cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota bandar lampung,
Lampung
INDONESIA
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 7 Documents
 1 
Search results for , issue "Vol 1, No 1 (2012)" : 7 Documents clear
Performance Test Hammer Mill With Corn Feed Corncob Octa Rahmadian; Sugeng Triyono; Warji Warji
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (725.829 KB)

Abstract

Corn cob is one abundant agricultural waste and potentially viable for animal feed.  Objective of this research was to test a hammer mill to crush the corn cob.  The study was made in two different rotational speeds, 800 rpm and 1400 rpm. A perforated screen (underneath the rotating hammer drum) with 1 cm hole size was used.  The test was conducted in three replications and each replication used 5 kg corn cob.  Variables observed included uniformity of grain sizes of the product and machine capacity.  The expected grain sizes ranged 3 to 7 mm.  The results showed that this machine performed better under 1400 rpm than under 800 rpm.  With 1400 rpm, the machine produced the expected grain sizes of the product about 45,57% by weight, and had a capacity about 15,62 kg/hour. Keywords: Corn cob, Hammer mill, Capacity, Energi consumtion.
Analysis Of Soil Water Distribution By Low-Pressure Drip Irrigation Dinna Afriyana; Ahmad Tusi; Oktafri -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (73.876 KB) | DOI: 10.23960/jtep-l.v1i1.%p

Abstract

This study was carried out to determine the effect of low-pressure surface and sub-surface drip irrigation to soil wetting distribution pattern and emission uniformity.  The experiment was conducted with gravity drip irrigation system and modified point sources drip-line with polyester (PE) cloth.  The PE covered the drip-line with 1, 2, and layer and operation head was conducted by 0.5 m, 0.75 m, and 1 m. Evaluation of trickle irrigation system design were conducted by two treatment, surface and sub-surface, and slope of surface land were 0%, +2% and -2%.    The results indicated that the experiment using 3 layers of PE cover was better with the highest coefficient of water distribution uniformity with the following specifications: q= 1.31/hour with 1m head operation. The uniformity of distribution in sub-unit of this design was 74.6%, the average of diameter of soil surface wetting was 34 cm, and water content ranged from 20% - 54%. The average of sub-surface soil wetting was 31 cm, with average water content ranging from 24% - 30% in 6,5 hours application of irrigation. These ranges were still between the field capacity and permanent wilting point from the soil sample in location of study. Keywords: Low-pressure drip irrigation, polyester cloth, soil wetting distribution, emission uniformity.
Dissolved Phosphorus Of Phosphate Stones With Ultrasonic Waves As An Efforts Rahmat Ibnu Mas'ud; Sugeng Triyono; Sri Waluyo; Tamrin -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.766 KB)

Abstract

Fertilizer is a material that can add nutrients to soil.  Phosphate is one of essential elements of fertilizer for plants. Ultrasonic waves can potentially be used as a method to dissolve phosphorus from phosphate stone, by means of immersion in water and gived of ultrasonic waves.  The aim of this study was to analyze the P content from phosphate stone that was dissolved in water and the excited by ultrasonic waves.  The tests were the concentration of phosphate in water of 30, 60, and 90%, and the duration of ultrasonic wave (60 kHz) of 15, 30, and 60 minutes.  The parameters observed were the levels of dissolved P (P2O5), pH value, and specific energy. The samples were analyzed, namely liquid and solid samples were separated after ultrasonic vibrate. The results of the analysis of the highest levels of soluble P from liquid samples are at 90% concentration, treatment time-vibrate 15 minutes, that is equal to 0.0415 mg/l, whereas the treatment of solid samples at concentrations of 60% , within 15 minutes, amounting to 1.38%.  The measurement results show the solution pH is neutral phosphate after vibrated tend to alkaline with pH values between 7 – 8. Sample concentration of 60% treatment, 15 minutes and 90% concentration, treatment time of 15 minutes is the most efficient, because it uses only the smallest specific energy is 0.15 J/mg and 0.1 J/mg, can produce high levels of dissolved P. Keywords: fertilizer, phosphate stones, ultrasonic, P dissolved.
Analysis Of Water Balance Of Corn (Zea Mays) In Bandar Lampung Muamar, Muamar; Triyomo, Sugeng; Tusi, Ahmad; Rosadi, Bustomi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (79.622 KB)

Abstract

Indonesia needs of the community against corn continues to increase with increasing population growth as well. One effort to support the increased productivity of corn agribusiness development program is the provision of adequate water for plant growth. This aims of the research were (1) calculate the amount of corn crop water requirements, (2) quantify the potential of rainwater that can be utilized and stored, (3) analyze the potential evapotranspiration, percolation and runoff rate, (4) to calculate Kc plants. Field experiment was conducted at the Integrated Field Laboratory College of Agriculture, University of Lampung from 26 August to 4 December 2011. Field observations carried out on two experimental treatment with four repettition, the treatment were plots with plastic liner (plot A) and without plastic liner (plot B) where are each equipped with a water storage pond at the downstream. The results showed that (1) The consumptive use (ETc) during the study water requirements of corn is 614,3 mm. (2) Total runoff that occurs on a plot with plastic liner adn without plastic liner of land is 58,96 mm and 37,24 mm. (3) Percolation that occurred during the study in the plot of land without plastic liner is 40,58 mm. (4) The corn crop coefficient (Kc) on average in the early developmental stages, vegetative stage, stage of flowering and seed formation, and aging stage were 1,26; 1,72; 1,66 and 1,02. (5) the water productivity on plot A was 1,88 kg/m3 while on the plot B was 2,48 kg/m3. Keywords: water balance, corn, evapotranspiration, percolation, surface runoff.
Modification of Rice Thresher-Hammer Thresher Type Ahmad Harbi; Tamrin -; Warji -; Budianto Lanya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (671.912 KB)

Abstract

The thresher rice has developed in previous research is instrument thresher rice type hammer thresher. But the threshing not going well, Where rice stalk is still difficult to get out of the thresher. The objective of this research is to modify machine  type paddy thresher hammer . Modification is conducted by adding director channel in upper wall of threshing chamber and to change straw exiting channel near the feeder with size of 15 cm width and 19 cm height. By this method, paddy straw is expected to exit from threshing chamber and threshing process can run smoothly. Methods used is Modification tools, testing modification result, observation and data collection. Observations are made to percentages of threshed paddy grain, percentage of unthreshed paddy grain, good threshed paddy grain, percentage of damaged threshed paddy grain, threshing duration, and working capacity of the machine per hour. Keywords: Thresher rice, thresher rice type hammer, modify machine thresher.
THE DESIGN OF SOLAR DRYING TOOL WITH A FLAT CHIP COLLECTORS Hizami Ch Anwar; Budianto Lanya; Agus Haryanto; Tamrin -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1887.506 KB)

Abstract

Rack solar drier is one example of useful utilization of solar energy, but has not widely used by the public, yet.  Using this solar drier we can dry our fish and agricultural products without fossil fuels. Solar dryer works by absorbing sunlight by four blackened flat collectors, and the heat generated by the collectors was transferred by air flow to the plenum chamber and drying chamber consisting of shelves.  The solar dryer used in this experiment has dimension of 4,66 m length by 4,66 m width and by 1,95 m height. The dryer has a capacity of around 50 kg materials that can be dried during 20 hours.  Based on our testing it was observed that the decrease in water level was not uniform among the shelves position. The final moisture content was highest in the top shelves, followed by middle shelves and bottom shelves.  The average final moisture content was 16,95%.  The time required for drying was 20 hours, with an average moisture load of 10,46 kg H2O.  The average drying rate was 0,5228 kg H2O/jam or 2,10% wet basis per hour.  In this experiment intensity of solar radiation was measured to be 634,88 Watt/m2, and electric power of 12,83 Watt was used to run small fan in order to exhaust moist air.  The average energy used (Qe) for drying banana chips was 37124,58 kJ per each drying process and the average energy input used during the drying process (Qrs) was 147.227,87 kJ. This meant that average drying efficiency was 27,07%.  Technically, it can be concluded that solar dryer can be used as an alternative to drying agricultural commodities.  Keywords: moisture content, banana chip, solar drier, flat collectors, solar intensity.
Evaluation Of Tertiary Levels Irrigation Performance Metro City Technical Unit Of Irrigation Sekampung Batanghari Irrigation Areas Nur Zun Viqhy; R.A Bustomi Rosadi; Nugroho Haryono; oktafri -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 1, No 1 (2012)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.529 KB)

Abstract

This study aimed to determine the effectiveness of performance irrigation at tertiary level in technical unit irrigation Metro city of Sekampung Batanghari irrigation areas.  The study was conducted at tertiary level irrigation in sekampung Batanghari irrigation areas on KBH 5 Ki 2 (upstream), KBH 6 Ki (middle), and KBH 7A Ki (downstream). The instrument that used in this research were current meter, stopwatch, Sekampung Batanghari irrigation areas map, and secondary of data.  The study was conducted using secondary data collection methods and measurement directly on the field.  The result showed that (1) the performance of irrigation in UPT Metro city irrigation were less effective that  showed from the value of the irrigation complexity is quite simple, (2) the efficiency of water delivery at tertiary level irrigation in metro city that classified as unoptimal, there is 81,23 % and still under the preliminary draft, (3) the overall irrigation performance in the tertiary level of UPT Metro city still low. Keywords: effectiveness of performance, irrigation, Metro city, Sekampung Batanghari

Page 1 of 1 | Total Record : 7

 1 

Filter by Year

2012 2012


Reset
Filter By Issues
All Issue Vol 13, No 2 (2024): June 2024 Vol 13, No 1 (2024): March 2024 Vol 12, No 4 (2023): December 2023 Vol 12, No 3 (2023): September 2023 Vol 12, No 2 (2023): June 2023 Vol 12, No 1 (2023): March 2023 Vol 11, No 4 (2022): Desember 2022 Vol 11, No 3 (2022): September 2022 Vol 11, No 2 (2022): June Vol 11, No 1 (2022): March Vol 10, No 4 (2021): Desember Vol 10, No 3 (2021): September Vol 10, No 2 (2021): Juni Vol 10, No 1 (2021): Maret Vol 9, No 4 (2020): Desember 2020 Vol 9, No 3 (2020): September 2020 Vol 9, No 2 (2020): Juni 2020 Vol 9, No 1 (2020): Maret 2020 Vol 8, No 4 (2019): Desember Vol 8, No 3 (2019): September Vol 8, No 2 (2019): Juni Vol 8, No 1 (2019): MARET Vol 7, No 3 (2018): Desember Vol 7, No 2 (2018): Agustus Vol 7, No 1 (2018): April Vol 6, No 3 (2017) Vol 6, No 2 (2017) Vol 6, No 1 (2017) Vol 5, No 3 (2016) Vol 5, No 2 (2016) Vol 5, No 1 (2016) Vol 4, No 4 (2015): Special Edition Vol 4, No 3 (2015) Vol 4, No 3 (2015) Vol 4, No 2 (2015) Vol 4, No 1 (2015) Vol 4, No 1 (2015) Vol 3, No 3 (2014) Vol 3, No 3 (2014) Vol 3, No 2 (2014) Vol 3, No 2 (2014) Vol 3, No 1 (2014) Vol 2, No 3 (2013) Vol 2, No 2 (2013) Vol 2, No 2 (2013) Vol 2, No 1 (2013) Vol 1, No 1 (2012) More Issue