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