Management and control of water resources is an issue on the rise around the globe, as agriculture lead other activities in terms of percentage usage of water whereby more than 50% is wasted due to evaporation as a result of many factors like; inappropriate irrigation structure design or installation, maintenance or poor scheduling of the structures. This review on “Smart Control Systems for Water Management in Agriculture” is in a way that different approaches and methods of using smart controller and sensors were studied as well as some mathematical relations. When automatic irrigation systems are coupled with new technologies such as; soil moisture sensors (SMSs); rain sensors (RSs); evapotranspiration (ET) – based controllers, wind sensors; web-GIS and remote sensing wireless controllers together with some soft computing techniques like artificial neural networks (ANN), genetic algorithm (GA), fuzzy logic (FL) could lead to optimum utilization of irrigation water resources while maintaining the quality of crops and other agricultural produce. Smart irrigation technology and techniques applications are not only limited to agriculture but also to managing of landscapes and lawns to ensure precision agriculture.
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