Journal of NACAA

Nitrogen Options to Increase Yield in Fall Stockpiled Cool Season Grass in Eastern Ohio

ISSN 2158-9429

Volume 16, Issue 1 - June 2023

Editor: Linda Chalker-Scott


The objective of this three-year study was to determine the effects of yield and quality by adding urea, urea with Agrotain®, and ammonium sulfate by applying them to cool season grass, primarily tall fescue (Festuca arundinacea Schreb) and orchardgrass (Dactylis glomerata L.). The study was a randomized complete block design with four treatments (control, 100 pounds per acre (lb/ac) urea, 100 lb/ac urea plus Agrotain®, and 219 lb/ac ammonium sulfate) four replications of each treatment at three locations in Eastern Ohio for three years. Nitrogen (N) treatments were applied in early August, all plots were harvested in early November. Average forage yields increased for each of the three N applications, yields ranged from 2497 lb dry matter (DM)/ac for the control, 3101 lbs DM/ac with urea alone, 3381 lbs DM/ac urea with Agrotain®, and 3252 lbs DM/ac using ammonium sulfate. In summary, N applied in early August increased forage yield regardless of source with no differences in quality.


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