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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal Irigasi Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) JURNAL SUMBER DAYA AIR Jurnal Agricultural Biosystem Engineering Rona Teknik Pertanian

Ahmad Tusi

Jurusan Teknik Pertanian, Universitas Lampung

Author-ID : 406963

Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Engineering Environmental Science Materials Science & Nanotechnology Other

Published : 27 Documents Claim Missing Document

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Rancangan Irigasi Sprinkler Portable Tanaman Pakchoy Ahmad Tusi; Budianto Lanya
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Sprinkler irrigation is one of the most efficient and effective effective irrigation. However, on-site application of sprinkler irrigation systems has encountered many obstacles, including the initial investment and operational costs. This study aimed to design a sprinkler irrigation system which saves the initial investment cost and simple in operation and maintenance, especially in the area where agricultural land were separated and small in area (0.10 to 0.30 ha) or without irrigation facilities. The research method in this study were the determination of the length and diameter of the pipe based on analysis of hydraulic pipe in lateral, manifolds and main pipe; sprinkler discharge calculation with volumetric method; and determination of irrigation uniformity with Christiansen method. The portable sprinkler irrigation system has specification: sprinkler nozzle head Impact Plactic type with nozzle size 4 mm, total height riser stick 1.3 meters in diameter ¾" elastic lateral pipe with a diameter of 2" and length 50 meters, pipe sub-main (manifold) and the main pipes of 2". The pump has a total head of 55 meters with a driving power of 5.5 HP, and suction hose 2". This sprinkler irrigation system can operate at operating pressure 1 to 4 bar. The discharge of sprinkler at a pressure of 1 bar is 0.12 l/s. Irrigation uniformity value resulted at a pressure of 1 bar was at 80%. To obtain the value of irrigation uniformity of more than 85%, it is advisable to use a minimum operating pressure of 2 bar.

Cover Volume 9 Nomor 4 Desember 2020 Ahmad Tusi, MSi
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.%p

Cover Volume 9 Nomor 2 Juni 2020 Ahmad Tusi, MSi
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 9, No 2 (2020): Juni 2020
Publisher : The University of Lampung

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.

Analisis Tingkat Kerawanan Bencana Banjir di Kota Bandar Lampung Berbasis GIS (Geographic Information System) dan Citra Landsat 8 Oli Ramadhani, M. Asvi; Amin, M.; Ridwan, Ridwan; Tusi, Ahmad
Jurnal Agricultural Biosystem Engineering Vol 2, No 4 (2023): December 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i4.8392

Floods in the city of Bandar Lampung are events that occur every year. This has a detrimental impact on humans and the environment, especially during the rainy season where floods often occur. To reduce the impact of human and environmental losses due to floods, this can be done through mitigating flood- prone areas by mapping flood-prone areas using the GIS 10.3 application with the overlay method by combining the parameters used and weighting each parameter to be produce a flood hazard map. This study aims to determine areas that have high flood potential, the main factors causing flooding and to determine the flood vulnerability class in each area of Bandar Lampung City. The parameters used in this study are Land Form, Rainfall, Soil Type, Land Slope, Land Altitude and Building Density. The analysis technique was carried out by giving weights to each environmental parameter and overlay techniques (tumpeng stacking maps) using the GIS application, analysis of building density levels using Landsat 8 image interpretation OLI Band 5 and Band 6. The results showed that the main factors causing flooding in Bandar City Lampung, namely high and evenly distributed rainfall in the city of Bandar Lampung reaching 3000 mm/year. Districts with a very high level of flood vulnerability are in the Bumi Waras District, covering an area of 13% of the administrative area of the District. Then areas that have a high level of flood vulnerability include Panjang 9% and East Betung Bay 4% of the area.North Betung Bay 9% and East Betung Bay 3.17% of the area. Keywords: ArcGis, Flood, Vulnerability, Weighting.

Pengararuh Jenis Media Tanam Hidroponik Agregat dan Electrical Conductivity Larutan Nutrisi Terhadap Pertumbuhan dan Produksi Melon Ariessandy, Irvan; Triyono, Sugeng; Amien, Elhamida Reskia; Tusi, Ahmad
Jurnal Agricultural Biosystem Engineering Vol 1, No 1 (2022): Maret 2022
Publisher : abe.fp.unila.ac.id

This study aims to determine the effect of aggregate hydroponic growing media and EC (Electrical Conductivity) nutrient solution on the growth and production of melon (Cucumis melo L.). This study used a Factorial Completely Randomized Design (RALF) consisting of 2 factors, namely the type of planting medium (cocopeat and husk charcoal) and the EC value (1, 2, 3, 4, 5) mS/cm, each replicated as much as 3 times to obtain 30 experimental units. The results showed that cocopeat was a planting medium that gave the best response to the parameters of fruit weight and sweetness level with an average fruit weight of 2.46 kg, in addition the use of EC 2 mS/cm and EC 3 mS/cm gave the best response to parameters of fruit weight and sweetness level with an average fruit weight of 2.04 kg and 2.05 kg. Based on these results, the use of EC 2 ms/cm was chosen as the best treatment, because it gives maximum results by spending less resources when compared to EC 3 mS/cm.

Pengaruh Volume Media Tumbuh Dan EC Nutrisi Terhadap Produktivitas Tanaman Melon (Cucumis melo L.) pada Hidroponik Sumbu Indah, Anne Nutri; Triyono, Sugeng; Tusi, Ahmad; Haryanto, Agus
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.v3i1.8746

The aim of the research was to study the effect of the volume of growth media and nutrient EC (Electrical Conductivity) on the yield and productivity of melon plants (Cucumis melo L.), using a hydroponic wick system. This study employed a Randomized Complete Design (RCBD) with a factorial arrangement consisting of 2 factors. First factor consisted of a 3 level growth medium volume per pot namely 5 liters (M1), 14 liters (M2), and 34 liters (M3). The second factor was a 4 level nutrient EC, including 1.5 mS/cm (P1), 2.5 mS/cm (P2), 3.5 mS/cm (P3), and 4.5 mS/cm (P4). Each treatment combination used 3 replicates to achieve 36 experimental units. The results showed that the treatment of the 34-liter growth media (M3) yielded high fruit weight of 1.40 kg and the highest water productivity of 37.90 kg/m³. The planting media volume treatment (M) significantly affected parameters namely stem diameter, fruit weight, sweetness level, fruit circumference, and water productivity, but not for other parameters. Meanwhile, the fertilizer EC treatment (P) significantly affected plant height, sweetness level, and fruit circumference, but not for other parameters. If fruit weight is used as the criterion, the optimum choice was M3P1 (34 liter media volume and 1.5 mS/cm EC). Keywords: Electrical Conductivity, Hydroponics, Melon, Rice Husk Charcoal, Wick System.

Analisis Ekonomi Sistem Fertigasi Pada Budidaya Bawang Merah (Allium cepa L.) Novianti, Evita; Tusi, Ahmad; Amien, Elhamida Rezkia; Suharyatun, Siti
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.v3i1.8819

Shallot cultivation using the fertigation system is a method of providing fertilizer and irrigation water for shallot plants through a drip irrigation system, which is more efficient and effective, so as to increase productivity. However, farmers still do not know information regarding the implementation of the fertigation system on shallots and the benefits. The purpose of this study was to analyze the cost requirements of the fertigation system, the economic feasibility of the business, and the minimum area of shallot cultivation area for business farmers who use the fertigation system and do not apply the fertigation system in Nambahrejo Village, Kota Gajah District, Central Lampung. There are two types of data obtained, namely primary data obtained from direct survey methods or collecting questionnaire data and interviews with farmers, and secondary data from literature and the like. The research results show that the shallot fertigation system with a quarter ha land area is feasible with a total cost value of ±Rp. 134,044,026,-/year, the NPV value is Rp. 291,029,252/year, Net B/C of 1.25, IRR of 35%, and payback period (PP) of 0.58 years / ±7 months. Shallot cultivation is recommended to be carried out with a minimum area of ¼ ha with 3 planting periods per year.

Analisis Kapasitas Tanah Menahan Air (Water Holding Capacity) pada Penambahan Biochar Berbahan Pelepah Kelapa Sawit (Elaeis guineensis Jacq) Akbar, Fahri Andrian; Suharyatun, Siti; Amien, Elhamida Rezkia; Tusi, Ahmad
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.v3i1.8928

The availability of water in the soil varies and is influenced by soil properties, especially those related to the soil's capacity to retain water. Water retention capacity is one of the primary functions of soil, playing a crucial role in maintaining moisture and distributing water to plants. This research aims to analyze the effects of dosage and particle size of oil palm frond biochar on soil infiltration and water retention capacity. The study employed a Completely Randomized Factorial Design (RALF), comprising two factors: the dosage of oil palm frond biochar (A) and the biochar particle size (B). The dosage factor consisted of three levels: 0% (A1), 0.6% (A2), and 1.2% (A3), while the biochar particle size factor consisted of three levels: < 0.5 mm (B1), 0.5 - 1 mm (B2), and 1 - 2 mm (B3). Each experimental unit was replicated three times, resulting in 27 experimental units. The study utilized soil with silt loam texture. The research parameters observed included soil water content at field capacity conditions (pF 2.54) and at permanent wilting point conditions (pF 4.2), changes in water content over time, mass density, particle density, porosity, water infiltration, and water retention capacity. The findings revealed that the addition of biochar to silt loam textured soil resulted in a reduction in infiltration rate, with the most significant reduction observed when applying biochar with a particle size < 0.5 mm (B1). Furthermore, providing biochar with a size of 0.5 – 1 mm at a dosage of 0.6% (B2A2) and a dosage of 1.2% (B2A3) had the effect of increasing the soil's water retention capacity. Keysword : Infiltration, Factorial Completely Randomized Design, Silt Loam, Soil Physical Properties.

Uji Pengaruh Beban Klep Buang Serta Ketinggian Input Dan Output Terhadap Efisiensi Pompa Hidram Kurniawan, Yoga Bagus; Triyono, Sugeng; Amien, Elhamida Rezkia; Tusi, Ahmad
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.v2i2.7264

Water is a natural material that is very important for humans, animals and plants. Apart from being used as consumption, water can also be used as an energy source, with the need for water use which is very important for humans, it needs to be supported by an increase in water supply. Water supply usually uses a pump that functions to raise water from a lower place to a higher place. However, there are still many people who still have difficulty meeting their water needs due to the weak purchasing power of the people to buy pumps, especially in rural areas. Therefore, it is necessary to design a hydraulic ram pump which is one solution to overcome this problem because it is cheap and simple to manufacture and maintain. A hydraulic ram pump is a pump that can raise water from a low place to a higher place using energy that comes from the water flow itself. To find out the performance of the hydraulic ram pump, a pump efficiency test was carried out with the treatment of different heights of water flow sources, different heights of water lifted and different exhaust valve loads. The results of efficiency testing are obtained that the higher the water flow source the greater the efficiency, the lower the water lift the greater the efficiency and the lightest load on the exhaust valve has the greatest efficiency. Keywords: water, pump, hydraulic ram pump, efficiency

Co-Authors Agus Haryanto Ahmad Zakaria Akbar, Fahri Andrian Alwi, Ivo Ali Saifullah Amien, Elhamida Reskia Apriyatama, Muhammad Ivanka Ariessandy, Irvan Azmi, Faadiyah Nurul Budi I. Setiawan Budianto Lanya Bustomi Rosadi Dadan Rahmandani Dermiati - Diah Yulita Ningrum Dian Fajar Lestari Diding Suhandy Dinna Afriyana Dyah Indriana K Elhamida Rezkia Amien Hanhan A. Sofiyuddin Indah, Anne Nutri Jamalam Lumbanraja Kiki Dwi Okvidiantoro Kurniawan, Yoga Bagus Leni Tri Wahyuni, Leni Tri M. Amin M. Muqorrobin Muamar Muamar Muhamad Zen Kadir Ning Hartati Setiasih Novianti, Evita oktafri - Oktafri Oktafri, Oktafri R Hanung Ismono Ramadhani, M. Asvi Restika Putri, Restika Ridwan, Ridwan Sandi Asmara Saputra, Rio Dwi Simamora, Kristian Gerenaldo Siti Suharyatun Sri Wahyuni Sugeng Triyomo Sugeng Triyono Sugeng Triyono Sutopo Ghani Nugroho Syamto, Ilham Nur Triana, Maruli W, Endro Prasetyo Warji Warji Widya Gandi Winda Rahmawati Zuleika, Divia Laila

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