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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.
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Articles 10 Documents
 1 
Search results for , issue "Vol 4, No 4 (2015): Special Edition" : 10 Documents clear
THE EFFECT OF FLUORESCENT LAMP DISTANCE ON PLANT GROWTH KAILAN (Brassica oleraceae) WITH WICK SYSTEM HYDROPONIC IN THE ROOM (Indoor) Eka Susilowati
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (285.99 KB) | DOI: 10.23960/jtep-l.v4i4.%p

Abstract

Fluorescent light is one kind of lamp that can be used in hydroponics systems in the room (indoor).  The distance of lights placement to the plant needs to be precisely determined to obtain optimal plant growth.  The objectives of this study was to determine the effect of fluorescent lamp distance on plant growth of kailan (Brassica oleraceae) with wick system hydroponics in the room (indoor).  Research used a randomized complete block (RCB).  There were five treatments such as one treatment used sun exposure (N0), and four artificial lights each using a 5x36 watt fluorescent bulb.  Four artificial lights treatment were done indoors using different distances between the light to the surface of the planting media.  The 4 treatments were 20 cm (N1), 40 cm (N2), 60 cm (N3), and 80 cm (N4).  Each treatment consisted of 4 plants totaling 20 plant samples. Plants treated in the room were placed in compartments or growth chambers with the dimension of 60 cm x 60 cm x 110 cm.  While plants treated out the room were placed in a greenhouse.  Data of plants production was analyzed using analysis of variance, followed LSDcomparision with á = 0,05.  The result showed that distance treatment of 20 cm from the bulb to the surface of planting media (N1) was the best among the other artificial lighting treatment based on all parameters observed such as number of leaves, plant height, leaf area, leaf area index, biomass weight with upper part and lower part.  However, it was still less optimal as compared to the treatmen of sun exposure (N0).Keywords: fluorescent lamps, kailan, indoor hydroponics, wick system hydroponics
THE GROWTH OF MUSTARD USING HYDROPONICS AND AQUAPONICS SYSTEMS Aulia Rakhman
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.511 KB) | DOI: 10.23960/jtep-l.v4i4.%p

Abstract

Hydroponics is an alternative way of farming in a limited area of urban.  It is Easy, controlled, and can be done on media without soil, even in a house.  In hydroponic watering system done  automatic and the environment can be controlled to prevent the plant from pests, it is suitable for people who spent more routine work in the office than at home. However, hydroponics nutrients is very difficult to obtain, even in Lampung no body has sold. Aquaponics is another alternative that could be used to grow crops in a limited area and the nutrients are easier to find because it uses fish waste. This study was conducted to evaluate whether the fish waste could replace hydroponic nutrients to support the growth of mustard plants.This research compared yield of mustard plants grown in three treatments, namely L1 (hydroponics), L2 (Aquaponics using comet fish), and L3 (Aquaponics using tilapia).  The study was conducted at the residence of Amin Khairi, St. Said Sabri, No. 58B, Kedaton, Bandar Lampung and Laboratory of Agricultural Engineering Department, University of Lampung.  The variables tested were plant height, leaf number, root length, and the total weight of harvest. The research showed that the growth of mustard plants at hydroponic was better than at aquaponics systems.  The average plant height at week four were 24,6 cm; 9,1 cm; 14,0 cm of L1, L2, and L3, respectively.  The average number of leaves at week four were 10,2; 7,2; 7,7 of L1, L2, and L3, respectively.  The average root lenght at week four were 27,3 cm; 10,6 cm; 15,0 cm of L1, L2, and L3, respectively. The total weight of mustard plants of L1, L2, and L3 were 77,08; 9,7; 28,6 grams; respectively.Keywords: hydroponics, Aquaponics, nutrients, mustard
THE EFFECT OF CONCENTRATION CARRAGEENAN FLOUR AND GLYCEROL AS EDIBLE COATING AGAINST THE CHANGES IN QUALITY OF STROWBERRIES (Fragaria x ananassa) DURING STORAGE Rita Nopita Sari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.258 KB)

Abstract

Strawberries is one of the horticultural products which have a high economic value however short shelf life. Fruit damaged is mainly caused by  process of respiration and transpiration. One of the manipulation of this factors can be done by coating technique.  The aim of this research was to find out the best coating on strawberries used different concentration of carageenan and glycerol, and observed the changes of physical and chemical on Strawberries during storage. This study used completely randomized design factorial with the first factor of the concentration carrageenan (0.5%, 1%, 1.5%, 2%, 2.5%) and the second factor glycerol concentration (1%, 2%). Data analyzed by analysis of variance (ANOVA) and tested signification by LSD.  The observed parameter during the storage such as hardness, weight loss, soluble solids content, vitamin C and total acid. The result showed with analysis of variance (á=5%)theconcentration of carrageenan significantly on hardness, weight loss, and total acid of Strawberries. The interaction between carrageenan and glycerol concentration significantly on hardness (2ndday) and total acid (4th and 5th day) of strawberries during storage.  The best treatment in this research is combination of carrageenan concentration 2.5% and glycerol concentration 2% (K5G2) able to inhibit decrease of hardness and change of total acid strawberries.Keywords: strawberry, carrageenan, glycerol, edible coating
DESIGN EVALUATION OF BROILER HOUSE IN REJO BINANGUN, KECAMATAN RAMAN UTARA, KABUPATEN LAMPUNG TIMUR Nadzir, Nadzir
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (534.281 KB)

Abstract

The study aims to identify problems in broiler housnd evaluate design to increase productivity of broiler. The study was done from May – Juni 2015 at broiler house at Rejo Binangun, Kecamatan Raman Utara, East Lampung. Parameter observed and measured is: (1) the condition house in the study locations, including material house and size dimensions house; ( 2 ) environment parameter, includring to scatter temperature and RH, and distribution wind speed around the house; ( 3 ) comfort house parameter, including position broiler and mortality broiler; ( 4 ) ergonomic parameter; ( 5 ) evaluation design house. The result shown that design of broiler house was currently good, but need to repair on the floor and the stair. Broiler house performance was good, seen from broiler growth that reached standard weight, and mortality rates at 4 % or 60 broiler. Keywords: Design Broiler House, Design Evaluations, Broiler
THE MAKING OF HYDROTON WITH DIFFERENT SIZE AS GROWTH MEDIA OF HYDROPONIC FROM CLAY AND DIGESTATE Oktafri Oktafri
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.631 KB)

Abstract

This study aimed to determine the effect of digestate composition and sizes of the granules to bulk density, water holding capacity, and the physical of hydroton. The design of this study used completely randomized factorial design with three replications. The first factor is digestate compositionwith 3 levels are 0%, 25%, and 50% to weigh of clay soil. The second factor is size particular of hydroton with 3 levels are 2-4 mm, 4-8 mm, and 8-12 mm. The results showed that there was no significant interaction between digestate composition and size of granules. However, the composition of digestateeffected to bulk density, water holding capacity, and the physicalof hydroton. The treatment combination by A3B3 was achieved the best result isthe value of bulk density media 0,83 gr/cm3, water holding capacity of 25,95%, and the physical of hydroton 11,63 N/cm2.Keywords :growth media, hydroponic, hydroton, clay soil, digestate
EFFECT OF ORGANONITROFOS FERTILIZER CONCENTRATION ON THE GROWTH AND PRODUCTION OF ORGANIC TOMATO (Lycopersicon esculentum Mill)WITH SUB SURFACE IRRIGATION SYSTEM Sayu Putu Okta Rinasari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (302.907 KB) | DOI: 10.23960/jtep-l.v4i4.%p

Abstract

This study aims to observe the effect of concentration of organitrofos fertilizer on the growth and productivity of organic tomato plants with sub irrigation systems. The method used in the study was completely randomized design  with six treatments. The six treatments were O0 (without organonitrofos), O1 (organonitrofos 10%, soil 90%), O2 (organonitrofos 20%, soil 80%), O3 (organonitrofos 30 %, soil 70%), O4 (organonitrofos 40%, soil 60%), and O5 (organonitrofos 50%, soil 50%). The results showed that different concentrations of organonitrofos fertilizer had no effect on the vegetative phase, but sinificantly different on the generative phase, yields, biomase, and evapotranspiration. Based on analysis of LSD, treatment ofO2 ( 20 % organonitrofos, soil 80 % ) was able to significantly increase crop yields compared with the treatments of O0 (without organonitrofos with additional chemical fertilizer ) and treatment O1treatment ( 10 % organonitrofos , soil 90 % ).  But the use of  higher than that in the treatment of O2 ( 20 % organonitrofos, soil 80 % ) did’t significantly increase production. Keywords: Organic Farming, Organonitrofos, Tomato, Subs Irrigation
MODIFICATION OF WTER PUMP WIT GAS FUEL FOR PORTABLE SPRINKLER IRRIGATION SYSTEM Mukhlis Tri Handoko
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (194.888 KB) | DOI: 10.23960/jtep-l.v4i4.%p

Abstract

Water pump that used by farmers for irrigation in general is ussualy gasoline pump. Using gasoline as a fuel will certainly add to the production costs, because the price of gasoline is more expensive and its availability are declining . Therefore, farmers should choose an alternative fuel that is cheaper to minimize production costs, for example is LPG fuel. The purpose of this research were to test the uniformity of flow performance, uniformity of distribution and application rate of portable sprinkler irrigation with a pump of gas-fire fuel pump. This research was conducted at the Marga Agung village, Jati Agung sub-district, South Lampung  in May-June 2015. Modified propulsion pump on the fuel system (carburettor) was replaced with a universal carburetor throat. Pump performance test conducted on a portable sprinkler irrigation systems (Tusi, 2013) using three variations of the pressure (1 bar, 1.25 bar and 1.5 bar). The tests conducted to determine coefficient of uniformity (CU), beam diameter, and weeting diameter. Modifications engine pump causes fuel consumption is more efficient, but the engine tends heat faster. The value of the test results obtained 1bar pressure by 32,2% CU, the discharge of 0.64 m3/h and wetting diameter of 15 m. Whereas at a pressure of 1.25 bar of 47,1% obtained CU, the discharge of 0.79 m3/h and a wetting diameter of 16 m. Varriation of pressure effected on pump performance test measurement results. The average needs of fuel gas was 0.47 kg per hour pump operation.Key word: modification, LPG, Portable Sprinkle, performance test
DESIGN OF EBB AND FLOW HYDROPONICS SYSTEM FOR BABY KAILAN (Brassica oleracea) WITH COCOPEAT AS GROWING MEDIA Ramadhan, Handy
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.89 KB)

Abstract

Ebb and flow hydroponics system generally has little quantity of plants and expensive construction cost.  The purpose of this research was to design an ebb and flow hydroponics system with many quantity of plants but low in manufacturing cost and to test its performance.  This research was conducted at the Laboratory of Agricultural Engineering, Agricultural Engineering Department, University of Lampung.  The research procedures included several stages : design, assembly, testing, observation and data analysis.  The ebb and flow hydroponics system was designed with the spesification of 200 cm length, 150 cm width, and 285 cm height and equipped with multi-span roof and screen wall.  The planting tray has 13 furrows with 200 cm length, 15 cm width and 15 cm depth and 9 holes of planting aech row, so there are 117 plants on the tray.  The manufacturing cost of ebb and flow hydroponics system was lower than hydroponics kits available in market.  The obsevations showed that temperature inside greenhouse was lower than outside with a difference of 1,58 °C.  Humidity inside greenhouse was higher than outside with a difference of 4,3%.  Cultivation testing using baby kailan with cocopeat as growing media resulted in fresh weight 35,75 gram each plant harvested.Key words : Design, ebb and flow hydroponics system, baby kailan, cocopeat and    growing media.
DESIGN AND PERFORMANCE TEST SYSTEM AUTOMATIC CONTROL ON DRIP IRRIGATION USING MICROCONTROLLER ARDUINO MEGA Candra, Hendrik
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.619 KB)

Abstract

Drip irrigation has been applied to provide water and nutrient solution to plants. The application of drip irrigation system at this time is not precise yet generally because water is provided based on time schedule, not base on soil water content or plant requirement for water. This research aims to design and test the performance of an automatic device that control drip irrigation system automatically; using  microcontroller Arduino Mega accomplished with Zigbee technology connection. The device works based on soil water content.  Water pump will be turned on when the soil moisture is less than critical water content, and will be turned off when the soil water content is higher than field capacity. Sensor calibration and validation were performed by using three different soil textures: silt loam, loamy sand, and sandy loam.  Each soil sample was mixed with compost by ratio of 5: 1.  The testing of the device; however, was done by using sandy loam soil texture. Sensor calibration showed that relationship between voltage and soil water content was linear with R2=0,88; 0,95; 0,96 respectively for  silt loam, loamy sand, and sandy loam.  While, validation showed that errors were 0,63%; 0,52%; 0,60% respectively for silt loam, loamy sand, and sandy loam.  The results also indicated that linear regressions (correlation between voltage and soil water content) turned out to be applicable for specific Soil Texture.  Therefore, this device may not be used for general soil textures. The result of the test showed that the automatic device could work properly.  Interval of data transmission was properly done per minute rather than per second.Keywords:Drip Irrigation, Microcontroller, Automatic Control, Soil Water Content.
FUNGSIONAL BEVERAGES INSTANT GINGER POWDER (Zingiber officinale rosc)WITH THE ADDITION OF BULBULUS EXTRACT VARIATION (Eleutherine Americana Merr) AS NATURAL DYES Rifkowaty, Encik Eko
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 4 (2015): Special Edition
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (245.24 KB)

Abstract

Antioxidant is a good compound for health because it scavenges free radicals in the body. The addition of bulbulus extract is expected to increase the antioxidant activity of the instant ginger powder. This study aimed to determine the effect of variation bulbulus extract addition on moisture content, reducing sugar, and antioxidant activity, as well as  preferency of instant ginger powder. Research was conducted using Completely Randomized Design (CRD) consisting of single factor with three (3) repeatitions. Organoleptic test was peformed on three attributes: namely color, taste, and texture. Result showed that the addition of bulbulus extract, Based on Anava and LSD test of the moisture content and reduction sugar, every treatment was significantly different. However, teh treatment did not  significant affect on the antioxidan activity. GC-MS analysis, enriched with bulbulus extract show that instant gnger powder it is assumed that the variation of of bulbulus extract addition bubulus extract contain important  of compounds such as eleuthherol (88,79 %), gingerol (1,18 %)and zingiberene( 10,03 %). Organoleptic test demonstrate that the addition of consumerKeywords: instant ginger powder, bulbulus extract, antioxidant, preferensi

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