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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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Journal : Jurnal Irigasi

 1 
Pendugaan Kebutuhan Air Tanaman Nanas (Ananas Comosus l. Merr) Menggunakan Model Cropwat Tusi, Ahmad; Rosadi, Bustomi; Triana, Maruli
Jurnal Irigasi Vol 7, No 1 (2012): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (778.524 KB) | DOI: 10.31028/ji.v7.i1.43-51

Abstract

Pineapple is one of the potential plantation industries in Lampung Province. There are problems faced off in pineapple irrigation such as when and how much water must be applied to meet acceptable productivity and quality. The objective of this research was to know the water requirements by investigating and evaluating measurement methods of evapotranspiration using CROPWAT model. This research was conducted on Pineapple Farm in Terbanggi Besar, Lampung Tengah from October 2006 to January 2007. Three measurement methods of evapotranspiration applied were CROPWAT Model, based on Pineapple Farm calculation (control) and Pan evaporation Method were conducted and arranged in Randomized Completely Block (RCB) design with six replications. The results showed that the daily water requirements on October until December with 10-days irrigation frequency for CROPWAT Model were 1.25, 1.16, and 1.07 mm/day respectively; with the Control Method were 1.20 mm/day; and with Pan evaporation method were 1.13, 1.02, and 0.9 mm/day. Water requirements for plant was enough without suffering water stress. The comparison results showed that the evapotranspiration derived from CROPWAT Model data are generally 4.3% lower than Control data but by the Pan Evaporation were generally 16.4% lower than Control data. So, it confirmed that The average trend of plant growth indicators from CROPWAT Model having a reasonable good results for irrigation scheduling.
Rancangan Irigasi Sprinkler Portable Tanaman Pakchoy Ahmad Tusi; Budianto Lanya
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1315.64 KB) | DOI: 10.31028/ji.v11.i1.43-54

Abstract

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.
Co-Authors Agus Haryanto Ahmad Zakaria Akbar, Fahri Andrian Alwi, Ivo Ali Saifullah 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 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