Irrigation systems are more efficient than ever before.
The concept of using soil moisture sensors to determine irrigation needs has also moved forward with literally dozens of widgets to plug into the soil. As with any consumer walking into a local supermarket, irrigation professionals today face an overwhelming number of choices when it comes to the variety of sensors used for making better irrigation decisions. All three types of sensors continue to be extensively used today. Gypsum blocks work on the simple principle of electrical resistance. As the soil dries, resistance increases.