Full TGIF Record # 10931
Item 1 of 1
Publication Type:
i
Refereed
Author(s):Dest, William M.; Guillard, K.
Author Affiliation:Dest: Associate Extension Professor; Guillard: Research Agronomist, Department of Plant Science, University of Connecticut, Storrs, Connecticut
Title:Nitrogen and phosphorus nutritional influence on bentgrass - annual bluegrass community composition
Section:Production and culture
Other records with the "Production and culture" Section
Source:Journal of the American Society for Horticultural Science. Vol. 112, No. 5, September 1987, p. 769-773.
Publishing Information:Westport, Conn.: AVI Publishing Co.
# of Pages:5
Keywords:TIC Keywords: Shoot density; Nitrogen; Phosphorus; Agrostis; Poa annua; Botanical composition; Quality evaluation; Leaf tissue
Abstract/Contents:"This study evaluated the effect of N and P fertilization on the change in species composition of a bentgrass (Agrostis spp.) and annual bluegrass (Poa annua L.) turf. Species composition was determined by a square grid method and visual estimate of percent bentgrass and plant separations. Bentgrass population significantly increased in those areas from which N was withheld for 3 years compared to areas that were fertilized with N. Phosphorus fertilizer treatments had no effect on species composition. Except for one of the three ratings made in 1982, turf quality was not significantly reduced by withholding N. Quality had begun to improve by 1984 on the no-N plots compared to the N-fertilized plots. This change was associated with increased bentgrass populations. There was a significant correlation between the square grid and visual estimate method used to evaluate the change in species composition in 1982, 1983, and 1984 (r = 0.84, 0.87, and 0.88, respectively). Although the N content of the leaf tissue was greater in the bentgrass tissue compared with annual bluegrass, leaf tissue concentrations were within or above the sufficiency range for grasses. This study has shown that withholding N fertilization in some years under certain conditions gives bentgrass a competitive advantage over annual bluegrass without lessening turf quality."
Language:English
References:18
See Also:See also related article "[Bentgrass on fairways without N fertilization]" International Turfgrass Bulletin, Vol. 241 July 2008, p. 33 R=138715 R=138715
Note:Brief summary appears in Carolinas Newsletter, `ovember/December 1987, Vol. 23(6), p 12.
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Dest, W. M., and K. Guillard. 1987. Nitrogen and phosphorus nutritional influence on bentgrass - annual bluegrass community composition. J. Am. Soc. Hortic. Sci. 112(5):p. 769-773.
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