000 00385 a2200133 4500
080 _a631.452(063)
_bI 61 P
245 1 _aSoil fertility evaluation
_bProceedings:
_cedited by J.S.Kanwar ...[et,al]
260 _aNew Delhi
_c1972
650 _aSoil Fertility
100 _aKanwar,J.S. ...[et,al]
300 _a156 p.
040 _aIARI, New Delhi
901 _a120207
999 _c80837
_d80837