000 00303nam a2200121Ia 4500
008 220216s9999 xx 000 0 und d
100 _aIkram A
245 0 _aBeneficial soil microbes and crop productivity
260 _bPlanter
_c1990
300 _a640-648
650 _aHevea brasiliensis
942 _cJS
999 _c54703
_d54703