Full TGIF Record # 213418
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Web URL(s):https://scisoc.confex.com/crops/2012am/webprogram/Paper74015.html
    Last checked: 11/21/2012
Publication Type:
Content Type:Abstract or Summary only
Author(s):Bristow, Caleb; Guertal, Elizabeth A.; McElroy, J. Scott
Author Affiliation:Guertal: Dept. of Agronomy & Soils; McElroy: Agronomy and Soils; Bristow: Auburn University, Auburn, AL
Title:Phosphorus fertilization effects on annual bluegrass
Section:Management of turfgrass, thatch, soil and irrigation
Other records with the "Management of turfgrass, thatch, soil and irrigation" Section
Meeting Info.:Cincinnati, Ohio: October 21-24, 2012
Source:ASA, CSSA and SSSA Annual Meetings [2012]. 2012, p. 74015.
Publishing Information:Madison, Wisconsin: American Society of Agronomy and Crop Science Society of America and Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Germination; Phosphorus; Poa annua control; Preemergence herbicides; Weed control; Winter annual weeds
Abstract/Contents:"Annual bluegrass (Poa anna L.) is a common and persistent winter annual weed in southern landscapes. Control of this weed often depends on the effectiveness of preemergent herbicides. However, previous research has indicated that soil variables such as phosphorus (P) or pH may affect populations of annual bluegrass. Typically, previous work was performed on Poa annua/bentgrass swards, with emphasis placed on the dual management of those grasses, rather than the elimination of Poa annua. Thus, the objective of this work was to evaluate the effect of P rate on various growth parameters of Poa anna, seeking management methods for reduction of Poa annua. Conducted two times in the greenhouse, this study evaluated rates of P (0, 56, 112, 224 and 448 kg P ha-1) applied to 3 soil types (sandy clay, loamy sand and a sand/peat mix), with 5 replications. Poa annua was seeded into each pot, and collected data included number of germinated seedlings, plant height, days to first seedhead, panicles per seedhead and viability and weight of produced seed. In general, as P rate increased plant size and seed production also increased. Poa annua grown in soil with lower rates of added P were shorter and less vigorous."
See Also:Updated version appears in Golfdom, 69(5) May 2013, p. 33, R=220762. R=220762
Note:This item is an abstract only
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bristow, C., E. A. Guertal, and J. S. McElroy. 2012. Phosphorus fertilization effects on annual bluegrass. Int. Ann. Meet. p. 74015.
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    Last checked: 11/21/2012
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