Biology and Fertility of Soils

, 45:213

The effect of reduced tillage on nitrous oxide emissions of silt loam soils

Authors

    • Department of Soil Management, Faculty of Bioscience EngineeringGhent University
    • Social Sciences, ILVO
  • Annemie Van den Bossche
    • Department of Soil Management, Faculty of Bioscience EngineeringGhent University
  • Jeroen Vandenbruwane
    • Department of Soil Management, Faculty of Bioscience EngineeringGhent University
  • Stefaan De Neve
    • Department of Soil Management, Faculty of Bioscience EngineeringGhent University
  • Donald Gabriels
    • Department of Soil Management, Faculty of Bioscience EngineeringGhent University
  • Georges Hofman
    • Department of Soil Management, Faculty of Bioscience EngineeringGhent University
Short Communication

DOI: 10.1007/s00374-008-0330-2

Cite this article as:
D’Haene, K., Van den Bossche, A., Vandenbruwane, J. et al. Biol Fertil Soils (2008) 45: 213. doi:10.1007/s00374-008-0330-2

Abstract

The effect of reduced tillage (RT) on nitrous oxide (N2O) emissions of soils from fields with root crops under a temperate climate was studied. Three silt loam fields under RT agriculture were compared with their respective conventional tillage (CT) field with comparable crop rotation and manure application. Undisturbed soil samples taken in September 2005 and February 2006 were incubated under laboratory conditions for 10 days. The N2O emission of soils taken in September 2005 varied from 50 to 1,095 µg N kg−1 dry soil. The N2O emissions of soils from the RT fields taken in September 2005 were statistically (P < 0.05) higher or comparable than the N2O emissions from their respective CT soil. The N2O emission of soils taken in February 2006 varied from 0 to 233 µg N kg−1 dry soil. The N2O emissions of soils from the RT fields taken in February 2006 tended to be higher than the N2O emissions from their respective CT soil. A positive and significant Pearson correlation of the N2O–N emissions with nitrate nitrogen (NO3–N) content in the soil was found (P < 0.01). Leaving the straw on the field, a typical feature of RT, decreased NO3–N content of the soil and reduced N2O emissions from RT soils.

Keywords

Reduced tillageN2O emissionsUndisturbed soil

Copyright information

© Springer-Verlag 2008