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Pertumbuhan Akar dan Produktivitas Tanaman Tomat (Solanum lycopersium L.) dengan Variasi Ukuran Media Tanam Hydroton Alwi, Ivo Ali Saifullah; Tusi, Ahmad; Oktafri, Oktafri; Warji, Warji
Jurnal Agricultural Biosystem Engineering Vol 1, No 2 (2022): Juni 2022
Publisher : abe.fp.unila.ac.id

Hydroton is a clay-based growing medium used in hydroponic systems with variations in size 1-2.5 cm. In Indonesia, most hydrotons are still imported from other countries. The main purpose of this study was to observe the root growth and production of tomato plants grown on hydroponic systems, static aerated technique (SAT) with variations in hydroton size. This study was designed using a complete random design (CRD) with 4 hydroton size treatments (commercial hydroton as control (H0) and 3 experimental treatment with differences in hydroton size made from a mixture of clay and charcoal husk burn (H1, H2 and H3) and 6 replications in each size treatment so that there are 24 experimental units. On the observation of plant productivity showed different results on the treatment applied, while on the growth of roots did not show different results but the growth of roots on artificial hydroton better than commercial hydroton as a control based on physical roots and trend data. The amount of fruit harvested per plant obtained the best results of 25 fruits in the H3 treatment and the total weight of fruit per plant obtained the best results of 1.055,5 grams in the H3 treatment. The longest root in this study measured 96.6 cm in H0 treatment and the weight of the heaviest root in the net pot is 71,5 grams in H1 treatment while the weight of the heaviest root outside the net pot is 276,6 grams in H2 treatment. Based on the results of this study, the increase in the size of the hydroton is able to increase the production value of tomato plants compared to commercial hydroton and hydroton which are smaller in size.

Pemanfaatan Arang Kayu, Tempurung an Sabut Kelapa Sebagai Bahan Bakar Pengasapan Ikan Nila (Oreochromis niloticus) Menggunakan Alat Pengasap Ikan Tipe Drum Asmara, Sandi; Putri, Mustika; Oktafri, Oktafri; Kuncoro, Sapto
Jurnal Agricultural Biosystem Engineering Vol 3, No 1 (2024): March 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i1.8747

Tilapia is a freshwater fish that is popular with many people, because its meat tastes savory and delicious. One way to process fish so that it lasts is by smoking the fish. This fish is smoked using a drum type smoker. This research aims to analyze the characteristics of smoked tilapia using several fuel components. The sample used was approximately 36 kg of fresh tilapia fish with fuel consisting of a composition of wood charcoal and coconut husks, wood charcoal and coconut shells, and a composition of coconut shells and coconut husks. The best treatment of the three fuel compositions used is the P2 treatment with a composition of 50% wood charcoal + 50% coconut shell, with an organoleptic value of appearance 8.60, aroma 8.33, taste 8.67 and texture 8.47, which means appearance whole, the color is less shiny, specific to the product, has a specific aroma of smoked fish that is less strong, has a specific taste of smoked fish that is less strong, and has a dense, compact texture, quite tight intertwining which has a weight loss of 35.5%, water content of 54.89% (in accordance with SNI), the yield is 64.49% and the amount of fuel used is 3.6 kg. Keywords: Coconut Fiber, Coconut Shell, Drum Type Smoker, Tilapia Fish Smoking, Wood Charcoal.

Pengaruh Suhu dan Tekanan terhadap Hasil Penggorengan Keripik Pisang Muli (Musa acuminata) Model Semprong Menggunakan Vacuum Frying Asmara, Sandi; Oktafri, Oktafri; Kuncoro, Sapto; Sari, Selvi Yunita
Jurnal Agricultural Biosystem Engineering Vol 3, No 2 (2024): June 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i2.9085

Fruit chips are healthy snacks because of their high fiber content. Processing of Muli banana chips with vacuum frying is an appropriate method to increase the shelf life of bananas by processing them into fruit chips. Utilization of Muli bananas with the semprong model as a processed product for chips is an effort to increase the diversification of Muli banana products and effort the selling value of the Muli banana products themselves. Vacuum frying is a frying process that can maintain nutritional value. The research method used experimental design in the form of a factorial Completely Randomized Design (CRD). Experimental factors in this study used two temperature factors (T), namely temperature 80°C, 85°C, 90°C, and pressure (P) during the frying process namely -68 cmHg, -70 cmHg and -72 cmHg, with 3 repetition. The parameters observed in this study were of material shrinkage (yield), moisture content, organoleptic test, and storage (estimation of material shelf life). The conclusion the quality of the Semprong model Muli banana chips with a temperature of 85°C and a frying pressure of -72 cmHg in this study produced good quality Muli banana chips. Muli banana chips of the semprong model with a temperature of 85°C and a frying pressure of -72 cmHg in this study had a material yield value of 30.3%, a moisture content of 3.94% and a crispness test score of 4.67 (crunchy), aroma of 3.93 (rather strong banana aroma), color 3.87 (brownish yellow), taste 4.73 (sweet). Keywords : Chips, Muli Banana, Vacuum Frying.

Analisis Ekonomi Alat Pengasap Ikan Tipe Drum Terhadap Pengasapan Ikan Lele (Clarias Sp.) Asmara, Sandi; Anhar, Satria Radly; Oktafri, Oktafri; Suharyatun, Siti
Jurnal Agricultural Biosystem Engineering Vol 3, No 4 (2024): Desember 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i4.10168

The purpose of this study is to determine the performance of drum-type fish smokers, determine the economic feasibility value and sensitivity level of drum-type fish smokers to indicators of changes in the number of working days, the price of catfish, and the selling price of smoked catfish. Based on the results of the research, the drum-type fish smoker is able to smoke 6.4 kg of catfish using 1.655 kg of coconut shell and 2.496 coconut fiber as fuel. Based on economic analysis, this tool is declared feasible to use with the BEP value obtained of 22.35/kg, NPV of Rp 72,213,896.97/year, B/C ratio of 1.35 and IRR of 898.25%. Based on the sensitivity analysis of the use of tools to changes in working days, there is no significant change in each change in working days but it is still feasible to run. Based on the sensitivity analysis of changes in the price of catfish, there is a significant change in every change in the price of catfish, where the lower the price of catfish, the more profit is obtained. While the sensitivity analysis on changes in the selling price of smoked catfish occurs a significant change, where the higher the selling price of smoked catfish, the higher the profit obtained from the use of drum-type fish smoking equipment. Keyword: BEP, B/C Ratio, Drum Type of Smoke Fish, IRR, NPV.

Pemanfaatan Limbah Batang Singkong dan Serat Tandan Kosong Kelapa Sawit (TKKS) sebagai Bahan Dasar Pot Organik W, Nazova Falhbian; Oktafri, Oktafri; Asmara, Sandi; Kuncoro, Sapto
Jurnal Agricultural Biosystem Engineering Vol 1, No 3 (2022): September 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v1i3.6336

Before planting, generally the seed is sowed in polybag that made of plastic (on organic). For excessive use of polybag it can damage the environmental. To prevent more severe environmental damage, it is necessary to find a safe way for the sustainability of environmental quality, that is by using organic materials. There are many organic materials can be used for seedling pots. Two of them are cassava stem waste and Oil Palm Empty Fruit Bunches (OPEFB). OPEFB can increase strength and stiffness of wall of the pots (organic seedling pots). To glue cassava stem waste and OPEFB then add enough adhesive material. This research was held in October to December 2019 at Laboratory of Power and Agricultural Machinery and Laboratory of Land and Water Resources Engineering, Department of Agriculture Engineering, Faculty of Agriculture, University of Lampung. The method of this research is Completely Randomized Design, with composition of ingredients cassava stem and OPEFB that consist 6 levels; P1 is 70% cassava stem and 30% OPEFB, P2 is 60% cassava stem and 40% OPEFB, P3 is 50% cassava stem and 50% OPEFB, P4 is 40% cassava stem and 60% OPEFB, and P5 is 30% cassava stem and 70% OPEFB. The result of this research showed that characteristic of test about moisture, density, impact resistance index, and water absorption had significant on combination of mixed materials. For crops test with green lettuce, the result showed that height of crop, number of leaves, and root length were not significant on combination of mixed materials. The best result of organic seedling pots in this research is on treatments of P3; 50% cassava stem and 50% OPEFB, with moisture is 11,46%, density is 0,28 g/cm3, impact resistance index is 98,04%, and water absorption capacity is 128,2 %. Keywords: Cassava Stem Waste, Characteristic Test, Crops Test, OPEFB waste, and Organic Seedling Pots.

Identifikasi Zona Potensi Air Tanah Berbasis Sistem Informasi Geografis di Kabupaten Lampung Tengah Jati, Galih Kuncoro; Ridwan, Ridwan; Oktafri, Oktafri; Asmara, Sandi
Jurnal Agricultural Biosystem Engineering Vol 3, No 4 (2024): Desember 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i4.10174

Water is an essential natural resource playing a critical role in human life. Most of the community's needs for drinking water, industry and agricultural irrigation are met from groundwater sources, with agricultural irrigation being the largest user. Central Lampung Regency is dominated by agricultural land and plantations as the main economic sector. Groundwater is a more secure, drought-resistant and easily accessible source, which greatly supports agriculture in this region. This study aims to identify groundwater potential in Central Lampung Regency using remote sensing data and Geographic Information Systems (GIS). Remote sensing applications are employed to assess vegetation density through the Normalized Difference Vegetation Index (NDVI) algorithm. This parameter is then overlaid with other factors, such as soil type, rainfall, land cover, rock lithology, aquifer productivity, slope, and the Topographic Wetness Index (TWI), resulting in a groundwater potential map. Based on the generated groundwater potential map for Central Lampung Regency, it is found that the distribution of groundwater potential is as follows: 0.03% with very high potential, 6.03% with high potential, 84.11% with moderate potential, 9.77% with low potential, and 0.06% with very low potential. Keywords: Groundwater, GIS, NDVI, Remote Sensing

Rancang Bangun dan Uji Kinerja Alat Pemisah Kernel Sawit dari Cangkangnya dengan Menggunakan Larutan Garam Hidayatullah, Martin Sulung; Tamrin, Tamrin; Oktafri, Oktafri; Warji, Warji
Jurnal Agricultural Biosystem Engineering Vol 2, No 2 (2023): June 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i2.7482

. Palm oil has an important role to play in improving the country's foreign exchange. The largest selling point in palm oil is palm kernel oil (PKO), this palm kernel oil processing process involves a mixture of kernels and shells that will later be separated. This research aims to design the build and produce a prototype kernel separator from its shell by using a saline solution to minimize excess costs and able to separate the kernel and shell >80%. Methods carried out in this study include designing, manufacturing and testing. After that, prototype kernel separator with palm shell using salt solution with tool dimensions on container length 53 cm, width 40 cm, height 42 cm, water receiver body length 22 cm, width 16 cm, height 28. The kernel separator with palm shell using this saline solution is able to separate the kernel and shell mixture by 82%. Keywords: Design, Kernel,Palm Oil, Shell, Separation.

Uji Kinerja Mesin Pencacah Tipe Multiguna untuk Pencacahan Tongkol Jagung Aprilliandi, Reza; Suharyatun, Siti; Oktafri, Oktafri; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 1, No 3 (2022): September 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v1i3.6321

Indonesia is an agrarian country because it has abundant agricultural products, one of its mainstay is corn. Besides rice, corn is one of the staple foods consumed by Indonesian people, but only the corn’s grain are used in corn. The cornhusk and corn cobs are usually thrown away or just burned because they are not used. One of the way to process corncobs waste is by chopped corncobs to be used as animal feed. Corncobs that have been separated from the grains of corn were chopped using a chopper machine (Chopper). All this time, these machines have been widely used by society. However, it still raises problems related to the chopper machine. This study uses the observed parameters, namely the enumeration work capacity, fuel consumption, the uniformity of the enumeration results, and the yield. Based on the result of the study, the effect of treatment on yield was not significantly different, with an average yield value of 94.89%. The highest chopping results of corn cobs is at high rotational speed of 1245 rpm with an engine working capacity of 332.88 kg/hour. The lowest fuel consumption is at a rotating speed of 890 rpm with a fuel requirement of 0.74 liters/hour. The effect of treatment on the distribution of chopped results was not significantly different, with the average value for fine chopping 67.29% and 32.71% for coarse chopping. Based on the ANOVA test, the effect of treatment on fuel productivity was not significantly different, with an average fuel productivity value of 301.61 kg/liter. Keywords: Chopper, Chopper Machine, Corn, Corncobs, Rotating Speed.

Unjuk Kerja Mesin Pemanen Padi Combine Harvester Merek Crown Tipe CCH-2000 Star di Kecamatan Sragi, Lampung Selatan Nugraha, Danang Rezki; Asmara, Sandi; Oktafri, Oktafri; Lanya, Budianto
Jurnal Agricultural Biosystem Engineering Vol 1, No 4 (2022): Desember 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v1i4.6554

Almost all regions in Indonesia do not have a large availability of labor, therefore mechanical devices are needed to replace them, especially in terms of harvesting shortages of labor can be replaced by mechanical devices such as combine harvester rice harvesting machines. Rice harvesting machine Combine Harvester type ridding brand Crown Type CCH-2000 Star is an agricultural machine that functions to harvest rice through the stages of linking, directing, cutting, bringing the results of pieces, shedding, and cleaning the grain which is done in an integrated manner in one process. The purpose of this study was to find out the performance of the Combine Harvester machine for rice harvesting. This research consists of three main stages, namely machine and land preparation, machine performance testing and data analysis. The parameters observed were work speed, theoretical field capacity, effective field capacity, field efficiency, grain harvest losses, and fuel consumption carried out in May in Sragi District, South Lampung using Combine Harvester machines. The results showed that the engine working speed was 3.38 km/h while the tests carried out by the Center for Agricultural Mechanization Development were 3.90 km/hr. Effective field capacity of 0.77 ha/hour, theoretical field capacity of 0.33 ha/hour, and field efficiency of 42.85%. The percentage of harvest shrinkage in an area of 1 hectare is 0.9% better than the loss with conventional harvesting of up to 18.75%. Fuel consumption when harvesting with an area of 1 ha with 2100 rpm consumes fuel at 16.8 liters/ha. Keywords: Combine Harvester, Machine Performance, Previous Research, Rice.

Uji Kinerja Portable Rainfall Simulator pada Berbagai Tekanan untuk Mengukur Keseragaman dan Intensitas Hujan Ridwan, Ridwan; Oktafri, Oktafri; Amin, Muhammad; Berdikari, Rendi Amanda
Jurnal Agricultural Biosystem Engineering Vol 1, No 4 (2022): Desember 2022
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v1i4.6529

Indonesia is located in a tropical climate, which only has rainy and dry seasons. However, the seasonal pattern in Indonesia can no longer be used as a reference, especially the rainy season. This causes environmental problems, one of which is erosion. To overcome these problems, it can be done by simulating artificial rain using a portable rainfall simulator. This study aims to determine the performance test of a portable rainfall simulator at various pressures to measure the uniformity and intensity of rain. This research was conducted by testing the Portable Rainfall Simulator with various pumping pressures, namely 1.5, 1.8, and 2.1 bar with a test time of 15, 30, 45, 60, and 75 minutes, respectively. The results showed that the Portable Rainfall Simulator produced rain discharge with a uniformity level (CU) greater than 70%. This means that the artificial rainwater produced by the Portable Rainfall Simulator nozzle has a good level of uniformity and has good performance. Portable Rainfall Simulator with adjustable nozzle is only able to produce rain intensity criteria at various pressures, namely very light rain and light rain at pressures of 1.5, 1.8, and 2.1 bar. In addition, the pumping pressure affects the value of the uniformity coefficient of the radiated discharge (CU), the greater the operating pumping pressure, the greater the value of the uniformity coefficient of the radiated discharge (CU). However, this pumping pressure has no effect on the value of rain intensity. Keywords: Climate, Erosion, Portable Rainfall Simulator, Rain.

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