Law No.5 Year 1999 by KPPU. violated Article 19 letter c of Law No. 5 Year 1999 by KPPU. Producers filed an objection, and the Central Jakarta Commercial Court ruled that the scarcity of cooking oil was the impact of the single price ceiling policy, and therefore the KPPU's decision was canceled. This research uses normative legal methods by analyzing legal principles in court decisions and related regulations. The results show that the price ceiling policy needs to be re-evaluated to balance the interests of consumers and producers. balance the interests of consumers and producers. Implications of the court decision court decision is the need for stricter supervision and participation of stakeholders in the formulation of future price ceiling policies. stakeholders in the formulation of the price ceiling policy in the future. This research contributes theoretically in the field of competition law and practically as a reference for policy makers. as a reference for policy makers.

Oil palm development in Indonesia faces various agronomic constraints, especially related to soil chemical properties that are less supportive of productivity. This study aims to identify the status of soil chemical properties on oil palm land in Saliki Village, Muara Badak District, East Kalimantan, to support more appropriate land management. The research was conducted from September to November 2024 using a purposive random sampling method on 13 hectares of land, with six sampling center points and four subsamples per point. Laboratory analysis was conducted on soil pH, C-organic content, total N, available P, potential K, cation exchange capacity (CEC), and base saturation. The results showed that the soil in the 6-year-old oil palm land had a pH of 3.63-3.93 and base saturation of 13.69-13.81%, while at the age of 15 years, the pH decreased to 3.12-3.38 and base saturation was only 4.62-6.95%. Meanwhile, available P and potential K levels tended to increase with increasing plant age. Based on these findings, fertilization is recommended according to the IOPRI standard for mineral soils as follows: for 6 years old, urea 2.75 kg/year, TSP 1.75 kg/year, and KCl 2.75 kg/year, while for 11 and 15 years old, urea 3.25 kg/year, TSP 2 kg/year, and KCl 3 kg/year. This study emphasizes the importance of periodic monitoring of soil chemical properties as a basis for sustainable management of oil palm plantations.

Empty oil palm bunches processed by palm oil mills in Indonesia are still abundant, reaching 56.35 million tons per year. Empty oil palm bunches contain around 40% cellulose, so they can still be used for various derivative products, one of which is composite products. The use of empty oil palm bunches as raw materials for Bioplastic production is a series of ongoing research, one of which is starch-cellulose blend, but until now it has not been successfully commercialized. The design of the starch cellulose blend bioplastic industry using palm oil as raw material produces two factories, namely a cellulose factory and a composite bioplastic factory. Both factories are designed in separate buildings. The separation of cellulose from TKKS uses a chemical method with soda, after mechanical treatment of size reduction. The industry is designed in 3 scales of production capacity, namely a large scale of 190,000 tons / year, medium 115.00 tons / year, and small 40,000 tons.year. The financial analysis of the three scales of production capacity as a whole is declared feasible. Profit margin is calculated at a minimum of 17.6%. The average payback period is between 3-5 years with an IRR of 24-49%. Analysis of the economic value produces an EScale index of 0.64 which indicates that the economic scale has been achieved. The economic scale of the starch cellulose blend bioplastic industry from TKKS is at a production capacity of 40,000 tons per year with a minimum supply of TKKS raw materials of 20,203 tons/year. At the smallest economic scale, the BEP is actually only 6627.4 tons/year, where this condition can be achieved because the industry has relatively small fixed costs.

PT. Gemilang Sejahtera Abadi (GSA) is a company engaged in the oil palm plantation business, which is spread across the East Kutai Regency, precisely in Long Mesangat District. It is still difficult for office admins to monitor plantation results and production results by relying on paper records, via telephone and SMS, making it difficult to understand palm oil production data. The computerized system used when the research was conducted still used Microsoft Excel and Microsoft Word. The purpose of this study was to create a web-based Monitoring Information System Design application for the PT. Gemilang Sejahtera Abadi office admin. The method used is the Waterfall method which consists of 5 stages, namely: communication, planning, modeling, construction and system submission. The system created is web-based using the PHP programming language and MySQL database.The results of the study concluded that the design of the plantation production monitoring system for the office admin can be implemented and is expected to help the office admin in managing harvest data and can reduce errors in the data input process.

The Ripple Mill machine is one of the vital components in a Palm Oil Mill (PKS) that functions to separate the palm kernel from its shell. This process is very important because the quality and quantity of the palm kernel produced will directly affect the economic value and production efficiency in the palm oil industry. At PTPN IV Regional II Plantation Unit and Adolina PKS, various technical problems were found that caused a decrease in machine performance, including rotor bars and square bars that experienced wear due to age and improper machine settings. In addition, other damage that often occurs is a broken van belt due to age and excessive tension, feeder motor dysfunction caused by excessive load, and motor overheating that occurs due to age and high workload. To overcome these problems, this study uses the Failure Mode and Effect Analysis (FMEA) method. This method aims to identify various potential failures, assess the severity, frequency of occurrence, and detection capability, so that the Risk Priority Number (RPN) value can be calculated as a basis for repair priorities. The results showed that worn rotor bars and worn square bars had the highest RPN values, each at 280, equivalent to 40.23% of the total identified risks. This indicates that these two components are critical points requiring immediate repair and maintenance attention. Applying FMEA in this context provides tangible benefits, including helping the company formulate a more targeted maintenance strategy, reducing the risk of recurring damage, and minimizing downtime that impacts production. With more systematic maintenance, operational efficiency can be improved while extending the lifespan of the Ripple Mill machine.

This study was conducted to analyze the effect of suction power effectiveness on cyclones in Light Tenera Dust Separator (LTDS) 1 and 2 units on the level of palm kernel losses at PTPN IV Regional II Plantation Unit and Adolina Palm Oil Mill (POM). Palm kernel loss is a significant factor that can reduce production efficiency, as palm kernel has high economic value and is the main product in the palm oil industry. Kernel losses not only reduce production efficiency but also create significant economic disadvantages for the palm oil mill. The research method used was a gravimetric method with a field experiment approach. The research process included sampling from LTDS waste, separating kernels from shells, and measuring suction speed using an anemometer to determine cyclone performance. The gravimetric method was applied to quantify the proportion of kernel mixed with shell waste, providing measurable data on suction efficiency. The results showed that low suction power effectiveness was directly proportional to the increasing number of kernels that were thrown away with the shells. In other words, poor suction performance directly correlates with higher kernel losses. The main contributing factors include leaks in the cyclone, suboptimal blower settings, and inadequate operator skills. Operational skills and equipment maintenance were identified as crucial determinants of system performance. Based on these findings, improvements to the suction system are recommended through routine maintenance, leak checks, and blower setting calibration. Furthermore, operator training is required to precisely adjust suction power. By maintaining suction effectiveness and optimizing blower settings, kernel losses can be reduced below the standard threshold of 2.0%. Thus, mills can improve operational efficiency while minimizing economic losses due to palm kernel loss.  

Work fatigue is a physical condition that weakens workers, causing less than optimal work capacity and endurance. Lactic acid is produced from anaerobic metabolism or carbohydrate metabolism without oxygen. This happens because there is not enough oxygen to support muscle energy production. The body that cannot produce the amount of lactic acid that is comparable to the rate of its synthesis, then the muscle pH will decrease, this is what inhibits glycolysis enzymes resulting in physical fatigue. Physical fatigue is the effect of increased levels of lactic acid in the body, especially muscles. One of the jobs at PT. X in Kampar Regency that can cause work fatigue is a palm oil harvester. This study is an observational study type with a cross-sectional study design. Data were obtained using interviews using a BMI questionnaire. Data collection was also carried out to obtain BMI measurement data, pulse measurements, blood pressure measurements, and lactic acid measurements with Accutrend Plus Roche Brand on 138 harvesters at PT. X Kampar Regency. In this study, the independent variable is the level of lactic acid and the dependent variable is work fatigue. The results of the study showed that the harvesters who experienced moderate work fatigue were 13 people (11.4%). The harvesters who experienced high work fatigue were 54 people (47.4%). The harvesters who experienced very high work fatigue were 47 people (41.2%). The high proportion of workers who experienced high and very high work fatigue (88.6%) reflects the significant physical workload that must be faced by oil palm harvesters at PT. X. Harvesters with lactic acid levels <2 mmol/l (not increasing) were 13 people (11.4%) and harvesters with lactic acid levels> 2 mmol/l (increasing/hyperlactatemia) were 101 people (88.6%). From the results obtained, a significant increase in lactic acid levels in 88.6% of respondents indicated that most workers experienced higher muscle fatigue conditions during work with increased lactic acid levels.