00264nam a2200097Ia 4500008004100000082002200041100003000063245003500093260003000128300000800158140113s9999    xx            000 0 und d  a631(02)   P12.117  a"Sparks, Donald. L., ed."  aAdvances in Agronomy -vol. 117  a2012bElseviercAmsterdam  a376