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Performance of three Dicotyledon Species on Lead/Zinc Mine Spoil with Various Nitrogen Sources

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Author(s): Muhammad Anwer | T. McNeily | P.D. Putwain

Journal: Journal of Biological Sciences
ISSN 1727-3048

Volume: 1;
Issue: 9;
Start page: 793;
Date: 2001;
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Keywords: Mine spoil | nitrogen sources | single | split | doses | species

ABSTRACT
Rapid leaching of nitrogen fertilizers is a factor limiting the long term success of revegetation on the Trelogan mine spoil due to the physical structure of mine waste material, with its almost total lack of organic matter. A slow release nitrogen fertilizer was examined, in addition to fast release sources, to assess its performance. Single and split doses of conventional nitrogen fertilizers were also used to compare their effects. Shoot and root dry weight of Rumex acetosa was greater than control at a single and split application of NaNO3 and only root dry weight of Minuartia verna was improved at the single dose of NaNO3 and (NH4)2SO4. In contrast there was no effect of single and split doses of urea and NH4NO3 and the single application of slow release source (Golden-N) on the growth characters of Plantago lanceolata when compared to control. Split doses of conventional fertilizers were more effective than single doses.
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