Ammonia Flux into the Atmosphere from a Grazed Pasture

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Science  16 Aug 1974:
Vol. 185, Issue 4151, pp. 609-610
DOI: 10.1126/science.185.4151.609


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.