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Science 16 August 1974:
Vol. 185. no. 4151, pp. 609 - 610
DOI: 10.1126/science.185.4151.609
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Articles

Ammonia Flux into the Atmosphere from a Grazed Pasture

O. T. Denmead 1, J. R. Simpson 2, and J. R. Freney 2

1 Division of Environmental Mechanics, Commonwealth Scientific and Industrial Research Organization, Post Office Box 821, Canberra, A.C.T. 2601, Australia
2 Division of Plant Industry, Commonwealth Scientific and Industrial Research Organization, Post Office Box 1600, Canberra, A.C.T. 2601, Australia

A micrometeorological technique has been used to measure the flux of ammonia and related gaseous nitrogen compounds into the atmosphere from a pasture grazed by sheep. During 3 weeks in late summer, the average daily flux density of nitrogen in these forms was 0.26 kilogram per hectare. This is a substantial part of the nitrogen turnover in grazed pastures.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Ammonia, Methane, and Nitrous Oxide Emission from Pig Slurry Applied to a Pasture in New Zealand.
R. R. Sherlock, S. G. Sommer, R. Z. Khan, C. W. Wood, E. A. Guertal, J. R. Freney, C. O. Dawson, and K. C. Cameron (2002)
J. Environ. Qual. 31, 1491-1501
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