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Department of Agricultural and Biological Engineering, Faculty of Agriculture Lampung University Jl. Soemantri Brojonegoro No. 1, Kedaton, Bandar Lampung, Lampung. 35145
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Jurnal Agricultural Biosystem Engineering
Published by Universitas Lampung
ISSN : -     EISSN : 28304403     DOI : -
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology
This journal focuses on agriculture, biosystems and agricultural techniques. Covering power and agricultural machinery, agricultural cultivation, renewable energy, bioprocessing of agricultural products, environmental civil engineering, agricultural irrigation, robotics, automatic control in agriculture, design of agricultural machinery and tools, ergonomics in agriculture, and nanotechnology.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol. 4 No. 2 (2025): June 2025" : 10 Documents clear
Uji Performansi Mesin Penggiling Tipe Disc Mill untuk Penepungan Porang Sutejo, Agus; Putra, Rafa Andika; Ramdani, Gilang; Putri, Annastasha Diandra
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.10905

Abstract

The porang plant is an abundant commodity that has a high chance of becoming an export commodity in the form of fresh tubers, dried chips, and flour. This creates an impetus for processing businesses so a porang tuber flouring machine with good flouring performance is needed. The disc mill type pressing machine is one of the pressing machines that can process porang up to 60- 80 mesh size. This study aimed to analyze and test the performance of the disc mill machine on the results of milling porang. This research was conducted at PT. Daud Teknik Maju Pratama from January to May 2024 using 1 kilogram of porang measuring 1 cm for each treatment. Tests were carried out using three rotational speeds on the disc mill machine (2160 rpm, 2750 rpm, and 3340 rpm). Each treatment was repeated three times. Tests were conducted to obtain data on milling capacity, yield, shrinkage loss, engine power, and milling quality. The performance results showed that the milling capacity of the disc mill machine ranged from 5.96- 9.89 kg/hour. The milling yield value in the 3340 rpm rotational speed treatment was obtained the highest result (91.37%) and the lowest shrinkage (8.63%). The best milling quality results were also obtained in the 3340 rpm rotary speed treatment with the highest value of fine particles 28.54% passing the 80 mesh sieve and the highest percentage reduction in water content of 4.17%. The electric motor power required for disc mill machines with rotating speeds of 2160 rpm, 2750 rpm, and 3340 rpm were 1.0961 kW, 1.3486 kW, and 1.5456 kW, respectively. Keywords:  Disc Mill, Flouring, Performance Test, Porang, Porang Flour. 
Karakteristik Alat Pemanen Madu Tipe Isap dengan Variasi Tekanan Vakum Sutejo, Agus; Al Khalidhi, M. Alvhandi; Ramdani, Gilang; Putri, Annastasha Diandra
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.10906

Abstract

Honey harvesting is one of the main activities in beekeeping. The honey harvesting process plays a crucial role in ensuring the quality and quantity of the final product. This study aims to analyze the characteristics of suction-type honey harvesting with variations in vacuum pressure to determine the impact of pressure factors on the effectiveness of hive repair, the quality of the honey produced, and the speed of harvesting. The study was conducted from July to September 2024 at PT Daud Teknik Maju Pratama, Agribusiness and Technology Park IPB, and The Animal House, using two different pressures: -23.37 cmHg and -21.34 cmHg. Vacuum pressure honey harvesting proved to be effective as it could be performed quickly without damaging the honeycomb. On the other hand, the pressing method was less effective because it could damage the hive, resulting in a longer time required for bees to repair it. Harvesting 300 ml of honey using pressures of -9.2 cmHg and -8.4 cmHg took approximately 5.4 minutes and 6.72 minutes, respectively. The honey produced showed varying viscosity values, such as honey from Trigona laeviceps in hive 1 with a viscosity of 122.395 mPa.s, hive 5 with a viscosity of 99.645 mPa.s, hive 10 with a viscosity of 121.117 mPa.s, and honey from Trigona itama with a viscosity of 79.346 mPa.s. Keywords: Effectiveness, Honey, Pressure Variation, Vacuum Pump, Viscosity.
Uji Tanam Pot Biodegradable Berbahan Limbah Biomassa Pelepah Pisang Kepok (Musa paradisiaca L.) dan Jerami Padi (Oryza sativa L.) untuk Tanaman Cabai Rawit (Capsicum frutescens L.) pada Fase Vegetatif Agustin, Churia Camelia; Rahmawati, Winda; Amien, Elhamida Rezkia; Suharyatun, Siti
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11049

Abstract

Biodegradable pots made from biomass waste offer an environmentally friendly alternative to replace plastic polybags in plant cultivation. This study aimed to evaluate the effect of different raw materials used in making biodegradable pots on the vegetative growth of chili pepper plants. Two treatments were applied: pots made from Kepok banana stem fibers (B1) and pots made from rice straw (B2), each with four replications. The observed parameters included root length, plant height, stem diameter, and number of leaves over 27 days after planting. The results showed that pots made from rice straw produced better growth in all parameters compared to those made from banana stem fibers. The longest root length was found in treatment B2U1 (19 cm), the tallest plants in B2U2 (23.6 cm), and the largest stem diameter also in B2U2 (0.37 cm). These differences are attributed to the physical characteristics of the raw materials: rice straw pots have lower density and a porous structure that facilitates root penetration and growth, while banana stem pots have higher density and fiber mass, resulting in a denser structure that restricts root development. Therefore, it can be concluded that biodegradable pots made from rice straw are more effective in supporting the vegetative growth of chili pepper plants than those made from banana stem fibers. Keywords: Banana Stem, Biodegradable Pot, Densities, Kepok Banana Stem, Rice Straw, Vegetative Phase.
Pengaruh Campuran Pupuk Organik Cair Limbah Buah dengan Nutrisi AB Mix terhadap Pertumbuhan Bayam Merah (Alternantera Amoena Voss) pada Sistem Hidroponik Static Aerated Technique Simamora, Kristian Gerenaldo; Tusi, Ahmad; Amien, Elhamida Rezkia; Triyono, Sugeng
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11050

Abstract

The high volume of fruit waste in Lampung and Indonesia in general requires environmentally friendly waste management solutions. This study aims to utilize such waste for liquid organic fertilizer by evaluating the effects of mixing fruit waste-based liquid organic fertilizer (LOF) with AB Mix nutrients on the growth of red spinach (Alternanthera amoena Voss) in a Static Aerated Technique (SAT) hydroponic system. The research employed a Completely Randomized Design (CRD) with a single factor, consisting of five treatment combinations of LOF and AB Mix concentrations (0–100%) and three replications. Observed parameters included plant height, number of leaves, plant weight, root length and weight, stem diameter, and water use efficiency. The results showed that the use of pure AB Mix (100%) produced the best growth outcomes compared to the mixed or pure LOF treatments. The lower growth and productivity in the LOF treatments were attributed to the low levels of macronutrients (N, P, K) in the produced LOF, as well as the presence of sediment that hindered nutrient absorption and the upward flow of nutrient solution from the reservoir to the plant root zone. Nevertheless, the combination of LOF and AB Mix still shows potential as an alternative nutrient source for hydroponic cultivation if optimally formulated.  Keywords:  AB Mix, Fruit Waste, Liquid Organic Fertilizer, Red Spinach, SAT Hydroponics,
Komparasi Kinerja Irigasi Tetes dan Penyiraman pada Pembibitan Kopi Arabika Pramuhadi, Gatot; Maulana, Sidik
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11103

Abstract

Drip irrigation is one of the most widely used irrigation methods in agriculture because it delivers water directly to the plant's root zone or soil surface. This study aimed to analyze the performance of drip irrigation and compare it with conventional watering using a watering can. Twelve treatments were applied, combining four watering methods (drip irrigation with water, drip irrigation with water and nutrients, watering using a can with water, and watering using a can with water and nutrients) and three types of growing media (soil; a mixture of soil and rice husks; and a mixture of soil, husks, and manure). The results showed that the best coffee seedling growth was achieved through the drip irrigation treatment with water and nutrients on the soil, husk, and manure mixture (A2T3). This treatment resulted in a final plant height of 13.1 cm, stem diameter of 2.94 mm, 12 leaves, and a sturdiness index of 5.50. The drip irrigation system operated at a water discharge rate of 0.534 liters per minute with a water use efficiency of 75.15%. These results indicated that combining a complete growing medium with efficient irrigation and nutrient supply significantly enhanced seedling performance. In terms of cost, seedling production under drip irrigation ranged from IDR 6,450.06 to IDR 7,119.14 per seedling, while production using a watering can ranged from IDR 3,873.13 to IDR 4,645.20 per seedling. Although drip irrigation incurred higher costs, it produced higher-quality seedlings. Therefore, the use of drip irrigation with nutrients and organic-rich media is recommended as an effective and economically viable method for coffee seedling production. Keywords: Coffee Nursery, Cost Analysis, Drip Irrigation, Growing Media, Nutrients.
Kajian Analisis Risiko Keselamatan Kerja di Workshop Traktor Pramuhadi, Gatot; Herodian, Sam; Anhar, Fahri
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11104

Abstract

Work safety has the main goal of protecting workers from risks associated with their work in the workshop area.  The purpose of this study is to identify, analyze, and control risks, as well as the dangers of work safety in one of the large workshops of PT United Tractors Jakarta Branch in the period June 2023 to August 2023. The results show that based on the results of the identification of 233 potential risks, it has been determined that ergonomic hazards emerged as a top priority, especially the risk of injury to fingers and hands. Initial risk assessment shows that almost all dangers are classified as moderate and unacceptable risk.  After the application of control obtained a relative risk value of 0.0386 and relative risk reduction of 96.14%.  The risk control approach shows that there are 10 preventive actions, 7 corrective actions, 8 detective actions, and 7 directive actions.  Recommendations for controlling ergonomic hazards are 3 preventive actions, 3 corrective actions, 3 detective actions, and 2 directive actions at the risk of finger injury. Keywords:  The Danger of Ergonomics, Relative Risk, Relative Risk Reduction, Risk Control Techniques.
Analisis Laju Perubahan Alih Fungsi Lahan Sawah di Wilayah Kabupaten Pringsewu Nuraini, Intan; Ridwan, Ridwan; Wisnu, Febryan Kusuma; Asmara, Sandi
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11105

Abstract

Pringsewu Regency experienced land conversion to increasing land needs. Some of the impacts that can arise as a result of this land conversion include reduced agricultural land, threatened ecosystem balance, agricultural facilities and infrastructure becoming unused, higher urbanization rates, and decreased food production. To study and see how fast the function of rice fields in Pringsewu Regency is changing, a study was carried out regarding the rate of change in the function of rice fields in Pringsewu Regency by utilizing remote sensing techniques with a geographic information system.The results of the research show that there is a trend of decreasing vegetation density levels with the highest decrease in Sukorejo Village (53.37%), a trend of increasing building density levels with the highest increase in Sukorejo Village (45.87%), and a trend of increasing land wetness levels with the highest increase in Bulurejo Village (85.52%) between 2008 - 2022 and obtained a mathematical model Y = 10.7326 - 0.5190 X1 - 0.4007 to predict the rate of change in the conversion of rice fields in the Pringsewu Regency area. Keywords:  Geographic Information System, Land conversion, NDBI, NDVI, NDWI.
Analisis Resiko Ergonomi Pengolahan Tanah Menggunakan Traktor Tangan dengan Nordic Body Map (NBM) Anggraini, Nurvita; Suharyatun, Siti; Rahmawati, Winda; Warji, Warji
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11107

Abstract

Continuous tillage using hand tractors requires high physical strength and involves non-ergonomic body postures. Work involving heavy physical activity, especially with improper working postures can cause musculoskeletal injuries or musculoskeletal disorders/ MSDs). This study aims to identify the level of musculoskeletal disorders (MSDs) of hand tractor operators in tillage using the Nordic Body Map (NBM) method. The study was conducted in Banjar Agung Village, East Lampung, involving operators aged 30–40 years and operators aged 40–50 years. Data were obtained through interviews to fill out the NBM questionnaire. The results of the NBM analysis showed that tillage activities using two-wheeled tractors by operators aged 30–40 years did not require immediate treatment with a Likert scale of 1 (light risk level) and that by operators aged 40–50 years required immediate treatment with a Likert scale of 2 (high risk level). Keywords:  Hand Tractor, Nordic Body Map (NBM), Musculoskeletal Disorders (Msds), Soil Tillage.
Pengaruh Suhu dan Ketebalan Irisan terhadap Kualitas Keripik Ubi Jalar Oranye (Ipomoea batatas L.) Menggunakan Penggorengan Vakum Novita, Dwi Dian; Aliftama, Althoriq Rizky; Asmara, Sandi; Kuncoro, Sapto
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11108

Abstract

Processing orange sweet potato (Ipomoea batatas L.)  into chips has the potential to increase the economic value of fresh products.  The aim of this research was to study the effect of frying temperature and slice thickness on the quality parameters of orange sweet potato chips and determine the best treatment.  The test was carried out by adjusting the frying temperature at three levels (70 °C, 80 °C, and 90 °C) and the slice thickness at three levels (1 cm, 1.5 cm, and 2 cm).  The research results showed that the temperature factor had a significant effect on frying time and water content.  Meanwhile, the thickness factor has a significant effect on frying time, yield, water content and crispness.  The best treatment in this study was S2K1 (frying temperature 80 °C, slice thickness 1 cm) which produced orange sweet potato chips with a crispness score of 3.1, water content 2.77%, yield 24.89%, and frying time of 67 minutes. Keywords:  AB Mix, Fruit Waste, Liquid Organic Fertilizer, Red Spinach, SAT Hydroponics,
Pemanfaatan Jerami Padi Sebagai Bahan Campuran Briket Biocoal: Analisis Karakteristik Fisik dan Laju Pembakaran Dibandingkan Briket Konvensional Maktub, Zana Azalia; Tamrin, Tamrin; Lanya, Budianto; Kuncoro, Sapto
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11131

Abstract

This study aims to examine the effect of different percentages of rice straw as a blending material in biocoal briquettes on their physical properties and combustion performance. Four variations of rice straw content were used: 16%, 31.9%, 47.7%, and 63.7%. The results showed that briquette density decreased with higher rice straw content, from 765.13 kg/m³ at 16% to 466.34 kg/m³ at 63.7%. Mechanical strength also varied: tensile stress reached 100,109.99 N/m² at 16% and dropped to 85,480.03 N/m² at 63.7%, while compressive strength ranged from 71,902.06 N/m² to 62,909.68 N/m². Drop tests indicated that higher rice straw content generally reduced impact resistance. Combustion tests revealed that briquettes with higher rice straw content ignited faster and burned more quickly, with a maximum combustion rate of 2.81 g/min for the 63.7% mixture compared to 1.73 g/min for the 16% mixture. However, the calorific value decreased as rice straw percentage increased, from 4,968.53 kcal/kg to 4,011.97 kcal/kg, while moisture content rose from 26.40% to 37.93%. Analysis of variance (ANOVA) for combustion rate confirmed a significant effect of rice straw proportion (F = 10.93; BNT 5% = 0.2998). Compared to conventional briquettes, rice straw biocoal briquettes showed competitive combustion performance but slightly lower mechanical durability. This study demonstrates the potential of utilizing rice straw as an alternative biomass material to produce environmentally friendly biocoal briquettes with acceptable physical properties and enhanced combustion rates. Keywords: Biocoal briquettes, rice straw, density, tensile stress, compressive strength, combustion rate, calorific value.

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