00931nam a2200217 a 450000100080000000500110000800800410001902000180006010000190007824500260009726000260012330000100014952004430015965000190060265000090062165000150063065000090064565300200065465300190067470000200069317592132009-08-25       1975    bl uuuu      00u1 u    #d  a0-582-44160-91 aGRAY, T. R. G.  aSoil micro-organisms.  aLondon: Longmanc1975  a240p.  aThe soil population; Soil as an environment for micro-organisms; Methods of studying the ecology of soil micro-organism; Soil microflora and the decompostion of dead organic matter; Breakdown of organic chemicals in soil; Effects of living plants on the soil microflora; Effect of micro-organisms on plant growth; Autotrophic micro-organisms in soil; Interactions between soil micro-organisms; Micro-organisms in the soil-plant ecosystem.  amicroorganisms  asoil  aMicroflora  aSolo  aMicrobial flora  aMicroorganismo1 aWILLIAMS, S. T.