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

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Uji Kinerja Sistem Fertigasi Tanaman Bawang Merah (Allium cepa L.) Wahyuni, Leni Tri; Tusi, Ahmad; Amien, Elhamida Rezkia
Jurnal Agricultural Biosystem Engineering Vol 2, No 3 (2023): September 2023
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v2i3.8060

Abstract

The purpose of the fertigation system is to meet the needs for irrigation and fertilizer for plants provided simultaneously through the drip irrigation system. Appropriate application of fertilizer and irrigation (both quantity and time of application) is the key to the growing process of shallot plants. The aim of the research was to test the fertigation system, analyze the performance of the fertilizer injector, and determine the uniformity of the drops in the drip fertigation system. Fertigation with a drip irrigation system design using a dripper line emitter (Streamline X, 16 mm diameter) with a spacing of 30 cm, 1-2inch PVC type manifold pipes, 4inch main pipe PE type, and 2 - 3inch PE type sub-main pipe. The water distribution method used a pump with a discharge of 13 m³/hour, a fertilizer injector with an injector (dosing proportional mix-rite), and an automatic control box system using NMC Pro. The variables observed were coefficient of uniformity (CU), fertilizer injector performance, and wetting diameter on the soil surface. The results showed that the appropriate fertilizer injector size setting for plant growth in each shallot growth phase was 0.3, 0.4, and 0.5. The irrigation efficiency and CU value were 96 % and 86 % respectively, which means that the water distribution via dripper lines has good uniformity with an average wetting diameter of 22 cm. Keywords:  Coefficient of Uniformity, Dripper Lines, Fertigation, Fertilizer Injectors, Shallots.
Pemberian Campuran Nutrisi AB Mix dengan Limbah Cair Kelapa Sawit Sebagai Pupuk pada Tanaman Sawi Hijau (Brassica chinensis var. Parachinensis) dengan Metode Hidrponik Zuleika, Divia Laila; Triyono, Sugeng; Tusi, Ahmad; Haryanto, Agus
Jurnal Agricultural Biosystem Engineering Vol 3, No 3 (2024): September 2024
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v3i3.9946

Abstract

Palm oil mill effluent (POME), discharged by palm oil processing industry, is potentially recovered as substitution of AB mix, a nutrient solution for hydroponic. The objective of this research is to test the use of the treated POME in the mixture with AB mix to cultivate green mustard. The method in this study uses a factorial Completely Randomized Design (CRD) with 2 factors.  The first factor, namely POME (K) consists of 2 levels, namely Pond 3 (K3) and Pond 4 (K4).  The second factor is the mixture of AB Mix and POME, which consists of 5 levels of the POME percentages namely: 0% (P0), 25% (P25), 50% (P50), 75% (P75), and 100% (P100). Results showed that the increasing percentages of POME additions tended to decrease the growth of green mustard. The best treatment was obtained on treatment of P0, 100% AB mix with no POME addition based on plant height, number of leaves, and water consumption. Keywords: AB Mix, Green Mustard, Hydroponic, POME, Wick System
Penetapan Prioritas Pengelolaan Aset Menggunakan e-PAKSI di Daerah Irigasi Way Sekampung Putri, Restika; K, Dyah Indriana; W, Endro Prasetyo; Tusi, Ahmad; Zakaria, Ahmad
Rona Teknik Pertanian Vol 18, No 1 (2025): Volume No. 18, No. 1, April 2025
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v18i1.39923

Abstract

Abstrak.Daerah Irigasi Way Sekampung merupakan daerah irigasi terbesar di Provinsi Lampung dengan luas 76.006 Ha. Daerah Irigasi Way Sekampung terbagi menjadi 7 sub daerah irigasi berdasarkan saluran induk (Feeder Canal), yaitu Feeder Canal I melayani Daerah Irigasi Sekampung Bunut, Sekampung Batanghari, Raman Utara, dan Batanghari Utara; sedangkan Feeder Canal II melayani Daerah Irigasi Punggur Utara, Bekri, dan Rumbia Barat. Pemerintah menghadapi kendala dalam operasi dan pemeliharaan daerah irigasi karena keterbatasan dana, yang sering kali tidak cukup untuk mencakup seluruh wilayah irigasi. Oleh karena itu, perlu dilakukan penetapan prioritas pengelolaan aset di Daerah Irigasi Way Sekampung agar penanganan yang dilakukan sesuai dengan kebutuhan dan memberikan manfaat maksimal. Penetapan prioritas pengelolaan aset di Daerah Irigasi Way Sekampung ini menggunakan aplikasi android bernama e-PAKSI (elektronik Pengelolaan Aset dan Kinerja Sistem Irigasi). Pendekatan modern ini bertujuan untuk meningkatkan efisiensi dan efektivitas pelaksanaan, serta mendukung pengurangan penggunaan lembar kerja lapangan (paperless). Berdasarkan hasil analisis skala prioritas didapatkan hasil secara berurutan adalah bangunan pelengkap, bangunan pengatur, saluran sekunder, saluran primer dan bendung.Determination of asset management priorities using e-PAKSI in the Way Sekampung Irrigation AreaAbstract.Way Sekampung Irrigation Area is the largest irrigation area in Lampung Province with an area of 76,006 Ha. The Way Sekampung Irrigation Area is divided into 7 sub-irrigation areas based on the feeder canal, namely Feeder Canal I serves the Sekampung Bunut, Sekampung Batanghari, North Raman, and North Batanghari Irrigation Areas; while Feeder Canal II serves the Punggur Utara, Bekri, and West Rumbia Irrigation Areas. The government faces obstacles in the operation and maintenance of irrigation areas due to limited funds, which are often insufficient to cover the entire irrigation area. Therefore, it is necessary to determine the priority of asset management in the Way Sekampung Irrigation Area so that the handling carried out is in accordance with needs and provides maximum benefits. Determination of asset management priorities in the Way Sekampung Irrigation Area uses an android application called e-PAKSI (electronic Management of Assets and Irrigation System Performance). This modern approach aims to improve the efficiency and effectiveness of implementation, as well as support the reduction of the use of field worksheets (paperless). Based on the results of the priority scale analysis, the results obtained in sequence are complementary buildings, regulatory buildings, secondary channels, primary channels and dams.
Pengaruh Campuran Pupuk Organik Cair Limbah Buah dengan Nutrisi AB Mix terhadap Pertumbuhan Bayam Merah (Alternantera Amoena Voss) pada Sistem Hidroponik Static Aerated Technique Simamora, Kristian Gerenaldo; Tusi, Ahmad; Amien, Elhamida Rezkia; Triyono, Sugeng
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 2 (2025): June 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i2.11050

Abstract

The high volume of fruit waste in Lampung and Indonesia in general requires environmentally friendly waste management solutions. This study aims to utilize such waste for liquid organic fertilizer by evaluating the effects of mixing fruit waste-based liquid organic fertilizer (LOF) with AB Mix nutrients on the growth of red spinach (Alternanthera amoena Voss) in a Static Aerated Technique (SAT) hydroponic system. The research employed a Completely Randomized Design (CRD) with a single factor, consisting of five treatment combinations of LOF and AB Mix concentrations (0–100%) and three replications. Observed parameters included plant height, number of leaves, plant weight, root length and weight, stem diameter, and water use efficiency. The results showed that the use of pure AB Mix (100%) produced the best growth outcomes compared to the mixed or pure LOF treatments. The lower growth and productivity in the LOF treatments were attributed to the low levels of macronutrients (N, P, K) in the produced LOF, as well as the presence of sediment that hindered nutrient absorption and the upward flow of nutrient solution from the reservoir to the plant root zone. Nevertheless, the combination of LOF and AB Mix still shows potential as an alternative nutrient source for hydroponic cultivation if optimally formulated.  Keywords:  AB Mix, Fruit Waste, Liquid Organic Fertilizer, Red Spinach, SAT Hydroponics,
Monitoring VPD (Vapor Pressure Deficit) pada Greenhouse dengan Ventilasi Alamiah Apriyatama, Muhammad Ivanka; Tusi, Ahmad; Rahmawati, Winda; Suhandy, Diding
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 3 (2025): September 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jabe.v4i3.11606

Abstract

Greenhouses with natural ventilation face challenges in maintaining a stable microclimate, particularly in managing air temperature and humidity, which affect the Vapor Pressure Deficit (VPD). This study aimed to monitor and analyze VPD levels inside a naturally ventilated greenhouse using misting (fogging) treatments at different heights, in order to determine the most effective strategy for VPD control. The research was conducted at the Department of Agricultural Engineering, University of Lampung, using three treatments: no fogging (T1F0), fogging at 50 cm (T2F50), and fogging at 100 cm (T3F100) above the plant canopy. Temperature and humidity data were collected using DHT22 sensors and a hygrometer, and used to calculate VPD values. The results showed that the 50 cm fogging treatment (T2F50) effectively reduced VPD to an average of 0.97 kPa, which is within the optimal range (0.5–1.2 kPa) for plant growth. In contrast, the no-fogging treatment produced the highest VPD value (2.17 kPa), which could cause plant stress. Statistical analysis (ANOVA and LSD test) indicated that fogging height significantly influenced VPD values, especially under hot weather conditions. Therefore, fogging at 50 cm is recommended as the most effective treatment for maintaining optimal VPD in naturally ventilated greenhouses.
Unjuk Kerja Mesin Perajang Biomassa Tipe Slicer Untuk Merajang Batang Singkong Saputra, Rio Dwi; Asmara, Sandi; Tusi, Ahmad; Suharyatun, Siti
Jurnal Agricultural Biosystem Engineering Vol. 4 No. 3 (2025): September 2025
Publisher : abe.fp.unila.ac.id

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to evaluate the performance of the Rabakong slicer-type machine and compare it with previous models. A Completely Randomized Design (CRD) was used with two factors: machine rotation speed (1500, 2000, and 2700 RPM) and the number of cassava stems input (2, 3, and 4 stems). Each treatment was repeated three times for 10 minutes. Observed parameters included work capacity (kg/h), fuel consumption (l/h), percentage of product loss, slicing uniformity (%), and ergonomic aspects of operator performance. The results showed the highest work capacity of 522.2 kg/h at 2700 RPM with 4 stems. The lowest product loss (0.82%) occurred at 2000 RPM with 3 stems, while the lowest fuel consumption (0,680 l/h) was recorded at 1500 RPM with 4 stems. The highest slicing uniformity (58%) was obtained at 2700 RPM, particularly for output passing through a 0.1 mm mesh. The Rabakong slicer-type machine falls under the moderate workload category with a CVL of 41–47% and an operator heart rate of 125–135 bpm, still within safe limits (Tarwaka, 2004). This machine outperforms its predecessor in capacity, uniformity, fuel efficiency, and operator comfort. Therefore, it is recommended as an effective solution for processing cassava stem waste into value-added products such as animal feed or compost.
Monitoring The Crowns Of Palm Oil Plants in Central Lampung Regency Using Remote Sensing Techniques Ridwan, Ridwan; Amien, Elhamida Rezkia; Asmara, Sandi; Tusi, Ahmad; Azmi, Faadiyah Nurul; Syamto, Ilham Nur
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 13 No 2 (2025): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jrpb.v13i2.1189

Abstract

Crude palm oil (CPO) productivity in Central Lampung Regency, at 2.25 tons/ha/year, remains below the national average of 3.90 tons/ha/year. One of the contributing factors is that oil palm plants are not growing optimally. This is reflected by the fact that the canopy cover is not dense or uniform. The objective of this study was to assess the dense or crown of oil palm trees using remote sensing technology from satellite imagery. In this study, Sentinel-2 imagery was used to oil palm canopy closure, and Landsat 8 imagery was used for land suitability analysis. The research method includes the vegetation index analysis by Normalized Difference Vegetation Index (NDVI), land moisture index by the Normalized Difference Moisture Index (NDMI), Land Surface Temperature (LST), and land suitability parameters. The results of the analysis are then macthed with the conditions of oil palm plants in the field. The results obtained from this study indicate that oil palm plantations in the Bekri District can be categorised into two discrete classes: Class S2 (sufficiently suitable) and Class S3 (marginally suitable). The total area encompassed by these classes is 8,903 hectares, with Class S2 covering 7,615 hectares and Class S3 covering 218 hectares. Moreover, the study revealed that 3,721 hectares were conducive to optimal plant growth with a dense crown, 765 hectares exhibited normal crown and growth, and 310 hectares displayed suboptimal growth with an indicated uniform dense crown. The overall accuracy rate of the study is 81.82%. There is a positive correlation between NDVI and NDMI values with a correlation coefficient (R2) of 0.8426, but there is a negative correlation between the NDVI and LST values with a correlation coefficient of -0.586.
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