00325nam a2200121Ia 4500003000400000008004100004020001500045040000800060100001900068245004900087260005800136300000900194LDD181029s9999    xx            000 0 und d  a3906535037  cLDD  aMENGEL, Konrad 0aPrinciples of plant nutritioncKonrad MENGEL  aWorblaufen-BernbInternational Potash Institutec1987  a687p