Plant growth inhibitory activity of extracts of raw and treated pig slurry

Abstract

Strong acid extracts from raw and treated pig slurries were highly inhibitory to the germination and root growth of barley and wheat. While the activity of the extracts reflected the level of phenolic acids therein, the possibility of other substances contributing to this activity cannot be excluded. Tests with pure compounds showed that certain individual phenolic acids identified in pig slurries inhibited germination and root growth but at higher concentrations than previously reported. Of the treatment systems studied, aeration of pig slurry was the most effective in removing the inhibitory activity associated with extracts. Copyright © 1982 John Wiley & Sons, Ltd

Source or Periodical Title

Journal of the Science of Food and Agriculture

ISSN

225142

Page

1189-1196

Document Type

Article

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