Browsing Faculty of Agriculture & Veterinary Medicine (FAg / FVM) by Author "S. O, Keya"

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    • Factors Affecting Growth of Bdellovibrio on Rhizobium 

      S. O, Keya; M, Alexander (Laboratory of Soil Microbiology, Department of Agronomy, Cornell University Ithaca, New York, 1975)
      The extent ofdecline in the population density of Rhizobium sp. exposed to Bdellovibno was markedly reduced in the presence of montmorillonite, kaolinite or vermiculite but not by a soil clay fraction. Increasing levels ...

    • MIRCENS: Catalytic tools in agricultural training and development 

      S. O, Keya; J, Freire; E. J, DaSilva (Department of Soil Science, 1986)
      A global network of Microbiological Resources Centres (MIRCENs) , set up by Unesco, includes five centres concerned with biological nitrogen fixation. These centres are Kenya, Brazil, the United States and Senegal-train ...

    • Population dynamics of soil microorganisms in relation to proximity of termite mounds in Kenya 

      S. O, Keya; N. K, Mureria; M. A, Arshad (Department of Soil Science. University of Nairobi, 1982)
      Microbial populations estimated in termite-affected soils show that bacteria and actinomycetes are most abundant during the wet season. The highest density of bacteria recorded was 106 and, of actinomycetes, 105g dry soil. ...