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| Content Provider | Springer Nature Link |
|---|---|
| Author | Thompson, R. B. Meisinger, J. J. |
| Copyright Year | 2004 |
| Abstract | To provide locally-determined field data for extension and environmental management purposes, gaseous N losses were measured following cattle slurry application to an arable silty-loam soil in the mid-Atlantic region of the USA. The field had been cropped to no-till maize. NH$_{3}$ volatilization was measured with the micro-meteorological, integrated horizontal flux (IHF) method, and denitrification with a core incubation method using acetylene inhibition. An early-winter surface application (5 December 1996; 88 m$^{3}$ ha$^{−1}$ supplying 91 kg NH 4 + -N ha$^{−1}$) was either unincorporated or immediately incorporated. NH$_{3}$ volatilization was measured from the unincorporated application, and denitrification from both slurry treatments and appropriate control soils. Total NH$_{3}$ loss from the unincorporated slurry application was 19% of applied NH 4 + -N; temperatures were cool (4–6 °C), and 25 mm of rain fell within 24 h of application. For 3 months, enhanced denitrification occurred from the two slurry treatments, with generally higher rates from the incorporated slurry. Total net denitrification loss from the surface-applied and incorporated slurry treatments was, respectively, 11 and 17% of applied NH 4 + -N. Denitrification loss over the winter/early-spring period was appreciable but not substantial, even where NH$_{3}$ volatilization was restricted by immediate incorporation. From the spring application (30 April 1997, 39 m$^{3}$ ha$^{−1}$ supplying 51 kg NH 4 + -N ha$^{−1}$), total NH$_{3}$ loss was 71% of applied NH 4 + -N. These NH$_{3}$ volatilization loss data and the similarity of climate suggest that NH$_{3}$ loss factors from recent NW European work are likely to be generally applicable in the mid-Atlantic region. NH$_{3}$ volatilization from the spring application was also measured using the Z-instrument (Z$_{INST}$) approach, and with a system of small wind tunnels. A comparative assessment of the three methods is reported. |
| Starting Page | 231 |
| Ending Page | 246 |
| Page Count | 16 |
| File Format | |
| ISSN | 0032079X |
| Journal | Plant and Soil |
| Volume Number | 266 |
| Issue Number | 1-2 |
| e-ISSN | 15735036 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2004-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | ammonia volatilisation denitrification immediate incorporation manure Plant Sciences Ecology Plant Physiology Soil Science & Conservation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Soil Science Plant Science |
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