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All Journal Jurnal Keteknikan Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Ilmiah Membangun Desa dan Pertanian Mattawang: Jurnal Pengabdian Masyarakat Tropical Plantation Journal
Hermantoro, Hermantoro
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Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Education Engineering Public Health Social Sciences

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Analisis Tata Niaga Produk Agroindustri Gula Semut di Kabupaten Kulon Progo Hertini, Etty Sri; Hermantoro, Hermantoro; Manumono, Danang
Jurnal Ilmiah Membangun Desa dan Pertanian Vol 6, No 2 (2021)
Publisher : Department of Agribusiness Halu Oleo University Kendari Southeast Sulawesi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37149/jimdp.v6i2.17887

Abstract

Brown sugar is one of the palm derivative products that have high economic value and has very good prospects for development. Commerce is a trading activity that combines the flow of goods and services from the level of production to consumption. This study aims to determine the share margin received by each channel of the brown sugar commerce at Kulon Progo Regency. This research, which was conducted in May-July 2020, used a descriptive method. The method of determining the research location used the purposive sampling method. Determination of the number of informants is determined by the snowball method with a total of 60 informants. Methods of data analysis using cost analysis tools and marketing margins. The results showed that the marketing margin obtained at the farm level was Rp1.706/kg while the collectors were Rp4.375/kg. Product variations being developed are printed coconut sugar, wet neutral brown sugar, dry neutral brown sugar, and flavor variants.
Effectiveness of Organic Fertilizer Application in Increasing Organic Coffee (Coffea sp) Productivity and Coffee Bean Fermentation Results in Pentingsari Village: Efektivitas Aplikasi Pupuk Organik dalam Peningkatan Produktivitas Kopi (Coffea sp) Organik dan Hasil Fermentasi Biji Kopi di Desa Pentingsari Purboseno, Sentot; Hermantoro, Hermantoro; Kadarwati, Kadarwati; Suprianto, Gani
Mattawang: Jurnal Pengabdian Masyarakat Vol. 5 No. 4 (2024)
Publisher : Yayasan Ahmar Cendekia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35877/454RI.mattawang3198

Abstract

This Community Service Program (PKM) aims to increase the productivity of organic robusta coffee and the quality of fermented coffee beans through the application of organic fertilizers and sustainable cultivation practices in Pentingsari Village, Cangkringan District, Sleman Regency, Special Region of Yogyakarta. Pentingsari Village is located on the slopes of Mount Merapi with fertile volcanic soil, making it a potential location for the development of organic coffee farming. Challenges faced by farmers include the use of inorganic fertilizers that damage soil quality and lack of knowledge about organic farming practices. Through a series of counseling, training, and field practice, this program provides education and skills to farmers to adopt better organic farming practices. The results of the activities show an increase in farmers' knowledge about organic coffee cultivation techniques, improvements in coffee bean fermentation methods, and increased productivity and quality of robusta coffee. The implementation of organic fertilizers in agricultural land management has a positive impact on soil fertility and the sustainability of coffee production
Enhancing Reliability and Maintenance Efficiency of Screw Press Machines in Palm Fruitlet Processing Mills: A Failure Mode and Effect Analysis (FEMA) Approach Aditya, Abbiyu Bima; Nugroho, Bagus; Hermantoro, Hermantoro; Renjani, Rengga Arnalis
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.v4i2.56

Abstract

This study analyzed the reliability and failure risks of screw press machine components in a palm oil loose fruit mill using the Failure Mode and Effect Analysis (FMEA) method. The objective was to identify critical components, evaluate their Risk Priority Number (RPN), and propose appropriate maintenance strategies. Data were collected through questionnaires, field observations, and maintenance records. The RPN was calculated by multiplying severity, occurrence, and detection scores, while reliability was assessed using the Mean Time Between Failures (MTBF) formula. The worm screw showed the highest RPN at 252, indicating a critical risk level, while the press cage followed with an RPN of 210. MTBF analysis revealed that the worm screw required replacement every 313.5 hours, whereas components like the V-belt and electro motor had longer MTBF intervals of up to 3135 hours. The findings suggested that targeted maintenance on high-risk components could reduce downtime and enhance production efficiency. This study concluded that prioritizing preventive maintenance based on RPN and MTBF results was crucial for maintaining the operational performance of screw press machines in palm oil processing.
Penyimpangan Iklim ENSO dan IOD di Kalimantan Tengah Serta Kaitannya dengan Produksi Kelapa Sawit Fadhil, Dary As’ad; Wirianata, Herry; Hermantoro, Hermantoro
Jurnal Keteknikan Pertanian Vol. 12 No. 1 (2024): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.012.1.93-101

Abstract

Kelapa sawit merupakan tanaman perkebunan yang membutuhkan curah hujan yang merata sepanjang tahun. Curah hujan diIndonesia memiliki 3 pola yaitu pola monsoonal, equatorial dan lokal. PT. Harapan Hibrida Kalbar Sungai Bila Estate merupakan wilayah kajian penelitian ini memiliki pola curah hujan equatorial. Curah hujan dapat menyimpang dari pola kondisi iklim pada umumnya karena adanya variabilitas iklim El Nino Southern Oscillation dan Indian Ocean Dipole. Hasil koefisien korelasi pearson antara curah hujan musim Juni Juli Agustus dan September Oktober November dengan indeks El Nino Southern Oscillation sebesar -0,78** dan -0,64*. El Nino Southern Oscillation Memiliki hubungan yang kuat dan terbalik dengan curah hujan diwilayah kajian saat musim kemarau dengan nilai signifikan pada selang kepercayaan 0,01 ( Juni, Juli, Agustus) dan 0,05 (September, Oktober, November) Hasil koefisien korelasi pearson antara curah hujan musim Juni Juli Agustus dan September Oktober November dengan indeks Indian Ocean Dipole sebesar -0,4 dan -0,5. Pengaruh El Nino Southern Oscillation lebih kuat dibandingkan dengan Indian Ocean Dipole di wilayah kajian. Fase El Nino (lanina) menyebabkan curah hujan diwilayah kajian menjadi lebih rendah (tinggi) dari kondisi normal, sehingga terjadi kemarau Panjang (Kemarau basah). Produksi kelapa sawit pada jenis tanah Sandy Loam lebih fluktuatif dan lebih rentan saat terjadi kemarau panjang dibandingkan jenis tanah clay. Produksi kelapa sawit lebih dipengaruhi oleh jumlah hari hujan dibandingkan jumlah akumulasi curah hujan dalam setahun.
Prediction of Block Production in Oil Palm Plantation Based on Canopy Cover Area and Vegetation Index Using Multispectral Aerial Photographs Sagoro, Tri Haryo; Krisdiarto, Andreas Wahyu; Hermantoro, Hermantoro
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1216-1225

Abstract

This study aims to develop an empirical estimation model of oil palm production through the canopy cover area approach and oil palm vegetation index with multispectral camera technology. The oil palm production estimation method was carried out by comparing the NDVI and NDRE index transformation algorithms. The basis for estimation an area of ± 0.3 ha. The results showed that there is relatively strong relationship between canopy cover area and FFB production (kg) with a coefficient of determination R² = 0.573. The results also revealed that NDVI value and the number of FFB have a fairly strong relationship with R² of 0.488. The NDRE value correlated to the number of FFB at a strong relationship with R² of 0.605. 4) the results of the analysis between NDVI Value and FFB Production (kg) have a strong relationship (r = 0.704) with a coefficient of determination of R² = 0.496; 5) the results of the analysis between NDRE Value and FFB Production (kg) have a strong relationship (r = 0.797) with a coefficient of determination of R² = 0.635; 6) The NDRE value is the independent variable that provides the best response, both to the Number of FFB and FFB Production (kg); 7) the best regression equation obtained for FFB production (kg) is Y(FFB Production (kg)) = 1153.8– (3621.9*NDRE); and 8) the best regression equation obtained for the number of FFB is Y(Number of FFB) = 113.98 – (379.53*NDRE). Keywords: Canopy cover area, Multispectral camera, NDRE, NDVI, Oil palm production.
Co-Authors Aditya, Abbiyu Bima Danang Manumono Fadhil, Dary As’ad Hertini, Etty Sri kadarwati, kadarwati Krisdiarto, Andreas Wahyu Nugroho, Bagus Renjani, Rengga Arnalis Sagoro, Tri Haryo Sentot Purboseno Suprianto, Gani Wirianata, Herry