00566nam a2200169 a 450000500170000000800410001704100080005808200130006610000470007924500870012625000120021326400620022530000320028765000220031965000350034165000200037620260717091540.0260717s1977    ii            000 0 eng d  aeng04a579.17571 aSubba Rao, N. S. (Nanjappa Shamanna), 192610aSoil microorganisms and plant growth /cSubba Rao, N. S. (Nanjappa Shamanna), 1926  a2nd ed. 1aNew Delhi :bOxford & IBH Publishing Co. Pvt.Ltd.,c1977.  axii, 335 p. : ill. ; 22 cm. 4aSoil microbiology 4aNitrogen-fixing microorganisms 4aGrowth (Plants)