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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.
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Articles 10 Documents
 1 
Search results for , issue "Vol 3, No 2 (2014)" : 10 Documents clear
Influence Of Media Storage Sand And Plastic Seeds With The Provision Of Cooling Water To Over Change In Quality Of Kepok Banana (Musa Normalis L) Artamy Maulia Ikhsan
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

Banana is a climacteric fruit is fruit that will perpetuate the process of maturity even though it has been harvested and is followed by the process of damage due to perpetuate fruit respiration and metabolic processes. The process of respiration in the fruit will result in rapid fruit mature and over-mature. This is an obstacle in maintaining the shelf life of a banana. This Study aims to determine the effect of storage media of sand and plastic seeds to changes in the quality of banana fruit. Storage media used in this study were sand and plastic seeds. While the banana varieties used in this study is kepok banana (Musa Normalis L). In this study each of the bunches of banana inserted into the aluminum tube that has been filled with a store media and cooling water on the outside of the storage media with high cooling water height of 10 cm from the media store. The results showed that colour of kepok banana changed from the begining until the end of storage.  Weight of kepok banana decreased by 12,45% and levels of violence decreased by 2,95 kg.s/mm on last day of storage.  In addition, the level sweetness of kepok banana increased to 23,0ºbrix and level of fruit water to 77,8% on last day of storage. Kepok banana stored in the sand has a longer shelf life (17 days) than the bananas that are stored in the storage media of plastic seeds (14 days) and control (10 days). Keywords: Storage, kepok banana, store media of sand, store media of plastic seeds, and cooling water.
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
TEST OF PERFOMANCE ERK HYBRID DRYER WITH BIOMASS FURNACE AS ADDITIONAL HEATING SYSTEM FOR NUTMEG SEED (Myristica sp.) DRYING Guyup Mahardhian Dwi Putra
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

Conventional drying depend on the weather. It was caused agricultural product damaged, and moldy attack. So we need hybrid dryer with a source of radiation and solar biomass to continuous drying and can be controlled.The  aims of  this research is test performance of ERK hybrid dryer to drying the nutmeg seed during the drying process. Experiments were conducted to determine the distribution of temperature in the dryer  in condition with no material and material conditions. Input of energy derived from biomass combustion in the furnace (evening) and combination of biomass and radiation (during the day). Measurements of temperature and RH using a thermocouple CC and alcohol thermometer. Temperature and RH to be measured include temperature and RH in dryer with several measurement points representing the up, middle , bottom  and inlet temperature, outlet temperature  and ambient temperature measurements at intervals of 30 minutes. The results showed  average temperature ranges between 42 ° C - 51 ° C and RH ranged between 50.96 % -55.65 % . Time of  drying is used to dry nutmeg from the initial moisture content from 80.72 % wb to 9.67 % wb is 52 hours with an average drying rate is 7.8 % db / hour . The total energy used to heat and vaporize materials,water that is 290 499.9 kJ.  Efficiency of drying system 8.63% and energy of drying required to water evaporated is 28520.62 kJ / kg. The result  quality of product obtained color of nutmeg generally  more uniform.Key word : nutmeg seed, drying, green house, efficiency.
THE APPLICATION OF DRIP IRRIGATION SYSTEM ON TOMATO (Lycopersicum esculentum Mill) Setyaningrum, Diah Ayu
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

This study aimed to analyze the performance of drip irrigation systems, determine performance of tomato treated under the irrigation systems.Field research was conducted at the Laboratory of Land and Water Resources Engineering; and at the Laboratory ofintegrated field, Faculty of Agriculture, University of Lampung in August 2013 to December 2013.Irrigation systems consisted of main componens: water supplies, Polythilene lateral tube, and emitters. Emitter on every pot, were made of Polythilene (PE) fabric.Pot experiment consisted of 32 pots, divided into two groups, a group of 16 pots was treated with surface drip irrigation system and the other half was treated with subsurface drip irrigation system.  Variables observed to the irrigation systems wereflowrate, coefficient variance (CV), emition uniformity (EU).  Variables observed to the plant were evapotranspiration (ETc), Kc, Soil moisture, water consumption, plant growth, and yield.  The results showed that the surface drip irrigation system had flowrate of 0.96 liter/hour, CV of 0.41 and EU of 54.85%, while the subsurface drip irrigation system had flowrate of 1.08 liter/hour, CV of 0.41 and EU of 56.43%.  Plants performance treated with surface drip irrigation system showed total crop evapotranspiration (ETc) of 490,8 mm,  while subsurface drip irrigation system showed total crop evapotranspiration (ETc) of 580,9 mm.Higher crop evapotranspiration of subsurface drip irrigation system was due to better plant growth in the subsurface drip irrigation system.  This was also shown by higher crop coefficience (Kc) of subsurface drip irrigation system.Keywords : drip irrigation, tommato, evapotranspiration, surface, sub-surface
STUDY EFFECT OF IRRADIATION 0.75 kGy DOSE ON CHILLING INJURY SYMPTOMS OF MANGO cv GEDONG DURING STORED Sugianti, Cicih -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

Low temperature storage may cause mango experience the chilling injury. Study on the chilling injury symptoms of mango stored under low temperature storage and effect on mango irradiated 0,75 kGy will be very important in order to understand better method to reduction of chilling injury. This research objective was to study the effect of irradiation gamma rays on the chilling injury symptopms of mango fruits stored at 8, 13°C and room temperature. The quality of mango during storage were evaluated from the changes in respiration rate, firmness, weight loss, total soluble solid,   total acid and pH. The result showed that mango fruits experienced chilling injury at storage condition of 8°C. The chilling injury symptoms  was showed by the mango of control. This phenomenon of chilling injury symptoms at 8°C was also indicated by quality parameter. The mango of irradiated can reduced of chilling injury symptoms.Keyword: Mango cv Gedong, Irradiation, Chilling Injury.
PHYSICAL CHARACTERISTICS TEST OF FAKE RICE COMPOSTING WITH TARO AND ONGGOK FLOURS Dinarki, Anis -
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

Analog rice is made   of non paddy flour.  The utilization of taro flour as material for analog rice needs to be developed.  The purpose of this study was to measure the characteristics of analog rice made   from taro flour and onggok flour such as uniformity of grain, bulk density, moisture content, water absorption, and extention ability.  Granulation of the analog rice was done using a granulator with 6 different compositions of taro flour-coarse cassava flour, and taro flour – fine cassava flour with ratio of 75:25 , 85:15 , 95:5, respectively.  The results showed that the diameter of grain of analog rice affect uniformity, moisture content, water absorption, and extention ability.  In mixture of taro flour and coarse cassava flour yielded diameter of 2-4.70 mm, bulk density of 0.77-0.84 g/cm3, the water content of 11.84-12.85 %, 62.15-94.25 % water absorption, 9.30-13.46 % extention ability, whereas the mixture of cassava flour and taro flour produced diameter > 4.70, bulk density 0.74-0.83 g/cm3, the water content of 10.76-13.31 %, 57.03-76.94 % water absorption, 11.33-12:53 % extention ability. Starch content of material affect the water absorption and extention ability of the analog rice.Keywords : Taro, taro flour, onggok flour, rice, analog rice.
[INFLUENCE OF SHADING ON THE GROWTH OF GREEN MUSTARD (BRASSICA JUNCEA L.) CULTURED IN HYDROPONIC DFT ( DEEP FLOW TECHNIQUE] aulia Nurbaiti mansyur
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

The study aims to determine the response of green mustard (Brassica juncea L.) to the shade.  This study used a randomized complete block design (RCB).  Treatment consisted of T0 (control), T1 (one shade), T2 (two shades with one shade slightly slided to the east), T3 (two shades with one shade slightly slided to the west) and T4 (three shades).  Shade in the form of plywood to the width and the distance between the shade of 12 cm are placed 50 cm above the gutter extends.  Gutters along the 4 m with plant spacing of 10 cm is used as a nutrient.  Comparison of fertilizer ( a : b) and water for 250 ml : 250 ml : 50 liter.  Experiment used gutters as the growing media which were devided into three parts, namely B1 (section near the aerator), B2 (middle gutter) and B3 (the farthest part of aerator). Nutrient solution is circulated at flow rate of 1.2 cm/sec by using a small pump, which was also functioned as the aerator.  Data was analyzed by using the analysis of variance test and LSD multiple comparisons.  The results showed that T2 (two shades with one shade slightly slided to the east) produces the best respons with plant height (33,07 cm) and final weight (436,47 g).  The result also showed that all environmental parameters (EC, DO, and pH) observed a long the gutter were not significantly different, indicating that the nutrient solution was quite homogeneous throughout the gutters.
MODIFICATION OF MECHANICAL EQUIPMENT SEMI corn sheller Nurdin - Ar Rasid
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 (404.453 KB) | DOI: 10.23960/jtep-l.v3i2.%p

Abstract

The purpose of this research is to improve the performance of the tool before and get a corn sheller sheller corresponding cylindrical shape. The modified part was the cylinder of sheller by using 4, 8, and 12 segments of serrations. Each cylinder received 3 treatments. The cylinder was fed by 1 cob (T1), 2 cobs (T2), and 3 cobs (T3) with three replications. This research was successful to modify the corn sheller machine with dimension of 100 cm x 50 cm x 115 cm with three types of sheller cylinders. The mechanism principle of this corn sheller was that the sheller cylinder in the middle of holder cylinder was operated by human power through hand crank with 50 to 70 rpm. The results showed that the highest yield (96%) was obtained by corn sheller with 4 serrations while 4% remained unshelled. The lowest yield (92%) was obtained by corn sheller with 12 serrations while 8% remained unshelled. From all treatments, the best result was corns sheller with 4 serrations fed with 3 corn cobs with percentage of 99.40% good shelled weight and 0.60% poor shelled. The lowest result with biggest damage was in the corn sheller with 8 serrations fed with 1 corn cob. The result was 97.53% good shelled and 2.47% poor shelled. The highest capacity (1.58 kg corn cobs/minute) was obtained by the corn sheller machine with 4 serrations.Keyword: Corn sheller, modification cylinder sheller, performance tools
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

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Abstract

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 APPLICATION OF DRIP IRRIGATION SYSTEM ON CAULIFLOWER (Brassica Oleracea Var. Botrytis L. Subvar. Cauliflora DC) IN AGREENHOUSE Hendri - Yanto
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 3, No 2 (2014)
Publisher : The University of Lampung

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Abstract

The research aimed to test performance of a drip irrigation system to irrigate cauliflower cultivated in a greenhouse.  The drip irrigation system using emitter type regulating stick emitter as many 315.  One Main pipe, one manifold, and four lateral pipes were from PE types with the diameter of 13 mm.  The methods to deliver irrigation water were by using a small pump 13 Watt and by using gravitational pressure with head 155 cm. Variables observed were emission uniformity (EU), water requirement, plant growth, and water productivity.  The results showed that   Emission uniformities were 64,49 % for gravitational flow and 61,46 % for pumping flow.  These values were still below recommended, that is 75 % - 85 %. The minimum, maximum, and mean reference evapotranspiration (ETo) were recorded as 5,80 mm/day, 9,70 mm/day, and 7,20 mm/day.  Whilst crop evapotranspiration (ETc) at the day of 41 after planted was 3.2 mm/day.  Average yield of cauliflower was 58 gram per plant, while water productivity was 0,87 gram/litter.Keyword:     cauliflower, crop water requirement, drip irrigation, emitter, emission uniformity

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