Evaluation of Existing Drip Irrigation System Using the Coupled Source-sink Model Approach

Asif Raza Noonari; Irfan Ahmed Shaikh; Ghulam Hussain Awan; Muhammad Waseem Noonari; Mohsin Ali Faraz Jokhio

Evaluation of Existing Drip Irrigation System Using the Coupled Source-sink Model Approach

Authors

Asif Raza Noonari Student, Irrigation Drainage System & FAE Sindh Agriculture University Pakistan
Irfan Ahmed Shaikh Professor, Irrigation Drainage System & FAE Sindh Agriculture University, Pakistan.
Ghulam Hussain Awan Student, Land and Water Management & FAE Sindh Agriculture University, Pakistan
Muhammad Waseem Noonari Department of Geography, Faculty of Physical Science,Shah Abdul Latif University Khairpur, Pakistan
Mohsin Ali Faraz Jokhio Student, Land and Water Management & FAE Sindh Agriculture University, Pakistan

Keywords:

Drip Irrigation System, Source-sink Model, Emitter, Soil Parameters, Roots Radius

Abstract

Drip irrigation is a highly efficient water delivery method in agriculture, where water is supplied directly to the plant roots through a network of tubes, pipes, and emitters. This technique minimizes water wastage, reduces evaporation, and ensures precise moisture control, promoting healthy crop growth. Drip irrigation is especially vital in arid regions or areas facing water scarcity by conserving water. It also enhances crop yield, reduces weed growth, and lowers labor costs. As the global demand for food rises amid environmental challenges, drip irrigation is a sustainable solution that optimizes resource use and boosts agricultural productivity. This study uses the coupled source-sink model approach to evaluate drip irrigation efficiency by analyzing water distribution, plant uptake, and system performance for optimization. A modeling approach was used to assess the performance of the exciting drip irrigation system. Soil Parameters data were acquired/collected from the farms using standard methods. The DIDAS model was used to assess the performance of the already drip irrigation system in the study area. This study investigated the influence of root radius, emitter spacing, and drip irrigation schedules on relative water use uptake (RWUR) in five different farm scenarios. The study concludes that emitter spacing in drip irrigation systems is a key factor for the effective running of drip irrigation systems. Root radius plays a significant role in RWUR. Larger root systems are better equipped to access water from the surrounding soil, reducing their reliance on emitters.

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Evaluation of Existing Drip Irrigation System Using the Coupled Source-sink Model Approach