Published March 8, 2023
| Version v1
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Klimatische Bedingungen beeinflussen die Nährstoffversorgung durch Transfermulch
Authors/Creators
- 1. Universität Kassel, Fachbereich Ökologische Agrarwissenschaften, Fachgebiet Ökologischer Pflanzenschutz
Description
The efficiency of organic fertilizers may be limited in drought years. Potatoes were grown organically under reduced tillage in dry (2020) and wet (2021) conditions. Plant nutrition was compared by using either hair meal pellets (HMP) or transferred mulch from green manures (Mulch). In the 2020 drought, less nitrogen was mineralized in Mulch during the summer and resulted in increased nitrogen leaching risk before winter. Yields did not differ significantly. It is recommended to adjust crop rotation dynamically to drought events to avoid leaching losses.
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References
- Grzyb, A., Wolna-Maruwka, A., Niewiadomska, A., 2020. Environmental Factors Affecting the Mineralization of Crop Residues. Agronomy 10, 1951. doi.org/10.3390/agronomy10121951
- Naumann, G., Cammalleri, C., Mentaschi, L., Feyen, L., 2021. Increased economic drought impacts in Europe with anthropogenic warming. Nat. Clim. Change 11, 485–491. https://doi.org/10.1038/s41558-021-01044-3