000 00513 a2200193 4500
245 1 _aPhysical chemistry of soil potassium and its availability
300 _a65p.
650 _aPotassium
650 _aSoil
650 _aClay
650 _aSoil profile
650 _aPotash fertilizers
650 _aVariation
502 _cIARI, Division of Soil Science and Agricultural Chemistry, New Delhi
_bM.Sc.
_d1961
502 _gRamamoorthy, B.
100 1 _aAhuja, S.K.
942 _2udc
_cT
901 _aT1049
999 _c140521
_d140521