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Old 01-07-2013, 11:33 AM
Skipster Skipster is offline
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Join Date: Dec 2010
Location: Billings, MT
Posts: 680
Quote:
Originally Posted by Smallaxe View Post
Here is a quick and easy to understand statement about How Microbrial Mineralization Works...

http://organiclifestyles.tamu.edu/so...robeindex.html
In addition to their role in cementing soil aggregates mentioned above, soil microbes are of paramount importance in cycling nutrients such as carbon (C), nitrogen (N), phosphorus (P), and sulfur (S). Not only do they control the forms of these elements [e.g. specialized soil bacteria convert ammonium N (NH4+) to nitrate N (NO3-)], they can regulate the quantities of N available to plants. This is especially critical in systems relying on organic fertilizers. It is only through the actions of soil microbes that the nutrients in organic fertilizers are liberated for plants and use by other microbes. Soil microbiologists call this process mineralization [the conversion of organic complexes of the elements to their inorganic forms, e.g., conversion of proteins to carbon dioxide (CO2) ammonium (NH4+) and sulfate (SO4=)]. It is perhaps the single-most important function of soil microbes as it recycles nutrients tied up in organic materials back into forms useable by plants and other microbes. In fact, the so-called Principle of Microbial Infallibility (popularized by Dr. Martin Alexander of Cornell University) states that for every naturally occurring organic compound there is a microbe or enzyme system that can degrade it. Note that this applies to naturally occurring compounds. ... It is through the process of mineralization that crop residues, grass clippings, leaves, organic wastes, etc., are decomposed and converted to forms useable for plant growth as well as converted to stable soil organic matter called humus. Herein lies another important role for the larger soil animals like earthworms. The large organisms function as grinders in that they reduce the particle size of organic residues making them more accessible and decomposable by the soil microbes. The soil microbial population also further decomposes the waste products of the larger animals. Thus, the activities of different groups of soil organisms are linked in complex "food webs".

So is Sumagreen microbes, gobbling up so much thatch the N is making the grass grow beyond normal bounds
OR
Is there some other ingredient that is causing the excessive top growth???

Something isn't right about this discussion and no one is able to acknowledge the 'elephant in the room'...
I wonder what your take is about the 'elephant in the room'?

From my chair, the 'elephant in the room' is the idea that microbial or organic additions to the soil can positively impact the growing environment. The website you linked gives some great examples.

In the article, Dr. David Zuberer (whose video presentation I've linked on this board previously) writes:

"adding small amounts of organic materials like molasses to soils cannot do this. Soil microbes quickly use up substrates like these and little if any lasting effects are observed."

"Probably the most significant thing a turfgrass manger can do to sustain soil microbial populations is to maintain a vigorous, healthy turf. We know that grasslands are excellent microbial habitats and they can accumulate substantial microbial biomass. The same is true of well-managed turfgrass environments."

Adding to that, Dr. Zuberer also points out the failures (and their reasons) of soil innoculation with various microbes.

No company selling such products has been able to produce reproducible peer-reviewed research showign that their products perform as claimed. They claim to defy science. This is why I an skeptical about their efficacy.
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