Publication Details |
Category | Text Publication |
Reference Category | Journals |
DOI | 10.1080/10256019808036356 |
Title (Primary) | N balance experiments on fen grassland with N-15 labelled fertilizer |
Author | Augustin, J.; Merbach, W.; Käding, H.; Schmidt, W.; Schalitz, G.; Russow, R.; Ende, H.P. |
Source Titel | Isotopes in Environmental and Health Studies |
Year | 1998 |
Department | BOPHY; BOFO |
Volume | 34 |
Issue | 1-2 |
Page From | 31 |
Page To | 37 |
Language | englisch |
Keywords | fen, fertilizer N losses, fertilizer N transformation, grassland, minerotrophic mires, N balance experiments, nitrogen 15 |
Abstract |
In microplot experiments on two minerotrophic mire sites of northeastern Germany (a: highly degraded, shallow—Paulinenaue, Brandenburg; b: slightly degraded, deep-layer—Heinrichswalde, Mecklenburg-Vorpommern) the fate of 15N-labelled fertilizer-N (120kg N ha−1 as K15NO3, 46.94 at-% 15Nexc) was investigated over one growing season. Only 53 to 69% of the applied fertilizer-N (63 to 82kg N ha−1) could be recovered. The plants had taken up about 70 to 79% of this portion, that is about 16% of their total N demand. At the end of the first year of experiment, about 21 to 30% of the fertilizer-N recovered were in the soil, more than 90% of which in 0–20 cm depth. It is assumed that the low rates of retrieval are due to gaseous losses of N-compounds (as N2; N2O). |
Persistent UFZ Identifier | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=8538 |
Augustin, J., Merbach, W., Käding, H., Schmidt, W., Schalitz, G., Russow, R., Ende, H.P. (1998): N balance experiments on fen grassland with N-15 labelled fertilizer Isot. Environ. Health Stud. 34 (1-2), 31 - 37 10.1080/10256019808036356 |