TY - BOOK AU - Sheaffer,Craig C. AU - Moncada,Kristine M. TI - Introduction to agronomy: food, crops, and environment SN - 9781111312336 U1 - 630 PY - 2012/// CY - Clfton Park, NY PB - Delmar Cengage Learning KW - Agronomy KW - Food crops N1 - Includes bibliographical references and index ER -