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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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EVALUASI PENGGUNAAN MESIN TANAM BIBIT PADI (RICE TRANSPLANTER) SISTEM JAJAR LEGOWO DI LAHAN PASANG SURUT Sudirman, Umar; Pangaribuan, Sulha
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 2 (2017)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.254 KB)

Abstract

Penanaman padi secara manual membutuhkan tenaga yang cukup banyak dan waktu yang lama sehingga membutuhkan biaya yang besar. Salah satu teknologi yang sekarang sedang dikembangkan di beberapa daerah adalah teknologi penanaman bibit padi dengan mesin Rice transplanter. Tujuan dari penelitian ini untuk mengevaluasi kinerja mesin tanam bibit padi (rice transplanter) agar dapat meningkatkan efisiensi dan pendapatan petani. Metode lapang penggunaan mesin tanam bibit padi dilakukan 3 kali ulangan pada lahan berukuran masing-masing 20 m x 200 m yang menggunakan semaian sistem dapog. Evaluasi penggunaan mesin tanam bibit padi dilaksanakan di desa Sidomulyo, Kabupaten Kapuas, Provinsi Kalimantan Tengah pada musim hujan 2016/2017. Parameter pengujian adalah kinerja mesin rice transplanter, fase generatif (pertumbuhan dan jumlah anakan produktif), produksi dan kelayakan penggunaan transplanter jajar legowo. Hasil pengujian menunjukkan bahwa kinerja dari mesin transplanter jarwo relatif baik dilihat dari keseragaman tanam 97,5%, jumlah bibit tertanam tiap lobang berkisar 2-3 batang/lobang dan kedalaman tanam adalah 3,6 cm, sedangkan jumlah lobang tidak ada tanaman 1,92%. Dengan kecepatan maju mesin 2,34 km/jam, kapasitas efektif mesin transplanter untuk mengerjakan satu hektar sawah sebesar 6,15 jam. Efisiensi tenaga kerja sistem tanam jajar legowo dengan mesin transplanter indo jarwo di lahan pasang surut sebesar 80,43% sehingga menekan biaya tanam sebesar Rp. 1.472.500,- atau efisiensi biaya tanam 73,73%. Mesin tanam bibit padi transplanter jarwo di lahan pasang surut dapat membantu mengatasi kelangkaan tenaga kerja tanam. Kata kunci : mesin tanam bibit padi; jajar legowo; rawa pasang surut; padi.
DESIGN AND PERFORMANCE TEST OF JOBS TEARS (COIX LACRYMA JOBI L.) THRESHER MACHINE SOLID CYLINDER ROLL TYPE Saputra, Ady; Hartanto, Rofandi; ., Warji
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 3 (2013)
Publisher : The University of Lampung

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Abstract

Jobs tears (Coix Lacryma-jobi L.) was a cereal crop that used as high nutrient food and animal feed ingredients. The purpose of this research was to design and test the performance of jobs tears seeds thresher machine of solid cylinder roll type. The machine parts consisted of machines frame, threshing cylinder, jobs tears seeds container, gear transmission, gearbox, and electric motors. Design process of its consisted of structural design and functional design to managed all parts of threshers. This machine was driven by an electric motor. The power and rotational speed of electric motor was 1 HP (1.400) rpm that was transmitted to the gearbox by V-belt and pulley. Speed of electric motor rotation was modified from1,440 rpm to 30 rpm, 38 rpm and 50 rpm by a gearbox with 1:30 ratio. gearbox rotation was transmitted to threshing tool (solid cylinder roll).  Rotation of this two solid cylinders roll  had a clearance of 6,5 mm that suppressed jobs tears seeds, so the seeds could be separated from the stems.  This research resulted the jobs tears seeds thresher machine of solid cylinder roll type. The optimum rotation speed of cylinder was 50 rpm, with loss percentage 79.68% and percentage of good threshed jobs tears seeds 88.57%. This machine had a work capacity of 50,45 kg jobs tears seeds per hour. Keywords: Jobs tears, Thresher of solid cylinder roll type.
EFFECT OF SAVING AGE FROM SUGARCANE’S WATER STORAGE LIFE TO SWEETENESTLEVEL OF SUGARCANE’ WATER Destriyani, Leny -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (274.197 KB) | DOI: 10.23960/jtep-l.v3i2.%p

Abstract

Sugarcane is the most important farm commodity in Indonesia. Sugarcane has a short storage life, therefore it takes an alternative storage to extend its storage life that will add value to the sugarcane. The storage of sugarcane by its waterstorage is an alternative option. The purpose of this research is to determine the storage life of sugarcane by its water after harvesting, searching for information on sugar levels forming on the storage of sugarcane by its water, and observe the changes in weight and fhysical sugarcane’s water during retention. This research was configured in two ways, first by sugarcane’s water storage at low temperatures 10 ºC and second by room temperature. From this research, each experiments showed different result. The sugarcane’s storage life old out until 9 days with the experiment using plastic packaging at low temperatue of 10 ºC with the treatment of sugarcane water with the packaging and without plastic packaging. The experiment using room temperature without any plastic packaging last out until 5 days. In each experiments, each showed the increasing in total dissolved solids until the third day, it will decrease everyday, the conclusion is the sugarcane is more efficiently stored on low temperature.Keywords: sugarcane’s water, temperature, packaging, sweetenestLeve, storage life
THE STUDY OF PHYSICAL CHARACTERISTICS OF GRANULAR ORGANIC FERTILIZER WITH TWO ADHESIVES Utari, Ni Wayan Arya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 3 (2014)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (399.528 KB) | DOI: 10.23960/jtep-l.v3i3.%p

Abstract

Granular organic fertilizer is a fertilizer that is partially or completely derived fromorganicmaterials in the formof dense granules. The objectives of this research were to evaluate the effect of adhesives materials and theircompositions on the physical characteristics of granular organic fertilizer produced. This researchwas conductedat the Bioprocess and Post Harvest Engineering Laboratory and also atPower and Agricultural MachineryLaboratory, Department of Agricultural Engineering, Lampung University. The design of this study usedRandomized Complete Block (RCB)with factorial arrangementand three replications. The first factor consistedof two levels : clay and starch. The second factorwere the percentage of the adhesivesmaterials : 5%, 8%, 11%.Each experimental unitweighted 4 kg rawmaterials of the organic fertilizer.The results showed that11%of clayis themost optimal adhesive formaking granular organic fertilizers. Higher percentage of adhesivesmaterialstended to increase bulk density, durability,water absorption, and dispersiontime of the granular organic fertilizer.However, statisticallythe type of adhesivesmaterials and their compositionhad significant effect onlyonpercentageof granule size for 2-5 mm and dispersion time.
STUDY OF THE PHYSICAL PROPERTIES OF WET NOODLES WITH ADDITION OF SEA WEED Billina, Aisya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 2 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.744 KB) | DOI: 10.23960/jtep-l.v4i2.%p

Abstract

The objective of this research was to study the physical properties ofwet noodles with addition of sea weed suchas: water content, water absorption, expand ability, strength of noodles, as well as color. This research wasconducted at6 different compositions as treatmentwith 3 replications for each treatment. Wetnoodleswasmadeas many as 6 treatments using 1kg of flour pertreatment, with100% of of wheat flour (control) and five othertreatments is by adding sea weed with a ratio of 15%, 20%, 25%, 30%and 35%by weight of wheat flour. Theresults showthat thewet noodleproduced has amoisture content ranging from35,18%to 35,75%for dryandwetnoodle 52,10% to 52,85% for wet noodles cooked, power development wet noodle sranged between 25,71%to33,06%, water absorption 55,80% to 60,36%, breaking noodle power ranging from 5 N to 5,67 N and wetnoodle color significantly in each treatment.Keywords: physical properties, seaweed,wet noodles, wheat flour.
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
STUDI PENGGUNAAN KMnO4 UNTUK MEMPERPANJANG UMUR SIMPAN PISANG MULI Ani Dahli; Agus Haryanto; Diding Suhandy
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 2 (2016)
Publisher : The University of Lampung

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Abstract

The purpose of this research is to investigate the influence of KMn Asoxidizingethylene and to evaluate theeffective of KMn to extend the shelf life of bananas. This research was conductedusing a single treatment with fourlevels of giving mass that is 1 g, 5g, 10g, and a control without KMn, with ranges of banana’s weight was 400g.The result of the research showing that KMnasan oxidizingethylenebythe carrierfroma mixture of clayandricehusk ashin the storage ofbananas has positive influencein the process ofstorage. The most effective treatment is5 gram satseven days of shelf life and KMn which is placed beside the material is not effectively used because itcan not completely absorbethylene.Keywords : KMnO4, banana, ethylene, clay, shelf life.
PRODUKSI BIOGAS DARI CAMPURAN KOTORAN SAPI DENGAN RUMPUT GAJAH (Pennisetum Purpureum) Afrian, Chandra; Haryanto, Agus; Hasanudin, Udin; Zulkarnain, Iskandar
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 1 (2017)
Publisher : The University of Lampung

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Abstract

Penelitian ini bertujuan untuk mengetahui produksi biogas dari campuran rumput gajah dan kotoran sapi.  Rumput gajah (25 kg), diperoleh dari petani di Gedong Tataan (Pesawaran) dan berumur 2 bulan saat dipotong, dicacah dengan panjang maksimum 5 cm. Kotoran sapi segar (25 kg) diambil dari Laboratorium di Jurusan Peternakan, Universitas Lampung diencerkan dengan air pada tiga level, yaitu 50 ℓ (P1), 75 ℓ (P2), dan 100 ℓ (P3). Rumput gajah dicampur dengan kotoran sapi dan diaduk rata. Campuran dimasukkan ke dalam digester batch dari drum plastik dengan volume 220 liter. Untuk kontrol hanya digunakan 25 kg kotoran sapi yang diencerkan dengan 25 l air. Semua perlakukan dilakukan dengan dua ulangan. Parameter yang diamati pada penelitian ini meliputi temperatur harian, pH awal dan akhir substrat, kandungan TS dan VS, volume biogas, produktivitas biogas dan komposisi biogas.  Hasil penelitian menunjukan bahwa nilai pH awal semua perlakuan berada pada kisaran normal yaitu 7,73, 8,08, 8,00, 7,20 berturut-turut untuk P1, P2, P3 dan kontrol; sedangkan pH akhir berturut-turut adalah 4,50, 4,62, 6,82, 7,30. Suhu harian rata-rata hampir sama untuk semua perlakuan yaitu 33,15 oC, 29,60 oC, 31,17 oC, dan 30,23 oC. Total dari produksi biogas adalah 439,42 l, 353,02 l, 524.32 l dan 519,27 l berturut-turut untuk P1, P2, P3, dan kontrol dengan produktivitas biogas secara berurutan adalah 42.20 ℓ/kgTS, 33.91 ℓ/kgTS, 50.38 ℓ/kgTS, 72.42 ℓ/kgTS dan produktivitas metana 6,85ℓ/kgVS, 13,38ℓ/kgVS, 69,62ℓ/kgVS dan 102,86ℓ/kgVS.Kata kunci : Biogas, kotoran sapi, rumput gajah, batch, produktivitas
UJI KINERJA ALAT PENGERING TIPE RAK PADA PENGERINGAN CHIP SUKUN MENGGUNAKAN ENERGI LISTRIK Suhendar Edi; Tamrin Tamrin; Dwi Dian Novita
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 2 (2017)
Publisher : The University of Lampung

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Abstract

Pengeringan adalah proses pengeluaran atau pemisahan air dari bahan dalam jumlah yang relatif kecil dengan menggunakan energi panas.  Pengeringan chip sukun merupakan proses penting dalam pembuatan tepung sukun.  Dengan pengeringan chip sukun yang optimal maka dapat dihasilkan produk tepung yang baik.  Tujuan dari penelitian ini adalah menguji kinerja alat pengering tipe rak untuk pengeringan chip sukun menggunakan energi listrik. Kadar air akhir rata - rata terendah tercapai pada pengeringan menggunakan energi listrik dengan tebal irisan 1 - 2,9 mm adalah 9,66% dengan lama pengeringan selama 13 jam.  Kadar air akhir rata - rata pada pengeringan menggunakan energi listrik dengan tebal irisan 3 - 4,9 mm adalah 10,48% dengan lama pengeringan 15 jam.  Kadar air akhir rata - rata pada pengeringan menggunakan energi listrik dengan tebal irisan 5 - 6,9 mm sebesar 10,37% dengan lama pengeringan 18 jam.  Efisiensi pengeringan menggunakan energi listrik dengan tebal irisan 1 - 2,9 mm adalah sebesar 28,59 %, pengeringan menggunakan energi listrik dengan tebal irisan 3 - 4,9 mm sebesar 50,79 %, dan pada pengeringan menggunakan energi listrik dengan tebal irisan 5 - 6,9 mm adalah sebesar 62,93 %.  Laju pengeringan pada pengeringan menggunakan energi listrik dengan tebal irisan 1 - 2,9 mm adalah sebesar 0,259 kgH2O/jam, pengeringan menggunakan energi listrik dengan tebal irisan 3 - 4,9 mm sebesar 0,448 kgH2O/jam, dan pengeringan menggunakan energi listrik dengan tebal irisan 5 - 6,9 mm sebesar 0,566 kgH2O/jam Kata kunci : Pengeringan; pengeringan tipe rak; sukun
PHYSICAL PROPERTIES OF SWEET POTATO (NATIVE GISTING TANGGAMUS AND JATI AGUNG LAMPUNG SELATAN ON TWO STORAGE METHOD Anisa Narullita; Sri Waluyo; Dwi Dian Novita
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 3 (2013)
Publisher : The University of Lampung

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Abstract

The objective of this research was to observe the physical properties of two native of sweet potatoes (Ipomoea batatas) stored at two different conditions: temperature of 30 -32 °C with RH 58 – 70 % and temperature of 25 – 26 °C with RH 80 - 95 %. The two native of sweet potatoes used as sample were Gisting, harvested at 6 - 7 months, and Marga, harvested at 3 - 4 months. Parameters measured periodically during 8-week storage are weight loss, water content, number and length of prune, and the total soluble solid. The results showed that the storage temperature and RH are relatively stable during observation. During storage at temperature of 25 - 26 oC and RH 85 – 90 %, the weight loss was minimized and the total soluble solid increated sligtly for both native sweet potatoes. The decreasing water content during storage is not significantly different between Gisting and Marga. The increasing in number and length of prune was followed by the gain of weight loss. Gisting has longer storage time compared to Marga based on the standard of weight loss. Keywords:Sweet potato, physical properties, temperature, RH

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