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This work assessed populations of the anecic, deep burrowing earthworm Lumbricus terrestris on two recently established (3 years) and two long running (20–170 years) organic matter amended, conventionally managed arable field trials in SE England. Validated midden counts and DNA analyses were used to estimate L. terrestris populations and check species identity (>98% match, n=10). Population estimates...
The long-term effects of Ni, Zn+Ni, Cu, Zn+Cu and Zn on the nematode communities in soil treated with sewage sludge were studied in an agroecosystem. The soil was a sandy loam with 9% clay, 1.6-4.0% organic matter (OM) and pH 5.8-7.2. Sewage sludge, artificially enriched with four concentrations of each heavy metal or combinations was applied in 1982 and again in 1986 to some of the plots. Ni and...
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