University of Arizona Study Proves the Power of PRS

(Date Published: April 2015)

Location: Karsten Turf Research Facility, University of Arizona

Site Type: Commercial

The Challenge: Compare the performance characteristics of rotors and sprays with PRS technology vs. similar products without.

Performed By: University of Arizona Department of Soil, Water and Environmental Science

The Study: Eight different turf plots were evaluated (4 with PRS and 4 without) at different inlet pressure levels. In each case, 10 different tests were conducted measuring precipitation rate (PR), application efficiency (AE) and distribution uniformity (DU). Industry standard tests for DU included the use of “catch cans” with calculations made for low quarter distribution uniformity (DULQ) and low half distribution uniformity (DUHL).

The Results: PRS showed marked improvements in the three key performance characteristics across the body of tests, particularly at inlet pressure levels that exceed the manufacturer recommended level.

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