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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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Kinerja Alat Kondensasi Uap Air Laut Untuk Mendapatkan Air Murni Tamrin Tamrin; Rivaldo Rivaldo; Warji Warji
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 4 (2021): Desember
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i4.425-431

Abstract

Testing of a greenhouse model condensation machine to purify the sea water needs to be developed to obtain fresh water. The purpose of this research is to transform seawater using solar energy by using the greenhouse effect principle This research uses testing machine performance to get pure water potential from sea water deselination. The test result of this machine has been able to vaporize seawater in one day ranging from 421 ml-814 ml, while water that can be harvested in one day ranges from 97.5 ml – 152.5 ml. The energy efficiency gained in this machine ranged from 21.22%-46.63%, while the efficiency of the evaporation result of this machine obtained the value ranged from 18.73%-24.85%. This machine has been able to convert seawater into fresh water by using the principle of greenhouse effect but still not able to work optimally.Keywords: fresh water, greenhouse effects, seawater
Penerapan IoT dalam Sistem Otomatisasi Kontrol Suhu, Kelembaban, dan Tingkat Keasaman Hidroponik Mohammad Ridwan; Kristine Monita Sari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 4 (2021): Desember
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i4.481-487

Abstract

The growing population in Indonesia and the narrowing of agricultural land have the potential to cause a decline in agricultural production and scarcity of food sources in the future. Hydroponics is a pattern of cultivation with water media with important parameters including the quantity of nutrients provided, the level of acidity and the availability of water that functions as a nutrient solvent medium for plants. Difficulty in monitoring and not having much time to control these parameters is a concentration that must be investigated. This study aims to develop a monitoring and control system for hydroponic plants automatically based on the Internet of Things (IOT). The research was carried out by modeling a control device consisting of a microcontroller, temperature sensor, pH sensor, and also a wifi device that was integrated with the Blink Library as a receiving system for parameter monitoring results. The test uses the blackbox method to test the performance of the system which gets the results of the component automation test (WLS and Relay) with 100% functioning, while the temperature and humidity test has an error value of 4.81% and 5.37% with DHT11, and the test pH (acidity level) in 6.08 buffer solution obtained an average result of 6.68 with an error value of 1.8%. Keywords: Internet of Things, hydroponics, hydroponic automation, pH sensor, temperature humidity sensor
Pengaruh Geometri Gerigi dan Kecepatan Putar Terhadap Kinerja Mesin Parut Sagu Tipe Silinder Darma Darma; Reniana Reniana; Budi Santoso; Jhonson Waromi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 3 (2021): September
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i3.413-424

Abstract

Sago rasping machine or sago rasper is the most commonly used in sago processing both for small and large scale. It function is to reduce the size or to disintegrate sago pith into smaller particle.  By doing so, the starch contained in the pith can be separated in the subsequent process.  The amount of starch resulted depend on the size of rasped pith.  The smaller the pith is rasped the higher the starch can be extracted.  The purpose of this research was to test the effect of teeth geometrical shape and cylinder rotation speed on performance of sago rasping machine. There are four type of teeth geometrical shape namely cylinder, pyramid, screw, and cube and three levels of cylinder rotation speed they are 1500 rpm, 2000 rpm and 2500 rpm were tested. Results showed that the rasping capacity was affected significantly by the two single factors as well as its interaction of teeth geometrical shape and cylinder rotation speed. Similarly, starch yield and starch losses in waste were significantly affected by teeth geometrical shape.  Meanwhile, starch yield and starch losses in waste were not affected significantly by cylinder rotation speed and the interaction of the two factors. The best performance was resulted at the treatment of teeth geometrical shape of screw with the speed of cylinder rotation 2500 rpm.  The  performances at the treatment were: (a) rasping capacity was 918 kg/h, (b) starch yield was 48%, (wb), (c) starch loss in waste was15.1%.Keywords:  cylinder type, rasping performance, sago rasping machine, teeth geometry 
Kajian Karakteristik Proses Pengomposan Limbah Tanaman Jagung yang Diberi Tambahan Kipahit dan Pupuk Kandang Sapi Sophia Dwiratna; Edy Suryadi; Dwi Rustam Kendarto; Kharistya Amaru; Wahyu Kristian Sugandi; Nur Ilham Tri Hartono
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 4 (2021): Desember
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i4.432-439

Abstract

Corn waste, tithonia and cattle manure are three materials that have different characteristics. These charactersitics differences if used together in the composting process will  complement each other and potentially produce good compost. This research was conducted to find out how the composting process characteristics by utilizing the three raw materials with different characteristics in a composting process. The composting process was carried out using a berkeley method which was stacked with a layered bioreactor. The decomposition process that occurs involving decompisted bacteria, so the composting process runs aerobically. Aerobic composting  corn waste with the addition of tithonia and cattle manure finished in about 4-5 weeks to become a mature compost. The quality of the compost produced is quite good because the content contained in compost fulfills most of the quality standards regulated in SNI 7763: 2018. The addition of tithonia and cattle manure has a positive impact in the process of composting corn plants in terms of duration and good compost. Key words : aerobic, cattle manure, composting, corn waste, tithonia
Perbandingan Kualitas Fermentasi Biji Kakao dengan Penambahan Kultur Campur dan Kultur Tunggal Lactobacillus brevis Rannes Ran Nes; Andree Wijaya Setiawan; Yoga Aji Handoko
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 4 (2021): Desember
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i4.537-547

Abstract

Cocoa beans are one of the plants whose processing process is through fermentation to get quality cocoa beans. The purpose of this study was to determine the quality of fermented cocoa beans with the addition of mixed cultures of Saccharomyces cereviseae, Lactobacillus plantarum, Lactobacillus fermentum, Acetobacter orientalis, Acetobacter tropicalis, and single culture of Lactobacillus brevis and determine the best quality of fermented cocoa beans between mixed culture and single culture of Lactobacillus brevis. This study used a randomized block design with 7 treatments and 4 replications. Each treatment was carried out by adding a single culture and mixed culture in the logarithmic growth phase with a culture concentration of 5%, 10%, and 15%, and as a control, fermentation was conditioned to occur naturally. Observation parameters are pH, temperature, water content, yield, total fat content, total sugar content, lactic acid content, cut test, and organoleptic. The results of the fermentation showed that a good quality was obtained in the P5 treatment (addition of 10% mixed culture) which was perfectly fermented 94% and entered the quality class 1 of SNI 2323:2008. Keywords: cocoa, fermentation, mixed culture, single culture, Lactobacillus brevis
TEKNIK PENGENDALIAN SERANGGA HAMA WALANG SANGIT (Leptocorisa oratorius) MELALUI PENYEMPROTAN LARUTAN BEUVERIA BASSIANA UNTUK TANAMAN PADI Mareli Telaumbanua; Ristanti Ristanti; Elhamida Rezkia Amien; Agus Haryanto; Winda Rahmawati
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 4 (2020): Desember 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v9i4.374-382

Abstract

Serangga hama walang sangit merupakan salah satu faktor kegagalan dalam budidaya tanaman padi. Untuk mencegah peningkatan serangan pada tanaman padi, dibutuhkan instektisida alami yang mampu meningkatkan mortalitas walang sangit. Tujuan penelitian ini adalah meningkatkan mortalitas serangga hama walang sangit melalui pemberian agen hayati larutan Beuveria bassiana pada berbagai taraf konsentrasi. Larutan Beuveria bassiana disempotkan pada walang sangit di dalam sungkup jaring pada rumpun tanaman padi. Dosis yang diberikan antara ekstrak beuveria bassiana dengan air menggunakan perbandingan 2 ml/L, 5 ml/L, 8 ml/L, dan 10 ml/L. Hasil penelitian menunjukkan dosis terbaik untuk pengendalian hama walang sangit pada tanaman  padi adalah 10 ml larutan beuveria bassiana per liter air. Hal ini ditunjukkan dari mortalitas walang sangit tertinggi yaitu 76,92 % selama 12 hari pengamatan. Pada dosis 10ml/L telah menunjukkan perubahan fisik pada serangga hama yang telah mati. Cendawan beuveria bassiana muncul di seluruh jaringan tubuh walang sangit yang telah mati. Pertumbuhan cendawan mulai tampak menyelimuti serangga hama yaitu hari ke 8 menggunakan dosis 8  ml/L air dan 10 ml/L air. Di samping itu, dosis yang menunjukkan mortalitas terendah pada walang sangit adalah 2 ml larutan beuveria bassiana per liter air. Mortalitas walang sangit pada dosis ini adalah 28,57 % selama 12 hari pengamatan. Kata Kunci: agen hayati, larutan beuveria bassiana, pengendalian hama, serangga hama walang sangit, tanaman padi
PENGAMATAN KUALITAS CPO PADA STORAGE TANK DENGAN PENAMBAHAN SISTEM PENGADUKAN PADA BERBAGAI VARIASI TEMPERATUR Rengga Arnalis Renjani; Riki Sugiarto; Nuraeni Dwi Dharmawati
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 4 (2020): Desember 2020
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v9i4.343-352

Abstract

Penurunan mutu Crude Palm Oil (CPO) dapat terjadi selama penyimpanan di storage tank dan ketika proses pengiriman, oleh adanya reaksi oksidasi dan reaksi hidrolisis sehingga menurunkan suhu CPO selama penyimpanan. Suhu dipenyimpanan CPO yang tidak terkontrol dengan baik, sering kali menjadi penyebab terjadinya penurunan mutu CPO di dalam storage tank. Penelitian ini bertujuan untuk menganalisis kualitas CPO produksi selama penyimpanan pada berbagai variasi suhu dan pengadukan. Parameter yang diamati dan dianalisis dari proses penyimpanan CPO di storage tank terdiri dari: waktu penyimpanan, variasi suhu, dan penambahan sistem pengaduk atau agitator. Pengambilan sampel dilakukan sebanyak dua kali sehari, sedangkan parameter yang diamati yaitu Asam Lemak Bebas (ALB), kadar kotoran, dan  kadar air. Hasil dari penelitian ini menunjukkan bahwa penggunaan sistem pengadukan dapat memperlambat kenaikan ALB dibandingkan dengan sistem penyimpanan konvensional. Kenaikan kandungan ALB CPO pada penyimpanan konvensional sebesar 0,13% per hari, sedangkan ALB sistem penyimpanan dengan pengadukan hanya menaikkan ALB CPO sebesar 0,05% per hari. Berdasarkan penelitian ini temperatur yang optimum untuk mempertahankan kualitas CPO adalah 50 oC. Kata Kunci: agitator, asam lemak bebas, crude palm oil, storage tank, temperatur
EVALUASI DATA CLIMATE HAZARDS GROUP INFRARED PRECIPITATION WITH STATION (CHIRPS) DENGAN DATA PEMBANDING AUTOMATIC WEATHER STATIONS (AWS) DALAM MENGESTIMASI CURAH HUJAN HARIAN DI PROVINSI PAPUA BARAT Budiyono Budiyono; Arif Faisol
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 10, No 1 (2021): Maret
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v10i1.64-72

Abstract

This research aims to evaluate the CHIRPS data in estimating daily rainfall in West Papua compared with automatic weather stations (AWS) data recording. The data used in this research are daily CHIRPS data and AWS daily data recording 1996 to 2020 from AWS Rendani–Manokwari, AWS Jefman–Raja Ampat, AWS Torea–Fakfak, and AWS Kaimana–Kaimana. CHIRPS data were evaluated using the Point to Pixel method based on numerical and categorical parameters i.e., root mean square error (RMSE), mean error (ME), mean absolute error (MAE), Pearson correlation (r), probability of detection (POD), critical success index (CSI), and T-test. The research showed that CHIRPS had a significant difference to AWS data in estimating daily rainfall in West Papua based on a T-test. However CHIRPS has a moderate accuracy in estimating daily rainfall in West Papua with RMSE = 8.59 mm, ME=2.75 mm, and MAE = 5.15 mm and had a moderate positive correlation with AWS data with r= 0.43. Besides, CHIRPS has good accuracy in detecting rain events in West Papua indicated by a POD = 0.72 and CSI = 0.43. Therefore, CHIRPS data can be used as an alternative solution for providing rainfall data in West Papua.   Keywords:  satellite observation, rainfall predictor, point to pixel 
Cover Vol 11 no.2 June 2022 Agus Haryanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.%p

Abstract

Power Tiller Requirement for Cassava Cultivation at Estate Scale Rufiani Nadzirah; Agus Dharmawan; Siswoyo Soekarno; Indarto Indarto; Tasliman Tasliman
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 11, No 2 (2022): June
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v11i2.292-303

Abstract

Indonesia's food needs continue to increase along with population growth. Land development for supporting the cassava food estate is one of the priority programs of the central and regional governments. The purpose of this study was aimed at determining the need for power tiller for land management based on land area. This research was carried out at the planned location of the cassava plantation in Gunung Mas Regency, Central Kalimantan in 2020. The data on the land area planned was determined from a topographic map, while the tractor needs were obtained from the calculation of field capacity. The area of land suitable for cassava cultivation is 1227.57 ha which is divided into 25 blocks. The basis for the number of tractors as power tiller needed is determined from the time of tillage work so that it requires working capacity variables, including data on land area, work speed, and width of the plow implement. The plow studied in this study used 2, 3, 4, and 5 blades of disc plows. The need for a tractor with a 5-blade disc plow is 2 tractors that work fully and take turns cultivating an area of 1227.57 ha in the span of one cassava cultivation period (7-8 months). If the disc plow used is less than five blades, it will affect the working width of tillage, so the work time will be longer and the need for power tiller will increase. Keywords:   Cassava, Disk Plow, Food Estate, Power Tiller, Tractor

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