The use of computer modelling to evaluate the agronomic, economic and environmental impacts of N management in contrasting organic rotations.

Francis Rayns, Ulrich Schmutz, Chris Firth, K. Thorup-Kristensen, K. Zhang, Clive Rahn

Research output: Contribution to journalArticle

Abstract

A new computer model (EU-ROTATE_N) has been developed with the aim of improving nitrogen management on all farms across Europe which include fi eld vegetables in their rotations. It brings together aspects of many existing models and contains a number of features to make it applicable to organic producers (e.g. taking account of nitrogen fi xation by legume containing leys, nitrogen conservation by winter cover crops and nitrogen supply by manures and composts). A key feature is the model's ability to simulate economic output and this enables it to be of value to policy makers when considering the impact of new measures to reduce environmental pollution. This paper describes the model and some initial work that has been conducted to evaluate it under UK organic field vegetable systems with contrasting fertility building strategies.
Original languageEnglish
Pages (from-to)171-174
Number of pages4
JournalAspects of Applied Biology
Volume79
Publication statusPublished - 1 Jun 2006

Keywords

  • Organic farming
  • vegetable crops
  • Computer modelling
  • Fertility building
  • Rotational gross margin
  • Farm Economics

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