Automatically time-controlled underground lawn irrigation systems have become readily available in Kentucky. When the systems are properly designed and installed, they can be effectively used to grow high-quality turf. In addition to applying necessary water for plant growth, proper irrigation can
- provide water to move pesticides and fertilizers to the root zone,
- remove frost,
- help reduce thatch by maintaining a moist environment for microbial degradation,
- cool the plant surface and air that surrounds the home or commercial building, through the process of plant evapotranspiration.
Powell, A. J. Jr., "Lawn Irrigation with Automatic Systems" (1986). Agriculture and Natural Resources Publications. Paper 48.