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Plant growth inhibitory activity of extracts of raw and treated pig slurry
Author(s) -
Ramirez Maureen E. A.,
Garraway James L.
Publication year - 1982
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740331204
Subject(s) - slurry , germination , aeration , chemistry , inhibitory postsynaptic potential , raw material , food science , biology , chromatography , botany , organic chemistry , neuroscience , materials science , composite material
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.