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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
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Similarity Among 10 Cayenne Pepper (Capsicum frutescens L.) Mutant Accessions Resulted from Gamma-Ray Irradiation Khairunissa, Asya Zhafira; Makhziah, Makhziah; Soedjarwo, Djarwatiningsih Poengky
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.v14i4.1434-1440

Abstract

Cayenne pepper (Capsicum frutescens L.) is a horticultural crop which production is not comparable to the level of public consumption. Chili plants induced by gamma irradiation experienced character changes, which caused the population of mutant accessions to have a diversity of characters. The similarity test of mutant accessions was carried out to determine the relationship distance between accessions. The research was carried out at the Faculty of Agriculture, UPN "Veteran" East Java, Surabaya City, with a geographical location at 7⁰ 9' - 7⁰ 21' South Latitude and at 112⁰ 36' - 112⁰ 54' East Longitude. The experimental design used was a Completely Randomized Design, with 3 replications of each, also using one factor, namely mutant ( ) or genotype resulting from gamma ray irradiation mutations of cayenne pepper. Heritability tests were also carried out in this study. The results of the heritability test showed that the characteristics of plant height, fruit length, fruit diameter, fruit weight per plant, and number of fruit per plant had high heritability values, namely above 30%. The result of similarity test visualized by the dendogram shows that 10 mutant accessions and the parental have a similarity coefficient ranging at 21% to 78%. The lowest similarity coefficient is owned by M2 accession, specifically at 21%.
Analysis of Raw Material Inventory Control in Robusta Ground Coffee Production Maharani, Adinda Dwi Ulfah; Winarno, Sri Tjondro; Widayanti, Sri
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.v14i4.1212-1221

Abstract

This study aims to analyze raw material inventory control using the Material Requirements Planning method as raw material inventory control and to forecast inventory in 2024. The data analysis method is qualitative quantitative descriptive analysis. This analysis was carried out at CV Kopi Citarasa Persada. Efficiency data processing uses Minitab 21 and Excel. The problem in this study is related to frequent running out of raw materials due to late ordering by the company. The results of the study show that the availability of raw materials for coffee beans, packaging and stickers has a Lead Time of 4 days with the application of the Lot Sizing method, Part Period Balancing technique and the Wagner Within Algorithm which are the most efficient in obtaining minimum ordering costs in this study. Robusta ground coffee demand data for a year in 2023 produces forecast data for January and February 2024 by comparing the Moving Average and Single Exponential Smoothing techniques. The comparison results show that the Moving Average technique is suitable for forecasting raw material inventory because it has a smaller MAD value, the smaller the forecast value obtained, the more accurate it is in determining the size of the data as it was originally.   Keywords: Forecasting, Lot Sizing, Material Requirements Planning.
Morpho-Physiological Responses of Purbalingga and Purowkerto Local Black Rices to Drought Stress Sholikhah, Ummi; Khamidah, Khusna; Handoyo, Tri; Tanzil, Ahmad Ilham; Fanata, Wahyu Indra Duwi; Ratnasari, Tri; Saputra, Tri Wahyu
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.v14i4.1148-1155

Abstract

Black rice (Oryza sativa L. indica) is a pigmented rice plant that has high antioxidant content. Drought is an abiotic stress that can inhibit the growth and productivity of rice plants. Planting of local black rice with several drought treatments using PEG 6000 was observed in this study. The aim of this research is to determine the morphological and physiological response of local black rice plants in Purbalingga and Purwokerto at various levels of drought stress. This research used a Completely Randomized Design (CRD) with 2 factors. The first factor is 2 local black rice plants, namely Purbalingga and Purwokerto. The second factor was drought stress treatment via PEG 6000 with 4 treatments, namely 0% PEG (control), 5%, 10%, and 15%. The results showed that when applying 15% PEG, local black rice in Purbalingga and Purwokerto experienced a decrease in plant height and number of leaves but increased root length. Based on the physiological response, when addition 15% PEG there was a decrease in the amount of chlorophyll and an increase in the content of H2O2 and anthocyanins in both Purbalingga and Purwokerto local black rice.   Keywords: Black Rice, Drought Stress, Morphological Response, Physiological Response.
Effects of Gluconacetobacter xylinus Concentrations on the Physicochemical Properties of Bacterial Cellulose from Coconut Water Medium Sya'di, Yunan Kholifatuddin; Wicaksono, Damar Bima; Suyanto, Agus
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.v14i4.1415-1423

Abstract

Utilization of coconut water into a bacterial cellulose product is promising to take advantage of the abundant natural resources. The synthesis of bacterial cellulose using coconut water media requires optimal conditions to achieve the best characteristics as a bioplastic component. This study aims to determine the effect of variations in the concentration of Gluconacetobacter xylinus starter. The type of research is experimental using a one-factor Complete Random Design (RAL) by going through a fermentation process influenced by variations in starter concentrations (5%, 7%, 9%, 11%, 13%, 15%) with test parameters including water vapor permeability, tensile strength, and crystallinity index. The results showed a significant influence (p≤0.05) of water vapor permeability testing, tensile strength testing, and yield testing. The crystallinity index test of the best treatment obtained a concentration of 15%. The best treatment of 15% resulted in the average water vapor permeability (3.84x10-7 g/(m2/day)), tensile strength (69.25 MPa), crystallinity index (91.35%), and yield (75.70%). Bacterial cellulose produced using a 15% starter can be used as bioplastic packaging material and allows for further research by combining it with other materials to obtain the best and most affordable bioplastic formulation.
The Effect of Milking Time and Post-Harvest Handling on the Quality of Fresh Milk in People Livestock Fitriananda, Putri; Pertiwi, Setyo; Arief, Irma Isnafia
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.v14i4.1243-1255

Abstract

Milk composition is essential in determining the quality of milk produced by farmers to meet the SNI 3141.1:2011. This study aimed to analyze and assess the physical, chemical, and biological quality of fresh milk from crossbred dairy cows at different milking times and harvest-postharvest handling. The experimental was designed using 2×2 Factorial Complete Randomized design with six repetitions. The independent variables in this study were milking time, including morning (P1), and afternoon (P2). Handling methods included conventional (V1), and modern (V2). Biplot analysis, and Multi-Criteria Decision-Making (MCDM) using the Analytic Hierarchy Process (AHP) method was performed. Milking time had a significant (p<0.05) on specific gravity, pH, TS, fat content, TSNF, protein, lactose, TPC, and S. aureus, which produced the best value at P1, except fat content. Harvest-postharvest handling had a significant (p<0.05) on pH, TPC, S. aureus, and coliforms, where V2 produced the best values compared to V1. Modern harvest-postharvest handling can reduce the TPC of fresh milk by 32.73%, S. aureus by 43.33%, and coliforms by 40.97% compared to that of conventional methods. Biplot analysis showed proximity between TPC, S. aureus and coliform. AHP optimization showed that morning milking time and modern handling methods are the most optimal combinations for producing best quality of fresh milk.   Keywords: Fresh milk, Harvest-postharvest handling, Milking time, Quality.
Impact of Rice Price Fluctuations on the Welfare of Paddy Farmers Fadilah, Rizka Putri; Widayanti, Sri; Hendrarini, Hamidah
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.v14i4.1369-1381

Abstract

Rice is a staple food for Indonesia and should be available at an affordable price. This study aims to analyze the factors causing fluctuations in rice prices, and analyze the effect of changing prices on the livelihoods of rice farmers. The farmers’ welfare was calculated using Farmer Exchange Rate (FER). The analysis was conducted using a simultaneous equation model, utilizing time series data from 2009 to 2023. This study employed Two-Stage Least Squares (2SLS) and Multiple Linear Regression techniques. The findings reveal that rice production is significantly influenced by the previous year’s rice prices and the size of the harvested area. Meanwhile, the factors affecting consumption are the rice price variable and income levels, as well as the factors influencing rice prices, which include the price of unmilled dry grain, rice production, and the highest retail price. Meanwhile, regarding the welfare of rice farmers measured by the FER, it is known that the FER in East Java has fluctuated from 2009 to 2023. The highest contributor to the rice FER occurred in 2023, reaching 115.64%, with an average FER for East Java from 2009 to 2023 of 102.86%. This indicates that the Rice FER is in a surplus state, suggesting that rice farmers are prosperous.
Development of Irrigation Networks Based on Priorities Using the Multiple Attribute Decision Making Method Ristiyana, Suci; Saputra, Tri Wahyu; Purnamasari, Ika; Wijayanto, Yagus; Alfatah, Naufal Akbar; Al-Ghofiqi, M. Faris; Destria Putri, Romadhona; Prasojo, Sri Irawan Laras
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.v14i4.1359-1368

Abstract

Development of irrigation networks is a crucial element in increasing the efficiency and effectiveness of water distribution for agriculture. This research aims to determine priorities for developing irrigation networks in the Bedadung Irrigation Area, Jember Regency, using the Multiple Attribute Decision Making (MADM) method. This method consider various criteria influencing decision-making, such as physical condition of the channel, land area, water requirements, and level of infrastructure damage. This research involved collecting primary and secondary data through field surveys, interviews with interpreters, as well as reviewing technical and administrative documents related to irrigation networks. Data was analyzed using several MADM techniques, such as Simple Additive Weighting (SAW), Weighted Product (WP), and Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) to obtain the weight of each criterion and determine development priorities. The results show that the main priority for developing irrigation networks in the Bedadung Irrigation Area is repairing primary, secondary, and tertiary canals that are badly damaged, followed by increasing canal capacity to meet water needs in the dry season. Implementation of the results of this research is expected to increase the efficiency of irrigation water distribution, reduce water losses, and increase agricultural productivity.
The Effect of Rootone F Concentration and Planting Media Composition on the Growth of Fig (Ficus carica L.) Cuttings Samodro, Intan Febriana; Sutini, Sutini; Hidayat, Ramdan
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.v14i4.1189-1198

Abstract

Fig cuttings often face problems with failure of the roots to grow from the cuttings, so efforts are needed to encourage root induction by administering auxin growth regulators. Rootone F is an exogenous PGR from the auxin group which can stimulate root growth. In order for the roots to grow, develop and function well, plants need an ideal planting medium. The ideal planting medium to support good growth of plant seeds is a proportional composition of physical, chemical and biological elements. The aim of the research was to examine the combined effect of Rootone F concentration and planting media composition on the vegetative growth of fig cuttings. The research consisted of two treatment factors, namely the concentration of Rootone F (0 ppm (Control), 100 ppm, 150 ppm and 200 ppm) and the composition of the planting media (soil: husk charcoal: cow manure) with a ratio (1:1:1), (2:1:1), and (3:1:1). The best treatment combination is 150 ppm Rootone F and planting media mixed with soil: roasted husks: organic cow fertilizer with a ratio of 3:1:1 which has a significant effect on shoot length, root length, fresh weight of roots and percentage of live cuttings (%). A concentration of 100 ppm Rootone F gave the best results when the first shoots appeared (DAT), a concentration of 150 ppm Rootone F gave the best results on the number of leaves. A planting medium composition of (3:1:1) gives the best results when the first shoots appear (DAT).   Keywords: Auxin, Growth regulator, Influence, Nutrient, Vegetative.
Effect of Branch Pruning and NPK Fertilizer Dosage on Plant Growth and Yield of Baby Cucumber (Cucumis sativus L.) Choirunnisa, Ramadhanti; Sulistyono, Agus; Saefurrohman, Saefurrohman
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.v14i4.1156-1165

Abstract

Cucumber (Cucumis sativus L.) is rich in nutrients and vitamins, an is popular for fresh salads and various processed foods. The objective of this work is to study the effects of branch pruning and NPK fertilizer dose on the growth and yield of baby cucumber in order to solve the decrease in cucumber production. The research was executed in Dander Village, Bojonegoro Regency, East Java. The experiment was performed according to a Randomized Block Design with two factors. The first factor is branch pruning, and the second factor is the dose of NPK fertilizer. Branch pruning was carried out in four ways: no pruning, pruning branches at nodes 1–3, nodes 1–4, and nodes 1–5. The NPK fertilizer dose was also applied at four levels: 800, 900, 1,000, and 1,100 kg/ha. The observed parameters included plant length, number of leaves, time to female flower appearance, fruit length, number of fruits per plant, total fruit weight per plant, and fruit weight per hectare. The data were analyzed using analysis of variance (ANOVA) and tested with HSD at 5%. The results showed that the combination of no pruning and the application of 1,100 kg/ha NPK fertilizer produced the best results in terms of fruit weight per hectare.   Keywords: Baby cucumber, Branch pruning, Harvest, Macro-nutrients, Photosynthate translocation.  
Effect of Paclobutrazol and Gandasil Fertilizers on the Growth and Yield of Cayenne Peppers (Capsicum frutescens L.) in Urban Farming Sari, Aisyah Shinta Nila; Sulistyono, Agus; Dewanti, Felicitas Deru
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.v14i4.1118-1127

Abstract

Cayenne pepper cultivation in urban areas faces several obstacles, including infertile soil, irregular watering due to busy daily activities, pests and diseases that spread more easily in urban areas, and high temperature changes. This study aims to obtain the optimal concentration of paclobutrazol and Gandasil fertilizer for the development and production of cayenne pepper. This study used a factorial completely randomized design with two factors, namely paclobutrazol concentration consisting of 4 levels (0 ppm, 75 ppm, 100 ppm, and 125 ppm) and Gandasil B/D fertilizer consisting of 4 levels (1 g/L, 2 g/L, 3 g/L, and 4 g/L). Results showed that treatment combination of paclobutrazol 100 ppm and Gandasil 3 g/L gave the best results on the number of flowers per plant (822.0), number of fruits per plant (144.5), and fruit weight (156.77 g/plant). This combination may, however, result in low fruit yield and inhibit vegetative development, including leaf number and plant height. The fastest flowering age was obtained at combination paclobutrazol 125 ppm and Gandasil concentrations of 4 g/L with a value of 39.33 days.   Keywords: Concentration, Gandasil fertilizer, Growth, Paclobutrazol, Yield.

Page 69 of 108 | Total Record : 1077

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