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KMID : 0903519880310010079
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1988 Volume.31 No. 1 p.79 ~ p.85
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Effects of Herbicides on Enzyme Activities in Soil Environment
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Abstract
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The effects of herbicides on biochemical processes in soil environment were studied by examining the effects of the chemical structure of each herbicides on soil enzyme activities and pesticides residue revealed when soil treated with urea was incubated at 28±1℃ for 56 days. The inhibition effects of herbicides on soil enzyme activites in soil decreased in the order of urea group$gt;dinoseb$gt;propanil$gt;diphenyl eter group$gt;acid amide group for urease, and dinoseb$gt;urea group$gt;diphenyl ether group$gt;acid amide group for L-glutaminase and protease, dinoseb$gt;diphenyl ether group$gt;urea group$gt;acid amide group for phosphatase. Herbicides inhibited the activities of soil enzyme in the early stage of treatment but increased the activities of urease, L-glutaminase and protease in the late stage. When herbicides were treated in soil together with urea the degradation of insecticides was accelerated.
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