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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 1,078 Documents
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ANALYSIS OF WATER BALANCE ON SOYBEAN CULTIVATION (Glycine max [L] Merr.) IN DRY LAND -, Oktaviani; Triyono, Sugeng; Haryono, Nugroho
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

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Abstract

ABSTRACTSoybean is one important food crop in Indonesia after rice and corn. In 2008 to 2010, the amount of soybean harvest has fluctuated. One effort to increase the soybean yield is by using the expansion programs to exploit dry lands. However, water scarcity is the main problem faced in dry land cultivation.  For this reason, study on optimalization of water use become very important and potential of water harvesting is needed to be explored.  This study aimed to analyze and to partition the water balance at soybean cultivation, and also to explore the potential of rainwater harvesting.  The experiment was conducted at the Integrated Field Laboratory of the College of Agriculture, University of Lampung from 15 October 2011 to 6 January 2012.  The observations were carried out by constructing 8 plots, 2x1 m2 each, and in a longitudinal direction of the 5-6% slope.  Four of the experimental plots were sealed with plastic liner and another four pots were left without liner.  Each plot was equipped with a 1x0,5x0,5 m3 water storage pond at the down end of the plot.  Physical properties were determined at the beginning experiment; while rainfall, soil moisture, and water surface of the ponds were monitored evey day.  Soybean yield was weighed at the harvest time. The results showed that water balance could be divided into input and output.  Water input was partitioned into rainfall 41,56% and irrigation 58,44%.  Water output was partitioned into runoff 6,76%, percolation 13,74%, evapotranspiration 74,35%, moisture stored in the soil 0,20%, and irrigation surcharge 5,04%.  Irrigation efficiency was found about 91%, while rainwater harvested contributed 20,74% of the irrigation total.  Potential of productivity was found to be 3,3 ton soybean yield per ha, and potential water use productivity was about 0,74 kg soybean per m3 irrigation water. Keywords: evapotranspiration, soybean, surface runoff, water balance, water harvesting.
KARAKTERISTIK PENGOLAHAN LIMBAH CAIR PABRIK MINYAK KELAPA SAWIT DALAM BIOREAKTOR CIGAR SEMI KONTINU Shintawati, Shintawati; Hasanudin, Udin; Haryanto, Agus
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 2 (2017)
Publisher : The University of Lampung

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Abstract

Palm oil mill effluent (POME) waste water contains high consentration of organic pollutants. Anaerobic treatment is suitable to reduce the pollutans and also produce methane as one of renewable energy sources. Anaerobic degradation is complicated and sensitive process to the environtment, such as temperature and organic consentration. This study aims to determine characteristic of palm oil mill waste water treatment using semicontinue anaerobic CIGAR bioreactor. The seed was collected from sludge of anaerobic pond at POME treatment facility of PTPN VII Bekri. The substrat used in this experiment was fresh POME from the same mill. Initially, 4,375m3 of sludge was introduced into the bioreactor. The seed was acclimatized at a loading rate of 50 l/day for about a week. Anaerobic treatment was conducted at room temperature and the substrat was fed semicontinuelly at a loading rate of 100 to 350 liter/day. Results showed, that the stability of anaerobic degradation was achieved at an organic loading rate (OLR) of 0,9-3,11 kg/m3/day with COD removal more than 90% and maximum biogas production of 2,59 m3/day. Keywords : palm oil mill effluent, anaerobic bioreactor, COD removal, biogas.
ANALISIS SPASIAL LAHAN PERTANIAN PANGAN BERKELANJUTAN (LP2B) DI KABUPATEN PESAWARAN Pratama, Agung; Amin, Mohamad; Asmara, Sandi; Rosadi, Bustomi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 7, No 1 (2018): April
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (474.574 KB) | DOI: 10.23960/jtep-l.v7i1.41-50

Abstract

ABSTRACT  Land is the main factor in developing agriculture.  The increase of population’s number and economy activity, give impact to land’s needs.  This should trigger land conversion happen.  Land conversion would be a problem if that happens on productive agricultural land.  According to BPS Pesawaran, that every years the harvested area of rice crops decreased in Pesawaran regency.  Lahan Pertanian Pangan Berkelanjutan (LP2B) is the government’s effort in protecting and overcome land conversion of food agricultural land.The purpose of this research was to analyze the potential of Lahan Pertanian Pangan Berkelanjutan (LP2B) and Lahan Cadangan Pangan Berkelanjutan (LCP2B) in Pesawaran regency.  The decree of LP2B and LCP2B refers to Constitution number 41 in 2009 about Perlindungan Lahan Pertanian Pangan Berkelanjutan (UU PLPPB).The potency of LP2B in Pesawaran regency is as large as the total potency’s wide of Lahan Pertanian Pangan Berkelanjutan (LP2B) in Pesawaran regency that is 10.236,49 Ha, which is consisted as potency of Lahan Cadangan Pertanian Pangan Berkelanjutan (LCP2B) of 1.294,06 Ha. Keywords : Land conversion, LP2B, LCP2B, and Pesawaran Regency.
RESPONSE OF GROWTH AND YIELD OF THREE VARIETY OF SOYBEAN (Glycine max [L] Merr.) ON SOME AVAILABLE SOIL WATER DEPLETIONS Wawan Setiawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 3 (2014)
Publisher : The University of Lampung

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Abstract

The aims of this research was to find out the effect of available soil water depletion on the growth andyield of three varieties of soybean (Glycinemax [L]Merr.). This study used a factorial ina completely randomizeddesign (CRD)with 2 factors, namely factor I (Available soilwater depletion fraction, p) and Factor II (Variety, V).Each treatment consisted of 3 levels, factor I consists of P1(0.2), P2(0.4) and P3(0.6) of available soil waterdepletion, and factors II consists of three variety,Wilis (V1), Kaba (V2) andTanggamus (V3), with repeats 3 times.Reference evapotranspiration measurements on P(0.2) is done using the grass plant. The results showed thattreatment of available soil water depletion fraction (p), varieties, and their interactions were not significantlydifferent, on the growth and production. All three varieties of plant did not experience stress during growth anddevelopment stage until harvest. The highest productionwas inTanggamus varieties (V3) in P1(0.2) of 17.86 g/potwith a total of 80.430 ml of irrigation water, followed by Kaba (V2) on P1(0.2) 15.23 g/pot with total irrigationwater 75.800ml andWillis (V1) on P3(0.6) 14.96 g/potwith a total of 75.600ml of irrigationwater. The smallerof available soil water depletion fraction the higher of evapotranspiration (ETc). Crop yield response factor towater (Ky) greater than 1 (Ky>1), this means that the decrease of relative production larger than decrease ofrelative evapotranspiration.
THE EFFECT OF TAPIOCA FLOUR AS A SUBSTITUTION OF WHEAT FLOUR TO THE PHYSICAL PROPERTIES OF WET HERBAL NOODLES Chelvia Faramudita Dessuara
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 2 (2015)
Publisher : The University of Lampung

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Abstract

The aims of this researchwere to find out the effect of the amount of tapioca flour subtituted inwheat flour on thephysical attributes ofwet herbal noodles. The studywas analyzedwith the completely randomized designwith 4variations of substitutiontapiocawhich are 0%, 10%, 20%, and 30%with 3 repetitions for each treatment. Theresults showthat the higher the substitutionof tapioca flour, the higher thewater content and tensile strength, butthe lower thewater absorption and swell noodles. The average score of each composition in the hedonic test tendsto be on the classification dislike – neutral. Noodles with tapioca flour tend to bemore durable. The analysis ofvariance and Duncan test ( <0,05) show that substitution of tapioca significantly affects moisture content,tensile strength, and the HSI color, but tapioca substitution does not influence the water absorption and swellnoodles.Keywords : Herbalwet noodles, Food quality, Tapioca flour
THE EFFECT OF LAMP TYPES ON THE GROWTH AND PRODUCTION OF LETTUCE GROWN IN AN INDOOR HYDROPHONIC SYSTEM Restiani, Ag Reni
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 3 (2015)
Publisher : The University of Lampung

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Abstract

The objective of this research was to evaluate responses of grand rapid lettuce (Lactuca sativa L.) grown in anindoor hydrophonic system(awick system) under the treatments of some different types of lighting. The researchwas conducted in April to June 2015. The treatment in this reearch consisted of a single factor (types of lighting)with five levels: Sun lighting (N0), 2 tubes of 18Watt fluorescent lamp (N1), 2 sets of 36Watt LED + 1 tube of 150Watt halogenlamp (N2), 2 setsof 36Watt LED+ 2 tubes of18Watt fluorescent lamp (N3), and 150Wattbulb (N4).Each treatment consisted of four plantswhichwere grown in a 60 cmx 60 cmx 120 cmgrowth chambermade ofplywood, except for sun light treated plantswhich were placed inamini greenhouse. Results showed that amongthe plants in the growth chambers, the best vegetative growthwas shown by the lettuce in the treatment of 2 setsof 36Watt LED + 2 tubes of 18Watt fluorescent lamp (N3), However; compared to those plants grown under thesun light, the lettuce inN3 still looked etiolation because light intensitywas not optimal yet.Keywords: Lamp types, lettuce plants, wick systemhydroponic
PENGARUH PENAMBAHAN ARANG SEKAM PADI TERHADAP SIFAT KONDUKTIVITAS HIDROLIK PIPA MORTAR Made Suwito
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 1 (2016)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (177.891 KB) | DOI: 10.23960/jtep-l.v5i1.%p

Abstract

Penelitian bertujuan untuk mengetahui nilai konduktivitas hidrolik jenuh (Ks) mortar arang sekam padi (ASP) sebagai sarana irigasi bawah permukaan tanah (subsurface irrigation).  Terdapat 2 perlakuan komposisi mortar ASP yaitu dengan perbandingan berbasis volume antara semen, pasir, ASP dan air masing-masing 1:3:3:5 (P1) dan 1:3:3:5,5 (P2). Mortar ASP yang dihasilkan berbentuk sislinder berlubang dengan diameter luar 10 cm, diameter dalam 7 cm dan panjang 20 cm.  Uji rembesan mortar ASP menggunakan alat berupa tabung mariot sebagai penyuplai air ke dalam mortar ASP. Pengujian rembesan dilakukan dengan menggunakan 6 taraf ketinggian (head) yaitu 0 cm (K1), 15 cm (K2), 30 cm (K3), 45 cm (K4), 60 cm (K5), 75 cm (K6). Hasil Penelitian menunjukkan nilai Ks untuk faktor perlakuan komposisi mortar P1 dan P2 masing-masing adalah 0,0035 cm/jam dan 0,0157 cm/jam.  Mortar ASP pada perlakuan P2 yang lebih efisien untuk kepentingan irigasi bawah permukaan tanah (subsurface irrigation) dikarenakan nilai Ks yang lebih tinggi dibandingkan dengan mortar pada perlakuan P1 Kata Kunci: mortar ASP, irigasi bawah permukaan tanah, konduktivitas hidrolik
EVALUASI POTENSI PENGAIRAN CALON LOKASI PERLUASAN SAWAH DI KABUPATEN TULANG BAWANG, PROVINSI LAMPUNG Thoriq, Ahmad; Sampurna, Rizky Mulya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 3 (2016)
Publisher : The University of Lampung

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Abstract

Water resources availability is a key that must be met in the paddy field extension due to water is needed for thegrowth of paddy. This study was to evaluate the potential of irrigation area for paddy field extension in TulangBawang, Lampung. The study began with the preparation phase, followed by field coordination, mobilizationteams, survey and investigation of the potential for irrigation area, processing and analysis of data field. Theresults showed that potential location of water resources in Tulang Bawang river and Pidada river with instantaneousdischarge ranged 1180-3775470 liters/ sec. Those water resources are located above the candidate sites and willbe used to irrigate candidates area varied from 74.39 to 1381.71 hectares. Driest month occurs in August about85.5 mm/month of rainfall while wet months in January about 353.33 mm/month of rainfall with annual rainfallranges from 2372 to 2539 mm/year.Keywords: irrigation, Tulang Bawang, paddy field extention
UNJUK KERJA ALAT PEMOTONG PELEPAH SAWIT TIPE DODOS SECARA MANUAL DAN MEKANIS MENGGUNAKAN MESIN HUSQVARNA 327 LDx Aldo Christian; Sandi Asmara; Cicih Sugianti; Mareli Telaumbanua
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 7, No 1 (2018): April
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (402.54 KB) | DOI: 10.23960/jtep-l.v7i1.15-24

Abstract

ABSTRAK Pemotongan pelepah sawit menggunakan alat dodos manual menghasilkan produktivitas kerja yang rendah dan resiko kecelakaan yang tinggi. Oleh karena itu, diperlukan mesin dodos mekanis yang dapat meningkatkan produktivitas serta menurunkan resiko kecelakaan kerja. Tujuan dari penelitian ini adalah mengukur kapasitas kerja, beban kerja dan kebutuhan energi pada alat dodos manual dan mekanis. Perlakuan pada penelitian ini berdasarkan perbedaan tinggi pohon kelapa sawit (2 m, 3 m dan 5 m) dan jumlah pelepah yang terpotong (6, 12 dan 18). Hasil penelitian menunjukkan perbandingan kapasitas kerja alat tertinggi antara dodos manual dan mekanis pada tinggi pohon 3 m sebesar 718 dan 951 pelepah/jam sedangkan pada 2 m sebanyak 533 dan 696 pelepah/jam dan tinggi pohon 5 m sebesar 495 dan 710 pelepah/jam. Secara umum pada pengujian beban kerja semua perlakuan diklasifikasikan pada beban kerja ringan kecuali untuk alat dodos manual pada pengujian 18 pelepah termasuk klasifikasi beban sedang. Kebutuhan energi untuk alat dodos manual dan mekanis sebesar 2,0-5,0 Kkal/menit dengan klasifikasi beban kerja ringan. Konsumsi bahan bakar mesin Husqvarna 327 LDx yaitu 0,336 L/jam. Konsumsi bahan bakar paling efisien terdapat pada tinggi pohon 3 m sebanyak 0,353 mL/pelepah sedangkan pada tinggi pohon 5 m sebanyak 0,473 mL/pelepah dan tinggi pohon 2 m sebanyak 0,483 mL/pelepah.Kata kunci :   Pelepah kelapa sawit, dodos manual, dodos mekanis tipe Husqvarna 327 LDx.
Prediction of Self Life of Kemplang Crackers Packaged in Polypropylene Plastick with Thickneses Astrid Wulandari; Sri Waluyo; Dwi Dian Novita
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 2 (2013)
Publisher : The University of Lampung

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Abstract

Kemplang crackers are classified as absortive food.  This may cause kemplang crackers are easly soggy and their texture become tougher and chewier.  The objective of this research was to predict the self life of packaged kemplang crackers placed in different storage conditions. Kemplang crackers were stored in a polypropylene (PP) plastic with three different thicknesses : 0,3 mm, 0,5 mm and 0,7 mm and relative humidity (RH) of about 63% and about 53%.  The packages were stored in ambient temperature.  The results showed that kemplang crackers stored at lower RH and thicker plastick have a longer self life.  The self life of kemplang cracker stored in PP plastic with thickness of 0,3 mm, 0,5 mm, and 0,7 mm and in ambient RH were 12 days, 14 days, and 33 days, respectively, while the self life of kemplang cracker storaged in PP plastic with thickness of 0,3 mm, 0,5 mm, and 0,7 mm and RH of about 53% were ranging from 185 days to more than >365 days. Keywords: Kemplang Crackers, Polypropylene Plastic, Self -life

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