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The influence of organic and mineral nitrogen fertilizers on microbial biomass nitrogen and extractable organic nitrogen in long-term experiments with maize

Author

Listed:
  • J. Černý

    (Czech University of Agriculture in Prague, Czech Republic)

  • J. Balík

    (Czech University of Agriculture in Prague, Czech Republic)

  • D. Pavlíková

    (Czech University of Agriculture in Prague, Czech Republic)

  • M. Zitková

    (Czech University of Agriculture in Prague, Czech Republic)

  • K. Sýkora

    (Czech University of Agriculture in Prague, Czech Republic)

Abstract

Microbial biomass nitrogen and extractable organic nitrogen in extractions by 0.05M K2SO4 and 0.01M CaCl2 were studied in a long-term experiment with successive growing of silage maize. The highest content of microbial biomass nitrogen was measured for manure treatment, by 38-133% higher than for the control. In treatments with applications of mineral nitrogen fertilizers microbial biomass N was lower on average by 22-30% against the control. Extractable organic nitrogen was also lower in treatments with mineral N fertilizers compared to the control: by 23% in ammonium sulphate treatment and by 29% in DAM. The highest content of extractable organic nitrogen was determined for manure treatment. There was a positive correlation (r = 0.44-0.9) between microbial biomass nitrogen and extractable organic nitrogen in the extractions by 0.01M CaCl2 and 0.05M K2SO4.

Suggested Citation

  • J. Černý & J. Balík & D. Pavlíková & M. Zitková & K. Sýkora, 2003. "The influence of organic and mineral nitrogen fertilizers on microbial biomass nitrogen and extractable organic nitrogen in long-term experiments with maize," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 49(12), pages 560-564.
    • Handle: RePEc:caa:jnlpse:v:49:y:2003:i:12:id:4194-pse
    DOI: 10.17221/4194-PSE
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    Citations

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    Cited by:

    1. L. Růžek & K. Voříšek & S. Strnadová & M. Nováková & W. Barabasz, 2004. "Microbial characteristics, carbon and nitrogen content in cambisols and luvisols," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 50(5), pages 196-204.
    2. L. Růžek & M. Nováková & K. Voříšek & I. Skořepová & L. Vortelová & Z. Kalfařová & J. Černý & T. Částka & W. Barabasz, 2005. "Microbial biomass-C determined using CaCl2 and K2SO4 as extraction reagents," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 51(10), pages 439-446.
    3. S.S. Gonet & B. Debska, 2006. "Dissolved organic carbon and dissolved nitrogen in soil under different fertilization treatments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 52(2), pages 55-63.
    4. J. Černý & J. Balík & M. Kulhánek & K. Čásová & V. Nedvěd, 2010. "Mineral and organic fertilization efficiency in long-term stationary experiments," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 56(1), pages 28-36.
    5. Richard Onwonga & Joyce Lelei & Benson B. Mochoge, 2010. "Mineral Nitrogen and Microbial Biomass Dynamics under Different Acid Soil Management Practices for Maize Production," Journal of Agricultural Science, Canadian Center of Science and Education, vol. 2(1), pages 1-16, February.

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