A smart irrigation system is a technology designed to optimize water usage for agriculture and landscaping. It uses sensors, weather data, and soil moisture levels to determine the precise amount of water needed for plants. This helps conserve water and ensures that plants receive the right amount of hydration, promoting healthier growth. These systems can be automated and controlled remotely, often through a smartphone app. By integrating with IoT (Internet of Things) devices, smart irrigation systems can adjust watering schedules based on real-time conditions, reducing waste and improving efficiency in water management.