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All Journal Jurnal Agro Industri Perkebunan Jurnal Biologi Tropis Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Aptisi Transactions on Management Tropical Plantation Journal Agroista: Jurnal Agroteknologi Riwayat: Educational Journal of History and Humanities Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Flora: Jurnal Kajian Ilmu Pertanian dan Perkebunan Senadika
Sri Gunawan
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Social Sciences Other

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Perbandingan Persentase Brondol di Berbagai Macam Areal di Perkebunan Kelapa Sawit Ramadhan, M.Fauzan; Gunawan, Sri; Tarmadja, Samsuri
AGROISTA : Jurnal Agroteknologi Vol. 8 No. 1 (2024): MEI
Publisher : Program Studi Agroteknologi INSTIPER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55180/agi.v8i1.925

Abstract

Palm oil productivity is influenced by many factors. One factor is crop rotation. Harvest rotation greatly influences productivity in oil palm plantations. Obstructed harvest rotation causes the number of fruit bunches to increase in an area compared to the weight of fresh fruit bunches (FFB) harvested. The percentage of brondol in oil palm plantations is very important because it will affect the average bushel weight (BJR) and payments to employees for oil palm plantation companies. The decrease in BJR due to the high percentage of brondol will also have an impact on the morale of workers, especially harvesters on oil palm plantations because the harvest base will be higher to get a harvest premium. This research aims to determine the comparison of the percentage of brondol in various areas, namely hilly, lowland and plain areas and to find out the causes of the high percentage of brondol in the treatment blocks. This research uses an agronomic trait survey method by observing secondary data on productivity and percentage of brondol in the last six years, then analyzed using the t test at a level of 5%.  This research was carried out at PT. Cahaya Nusa Gemilang (CNG) Kenanga Estate garden, Marau District, Ketapang Regency, West Kalimantan. The results of the analysis show that plain areas have the best productivity and percentage of brondol compared to lowland and hilly areas.
Upaya Menekan Kehilangan Hasil Produksi Kelapa Sawit pada Daerah Bukit Bergunung dan Daerah Datar Bergelombang Riski, Dewa; Gunawan, Sri; Ardiani, Fani
Jurnal Agro Industri Perkebunan Vol. 11 No. 2 (2023)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v11i2.2919

Abstract

Oil palm is a plant that produces vegetable oil and is cultivated in various terrain, including undulating flats and mountainous hills. The aim of this study was to identify the factors causing losses in these areas and to investigate ways to reduce the production and income effects of these losses. The research was conducted at the Palm Oil Plantation of PT. Supra Matra Abadi in North Sumatra Province, using a quantitative research method. Samples were taken from blocks A, B (planted in 1988) and C, D (planted in 2016). The parameters observed included the number of losses in the circle, path, and collection point of FFB, areas, plant age, and the suitability and completeness of equipment. Treatments included spraying on circles, paths, and collection points of FFB, as well as the placement of employees based on their experience level and the provision of tools. Data analysis was conducted using the t-test to compare results before and after treatment. The study found that the highest losses occurred in mountainous hill areas, with an average of 2.394 kg.ha-1, while the lowest losses occurred in undulating flat areas, with an average of 1.420 kg.ha-1. The results also showed that losses decreased by 28.17% or 0.678 kg.ha-1 in mountainous hill areas and by 36.93% or 0.522 kg.ha-1 in undulating flat areas after treatment. The economic value of losses was IDR 2,271.30 per ha in mountainous hill areas and IDR 1,748.70 per ha in undulating flat areas. Therefore, this study concludes that the spray treatment of circles, paths, collection point of FFB, placement of employees based on their experience level, and provision of equipment significantly reduced losses in undulating flat areas and mountainous hills.
Positive Analysis of Consumer Engagement Towards Brand Trust And Buying Interest On BULOG Rice In Surabaya City Yusuf, Muhammad; Gunawan, Sri
Riwayat: Educational Journal of History and Humanities Vol 7, No 4 (2024): October, Social Issue and Education
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jr.v7i4.40482

Abstract

Rice is a staple food in Indonesia. BULOG Indonesia is a logistics company that produces rice. This study aims to analyze the effect of positive consumer engagement on brand trust, buying interest, and the impact of brand trust on buying interest in BULOG rice in Surabaya. This study uses a quantitative method, processing the data using SmartPLS software. The results of this study are as follows: The explanation is proven by the R-Square value of 0.550 or 55%, meaning that changes in the positive consumer engagement variable can affect the brand trust variable by up to 55%. Therefore, it can be concluded that positive consumer engagement has a positive and significant effect on brand trust in BULOG rice in Surabaya City, with a correlation of 55%. The R-Square value of 0.733 or 73.3% means that changes in the positive consumer engagement variable can affect the buying interest variable by up to 73.3%. Therefore, it can be concluded that positive consumer engagement has a positive and significant effect on buying interest in BULOG rice in Surabaya City, with a correlation of 73.3%. R-Square value of 0.733 or 73.3% means that changes in the brand trust variable can affect the buying interest variable by up to 73.3%. Therefore, it can be concluded that brand trust has a positive and significant effect on buying interest in BULOG rice in Surabaya City, with a correlation of 73.3%
Not Just Rain: Quantitative Evidence of the Impact of Historical Rainfall Period 2016-2021 on Palm Oil Production in Riau Indonesia Gunawan, Sri; Pratama, Oktarianto Tidar; Nurcahyono, Nurcahyono
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.55

Abstract

Environmental factors greatly influence oil palm productivity, especially rainfall, which impacts the plant's physiological state. This study aims to analyze the relationship between rainfall and oil palm production. This study used a two-stage survey method. Time series data from 2016-2021 were used to evaluate the relationship between monthly rainfall and three production parameters (productivity, number of fresh fruit bunches (FFB), and average bunch weight (ABW). Correlation and regression analyses were conducted to identify significant contributions of rainfall to yield variables by considering the time lag. The results showed that rainfall that occurred 24-36 months previously had a significant effect on productivity and the number of FFB with R2 values of 53.93% and 54.83%, and rainfall 37-38 months previously contributed to BJR with an R2 value of 40.33%. Rainfall has historically played an important role in determining oil palm yields. Plantation management based on long-term climatological data can be a new approach to optimizing sustainable oil palm production.
Alternative Household Fuel: Fruitless Palm Based on Gasification Biomass with Gasoline and Liquefied Petroleum Gas Saloko, Subakho Aryo; Nurcahyono, Nurcahyono; Kurniawan, Indra; Hartono, Hartono; Gunawan, Sri
Tropical Plantation Journal Vol 4, No 2 (2025): TROPICAL PLANTATION JOURNAL
Publisher : Akademi Komunitas Perkebunan Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56125/tpj.v4i2.57

Abstract

Fuel sources derived from oil palm plants are abundant but have not been optimally utilized by the community. This study aims to show the performance efficiency of cheap fuel fruitless (Brondolan) using people's stoves as fuel substitutes for kerosene, coal, and Liquid Petroleum Gas (LPG). This study uses a quantitative observation method. The types of fuel and stove materials used include (1) conventional kerosene-fired stoves, (2) conventional LPG-fired stoves, (3) gasified biomass stoves fueled with palm fruit, (a) large stove size (Prime Brand), and (b) small stove size (People's Stove Brand). The research procedure is measured by heating 5 liters of water from room temperature to boiling (1000C). The results show that fruitless is more efficient than gasoline, coal, and LPG is more efficient. Based on trials, heat 5 liters of water to a boil at Rp. 200, Gasoline Rp. 1,650, and LPG Rp. 381. The government's role is to provide socialization and policies in applying alternative materials with lozenges to reduce the use of gasoline and LPG. Unrefined fuel can be an alternative material for household scale stoves.
Autonomous Camera Tracking System Using Image Processing for Dynamic Educational Content Creation Solakhudin, Muhammad Rafi; Sinka, Valina; Gunawan, Sri; Mustajib, Muhammad
Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering) Vol 12 No 1 (2025): Jurnal Ecotipe, April 2025
Publisher : Jurusan Teknik Elektro, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jurnalecotipe.v12i1.4545

Abstract

In the context of the Online Learning activity, where video content plays a crucial role in educational materials, the demand for effective video production systems has become essential. Traditionally, at least two people are needed to operate cameras, which poses a challenge due to limited human resources. This study addresses this issue by developing a Camera Position Tracking System using image processing, specifically utilizing the MediaPipe framework for real-time tracking of presenters. The system's mechanics enable a DSLR camera to automatically adjust its position based on the presenter’s movement, detected within a range of 1.5 to 8 meters. The light intensity required for optimal operation is between 125 and 190 lux. The system's success lies in converting detected position data into motor stepper pulses that move the camera, ensuring efficient, cost-effective video production with minimal human intervention.
Analisis Penerapan Hatch and Carry Center sebagai Upaya Peningkatan Produktivitas dan Efesiensi Manajemen Buah Kelapa Sawit Yusup Paisol; Gunawan, Sri; Astuti, Yohana Th. Maria; Afiantoro, Febri; Toni Athory Sinaga
Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan Vol. 2 No. 3 (2025): Oktober: Flora : Jurnal Kajian Ilmu Pertanian dan Perkebunan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/flora.v2i3.475

Abstract

This study aims to analyze the effectiveness of the Hatch and Carry Center (H&C) in increasing the population of Elaeidobius kamerunicus pollinating weevils, fruit set levels, and Fresh Fruit Bunch (FFB) productivity in oil palm plantations at Division 6 Estate SGT 02, PT Kayung Agro Lestari, West Kalimantan. The research was conducted over six months, from July to December 2024, using a quasi-experimental comparative design. The period without H&C (July–December 2023) served as the control, while the period with H&C (July–December 2024) was treated as the intervention, allowing for a clearer analysis of differences before and after program implementation. Primary data were collected through monthly field observations on the number of male and female flowers, weevil populations, fruit set levels, and parthenocarpic fruits, providing consistent information on plant reproductive dynamics. In addition, in-depth interviews and Focus Group Discussions (FGDs) with stakeholders were conducted to identify supporting and inhibiting factors during implementation. Secondary data on FFB production were obtained from company harvest records in both periods to compare productivity trends. Quantitative data analysis employed the t-test to examine significant differences between the control and treatment periods, while qualitative data were thematically analyzed to explore the dynamics of program execution. The combination of both approaches is expected to provide a comprehensive understanding of the effectiveness of H&C as an innovation in oil palm pollination management.
Improving the pH of Palm Oil Mill Effluent (POME) with Aerator Treatment and Water Dilution Jaya, Galang Indra; Gunawan, Sri
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7498

Abstract

Palm Oil Mill Effluent/POME is a by-product produced from the processing of fresh fruit bunches/FFB into crude palm oil/CPO. Aeration of POME is one of the processing methods that aims to reduce the levels of organic matter and pollutants. This study aims to determine the dynamics of POME pH with aeration treatment and dilution variations in order to speed up the waste treatment time.The method used in this research is to make the treatment of pure POME, POME & water in a ratio of 1:1 & 1:2. The process carried out in the study was to place the solution into a 1 liter bottle and given an air flow using an aerator with a discharge of 0.66 l/min. POME samples were taken every 24 hours for a span of 7 days. The pH was measured using the electrometric method. On day 2, it was found that the pH of the 1:1 treatment POME had reached pH 6, while the 1:2 treatment on day 3 and the pure POME only reached pH 6 on day 5. Aeration is an effective method to neutralize the acidity of POME. The increase in POME pH was fastest in the 1:2, 1:1 and finally pure POME dilutions. All treatments met the pH quality standard on day 5. Aeration can help improve the quality of POME so that it is more environmentally friendly.
The Impact of the Covid-19 Pandemic on Retail Consumer Behavior Sayyida, Sayyida; Hartini, Sri; Gunawan, Sri; Husin, Syarief Nur
APTISI Transactions on Management (ATM) Vol 5 No 1 (2021): ATM (APTISI Transactions on Management: January)
Publisher : Pandawan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33050/atm.v5i1.1497

Abstract

The COVID-19 pandemic that occurred throughout 2020 has an impact on economic sector. Consumers tend to use online channels to reduce face-to-face contact with marketers or other consumers. On the other hand, the consumer's need to see, touch and feel a product directly is only available in physical stores. This study aims to analyze the impact of the COVID-19 pandemic on retail consumer behavior. This study uses quantitative methods with secondary data sources obtained from several countries including the United States, England, Germany, France, Canada and Latin America. The results show that the shopping trends during the COVID-19 pandemic are webrooming and pure online shopping. Retail sales data in these countries shows that retail sales in physical stores exceed 70% of total retail sales and retail e-commerce sales are less than 30% of total retail sales. This research is expected to be useful for marketers in improving retail marketing strategies during the COVID-19 pandemic
Collaborative Performance Metrics Model with Lateral Structure in Fresh Produce Supply Chains: A Review Novirani, Dwi; Susanto, Edi; Othman, Norfaridatul Akmaliah; Gunawan, Sri
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.978-996

Abstract

Performance measurement regarding collaborative supply chain of fresh produces such as fruit and vegetables that combines vertical and horizontal collaboration structures is rarely found in the literature. Performance metrics in this lateral collaborative structure are useful for tracking and measuring the achievement of more comprehensive business goals that are not found in only vertical or horizontal structures. This research aims to explore and propose the best model for collaborative performance system (CPS) in the fresh produce supply chain (FPSC) and success factors in CPS implementation, including CPS metrics and matching collaborative individual performance (CIP) and supply chain performance (SCP). Papers from the last seventeen years including journal papers, working papers and conferences were selected in three steps. From 175 articles found in the first step, 63 articles matched the topic. In the third step, 48 articles were selected as important topics of discussion focused on the field of fresh products, with three classifications of collaboration structures and identifying CIP and SCP metrics which were then analyzed. The results of this review provide good opportunity as reference material for further research, through a comprehensive analytical description complete with a conceptual model presented to complete the gaps in this field. Keywords: Collaborative Performance System, Lateral Model, Performance Metrics, Rural Farmers, Supply Chain.
Co-Authors Afiantoro, Febri Astuti, Yohana Th. Maria Budi Purwono Dian Ekowati Dwi Novirani Edi Susanto Fani Ardiani Fariha Wilisiani, Fariha Gancar C. Premananto Hartono Hartono Husin, Syarief Nur Indra Kurniawan Jamaliah Jamaliah Jaya, Galang Indra Jovi Sulistiawan, Jovi Khaira, Nurul Mahardika, Yefta Muhammad Yusuf Mustajib, Muhammad Nurcahyono Nurcahyono, Nurcahyono Nuri Herachwati Othman, Norfaridatul Akmaliah Pratama, Oktarianto Tidar Ramadania Ramadania Ramadhan, M.Fauzan Riski, Dewa Saloko, Subakho Aryo Samsuri Tarmadja, Samsuri Sayyida Sayyida Sinka, Valina Solakhudin, Muhammad Rafi Sony Kusumasondjaja Sri Hartini Sulistyawati, Chorry Toni Athory Sinaga Tri Siwi Agustina Wijayani, Suprih Wirianata, Herry Yusup Paisol