Full TGIF Record # 232281
Item 1 of 1
DOI:10.1080/00103620903460831
Web URL(s):http://www.tandfonline.com/doi/full/10.1080/00103620903460831
    Last checked: 11/07/2013
    Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1080/00103620903460831
    Last checked: 11/07/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
Publication Type:
i
Report
Author(s):Proctor, Christopher; Koenig, Richard; Johnston, William
Author Affiliation:Department of Crop and Soil Sciences, Washington State University, Pullman, Washington
Title:Potential for ammonia volatilization from urea in dryland Kentucky bluegrass seed production systems
Source:Communications in Soil Science and Plant Analysis. Vol. 41, No. 3, 2010, p. 320-331.
# of Pages:12
Publishing Information:New York, New York: Marcel Dekker
Related Web URL:http://www.tandfonline.com/doi/abs/10.1080/00103620903460831
    Last checked: 11/07/2013
    Notes: Abstract only
Keywords:TIC Keywords: Ammonia volatilization; Ammonium nitrate; Fertilizer evaluation; Poa pratensis; Seed yield; Urea
Abstract/Contents:"Urea replaced ammonium nitrate (AN) as a nitrogen (N) source for dryland Kentucky bluegrass seed production in the inland Pacific Northwest in the United States. This study assessed ammonia (NH3) volatilization, N recovery, and seed yield from urea as compared to AN. Laboratory incubations indicate NH3 volatilization is greater from soil covered by fresh residue than soil alone or covered by burned residue. Although pH of the fresh and burned residues exceeded 8.0, urease activity in burned residue was <15% of that in unburned residue or soil. Ammonia volatilization from dry urea and fluid urea AN was greater than AN at burned and unburned sites after a 5 October application. Ammonia volatilization was higher and N recovery and seed yield were lower for urea after a 15 November application at an unburned site. To reduce NH3 volatilization, apply urea to fields with low urease activity or moisture content and/or immediately before a significant rain event."
Language:English
References:25
Note:Equations
Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Proctor, C., R. Koenig, and W. Johnston. 2010. Potential for ammonia volatilization from urea in dryland Kentucky bluegrass seed production systems. Commun. Soil. Sci. Plant Anal. 41(3):p. 320-331.
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DOI: 10.1080/00103620903460831
Web URL(s):
http://www.tandfonline.com/doi/full/10.1080/00103620903460831
    Last checked: 11/07/2013
    Access conditions: Item is within a limited-access website
http://www.tandfonline.com/doi/pdf/10.1080/00103620903460831
    Last checked: 11/07/2013
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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