00370nam a2200133Ia 4500008004100000082002800041100003300069245003200102260002600134300000800160600001600168600002000184650003200204130903s9999    xx            000 0 und d  a631.452(540)(084.3)  K9  a B.Ramamoorthi and J.C.Bajaj  aSoil fertility map of India  aNew DelhibIARIc1969  a7p.  aBajaj, J.C.  aRamamoorthi, B.  aSoil science,soil fertility