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KARAKTERISTIK MUTU DAN FISIK BIJI KOPI ARABIKA DENGAN BEBERAPA METODA PENGOLAHAN DI KABUPATEN SIMALUNGUN PROPINSI SUMATERA UTARA Retmono Agung Winarno; Mawar Indah Perangin-angin
Agrica Ekstensia Vol 14 No 1 (2020): Edisi Juni
Publisher : Politeknik Pembangunan Pertanian Medan

Some of the problems in developing coffee in Simalungun, one of which is the low quality of the product. Determinants of coffee quality are influenced by geographical indications of the origin of coffee and how the coffee is processed. The purpose of this research is to determine the quality characteristics and physical characteristics of coffee beans produced from several locations in Simalungun Regency, North Sumatra with various coffee processing methods. The material used is red cherry Arabica from several locations in Simalungun namely Raya District, Purba District, and Dolok Pardamean District, with a variety of processing methods (dry method, semi-wash method, full wash method, and honey method). The parameters observed included quality characteristics based on SNI 01-2907-2008 and physical characteristics, including seed weight, color and yield of coffee beans. The results showed that the quality characteristics of coffee beans based on SNI 01-2907-2008 varied, namely classified in quality 2, quality 3, quality 4b, quality 5, quality 6 and there were treatments on coffee beans that do not include into SNI standards. The physical characteristics produced were weight per seed ranged from 0.163 to 0.197 gram, color is fresh and green, and the yield value ranges from 13.19% to 21.48%.

KARAKTERISTIK SIFAT KIMIA BIJI KOPI ARABIKA DENGAN BEBERAPA METODA PENGOLAHAN di KABUPATEN SIMALUNGUN PROVINSI SUMATERA UTARA RETMONO AGUNG WINARNO; Mawar Indah BR Berangin-angin
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan (Journal of Agricultural Sciences and Veteriner) Vol. 9 No. 2 (2021): Desember
Publisher : Fakultas Pertanian Universitas Majalengka

Coffee in North Sumatra have an important meaning in the socio-economic aspects of people's lives. One of the problems with developing coffee in Simalungun is the low quality of products. Determinants of coffee quality are influenced by geographical indications of the origin of coffee and how the coffee is processed. The purpose of this study was to determine the chemical characteristics of coffee beans produced from several locations in Simalungun Regency, North Sumatra with various coffee processing methods. The material used is red cherry Arabica coffee fruit taken from several locations, namely Raya District, Purba District and Dolok Pardamean District, with a variety of processing methods (dry method, semi-wash method, full-wash method, and honey method). The observed parameters where the chemical characteristics of coffee bean, including water content, caffeine content, ash content, and free fatty acid content. The results showed that the characteristics of the chemical properties of coffee beans produced by various processing methods were not different. Caffeine levels of coffee beans ranged from 7808.71 mg / kg the lowest to the highest 10422.11 mg / kg. Ash content ranged from 3.71%, the lowest to the highest 4.4%. Free fatty acid content from three district an average was 0.06%.

KARAKTERISTIK MUTU SENSORI BIJI KOPI ARABIKA DENGAN VARIASI SUHU DAN LAMA PENYANGRAIAN Perangin-Angin, Mawar Indah Br; Winarno, Retmono Agung
Agrica Ekstensia Vol 18 No 1 (2024): Edisi Juni
Publisher : Politeknik Pembangunan Pertanian Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55127/ae.v18i1.196

Setiap varietas kopi pasti mempunyai citarasa atau karakteristik yang berbeda. Perlakuan yang berbeda pada penyangraian juga akan menjadi salah satu penentu karakteristik khas kopi. Penelitian ini bertujuan menganalisis karakteristik mutu sensori biji kopi arabika menggunakan variasi suhu dan lama penyangraian. Buah kopi yang digunakan adalah buah kopi arabika varietas gayo yang diolah menjadi green bean dengan metode semi basah. Metode penelitian dengan rancangan acak lengkap dua faktor, yaitu faktor suhu penyangraian, dan lama penyangraian. Perlakuan penyangraian dilakukan dengan tiga tingkat suhu (160 0C, 170 0C, dan 180 0C) dan tiga waktu lama penyangraian (14 menit, 17 menit, dan 20 menit). Parameter yang dianalisis meliputi tingkat kesukaan oleh panelis tidak terlatih, tingkat kesukaan oleh panelis terlatih, dan karakteristik mutu sensori berupa analisis deskripitif kuantitatif. Penelitian ini menghasilkan kesimpulan, yaitu: a) Berdasarkan pengujian oleh panelis tidak terlatih, didapatkan bahwa perlakuan A3B2 (suhu 180 0C, waktu 17 menit) menghasilkan bubuk kopi dengan tingkat kesukaan tertinggi dengan nilai 2,80; b) Berdasarkan pengujian oleh panelis terlatih, disimpulkan bahwaperlakuan A2B3 (suhu 170 0C, waktu 20 menit), menghasilkan bubuk kopi dengan mutu terbaik dengan nilai 88,75; dan c) Deskriptif kuantitatif seduhan kopi dari ketiga perlakuan proses penyangraian paling disukai (A3B2, A2B3, dan A3B3) mempunyai profil yang mirip.

The Effect of Knowledge, Motivation, Marketing Ease Expectation, and Income Expectation on Interest of Hydroponic Vegetable Entrepreneurship in the Region Winarno, Retmono Agung
Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE) Vol 7 No 3 (2024): Sharia Economics
Publisher : Sharia Economics Department Universitas KH. Abdul Chalim, Mojokerto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31538/iijse.v7i3.3877

This study aims to discover the knowledge, motivation, marketing ease expectation, and income expectation of the interest in hydroponic vegetable entrepreneurship. The development of hydroponic agriculture as a land utilization measure requires direction and the support of knowledge about hydroponics. This method used was quantitative with questionnaires on the studied variables. In this study, researchers took 114 respondents in Deli Serdang Regency, North Sumatra Province. The analysis of this study used a structural Equation Model (SEM) approach with the help of smart PLS. The results explained that interest in hydroponic entrepreneurship is influenced by marketing ease expectations, income expectations, motivation, and knowledge.

Pemberdayaan Petani melalui Penyuluhan Pemanfaatan Keong Mas sebagai POC: Evaluasi Rancangan Penyuluhan Widhya Tamara; Nurliana Harahap; Retmono Agung Winarno
JURIBMAS : Jurnal Hasil Pengabdian Masyarakat Vol 5 No 1 (2026): Juli 2026
Publisher : LKP KARYA PRIMA KURSUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62712/juribmas.v5i1.1084

Kegiatan pengabdian kepada masyarakat ini bertujuan penyuluhan untuk merubah sikap petani dalam memanfaatkan keong mas sebagai bahan baku pupuk organik cair (POC) pada tanaman padi sawah di Desa Pasar Melintang Kecamatan Lubuk Pakam Kabupaten Deli Serdang. Keong mas selama ini dikenal sebagai hama tanaman padi yang menyebabkan kerusakan pada fase awal pertumbuhan tanaman. Namun, keong mas memiliki kandungan unsur hara yang berpotensi dimanfaatkan sebagai pupuk organik cair. Kegiatan dilakukan melalui pendekatan penyuluhan pertanian yang meliputi identifikasi potensi wilayah, penyusunan rancangan penyuluhan, pelaksanaan penyuluhan, serta evaluasi kegiatan. Teknik pengumpulan data dilakukan melalui observasi, wawancara, dokumentasi, dan penyebaran kuesioner kepada pengurus kelompok tani padi sawah. Hasil kegiatan menunjukkan bahwa tingkat penerimaan seluruh rancangan penyuluhan memperoleh persentase sebesar 86,71% dengan kategori sangat efektif. Tingkat penerimaan terhadap materi penyuluhan, metode, media, volume kegiatan, lokasi, waktu, dan biaya penyuluhan juga berada pada kategori sangat efektif. Selain itu, jumlah petani yang bersedia memanfaatkan keong mas sebagai bahan baku POC mencapai 56,41% atau sebanyak 22 orang dari total responden, sehingga telah melampaui target yang ditetapkan sebelumnya. Kegiatan penyuluhan ini tidak hanya meningkatkan pengetahuan petani mengenai pemanfaatan keong mas sebagai pupuk organik cair, tetapi juga merubah sikap petani memanfaatkan keong mas sebagai POC. Dengan demikian, pemanfaatan keong mas sebagai pupuk organik cair dapat menjadi alternatif pemberdayaan petani dalam mendukung pertanian berkelanjutan melalui pemanfaatan sumber daya lokal yang tersedia di lingkungan sekitar.

The Integration of the Teaching Factory (TEFA) in Fostering an Entrepreneurial Spirit as an Effort to Cultivate a Generation of Job Creators in the Modern Industrial Era Retmono Agung Winarno
Indonesian Journal of Agriculture and Environmental Analytics Vol. 5 No. 2 (2026): July 2026
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/ijaea.v5i2.16556

The integration of Teaching Factory (TEFA) in vocational education has become an important strategy in addressing the challenges of the modern industrial era, which requires human resources not only to be job-ready but also capable of creating employment opportunities. The practice-based and industry-oriented TEFA approach is considered effective in fostering students’ entrepreneurial spirit through direct learning experiences in production activities, business management, and marketing. This study aims to analyze the effect of Teaching Factory (TEFA) implementation on the development of entrepreneurial spirit as an effort to create a generation of job creators in the modern industrial era. The study employed a descriptive quantitative approach involving 50 student respondents. Data analysis techniques included descriptive analysis, validity testing, reliability testing, and simple linear regression using SPSS 25.0 for Windows. The results showed that the implementation of TEFA was categorized as high with an average score of 3.94. The activity objectives aspect obtained the highest score of 4.06, while the facilities and infrastructure aspect obtained the lowest score of 3.82. The validity test indicated that all statement items were valid with rcount > rtable (0.361), while the reliability test produced a Cronbach’s Alpha value of 0.815, indicating very high reliability. The simple linear regression analysis showed that TEFA had a significant effect on students’ entrepreneurial spirit with a significance value of 0.012 < 0.05 and a regression coefficient of 0.542. Based on these findings, it can be concluded that the integration of TEFA is able to foster students’ entrepreneurial spirit through industry-based practical learning, thereby having the potential to create a generation of creative, innovative, and adaptive job creators in the modern industrial era.

Rancangan Penyuluhan Penerapan Pupuk Organik Cair (POC) dari Limbah Cair Tahu di Kecamatan Bandar Kabupaten Bener Meriah Nurul Hazzah; Yusra Muharami Lestari; Retmono Agung Winarno
Jurnal Riset Multidisiplin Agrisosco Vol 4, No 2 (2026): Vol 4 No 2 Agustus 2026
Publisher : Lembaga Penelitian, Pengembangan, Pemberdayaan Potensi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61316/jrma.v4i2.374

Penelitian ini bertujuan untuk merancang program penyuluhan pertanian terkait penerapan pupuk organik cair (POC) yang berasal dari limbah air tahu di Kecamatan Bandar, Kabupaten Bener Meriah. Penelitian ini dilakukan untuk mendorong pemanfaatan limbah air tahu sebagai alternatif pupuk ramah lingkungan dan mendukung pertanian hortikultura berkelanjutan sekaligus mengurangi pencemaran lingkungan akibat limbah yang belum diolah. Penelitian ini menggunakan pendekatan deskriptif kuantitatif. Data dikumpulkan dari 48 anggota dua Kelompok Wanita Tani (KWT) di Desa Bahgie Bertona melalui wawancara, kuesioner, observasi, dan diskusi terarah. Teknik sensus digunakan karena jumlah populasi kurang dari 100 responden. Potensi wilayah dan masalah pertanian diidentifikasi menggunakan metode Rapid Rural Appraisal (RRA), sedangkan isu prioritas ditentukan melalui metode USG. Rancangan penyuluhan kemudian dikembangkan dan dievaluasi rancangan penyuluhan dikembangkan dan dievaluasi berdasarkan tujuh aspek, yaitu materi, metode, media, volume, waktu, lokasi, dan biaya. Data dianalisis secara deskriptif menggunakan pendekatan kuantitatif dan skala Likert. Hasil penelitian menunjukkan bahwa Rapid Rural Appraisal (RRA) mengidentifikasi limbah cair tahu yang tidak terpakai sebagai sumber potensial. Rancangan penyuluhan bertujuan meningkatkan keterampilan petani dalam menerapkan pupuk organik cair (POC) di lahan pertanian hortikultura dalam satu musim tanam sasarannya adalah anggota dan ketua kelompok wanita tani yang terlibat dalam budidaya hortikultura. Hasil validasi menunjukkan bahwa rancangan penyuluhan mencapai tingkat efektivitas 88,39%, dikategorikan sangat efektif. Jumlah petani yang menerapkan POC meningkat dari 20 orang (41,67 %) menjadi 25 orang (52,08%).

Rancangan Penyuluhan Pembuatan Dan Pemanfaatan Bokashi Dari Limbah Eceng Gondok Untuk Meningkatkan Kesuburan Tanah Pada Tanaman Melon (Cucumis Melo L) di Kecamatan Tanjung Beringin Kabupaten Serdang Bedagai Dwi Febrimeli; Retmono Agung Winarno; Siregar, Riski Gunawan; Febrimeli, Dwi; Winarno, Retmono Agung
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 11 No. 3 (2026): September
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v11i3.5960

Pemanfaatan sumber daya lokal melalui pengolahan limbah organik menjadi pupuk bokashi merupakan salah satu upaya mendukung pertanian berkelanjutan. Eceng gondok (Eichhornia crassipes) yang tersedia di saluran irigasi, rawa, dan badan air di Desa Nagur, Kecamatan Tanjung Beringin, Kabupaten Serdang Bedagai, belum dimanfaatkan secara optimal sebagai bahan organik untuk kegiatan budidaya. Kegiatan ini bertujuan menyusun dan melaksanakan penyuluhan mengenai pemanfaatan limbah eceng gondok sebagai bokashi pada budidaya melon berdasarkan potensi wilayah dan kebutuhan petani. Kegiatan melibatkan 30 petani melon dan dilaksanakan melalui observasi, wawancara, penyebaran kuesioner, penyuluhan, serta demonstrasi pembuatan dan penerapan bokashi. Data dianalisis secara deskriptif kuantitatif untuk menggambarkan kondisi wilayah, karakteristik sasaran, tingkat penerimaan, serta penerapan inovasi oleh petani. Hasil kegiatan menunjukkan bahwa tingkat penerimaan petani terhadap penyuluhan mencapai 81,38% dan termasuk kategori sangat setuju. Sebanyak 12 petani (40%) membuat bokashi secara mandiri, sedangkan 15 petani (50%) menerapkan bokashi pada budidaya melon. Kendala dalam pembuatan bokashi secara mandiri meliputi keterbatasan waktu, kesibukan usaha tani, belum terbiasanya petani mengolah limbah organik, dan kebiasaan menggunakan pupuk anorganik. Hasil tersebut menunjukkan bahwa kegiatan penyuluhan dapat mendorong penerimaan dan penerapan awal pemanfaatan eceng gondok sebagai bokashi, tetapi pembuatan secara mandiri masih memerlukan pendampingan berkelanjutan. Extension Program Design for the Utilization of Water Hyacinth Waste as Bokashi in Melon Cultivation in Tanjung Beringin District Abstract The utilization of local resources through the processing of organic waste into bokashi fertilizer is one approach to supporting sustainable agriculture. Water hyacinth (Eichhornia crassipes) available in irrigation canals, swamps, and water bodies in Nagur Village, Tanjung Beringin District, Serdang Bedagai Regency, has not been optimally utilized as an organic material for agricultural activities. This activity aimed to design and implement an extension program on the utilization of water hyacinth waste as bokashi in melon cultivation based on local potential and farmers’ needs. The activity involved 30 melon farmers and was conducted through field observations, interviews, questionnaire distribution, extension activities, and demonstrations of bokashi production and application. Data were analyzed descriptively and quantitatively to describe regional conditions, participant characteristics, acceptance levels, and the application of the innovation by farmers. The results showed that farmers’ acceptance of the extension program reached 81.38%, categorized as very favorable. A total of 12 farmers (40%) independently produced bokashi, while 15 farmers (50%) applied bokashi in melon cultivation. The constraints to independent bokashi production included limited time, farming workload, farmers’ unfamiliarity with processing organic waste, and the habitual use of inorganic fertilizers. These findings indicate that the extension activity encouraged initial acceptance and application of water hyacinth as bokashi; however, independent production still requires continuous assistance.

Rancangan Penyuluhan Pembuatan Dan Pemanfaatan Bokashi Dari Limbah Eceng Gondok Untuk Meningkatkan Kesuburan Tanah Pada Tanaman Melon (Cucumis Melo L) di Kecamatan Tanjung Beringin Kabupaten Serdang Bedagai Dwi Febrimeli; Retmono Agung Winarno; Siregar, Riski Gunawan; Febrimeli, Dwi; Winarno, Retmono Agung
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 11 No. 3 (2026): September
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v11i3.5960

Pemanfaatan sumber daya lokal melalui pengolahan limbah organik menjadi pupuk bokashi merupakan salah satu upaya mendukung pertanian berkelanjutan. Eceng gondok (Eichhornia crassipes) yang tersedia di saluran irigasi, rawa, dan badan air di Desa Nagur, Kecamatan Tanjung Beringin, Kabupaten Serdang Bedagai, belum dimanfaatkan secara optimal sebagai bahan organik untuk kegiatan budidaya. Kegiatan ini bertujuan menyusun dan melaksanakan penyuluhan mengenai pemanfaatan limbah eceng gondok sebagai bokashi pada budidaya melon berdasarkan potensi wilayah dan kebutuhan petani. Kegiatan melibatkan 30 petani melon dan dilaksanakan melalui observasi, wawancara, penyebaran kuesioner, penyuluhan, serta demonstrasi pembuatan dan penerapan bokashi. Data dianalisis secara deskriptif kuantitatif untuk menggambarkan kondisi wilayah, karakteristik sasaran, tingkat penerimaan, serta penerapan inovasi oleh petani. Hasil kegiatan menunjukkan bahwa tingkat penerimaan petani terhadap penyuluhan mencapai 81,38% dan termasuk kategori sangat setuju. Sebanyak 12 petani (40%) membuat bokashi secara mandiri, sedangkan 15 petani (50%) menerapkan bokashi pada budidaya melon. Kendala dalam pembuatan bokashi secara mandiri meliputi keterbatasan waktu, kesibukan usaha tani, belum terbiasanya petani mengolah limbah organik, dan kebiasaan menggunakan pupuk anorganik. Hasil tersebut menunjukkan bahwa kegiatan penyuluhan dapat mendorong penerimaan dan penerapan awal pemanfaatan eceng gondok sebagai bokashi, tetapi pembuatan secara mandiri masih memerlukan pendampingan berkelanjutan. Extension Program Design for the Utilization of Water Hyacinth Waste as Bokashi in Melon Cultivation in Tanjung Beringin District Abstract The utilization of local resources through the processing of organic waste into bokashi fertilizer is one approach to supporting sustainable agriculture. Water hyacinth (Eichhornia crassipes) available in irrigation canals, swamps, and water bodies in Nagur Village, Tanjung Beringin District, Serdang Bedagai Regency, has not been optimally utilized as an organic material for agricultural activities. This activity aimed to design and implement an extension program on the utilization of water hyacinth waste as bokashi in melon cultivation based on local potential and farmers’ needs. The activity involved 30 melon farmers and was conducted through field observations, interviews, questionnaire distribution, extension activities, and demonstrations of bokashi production and application. Data were analyzed descriptively and quantitatively to describe regional conditions, participant characteristics, acceptance levels, and the application of the innovation by farmers. The results showed that farmers’ acceptance of the extension program reached 81.38%, categorized as very favorable. A total of 12 farmers (40%) independently produced bokashi, while 15 farmers (50%) applied bokashi in melon cultivation. The constraints to independent bokashi production included limited time, farming workload, farmers’ unfamiliarity with processing organic waste, and the habitual use of inorganic fertilizers. These findings indicate that the extension activity encouraged initial acceptance and application of water hyacinth as bokashi; however, independent production still requires continuous assistance.

Extension Program Design for the Innovation of Plastic Mulch Use to Control Weeds in Upland Rice in Siempat Rube District, Pakpak Bharat Regency Solin, Bakti Dameria; Febrimeli, Dwi; Winarno, Retmono Agung
Journal of Multidisciplinary Science: MIKAILALSYS Vol 4 No 3 (2026): Journal of Multidisciplinary Science: MIKAILALSYS
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/mikailalsys.v4i3.12159

Upland rice production in Siempat Rube District is constrained by weed growth, highlighting the need for appropriate innovations to reduce weed-management burdens and support crop productivity. This study aims to evaluate the effectiveness of an agricultural extension design promoting the use of plastic mulch for weed control in upland rice cultivation. The study was conducted in Siempat Rube District from January to March 2026 using a descriptive survey approach involving 39 rice farmers as respondents. Data were collected through observations, interviews, and questionnaires and analyzed using percentage analysis and a Likert scale. The findings show that farmer adoption of plastic mulch increased from no adopters to 20 farmers, representing 51.28% of the respondents. The extension design, encompassing instructional materials, methods, media, frequency, location, timing, and costs, achieved an acceptance score of 81.42%, corresponding to the strongly agree category. These findings indicate that the extension design was positively received by farmers and supported the adoption of plastic mulch as an innovation for weed control in upland rice cultivation. The study concludes that a systematically designed extension program can facilitate farmer adoption of plastic mulch technology. The findings provide practical implications for agricultural extension services, particularly by emphasizing the importance of continued technical assistance and field demonstrations to strengthen the implementation and adoption of plastic mulch for weed management.

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