Reskiana Saefuddin, Astiah Amir, Indera Sakti Nasution, Fachruddin Fachruddin, Fadli Idris, Meylis Safriani, Mawaddah Putri Arisma Siregar, Satyanto K. Saptomo, Chusnul Arif, Muhamad Askari
Increasing water demand and the adverse effects of climate change have reduced the availability of agricultural water in regions experiencing scarcity. As a result, efficient irrigation system design and management are essential for conserving water. This study focused on optimizing subsurface drip irrigation (SDI) design and operation to enhance water use efficiency and nutrient absorption. The HYDRUS (2D/3D) simulation tool was utilized to model soil water dynamics. Calibration and validation were performed through field experiments on chili crops, comparing two SDI configurations: conventional dripline emitters and ring-shaped emitters. Soil moisture levels were tracked at depths of 15, 30, 45, and 60 cm using sensor probes. The model-generated moisture data at these depths were then compared with actual probe readings. The simulation results demonstrated that the model reliably predicted soil moisture distribution, with RMSE values ranging from 0.0504 to 0.0058. This confirms HYDRUS-2D’s accuracy in simulating subsurface water flow around emitters. Additionally, root water uptake was most effective near the SDI emitters. The study concludes that optimal SDI design should take into account plant root system size, emitter placement depth, and soil characteristics. © Published under licence by IOP Publishing Ltd.
Research Center for Limnology and Water Resources, The National Research and Innovation Agency, Jl. Raya Jakarta-Bogor km 46, Bogor, Indonesia; Department of Civil Engineering, The Faculty of Engineering, Universitas Teuku Umar, Meulaboh, Indonesia; Department of Agricultural Engineering, The Faculty of Agriculture, Universitas Syiah Kuala, Banda Aceh, Indonesia; Department of Agrotechnology, The Faculty of Agriculture, Universitas Teuku Umar, Meulaboh, Indonesia; Department of Civil and Environmental Engineering, Bogor Agricultural University, Bogor, Indonesia; Faculty of Sustainable Agriculture, Univeristi Malaysia Sabah, Sabah, Malaysia
Research at a Glance
Register to unlock
Topics & SDG Alignment
Register to unlock
Collaboration
Register to unlock
Author Profile (Selected)
Register to unlock
References Overview
Register to unlock
Journal & Source
Register to unlock
Metadata & Integrity
Register to unlock