Full TGIF Record # 302694
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DOI:10.2134/agronj2018.02.0139
Web URL(s):https://dl.sciencesocieties.org/publications/aj/articles/110/6/2165
    Last checked: 12/06/2018
https://dl.sciencesocieties.org/publications/aj/pdfs/110/6/2165
    Last checked: 12/06/2018
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    Notes: Direct download
Publication Type:
i
Refereed
Author(s):Guertal, E. A.; McElroy, J. S.
Author Affiliation:Dep. of Crop, Soil and Environmental Sciences, Auburn Univ., Auburn, AL
Title:Soil type and phosphorus fertilization affect Poa annua growth and seedhead production
Section:European Turfgrass Society Conference
Other records with the "European Turfgrass Society Conference" Section
Source:Agronomy Journal. Vol. 110, No. 6, November/December 2018, p. 2165-2170.
# of Pages:6
Publishing Information:Madison, Wisconsin: American Society of Agronomy
Keywords:TIC Keywords: Fertilization rates; Growth rate; Phosphorus fertilizers; Poa annua; Seedhead development; Soil fertility; Soil types (Chemical)
Abstract/Contents:"Annual bluegrass (Poa annua L.) is a winter annual weed in southern landscapes. Previous research indicated that soil P or pH affects growth of annual bluegrass, which could provide tools for integrated control of a plant considered a weed in some turfgrass systems. The objective of this work was to evaluate the effects of P rate and soil type on growth parameters of annual bluegrass. This greenhouse study evaluated rates of P (0, 25, 50, 99, and 197 kg P ha-1) on 3 soil types (silty clay loam, loamy sand, and sand/peat [90:10% v/v] greensmix). Plant height, days to first seedhead (panicle), branches per panicle, seeds per branch, seed number and weight, and shoot and root dry weight data were collected by hand sampling and counting. Annual bluegrass seed was affected by both soil type and rate of P fertilization. Annual bluegrass plants grown in greensmix that received lower or zero P were 25% smaller than fertilized, took a week longer to produce a visible seed head, and had seed of reduced weight. Number of panicles, branches per panicle, seeds per panicle, and seeds per panicle branch were all unaffected by P rate, but often by soil type, where there were fewer of all when grown in greensmix. Avoidance of excessive P fertilization and subsequent accumulation of soil P may be an additional tool for the management and reduction of annual bluegrass."
Language:English
References:27
See Also:See also interpretive summary "T is for turfgrass, and P is for Poa" Golf Course Management, 86(12) December 2018, p. 74, R=303143. R=303143
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Guertal, E. A., and J. S. McElroy. 2018. Soil type and phosphorus fertilization affect Poa annua growth and seedhead production. Agron. J. 110(6):p. 2165-2170.
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DOI: 10.2134/agronj2018.02.0139
Web URL(s):
https://dl.sciencesocieties.org/publications/aj/articles/110/6/2165
    Last checked: 12/06/2018
https://dl.sciencesocieties.org/publications/aj/pdfs/110/6/2165
    Last checked: 12/06/2018
    Requires: PDF Reader
    Notes: Direct download
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