00477nam a2200133Ia 4500008004100000082003600041100000900077245008400086260002300170300000700193942000700200952011900207999001700326140113s9999    xx            000 0 und d  a633.15:638.8:621.039(047.3)   L  aIAEA  aFertilizer management practices for maize :Results of Experiments with isotopes  a1970bIAEAcVienna  a78  cBK  00104070aVTLbVTLd2014-01-13l0o633.15:638.8:621.039(047.3)   LpVBK1108r2014-01-13 00:00:00w2014-01-13yBK  c57786d57786