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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 |
Publication Type:
| 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. |
Publishing Information: | New York, New York: Marcel Dekker |
# of Pages: | 12 |
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
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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 |
| MSU catalog number: b2211306a |
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