Effects of addition of varying levels of copper,as oxide or phosphate,on nitrogen mineralisation and nitrification during incubation of a slightly calcareous soil receiving dried blood |
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Authors: | M S I Quraishi A H Cornfield |
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Institution: | (1) Department of Chemistry, Imperial College of Science and Technology, S.W.7 London |
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Abstract: | Summary The addition of 100, 1000 and 10,000 ppm copper, as oxide or hydrogen phosphate, stimulated nitrogen mineralisation and nitrification
during incubation of a sandy loam (0.5% calcium carbonate) treated with 200 ppm N as dried blood. The maximum effects occurred
with 1000 ppm added copper and were similar with both sources of added copper. EDTA-extractable copper was higher where copper
hydrogen phosphate than where copper oxide had been added. |
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