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Subject: Healthy soil and sustainable growing
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- From: Soilsecrets@aol.com
- To: livingontheland@lists.ibiblio.org
- Subject: [Livingontheland] life cycle of mycorrhizae
- Date: Wed, 26 Apr 2006 20:12:19 EDT
There's a lot of mystery to the Mycorrhizal relationship that plants have,
resulting in many misconceptions and misinformation. The Pacific Northwest
Rainforest is a cool forest that favors fungi for the decomposition of organic
matter, which is slow process. Bacterial Humification is still part of the
system but is not as active as the fungal decomposition. Consequently, the
total amount of humus or Humic substances that accumulate in the Northwest
forest floor is less per 100,000 calories of biomass recycling than will be
found in the Great Plains Tall Grass Prairie. I other words if you have
exactly the same amount of organic biomass when comparing the calorie value of
the biomass, the hot grassland Ecotone will favor a bacterial Humification
resulting in more humus than the NW Rain Forest. Therefore the large
fungal network that Marty speaks of are actually more likely to be Saprophytic
fungi involved with the decomposition of woody lignin parts of dead organic
matter and can be seen by the naked eye during certain times of the year.
The mycorrhizal fungi for the most part are very small and not so visible and
are more involved with feeding their host plant water and mineral
nutrients. Mycorrhizae feeding tubes or filaments do not venture far from
the point of articulation with the host plant roots.
When soils are destroyed by construction, fire or other events the
mycorrhizae will return as do the native plants, but the process is very slow.
For that reason, viable inoculation products that have been studied by
universities have found consistent benefits by using these products in
landscapes, golf courses, tree farms and even on Organic Farms that have been
well managed and organic for decades. We also see the same thing happen
when we put a pure biologically viable humus into a Pacific Northwest Soil
that you would think is already rich in humus, huge benefits are derived.
Michael M. Melendrez
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[Livingontheland] life cycle of mycorrhizae,
Soilsecrets, 04/26/2006
- Re: [Livingontheland] life cycle of mycorrhizae, Kathy Moore, 04/27/2006
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