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Jurnal Irigasi

jurnal_irigasi
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Published by Puslitbang Sumber Daya Air

ISSN : 19075545 EISSN : 26154277 DOI : -

Core Subject : Agriculture, Engineering,

Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Engineering

Jurnal Irigasi merupakan publikasi ilmiah yang memuat hasil-hasil penelitian, pengembangan, kajian dan studi kasus terkait irigasi dan drainase. Ruang lingkup Jurnal Irigasi meliputi survei, investigasi, desain, akuisisi lahan, konstruksi, operasi, pemeliharaan di sistem irigasi yang ditinjau baik dari sisi teknis, ekonomi dan kelembagaan. Terbit pertama kali tahun 1986 dengan nama Jurnal Informasi Teknik dan pada tahun 2006 berganti nama menjadi Jurnal Irigasi. Jurnal Irigasi diterbitkan 2 (dua) kali dalam setahun yakni pada bulan Mei dan Oktober.

Arjuna Subject : -

Articles 99 Documents

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Pengembangan Model Jaringan Saraf Tiruan untuk Menduga Emisi Gas Rumah Kaca dari Lahan Sawah dengan berbagai Rejim Air Chusnul Arif; Budi Indra Setiawan; Slamet Widodo; - Rudiyanto; Nur Aini Iswati Hasanah; Masaru Mizoguchi
Jurnal Irigasi Vol 10, No 1 (2015): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

The paper proposes the artificial neural networks (ANN) model to predict methane (CH4) and Nitrous Oxide (N2O) emissions under different irrigation system based on easily measurable environmental biophysics parameters such as soil moisture, soil temperature and soil electrical conductivity. To verify the model, two experiments were conducted in the pot experiments in two different locations. The first location was in the greenhouse of Meiji University, Kanagawa Prefecture, Japan from 4 June to 21 September 2012, and the second location was in water resources engineering laboratory, Department of Civil and Environmental Engineering-IPB from 2 July to 10 October 2014. In each location, there were three different irrigation systems adopted with the System of Rice Intensification (SRI) principles. We called the experiment as SRI Basah (SRI B1 and SRI B2 for the first and second locations, respectively), SRI Sedang (SRI S1 dan SRI S2) dan SRI Kering (SRI K1 dan SRI K2). Each treatment has different water level during growth stages. As the results, the developed ANN model can predict CH4 and N2O emissions accurately with determination coefficients of 0.93 and 0.70 for CH4 and N2O prediction, respectively. From the model, characteristics of those greenhouse gas emissions can be well identified. For the mitigation strategy, SRI B1 and SRI B2 treatments in which the water level was kept at nearly soil surface are the best strategy with highest yield production and lowest GHG emission.

Efisiensi Sistem Irigasi Pipa untuk Mengidentifikasi Tingkat Kelayakan Pemberian Air dalam Pengelolaan Air Irigasi Afri Fajar; Muhammad Yanuar J. Purwanto; Suria Darma Tarigan
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Irrigation water loss that commonly occurs in an agricultural area are runoff and deep percolation. Pipe irrigation has reached 98% efficiency because it can control the use of water as needed and has no seepage for water supply. Distance of paddy field’s inlet should also be a considered factor aside from irrigation technology. Rice field’s inlet distance affect the water distribution in a fields plot as they relate to application efficiency (Ea) and the efficiency of water distribution (Ed). The method used in this research was descriptive method that collect primary data and secondary data. The experiment plots were installed with irrigation pipes. The results showed Ed values above 90% in conventional and System of Rice Intensification (SRI). This explains the distribution of water in pipe irrigation evenly throughout the planting area. Ea value on experimental plots ranged between 76% - 98%. This is because of the occurrence of deep percolation and surface flow at the conventional fields, which causes decrease in efficiency. The paddy field inlets distance simulation results showed that good Ea (≥ 90%) obtained at a distance of 30 m with SRI water application gave water saving up to 10,25%. The feasibility of the water application on the value of Ea was obtained from the level of application of irrigation water’s pattern to conventional paddy at vegetative phase is critical at a distance of 170 m, while the generative phase is critical at a distance of 75 m and very critical at 178 m. SRI paddy field gives the value of feasibility of providing water at vegetative phase becomes near critical at a distance of 170 m, while the generative phase becomes critical at a distance of 150 m.

Uji Kinerja Emiter Cincin - Reskiana; Budi Indra Setiawan; Satyanto K. Saptomo; Popi Redjekiningrum Dwi Mustatiningsih
Jurnal Irigasi Vol 9, No 1 (2014): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Water scarcity causes the utilization of dryland is not maximal in supporting agricultural production in Indonesia. Efficient irrigation technology which is economically affordable by farmers needs to develop. This research aimed to provide an irrigation ring typed emitter that can be placed under the soil surface. In this research, porous materials made of textiles were tested for its permeability that matches the permeability of the soil. We got 5 textiles made of Legacy having permeability of 1.54 cm h-1, Colosal 0.76 cm h-1, Veronica 8.16 cm h-1, Kyramat 5.28 cmh-1, and Parasut 0.06 cmh-1. This selected textile was rolled covering a ring typed perforated water hos (ring emitter). These emitters were then tested to irrigate potted water melon plants in a greenhouse. The results show ring emitters covered with Legacy and Colossal have better water productivity, 0.64 kg m-3 and 1.90 kg m-3, respectively with the averaged water discharge 0.52 l h-1 and 1.08 l h-1.

Pengaruh Perlakuan Pemberian Air Irigasi pada Budidaya SRI, PTT dan Konvensional terhadap Produktivitas Air Subari Subari; Marasi Deon Joubert; Hanhan Ahmad Sofiyuddin; Joko Triyono
Jurnal Irigasi Vol 7, No 1 (2012): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

The limitedness water availability and increased water needs can cause a conflict of interest in water allocation. Thus, efforts to save water usage needs to be done, especially for rice cultivation that requires a lot of water. Therefore, alternative irrigation and rice cultivation technology which can save water need to be investigated. Water savings in practice can be done by changing the pattern of irrigation in the field without reducing the production, i.e. by reducing the amount of water for the land preparation period and plant growth period. The study was conducted to determine the water productivity of different irrigation and paddy cultivation method (i.e. the SRI method, ICM and conventional) in the from of research demonstration plot. This paper presents the results of these studies, especially regarding water productivity in each irrigation and paddy cultivation method. The results showed irrigation water requirement during land preparation on SRI 22-47 mm; ICM 24-47 mm and conventional 30-68 mm. During the growth period, water consumption in the conventional cultivation is the highest with a mean of 577 mm. Other cultivation treatments showed lower results, i.e. SRI 324 mm and ICM 544 mm, and water productivity for SRI=1,9 Kg/m3; ICM=1,1Kg/m3 and for conventional = 1,0Kg/m3.

Desain Jaringan Irigasi Pipa pada Lahan Datar (Studi Kasus : Petak Tersier Pasir Salam 3 Kiri, Daerah Irigasi Panulisan – Cilacap) Dadan Rahmandani; Joko Triyono; Dadang Ridwan
Jurnal Irigasi Vol 9, No 2 (2014): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

The main problem of the application of pressurized pipe irrigation on flat land is not enough energy, so it may cause problem during the operation of the network. Basically, the flow in the pipe can be designed as open flow, so energy requirement can be reduced. However, the application of pipe irrigation system has not been widely studied so it can not be applied to the field scale. This study aims to create a network of pipe irrigation design by gravity with open flow. The research was done by designing pipe irrigation on flat land in Pasir Salam 3 kiri tertiary area. Afterwards the analysis and evaluation of the design requirements was performed in order to get technical feasibility of implementation. As the results, the diameter of the primary pipelines ranging from 8 inches (200 mm) to 10 inches (250 mm) at a flow rate of 0.35 m/s to 0.50 m/s. While the diameter of the secondary and tertiary pipelines between 1 inch (25 mm) to 6 inches (150 mm) with a flow velocity of 0.25 m/s to 0.46 m/s. These results indicate that the design of the application of irrigation pipe networks on flat land in Pasir Salam 3 kiri tertiary area in the Panulisan Irrigation Area was technically feasible considering the results of hydraulic calculation. Thus the water can flow by gravity at velocity ranging from 0.25 to 0.5 m/s and energy availability 0.09 m larger than requirement.

Penggunaan Material Komposit Sebagai Komponen Pintu Air Alternatif Aditya Prihantoko; Marasi Deon Joubert; Dadan Rahmandani
Jurnal Irigasi Vol 10, No 1 (2015): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Irrigation network operation is an important part of the irrigation management system. Operating on an irrigation area (DI) requires the performance of human resources (jurupengairan) and divider building infrastructure, in this case irrigation water gate, in a good performance. Water gate material is mostly made up of steel or wood which is susceptible to damage and theft .As alternative material of sluice, can be considered the use of composite material which has an advantage can save cost and makes the lighter material is used as an opportunity for alternative irrigation water gate. So it is necessary to research on material other than stell or wood. The methodology that used in this study was test several alternative types of composite material to be used as irrigation water gate in the laboratory and then conduct an analysis of water gate loading. Results of laboratory testing and analysis of the load for a water gate with 50 cm width and maximum height of water about 60 cm showed that type 1, 2 and 3 are able to withstand the load of more than 1000%, 440 % and 320 %, respectively of the load. These results indicate that a composite is strong enough if used as an alternative material for water gate.

Strategi Pengembangan Lahan Irigasi Rawa di Daerah Rawa Pasang Surut Belawang-Kalimantan Selatan Elias Wijaya Panggabean; Bangkit Aditya Wiryawan
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Swamp reclamation project that had been carried out by the Government of Indonesia in Sumatra and Kalimantan few decades ago was primarily aimed at strengthening national food security and transmigration project. However now, contribution of tidal swamp farming to national food security is still low. Instead, nowadays there are more irrigated swamp land that had been converted into oil palm or rubber plantations. Irrigated swamp field of Belawang (Barito Kuala Regent) is one of the area which had been widely converted to rubber plantations. Many factors lead to these phenomena. This study examined the key factors that led to land conversion and followed by formulating strategies to promote the role of irrigated swamp fields in supporting food security. The research was conducted in 2014 under quantitative approach and using SWOT analysis method. Data were obtained through in-depth interview towards key informants. This study suggested that the strategy for the development of irrigated tidal swamp in Belawang should be carried out by remapping the appropriate swamp type for food crops and plantations. Furthermore, planned commodity diversification is the answer for food security and local economic problems.

Evaluasi Ketepatan Pemberian Air Menggunakan Sistem Manajemen Operasi Irigasi (SMOI) di Daerah Irigasi Bondoyudo Dadan Rahmandani; Eko Winar Irianto; Hanhan Ahmad Sofiyuddin; Susi Hidayah; Iwan Hadihardaja; Edy Anto Soentoro
Jurnal Irigasi Vol 12, No 2 (2017): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Irrigation Operation Management System (SMOI) is an irrigation reporting information system designed to automate data transfer and form reporting by utilizing the internet network. SMOI can shorten the time of reporting and facilitate the evaluation of historical data in support of decision making in an Irrigation Area. Nevertheless, this technology has not been tested on field-scale applications especially in multiple districts irrigation area. The study aimed to analyze the accuracy of SMOI calculations and the correctness of water delivery as the impact of the SMOI application. The research was conducted on the application of SMOI in Bondoyudo Irrigation Area, East Java. The analysis of the calculation accuracy is done by verifying and validating the results of SMOI calculation compared to the calculation of manual form. Analysis of water delivery accuracy is done through water balance simulation based on data in Cropping Season I and II year 2016/2017. Based on the result, the calculation workflow, data retrieval, and flow of data distribution among forms on SMOI in accordance with the provisions in PUPR 12/PRT/M/2015. The simulation results show that SMOI can improve the accuracy of water delivery to the predicted value by 40.7% in Cropping Season I and 21.8% in Cropping Season II. However, when compared with actual irrigation water needs, SMOI has not significally to improved water delivery accuracy. This is due to the calculation of water requirements in manual form and SMOI not yet accommodating the variability of actual climatological conditions.

Pemanfaatan Ulang Efluen Industri Pengolahan Susu Sebagai AIr Irigasi Untuk Tanaman Padi Yani Suryani; Syamsul Bahri
Jurnal Irigasi Vol 10, No 2 (2015): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Reuse of wastewater with no heavy-metal contains is potential in irrigation water supply, for example, effluent of milk processing industry. The aim of this study is to analyze the effect of milk industry effluent concentration to paddy growth (Oryza sativa L.). For case study, Ciherang variety with water-saving irrigation system scheme is used in an experimental plot with factorial design of 2 x 4. Several scenarios are applied: two treatments fertilization (with and without fertilization) and four variations of wastewater concentrations (0%, 50%, 75% and 100%). This study shows that the variation of wastewater concentrations with fertilization is not significantly affect the plant height, growth rate, number of tillers, and number of panicles. However it is significantly affect the wet grain weight and dry grain weight. The above result might be affected by the excessive nitrogen compound in the effluent, as the dry grain weight decreases to about 16% to 31%.

Ketidakpastian Model SWAT di Daerah Aliran Sungai Berlahan Sawah Irigasi Hanhan Ahmad Sofiyuddin; Tasuku Kato; Ryota Tsuchiya
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Soil and Water Assessment Tool (SWAT) is a very promising model in an agricultural watershed. However, the modeling approach could include uncertainties in its model structures especially if it is applied in watershed consisting irrigated paddy fields. This is due to SWAT was initially developed to model dry land agricultural area so that there were some different assumptions or model structures compared to common understanding in paddy field. However, the significance of model structure uncertainty to overall model performance is not yet clearly be understood. This study is aimed to analyze the performance, applicability, and uncertainties of SWAT (original/modified) to model watershed containing irrigated paddy field. The analysis was conducted through model structure evaluation and uncertainty analysis using the Sequential Uncertainty Fittin (SUFI-2) method by considering several SWAT model configurations, i.e. original and modified version. As the result, SWAT model structure cannot adequately represent the surface storage, seepage, and irrigation process in paddy field. Through calibration, these inadequate representation could be improved to have a better overall model performance indexes. However, significant difference in performance could be observed through uncertainty analysis. Modified SWAT model have better reliability i.e. narrower uncertainty band especially during low flow period. These results also imply that surface storage, seepage, and irrigation are some of the most important processes for hydrological simulation in irrigated paddy field watershed.

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