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Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering)

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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 1,078 Documents

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PENGARUH ARAH DAN KETEBALAN IRISAN KUNYIT TERHADAP SIFAT FISIK TEPUNG KUNYIT YANG DIHASILKAN Priastuti, Rita Catur; -, Tamrin; Suhandy, Diding
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 5, No 2 (2016)
Publisher : The University of Lampung

The purpose of this research was to evaluate the influence of the direction and thickness of turmeric slice on thephysical powder of turmeric powder. The treatments were two different of treatments cut vertical slices (cut fiber),horizontal (unidirectional fibers) and cut with three thicknesses (0.3 cm, 0.6 cm, and 0.9 cm). The measuredparameter were water content, angle of repose, fineness modulus, uniformity index, grain yield, bulk density, andthe flour color. The water content obtained wasnâ€™t reached the Indonesia Standard Nasional which is still below12%, while the angle of repose has been good angle with the value 31Â°-41Â°. The fineness modulus as much as4.02% - 4.66%. Uniformity index grains with rough category has the highest amount than with the percentageof medium and smooth category, and the medium category on average direction of a cut fiber have percentagegreater than the unidirectional fiber although the difference is only a little. The percentage is still low grain yield<50%. Bulk density values obtained in this research ranged between 354.89 - 386.90 kg / m 3 . The resulting colorwasnâ€™t much different and still in the desired category was yellow-orange. Different parameters affect the slicethickness uniformity index and grain yield of turmeric. The thicker slices of turmeric, then the index uniformityand yield of turmeric powder granules produced higher. Different directions slices and slice thickness differencedoes not affect the water content, angle of repose, fineness modulus, bulk density, and color of turmeric powder.Keywords: turmeric powder, slicesdirection, slice thickness, water content , angle of repose, bulk density.

THE PRODUCTION AND CHARACTERISTICS TEST OF SYNTHETIC RICE MADE OF MAIZE FLOUR Arif Dwi Santoso; warji -; Dwi Dian Novita; Tamrin -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 1 (2013)
Publisher : The University of Lampung

Synthetic rice made of maize flour has a great opportunity to be developed as a staple food. Peopleused to consume synthetic rice, but only limited studies reported about the preferred characteristic of synthetic rice. The purpose of this study is 1) to produce and examine the characteristic of synthetic rice including moisture content, particle size, storage time and steam duration, and 2) toobtaine the preferred sensory level of synthetic rice based on aroma, texture, flavor and color.The procedure was startedbymakingthe maize flourto produce synthetic rice using a granulator machine. The granules was then steamed and dried under the sun light. Seventype of synthetic rice was used in this research, namely pure maize rice (100% maize flour), three mixed synthetic rice of maize flour and wheat flour, and three mixed synthetic riceofmaize flour and tapioca flour withthree different ratio 95:5, 85:75, and 75:25.). The results showed that the water content of synthetic rice was measured between 10.37 to 13.79%. While the steaming timewas reached around 46 to 68 minutes. The rice wasable to be stored about 24-26 hour. The organoleptic testsshowed that the most favorite synthetic rice was a mixture maize rice of 95% maize flour and 5% of tapioca flour for all level preference of the sensory test. Keywords: Maize flour, rice synthetic, granulator, organoleptic.

APLIKASI IRIGASI DEFISIT PADA FASE PEMBUNGAAN TANAMAN PADI GOGO (Oryza sativa L.) VARIETAS INPAGO 9 Febrianto Cahya Yosef; RA Bustomi Rosadi; Ridwan Ridwan
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 (384.66 KB)

Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi irigasi defisit pada fase pembungaan tanaman padi gogo varietas Inpago 9. Penelitian ini dilaksanakan di dalam rumah plastik Laboratoritum Lapang Terpadu Universitas Lampung pada bulan Oktober 2016 sampai dengan bulan Maret 2017. Penelitian ini menggunakan rancangan acak lengkap (RAL) dengan 4 taraf perlakuan, yaitu ID1((0-20)-100)% ATT, ID2((0-20)-80)% ATT, ID3((0-20)-60)% ATT, ID4((0-20)-40)% ATT, dan ulangan sebanyak 5 kali. Hasil penelitian menunjukan bahwa, aplikasi irigasi defisit pada fase pembungaan berpengaruh terhadap berat berangkasan padi, produksi padi dan produktivitas air tanaman. Berat berangkasan tanaman tertinggi dicapai oleh perlakuan ID4((0-20)-40)% ATT. Produksi padi tertinggi dicapai oleh perlakuan ID1((0-20)-100)% ATT dengan rata-rata produksi sebesar 45,4 g/ ember. Produktivitas air tanaman tertinggi dicapai oleh perlakuan ID1((0-20)-100)% ATT dengan rata-rata produktivitas air tanaman sebesar 1,01 g/l.Kata Kunci : irigasi defisit, fase pembungaan, padi gogo, dan produktivitas air tanaman

PERFORMANCE OF MACHINES THRESHER SEEDS JOB’S TEARS (Coix Lacryma-Jobi L.) RUBBER ROLL TYPE Juliardi .; Rofandi Hartanto; Warji .; Budianto Lanya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 2, No 3 (2013)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.879 KB)

Job’s tears (Coix lacrhryma jobi L.) was a plant that came from South Asia and East Asia. The distribution of this plant was expanded to Southeast Asia, especially Indonesia. In Indonesia, Job’s tears was found in Sumatra, Java and Kalimantan. Its seeds had many benefits as herbs or plant consumption. Threshing process of this plant was still using a traditional way. This research was purposed to design and test the performance of jali thresher machine type rubber roll. This research was conducted in February 2013 to March 2013 in the Laboratory of Agricultural Engineering, Department of Agricultural Engineering, Faculty of Agriculture, University of Lampung. This research procedure included several stages: design, assembly, testing results, and data analysis stage. Observations were made for machine capacity per hour, percentage of threshed seeds, and percentage of good or damaged threshed seeds. This research used 3 cylinder rotational speeds: 50 RPM, 38 RPM and 30 RPM. Results of this research indicated that this machine threshed seeds by 47 kg/ hour. Keywords: Job’s tears, threshing, and Rubber Roll

THE EFFECT OF STORAGE MEDIA (PLASTIC SEED) TO KEEP LONG FRESH CARROT (Daucus carota L.) Fendriansah - -
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 (308.328 KB)

Carrot is commodity that easy damage at the time of production until it gets to the consumer. Carrots at room temperature only lasted for four days. Storage technologies are needed by farmers to maintain quality carrots carrots, and can decrease respiration and evaporation of water. Storage of carrots can be done with a controlled atmosphere, atmospheric termodifkasi, and traditional media storage using plastic seed by providing cooling water outside the storage container. This research aims to determine the effect of the storage media to keep long fresh carrot (Daucus carota L.). The research method is done by several methods, namely the upper of cooling water outside of storage container in below, equal, and on the surface of plastic seed. The results showed plastic seed with an average shelf life of 20 days.Keywords: carrots, cooling water, plastic seed and shelf life.

THE INFLUENCE OF DEFICIT EVAPOTRANSPIRATION TOWARD PLANTS GROWTH AND WATER USE EFFICIENCY OF THREE SOYBEAN VARIETIES (Glycine max (L.) Merril) Febriana Nivoliya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 3 (2014)
Publisher : The University of Lampung

The objective of this research is to find out the influence of evapotranspiration deficit toward plants growth andwater use efficiency of three soybean varieties (Glycine max. (L) Merr.). This research was conducted in thegreenhouse, integrated laboratory of Agriculture Faculty, Lampung University on November, 2013 to January,2014. This research used a complity randomized design consisting two treatment factors with three timesrepetition. The fisrt factor was evapotranspiration deficit (E) consisting of E1 (1.0), E2 (0.8), and E3 (0.6), andE4 (0.4). The second factorwas variety (V) consisting of Tanggamus (V1), Kaba (V2), andWillis (V3). The resultof research showedthat evapotranspiration deficit and varietywas significantly differentwhereas the interactionwas not significantly different at all growth components, production andwater use efficiency .The highest resultproductionwasWiliis (V3) and Kaba (V2) on E1 (1.0) 12.33 gr/pot. The highest value ofwater use efficiencywasWillis (V3).

RESPONSE OF GROWTH AND YIELD OF TWO VARIETY OF SOYBEAN (Glycine Max . ( L ) Merrill ) TO AVAILABLE SOIL WATER DEPLETION Panalosa, Dody
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 (645.101 KB)

All this time, efforts to improve soybeanproductivity is still based onthe expansion of planting area (Badan PusatStatistik, 2013), but production is still declining. It is also influenced by the lack of understanding about thecultivation of soybeans and the price is less promising causing farmers are reluctant to plant soybeans. Thisresearch aims to investigate the response of the growth and productionof two varieties of soybean (Glycinemax.(L) Merrill) to some degree of available soil water depletion. This research was conducted at the Laboratory ofIntegrated Courses Faculty of Agriculture, University of Lampung, in May up to August 2014, using factorialdesign in a completely randomized designwith the first factor is depletion of groundwater available (P) which iscomposed of four levels of available soilwater depletion treatment (ATT) is the treatment P1 (0-20%),P2 (0-40%),P3 (0-60%), and P4 (0-80%) and the second factor, namely soybean varieties (V), which consists of varieties V1(Wilis) and V2 (Kaba), with three repetitions. Results were analyzed by F test at LSD further by 5%and 1% byusing Statistix8 Program. The results showed that the effect of the level of available soilwater depletionduring thevegetative stage and generative phase did not significantly affect plant growth and crop yield. The highestproduction yield andWilis varieties Kaba obtained at a rate of 0-40%thinning. Based on these values concludedthat to produce optimal production in both varieties can still bemaintained until the level of depletion of availablesoilwater content to 40%.Keyword : Available SoilWater,Depletions, Generative Phase, Vegetative Phase, Yield.

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)

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; usingÂ microcontroller Arduino Mega accomplished with Zigbee technology connection. The device works based on soil water content.Â 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.Â Each soil sample was mixed with compost by ratio of 5: 1.Â 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 forÂ silt loam, loamy sand, and sandy loam.Â While, validation showed that errors were 0,63%; 0,52%; 0,60% respectively for silt loam, loamy sand, and sandy loam.Â The results also indicated that linear regressions (correlation between voltage and soil water content) turned out to be applicable for specific Soil Texture.Â Therefore, this device may not be used for general soil textures. The result of the test showed that the automatic device could work properly.Â Interval of data transmission was properly done per minute rather than per second.Keywords:Drip Irrigation, Microcontroller, Automatic Control, Soil Water Content.

PENGARUH FRAKSI PENIPISAN (p) AIR TANAH TERSEDIA PADA BERBAGAI FASE TUMBUH TERHADAP PERTUMBUHAN, HASIL DAN EFISIENSI PENGGUNAAN AIR TANAMAN KEDELAI (Glycine max [L] Merr.) Anna Ditia
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 (200.895 KB)

Penelitian bertujuan untuk mengetahui pengaruh fraksi penipisan (p) air tanah tersedia pada berbagai fase tumbuh terhadap pertumbuhan dan efisiensi penggunaan air tanaman kedelai. Penelitian ini dilaksanakan di dalam rumah plastik, laboratorium lapang terpadu, Universitas Lampung pada bulan Oktober 2015 sampai dengan Januari 2016. Penelitian ini menggunakan rancangan Faktorial dalam Acak Lengkap (RAL) dengan 2 faktor perlakuan, yaitu faktor I (Fraksi penipisan air tanah tersedia, p) dan faktor II (fase tumbuh, F). Masing-masing perlakuan terdiri dari 3 taraf, yaitu faktor I terdiri dari P1(0,2), P2(0,4) dan P3(0,6) dari penipisan air tanah tersedia, dan faktor II terdiri dari fase vegetatif aktif (F1), fase pembungaan (F2), dan fase pembentukan polong (F3), dengan ulangan sebanyak 3 kali. Pengukuran evapotranspirasi tanaman acuan dilakukan pada fraksi penipisan 0,2 dari air tanah tersedia dengan menggunakan tanaman rumput. Hasil penelitian menunjukkan bahwa, perlakuan fraksi penipisan (p) air tanah tersedia pada berbagai fase tumbuhtidak berpengaruh terhadap pertumbuhan dan efisiensi penggunaan air tanaman kedelai.Tanaman kedelai pada perlakuan fraksi penipisan (p) air tanah tersedia tidak mengalami cekaman air pada semua perlakuan, karena tanaman sebelum mendekati batas bawah perlakuan segera diberi irigasi dan dikembalikan ke kondisi kapasitas lapang. Produksi tertinggi dengan nilai efisiensi penggunaan air tertinggi dicapai oleh perlakuan fraksi penipisan (0-0,2) air tanah tersedia pada perlakuan fase pembungaan (F2). Tanaman kedelai menghasilkan produksi yang tinggi pada fraksi penipisan 0,4 untuk perlakuan fase pertumbuhan aktif dan fraksi penipisan 0,2 untuk perlakuan fase pembungaan dan fase pengisian polong. Kata Kunci : fraksi penipisan, fase tumbuh, kedelai, dan efisiensi.

ANALISIS EKONOMI DAN NILAI TAMBAH PRODUKSI EMPING JAGUNG DI DESA CIMANGGUNG, KECAMATAN CIMANGGUNG KABUPATEN SUMEDANG Ahmad Thoriq
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 6, No 1 (2017)
Publisher : The University of Lampung

Diversifikasi biji jagung menjadi makanan yang memiliki nilai jual tinggi di Kecamatan Cimanggung dilakukan melalui produksi emping jagung. Namun perlu dilakukan analisis ekonomi dan nilai tambah untuk keberlanjutan usaha. Metode yang digunakan pada penelitian ini analisis ekonomi yang meliputi biaya produksi, harga pokok produksi, titik impas dan kelayakan usaha yang meliputi Net Present value (NPV), benefit cost ratio analysis (BC Rasio), Internal Rate of Return (IRR) dan payback period analysis (PBP) serta analisis nilai tambah. Data dikumpulkan melalui wawancara mendalam dan pengelola usaha emping jagung. Hasil penelitian menunjukkan harga pokok produksi emping jagung siap konsumsi adalah adalah Rp. Rp.17.337 perkg., dengan titik impas produksi 1.606 kg pertahun, BC rasio sebesar 1,99, NPV sebesar Rp.621.028.931 pertahun IRR sebesar 79,38%, PBP selama 2 bulan, nilai tambah sebesar Rp.16.130 per kg dengan rasio 65,29 persen dan keuntungan Rp. 13.081 per kg. Berdasarkan hasil analisis dapat disimpulkan bahwa usaha pengolahan emping jagung siap konsumsi layak.

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