Full TGIF Record # 37491
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Publication Type:
Author(s):Watkins, John; Wit, Leonard
Title:Effect of nitrogen rate and carrier on the suppression of dollar spot on penncross bentgrass, 1994
Source:Turfgrass Research Report for 1994 [Nebraska]. 1994, p. 51.
# of Pages:1
Publishing Information:[Lincoln, NE]: University of Nebraska
Keywords:TIC Keywords: Fertilizers; Nitrogen; Agrostis stolonifera; Fertilization; Application rates; Dollar spot; Suppression; Urea; Disease development; Visual evaluation; Turfgrass quality
Cultivar Names:Penncross
Abstract/Contents:"Five nitrogen treatments consisting of 0, 2, 4, or 8 lb actual N/1000ft² were applied to plots of Penncross creeping bentgrass to evaluate their effect on dollar spot. Urea, 46-0-0, was used as the quick release nitrogen fertilizer and sulfur-coated urea, 32-0-0, was used as the slow release source. Fertilizer treatments were initiated 25 May and continued monthly until 21 Sep...Each fertilizer treatment was replicated four times in a randomized complete block design...Dollar spot developed slowly from Jun through mid-Jul and then rapidly from late Jul and through Aug. The disease was at a moderate level by late Jul, but was being significantly suppressed by 4, 6 and 8 lb N/1000 ft² as compared to no nitrogen. The 2 lb N/1000 ft² urea treatment also had significantly less dollar spot than the 0 or 2 lb N/1000 ft² sulfur-coated urea treatments. By late Aug dollar spot was severe but was again being effectively suppressed by the 4, 6, and 8 lb [N]/1000 ft² nitrogen rates with no significant differences occurring between the urea and sulfur-coated urea carries."
Reprint appears in Biological and Cultural Tests for Control of Plant Diseases. Vol. 10, 1995, p. 37
Geographic Terms:Nebraska
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Watkins, J., and L. Wit. 1994. Effect of nitrogen rate and carrier on the suppression of dollar spot on penncross bentgrass, 1994. Turfgrass Res. Rep. Nebr. p. 51.
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