Modelling legume based rotations
The biological fixation of nitrogen by legumes in crop rotations plays a valuable role in reducing our dependence on synthetically produced nitrogen fertiliser. They can also replace other food, feed, fibre and fuel crop products that are imported from other continents. Nevertheless, they are under-represented in European agriculture and the project that this paper is part of aims to address this issue. One of the aspects of the project is to provide an assessment of the effects of relevant farming system changes on greenhouse gasses. DNDC, a dynamic and deterministic model of the soil carbon, nitrogen cycles and plant growth process will be used to assess the contribution of the legumes within the context of crop rotations to greenhouse gas emissions. A low input rotational experiment was used to validate the model. The experimental site involved the study of a three year low input rotation with four different management treatments. The model was validated against the grain yield and the total yield.
Other Titles/Title of Conference
Agricultural Ecology Research: Its role in delivering sustainable farm systems, Dundee, UK
Association of Applied Biologists
Journal Title/Title of Proceedings
Aspects of Applied Biology: Agricultural Ecology Research: Its role in delivering sustainable farm systems