Agriculture Reference
In-Depth Information
Werner, M.R. 1997. Soil quality characteristics during conversion to organic orchard manage-
ment. Applied Soil Ecology 5: 151-167.
Whalen, J.K., Parmalee, R.W. and Edwards, C.A. 1998. Population dynamics of earthworms
communities in corn agroecosystems receiving organic and inorganic fertiliser amend-
ments. Biology and Fertility of Soils 27: 400-407.
Wickramasingeh, L.P., Harris, S., Jones, G., Vaughan, N. 2003. Bat activity and species richness
on organic and conventional farms: impact of agricultural intensification. Journal of
Applied Ecology 40: 984-993.
Yardim, E.N. and Edwards, C.A. 2003. Effects of organic and synthetic fertilizer sources on
pest and predatory insects associated with tomatoes. Phytoparasitica 31(4): 324-329.
Yeates, G.W., Bardgett, R.D., Cook, R., Hobbs, P.J., Bowling, P.J., Potter, J.F. 1997. Faunal and
microbial diversity in three Welsh grassland soils under conventional and organic man-
agement regimes. Journal of Applied Ecology 34: 453-470.
Younie, D. and Watson, C.A. 1992. Soil nitrate-N levels in organically and intensively managed
grassland systems. Aspects of Applied Biology 30: 235-238.
Zarea, A., Koocheki, A., and Nasiri, M. 2000. Energy efficiency of conventional and ecological
cropping systems in different rotations. In: Alföldi, T., Lockeretz, W. and Niggli, U. (eds)
IFOAM 2000 - The World Grows Organic: Proceedings of 13th International IFOAM
Scientific Conference . Vdf Hochschulverlag, Zürich.
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