Quality in stored and processed vegetables and fruit : proceedings of a symposium held at Long Ashton Research Station, University of Bristol 8-12 April, 1979

The first chapter explains clearly the concept of biological efficiency in agriculture and the theoretical framework for its assessment and interpretation. The principles set out here are expanded and put to practical application in the ensuing chapters where examples of crop and animal production are critically examined. Data on agricultural systems world-wide, culled from a wide scattering of individual sources, are used as the basis for many new calculations.