00329nam a2200109Ia 4500008004100000082001800041245004500059260000900104300001000113600002400123650007200147130903s9999    xx            000 0 und d  aTR631.82   K7  aMagnesium in booenund Magnesium diingung  c1967  a105p.  aBruchholz, Herbert.  aSoil-Magnesium content,Magnesium-metabolism,Fertilizers and manures