The effects of simulated grazing on concentrations of N, P, and total suspended solids (TSS) in runoff from fescue dominated pastures were measured at the University of Kentucky Maine Chance Agriculture Experiment Station. Ten simulated grazing treatments combining 4 forage management treatments (ungrazed-no mowing, mowed to 10 cm, mowed to 20 cm, and overgrazed-mowed to 2.5 cm) and 3 fertilization rates (control-no fertilizer, manure alone and manure+urine) were applied to fescue dominated plots. Runoff samples were taken and tested for N, P and TSS after each simulated rainfall immediately following the 7 day application period and the 21 day rest period.
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