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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 10 Documents
 1 
Search results for , issue "Vol 4, No 1 (2015)" : 10 Documents clear
DESIGN OF AUTOMATIC DRIP IRRIGATION BASED ON CHANGE OF SOIL WATER CONTENT USING ARDUINO NANO MICROCONTROLLER Rendy Pranata
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (804.899 KB) | DOI: 10.23960/jtep-l.v4i1.%p

Abstract

Formerly, most of Indonesian farmers only used a timer in an effort to set up drip irrigation scheduling. Thismethod is less effective in providing irrigation according to crop water requirement because it is only able toarrange the provision of irrigation basedon a predetermined time interval only, so that the excess or lack ofwatercan’t be controlled. This research makes an instrument which is able to overcome these problems, that is bydesigning an automatic control systemonregulating the provision of irrigationwater in drip irrigation by usingamicrocontroller thatworks based onchange of soilwater content. The parameters observed inthis studyare thechange of soilwater content, irrigationflowrate, bulk density of soil, and dropper flowuniformity. This study usesthree types of growingmedium, i.e. sand, red-yellowpodzolic soil, andmix soil with organic nitrofosfat fertilizer.Calibration tests showed a linear function, for sandmedium y = – 0.23x + 46.96 with percent error ± 5.22%, forred-yellowpodzolic soil andmix soilwith organic nitrofosfat fertilizermediumy = – 0.71x + 104.07with percenterror ± 2.92%. The results showed that the automatic control system is able to work well, i.e. turn on the pumpwhen soilwater content drops belowthe criticalwater contentand turnoff the pumpwhen soilwater content risesover the field capacity.
A STUDY ON LATEX DRYING CHARACTERISTICS WITH DIFFERENCE OF THICKNESS USING GREENHOUSE EFFECT DRYER Zulfikar Akbar
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1123.699 KB) | DOI: 10.23960/jtep-l.v4i1.%p

Abstract

Latex just been tapped has a high level ofmoisture content. To be useful for production, latex should be dried toreducewater content. Latex drying by rubber farmers is commonly to do conducted in opened areas for 14 dayswith a very thick size of latex. Therefore, we should be solutions to make latex drying faster. This research, latexdryingwas treatment by using greenhouse effect dryerwith difference of thickness. The aims of this researchwasto find out characteristics of latex drying using dimension of greenhouse effect dryer is 150 x 70 x 120 cm. Latexwas coagulated on containers, with dimension of containers is 40 x 10 x 15 cm. Latex was formed with anequipmentwhich intervals of 2, 1.5, and 1 cmand thenslabwas dried. Result of this research, latexwas driedwithgreenhouse for 9 hour/day for 6 days along. Temperatures of greenhouse effect dryer ranged from30 to 500Cwithrelative humidity of approximately 47%. The treatment with thickness of 2, 1,5 and 1 cm has final moisturecontent respectively were 9.53%, 8.96%, and 5.87%bb, and drying acceleration during drying process were0.3773%, 0.4119%, and 0.4445%w/w / day.Keywords :DryingAcceleration, GrenhouseDryer, Latex,Moisture Content, Thickness
THE EFFECT OF TILLAGE SYSTEM AND HERBICIDE ON SURFACE RUNOFF AND EROSION FOR CASSAVA CROP FIELD IN LABORATORIUM LAPANG TERPADU OF AGRICULTURE FACULTY UNIVERSITY OF LAMPUNG M Khory Andreawan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (626.149 KB)

Abstract

Land degradationis amajor factor indecreasing the productivity of the land. Themostfrequently land degradationoccurred is due to surface runoff and erosion. One of the causes of the surface runoff and erosion is humantreatment.Human treatment of the land can accelerate or reduce surface runoff and erosion. This study aims todetermine the effect of both tillage systems and herbicide on surface runoff and erosion on crop cassava field inlaboratoriumlapang terpaduAgriculture Faculty,University ofLampung.The experimentwas designas a factorialin randomized complete block design with four block. This experiment used multislot devicermethod with size 4x 4meter. Treatment consists of two factorswhich are tillage systemand herbicide. The results of this experimentindicate that tillage system did not affect surface runoff and erosion significantly and herbicide treatmentincrease surface runoff compare to treatment without herbicide, which is 32,8 mm and 24,6 mm, but did notsignificantly affect erosion.Keywords: Tillage,Herbicide,Run off, Erosion
TEST PERFORMANCE OF FORAGE CHOPPER VERTIKAL WONOSARI TYPE I Fadli, Ihwan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.427 KB)

Abstract

This research aimed at testing performance of forage chopper verticalWonosari type I by observation coveringuniformity, capacity ofmachinework, and consumptionfuel. Research located inSumberrejo village, subdistrictof Batanghari, district of Lampung Timur which began in months Juny – Agustus 2014. Themethod usedwas aCompletely Randomized Design (CRD) with two factorial. The first factor is the three engine speeds with levels(800, 1400 and 1800 rpm), while the second factor is combined of feed freshness (fresh, withered a day andwithered twodays). Every treatmentwere repeated three times so the total thereare 27 treatment. Parameter thatwas statistically tested is uniformity of 2 – 5 cmchopped size then continued by F test, LSD 5%and 1%. The resultsshow that the chopped size 2 – 5 cm most be obtained at the speed 1400 rpmfor fresh corn stalks and withereda daywith the 32.19%and 39.69%percentage,while thewithered corn stalks two days using the speed 1800 rpmwith 30.12% percentage. The results of analysis of variance calculation shows that the uniformity of choppedsize 2 – 5 cm was different. The work capacity of themachine at speed of 1400 rpm was 834 kg/hour with the2.17 liters/hour consumption fuel.Keywords:Capacity, Chopper,Chopped size,Fuel consumption,The performance test
DETERMINATION OF LAND TO POND RATIO IN RAIN WATER HARVESTING SYSTEM TO SUPPORT RICE-SOYBEAN CROPPING PATTERN Hadinata, Wira
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.223 KB)

Abstract

The rain water harvesting system consists of a land area cultivated with rice and soybean cropping patternannually, and a rainwater collection pond. Surpluswater (runoff) in raining season is captured and collected inthe pond, and used for irrigation in the following cultivation. The objective of this researchwas to determine theoptimumratio of the landto pond area. This researchwas carriedout in the IntegratedField Laboratory, Facultyof Agriculture, University of Lampung by using data of soil physical properties (water content, field capacity,permanentwilting point, percolation); rice crop coefficient, soybean crop coefficient and climatological data for13 years from1999 to 2011. Datawas processed using asimulation program(Visual Simulation)presented inthegraphical form. The results showed that the rainwater potential that can be utilized as an alternative irrigationis abundant, about 1500 mm/year - 3000 mm/year with a total of rainwater reaching 314.509,78 m3 over 13years. Based on the simulation, the most effective period of planting, for rice is in January and for soybean is inMay. In addition, the optimum pond dimension to serve 1 ha cropping land is about 2450 m2 in with 3m depth,or the ratio of land to pond is 4:1.Keywords : Evapotranspiration,Pond,Rainwater harvesting,Rice and Soybean
THE STUDY OF DRYING RATE AND PHYSICAL CHARACTERISTICS OF DRIED NOODLES WITH MIXED TAPIOCA AND WHEAT FLOUR kurniasari, eliya
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (479.369 KB)

Abstract

The purposes of this researchwere to knowthe effect of adding strach flour as a substitution material of wheatflour on the drying rate, physical characteristics and to compare the physical characteristics of dried noodleswith commercial noodles. The experimentwas designedwith four different composition ratio of starch flour andwheat flourwich are 0 : 100%; 10 : 90%; 20 : 80%, and 30 : 70% and simboleized with C0, C10, C20, and C30. Theresults of the coefisient of drying rate (k) of C0 is 0,014, higher than the other compositions. Furthermore , theadding of starch flour tends to decrease the cooking loss, water absorption and unfurl ratio, but tends to increasethe water content and the tensile strength of the noodles. Comparison between dried noodles and commercialnoodles on the physical characteristics did not significant different. The dried noodles showed the similarphysical characteristics to the commercial noodles.Keywords :dried noodles , the rate of drying ,wheat flour, tapioca flourand physical characteristics
THE PRODUCTION AND PHYSICAL CHARACTERISTICS TEST OF ANALOG RICE MADE FROM CASSAVA FLOUR CONTAINING PROTEIN OF SHRIMP Miftahul Jannah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (809.077 KB)

Abstract

Analog rice is one of the foods which are made from various kinds of flour that can be alternative rice. Thepurpose of this research was to create and test the characteristics of analog rice made from cassava flourenriched with shrimp proteins. Observation parameters on this research are moisture content, uniformity ofgrain, bulk density, water absorption and color test. The design of this study is using cassava flour and flourshrimpwith composition of each treatmentas follow : A (100 : 0), B (95 : 5), C (92.5 : 7.5),D(90 : 10), E (85 : 15).This study showed that analog rice produced water content of 12.53%- 14.01%, coarse grain diameter 0.95%-6.64%,moderate coarse grain 21.02%- 37.78%and fine grain55.58%- 78. 03%, bulk density from 0.57 to 0.73g/cm3 and water absorption 71.33% - 118.67%. Based on the analysis of variance (ANOVA), the treatment ofanalog rice influences on the nature of analog rice which is uniformity coarse andmedium with an effect on theresult of bulk density. The dominant color of the resulted analog rice is brown.Keywords: Fraction analog rice, Shrimp flourprotein, Cassava flour.
SIMULATION OF RAINWATER HARVESTING FOR SUFFICIENT WATER NEEDS IN RAISING CORN (Zea Mays) -, Febrianto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.692 KB) | DOI: 10.23960/jtep-l.v4i1.%p

Abstract

A rainwater harvesting systemconsisted of a planning land area and a rainwater collection pond area. This studyaimed to determine the optimum ratio of the planting area to the collection pond area. Researchwas conductedby running a 13 year simulation with daily time step. A 13 year (1999-2011) daily meteorological data setobtained fromtheMeteorology, Climatology and GeophysicsAgency (BMKG) Lampung Province,was used to runthe simulation. Programswritten using VISSIM4.0 (Visual Simulation). The results showed that the rainwaterharvesting system can suffice the irrigation water for maize. The smallest pond area (570 m2) required ifplanting was done in February, while the largest pond area (1620 m2) required if plantingwas done on August.KeyWords: Evapotranspiration, Corn, Irrigation, Rainwater harvesting.
DESIGN OF MICRO CLIMATE DATA ACQUISITION SYSTEM BASED MICROCONTROLLER ARDUINO ON GREEN HOUSE Putri, Heidi Yanti Anggraeni
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (463.236 KB)

Abstract

Micro climate (temperature, humidity and solar’s intensity) plays animportant role on growth anddevelopment ofplants.However,it is difficult to obtainthemicro climate data continuously. An automatic data acquisition systemis a such promising soluticts to this problem. The aimof this researchwas tomakemicro climate data acquisitionsystem in real time and save it into computer’smemory. It consists of five stages included system design, sensorcalibration, systemanalysis,data acquisition, and systemtesting. MicrocontrollerArduinoUNO based acquisitionsystem designed has several inputs, i.e. three DHT11 temperature and humidity sensors and a light dependentresistor (LDR). The outputs of this system were displayed on the LCD, and on the PC using virtual instrumentengineeringworkbench (LabVIEW) softwere, then the data were stored inMicrosoft Excel. The average error oftemperature sensor for eachDHT11 comparedwith alcohol thermometer readingwas 0,8oC forbothDHT11-(a)and -(b), and 0,2 oC DHT11-(c). The average error of relative humidity (RH) sensor for each DHT11 comparedwith Cole Palmer’s termocopel was 14,63%for DHT11-(a), 16,63%for DHT11-(b), and 11,13%for DHT11-(c).The light intensity can be successfullymeasured using LDR voltage with an error of ± 8.98%and R of 0.9926.Keywords:Data acquisition system, greenhouse,LabVIEW,micro climate,microcontroller ArduinoUNO
EXAMINING OF SEVERAL HIDROPONICS NUTRIENTS FOR LETTUCE ON MODIFIED FLOATING SYSTEM HIDROPONIC TECHNOLOGY Siregar, Jureni
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 4, No 1 (2015)
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.837 KB)

Abstract

This research aimed to find out the best nutrition for lettuce cultivated in a modified floating system hydroponictechnology. Experimentused inthis researchwas Randomized Complete Block (RBC)with factorial arrangement.Single factor treatments were five different brand nutrients (N1, N2, N3, N4, and N5), each consisted of fivereplicates. Data was analyzed by using Analysis of Variance (ANOVA), followed by Least Significant Difference(LSD)multiple comparasion5%. The result showed that the better nutritions for lettucewasGoodplant (N1) andNutri Mix (N5). Were indicated by the better performance of all parameters measured, such as plant height,number of leaves, root length, biomassweight with upper part and lower part.Keyword : Lettuce,Modified floating systemhydroponic technology,Nutrition.

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