Steering microbiomes by organic amendments towards climate-smart agricultural soils

verfasst von

Kristof Brenzinger, Ohana Y.A. Costa, Adrian Ho, Guusje Koorneef, Bjorn Robroek, Douwe Molenaar, Gerard Korthals, Paul L.E. Bodelier

Abstract

We steered the soil microbiome via applications of organic residues (mix of cover crop residues, sewage sludge + compost, and digestate + compost) to enhance multiple ecosystem services in line with climate-smart agriculture. Our result highlights the potential to reduce greenhouse gases (GHG) emissions from agricultural soils by the application of specific organic amendments (especially digestate + compost). Unexpectedly, also the addition of mineral fertilizer in our mesocosms led to similar combined GHG emissions than one of the specific organic amendments. However, the application of organic amendments has the potential to increase soil C, which is not the case when using mineral fertilizer. While GHG emissions from cover crop residues were significantly higher compared to mineral fertilizer and the other organic amendments, crop growth was promoted. Furthermore, all organic amendments induced a shift in the diversity and abundances of key microbial groups. We show that organic amendments have the potential to not only lower GHG emissions by modifying the microbial community abundance and composition, but also favour crop growth-promoting microorganisms. This modulation of the microbial community by organic amendments bears the potential to turn soils into more climate-smart soils in comparison to the more conventional use of mineral fertilizers.

Organisationseinheit(en)

Institut für Mikrobiologie

Externe Organisation(en)

Netherlands Institute of Ecology
Julius-Maximilians-Universität Würzburg
Wageningen University and Research
Radboud Universität Nijmegen (RU)
Vrije Universiteit Amsterdam

Typ

Artikel

Journal

Biology and fertility of soils

Band

57

Seiten

1053-1074

Anzahl der Seiten

22

ISSN

0178-2762

Publikationsdatum

11.2021

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Mikrobiologie, Agronomie und Nutzpflanzenwissenschaften, Bodenkunde

Ziele für nachhaltige Entwicklung

SDG 2 – Kein Hunger, SDG 13 – Klimaschutzmaßnahmen

Elektronische Version(en)

https://doi.org/10.1007/s00374-021-01599-5 (Zugang: Offen)