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All Journal Agrikultura JOURNAL ON SOCIAL ECONOMIC OF AGRICULTURE AND AGRIBUSINESS Jurnal Pamator : Jurnal Ilmiah Universitas Trunojoyo Madura EKOMBIS REVIEW: Jurnal Ilmiah Ekonomi dan Bisnis Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Jurnal Penelitian Pendidikan IPA (JPPIPA) EKONOMIS : Journal of Economics and Business Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Indonesian Journal of Agricultural Research JURNAL AGRICA Journal of Saintech Transfer Agro Bali: Agricultural Journal Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Randwick International of Social Science Journal International Journal Reglement & Society (IJRS) International Journal of Educational Review, Law And Social Sciences (IJERLAS) Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Sibatik Journal : Jurnal Ilmiah Bidang Sosial, Ekonomi, Budaya, Teknologi, Dan Pendidikan Proceedings Series on Physical & Formal Sciences East Asian Journal of Multidisciplinary Research (EAJMR) Formosa Journal of Multidisciplinary Research (FJMR) Utsaha: Journal of Entrepreneurship Jurnal Ilmiah MEA (Manajemen, Ekonomi, dan Akuntansi) Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis Majapahit Journal of Islamic Finance dan Management Baileo: Jurnal Sosial Humaniora Majapahit Journal of Islamic Finance dan Management West Science Agro AGRARIS: Journal of Agribusiness and Rural Development Research Journal of Environmental and Development Studies Indonesian Journal of Forestry Research Proceedings of The International Conference on Computer Science, Engineering, Social Sciences, and Multidisciplinary Studies
Wibowo, Rulianda P.
Program Studi Agribisnis, Fakultas Pertanian, Universitas Sumatera Utara
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Veterinary Other

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UNLEASHING THE POTENTIAL OF THE INDONESIAN TIMBER LEGALITY ASSURANCE SYSTEM FOR LEGALITY ASSURANCE, PERFORMANCE, AND GLOBAL COMPETITIVENESS Khaliqi, Muhammad; Wibowo, Rulianda Purnomo; Novianti, Tanti; Malau, Leo Rio Ependi; R. Rambe, Khoiru
Indonesian Journal of Forestry Research Vol. 12 No. 2 (2025): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2025.12.2.287-297

Abstract

Indonesia has responded to the timber certification obligation imposed by importing countries, particularly the European Union, by implementing the Indonesian Timber Legality Assurance System (Sistem Verifikasi Legalitas Kayu-SVLK). This study aimed to evaluate the impact of the SVLK policy on the state of the Indonesian forestry industry and the performance of Indonesian wood goods, mostly plywood, in the international market. Secondary data on Indonesian wood product exports, classified under HS Code 4412, were utilized in this investigation. The analysis revealed that comparative advantage (RCA) analysis was used to assess the competitiveness of Indonesian wood products, while panel data analysis was utilized to assess the impact of the SVLK policy on Indonesian wood export performance. The implementation of SVLK enhanced the value of Indonesian plywood exports; however, the increase was still relatively small compared to other major exporting countries. According to the estimation results, the use of SVLK had a positive impact on the Indonesian plywood trade in the international market. However, Indonesia's ability to increase its market share was still critical so that the Indonesian plywood industry could maximize the potential for expansion in demand for plywood.
Analysis of Technical and Allocative Efficiency Models for Shallot Farming to Increase Production in Karo Regency Hakim, Tharmizi; Supriana, Tavi; Wibowo, Rulianda P.; Hasanah, Yaya
Proceedings of The International Conference on Computer Science, Engineering, Social Science, and Multi-Disciplinary Studies Vol. 1 (2025)
Publisher : CV Raskha Media Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64803/cessmuds.v1.8

Abstract

The shallot commodity has a strategic role in national food security, but its production still experiences fluctuations, especially in Karo Regency. The primary challenge faced by farmers is the low level of productivity and efficiency in their production. This study aims to analyze the efficiency model of shallot farms in Karo Regency and identify the factors influencing it, including the complex interaction between external factors (climate change), farmers' adaptive responses, and existing socioeconomic structures. The methods employed are a combination of qualitative and quantitative approaches, including surveys and in-depth interviews. Data analysis will use the Stochastic Frontier Analysis (SFA), Data Envelopment Analysis (DEA), and Tobit regression models. The expected results can provide a comprehensive understanding of the sustainability of shallot farming and offer integrated policy recommendations for local governments, extension workers, and farmers.
THE INFLUENCE OF TRAINING NEEDS ASSESSMENT, TRAINING DESIGN, TRAINING DELIVERY STYLE, AND TRAINING EVALUATION ON EMPLOYEE PERFORMANCE AT PERUMDA TIRTANADI Dedy Widarta; Rulianda Purnomo Wibowo; Meilita Tryana Sembiring
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 5 No. 5 (2025): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/morfai.v5i5.4394

Abstract

This study aims to analyze the effect of training on employee performance at Perumda Tirtanadi, a regional-owned company engaged in public water services in North Sumatra. The research applies a quantitative associative approach to examine the influence of four key dimensions of training training needs assessment, training design, training delivery style, and training evaluation on employee performance. Data were collected through questionnaires distributed to employees across several divisions of Perumda Tirtanadi and analyzed using multiple linear regression with SPSS. The results show that training has a significant positive effect on employee performance, both partially and simultaneously. Each dimension of training contributes differently, with training design and training evaluation showing the strongest influence. These findings indicate that a systematic and well-evaluated training program can enhance employees’ competence, productivity, and service quality. The study emphasizes the importance of continuous human resource development and provides practical recommendations for improving the effectiveness of training programs within public sector organizations.
ISPO introduction program for independent smallholders: Initial steps towards mandatory ISPO 2025 Barus, Riantri; Chalil, Diana; Wibowo, Rulianda Purnomo
Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol. 9 No. 2 (2024): May 2024
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/abdimas.v9i2.12657

Abstract

The government, through Peraturan Presiden RI Nomor 44 Tahun 2020, mandates Indonesian Sustainable Palm Oil (ISPO) certification for smallholder farmers within five years of its enactment. However, by December 2022, only 32 farmer groups had achieved ISPO certification. The Gunung Ambat Farmers Group, which has already received funds from the PSR program, is one of the independent farmer groups with the potential to acquire ISPO accreditation. Yet, members' understanding of this certification remains low due to a lack of socialization or training from the government or other entities. This initiative aims to promote the regulation and provide training on the concepts and requirements for ISPO certification. Activities include administering questionnaires to assess knowledge, conducting training sessions, engaging in puzzle games, and practicing the documentation of farming activities. The results indicate significant improvements in farmers' understanding before and after the training. Initially, farmers had no knowledge of ISPO certification; however, post-training, over 70 percent of participants understood the certification, with an average of 35 percent comprehending its principles and criteria. Participants are also encouraged to document their farming progress, enhancing their skills in farming business documentation and administrative tasks.
ANALYSIS OF THE EXPORT COMPETITIVENESS OF INDONESIAN ARECA NUTS TO THE UNITED ARAB EMIRATES Fery Putra Alam Bara Munthe; Rulianda P Wibowo; Tavi Supriana
International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Vol. 5 No. 6 (2025): December
Publisher : CV. Radja Publika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijebas.v5i6.5025

Abstract

This study aims to analyze the export competitiveness of Indonesian areca nut to the United Arab Emirates (UAE). The objective of the research is to evaluate the comparative advantage of Indonesian areca nut exports compared to other exporting countries such as India, Myanmar, Malaysia, and Thailand from 2013 to 2023 using the Revealed Comparative Advantage (RCA) method. The study uses secondary data collected from Trademap and UN Comtrade, focusing on the value and volume of areca nut exports. The results indicate that Indonesia has a relatively strong export competitiveness, as shown by RCA values consistently above 1 in several years. However, Indonesia faces competition from Myanmar and Thailand, which also demonstrate significant comparative advantages. The findings suggest that the Indonesian government should focus on improving export policies, ensuring product quality, and expanding market access to sustain and improve the competitiveness of Indonesian areca nut in the UAE market.
Development and Performance Validation of a Prototype Digital pH and Temperature Meter for Consumer Applications Siregar, Ikhsan; Arifiyanto, Joiverdia; Wibowo, Rulianda Purnomo; Muhammad, Mahatir
Jurnal Penelitian Pendidikan IPA Vol 11 No 11 (2025): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i11.12434

Abstract

This study aims to develop and evaluate an Arduino-based digital pH meter and thermometer prototype equipped with automatic temperature compensation (ATC) and a 3D-printed casing for practical household and micro-industrial applications. The device was tested on fifteen consumer products from four categories—food, beverages, hygiene, and cosmetics—at three temperature levels (30°C, 35°C, and 40°C). Measured parameters included pH, millivolt (mV) outputs, stabilization time, and reading stability. The results showed that pH values decreased with increasing temperature, consistent with H⁺ ion dissociation principles. For example, vinegar (pH 2.80–2.68) and soda (pH 3.45–3.36) showed the most significant decreases, while basic products such as detergent (pH 10.20–10.08) and liquid soap (pH 9.10–9.00) exhibited stable negative mV readings. The average stabilization time ranged from 6 to 12 seconds, with all samples showing stable readings (±0.01 pH variation). Calibration results indicated that three-point calibration (pH 4, 7, 10) produced the highest accuracy (±0.04 pH; R² = 0.993). The 3D-printed PLA casing provided durable protection, ergonomic handling, and fast reprintability. Overall, the prototype demonstrated reliable, accurate, and stable performance, proving that low-cost hardware and software integration can yield an efficient and accessible pH and temperature measuring tool.
Digitalization of rabbit farming in Medan City, Indonesia Purnomo Wibowo, Rulianda; Siregar, Galih Ari Wirawan; Hayatunnufus, Hayatunnufus; Khaliqi, Muhammad; Gurning, Herfita Rizki Hasanah
Journal of Saintech Transfer Vol. 8 No. 2 (2025): Publication in Press
Publisher : Talenta Publisher Universitas Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jst.v8i2.13668

Abstract

Rabbit farming is presently being developed as an alternative source of animal protein in Indonesia. Some of these challenges include the appropriate keeping of records related to production processes and the marketing of products. In response to the challenges encountered by rabbit farming group, a proposed solution entails offering training on the use of digital applications for financial bookkeeping and marketing purposes. This community service initiative is geared towards facilitating the implementation of an Android application aimed at enhancing the operational efficiency of rabbit farming businesses. The approach used in this community service is Participatory Rural Appraisal. The results of the Community Service activities indicated that the farmers were proficient in using the Adorabbit application and followed the instructions effectively. Based on this observation, the adorabbit application was inferred to provide significant assistance to rabbit farmers in Medan City, specifically in the areas of recording rabbit production and managing finances, thereby, enabling the enhancement and expansion of their livestock businesses.
Co-Authors Abdilah Ragilia M Agustina Agustina Andri Suryadi Prasetya Angga Satria Annisa Adawiyah Annisa Audina Purba Ar Raihan Suti Nasution Ardiansyah Toy, Jefry Arifiyanto, Joiverdia Atika Hidayati Batubara, Mhd. Zulfadli Beby Karina Fawzeea Sembiring Binaria Sinaga Christine Caroline Pangaribuan Christy Ardelia Tarigan David Dior J Lubis Dedy Widarta Diah Ramadhani Sigalingging Dian Pebriyani Diana Chalil Dwi Rachmina Elfira Rahmadani Emalisa Emalisa Emalisa Emalisa Endang Rizkinawaty Sembiring Endang Sulistya Rini Faiz Andito Fery Putra Alam Bara Munthe Feryanto Habibulah Hakim, Tharmizi Harsanto, Willy Aria Hasman Hasyim Hasugian, Hardy Hayatunnufus Hayatunnufus Henny Crosita Limbong Herawati Herfita Rizki Hasanah Gurning, Herfita Rizki Hasanah Ibnu Afdillah Lubis Ikhsan Siregar Ilma, Fitri Indrawati, Titien Indriyanti, Tietin Inomo Pratama Intan Mulia Intan, Seli Venny Irawan, Muhammad Ari isfenti sadalia Isfenti Sadalia Iskandarini Kellin Tarigan Kesuma, Sinar I Indra Laurensius Parsaulian Sitinjak Lindawati Lindawati Lovina Ginting Lusi Laura Pasaribu Mahdi Maimuddin Noor Malau, Leo Rio Ependi Meilita Tryana Sembiring, Meilita Tryana Meutia, Anna Muhammad Jufri Muhammad Khaliqi Muhammad, Mahatir N. Nazaruddin Natalie Jessica Regina Surbakti Nazaruddin M Negara, Lubis Satia Nurbaty, Lubis Arlina Prihatin Lumbanraja Qaedina Tio Athira R. Rambe, Khoiru Rabbani, Ali Rahmanta Rahmanta Ginting Rahmanta Rahmanta, Rahmanta Raimon J R Hutauruk Riantri Barus, Riantri Rini, Endang Sulystia Rohni A Damanik Ronald Sibuea Rosadi, Arief Fareza Safrizal Safrizal Salmiah Salmiah Sari Br Surbakti, Dian Permata Satia Negara Lubis Satia Negara Lubis Satia Negara Lubis Sepri Ginting Siahaan, Elisabet Silvia Febrina Lubis Simanjuntak, Chrismasya Rosiana Tamara Sinar Indra Kesuma Sinar Indra Kesuma SIREGAR, GALIH ARI WIRAWAN Siregar, Qurratu Ayuni Siregar, Wirda Zahra Siti Khadijah Nasution Siti Nur Arafah Sri Fajar Ayu Sugih Arto Pujangkoro Sugih Harto Pujangkoro Surbakti, Natalie Jessica Regina Suri, Tasha Ningtyas Surya Sevi Wijayanna Tobing Syafrizal Helmi Situmorang Syahfitri, Khofifah Dwi Tanti Novianti Tavi Supriana Tavi Supriana Tavi Supriana Thomson Sebayang Thomson Sebayang Wahyu Ario Pratomo Yaya Hasanah yeni absah Yeni Absah Yessi Claudia Sianipar Yusak Maryunianta Zednita Azriani