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Effects of cultivation and DDT on earthworm activity in a forest soil in the sub-humid tropics.

Published online: 01 Jan 1980

Authors: Cook, A. G. & Critchley, B. R. & Critchley, U. & Perfect, T. J. & Yeadon, R.

Content type: Journal article

Journal title: Journal of Applied Ecology

The effects of bush clearing, cultivation and crop protection with DDT on surface casting activity and populations of earthworms were monitored over a...

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The effect of DDT contamination on the productivity of a cultivated forest soil in the sub-humid tropics.

Published online: 01 Jan 1980

Authors: Perfect, T. J. & Cook, A. G. & Critchley, B. R. & Critchley, U. & Davies, A. L. & Swift, M. J. & Russell-Smith, A. & Yeadon, R.

Content type: Journal article

Journal title: Journal of Applied Ecology

Seed yields of cowpea (Vigna unguiculata) were assessed in each of two annual growing seasons over the 4-year period 1973 to 1976 in experimental plot...

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