[Terrapreta] volatile matter and char

[Edward Someus]

Dr. Ogawa's view is correct, but need to be added, that the TP effect is
highly depending on soil and climate conditions. There is a difference in
effects in warmer climate than continental. Another issue is that in high
productive agriculture not only one parameter is considered, but rather 
complex inputs. 


   
 Sincerely yours: Edward Someus (environmental engineer)
Terra Humana Clean Tech Ltd. (ISO 9001/ISO 14001)
3R Environmental Technologies Ltd. 
ADDRESS: H-1222 Budapest, Szechenyi 59, Hungary
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-------Original Message-------
 
From: Richard Haard
Date: 2007.12.21. 9:15:23
To: Terrapreta
Subject: Re: [Terrapreta] volatile matter and char
 
I keep going back to Dr. Ogawa's view that charcoal in the soil is a
selective enrichment for beneficial organisms in that it excludes
saprophytic organisms (ie no fermentable carbon source) and  otherwise
improves soils much like organic matter. In the context of volatile matter
here is the vm he cited on charcoal he claims has the following effects


Rich




Charcoal Characteristics and Uses Characteristics and Function of Charcoal
From: Makoto Ogawa, Effects of Soil Microbial Fertility by Charcoal in Soil
1.Porous substance with high water and air holding capacity; Suitable
habitat for some microbes and plant growth, good material for soil amendment
 absorption of chemicals and humidity control
2.High alkalinity; Neutralization of acidic soil and improvement of chemical
components of soil and selection of microorganisms
3.Non organic matter ; Exclusion of saprophytes and propagation of
autotrophic and symbiotic microorganisms, free living nitrogen fixing
bacteria, root nodule bacteria, Frankia and some mycorrhizal fungi
4.Low mineral content ; “Charcoal has no role as a fertilizer”
Composition of bark charcoal %
Carbon:77.58,
Volatile matter:12.92,
Ash: 9.50
Mineral content of ash %
SiO2:36.5
Al2O3:10.9
CaO:19.2
K2O:1.1
Na2O3:5.35
Fe2O3:7.5
MgO:10.3
P2O5:1.7
# Air supply by charcoal induces the activation of soil microbes and CO2
emission temporally. Small amounts of chemical fertilizers or organic matter
should be mixed with charcoal in agricultural use.
soil application of charcoal to provide a microhabitat for AM fungi to
colonize and survive.
 
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