cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota bandar lampung,
Lampung
INDONESIA
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
 66   67   68   69   70 
Effects of Leaf Pruning and Nitrogen Fertilizer Application on the Growth and Yield of Sweet Corn (Zea mays saccharata Sturt) Riska Widiya Puteri; Didik Utomo Pribadi; Agus Sulistyono
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.v14i3.781-788

Abstract

Sweet corn production in Indonesia is relatively low due to instability and many factors, including infestation of pests and diseases, inappropriate and inefficient cultivation techniques, and the varieties. Pruning the leaves below the cob and applying nitrogen fertilizer may improve yield. The aim of this research was to investigate the combined effect of leaf pruning and types of nitrogen fertilizer on the growth and yield of sweet corn plants. A plot experiment was performed in a Randomized Block Design with 2 factors, namely leaf pruning (no pruning, 1 leaf remaining, 2 leaves remaining, and 3 leaves remaining below the cob), and types of N fertilizer (Urea 4.5 g/plant, ZA fertilizer 9.6 g/plant, and KNO3 fertilizer 15.5 g/plant). Results showed that the best type of N source was KNO3 fertilizer with fresh weight of dehusked cobs (217.68 g), cob diameter (44.84mm), and sugar content (16.26%). Combination treatment of KNO3 fertilizer and the 3 leaves remaining provided the best results on the parameters of fresh weight of husked cobs (308.50 g), cob length (18.83 cm), weight of husked cobs (10.12 kg/plot), and yield of husked cobs (28.11 ton/ha). Keywords: Cultivation, Fertilizer, Nitrogen, Productivity, Sweet corn.
Quality Assessment and Comparative Analysis of Malinau Coffee Among Indonesian Specialty Coffees Adi Sutrisno; Etty Wahyuni; Dwi Santoso; Mohammad Wahyu Agang; Deny Titing; Erwan Kusnadi; Tjahjo Tri Hartono; Mas Davino Sayaza; Elida Novita; Rahmat Pramulya; Devi Maulida Rahmah
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.v14i3.812-822

Abstract

Malinau Robusta coffee demonstrates untapped potential within the specialty coffee market. This study aims to evaluate the quality of Malinau coffee comprehensively and benchmark it against prominent specialty coffees such as Gayo, Toraja, and Kintamani. A descriptive quantitative method was employed to analyze critical parameters including caffeine content, moisture level, defect value, impurity level, grain size, and flavor profile. Coffee samples were gained from nine coffee-producing villages in Malinau Regency, involving 28 farmers covering 190 ha of coffee plantations. The results identified distinct strengths of Malinau coffee, notably its low moisture level (10.2%) and high caffeine content (1.94%) among the samples, offering a strong and intense flavor profile including chocolatey, a bitter aftertaste, and fruity undertones. Challenges for Malinau coffee includes high defect value (65.7/300 g) and impurity level (0.6%), which undermine its marketability in premium segments. To bring Malinau coffee up to par with other established specialty coffees, improvements in post harvest handling are needed, particularly sorting, quality control and consistent processes methods. By adopting innovative cultivation and processing, Malinau coffee holds strong potential as a competitor of specialty coffee, both for domestic and global markets while highlighting its unique regional identity. Keywords: Malinau coffee, North Kalimantan, Quality improvement, Robusta, Specialty coffee.
Efficiency and Profitability of Rice Farming: Comparison of Transplanting (TAPIN) and Direct Seeding (TABELA) Systems Moh. Shofiyur Rohman; Rosihan Asmara; Fahriyah Fahriyah
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.v14i2.657-665

Abstract

Farmers play an essential role in producing food and meeting the community's food needs. However, they often face various obstacles and challenges in efforts to increase crop yields to boost agricultural income. One approach to increasing agricultural productivity is by understanding the Efficiency and Profitability of Rice Farming with the transplanting system (TAPIN) and the direct seeding system (TABELA) in Padang Mentoyo Village, Kapas District, Bojonegoro Regency. This study used the Data Envelopment Analysis (DEA) method, with 74 respondents consisting of 37 TAPIN farmers and 37 TABELA farmers, to determine the level of efficiency and profitability between TAPIN and TABELA. The results showed that TABELA farmers are more efficient than TAPIN farmers because as many as 97.3% of TABELA farmers are included in the High and Full Efficient categories. This is because implementing the TABELA system is able to reduce the time needed to move seedlings, so that the planting process is faster. Keywords: Direct seeding system (TABELA), Transplanting system (TAPIN), Rice farming income, Yield.
Effectiveness of Lontar Sap Vinegar and Lime Juice as a Substitute for HCl in the Production of Skipjack Fish Bone Gelatin Naema Bora; Anastasia Grandivoriana Nomi
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.v14i2.560-569

Abstract

Gelatin is a product of collagen hydrolysis that is widely used in the food, pharmaceutical, and cosmetic industries. The gelatin production process generally uses hydrochloric acid (HCl) as a hydrolysis agent, but its use raises concerns about the environment and food safety. This study aims to evaluate the effectiveness of palm sap vinegar and lime juice extract as a substitute for HCl in the production of gelatin from skipjack fish bones (Katsuwonus pelamis). The study used a 3 x 3 factorial design with two main factors, namely the type of acid compound (HCl, coconut sap vinegar, and lime juice extract) and the acid concentration (5%, 7%, and 9%). The variables observed included yield, pH, moisture content, ash content, fat content, and gelatin protein content. The results showed that the type of acid and the con-centration of acid significantly affected the quality of gelatin. Palm sap vinegar produces gelatin with characteristics almost equivalent to HCl, with the highest protein content of 53.77%. Meanwhile, lime juice extract produced lower protein content (48.87%) yet provided lower fat content. The 7% and 9% acid concentration produces gelatin of the highest quality in terms of yield and protein content. This study shows that palm sap vinegar can be environmentally friendly and effective alternatives to replace HCl in gelatin production, with some adjustments to their concentration and application. Keywords: Acid concentration, Gelatin skipjack fish bones, Lime juice extract, Palm sap vinegar.
Bangka Sago as A Superior Starch Source: Processing, Morphology, Chemical Properties, and Heavy Metal Content Shafira Pratiwi; Edi Santosa; Mochamad Hasjim Bintoro
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.v14i3.789-802

Abstract

Indonesia has significant potential for food diversification through the development of sago as an alternative carbohydrate source. This study aims to analyze the processing methods, morphological characteristics, chemical properties, and heavy metal content of local sago in Bangka and Bangka Tengah Regencies. The research was conducted across six villages from November 2023 to March 2024, with chemical and heavy metal testing performed in accredited laboratories. The results indicate that modern processing methods produce high quality starch with a starch content ranging from 79.06% to 83.73% and heavy metal levels such as tin (Sn), lead (Pb), and cadmium (Cd) below the established safety limits, making it safe for consumption. Morphologically, habitat differences influence the physical characteristics of sago, such as trunk height, bark thickness, and leaf area, which affect starch productivity. The study also identifies that environmental factors, including nutrient availability and soil moisture levels, influence the chemical composition of sago. This research provides a scientific foundation for the integrated management of sago, supporting national food diversification efforts and opening opportunities for the development of sago based products that meet national quality standards (SNI) with an environmentally friendly approach. These findings are relevant for stakeholders in optimizing sago's potential as a strategic commodity contributing to national food security. Keywords: Food diversification, Heavy metal, Sago, Starch content, Sustainable agriculture.
Comparison of Two Fuzzification Algorithms (EC-pH and EC-pH Error Error Difference Fuzzifications) of Nutrient Solution Control in Plant Factory Ardiansyah Ardiansyah; Bastian Seno Aji; Eni Sumarni
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1361-1371

Abstract

Plant factory is a model of intensive indoor cultivation with microclimate conditioning and lighting. This research aims to develop a fuzzy-based control and monitoring system for TDS, pH, and EC parameters in hydroponic integrated with Internet of Things (IoT) technology. The research was conducted at the Laboratory of Bio-environmental Management and Control Engineering, Department of Agricultural Technology, Faculty of Agriculture, Universitas Jenderal Soedirman. The research results showed that the monitoring and control system using the Fuzzy control algorithm with EC and pH fuzzification and the Fuzzy control algorithm with error and error difference fuzzification were successfully implemented. The data obtained indicated that the Fuzzy control algorithm with error and error difference fuzzification performed better in terms of accuracy and energy efficiency. The Fuzzy control algorithm with error and delta error difference fuzzification was more accurate because a single set pint value used as a reference resulted in better control, and this algorithm also consumed less energy than the Fuzzy control algorithm with EC and pH fuzzification, with a difference of 30 minutes in EC control and 5 minutes in pH control. Keywords: AB Mix Nutrient, Arduino, ESP8266, Fuzzy Logic Controller, Plant Factory.
Interpolation of Total Dissolved Solids (TDS) Concentration in A River Using Ordinary Kriging Method Sri Wahyuningsih; Idah Andriyani; Dian Purbasari; Trioda Rizqi Nurcahyo
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.v14i3.858-865

Abstract

Water quality is a key indicator related to the sustainability of living things in a watershed. However, human activities have led to a decline in the water quality caused by industrial, domestic and agricultural waste. This study aims to predict the pattern of TDS parameters at unsampled points through a geostatistical approach, namely Kriging. Experimental measuements were conducted in the Bedadung River, Jember Regency, especially in a segment of Patrang to Wuluhan sub-districts. Currently, the river is classified as Class 3, which is below the standard, one of the water quality parameters is TDS (Total Dissolved Solid). The TDS estimation results were obtained in the range of 48.26 mg/L - 175.52 mg/L. The predicted value of TDS using the kriging method at unsampled points resulted in an RRMSE value of 8.40 %. This study revealed that the water quality of Bedadung River from Patrang to Wuluhan sub-districts was still below Class 2 standards, emphasizing the need for continuous monitoring and improvement efforts. Keywords: Ordinary kriging, River water quality, Semivariogram, Total dissolved solid.
Drying Characteristics of Pine Wood (Pinus merkusii Jungh. et de Vriese) Using Hot Air, Infrared, and Combined Infrared-Hot Air Yefri Chan; Dwi Aries Himawanto; Budi Kristiawan; Indri Yaningsih; Erwin Erwin
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.v14i3.772-780

Abstract

This research aims to determine the drying characteristics of Merkusii pine wood (Pinus merkusii Jungh. et de Vriese) using three methods, including the hot air drying, infrared, and combined infrared-hot air. The drying characteristics included temperature distribution, reduction in moisture content, drying rate, wood surface temperature distribution, and specific energy consumption (SEC). The results show that the combined infrared-hot air drying method produces a faster drying time and the highest drying rate compared to the only hot air or only infrared drying method. The fastest drying time was 345 min at a treatment temperature of 90°C, air velocity of 3 m/s, and the greatest drying rate was 0.429 gr/min at a temperature of 80°C, air velocity of 3 m/s. Additionally, the combined infrared hot air method produces a more uniform temperature distribution on the wood surface and lower specific energy consumption, specifically 1027.15 MJ/kg. Keywords: Drying, Hot air, Infrared, Temperature.
Preface February 2025 jtep jtep
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.%p

Abstract

Study of the Productivity of Oil Palm Plants (Elaeis guineensis Jacq.) on Different Topographies YOSEPHINE, INGRID OVIE; Effendi, Zulham; Fitriana, Dewi
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.v14i4.1349-1358

Abstract

The productivity of oil palm plants is influenced by several factors, including the environment (soil and climate), genetics (type or variety of oil palm) and agronomic techniques that are able to support the growth of oil palm to achieve optimal production. The objective of this research was to study the effect of topography on the oil palm productivity. Purposive sampling was carried out through direct observation in the field at three different topographies, namely, flat-to-undulating, hilly, and hilly without terraces. Each topography consisted of 2 blocks with 30 samples each. The total number of samples was 180 trees of Dy×P Dumpy variety with the same planting years, namely 2006. The results showed that oil palm plants did not show significant differences in term agronomic characteristic. The productivity of oil palm plants planted in flat to undulating topography was 21.23 ton/ha, higher than those of hilly topography (17.09 ton/ha) and those of hilly without terraces (14.62 ton/ha). Agronomic characters that were positively correlated with bunch weight were plant height, stem diameter, and number of bunches (in flat-to-undulating lands); all agronomic characters in hilly land; and plant height and number of fronds in hilly land without terraces

Page 68 of 108 | Total Record : 1077

 66   67   68   69   70 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol. 14 No. 6 (2025): December 2025 Vol. 14 No. 5 (2025): October 2025 Vol. 14 No. 4 (2025): August 2025 Vol 14, No 3 (2025): June 2025 Vol. 14 No. 3 (2025): June 2025 Vol 14, No 2 (2025): April 2025 Vol. 14 No. 2 (2025): April 2025 Vol. 14 No. 1 (2025): February 2025 Vol 14, No 1 (2025): February 2025 Vol. 13 No. 4 (2024): December 2024 Vol 13, No 4 (2024): December 2024 Vol 13, No 3 (2024): September 2024 Vol. 13 No. 3 (2024): September 2024 Vol 13, No 2 (2024): June 2024 Vol. 13 No. 2 (2024): June 2024 Vol 13, No 1 (2024): March 2024 Vol. 13 No. 1 (2024): March 2024 Vol. 12 No. 4 (2023): December 2023 Vol 12, No 4 (2023): December 2023 Vol. 12 No. 3 (2023): September 2023 Vol 12, No 3 (2023): September 2023 Vol 12, No 2 (2023): June 2023 Vol. 12 No. 2 (2023): June 2023 Vol. 12 No. 1 (2023): March 2023 Vol 12, No 1 (2023): March 2023 Vol. 11 No. 4 (2022): Desember 2022 Vol 11, No 4 (2022): Desember 2022 Vol. 11 No. 3 (2022): September 2022 Vol 11, No 3 (2022): September 2022 Vol 11, No 2 (2022): June Vol. 11 No. 2 (2022): June Vol 11, No 1 (2022): March Vol. 11 No. 1 (2022): March Vol 10, No 4 (2021): Desember Vol. 10 No. 4 (2021): Desember Vol. 10 No. 3 (2021): September Vol 10, No 3 (2021): September Vol 10, No 2 (2021): Juni Vol. 10 No. 2 (2021): Juni Vol. 10 No. 1 (2021): Maret Vol 10, No 1 (2021): Maret Vol 9, No 4 (2020): Desember 2020 Vol. 9 No. 4 (2020): Desember 2020 Vol 9, No 3 (2020): September 2020 Vol. 9 No. 3 (2020): September 2020 Vol. 9 No. 2 (2020): Juni 2020 Vol 9, No 2 (2020): Juni 2020 Vol 9, No 1 (2020): Maret 2020 Vol. 9 No. 1 (2020): Maret 2020 Vol 8, No 4 (2019): Desember Vol 8, No 3 (2019): September Vol 8, No 2 (2019): Juni Vol 8, No 1 (2019): MARET Vol 7, No 3 (2018): Desember Vol 7, No 2 (2018): Agustus Vol 7, No 1 (2018): April Vol 6, No 3 (2017) Vol 6, No 2 (2017) Vol 6, No 1 (2017) Vol 5, No 3 (2016) Vol 5, No 2 (2016) Vol 5, No 1 (2016) Vol 4, No 4 (2015): Special Edition Vol 4, No 3 (2015) Vol 4, No 3 (2015) Vol 4, No 2 (2015) Vol 4, No 1 (2015) Vol 4, No 1 (2015) Vol 3, No 3 (2014) Vol 3, No 3 (2014) Vol 3, No 2 (2014) Vol 3, No 2 (2014) Vol 3, No 1 (2014) Vol 2, No 3 (2013) Vol 2, No 2 (2013) Vol 2, No 2 (2013) Vol 2, No 1 (2013) Vol 1, No 1 (2012) More Issue