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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 23 Documents
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Search results for , issue "Vol 12, No 1 (2023): March 2023" : 23 Documents clear
Chemical, Microbiological and Sensory Characteristics of Wader Fish (Rasbora argyrotaenia) Joruk During Fermentation Dyah Koesoemawardani; Nida Rianda Nabila; Samsul Rizal; Suharyono AS; Esa Ghanim Fadhallah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.39-57

Abstract

Joruk is a fermented fish product typical from East Ogan Komering Ulu, South Sumatra. This study aims to determine the chemical, microbiological, and sensory properties of the joruk during fermentation, as well as to get the right fermentation time for joruk production. Research was performed by preparing joruk using wader fish. Observations included pH, total lactic acid, water content, and total volatile base (TVB), total molds and yeasts, total microbes, and total lactic acid bacteria (LAB). Furthermore, the best treatment was observed for sensory properties and protein content. Results showed that during fermentation there was a decrease in the pH value, total mold, total microbes, and water content, while the total amount of lactic acid, LAB, and TVB increased. The best treatment was obtained on joruk stored on the 10th day of fermentation with a pH value of 6.33, total lactic acid 9.48%, water content 67.74%, TVB 93.88%, and total LAB, total mold/yeast, and total microbes was respectively 10.46, 7.21, and 12,13 log CFU/g. Sensory properties for raw joruk was brown with 6.2 scale, fishy (6.4), and intact appearance (5.1). Sensory properties for cooked joruk was brown (4.2), fishy (6.7), salty taste (3.1), sour taste (8.4), and incomplete appearance (2.8).Keywords: Characteristic, joruk, wader fish, protein, TVB
The Effect of Soil Preparation Methods on Rain Water Infiltration as The Basis of Irrigation Application for Dry Land Rice Sri Widata; Driska Arnanto; Maria Theresia Darini; Yekti Maryani; Djoko Heru Pamungkas
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.58-69

Abstract

The purpose of this study was to determine the effect of land preparation methods on the soil infiltration which can be used as a basis for designing irrigation for dryland rice cultivation. The study was arranged in a completely randomized design (CRD) with three land preparation treatments, namely T0 (no tillage), T1 (hoeing), and T2 (hoeing plus loosening). Each treatment was carried out with three replication plots. Artificial rain was given with an average intensity of 4.61 mm/h for 120 min. Observations were made on the infiltration thickness and rainwater volume. Results showed that land preparation methods resulted in very significant differences in the cumulative infiltration depth and infiltration rate, where the T2 treatment caused the highest infiltration. During 120 minutes of rain, 331.83 liters of water volume was poured out and resulted in an average infiltration thickness of 7.3 cm for T0 (no tillage), 18.09 cm for T1 (hoeing), and 21,3 cm for T2 (hoeing plus loosening). The results also showed that cumulative infiltration (y) increased with rain water volume (x) that followd a logarithmic curve with an R2 value of more 94-98% for the three land preparation methods with order T2 > T1 > T0.Keywords: Rain, Tillage, Infiltration, Dry land, Rice 
Cover Vol 12 No 1 March 2023 Agus Haryanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Land Cover Changes Based on Landsat Imagery Interpretation Chairiyah Umi Rahayu; Indarto Indarto; Alfian Wiji Pradiksa; Bayu Taruna Wijaya Putra; Rufiani Nadzirah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.1-13

Abstract

This paper presents the use of satellite data (i.e., Landsat-5 & Landsat-8) to interpret the change of land cover from 1997 to 2020. The study area covers the administrative boundary of Lumajang Regency. The land-cover map of the year 1997 derived from Landsat-5. The Land-cover map of the year 2020 interpreted from Landsat-8. This study uses two methods of image classifications (i.e., unsupervised and supervised). The procedure includes image enhancement, registration, and classification. Then, classification results evaluated by confusion-matrix (overall and kappa accuracy). The supervised classification produces 7 classes of Land cover (i.e., forest, pavement/urban area), paddy field, plantation, rural area, water body and sand mining area. Unsupervised classification produced four 5 class i.e., forest, built-area, paddy field, rural area, and plantation. Supervised classification done the overall and kappa accuracy = 86% and  82%, while unsupervised classification = 73% and 64% for 1997 imagery. Furthermore, for 2020 image, the Supervised classification reaches the overall and kappa accuracy = 93% and  90%, while unsupervised classification done 81% and 72%. The supervised classification method gives a better result than un-supervised. Comparison of 1997 to 2020, it also shows the increase in pavement or build-area, followed by paddy field, rural area, and sand-mining. The change also appears as the decrease in forest and plantation areas.Keywords:   Landsat-5, Landsat-8, Unsupervised, Supervised, Lumajang
Biogas Production from Tofu Liquid Waste with Cow Manure Mixture Yudhi Sudarto; Salundik Salundik; Moch. Sriduresta Soenarno
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.82-95

Abstract

Biogas is a mixture of several gases produced from the process of overhauling organic materials by microorganisms in a state without air or anaerobically. This study aims to analyze the production and quality of biogas produced from tofu liquid waste with a mixture of cow dung. The study was conducted with 4 treatments, namely 80% liquid waste tofu and water + 20% cow dung (T80K20), 70% liquid waste tofu and water + 70% cow dung (T70K30), 60% liquid waste tofu and water + 40% dung cattle (T60K40), and 50% tofu liquid waste and water + 50% cow dung (T50K50). Each was replicated 3 times with data analysis using a completely randomized design (CRD). The highest methane gas production in the T50K50 treatment was 64,986.97 ml and the highest methane gas content in the T50K50 treatment was 43% in the sixth week.   Keywords:Anaerob,Carbon dioxide,Methane,Gas production.   
Spatial Modeling of Vegetation Cover for Soil Erosion Control Based on Arc GIS and the RUSLE Models Dimas Prabowo Harliando; Chandra Setyawan; Hanggar Ganara Mawandha
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.14-27

Abstract

Deforestation in the Serayu watershed, Central Java province, Indonesia for agriculture and other uses leaves only 0.73% of vegetation. It has triggered a number of problems such as soil loss (erosion), landslides, floods and sedimentation downstream. Environmental damage control needs to be applied through appropriate conservation programs. This study aims to understand the distribution of soil erosion and the effectiveness of soil erosion control by using vegetation cover. Soil erosion modeling and its correlation to vegetation cover was performed by using an Arc GIS based model of the Revised Universal Soil Loss Equation (RUSLE) through five scenarios of vegetation landscape cover such as 10%, 15%, 20%, 25%, and 30% of the total area of the study site. Five parameters namely rain erosivity (R), soil erodibility (K), slope-length (LS) and crop management (C) and conservation practices (P) factor were used to calculate soil erosion. The results indicated 82.25 tons/ha/year soil erosion reduction due to enhancement of vegetation cover from the actual condition 0.73% to the 30% vegetation cover condition. The increase of 5% vegetation landscape cover (forest) detracted the soil erosion rate by 10,20 tons /ha/year. Very high and high soil erosion hazard levels were found in the northern, east, and west watershed areasKeywords:   Soil erosion, RUSLE model, GIS, Serayu watershed, Vegetation cover
Temperature and Humidity Monitoring in Dry Land of Cayene Pepper Based on Internet of Thing (IoT) Ida Ayu Widhiantari; Joko Sumarsono; M Abul Auni Annawawi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.70-81

Abstract

In general, plant growth will be disrupted if the environmental temperature is not suitable, even the plants will be damaged, which can cause a decrease in quality and quantity. Problems that often occur and are difficult to avoid include temperature and humidity conditions on agricultural land. Therefore it is necessary to do handling to be able to minimize the occurrence of damage that can occur in the land caused by environmental influences. This study aims to design a temperature and humidity monitoring system based on the Internet of Things (IoT). The research was carried out by designing electronic circuits from monitoring systems, hardware, software, and testing the systems that had been made. Technology supported by the use of DHT22 sensors can read temperature and humidity data in real time. Based on the research results, it was found that the DHT22 sensor used worked with the best accuracy on day 21 with an error percentage of 0% and the worst accuracy occurred on day 31 with an error percentage of 18.5%.  Keywords: Internet of thing,Humidity,DHT22 Sensor,Air temperature.   
Drying Characteristics of Jelly Ear Mushroom (Auricularia auricula) Using Microwave Oven Ning Puji Lestari; Dian Purbasari; Mochamad Sholihuddin; Iwan Taruna
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.28-38

Abstract

Jelly ear mushroom (Auricularia auricula) is easily damaged due to high water content of around 85-95%. Therefore, it is necessary to dry it to extend the its shelf life. The purpose of this study was to determine the drying characteristics and physical properties of jelly ear fungus from microwave drying. The treatment combined of blanching consisted of three levels (non-blanching, blanching 2 min, and blanching 5 min) and microwave power (422 W, 579 W, and 782 W). The research was designed randomly with 3 replications. The results showed that blanching treatments and microwave power could reduce the water content from the range of 86,23-88,39% (wet basis) to 6,65-7,89 % without blanching, 6,91-7,92 % with 2-min blanching, and 6,63-8,54 % with 5-min blanching treatment. The drying rate increased with microwave power. Treatment of non-blanching with wicrowave power of 782 W resulted in the largest color change (∆E), mamely 74.156, while 2-minute blanching with power of 422 W caused the lowest color change of 43,214. The highest rehydration ratio occurred in the 2-minute blanching treatment, but the rehydration ratio for non-blanching and 2-min blanching treatments tended to decrease as the microwave power increased.Keywords: Mushroom, Microwave, Drying rate, Fehydration ratio, Color change  
Design and Simulation of Chassis for Electric Cultivator Dwi Santoso; Abdul Waris; Saat Egra
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.174-185

Abstract

Building or designing an electric cultivator requires a comprehensive study by paying attention to each main component, namely the chassis. The chassis serves as a place to attach the constituent components and holds the weight of the overall components contained in the tool. A good machine frame will increase the workability of the machine because the components that make up the cultivator are in the right layout. A good chassis design is needed to improve the performance of the electric cultivator. This study aims to design and simulate the strength analysis of the electric cultivator frame. This research consists of several stages, namely literature review, frame design, chassis strength simulation and chassis cultivator capability analysis. From the results of the analysis concluded that technically this tool is classified as safe with a loading condition of 18 kg and a support on its axis. However, it is still recommended that before production, the tool design must be re-optimized. Especially at the joints of the upper and lower frames near the pillow block. This is because this cross section is a critical area because it has a large equivalent stress value, has a small life cycle, and has a low safety factor. Keywords:   Design, Electric cultivator, Simulation
Estimation of Erosion Potentials through Utilization of Remote Sensing Data and The Universal Soil Loss Equation Model Arif Faisol; Mashudi Mashudi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 1 (2023): March 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i1.%p

Abstract

Remote sensing data and USLE models have been used widely for erosion analysis. In Indonesia, the USLE model is a reference in erosion analysis to assess land suitability for agricultural crop development. Erosion analysis using remote sensing data provides various advantages, including good accuracy, lower costs, and can analyze erosion rates quickly compared to direct measurement methods. The aim of this study was to analyze the potential erosion in the Arui watershed - Manokwari Regency – West Papua Province using remote sensing data and USLE models. The research was conducted from April to July 2022, with three main stages i.e data inventory, data analysis, and erosion rate estimation. The research shows that the potential erosion rate in the Arui watershed is 15 tons/ha/year or 3.480 tons/year, thus exceeding the tolerable soil loss (TSL) erosion rate threshold of 9.6 tons/ha/year. Therefore, a conservation and restoration program is needed to control the erosion rate in the Arui watershed. Keywords:   Erosion rate, Remote sensing, Tolerable soil loss, USLE, Watershed

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