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Solid and liquid fraction of digestate as an alternative mineral nitrogen source : two-year field research in Croatia

Mihaela Šatvar (UGent) , Marko Petek, Boris Lazarević, Željko Jukić, Erik Meers (UGent) and Lepomir Čoga
(2024) AGRICULTURE-BASEL. 14(8).
Author
Organization
Project
  • SYSTEMIC (Systemic large scale eco-innovation to advance circular economy and mineral recovery from organic waste in Europe)
Abstract
This research aimed to assess the effect of applying digestate fractions and conventional mineral nitrogen (N) fertilizers on plant and soil properties, as well as potential nitrate leaching, in acidic soil over two consecutive years (2018 and 2019). The digestate fractions were obtained after the anaerobic co-digestion of maize silage and liquid cattle manure (LCM). Seven different treatments were applied to the maize crop in four replicates: unfertilized control (C), mineral fertilizer (MF), LCM, solid fraction of digestate (SFD), liquid fraction of digestate (LFD) and a mixture of SFD and LFD with MF (50% of total N from digestate fractions + 50% of total N from MF). The highest maize yields were achieved on average in 2018. Statistically, the highest dry grain yield was observed in the MF treatment (12.1 t ha−1) and in the mixtures of MF+SFD (11.0 t ha−1) and MF+LFD (11.8 t ha−1), while the lowest yield was achieved in both years in the C treatment (7.9 t ha−1). The N fertilizer replacement value was statistically highest on average in the MF treatment (100%) and in the mixtures of MF+LFD (80.5%) for both years. The experiment results could inform legal guidelines and standardize digestate application on agricultural land in Croatia and the European Union (EU).
Keywords
digestate fractions, nitrogen fertilization, maize grain yield, soil pH, soil nitrate, ANAEROBIC-DIGESTION, COW MANURE, SOIL, NITRATE, SLURRY, YIELD, CORN, PARAMETERS, QUALITY, GROWTH

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Citation

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MLA
Šatvar, Mihaela, et al. “Solid and Liquid Fraction of Digestate as an Alternative Mineral Nitrogen Source : Two-Year Field Research in Croatia.” AGRICULTURE-BASEL, vol. 14, no. 8, 2024, doi:10.3390/agriculture14081243.
APA
Šatvar, M., Petek, M., Lazarević, B., Jukić, Ž., Meers, E., & Čoga, L. (2024). Solid and liquid fraction of digestate as an alternative mineral nitrogen source : two-year field research in Croatia. AGRICULTURE-BASEL, 14(8). https://doi.org/10.3390/agriculture14081243
Chicago author-date
Šatvar, Mihaela, Marko Petek, Boris Lazarević, Željko Jukić, Erik Meers, and Lepomir Čoga. 2024. “Solid and Liquid Fraction of Digestate as an Alternative Mineral Nitrogen Source : Two-Year Field Research in Croatia.” AGRICULTURE-BASEL 14 (8). https://doi.org/10.3390/agriculture14081243.
Chicago author-date (all authors)
Šatvar, Mihaela, Marko Petek, Boris Lazarević, Željko Jukić, Erik Meers, and Lepomir Čoga. 2024. “Solid and Liquid Fraction of Digestate as an Alternative Mineral Nitrogen Source : Two-Year Field Research in Croatia.” AGRICULTURE-BASEL 14 (8). doi:10.3390/agriculture14081243.
Vancouver
1.
Šatvar M, Petek M, Lazarević B, Jukić Ž, Meers E, Čoga L. Solid and liquid fraction of digestate as an alternative mineral nitrogen source : two-year field research in Croatia. AGRICULTURE-BASEL. 2024;14(8).
IEEE
[1]
M. Šatvar, M. Petek, B. Lazarević, Ž. Jukić, E. Meers, and L. Čoga, “Solid and liquid fraction of digestate as an alternative mineral nitrogen source : two-year field research in Croatia,” AGRICULTURE-BASEL, vol. 14, no. 8, 2024.
@article{01J61W5Z006NSG0CTK9NK2TTNR,
  abstract     = {{This research aimed to assess the effect of applying digestate fractions and conventional mineral nitrogen (N) fertilizers on plant and soil properties, as well as potential nitrate leaching, in acidic soil over two consecutive years (2018 and 2019). The digestate fractions were obtained after the anaerobic co-digestion of maize silage and liquid cattle manure (LCM). Seven different treatments were applied to the maize crop in four replicates: unfertilized control (C), mineral fertilizer (MF), LCM, solid fraction of digestate (SFD), liquid fraction of digestate (LFD) and a mixture of SFD and LFD with MF (50% of total N from digestate fractions + 50% of total N from MF). The highest maize yields were achieved on average in 2018. Statistically, the highest dry grain yield was observed in the MF treatment (12.1 t ha−1) and in the mixtures of MF+SFD (11.0 t ha−1) and MF+LFD (11.8 t ha−1), while the lowest yield was achieved in both years in the C treatment (7.9 t ha−1). The N fertilizer replacement value was statistically highest on average in the MF treatment (100%) and in the mixtures of MF+LFD (80.5%) for both years. The experiment results could inform legal guidelines and standardize digestate application on agricultural land in Croatia and the European Union (EU).}},
  articleno    = {{1243}},
  author       = {{Šatvar, Mihaela and Petek, Marko and Lazarević, Boris and Jukić, Željko and Meers, Erik and Čoga, Lepomir}},
  issn         = {{2077-0472}},
  journal      = {{AGRICULTURE-BASEL}},
  keywords     = {{digestate fractions,nitrogen fertilization,maize grain yield,soil pH,soil nitrate,ANAEROBIC-DIGESTION,COW MANURE,SOIL,NITRATE,SLURRY,YIELD,CORN,PARAMETERS,QUALITY,GROWTH}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{19}},
  title        = {{Solid and liquid fraction of digestate as an alternative mineral nitrogen source : two-year field research in Croatia}},
  url          = {{http://doi.org/10.3390/agriculture14081243}},
  volume       = {{14}},
  year         = {{2024}},
}
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