TY - BOOK AU - Sheaffer,Craig C. AU - Moncada,Kristine M. TI - Introduction to agronomy: food, crops, and environment SN - 9781418050375 AV - SB91 .S53 2009 CIRC U1 - 630 PY - 2009/// CY - Australia PB - Delmar Cengage Learning KW - Agronomy KW - Food crops N1 - Includes bibliographical references and index ER -