00285nam a2200109Ia 4500008004100000082002000041245003100061260002900092650001500121650001900136650002000155220204s9999    xx            000 0 und d  a631/635bADV.24 0aAdvances in agronomy. V 24  aNew YorkbAcademicc1972  aHerbicides  aPlant breeding  aZinc deficiency