TY - BOOK AU - Hay, Robert K.M. AU - Porter, John R. TI - The Physiology of crop yield SN - 1-4051-0859-2 AV - SB112.5 .H39 2006 PY - 2006/// CY - UK PB - Blackwell Publishing KW - Crops KW - Physiology KW - Crop yields N1 - Includes bibliographical references and index ER -