00461nam a2200193Ia 4500008004100000041001200041082001200053082001100065100001900076100001100095245003500106250001200141260001100153260003200164260000900196300001500205365002500220650002200245150909s9999    xx            000 0 und d  aEnglish  a 581 .1  bSTR/ES  aStafford G A    eAuthor  aEssentials of plant physiology  a2nd Ed.  aLondon  bHeinemann Educational Books  c1973  a224  Pages  aUKP.5.50              aMineral nutrition