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    Chapter

    Nitrogen uptake by cover crops at 7 sites in the UK: 1990–1993

    An experiment to compare the performance of a range of cover crop species at 7 sites in the UK was established in the autumn of 1990. At each site treatments included 3 sowing dates (late August, mid-September...

    R. Harrison, D. B. Davies, S. Peel in Progress in Nitrogen Cycling Studies (1996)

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    Chapter

    Influence of iron-limited and excess continuous culture on the virulence properties of Neisseria gonorrhoeae

    Iron-limited growth of non-piliated gonococci resulted in the selection of 100% piliated bacteria. Iron-limited gonococci were extremely virulent in the guinea pig subcutaneous chamber model and inocula of eve...

    C. W. Keevil, D. B. Davies, B. J. Spillane… in Gonococci and Meningococci (1988)