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Interaction between phenolic substances and microbial polysaccharides in soil aggregation
Journal article   Peer reviewed

Interaction between phenolic substances and microbial polysaccharides in soil aggregation

E Griffiths and Richard G Burns
Plant and Soil, Vol.36(1-3), pp.599-612
1972
url
https://doi.org/10.1007/BF01373510View
Published Version

Abstract

soil aggregation
The stability of synthetic soil aggregates containing the extracellular polysaccharide from Lipomyces starkeyi is increased and is more persistant when aggregates are infiltrated with either tannic acid or the products from decomposing herbage. Mixing tannic acid with polysaccharide during the preparation of aggregates had no effect. In a field experiment, addition of glucose produced a rapid improvement in soil aggregation which was considered to be due to the formation of microbial polysaccharides. The effect, however, had virtually disappeared after six months. By contrast glucose-treated plots receiving tannic acid 28 and 42 days after the glucose had been applied showed no sign of diminished aggregation at the end of the experiment. © 1972 Martinus Nijhoff.

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