000 | 00488 a2200181 4500 | ||
---|---|---|---|
245 | 1 | _aInteraction between humic substances and soil microorganisms. | |
300 | _a136p. | ||
650 | _aSoil structural units | ||
650 | _aHumic acid | ||
650 | _aSoil types | ||
650 | _aOrganic fertilizers | ||
650 | _aBacteria | ||
502 |
_cIARI, Division of Microbiology, New Delhi _bPh.D. _d1970 |
||
502 | _gGaur, A.C. | ||
100 | 1 |
_aBhardwaj, K.K.R. _d |
|
942 |
_2udc _cT |
||
901 | _aT2054 | ||
999 |
_c140177 _d140177 |