Full TGIF Record # 232151
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DOI:10.1080/00103620902960690
Web URL(s):http://www.tandfonline.com/doi/pdf/10.1080/00103620902960690
    Last checked: 11/06/2013
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Publication Type:
i
Report
Author(s):Liu, Min; Sartain, J. B.; Trenholm, L. E.; Harris, W. G.
Author Affiliation:Liu, Sartain, and Garris: Soil and Water Science Department; Trenholm: Environment Horticultural Department, University of Florida, Gainesville, Florida, USA
Title:Comparison of soil P test procedures for St. Augustinegrass
Source:Communications in Soil Science and Plant Analysis. Vol. 40, No. (13-14), 2009, p. 2234-2247.
# of Pages:14
Publishing Information:New York, New York: Marcel Dekker
Related Web URL:http://www.tandfonline.com/doi/full/10.1080/00103620902960690
    Last checked: 11/06/2013
    Notes: Abstract only
Keywords:TIC Keywords: Application timing; Phosphorus fertilizers; Soil testing; Stenotaphrum secundatum; Tissue testing
Abstract/Contents:"St. Augustinegrass [Stenotaphrum secondatum (Walt.) Kuntze] is a home lawn grass widely used in the southern United States. At present, phosphorus (P) fertilization of St. Augustinegrass is based primarily on Mehlich 1 P test. One criticism of Mehlich 1 extractant is that it extracts some fraction of soil P pool that is not available to plants, whereas, iron (Fe) oxide P and water-extractable P methods are reported to be better related to plant growth in some cases. Literature relative to the soil test procedure comparison for St. Augustinegrass was not found. The objective of this study was to evaluate Mehlich 1 P, Fe oxide P, and water-extractable P to identify the most suitable soil test method for St. Augustinegrass growth. Established pots of 'Floratam' were subjected to P application of 0, 0.14, 0.27, 0.54, and 1.07 g m-2 every 4 wk for 12 wk. Measurements included tissue growth rates, tissue P concentration, soil Mehlich 1 P, Fe oxide P, and water?extractable P concentrations. Phosphorus application increased soil test P concentrations. Soil Mehlich 1 P, Fe oxide P, and water-extractable P concentrations were closely correlated to each other. Three soil test P levels and tissue P concentrations were highly correlated with Mehlich 1 P, which best predicted tissue P levels. Three soil test P levels were also closely correlated to the St. Augustinegrass top growth rate. Critical minimum Fe oxide P and water-extractable P concentration was 3 mg kg-1. Overall, Mehlich 1 P was the best soil P test for St. Augustinegrass among the three extractants tested."
Language:English
References:18
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Liu, M., J. B. Sartain, L. E. Trenholm, and W. G. Harris. 2009. Comparison of soil P test procedures for St. Augustinegrass. Commun. Soil. Sci. Plant Anal. 40((13-14)):p. 2234-2247.
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DOI: 10.1080/00103620902960690
Web URL(s):
http://www.tandfonline.com/doi/pdf/10.1080/00103620902960690
    Last checked: 11/06/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/full/10.1080/00103620902960690#tabModule
    Last checked: 11/08/2013
    Access conditions: Item is within a limited access website
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