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Web URL(s): | http://www.tandfonline.com/doi/pdf/10.1081/CSS-100103028 Last checked: 10/13/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Report |
Author(s): | Bergstrom, D. W.;
Tenuta, M.;
Beauchamp, E. G. |
Author Affiliation: | Bergstrom: Agriculture and Agri-Food Canada, University of Manitoba, Winnipeg, Manitoba, Canada; Tenuta: Southern Crop Protection and Food Research Centre, Agriculture and Agri-Food Canada, London, Ontario, Canada; Beauchamp: Department of Land Resource Science, University of Guelph, Guelph, Ontario, Canada |
Title: | Nitrous oxide production and flux from soil under sod following application of different nitrogen fertilizers |
Source: | Communications in Soil Science and Plant Analysis. Vol. 32, No. 3/4, February 2001, p. 553-570. |
Publishing Information: | New York, NY: Marcel Dekker |
# of Pages: | 18 |
Keywords: | TIC Keywords: Nitrous oxide; Sod; Nitrogen fertilizers; Poa pratensis; Denitrification; Soil layering; Urea; Soil profiles
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Abstract/Contents: | "Concern of contribution of nitrous oxide (N2O) to global warming and stratospheric ozone depletion has prompted measurement of nitrous oxide (N2O) emissions from agricultural soils and study of controlling factors. The objectives of this study were (1) to measure the magnitude of N2O emissions from application of (NH4)2SO4, Ca(NO3)2 or urea (each at 100 kg N/ha) to a Kentucky bluegrass (Poa pratenis L.) stand, and (2) to compare flux of N2O production and denitrification in soil cores collected at a depth of 2.5-7.5 cm. Water, NH4+ and NO3+ contents of soil cores were also measured. Application of all three fertilizers increased N2O production by soil cores, and N2O flux from covers. The two measurements differed in temporal pattern and magnitude. Flux of N2O from the soil surface is a more complex and variable process than N2O production in a specific soil layer. The possibility of increased N2O production with urea requires further investigation under more controlled conditions. Nitrification of NH4+ appeared to be the principal source of N2O. |
Language: | English |
References: | 45 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Bergstrom, D. W., M. Tenuta, and E. G. Beauchamp. 2001. Nitrous oxide production and flux from soil under sod following application of different nitrogen fertilizers. Commun. Soil. Sci. Plant Anal. 32(3/4):p. 553-570. |
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| Web URL(s): http://www.tandfonline.com/doi/pdf/10.1081/CSS-100103028 Last checked: 10/13/2015 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: S 590 .C54 |
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