GCM
slow-release fertilizer (15-25-10) containing both poly-coated and sulfur-coated urea. There were also untreated control plots. Fertilizers were applied monthly from April to early June, at 1 pound N/1,000 square feet per applica
tion. Plot size was 3 by 3 meters (about 100 square feet).

In the first year, there were 10 replicates (plots) per fertilizer across two fairways. In 2001, treatments were replicated 15 times across three fairways. Different

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