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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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Analisis Hidrodinamik Rotary Distributor Hidraulik Teknologi Ega-Sattira dan Pengembangannya untuk Irigasi Tetes-Putar Eko Winar Irianto
Jurnal Irigasi Vol 11, No 1 (2016): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Trickling filter is a wastewater treatment technology which has high effiency on organics reduction but low energy on its operation. Ega Sattira is the combined technology between constructed wetland and trickling filter technologies. One of the success on its treatment process is due to the hydraulic-rotary distributor. Hydrodynamic analysis on hydraulic-rotary distributor is required for making better and more efficient on Ega-Sattira’s operation and process system. The research objectives are: (a) to analize and formulate the hydrodynamic model on movement-force mechanisme of hydraulic-rotary distributor on Ega Sattira technology; (b) to utilize the the phenomenon of hydraulic-rotary distributor as an alternatif of drip-rotary irrigation technique which is part of water efficient irrigation; 3) to propose the basic desain on drip-rotary irrigation system that is easy, cost efficient and efficient in operation and maintenance. The results of hydrodynamic analysis shows that rotation number per time unit is directly proportional to the gravity acceleration, friction coefficient and root of the water level in the tank and critical flow coefficient, but inversely proportional to the diameter of rotary-distributor pipe. Calibration trial result between counting rotation and actual rotation resulted the equation Y= 0,0014X dengan r2= 0,82. The formulation result can be applied to the planning of hydraulic-rotary irrigation system supporting the technology of water-saving irrigation.

Penentuan Kelembaban Tanah Optimum Untuk Budidaya Padi Sawah SRI (System Of Rice Intensification) Menggunakan Algoritma Genetika Chusnul Arif; Budi Indra Setiawan; Masaru Mizoguchi
Jurnal Irigasi Vol 9, No 1 (2014): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

In this study, an optimal soil moisture level that maximizes both yield and water productivity of system of rice intensification (SRI) paddy field was simulated by genetic algorithms (GA) model. The GA model was performed to find an optimal combination of soil moisture levels according to the empirical data during three cropping seasons at Nusantara Organic SRI Center (NOSC), Nagrak Sukabumi, West Java. Here, we classified soil moisture level into three levels i.e. wet (W), medium (M) or dry (D) based on the soil water retention curve. As the results, the optimal soil moisture was a combination of wet, wet, medium, and dry levels of soil moisture for initial, crop development, mid-season and late season growth stages, respectively. The wet level in the initial and crop development growth stages should be achieved providing enough water for the plant to develop root, stem and tiller, and then the field can be drained into the medium level with the irrigation threshold of field capacity to avoid spikelet sterility in the mid-season stage, and finally, let the field in the dry level to save more water in the late season stage when plant water requirement is minimum. By this scenario, it was simulated that the yield can be increased up to 4.40% and water productivity up to 8.40% with saving water up to 12.28% compared to the empirical data.

Peningkatan Resapan Air Tanah dengan Saluran Resapan dan Rorak untuk Meningkatkan Produktivitas Belimbing Manis (Studi Kasus di Kota Depok) Yanto Surdianto; Budi Indra Setiawan; Prastowo Prastowo; Satyanto Krido Saptomo
Jurnal Irigasi Vol 7, No 1 (2012): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Problem faced by star fruit farmers in Depok, West Java, is water availability relying only on rainfed. Therefore, research related to water conservation technique for optimum utilization of rain water and runoff at the starfruit orchard was conducted. The objectives of the research were: 1) The relationship between rainfall, evapotranspiration with starfruit productivity, 2) To find out the effects of soil water absoption on starfruit productivity , and 3) To develope water balance analytical model without runoff for sweet starfruit orchard. In this experiment the water table was approximately 16 m from soil surface, no irrigation was used and water storage canals equipped with silt pits were constructed so that runoff component and contribution of water capillarity movement were zero. The research results showed that: 1) The rainfall and evapotranspiration had influence on the starfruit productivity; 2) The relatively high rainfall followed by high soil water content at the rooting zone, ranging from 0,429 to 0,458 m3/m3, enabled the star fruit to have year-round production with four times harvesting; 3) The water balance analytical model without runoff could nicely simulate the soil water content at the rooting zone with R2 of 0,83.

Kajian Bangunan Bagi Sadap Proporsional Bentuk Numbak di Laboratorium - Subari; Indri S. Setianingwulan; Bambang Misgiyanta
Jurnal Irigasi Vol 8, No 1 (2013): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

The use of the construction for and or diversion structure mostly in the field equipped with a regulating gate, part of the equipment was also used as a proxy for the gate at once. If it does not include the equipment is also equipped with a measuring construction behind it. However, the performance and condition of the existing irrigation are mostly in poor condition, especially the check structure and regulating, it is necessary to divide the structure to change proportionally. In addition, for remote areas and far from the reach of official water control for the proporsional diversion structure operation was helpful disproportionate distribution of irrigation water. The type of the structure could be made for two alternatives, namely the sidewas of diversion and numbak proporsional diversion structure type. The type has a weakness sideways velocity coming straight towards being greater than the lateral direction, so that if the structure is applied proportionately less accurate. While the type has the advantage of speed comes numbak flow is the same for each canal. Type for numbak structure is building for secondary or sub.secondary canal . The purpose of this study to miking of prototype is to obtain of comparison discharge each canal at numbah proportional diversion structure type 1:2:1 proportion. Some test parameters and observations include intake discharge, discharge in each canal, the accuracy threshold measure is used, the validity of the distribution of water in free flow and submerged conditions. Based on hydraulic testing building proportional to the flow conditions for free and submerged flow, proportional according for KP-04 can divide discharge in accordance with the plan. Tests to obtained the proportional distribution of water will be disturbed at low discharge. But it will not affect the high discharge.

Sebelas Syarat Penentuan Lokasi Bendung Irigasi - Soekrasno
Jurnal Irigasi Vol 10, No 1 (2015): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Irrigation weir failure beside caused by inaccurate survey and investigation, not thoroughly design, poor construction implementation, poor operation and maintenance, but also caused by wrong irrigation weir site selection. Initial factor influencing irrigation weir performances is irrigation weir site selection. Weir would strong enough against external force, flood impulse, local scouring, river degradation in case of accurate weir site selection.This paper discusses eleven conditions in selecting irrigation weir site in order to obtain better weir performance, i.e. : topographic condition, geotechnical consideration, hydraulic, river regime, primary canal, weir site space, irrigation service area, catchment area, assesment, economic justification, stakeholder acceptance.Analyse of correlation between weir site selection during design and weir performance, to be combined with weir observation by means of directly site inspection and communication with weir operator has been carried out to justify those eleven conditions weir site selection.Generally weir site mis-selection caused by among others are: irrigation engineer’s incapability, less budget, time and manpower, and less professional engineer.

Irigasi Curah Otomatis Berbasis Sistem Pengendali Mikro Satyanto Krido Saptomo; Rahmat Isnain; Budi Indra Setiawan
Jurnal Irigasi Vol 8, No 2 (2013): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Determination of watering interval and moisture conditioning in sprinkle irrigation requires a supporting technology to optimize the irrigation. Arduino UNO microcontroller was used as an automatic controller that determine in watering based on soil moisture conditions determined by soil moisture sensor. The automatic sprinkle irrigation uses pF parameters to conditioning the soil moisture. Soil potential pF value between 4.2 ≤ pF <2, and are equivalent to the percentage of soil moisture 38.5%≤ soil moisture < 28.7%, were used aslower and upper set point in the automatic irrigation that operates solenoid valve for regulating irrigation water flow from water tank. The result shows that the automatic sprinkle irrigation system could keep the soil moisture between the desired setpoint range and thus can be applied for wider use.

Evaluasi Koefisien Tanaman Padi Pada Berbagai Perlakuan Muka Air Nur Aini Iswati Hasanah; Budi Indra Setiawan; Chusnul Arif; Slamet Widodo
Jurnal Irigasi Vol 10, No 2 (2015): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Paddy is the main agricultural commodity in Indonesia that needs a large amount of water. Accurate prediction of crop water use is essential to have an efficient irrigation system. The actual evapotranspiration (ETc) is an important factor for estimating water use. Moreover, crop coefficient (Kc) is one of the important parameters in ETc calculation. In this study, Kc of paddy is estimated by using experimental pots under various water tables treatments. The water table is controlled by using mariotte tube and set at -12 cm, -7 cm, -5 cm, -3 cm, 0 cm, and +2 cm from the soil surface. From the experimental sets, the value Kc is calculated by using modified water balance equation and Kalman Filter. The result shows that water table treatment in paddy farming influences soil moisture ( ) and soil temperature (Tsoil). Soil physic parameter fluctuation due to water table treatment affects the plant growth and potential evapotranspiration. Kc value at each water table treatment is different, and varies with plant growth phase. The average Kc for all water table treatments are 0.77-1.27 (initial season), 0.90-1.11 (crop development), 1.10-1.39 (mid-season), and 1.17-1.40 (late season).

Pengaruh Kualitas Sedimen Dasar Terhadap Karakteristik Lingkungan Keairan, Studi Kasus: Saluran Tarum Barat Moelyadi Moelyo; Januar Tisa; Bambang Priadie
Jurnal Irigasi Vol 7, No 1 (2012): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Erosion and sedimentation are classical problems in water resources management. However, these problems become critical when related with pollution issues of the water environment, due to the increase of human activities and productivity in the catchment area included also the irrigation channels as well as West Tarum Canal that empty into the catchment. Related with the impact to the water environment, the study of characterize of bed sediment pollution becomes more complicated considering the great variety of critical areas, type and source of pollution as heavy metals in an from upper to lower areas of BTB1-BTB 46a. In the context of impact of such pollution, deposition of material pollutants in the West Tarum Canal, WTC bed sediment is selected as case study since pollutants in this canal are structured naturally in the bed sediment and distributed from upper to lower areas. The study methods such as, sediment sampling, pretreatment analysis, laboratory analysis dan data evaluation with the criteria of Japan Environment Quality Stnadar for Soil Pollution (1994). Influence of bed sediment quality to water resources can be significant as indicated by the variety of type, amount and location of pollutants in the WTC bed sediment (mud).

Variabilitas Curah Hujan dan Suhu Udara serta Pengaruhnya Terhadap Neraca Air Irigasi di Daerah Aliran Sungai Ciliwung Dwi Ariyani
Jurnal Irigasi Vol 12, No 2 (2017): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Climate change is an issue that is being faced by the global community, which affects the variability of temperature and rainfall. An increase in air temperature may lead to a decrease in the dependable flow or availability of water. Related to this matter, this research aim to identify the trend of air temperature change and rainfall on water availability in Ciliwung Watershed for 30 years (1985 to 2015). Analysis of the increase in trend of climate variables is done by using Mann Kendall Trend Test method, water balance analysis using surplus deficit balance method, and water availability analysis using Mock method. The results showed no change in rainfall variability. The average temperature rose by 0.20C, the minimum temperature increased by 0.90C, and the maximum temperature rose by 0.80C over the last 30 years. Water availability decreased by 2 m3/s or by 2,000 l/s during the last 30 years. Water balance analysis then conducted using the maximum irrigation water demand at the intake of 8.46 l/s/ha and the irrigation area of Katulampa Weir which was reduced from 1,288 ha to 333 ha (1985 to 2015). The results of this analysis indicate that there is no water balance deficit for agricultural land in Ciliwung Watershed. The result of this research is expected to support the management of water resources in the upstream Ciliwung Watershed.

Sistem Kontrol Irigasi Otomatis Nirkabel - Wiranto; Budi Indra Setiawan; Satyanto Krido Saptomo
Jurnal Irigasi Vol 9, No 2 (2014): Jurnal Irigasi
Publisher : Balai Teknik Irigasi

Irrigation water provides on agricultural land should be used optimally, that automatic irrigation system that is able to provide crop water with the expected conditions are needed. For wide area the automatic irrigation system a use wireless sensor network system (WSN). The advantages of this system such as easy data download and the device is easy to install so the user will convenient to monitoring the entire irrigated area. In this research, XBee / XBee pro was used as wireless system devices with radio communication system and GSM modem device for SMS communication system. The objective of this research is to improve the efficiency of irrigation systems for wireless control. The benefits of this study is to provide an alternative automatic irrigation system for the region with limited water availability because the system is able to regulate irrigation water allocation according to crop needs (efficiency of irrigation water use).

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