Full TGIF Record # 122847
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Web URL(s):http://www.informaworld.com/smpp/section?content=a771050070&fulltext=713240928
    Last checked: 03/23/2007
    Access conditions: Item is within a limited-access website
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Author(s):Murray, Thomas P.; Darrah, Charles H. III; Clapp, John G. Jr.
Author Affiliation:Murray: Department of Chemistry, University of North Alabama, Florence, Alabama; Darrah: CLC Laboratories, Westerville, Ohio; Clapp: Technical Agriculture Products, Tessenderlo Kerley, Greensboro, North Carolina
Title:Vapor pressure osmometry for prediction of turf burn from foliar fertilization
Source:Communications in Soil Science and Plant Analysis. Vol. 38, No. 3/4, 2007, p. 337-346.
# of Pages:10
Publishing Information:New York, NY: Marcel Dekker
Keywords:TIC Keywords: Salt index; Ureaformaldehyde; Vapor pressure; Burn down; Fertilizer injury; Necrosis; Nitrogen; Foliage; Fertilization rates; Relationships; Fertilization; Fertilizers
Abstract/Contents:"Application of fertilizer nutrients to plant foliage, especially turf grasses, is a standard method of fertilization. Materials must be safe and efficient for foliar application. Urea formaldehyde reaction products have proven to be such a source of nitrogen (N). The "salt index" has been used to classify many fertilizer materials; however, these values were intially developed for soil applications, and current reference tables have combined the original values with a later laboratory method, which gives a higher numerical number. A new method, which involves vapor pressure osmometry, is proposed and correlates well with potential injury to plant foliage. Osmolality values are expressed in mmol kg-1 and for N fertilizers are standardized by preparing a 3% N solution, which can be determined quickly. Turf trials were conducted on three turf grasses with traditional and urea formaldehyde reaction products applied at N rates ranging from 4.9 to 19.8 g N m-2. Burn ratings with a corresponding osmolality value are closely related with correlations of up to R2 0.93. Use of vapor pressure osmometry will enable the end user to apply foliar nutrients, especially nitrogen materials, with a better understanding of potential injury to plant foliage."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Murray, T. P., C. H. III Darrah, and J. G. Jr. Clapp. 2007. Vapor pressure osmometry for prediction of turf burn from foliar fertilization. Commun. Soil. Sci. Plant Anal. 38(3/4):p. 337-346.
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DOI: 10.1080/00103620601172324
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    Last checked: 03/23/2007
    Access conditions: Item is within a limited-access website
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MSU catalog number: S 590 .C54
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