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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 1,170 Documents
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Analysis of Soil Fertility Status and Capability Based on Slope and Land Use Wahyu Riska Putri Ardila; Purwadi Purwadi; Fitri Wijayanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.361-371

Abstract

Declining soil fertility can be a major factor affecting soil productivity. Declining soil fertility can be caused by two factors, namely natural factors such as topography, and man made factors, such as land management. Assessment of soil fertility status is very important understand good soil fertility conditions that support agricultural and plantation activities. This study aims to determine the soil fertility status and the classification of soil fertility capability. This research was conducted through field survey on four land use units (LUUs) with 16 sampling points determined purposively. The obtained data were then combined to classify the level of status and ability of soil fertility using Fertility Capability Classification (FCC) method. The results showed that the overall LUUs have low fertility status criteria with base saturation (BS) as a heavy limiting factor, and potassium (K) and C-organic content as medium limiting factors. All LUUs, however, revealed almost the same FCC unit. Based on the FCC unit, soil fertility is constrained by some sandy texture soil types (S), with modifiers of acid soil reaction conditions (h), steep slopes (%), and some are constrained by low potassium (k).
Application of Arbuscular Mycorrhizal Fungi and Manure to Improve Saline Soil Characteristics Maghfirotun Ni'mah Hidayati; Rossyda Priyadarshini; Purnomo Edi Sasongko
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.562-570

Abstract

Soil salinity can damage soil structure due to its high sodium chloride content, leading to soil erosion and reduced aeration, which decreases the ability of plants to absorb water and inhibits plant growth. One approach to overcome this problem is by improving the chemical properties of saline soil; therefore, research on the application of arbuscular mycorrhizal fungi and manure is needed. This study aimed to determine whether the addition of manure and arbuscular mycorrhizal fungi at appropriate rates could improve the chemical properties of saline soil. A completely randomized design (CRD) with two factors was used, in which the first factor was the dose of arbuscular mycorrhizal fungi with four levels and the second factor was manure application with two levels, each repeated three times, resulting in eight treatments and 24 experimental units. The results showed that although the application of mycorrhizal fungi and manure did not significantly affect soil pH or electrical conductivity (EC), a single factor manure treatment increased soil pH and reduced EC values, while a single factor treatment of arbuscular mycorrhizal fungi reduced soil EC values. The combined application of manure and arbuscular mycorrhizal fungi significantly increased N-available (NH₄⁺ and NO₃⁻) during the first week after the application of 20 ton/ha of manure and 105 CFU/mL of arbuscular mycorrhizal fungi (M1K1).
Geospatial Mapping of Smallholder Oil Palm Plantation in Tanah Laut Regency Using QGIS Jaka Darma Jaya; Rizqie Mayasari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.10-18

Abstract

Smallholder oil palm plantations play a crucial role in the Indonesian palm oil industry, but research on their spatial characteristics and performance at the district level is limited, as most previous studies tend to generalize plantation trends without utilizing local geospatial analysis. This study addresses this gap by using QGIS 3.32.1 to classify, map, and assess the status of smallholder oil palm plantations in Tanah Laut Regency, South Kalimantan. Plantations are categorized into productive and non-productive based on district-level BPS data, with a total planted area of ​​14,479 ha, consisting of 12,693 ha of productive land and 1,786 ha of non-productive land. Batu Ampar has the largest productive land (3,527 ha), while Tambang Ulang and Panyipatan have significant non-productive land, 328 ha and 300 ha, respectively, indicating the presence of immature plantations. Total production varied between 396–4,603 tons, with Batu Ampar, Jorong, and Tambang Ulang as the main contributors, while yield per hectare ranged from 435–620 kg, with Bati-Bati recording the highest yield. These findings confirm that plantation management practices determine productivity more than land area alone. This study presents an integrative method that combines spatial and statistical data, facilitates district-level plantation monitoring, and demonstrates that the use of open-source GIS tools such as QGIS offers a cost-effective, replicable approach that supports planning, policy, and sustainable development for smallholder farmers.
Effect of Gelatin and Iota-Caragenan (Eucheuma spinosum) on the Quality of Green Cincau (Premna oblongifolia Merr) Jelly Julfi Restu Amelia; Aura Putri Aryanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.33-43

Abstract

Green cincau (Premna oblogifolia Merr) can form gel, but it is fragile and easily syneresis, so gelatine is needed as another gel-forming material. However, the addition of gelatine with high concentration causes hard texture, therefore iota carrageenan as an alternative gel-forming material is substituted. The purpose of this study was to determine proper ratio of gelatine and iota-carrageenan concentrations for the quality of green grass jelly products. The experiment was arranged in completely randomized design (CRD) with 5 ratios of Gelatine to Iota Carrageenan, namely P1 (10%:0%), P2 (7%:3%), P3 (5%:5%), P4 (3%:7%) and P5 (0%:10%). Data was analyzed using ANOVA followed by HSD test at α = 0.05 for texture test, water content, ash content, antioxidant activity value, and organoleptic test. Results showed that the best treatment for green cincau jelly was treatment P3 with gel strength at hardness parameters of 2200.23 gf, springiness 0.96%, chewiness 1911.30 gf, and gumminess 2111.98 gf due to the interaction between gelatine and iota carrageenan. The water content was 47.28%, ash content was 1.06%, antioxidant content was 374.83 ppm, hedonic values for all parameters were in the range of 4 (taste) and 5 (colour, aroma, texture) and the results of the number of yeast molds <1×102 colonies/ml.
Effect of Stirring Technique Variations and Roasting Time on the Chemical, Microbiological, and Sensory Characteristics of Shredded Spiced Fish Puan Mutia Ayunisa; Dewi Sartika; Gusri Akhyar; Sri Hidayati; Sussi Astuti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.277-289

Abstract

Lampung Province is known as one of the producers of freshwater fish in Indonesia, with Ranau tilapia as its superior commodity. This fish is known for its thick, dense flesh and free from muddy odor, making it very suitable for use as a raw material for processed value-added products such as shredded spiced fish. However, traditional production methods still have limitations in terms of efficiency and risk of contamination. This study aims to determine the interaction and optimal results between mechanical and conventional stirring methods combined with five variations of roasting time (60, 75, 90, 105, and 120 min). Fresh Ranau tilapia was mixed with selected spices and processed based on these variations. The results showed that the interaction between stirring technique and roasting time significantly influenced the chemical, microbiological, and sensory characteristics of the final product. Optimal treatment, stirring using a machine for 105 min (M2S4), produces shredded spiced fish that meets the Indonesian National Standard (SNI), with a moisture content of 9.80%, ash content of 4.06%, protein content of 38.57%, and microbiological safety of 1.53 log CFU/g. Sensory evaluation also shows a high level of consumer acceptance. This technological innovation increases production efficiency, ensures consistent product quality, and becomes a reference model for MSMEs in developing a competitive and sustainable local food industry.
Sustainability Analysis of Hybrid Maize Farming in Grogol District, Kediri Regency Tazkiyah Salsabila; Rita Parmawati; Fadli Mulyadi; Dwi Retno Adriani; Budi Setiawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 2 (2026): April 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i2.534-542

Abstract

This study aims to evaluate the sustainability of hybrid maize farming in Grogol District, Kediri Regency, by considering economic, ecological, and social aspects that influence farmers’ welfare and the resilience of the agricultural system. The research employed observation, structured interviews, and questionnaire distribution, with data analyzed using the Multidimensional Scaling (MDS) method. Instrument reliability was tested through validity and reliability assessments. The findings show that the sustainability status of hybrid maize farming in the study area falls into the less sustainable category, with index scores of 44.11 for the ecological dimension, 49.15 for the economic dimension, and 46.19 for the social dimension. Leverage analysis identified that pest and disease control, market access expansion, and transportation infrastructure were the most sensitive attributes influencing each respective dimension. Moreover, Monte Carlo analysis revealed stress values below 0.5, indicating the accuracy and stability of the MDS results. These findings highlight that improvements in those key attributes are crucial for enhancing sustainability. Therefore, integrated strategies involving extension services, market development, and infrastructure improvement are essential to significantly improve the overall sustainability of hybrid maize farming in the region.
Design of Portable Rainfall Simulator Prototype Suhardi Suhardi; Bambang Marhaenanto; Dedy Wirawan Soedibyo
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.164-174

Abstract

A rainfall simulator is laboratory equipment used to simulate rainfall and replicate the characteristics of natural rain with parameters such as rain intensity, raindrop diameter, rain kinetic energy, rain uniformity coefficient (CU), and rain distribution uniformity (DU). Therefore, this study aims to design a rainfall simulator for rain simulation with good performance. Portable rainfall simulator performance tests include functional tests and performance tests. Functional tests to ensure that the portable rainfall simulator is easy to assemble, lightweight, and functions well. Meanwhile, performance tests are carried out by analyzing rain intensity, raindrop diameter, kinetic energy, uniformity coefficient (CU), and rain distribution uniformity (DU). The results of the study indicate that the rainfall simulator functions well, is easy to assemble, and is lightweight so that it can be applied to various field conditions. Meanwhile, the rainfall simulator performance test shows good performance, with a significant linear relationship existing between pump pressure, rain intensity, raindrop diameter, and kinetic energy. Likewise, the results of the rainfall simulator performance evaluation produce good output with an average of CU and DU greater than 80%. Thus, the portable rainfall simulator functions well and can be used for rainfall simulation.
Effect of Combined Application of ZA Fertilizer and Goldensoil G-03 Organic Powder Fertilizer on the Growth and Yield of Lumbu Putih Garlic (Allium sativum L.) Krisna Wahyu Stianingsih; Makhziah Makhziah; Felicitas Deru Dewanti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.313-321

Abstract

Garlic (Allium sativum L.) is a valuable horticultural crop in Indonesia, widely used both as a culinary staple and for its medicinal properties. This study was conducted from October 2024 to January 2025 in Paras Hamlet, Kembangbelor Village, Pacet District, Mojokerto Regency, East Java, to determine the optimal combination of ZA fertilizer and Goldensoil G-03 organic powder fertilizer (POP) for enhancing garlic growth and yield. The research employed a factorial design with two factors using a Split Plot Design (RPT) with three replications. The main plots consisted of ZA fertilizer applications at 200 kg/ha (Z1), 300 kg/ha (Z2), and 400 kg/ha (Z3), while the sub-plots included Goldensoil G-03 POP treatments: no POP (G0), 100 g/20 kg inorganic fertilizer (G1), 200 g/20 kg (G2), and 300 g/20 kg (G3). Data were analyzed using ANOVA and the HSD test at a 5% significance level. The research results showed that the independent application of 400 kg/ha ZA fertilizer had a significant effect on garlic growth and yield. However, the independent application of Goldensoil G-03 did not have a significant impact on garlic growth and yield.
Mechanisms and Application of Fruit and Vegetable Shelf Life Extension Using 1-MCP, NO, and Melatonin: Systematic Review Melati Pratama; Daniel Saputra; Gatot Priyanto; Anny Yuniarti
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 6 (2025): December 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i6.2458-2472

Abstract

Fruits and vegetables are perishable commodities after harvest. Fruit and vegetable damage occurs due to post-harvest metabolic processes that can result in the formation of ROS and ethylene, bacteria, fungi, chilling injury and mechanical damage (wounds). New technologies were discovered to inhibit ripening, aging and post-harvest fruit damage, namely the use of Methylcyclopropene (MCP), Nitric Oxide (NO) and Melatonin. The purpose of this paper is to analyze the mechanism of the three inhibitors, their applications, advantages and disadvantages so that they can be used effectively and efficiently. The method used is systematic review, data are collected and analyzed systematically. A review of 106 articles shows that MCP, NO, and melatonin have different mechanisms. MCP works by inhibiting ethylene receptors, NO through four pathways (S-nitrosylation, limiting SAM formation, forming MACC, binding NO-ACC-ACC), and melatonin through four pathways (slowing ripening, reducing cold damage, as an antioxidant, as an antibacterial agent).
Factors Affecting the Extent of Agricultural Land Conversion on the Household Economy of Rice Farmers Rezza Hardanovita; Nuriah Yuliati; Gyska Indah Harya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 15 No. 1 (2026): February 2026
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v15i1.135-145

Abstract

Agricultural land conversion not only threatens the sustainability of the farm sector, but also influences the socioeconomic conditions of farmer. The purpose of this study is to examine the external and internal factors affecting agricultural land conversion on the household economy of rice farmers. Using a quantitative survey approach, this study collected primary data from 30 rice farmers in Kloposepuluh Village, Sidoarjo Regency, selected through purposive sampling. Secondary data were obtained from official sources, including government agencies and regional planning documents. The influence of independent variables on land conversion was examined using multiple linear regression analysis. Results show some variables significantly influence on land conversion, including land area ownership, influences from developers and other farmers, employment opportunities, and economic pressures. These variables encourage farmers to convert their land to non-farm uses. On the other hand, land conversion is not significantly affected by government policy variables, indicating the weak effectiveness of policy interventions in controlling land conversion. The results highlight the need for the government to play an active role in enhancing agricultural land protection policies by adopting more adaptive and participatory strategies. Furthermore, providing economic incentives and safeguarding farmers is expected to reduce the economic pressures that lead to land conversion.

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