[Terrapreta] Fwd: compost and charcoal

[Gerald Van Koeverden]

Charcoal is Not a Good Soil Amendment in Colorado

from      http://www.coopext.colostate.edu/4dmg/Soil/charcoal.htm




On 24-Nov-07, at 10:27 PM, Gerald Van Koeverden wrote:

>
>>
>> Tom,
>>
>> Thanks for that link about the enhancing effect of charcoal on
>> compost by Japanese researchers.
>>
>> Looks like some revision of the accepted methods of making compost
>> might be in order.  The first site I went to on making compost
>> specifically advises avoiding charcoal in the compost pile!!
>>
>> http://www.tceq.state.tx.us/assets/public/assistance/education/
>> waste/composting.pdf
>>
>> The next two advised against using any charcoal ash.  By not saying
>> anything positive about using charcoal itself, the message conveyed
>> is negative towards using charcoal at all as a composting component.
>>
>> Gerrit
>>
>> On 24-Nov-07, at 6:33 PM, Tom Miles wrote:
>>
>>> See the presentation on charcoal mixed compost at the IAI
>>> conference by
>>> Shuji Yoshizawa, Satoko Tanaka, Michio Ohata or
>>> Meisei University and Shigeru Mineki, Tokyo University of Science.
>>>
>>> http://www.biochar-international.org/images/Yoshizawa_-
>>> _Charcoal_Composting_
>>> of_Rice_Bran_Effect_on_Microorganisms.pdf
>>>
>>> One slide:
>>> "Composting from mixture of charcoal and biomass waste (Charcoal
>>> Mixed
>>> Compost, CMC)
>>> Composts made from garbage generated by homes, restaurants and food
>>> industries and livestock
>>> waste, and its utilization is receiving attention from the
>>> viewpoint of
>>> recycle of biomass wastes.
>>>
>>> As wood and bamboo have pores which are the size that are suitable
>>> for
>>> microorganisms to support, by
>>> adding the charcoal from the beginning of composting, the
>>> proliferation of
>>> microorganisms will be enhanced."
>>>
>>> Their results were positive.
>>>
>>> Tom
>>>
>>>
>>>> -----Original Message-----
>>>> From: terrapreta-bounces at bioenergylists.org [mailto:terrapreta-
>>>> bounces at bioenergylists.org] On Behalf Of Gerald Van Koeverden
>>>> Sent: Saturday, November 24, 2007 10:42 AM
>>>> To: terrapreta preta
>>>> Subject: [Terrapreta] compost and charcoal
>>>>
>>>> We've had a lot of talk about the cost-benefit of applying charcoal
>>>> to large acreages of land.  And also about using compost or
>>>> manure to
>>>> enrich charcoal before applying it.
>>>>
>>>> What about adding charcoal to the compost pile at the beginning of
>>>> the process?  Has anybody researched the value of adding  
>>>> charcoal to
>>>> the biomass right at the beginning?  A lot of ammonia is  
>>>> released to
>>>> the atmosphere during composting;  would charcoal act as a  
>>>> sponge to
>>>> soak it up and hold it, along with mineral nutrients which are
>>>> easily
>>>> susceptible to leaching?  In effect, if this is true, charcoal  
>>>> fines
>>>> as part of the composting process would significantly add to the
>>>> potential nutrient value of that compost.
>>>>
>>>> gerrit
>>>>
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>>>
>>>
>>
>
>
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