Before revision: Thomas R. Sinclair and Wayne R. Park (1993) "Inadequacy of the Liebig limiting-factor paradigm for explaining varying crop yields", Agronomy Journal 85(3): 472–6 Scientific applications Liebig's law has been extended to biological populations (and is commonly used in ecosystem modelling).
After revision: Scientific applications Liebig's law has been extended to biological populations (and is commonly used in ecosystem modelling).