Nitrogen leaching from conventional versus organic farming systems — a systems modelling approach

  title={Nitrogen leaching from conventional versus organic farming systems — a systems modelling approach},
  author={Birgitte Hansen and Erik Kristensen and Ruth Grant and H. H{\o}gh-jensen and S. E. Simmelsgaard and J{\o}rgen Eivind Olesen},
  journal={European Journal of Agronomy},
Abstract The level of nitrogen leaching from organic compared to conventional farming was evaluated by using a systems modelling approach. [...] Key Method A nitrogen balance model was used to estimate the long-term potential for nitrate leaching. These methods were applied to models of both current conventional farming systems in Denmark in 1996 and of well-managed organic farming systems. On average, the total estimated nitrogen input to the organic systems was lower (104–216 kg N ha −1 year −1 ) than to the…Expand

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