00326nam a2200109Ia 4500008004100000082003400041100003300075245004600108260004200154300001000196650001000206140113s9999    xx            000 0 und d  a631.427:631.41:631.811:63  H8  a" Kitchen, Herminie Broedel"  aDiagnostic techniques for soils and crops  b"The American potash institute, 1948"  a308p.  aSoils