PACE Turf - Turfgrass Information Center

Waitea circinata and nitrogen sources

View Larger Brown ring patch symptoms were significantly reduced four days after application of 0.5 lb/1000 sq ft N, in the form of urea (46-0-0). Other N sources (calcium nitrate [15-0-0] or ammonium sulfate [21-0-0])applied at the same rate had less dramatic effects. Primo, whether applied by itself or in combination with N sources, had no effect on disease symptoms. Percent disease was determined by image analysis. Asterisks indicate treatments that were significantly different from untreated plots (Fisher_

Turf Diseases

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