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All Journal Jurnal Pertanian Terpadu Jurnal Nusa Sylva Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Jurnal Pengabdian kepada Masyarakat SWARNA J-Icon : Jurnal Komputer dan Informatika SWARNA: Jurnal Pengabdian Kepada Masyarakat
Jemmy Jonson Sula Dethan
Universitas Kristen Artha Wacana
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Public Health Social Sciences Other

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PEMBUATAN PAKAN TERNAK MANDIRI KELOMPOK TANI TERNAK UNGGAS DESA LAKAT KECAMATAN KUATNANA KABUPATEN TIMOR TENGAH SELATAN Marten L. Lano; Jemmy J.S. Dethan
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 2 No. 1: Juni 2022
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/jabdi.v2i1.2267

Abstract

The Tafeun Tenab Farmer's Group is located in Lakat Village, South Central Timor. This group has 8 sub groups with 8 members each. Sub groups 1 and 2, cultivate broiler chickens with a monthly turnover of Rp. 13.800.000,-. The problem faced is the low profit caused by the high price of broiler feed. The price of feed per sack containing 50 kg at the location is Rp. 460,000, - and for 300 heads / month 15 sacks of feed are needed. With the DOC/box price of IDR 1,100,000 and the need for vaccines and medicines, a minimum capital of IDR 12,500,000 is required. From the turnover and capital that must be prepared, the profit margin is only around IDR 1,300,000. Given these problems, efforts are needed to provide cheaper and quality feed. Because it is induced by feed technology with local ingredients from corn and bran available which is added with concentrate at a relatively cheap price. The technology that was induced was in the form of feed manufacturing technology, corn flour equipment, mixing equipment and pellet printing. The results of the application of independent animal feed technology are produced: 1). There is a savings in the cost of procuring feed up to 70% or from the original Rp. 6,900,000/300 head/month to Rp. 5,655,000/300 head/month. 2). Availability of 2 units of corn grinder, 2 units of mixer and pellet press and 3). There is a transfer of knowledge and skills in making poultry feed independently and sustainably in partner groups.
Pengelolaan Bioenergi Berbasis Kayu Lokal: Integrasi Kajian Teknis dan Sosial di Wilayah Perbatasan Indonesia–Timor Leste Kehi, Maria Y. R.; Dethan, Jemmy Jonson Sula; Koehuan, Jonathan E.; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 13 No 1 (2025): Jurnal Pertanian Terpadu Jilid XIII Nomor 1 Juni 2025
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v13i1.609

Abstract

The reliance of border communities on firewood as a primary energy source remains high due to limited access to modern energy. This study aims to examine the bioenergy potential of three locally available wood types commonly used by residents of Alas Selatan Village, Kobalima Timur District, Malaka Regency, East Nusa Tenggara: Leucaena leucocephala (Lamtoro), Tectona grandis (Teak), and Tamarindus indica (Tamarind). A descriptive quantitative and qualitative approach was employed. Laboratory tests were conducted to measure moisture content and ash content as indicators of combustion efficiency. Observations and interviews were carried out to explore community practices in the collection and storage of firewood. The results show that all three wood types exhibit low moisture content (<8%), with Tamarind having the lowest at 7.57%. In terms of ash content, Lamtoro proved to be the most efficient, producing only 1.3% ash, followed by Teak (2.355%) and Tamarind (4.725%). The community applies adaptive firewood storage methods, such as storing wood under stilt houses and above kitchen hearths (para-para), which facilitate effective drying. These findings indicate that the management of locally sourced wood-based bioenergy holds significant potential as a sustainable energy alternative in border regions, particularly when supported by technical education and appropriate conservation policies.
Pengelolaan Bioenergi Berbasis Kayu Lokal: Integrasi Kajian Teknis dan Sosial di Wilayah Perbatasan Indonesia–Timor Leste Kehi, Maria Y. R.; Dethan, Jemmy Jonson Sula; Koehuan, Jonathan E.; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 13 No 1 (2025): Jurnal Pertanian Terpadu Jilid XIII Nomor 1 Juni 2025
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v13i1.609

Abstract

The reliance of border communities on firewood as a primary energy source remains high due to limited access to modern energy. This study aims to examine the bioenergy potential of three locally available wood types commonly used by residents of Alas Selatan Village, Kobalima Timur District, Malaka Regency, East Nusa Tenggara: Leucaena leucocephala (Lamtoro), Tectona grandis (Teak), and Tamarindus indica (Tamarind). A descriptive quantitative and qualitative approach was employed. Laboratory tests were conducted to measure moisture content and ash content as indicators of combustion efficiency. Observations and interviews were carried out to explore community practices in the collection and storage of firewood. The results show that all three wood types exhibit low moisture content (<8%), with Tamarind having the lowest at 7.57%. In terms of ash content, Lamtoro proved to be the most efficient, producing only 1.3% ash, followed by Teak (2.355%) and Tamarind (4.725%). The community applies adaptive firewood storage methods, such as storing wood under stilt houses and above kitchen hearths (para-para), which facilitate effective drying. These findings indicate that the management of locally sourced wood-based bioenergy holds significant potential as a sustainable energy alternative in border regions, particularly when supported by technical education and appropriate conservation policies.
Pengelolaan Bioenergi Berbasis Kayu Lokal: Integrasi Kajian Teknis dan Sosial di Wilayah Perbatasan Indonesia–Timor Leste Kehi, Maria Y. R.; Dethan, Jemmy Jonson Sula; Koehuan, Jonathan E.; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 13 No 1 (2025): Jurnal Pertanian Terpadu Jilid XIII Nomor 1 Juni 2025
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v13i1.609

Abstract

The reliance of border communities on firewood as a primary energy source remains high due to limited access to modern energy. This study aims to examine the bioenergy potential of three locally available wood types commonly used by residents of Alas Selatan Village, Kobalima Timur District, Malaka Regency, East Nusa Tenggara: Leucaena leucocephala (Lamtoro), Tectona grandis (Teak), and Tamarindus indica (Tamarind). A descriptive quantitative and qualitative approach was employed. Laboratory tests were conducted to measure moisture content and ash content as indicators of combustion efficiency. Observations and interviews were carried out to explore community practices in the collection and storage of firewood. The results show that all three wood types exhibit low moisture content (<8%), with Tamarind having the lowest at 7.57%. In terms of ash content, Lamtoro proved to be the most efficient, producing only 1.3% ash, followed by Teak (2.355%) and Tamarind (4.725%). The community applies adaptive firewood storage methods, such as storing wood under stilt houses and above kitchen hearths (para-para), which facilitate effective drying. These findings indicate that the management of locally sourced wood-based bioenergy holds significant potential as a sustainable energy alternative in border regions, particularly when supported by technical education and appropriate conservation policies.
Estimasi Energi Tenaga Kerja Manusia dalam Budidaya Tomat Servow dengan Sistem Irigasi Tetes di Nusa Tenggara Timur Fatin, Osias; Koehuan, Jonathan Ebet; Dethan, Jemmy Jonson Sula; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 13 No 1 (2025): Jurnal Pertanian Terpadu Jilid XIII Nomor 1 Juni 2025
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v13i1.612

Abstract

Budidaya tomat (Solanum lycopersicum) merupakan salah satu kegiatan pertanian yang bernilai ekonomi tinggi dan membutuhkan efisiensi sumber daya, khususnya di daerah dengan keterbatasan air dan tenaga kerja seperti Nusa Tenggara Timur. Penelitian ini bertujuan untuk mengestimasi energi atau tenaga kerja manusia yang dikeluarkan pada setiap tahapan budidaya tomat Servow hingga fase vegetatif dengan menggunakan sistem irigasi tetes. Metode yang digunakan meliputi survei, wawancara, observasi lapangan, serta pengukuran denyut nadi sebelum dan sesudah aktivitas. Estimasi energi dihitung menggunakan rumus fisiologis berdasarkan perbedaan denyut nadi, durasi kerja, berat badan, dan umur tenaga kerja. Hasil menunjukkan bahwa tahap perawatan tanaman memerlukan energi tertinggi sebesar 360,49 kkal, diikuti oleh tahap persiapan lahan (229,35 kkal), pemasangan irigasi (148,52 kkal), pengairan (147,00 kkal), dan penanaman (46,04 kkal). Aktivitas berintensitas tinggi seperti pemasangan ajir dan pembersihan gulma menyebabkan peningkatan denyut nadi hingga 40 denyut/menit. Temuan ini menekankan pentingnya penerapan prinsip ergonomi dan manajemen beban kerja dalam sistem pertanian berkelanjutan, serta menunjukkan hubungan signifikan antara intensitas kerja fisik dan pengeluaran energi.
Estimasi Energi Tenaga Kerja Manusia dalam Budidaya Tomat Servow dengan Sistem Irigasi Tetes di Nusa Tenggara Timur Fatin, Osias; Koehuan, Jonathan Ebet; Dethan, Jemmy Jonson Sula; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 13 No 1 (2025): Jurnal Pertanian Terpadu Jilid XIII Nomor 1 Juni 2025
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v13i1.612

Abstract

Budidaya tomat (Solanum lycopersicum) merupakan salah satu kegiatan pertanian yang bernilai ekonomi tinggi dan membutuhkan efisiensi sumber daya, khususnya di daerah dengan keterbatasan air dan tenaga kerja seperti Nusa Tenggara Timur. Penelitian ini bertujuan untuk mengestimasi energi atau tenaga kerja manusia yang dikeluarkan pada setiap tahapan budidaya tomat Servow hingga fase vegetatif dengan menggunakan sistem irigasi tetes. Metode yang digunakan meliputi survei, wawancara, observasi lapangan, serta pengukuran denyut nadi sebelum dan sesudah aktivitas. Estimasi energi dihitung menggunakan rumus fisiologis berdasarkan perbedaan denyut nadi, durasi kerja, berat badan, dan umur tenaga kerja. Hasil menunjukkan bahwa tahap perawatan tanaman memerlukan energi tertinggi sebesar 360,49 kkal, diikuti oleh tahap persiapan lahan (229,35 kkal), pemasangan irigasi (148,52 kkal), pengairan (147,00 kkal), dan penanaman (46,04 kkal). Aktivitas berintensitas tinggi seperti pemasangan ajir dan pembersihan gulma menyebabkan peningkatan denyut nadi hingga 40 denyut/menit. Temuan ini menekankan pentingnya penerapan prinsip ergonomi dan manajemen beban kerja dalam sistem pertanian berkelanjutan, serta menunjukkan hubungan signifikan antara intensitas kerja fisik dan pengeluaran energi.
Estimasi Energi Tenaga Kerja Manusia dalam Budidaya Tomat Servow dengan Sistem Irigasi Tetes di Nusa Tenggara Timur Fatin, Osias; Koehuan, Jonathan Ebet; Dethan, Jemmy Jonson Sula; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 13 No 1 (2025): Jurnal Pertanian Terpadu Jilid XIII Nomor 1 Juni 2025
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v13i1.612

Abstract

Budidaya tomat (Solanum lycopersicum) merupakan salah satu kegiatan pertanian yang bernilai ekonomi tinggi dan membutuhkan efisiensi sumber daya, khususnya di daerah dengan keterbatasan air dan tenaga kerja seperti Nusa Tenggara Timur. Penelitian ini bertujuan untuk mengestimasi energi atau tenaga kerja manusia yang dikeluarkan pada setiap tahapan budidaya tomat Servow hingga fase vegetatif dengan menggunakan sistem irigasi tetes. Metode yang digunakan meliputi survei, wawancara, observasi lapangan, serta pengukuran denyut nadi sebelum dan sesudah aktivitas. Estimasi energi dihitung menggunakan rumus fisiologis berdasarkan perbedaan denyut nadi, durasi kerja, berat badan, dan umur tenaga kerja. Hasil menunjukkan bahwa tahap perawatan tanaman memerlukan energi tertinggi sebesar 360,49 kkal, diikuti oleh tahap persiapan lahan (229,35 kkal), pemasangan irigasi (148,52 kkal), pengairan (147,00 kkal), dan penanaman (46,04 kkal). Aktivitas berintensitas tinggi seperti pemasangan ajir dan pembersihan gulma menyebabkan peningkatan denyut nadi hingga 40 denyut/menit. Temuan ini menekankan pentingnya penerapan prinsip ergonomi dan manajemen beban kerja dalam sistem pertanian berkelanjutan, serta menunjukkan hubungan signifikan antara intensitas kerja fisik dan pengeluaran energi.
Model Prediksi Nilai Panas Tinggi Biobriket Daun Kesambi (Schleichera oleosa) Torrefied Dethan, Jemmy Jonson Sula; Kette, Arlindo U. S.
Jurnal Pertanian Terpadu Vol 12 No 1 (2024): Jurnal Pertanian Terpadu Jilid XII Nomor 1 Juni 2024
Publisher : Sekolah Tinggi Pertanian Kutai Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36084/jpt..v12i1.543

Abstract

Biomassa, khususnya dalam bentuk biobriket, muncul sebagai solusi menjanjikan yang menawarkan pilihan energi terbarukan dan ramah lingkungan. Melalui analisis dan eksperimen menyeluruh, telah ditunjukkan bahwa nilai kalor biobriket dipengaruhi secara signifikan oleh variabel seperti rasio perekat dan ukuran bubuk. Model statistik telah dikembangkan untuk memprediksi secara akurat nilai kalor tinggi (HHV) biobriket berdasarkan variabel-variabel ini, sehingga memberikan wawasan berharga untuk mengoptimalkan proses produksinya. Dengan menyempurnakan rasio perekat dan ukuran bubuk, efisiensi energi dan kelayakan ekonomi produksi biobriket dapat ditingkatkan. Lebih jauh lagi, studi ini menggarisbawahi pentingnya biomassa sebagai sumber energi terbarukan yang mampu mengurangi emisi gas rumah kaca dan mengurangi ketergantungan pada bahan bakar fosil yang jumlahnya terbatas. Dengan memanfaatkan biomassa melalui cara-cara inovatif, seperti melalui produksi biobriket, masa depan energi yang lebih berkelanjutan dapat diciptakan. Studi ini berkontribusi untuk memajukan pemahaman kita tentang biomassa sebagai alternatif energi yang layak dan menyoroti pentingnya inovasi berkelanjutan dalam mencapai solusi energi berkelanjutan. Dengan memanfaatkan potensi biomassa, kita dapat membuka jalan menuju masa depan yang lebih bersih dan hijau untuk generasi mendatang
Characteristics of Residence Time of the Torrefaction Process on the Results of Pruning Kesambi Trees Dethan, Jemmy Jonson Sula; Haba Bunga, Fredrik Julius; Ledo, Mellissa Erlyn Stephanie; Abineno, Jemseng Carles
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.102-113

Abstract

The excessive use of Kesambi (Schleichera oleosa) tree stems threatens the sustainability of Kesambi plants since it takes several decades for them to regenerate new stems. This research aims to determine the characteristics of torrefied Kesambi tree pruning. The used reactor has a diameter of 400 mm. An iron basket is positioned 100 mm above the reactor base, holding the material within an aluminum cylinder. The reactor temperature is maintained at 300°C using a K-type thermocouple sensor. A heater is placed near the reactor base and covered. The characteristics of the semi-charcoal biomass product are identified, including mass yield, water absorption capacity, moisture content (D3173, 2013); ash content (ASTM D1102-84. Standard Test Method for Ash in Wood, 2013); volatile matter (%) (ASTMD3175, 2011); and fixed carbon (%) (ASTM, 2013). The color of the leaves and the pruned Kesambi tree changes from brown to black as the residence time increases. The results of pruning the Kesambi tree at different torrefaction residence times indicate a decrease in mass yield with an increase in residence time, with the lowest mass yield observed at a residence time of 20 minutes. The water absorption capacity of torrefied Kesambi tree pruning material is found to be between 0.65% and 0.675%, or less than 1% and higher heating value (HHV) prediction 29.0750 MJ/kg.Keywords: Kesambi, Pruning, Residence, Time, Torrefaction
PEMANFAATAN SUMBER DAYA AIR SUNGAI BATAS NEGARA DI DESA ALAS SELATAN KECAMATAN KOBALIMA TIMUR Amaral, Maria Hermalinda Soi; Jonathan, Koehuan; Dethan, Jemmy J. S.
Jurnal Nusa Sylva Vol. 25 No. 2 (2025): JURNAL NUSA SYLVA
Publisher : Universitas Nusa Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31938/jns.v25i2.853

Abstract

Currently, attention is increasing on the management of border rivers, particularly in ASEAN member countries. A large portion of the border between Indonesia and Timor-Leste is river-bound, and communities are highly active in exploiting its potential. However, studies on river resource utilization in the border region between Indonesia and Timor-Leste are still very rare. Therefore, this study aims to analyze the relationship between community social characteristics, perceptions of river utilization, and analysis of the physical condition of the river. This research was conducted on the Motamasin River in Alas Selatan Village, on the Indonesia-Timor Leste border. A mixed methods approach was used, combining quantitative data in the form of social surveys and river discharge measurements with qualitative data from community perceptions through interviews and field observations. The results indicate that the majority of the community is of productive age and has a secondary or higher education level, which supports their understanding of the importance of sustainable water management. The Motamasin River is predominantly used for household and agricultural purposes, while fisheries use is still limited due to water quality degradation. The river's morphology exhibits intermittent characteristics with significant discharge fluctuations, ranging from 100 to 400 m³/s. These findings emphasize the importance of an interdisciplinary approach to water resource management that simultaneously considers social and physical aspects, especially in vulnerable border areas that have not been optimally served by national development policies.
Co-Authors Abineno, Jemseng C Amaral, Maria Hermalinda Soi Arista Marlince Tamonob Arlindo Umbu Saki Kette Bullu, Novi I Bunga, Fredrik J. Haba Fredrik Julius Haba Bunga Haba Bunga, Fredrik Julius Jemseng Carles Abineno Jonathan Ebet Koehuan Kette, Arlindo U. S. Klau, Maria Ingria Krislayanto, Innestasya Ledo, Mellissa Erlyn Stephanie Marten Luter Lano Marten Luter Lano Marthen Makaborang Mellissa Erlyn Stephanie Ledo Ongky G. Toy Roby Jonathan Tonfanus Sabuna, Melani Suratama, Susana M. Yuni Kemala Dewi