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Liu, Qiong ; Atere, Cornelius Talade ; Zhu, Zhenke ; Shahbaz, Muhammad ; Wei, Xiaomeng ; Pausch, Johanna ; Wu, Jinshui ; Ge, Tida:
Vertical and horizontal shifts in the microbial community structure of paddy soil under long-term fertilization regimes.
In: Applied Soil Ecology.
Bd. 169
(2022)
.
- 104248.
ISSN 0929-1393
DOI: https://doi.org/10.1016/j.apsoil.2021.104248
Abstract
Knowledge remains limited on how the structure of microbial community in paddy soils changes in relation to different types of fertilizers with same amount of nutrients. Thus, here, soil samples were collected at 0–10, 10–20, 20–30, and 30–40 cm depths from a paddy field subjected to four long-term fertilization treatments (no fertilization, mineral fertilization, mineral fertilization combined with rice straw, and chicken manure) and analyzed for microbial biomass and community composition. In unfertilized soils, microbial biomass decreased from 0 to 40 cm (with actinomycetes < gram-positive (G+) bacteria < gram-negative (G−) bacteria < fungi). This ordering was retained after fertilization, but the decline with depth was less pronounced. Both mineral and mineral plus organic fertilization increased the biomass of G+ bacteria compared to G− bacteria (22.7–56.2% increase) and actinomycetes (14.8–52.5% increase). Thus, over the long term, G+ bacteria benefited the most from mineral fertilizer than the other microbial groups. The partial replacement of mineral fertilizer with manure primarily enhanced the abundance of G+ bacteria at 0–30 cm soil depth, whereas replacement with straw enhanced the abundance of fungi at 10–20 cm soil depth. Our findings demonstrate that the structure of the microbial community is strongly impacted by long-term fertilization, independent of fertilizer type.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Keywords: | Mineral fertilizer; Microbial community composition; Straw addition; Soil depth; Organic manure; Paddy soil |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Agrarökologie > Professur Agrarökologie - Juniorprof. Dr. Johanna Pausch |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik > 500 Naturwissenschaften 500 Naturwissenschaften und Mathematik > 550 Geowissenschaften, Geologie 500 Naturwissenschaften und Mathematik > 570 Biowissenschaften; Biologie |
| Eingestellt am: | 17 Okt 2023 05:12 |
| Letzte Änderung: | 17 Okt 2023 05:12 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/87245 |