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Fluctuations of nitrogen levels in soil profile under conditions of a long-term fertilization experiment

Author

Listed:
  • W. Sądej

    (Department of Environmental Chemistry, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland)

  • K. Przekwas

    (Department of Environmental Chemistry, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland)

Abstract

The present study is focused on the correlation between varied long-term fertilization and changes in soil nitrogen concentrations. It was found that all fertilization systems significantly increased the levels of total, mineral and organic nitrogen in the soil profile. Organic fertilizers (manure and slurry) contributed to a more considerable increase in the concentrations of total nitrogen and nitrogen undergoing hydrolysis in 6M HCl, compared to mineral fertilizers. Ammonia nitrogen dominated over nitrate nitrogen among mineral nitrogen forms. Organic fertilization contributed to nitrate nitrogen accumulation, while mineral fertilization to ammonia nitrogen storage. The highest accumulations of nitrate nitrogen and ammonia nitrogen were observed after the application of slurry and manure, respectively. Hydrolyzable nitrogen content and its proportion in total nitrogen generally decreased with soil depth. An increase in the levels of organic nitrogen forms, i.e. nitrogen contained in amino sugars and amino acids as well as ammonia nitrogen from decomposition of amides, amino sugars and amino acids, was conditioned primarily on the application of organic fertilizers, particularly manure. Amino acid-N dominated among hydrolyzable nitrogen compounds (77%), while amino sugar-N accounted for 5.6% only.

Suggested Citation

  • W. Sądej & K. Przekwas, 2008. "Fluctuations of nitrogen levels in soil profile under conditions of a long-term fertilization experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 54(5), pages 197-203.
    • Handle: RePEc:caa:jnlpse:v:54:y:2008:i:5:id:394-pse
    DOI: 10.17221/394-PSE
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    Citations

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    Cited by:

    1. J.J. Zhang & H. Li & H.J. Gao & P. Zhu & Q. Gao & L.C. Wang, 2014. "Effects of long-term fertilization and cropping regimes on total nitrogen and organic nitrogen forms in a Mollisol of Northeast China," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(12), pages 544-549.
    2. Alessia Catalani & Elena Brunori & Gabriele Chilosi & Alessandra Bernardini & Silvia Vanino & Melania Migliore & Roberta Farina & Rita Biasi, 2024. "Soil Traits and Grapevine Rootstock Genotypes Modulate Arbuscular Mycorrhizal Rate and Species in a Mediterranean Environment," Agriculture, MDPI, vol. 14(8), pages 1-18, August.
    3. Wiera Sądej & Andrzej Cezary Żołnowski, 2019. "Comparison of the effect of various long-term fertilization systems on the content and fractional composition of humic compounds in Lessive soil," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 65(4), pages 172-180.
    4. V. Nedvěd & J. Balík & J. Černý & M. Kulhánek & M. Balíková, 2008. "The changes of soil nitrogen and carbon contents in a long-term field experiment under different systems of nitrogen fertilization," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 54(11), pages 463-470.

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