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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 1,077 Documents
 102   103   104   105   106 
Land Suitability Analysis for Peanut (Arachis hypogea) Farming in World Heritage Conservation Area Sangiran Gintu, Agung Rimayanto; Simanjuntak, Bistok H; Suprihati, Suprihati
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1738-1747

Abstract

Sangiran Archaeological Site was conservation area protected by national and inter-national regulations. Sangiran Site, however, was an open site inhabited by people commonly working as farmer cultivating food crops and horticulture. During dry season, most farmers generally cultivate peanut. This study aims to determine the suitability of land in the Sangiran area for peanut cultivation. The study was conducted by analyzing soil samples taken from several locations at the Sangiran site: Blue Clay and Black Clay from the Pucangan formation in Pablengan Village, and Kabuh soil from around the Sangiran Triangulation Monument. The results from 3 sampling areas showed that the score of Black Clay area 2.13 mean "unhealthy soil" for peanut farming. The Blue Clay area showed the score about 1.87 also mean that "unhealthy soil" for peanut farming. Kabuh formation area showed the score about 2.97 mean that "marginal health" for peanut farming. Overall the score of Sangiran areas mean that the soil belongs to "very bad" quality for peanut cultivation.
Preface April 2025 jtep, jtep
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 2 (2025): April 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i2.%p

Abstract

Effectiveness of Nanobubble Technology with Gas Variations in Improving the Quality of Vetiver Wastewater and River Water Yusuf, Asep; Nurrachman, Mochamad Anfasa; Nanda, Muhammad Achirul; Asdak, Chay
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1489-1495

Abstract

Improving the quality of wastewater and river water is a critical priority for environmental conservation. Vetiver root wastewater and water from the Citepus River in the Cikamiri sub-watershed, Garut Regency, have the potential to cause pollution that affects water quality and local ecosystems. This study evaluated different gases (air, oxygen, and ozone) during the application of nanobubble technology to improve the quality of vetiver root wastewater and Citepus River water in the Cikamiri sub-watershed. Parameters measured were DO, pH, and TDS before and during 15-minute nanobubble treatment. Results showed that oxygen and ozone gases significantly increased DO content of the wastewater and river water. In addition, ozone gas improved pH in river water, and decreased TDS most effectively with ozone. It was concluded that nanobubble technology has potential for enhancing wastewater treatment and river conservation.
Chemical and Organoleptic Characteristics of Pempek Using Different Ratios of Lampam Fish Surimi and Tapioca Flour Dasir, Dasir; Suyatno, Suyatno; Amnes, Putri Anisa
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1882-1892

Abstract

The use of lampam fish as a raw material for pempek is a new effort to overcome the high cost of snakehead fish. The study aims to determine the chemical and organoleptic characteristics of pempek using a comparison of lampam fish surimi with tapioca flour. The study was conducted in the laboratory of the Muhammadiyah University of Palembang and the Agricultural Product Technology laboratory, Faculty of Agriculture, Sriwijaya University from December 2023 to February 2024. The study used a non-factorial randomized block design with five treatment levels, namely P1 (surimi 250 g:tapioca flour 350 g), P2 (surimi 300 g:tapioca flour 350 g), P3 (surimi 350:tapioca flour 350 g), P4 (surimi 400 g:tapioca flour 350 g), P5 (surimi 450 g:tapioca flour 350 g) with three replications. The research parameters include analysis of protein content and water content, organoleptic tests of color, aroma, taste, and elasticity. The results showed the highest protein content in P5 at 23.37% ± 0.10, and the highest water content in P5 at 59.11% ± 0.35. The highest level of preference for color was 4.28 ± 1.06 (like), aroma was 3.76±1.54 (rather like), taste was 3.84 ± 0.72 (rather like) and elasticity was 3.92± 1.00 (rather like) in P5.
Application of Solar Energy for Coconut Grating Machine in Rural Areas Asbanu, Husen; Esye, Yendi; Chan, Yefri; Faturachman, Danny
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1767-1777

Abstract

Manual processing of coconut and the expensive gasoline force farmers to sell copra at low prices. This study explores the potential use of solar energy for operating coconut grating machines. The experiment utilized a 100 Wp solar panel to run a coconut grating machine driven using ¼ HP electric motor. The observation parameters included solar irradiance, power, voltage, current, battery charging duration, and energy efficiency. The results indicate that a 100 Wp solar panel is insufficient to meet the power requirements of the 186 W electric motor. Therefore, adding at least two solar panels and increasing the battery capacity must meet the machine's operational requirements. The battery charging time, until complete, is recorded at 16 h. Without the support of solar panels, the battery can operate the machine for 3 to 4 h. Meanwhile, when the battery is recharged while the machine operates with the solar panel system, the operating duration can reach 6 to 7 h. Therefore, solar energy demonstrates great potential as a renewable energy solution that can be utilized in the agricultural processing process in rural areas in a sustainable and environmentally friendly manner. Testing of the coconut grating machine powered by solar energy, supported by a 12V 100Ah battery and a 1/4 HP motor, showed that it can operate for approximately 3.8 h in a single work cycle. With a grating duration of 2.6 min per coconut, the system can grate up to approximately 87 coconuts per operational cycle.
Cover Vol 14 No 3, June 2025 jtep, jtep
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.%p

Abstract

Processing and Quality of Crystalized Palm Sugar in Indonesia: A Review Kurniawan, Hary; Rahayoe, Sri; Amnah, Hanim Zuhrotul
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 4 (2025): August 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i4.1517-1533

Abstract

Crystalized palm sugar derived from coconut and arenga palm sap has high-value for industrial products. The crystalized sugar offers several advantages over molded palm sugar, including a longer shelf life, lower glycemic index, and greater flexibility in its applications. However, palm sugar production in Indonesia is still predominantly carried out using traditional methods, which are inefficient in terms of quality control and production capacity. This review explores various aspects of palm sugar processing and quality in Indonesia, including raw materials, production processes, quality determinants, as well as challenges and development prospects. Key factors influencing product quality include the quality of raw materials, cooking techniques, drying methods, and proper storage practices. Uncontrolled fermentation of sap can hinder crystallization, while high moisture content may cause clumping and reduce product stability. To enhance global competitiveness, palm sugar must meet both the national and international certifications. The main challenges in this industry include the lack of Good Manufacturing Practices (GMP), limited adoption of modern processing technologies, and inconsistency in product quality. Quality improvement efforts through artisan training, production modernization, and supply chain strengthening are essential to ensuring that Indonesian palm sugar can compete in international markets. With proper strategies, palm sugar holds promising potential as a flagship export commodity from Indonesia.
Analysis of Potassium (K) Uptake and Plant Growth of Lettuce (Lactuca sativa L.): Effect of AB Mix Concentrations and NPK Fertilizer Doses Ramlan, Ramlan; Hijrah, Siti; Khaliq, Adnan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1925-1934

Abstract

Soil is a crucial growing medium that supplies nutrients essential for plant development. This study aimed to evaluate the effect of AB Mix concentrations and NPK fertilizer dosages on potassium (K) uptake, growth, and yield of lettuce (Lactuca sativa L.). The experiment was conducted from June to September 2024 in Nupabomba Village, Donggala Regency, and in the Soil Science Laboratory of Tadulako University, using a factorial Randomized Complete Block Design (RCBD). The first factor was AB Mix concentration: A0 (control), A1 (24 ml/3 L), and A2 (1,800 ppm = 27 ml/3 L). The second factor was NPK dosage: D0 (control), D1 (0.7 g/7 kg), and D2 (1.4 g/7 kg). Data were analyzed using ANOVA followed by the Honest Significant Difference (HSD) test at a 5% significance level. Results showed that AB Mix and NPK fertilizer significantly affected potassium content in plant tissue but did not significantly affect soil pH, C-organic content, soil potassium levels, or potassium uptake. Treatments significantly increased plant height, number of leaves, and fresh weight, while dry weight was unaffected. These findings indicate that appropriate AB Mix and NPK combinations enhance lettuce growth and yield by improving tissue potassium content without altering soil properties.
Evaluation of the Suitability of Irrigated Paddy Fields (Oryza sativa L.) in the Kelingi Irrigation Area, Tugumulyo District, Musi Rawas Regency Oktaviano, Oktaviano; Yuwana, Yuwana; Barchia, Faiz; Reflis, Reflis
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1758-1766

Abstract

Rice is a strategic staple food whose productivity is influenced by land suitability. This study aims to determine the level of land suitability class for irrigated lowland rice (Oryza sativa L.) in the Kelingi Irrigation Area, Tugumulyo District, Musi Rawas Regency. The study was conducted using a survey method that refers to the level of limiting factors reviewed from land characteristics. Data from field observations and laboratory analysis data were matched with the criteria for land suitability classes for irrigated lowland rice. The actual land suitability class for lowland rice crops is moderately suitable (S2) covering an area of 5,225 ha (51.41%), marginally suitable (S3) covering an area of 4,626 ha (45.52%), while marginally suitable (S3) with a slope of >8% covering an area of 312 ha (3.07%) is recommended for annual crops. The main limiting factors are water availability, land slope class and soil fertility. The limiting factor of soil fertility, still allows for further improvement of its suitability class, by providing balanced fertilizer and to increase the soil pH, agricultural lime can be provided (low input), to overcome the slope of the land, light terracing can be made (medium input), while to overcome water shortages, irrigation channels can be built/rehabilitated.
Environmental Factors and Mulching Effects on Soil Nitrogen in Organic Curly Chili (Capsicum annuum L.) Cultivation for Sustainable Agriculture Wulan, Indah Retno; Nugroho, Bayu Dwi Apri; Setyawan, Chandra; Tanjung, Jeane Claudea; Ardhitama, Aristya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1829-1842

Abstract

Nitrogen availability is a critical determinant of chili yield, and its dynamics are influenced by environmental conditions and cultivation practices such as mulching. This study aimed to evaluate the combined effects of environmental factors and mulching on soil nitrogen levels in curly chili (Capsicum annuum L.) cultivation using organic fertilizer under a sustainable agriculture framework. The experiment used a randomized block design with 24 plots and three treatments: no mulch (P1M0), organic mulch with bamboo leaves (P1M1), and inorganic mulch with plastic (P1M2). Monitoring was conducted for 4 months on soil pH, volumetric water content (VWC), electrical conductivity (EC), temperature, rainfall, solar radiation, humidity, and wind speed. Results showed that soil nitrogen was highest in no mulch (31.1 mg/kg), followed by organic mulch (28.8 mg/kg), and lowest in inorganic mulch (25.6 mg/kg). ANOVA confirmed that organic mulch was comparable to no mulch, but significantly better in maintaining nitrogen than inorganic mulch. Regression analysis identified electrical conductivity as the strongest positive predictor across all treatments, while soil pH showed negative effects and average temperature tended to reduce nitrogen under no mulch conditions. Model accuracy was strong (R²: P1M0 = 0.799, P1M1 = 0.799, P1M2 = 0.699). The use of bamboo leaves can be an alternative in maintaining soil nitrogen availability. Mulching practices adapted to environmental conditions can enhance soil fertility and support sustainable chili production.

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