Effect of prolonged use of liquid swine manure and nitrogen fertlizaton on components of soil acidity

Authors

  • Eloi Erhard Scherer Epagri / Centro de Pesquisa para Agricultura Familiar (Cepaf)
    • Evandro Spagnollo Epagri / Centro de Pesquisa para Agricultura Familiar (Cepaf)
      • Jorge Luis Mattias Universidade Federal da Fronteira Sul (UFFS)
        • Ivan Tadeu Baldissera Epagri / Centro de Pesquisa para Agricultura Familiar (Cepaf)

          DOI:

          https://doi.org/10.52945/rac.v25i2.654

          Keywords:

          adubação orgânica, nitrato de amônio, pH do solo, alumínio trocável, saturação por bases, plantio direto

          Abstract

          The objective of this study was to examine the long-term effects of liquid swine manure and mineral nitrogen applications on soil acidity atributes of a clay loam no-tll Oxisol. Four treatment levels of nitrogen (0, 60, 120 and 180kg/ha) were administered yearly from 1996 to 1999, and twice a year from 2000 to 2009 as ammonium nitrate (N-AN) and liquid swine manure (N-LSM). In 2010, soil samples were taken from up to 2.5, 2.5 to 5, 5 to 10, 10 to 20, 20 to 30, and 40 to 50cm depths and analyzed for pH, exchangeable catons (Al3+, Ca2+, Mg2+ and K+), and Al and base saturaton percentage were calculated. Long-term N-AN fertlizaton reduced soil pH and increased exchangeable Al in the 30cm top soil. This acidity
          increase was accompanied by decrease exchangeable Ca2+ in the top 20cm and Mg2+ in the 30cm top soil. Signifcant increases in exchangeable acidity and decreases in exchangeable bases with N-AN fertlizaton resulted in a litle base saturaton in the 30cm top soil. The N-LSM applicaton did not cause any signifcant change in soil pH, exchangeable Al3+, Ca2+, Mg2+ or base
          saturaton.

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          Published

          2012-04-28

          Issue

          Vol. 25 No. 2 (2012)

          Section

          Scientific article

          License

          Creative Commons Attribution 4.0 (CC BY 4.0 - internacional), permite:

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          How to Cite

          Effect of prolonged use of liquid swine manure and nitrogen fertlizaton on components of soil acidity. (2012). Agropecuária Catarinense Journal, 25(2), 68-73. https://doi.org/10.52945/rac.v25i2.654