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Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)
Published by Universitas Lampung
ISSN : 2302 559X     EISSN : 2549 0818     DOI : -
Core Subject : Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Engineering
Jurnal Teknik Pertanian Lampung or Journal of Agricultural Engineering (JTEP-L) is a peer-reviewed open-access journal. The journal invites scientists and engineers throughout the world to exchange and disseminate theoretical and practice-oriented researches in the whole aspect of Agricultural Enginering including but not limited to Agricultural Mechanization, Irrigation, Soil and Water Engineering, Postharvest Technology, Renewable Energy, Farm Structure, and related fields. The first issue was published in October 2012 by Department of Agricultural Engineering, Faculty of Agriculture, University of Lampung. Jurnal Teknik Pertanian Lampung has ISSN number 2302 - 559X for print edition on October 10, 2012 then 2549 - 0818 for online edition on January 10, 2017. Jurnal Teknik Pertanian Lampung is issued periodically four times a year in March, June, September, and December. Jurnal Teknik Pertanian Lampung has been indexed by Google Scholar, Crossref, Directory Open Access Journals (DOAJ), and CABI. Since Volume 5 Issue 1 (2016) Jurnal Teknik Pertanian Lampung has been accredited as SINTA 3 by Directorate General of Higher Education (DIKTI). Starting Volume 10 Issue 3 (2021) the journal received accreditation SINTA 2.
Arjuna Subject : -
Articles 24 Documents
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Search results for , issue "Vol 12, No 4 (2023): December 2023" : 24 Documents clear
Determination of Suitable Plant Types in an Irrigation Command Area Using IWQI Method Sri Wahyuningsih; Elida Novita; Reo Nurdiansyah Ramadhan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.795-806

Abstract

Irrigation water quality of has an essential roles in growing crops by farmers. Agricultural crops can produce superior products if they have good irrigation water quality. Irrigation water quality index (IWQI) is a method to evaluate the quality of irrigation water. This research aim at applying the IWQI in the Sukorejo Secondary Channal to determine suitable plants within the command area with the criteria of tolerance relative to salt. The research was performed by measuring some parameters including the content of Na+ (sodium), Cl– (chloride), HCO3– (bicarbonate), electrical conductivity (EC), and sodium adsorption ratio (SAR), as well as soil permeability. Results of this study showed that the Sukorejo Secondary Channal delivering irrigation water IWQI value of 61.54. Measurements also revealed the soil has a moderate to high level of permeability. Recommendation that can be given is the use plants with moderate amounts of water consumption with moderate tolerance to salt levels. Recommended plants according to IWQI value include corn, soybean, wheat, rice, tomato, cabbage, tobacco, mustard greens, celery, lettuce, papaya, pineapple, pumpkin, peanuts, cucumber, broccoli, tomato, cabbage, eggplant, spinach, potato, watermelon, radish. Keywords: Alkalinity, IWQI, Plants, Salinity, Water quality
Application of Pb-Resistant Bacteria to Reduce Pb-Accumulation in Brassica sp. on Pb-Contaminated Soil Beauty Laras Setia Pertiwi; Yulia Nuraini; Sugeng Prijono; Reni Ustiatik
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.863-874

Abstract

Brassica sp. is a horticultural crop with high demand for consumption. To meet the demand, farmers apply intensive farming to increase yields and prevent plant pests and diseases that cause yield loss. Agrochemical applications in the form of inorganic fertilizers and pesticides contribute to lead (Pb) contamination in agricultural soils and increase lead (Pb) content in the cultivated plants. Nowadays, using bacteria for remediation (bioremediation) is environmentally friendly and effective in cleaning pollutants by converting organic Pb into inorganic Pb which is less toxic. This study aims to explore Pb-resistant bacteria that can reduce Pb-accumulation on food crops such as Brassica sp. grown in Pb-contaminated soil. This study isolated 15 isolates that survived on nutrient agar containing 1,000 mg/L Pb(NO3)2. The study showed 2 potential Pb-resistant bacteria that reduced Pb accumulation in Brassica sp. up to 30.5%. The bacteria are gram-positive bacilli and non-human pathogens (PT-3 and PT-5). DNA barcode identification results showed the isolates identified as Bacillus altitudinis (PT-3) and Bacillus wiedmannii (PT-5). Aplication of the bacteria increases the shoot length and fresh weight of Brassica sp. Application of the bacteria improves food crops quality by reducing heavy metals accumulation, such as Pb. Thus, the bacteria are potential as biofertilizers for reducing agrochemicals use in intensive agriculture areas and preventing environmental destruction and food contamination. Keywords:   Bioremediation, Brassica sp., Inorganic Fertilizers, Lead-Resistant Bacteria, Pesticides. 
Land Use and Land Cover (LULC) Change in Eastern Areas of East Java From 1972 To 2021: Learning From Landsat Image Marga Mandala; Indarto Indarto; Ach. Fauzan Mas'udi; Akhmad Andi Saputra
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.1022-1035

Abstract

Urban development, population growth, high traffic jams, and intensive disaster events are indicators of changing the landscape of the eastern area of East Java. Investigating these changes is vital for planning and environmental protection in the future. This study examines changes in land use and land cover (LULC) during the past 50 years in the eastern part of East Java from 1972 to 2021. The changes are examined by contrasting four maps derived from Landsat images (1972, 1997, 2013, and 2021). The following are the main study procedures: (1) data inventory, (2) field survey, (3) image processing and classification, and (4) interpretation of LULC changes. With Google Earth Engine, all photos are downloaded (GEE). Landsat image classification was completed using the maximum likelihood algorithm with an overall Kappa accuracy of>85%. Eight (8) major classifications are therefore produced by the classification: (1) the pavement or urban area (PUA); (2) heterogeneous agricultural land (HAL); (3) bare soil (BS); (4) paddy field (PF); (5) open water body (OWB); (6) vegetation/plantation (VG); (7) shrubland (SL); and (8) wetlands (WL). In the areas with rapid development, the LULC change is more pronounced, i.e., Pasuruan, Jember, and Banyuwangi Regencies. LULC change in and near mid-regency and the rural regions comes next. Over the past fifty years, regional growth has resulted in increases in PUA (+4.4 percent), PF (+12.2 percent), and VG (+17.9 percent). On the other hand, the development has decreased SL, BS, and HAL by 5.8 and 15.9 percent, respectively (-13.1 percent ). LULC alterations for human activities have profoundly altered the natural landscape. Keywords:  East Java, GEE, Image Processing, Landsat, LULC
The Effect of Yeast Dose and Fermentation Time on the Quality of Virgin Coconut Oil (VCO) Delfrida Karlani Nahak; MM Endah Mulat Satmalawati; Hyldegardis Naisali
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.988-996

Abstract

Coconut are tropical plants and can be easily found in Indonesia. Virgin Coconut Oil (VCO) is one of the products produced from coconut beans. VCO is processed using fermentation techniques to maintain its quality and purity. This study aimed to determine the effect of yeast dosage and fermentation time on VCO yield, water content, and free fatty acids. Yeast dosage and fermentation time were the two treatment factors used in this study with a factorial Completely Randomized Design (CRD). To assess the impact of each treatment, the data was analyzed by using ANOVA with the significance level of 95%, followed using the Zeleny method analysis to find the best treatment condition. The oil found in this study was in compliance with SNI 7381:2008 and Asian Pacific Coconut Community (APCC) standards. The effect of yeast dose and fermentation period on oil yield, water content, and free fatty acid content in VCO was significant at α = 0.05. The results of the analysis showed that the best treatment condition was found at a yeast rate of 10 g and a fermentation time of 20 h. This treatment resulted about 15.67% oil yield with 0.2% moisture content and 0.2% free fatty acids.  Keywords: Virgin coconut oil; yeast; time; yield; free fatty acid
Design Development and Performance Evaluation of Two-Row Corn Seed Planter Ansar Ansar; Nazaruddin Nazaruddin; Atri Dewi Azis
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.979-987

Abstract

One of the main requirements for small-scale cultivators is that they can be used in small plots of land and have simple design and technology. However, many planting tools on the market today are not suitable for narrow land conditions. Therefore, this study aims to design and develop a corn seed planter that can be operated in narrow areas and can improve seed planting efficiency and accurate seed placement. The research parameters observed were the distance between plants, the depth of the planting holes, the number of seeds per planting hole, and the efficiency of using the tool. The results of the research show that the planting tools that have been designed and developed are very easy and practical to operate by farmers on narrow land. The distance between plants varies between 21.3 – 24.2 cm. The depth of the planting hole ranges from 5.4 – 7.1 cm. The distribution of the number of holes filled with 0 seeds was 3.00%, filled with 1 seed was 90.38%, and filled with 2 seeds was 6.62%. Planter efficiency data is 85.61%. This data shows that this cultivator meets the minimum standards for the manually operated cultivator category. Keywords: Distance between seeds, Efficiency, Empty hole, Land productivity, Planting hole. 
Physicochemical Quality of Oyster Mushroom for Functional Food Helmi Haris; Ridwan Rachmat; Tiana Fitrilia; Ahmad Syarbaini; Amar Ma’ruf; Dede Djuanda; Dian Histifarina; Bagem Sembiring
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.818-830

Abstract

This article presents studies on the physicochemical quality of oyster mushrooms grown within a housing and controlled by the Internet of Things (IoT). The goals of this study were to assess (1) the impact of indoor air quality on the growth and quality of mushrooms and (2) the antioxidant content of oyster mushrooms. In this study, the air temperature and humidity of oyster mushroom house per unit time was recorded and controlled automatically by an IoT system. Additionally, their physicochemical and microbiological quality were evaluated using physico-analytical instruments, and the potency of their ergothioneine (EGT) content was investigated using the HPLC method. The temperature of the air inside was between 29 and 35 °C, and the relative humidity was between 60% and 90%. The average texture of mushroom is soft.  The average length, width, and height of the fresh mushroom were 41.5 mm, 60.0 mm, and 29.5 mm, respectively. The microbiological test confirmed that there was no salmonella infection in the collected mushrooms. The button-stage mushrooms have less total fungus than the bloom-stage mushrooms. The extraction standard method employs an EGT content of 0.674 mg/g as determined by chromatography data analysis. The oyster mushrooms can be consumed as a healthy meal, and the study of EGT showed also very prospective as one of immunotherapeutic food. Keywords: Ergothioneine, Fibre-reinforced plastic house, Internet of think, Oyster mushrooms
Engineering of Information Monitoring System Sensor Reading Data Based on Smart Wireless using NVDIA Jetson Nano and Arduino Mega on Agricultural Spraying Machines Ridwan Siskandar; Tineke Mandang; Wawan Hermawan; Irzaman Irzaman
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.921-936

Abstract

The focus of the research is monitoring data from sensors on the agricultural sprayer. The monitoring system support by some sensors in camera, tank capacity, boom sprayer balance and battery capacity. The research method was carried out using the waterfall model, because according to the needs that require a sequential flow in the process. This model is divided into four parts, namely analysis (to identify problems and needs), design (plans to solve problems to be solved), implementation (implementation of plans that have been made), and testing. Engineering of Information Monitoring System Sensor Reading Data Based on Smart Wireless using NVDIA Jetson Nano and Arduino Uno on Agricultural Spraying Machines. The test results for the CNN model for the detection of the “Jajar Legowo” object were carried out to obtain 90% accuracy, 82.35% precision and 100% recall. Tests an accuracy value cappacity tank of 100%. Testing the balance sensor, if rotates clockwise on the Y axis the output voltage decreases, and vice versa. However, if the sensor at rest, the output voltage will same as the offset value. Besides that, testing the optimum PWM value fuzzy approach is carried out with aim that the droplets hit the target zone when sprayer is working. The result are Arduino IDE and Matlab produce same value, which is 42 for the optimum PWM value. Testing the battery capacity sensor get accuracy value of 100% by difference in the voltage increase of 0.5 volts is equivalent to increase of 10%. All information read by the sensors is displayed on the LCD using WMS-2000 (smart wireless). Keyword: Fuzzy, Microcontroller, Monitoring, Sensor data, Smart wireless
Addition of Essential Oil Bioadditives as a Mixture of Biodiesel B35 Fuel on the Performance of Reducing Water content and Particulate Content Anggi Firdaus Agumsah; Meika Syahbana Rusli; Dwi Setyaningsih; Egi Agustian; Ade Kurniawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.807-817

Abstract

The use of biodiesel is still experiencing problems due to large amount of water content which produce from the transesterification process, making it has unstable oxidizing properties. The large amount of water content in biodiesel causes the emergence of microorganisms which becoming sludge in the engine room, and can clog the fuel filter. In this study, we propose the application of oxygenate bio-additives to minimize water and particulate content by using turpentine essential oils, clove terpenes, rhodinol, camphor oil, and synthetic additive 2EHN. Based on the study's results, the water content of biodiesel B35 with the AC bio-additive mixture experienced the highest decrease in water content, which was 18% or 287.2 ppm and performs well in reducing particulate levels of 4, 6, and 14 microns. The completely randomized design (CRD) test results for non-factorial moisture content on days 0, 3, 5, 7, and 14 and particulate matter 4, 6, and 14 microns showed no significant difference because each P value was obtained greater than α (0.05). Keywords:   Bio-Additives, Biodiesel, Oxidation, Oxygenate, Particulates.
Use of Portable Fluorescence Spectroscopy and SIMCA Method to Test The Authenticity of Apis mellifera Honey From Coffee Flower Nectar Mixed With Two Artificial Sweeteners Sapto Kuncoro; Diding Suhandy; Warji Warji; Dicky Ervandi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.875-885

Abstract

Honey with coffee flowers nectar is native honey formed from flower nectar. In this investigation, corn syrup and rice syrup, two artificial sweeteners, were utilized as an adulterant. Portable fluorescence spectroscopy and the SIMCA method are the tools and techniques employed. There were up to 20 samples of pure Apis mellifera honey and up to 120 samples of mixed honey (MC), each used twice. Data on the emission spectra, which are excited at a wavelength of 365 nm, were measured over the wavelength range of 300-800 nm. To improve accuracy, sensitivity, and specificity, the original spectral data was altered using a number of pre-treatments. Pretreatment with the original data with smoothing moving average may accurately identify samples and provides 100% accuracy, sensitivity, and specificity. One of the steps of the SIMCA approach, the cumulative PC, has a value of 92%, which indicates that it well explains the variation of the data. The x-loading plot's values are near the peak of the waves at 378 and 460 nm, indicating the existence of phenolic and flavonoid chemicals at those wavelengths. Keywords:   Apis mellifera honey, Corn syrup, Rice syrup, Portable Spectroscopy, SIMCA.
Evaluation of an Urban Drainage System in a Big City Wisnu Prayogo; Sarra Rahmadani; Harry Wibowo; Laili Fitria; I Wayan Koko Suryawan; Nahesson H. Panjaitan; Putri Lynna A. Luthan; Novi Fitria
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.1036-1052

Abstract

Population growth has led to increased runoff and wastewater flowing into drainage channels. This study, therefore, aims to evaluate the drainage capacity of selected channels in Medan City and whether they can still serve the community in the next 10, 20 and 30 years. The observed channel starts from Taduan Street No. 1 to Taduan Street No. 153, with a length of 1,000 m. This evaluation considers population growth, the volume of domestic wastewater, the volume of runoff, the generation of sediment in channels, and evapotranspiration as part of the water cycle. Monthly maximum rainfall data from 2012-2021 from the BMKG Sampali Medan and population data along Taduan are used in the review in this article. Based on the investigation, it is known that the volume of drainage on Taduan Street is no longer able to serve the community even for 2032. It is necessary to review and redesign the dimensions to ensure that wastewater from household activities and runoff does not have a negative impact, especially during the rainy season. With as many as 48 injection wells and the Watershed expansion, it is expected to reduce inundation. Keywords:   Drainage channel, Domestic wastewater, Evaluation,  Medan, Rainwater

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