[Digestion] Bio Slurry

[Alexander Eaton]

Kyle,

We have found that slowly building a local market is a stronger alternative
than thinking about larger transport distances or speciality items.  These
can have a role, but ultimately having the slurry remain at a price that
allows it to replace chemical fertilizers and be used in bulk locally is
your best hope for using the value of the biofertilizer to drive the biogas
market.  In Mexico, that is achieved through slowly increasing
the hectares under cultivation with the "biol" and carefully documenting
the results.

As David Fulford has pointed out, there are nuances to the use of the biol,
and some combinations or dosis, crop and soil types can actually reduce
yields if the is H2S present.  However, we have really good results with
direct application, and our average application rates are about 10k liters
per HA over three or four dosis periods.  We are complimenting early
applications with small amounts of urrea, which is really common in Mexico,
but the overall chemical fertilizer reductions are still about 90%.  Given
that the biol is produced all year round, it is important to take an "all
of the above" approach: compost piles to receive excess biol, adding to
worm castings (we have limited success with adding it to the worms),
storage, and a wide variety of uses from trees to flowers to crops
and forages.

We have started a "Biol Guide" that we have created out of
local experiences   I suggest you start doing the same, documenting results
in both test plots and from the experiences of local farmers.  Always add
the disclaimer that most biols, soils, and crop combinations will be
relatively unique.  This is long term chance we are pushing, and will
require patience, good documentation, promotion, and leadership.

Cheers

Alex


On Sun, May 5, 2013 at 7:37 AM, Anand Karve <adkarve at gmail.com> wrote:

> The methanogenic archaea need oxygen just like other living beings, but
> having evolved under anaerobic conditions, they developed the trick of
> getting their oxygen from their substrate rather than from the atmosphere.
> Thus they convert nitrates and sulphates into ammonia and hydrogen
> sulphide, and acetic acid, a carbohydrate, into methane, a hydrocarbon.
> When the slurry is applied to the soil, the soil microbes oxidise the
> ammonia into nitrate. The energy released in this process is used by the
> microbes for their own metabolism.and the nitrates are used by the plants.
> Yours
> A.D.Karve
>
> On Wed, Apr 17, 2013 at 3:16 PM, PETER ALLISON <pm.allison at bigpond.com>wrote:
>
>> **
>> Re; Bio Slurry.
>> Thank goodness bio-gas chatter has now included bio-slurry as a
>> legitimate by-product of the process.
>> I have always maintained bio-gas was but a bonus of the exercise rather
>> than the focus.
>> Bio-slurry contains all the elements, nutrients, colloids, chemicals,
>> hormones and more produced by plants minus the sustenance requirements of
>> the animals fed upon this plant matter.
>> Introduction of the resultant manure into the bio-conversion process
>> takes plant matter to its finest conclusion..
>> All the requirements of plants are contained within this matter outside
>> of sunlight and CO2.
>> Plants are not concerned about being cannibalistic. They will consume
>> their relatives and friends as long as they are in a form suited to
>> absorption by plants.
>> They enjoy colloidal nutrient. There is plenty of this material in spent
>> slurry. There is also plenty of material ideally suited to soil feeding and
>> rehabilitation.
>> The simple solution to bio-slurry is extraction of the colloids for
>> foliar feeding and then pelletize the remainder for broadcasting
>> operations.
>> The pelletized material can be formulated to correct deficiencies in
>> either soil or crop or both.
>> Peter Allison
>>
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>> for more information about digestion, see
>> Beginner's Guide to Biogas
>> http://www.adelaide.edu.au/biogas/
>> and the Biogas Wiki http://biogas.wikispaces.com/
>>
>>
>>
>
>
> --
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
>
>
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> for more information about digestion, see
> Beginner's Guide to Biogas
> http://www.adelaide.edu.au/biogas/
> and the Biogas Wiki http://biogas.wikispaces.com/
>
>
>


-- 
Alexander Eaton
Sistema Biobolsa
IRRI-Mexico
RedBioLAC

Mex cel: (55) 11522786
US cel: 970 275 4505

alex at irrimexico.org
alex at sistemabiobolsa.com

sistemabiobolsa.com
www.irrimexico.org
www.redbiolac.org
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