00374nam a2200133Ia 4500008004100000100001700041245004300058260005200101300001000153650002400163650002400187700001400211700001500225220216s9999    xx            000 0 und d  aRao D.V.K.N. 0aRole of Fe in P fixation: A comparison  bIndian Journal of Natural Rubber Researchc1994  a65-67  aPhosphorus fixation  aRubber growing soil  aPothen J.  aPotty S.N.