00405nam a22001457i 4500001001000000005001700010008004100027082002100068100001500089245005500104260004800159300001700207650001700224020001800241SXC01859820260819093640.0260101s1986    ii            000 0 eng d  a577.57 SUB-S222  aSubra, N S10aSoil microorganisms and plant growth /cSubra, N S  abOxford & IBH Publishing, New Delhi,c1986  ap. ;c22 cm. 0aSoil ecology  a9781886106185