Key points are not available for this paper at this time.
G. W. Yeates, R. D. Bardgett, R. Cook, P. J. Hobbs, P. J. Bowling, J. F. Potter, Faunal and Microbial Diversity in Three Welsh Grassland Soils Under Conventional and Organic Management Regimes, Journal of Applied Ecology, Vol. 34, No. 2 (Apr., 1997), pp. 453-470
Yeates et al. (Tue,) studied this question.