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| Kristensen, Hanne L.; Debosz, Kasia; McCarty, Greg W.. |
| Tillage is known to decrease soil organic nitrogen (N) and carbon (C) pools with negative consequences for soil quality. This decrease is thought partly to be caused by exposure of protected organic matter to microbial degradation by the disturbance of soil structure. Little is known, however, about the short-term effects of tillage on mineralization of N and C, and microbial activity. We studied the short-term effects of two types of tillage (conventional plough- and a non-inverting-tillage) on mineralization and microbial N and C pools in a sandy loam under organic plough-tillage management. The release of active and protected (inactive) N by tillage was further studied in the laboratory by use of 15N labelling of the active pool of soil N followed by... |
| Tipo: Journal paper |
Palavras-chave: Nutrient turnover; Soil quality; Soil biology. |
| Ano: 2003 |
URL: http://orgprints.org/1537/1/Shortterm.pdf |
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