[soilhack-announce] Humus doesn't exist?

[Mags Hall]

The meeting is actually Tuesday 2nd, Clem! If anyone would like to join in,
in person in Edinburgh or via Skype, email me directly on
mags at commongoodfood.org and I can give you more details.

Mags

On Thu, Jul 28, 2016 at 11:17 PM, Niels <mudguard at gmail.com> wrote:

> I am active.
> Would be interested in attending.
>
> Nice one
> N
>
> On 28 Jul 2016 2:57 p.m., "Clem Sandison" <clem.sandison at gmail.com> wrote:
>
>> Hi Adam
>>
>> Not sure if you received my previous email about this.  Just wondering if
>> you'd be interested in taking part in Farm Hack Scotland 1st & 2nd Oct at
>> Tombreck Farm.  We now have some funding to cover travel and expenses for
>> all workshop leaders.
>>
>> Info and tickets here:
>> http://www.commongoodfood.org/whats-on/farm-hack-scotland
>>
>> We're keen to have some soil hacks on the go.  Would you or anyone else
>> who is active in the Soil Hack network be interested in coming up that
>> weekend?  It would be great to have a session on Actively Aerated Compost
>> teas and/or biochar kilns, or we could have a chat about other ideas.
>>
>> We're making some decisions about the programme next Monday night so
>> would be good to know if you are free.
>>
>> Cheers
>>
>> Clem
>>
>> *Clementine Sandison*
>> *Artist, food activist and **member of Open Jar Collective*
>>
>> Tel: +44 (0)7971027963
>> Email: clem.sandison at gmail.com
>> Web: www.clementinesandison.co.uk
>> Twitter: @clemsandison
>>
>> On 12 May 2016 at 14:43, Adam Ormes Court <ormus23 at gmail.com> wrote:
>>
>>> I usually wouldn't post this sort of thing on here but thought this was
>>> a sufficiently monumental piece of information to merit doing so...
>>>
>>> From a post by Toby Hemenway on FedBook:
>>>
>>> Some amazing news on the soil science front. Humus doesn't exist.
>>> Several recent articles are showing that humic and fulvic acids and many of
>>> the other humic components of soil are artifacts of the alkaline
>>> treatment that is used to measure humus content, and don't, in fact, exist
>>> in untreated soil. When OM is measured using non-destructive methods such
>>> as NMR spectroscopy, no humic compounds can be found. Organic matter does
>>> not degrade into "stable" humic components, it simply decomposes into a
>>> continuum of smaller and smaller carbon compounds. There is constant, slow
>>> turnover of carbon in soils, not a semi-permanent trapping of carbon into
>>> "humus." Humus, meaning a stable form of carbon visualized by alkaline
>>> extraction, seems not to exist. It's an artifact of the lab method. This is
>>> kind of blow-away news for those of us who teach soil science--and it's a
>>> good lesson on how the methods we use determines what we see. Teachers,
>>> start revising how you teach soils, and stop talking about humus.
>>>
>>> Most of the articles on this are behind journal paywalls, but some of
>>> the abstracts are available. One article is Lehmann, J.; Kleber, M.
>>> (2015-12-03), "The contentious nature of soil organic matter", Nature
>>> 528:60-68. There is a short video based on that article linked below.
>>>
>>> https://www.youtube.com/watch?v=-n6emCNEmKg
>>> --
>>> *In order to change an existing paradigm you do not struggle to try and
>>> change the problematic model /* *You create a new model and make the
>>> old one obsolete /* *That, in essence, is the higher service to which
>>> we are all being called. //* Buckminster Fuller
>>>
>>>
>>>
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>>>
>>>
>>
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-- 
Mags Hall



Tel: 07562 604140
Twitter @MagsCGF
www.commongoodfood.org
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Common Good Food is a Scottish Charitable Incorporated Organisation (SCIO),
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