EGU22-12920, updated on 28 Mar 2022
https://doi.org/10.5194/egusphere-egu22-12920
EGU General Assembly 2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Evaluation of potential nitrogen mineralization and relations to static and dynamic soil properties from arable agricultural soils following ten years in Flanders, Belgium

Oka Ardiana Banaty1,2
Oka Ardiana Banaty
  • 1Department of Environment, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium (okaardia.okaardianabanaty@ugent.be)
  • 2Indonesian Agency of Agricultural Research and Development (IAARD), Ministry of Agriculture, Indonesia

Soil N mineralization is a crucial parameter for efficient N management in intensive agriculture and is determined by a combination of static or inherent (mineralogy, texture) and dynamic soil properties. We measured N mineralization potential from native soil organic matter (SOM) of 21 agricultural fields under intensive management in 2018-2019 and compared these to N mineralization potential measured on the exact locations in these fields in 2009. We hypothesized that changes in N mineralization over this decadal period could be explained by differences in land management and would be reflected in soil biochemical and physical properties. The results showed that potential N mineralization assessed in 2018-2019 was higher than measured in 2009. However, the changes of N mineralization potential was not significantly correlated with pH-KCl, N total, TOC, C: N ratio and microbial activities (Cmic). Likewise, it was not significantly associated with texture (% sand, % silt and % clay). Therefore, in this study, the potential of N mineralization could be more affected by changes in land management practices (i.e. fertilization, crop rotations and soil tillage) than soil properties following ten years.

How to cite: Banaty, O. A.: Evaluation of potential nitrogen mineralization and relations to static and dynamic soil properties from arable agricultural soils following ten years in Flanders, Belgium, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-12920, https://doi.org/10.5194/egusphere-egu22-12920, 2022.