Full TGIF Record # 4998
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Web URL(s):https://dl.sciencesocieties.org/publications/aj/pdfs/77/3/AJ0770030476
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Publication Type:
i
Refereed
Author(s):McCarty, L. B.; DiPaola, J. M.; Lewis, W. M.; Gilbert, W. B.
Author Affiliation:McCarty: Former Research Assistant; DiPaola: Assistant Professor; Lewis and Gilbert: Professors, Crop Science, North Carolina State University, Raleign, North Carolina
Title:Tall fescue response to plant growth retardants and fertilizer sources
Source:Agronomy Journal. Vol. 77, No. 3, May/June 1985, p. 476-480.
Publishing Information:Madison, WI: American Society of Agronomy
# of Pages:5
Keywords:TIC Keywords: Application rates; Roadside turf; Color; Height; Seedhead inhibition; Density; Festuca arundinacea; Phytotoxicity; Mefluidide; Maleic hydrazide; Flurprimidol; Growth retardants; Fertilizers; Root weight
Abstract/Contents:"Plant growth retardant applications have been reported to reduce mowing requirements of tall fescue (Festuca arundinacea. Schreb.), but turf response to retardants under various fertility regimes has not been adequately explored. The objective of this study was to evaluate the effects of three spring-applied growth retardants {mefluidide, (N-[2,4-dimethyl-5-[[(trifluoromethyl)sulfonyl]amino] phenyl]acetamide), at 0.14 kg ha-1; maleic hydrayide (MH) (1,2-dihydro-3,6-pyridazinedione), at 4.5 kg ha-1; and a combination of mefluidide plus flurprimidol, (α-(1-methylethyl)-α-[4-(trifluoromethoxy)phenyl]-5- pyrimidinemethanol), at 0.3 + 0.8 kg ha-1} and fertilizer sources and rates on the color, height, seedhead suppression, root growth and stand density of 'Kentucky 31' tall fescue. The three fertilizer sources included: a) 2-1-1 ratio ammonium sulfate blend, 160 g N kg-1; b) ammonium nitrate, 330 g N kg-1; and c) an ammonium sulfate liquor, ASL, 70 g N kg-1. Each fertilizer source was applied at 39 and 78 kg N ha-1 in October 1981 and 1982. A single ASL treatment was also applied in 1981 at 78 kg N ha-1. The field plot was a Typic Hapudalt Clayey, kaolinitic, thermic (Cecil gravely sandy loam) soil. Mefluidide + flurprimidol and MH treatments reduced cumulative turf height 40% and suppressed seedhead formation up to 95% for 6 to 8 weeks. Mefluidide alone reduced turf height by 20% during this period. Fall fertilization of tall fescue improved turf color following spring growth retardant application. Interactions were not observed between fertilizer sources and growth retardant treatments, except for cumulative turf height at 7 and 9 weeks after 1983 treatment. Turf responses to fertilizer sources were equivalent, but higher rates of application improved color and increased turf height and seedhead numbers."
Language:English
References:17
See Also:See also summary of article "Tall fescue response to growth retardants, fertilizers studied" California Turfgrass Culture, 36(1,2,3,4) 1986, p. 5 R=10191 R=10191
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCarty, L. B., J. M. DiPaola, W. M. Lewis, and W. B. Gilbert. 1985. Tall fescue response to plant growth retardants and fertilizer sources. Agron. J. 77(3):p. 476-480.
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https://dl.sciencesocieties.org/publications/aj/pdfs/77/3/AJ0770030476
    Last checked: 12/09/2016
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    Access conditions: Item is within a limited-access website
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