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Effect of leguminous crop and fertilization on soil organic carbon in 30-years field experiment

Author

Listed:
  • D. Pikuła

    (Institute of Soil Science and Plant Cultivation, State Research Institute, Puławy, Poland)

  • A. Rutkowska

    (Institute of Soil Science and Plant Cultivation, State Research Institute, Puławy, Poland)

Abstract

The paper presents the results of over 30-years of field experiment on soil organic carbon accumulation under different crop rotation, manure and mineral N fertilization. The experiment was conducted with two crop rotations: A - recognized as soil exhausting from humus (potatoes, winter wheat, spring barley and corn) and B enriching soil with humus (potatoes, winter wheat, spring barley, and clover with grass mixture). In each crop rotation, five rates of manure - 0, 20, 40, 60 and 80 t/ha and four rates of mineral fertilizers N1, N2, N3 and N4 were applied. At the beginning of the experiment in 1979, the initial organic carbon content amounted to 0.74%, and after 33 years dropped to 0.61% in crop rotation without legumes. On the contrary, in crop rotation with clover - grass mixture, the tendency to stabilization of organic carbon quantity in soil was observed with the highest value 0.79% and the lowest one 0.72%. It was found that crop rotation enriching soil with humus produced organic matter ever more than those depleting the soil with humus, regardless of the manure fertilization. Mineral fertilization has modified soil organic carbon content.

Suggested Citation

  • D. Pikuła & A. Rutkowska, 2014. "Effect of leguminous crop and fertilization on soil organic carbon in 30-years field experiment," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 60(11), pages 507-511.
    • Handle: RePEc:caa:jnlpse:v:60:y:2014:i:11:id:436-2014-pse
    DOI: 10.17221/436/2014-PSE
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