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    • Protozoa and the decline of Rhizobiurn populations added to soil 

      S.K.A, Danso; S.O, Keya; M, Alexander (Laboratory of Soil Microbiology, Department of Agronomy, Cornell University Ithaca, New YorkDepartment of Soil Science. University of Nairobi, 1975)
      A fall in Rhizobium abundance occurred in nonsterile soil inoculated with large numbers of the root-nodule bacteria but many of the rhizobia still survirved. No such decline was evident in sterile soil. Protozoa feeding ...