The Relationship Between Plant Density and Crop Yield When Depressions in Yield Per Plant are Observed at Low Densities

SummaryAn empirical yield-density equation is described which accounts for depressions in yield per plant at low density. The main advantages of this equation are that it can be fitted in a linear form, is capable of describing both the ‘asymptotic’ and ‘parabolic’ yield-density relationships, and has parameters that can be biologically interpreted.