Exerpt from: Secrets of the Soil (wonderful book!)
Mark & Victoria
animaux at ix.netcom.com
Thu Apr 10 09:03:40 EST 1997
In <E8DB6z.5qH at cix.compulink.co.uk> ecoli at cix.compulink.co.uk ("K N and
P J Harris") writes:
>The humus in soil IS important but hardly ever as a source of plant
>nutrients itself. It has great significance for nutrient retention
>of which is in an inorganic form), for water retention and for soil
>structure but the great age of most humus (say 1000 years) means that
>its turnover rate is too small to yield nutrients.
How do you explain forests which are never artificially fertilized, nor
do they receive anything other than the rotting bodies, (which are
turned into humus by the microbial activity) of animals and plants?
Forests which live, say, thousands of years...
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