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DOI: | 10.1080/00103629309368907 |
Web URL(s): | https://www.ars.usda.gov/ARSUserFiles/30100000/1990-1999documents/282%201993%20Pierzynski%20Comm%20Soil%20Sci%20Plant%20Anal.pdf Last checked: 01/31/2017 Requires: PDF Reader http://www.tandfonline.com/doi/pdf/10.1080/00103629309368907#.UnqbFRDOR8E Last checked: Item not verified Requires: PDF Reader Access conditions: Item is within a limited-access website Notes: Guide page with abstract |
Publication Type:
| Report |
Author(s): | Pierzynski, G. M.;
Vigil, M. F.;
Kissel, D. E. |
Author Affiliation: | Pierzynski: Department of Agronomy, Kansas State University, Manhattan, KS; Vigil: USDA-ARS Soil Scientist, Akron, CO; Kissel: Department of Agronomy, University of Georgia, Athens, GA |
Title: | Urea nitricphosphate for cool-season grass production |
Source: | Communications in Soil Science and Plant Analysis. Vol. 24, No. 13-14, 1993, p. 1665-1681. |
Publishing Information: | New York, New York: Marcel Dekker |
# of Pages: | 17 |
Related Web URL: | http://www.tandfonline.com/doi/abs/10.1080/00103629309368907 Last checked: 11/06/2013 Notes: Abstract only |
Keywords: | TIC Keywords: Ammonia volatilization; Cool season turfgrasses; Fertilizer efficacy; Fertilizer evaluation; Urea fertilizers
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Abstract/Contents: | "Significant losses of nitrogen (N) can occur via volatilization of ammonia (NH3) when non-incorporated broadcast applications of urea or urea-containing fertilizers are made. This study was conducted to determine the efficacy of urea nitricphosphate (UNP) as an N and phosphorus (P) source for cool-season grasses and to evaluate NH3 volatilization potential of UNP as compared to urea under laboratory conditions. A three-year field study compared UNP to ammonium nitrate (AN) and urea at 56 and 112 kg N/ha for tall fescue (Festuca arundinacea Schreb.) and smooth brome (Bromus inermis Leyss.). Brome yields were significantly higher from UNP as compared to urea for one of the three years. No such differences occurred with fescue. Nitrogen uptake was significantly higher from UNP as compared to urea for one year each for brome and fescue. Phosphorus uptake by brome was significantly higher from UNP as compared to urea for two years. Laboratory incubation studies showed significantly lower NH3 volatilization from UNP than from urea after seven days, but no significant differences after 14 days. The delay in NH3 volatilization was due to the diffusion and subsequent hydrolysis of urea immediately below the soil zone initially influenced by the UNP. The reduction in NH3 volatilization at the early time could partially be attributed to an inhibition of urea hydrolysis and significantly lower soil pH values for UNP as compared to urea in the upper 30 mm of soil cores. The general conclusion from the field and laboratory work was that UNP is a suitable N source for cool-season grasses, with the primary potential benefit being delayed NH3 volatilization as compared to urea." |
Language: | English |
References: | Unknown |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Pierzynski, G. M., M. F. Vigil, and D. E. Kissel. 1993. Urea nitricphosphate for cool-season grass production. Commun. Soil. Sci. Plant Anal. 24(13-14):p. 1665-1681. |
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| DOI: 10.1080/00103629309368907 |
| Web URL(s): https://www.ars.usda.gov/ARSUserFiles/30100000/1990-1999documents/282%201993%20Pierzynski%20Comm%20Soil%20Sci%20Plant%20Anal.pdf Last checked: 01/31/2017 Requires: PDF Reader http://www.tandfonline.com/doi/pdf/10.1080/00103629309368907#.UnqbFRDOR8E Last checked: Item not verified Requires: PDF Reader Access conditions: Item is within a limited-access website Notes: Guide page with abstract |
| MSU catalog number: b2211306a |
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