TY - BOOK AU - Wolf,Benjamin TI - Diagnostic techniques for improving crop production SN - 156022858X (acidfree) AV - SB106.I47 W65 1996 U1 - 630/.2/087 20 PY - 1996/// CY - New York PB - Food Products Press KW - Crop improvement KW - Crop yields N1 - Includes bibliographical references and index ER -