00509nam a2200181Ia 4500003000400000008004100004020001500045082001700060100001500077245007600092250001200168260005800180300001000238650001800248650002300266650002000289700001800309OSt170901s1987    xx            000 0 und d  a8186535128  a581.13bM54P  aMengel, K. 0aPrinciples of Plant Nutrition / cby Konrad Mengel and Ernest A. Kirkby  a4th ed.  a.- New Delhib: Panima Publishing Corporationc, 1987  a687p.  aPure Sciences  aBotanical Sciences  aPlant Nutrition  aKirkby, E. A.