Boundary line analysis

This section provides the workflow to conduct yield gap decomposition using boundary line analysis. Introductory slides can be downloaded here. You will learn (a) how to identify the boundary points, (b) how to fit a continuous function to the boundary points, (c) how to estimate the yield gap for single production factors, and (d) how to identify the most limiting factor, by analogy with von Liebig’s law of the minimum, and decompose the yield gap for individual farm fields. Two workflows are available for this, one following Fermont et al. (2009) and another which is working progress by the University of Nottingham.