That you can fertilize your landscape while you irrigate? It is called FERTIGATION. Fertigation allows the landscape to absorb UP TO 90% OF THE APPLIED NUTRIENTS, while granular or dry fertilizer applications typically result in absorption rates of 10% to 40%.
Daily feeding in small, scientifically consistent doses leads to healthier, more beautiful growth. Fertigation will even fertilize your trees and shrubs in your desertscape as well as those yards that have lawn.