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Ecological effects of long-term methylparathion contamination on soil microflora
Pages: 48-50
Year: Issue:  4
Journal: Rural Eco-Environment

Keyword:  methylparathionlong-term contaminationsoil microorganismecological effect;
Abstract: Long-term effects of methylparathion contamination on soil microflora were investigated.Little difference in total counts of bacteria,actinomycetes and fungi was observed between the contaminated and the non-contaminated soil.Compared with the control,the contaminated soil was slightly lower in total count of azotobacters and denitrifying bacteria and significantly higher in those of ammonifying and ammonia-oxidizing and nitrifying bacteria.The respiratory intensity of the contaminated soil decreased by 29.93% while ammonification and nitrification increased significantly over that of control soil.The total DNA extracted from the contaminated soil and the control was (12.23±1.36)μg·g-1 and (13.01±(1.91))μg·g-1 dry soil,respectively.
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