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<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Wayne,</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">My first point of call for any fertiliser recommendations is ‘FERTILISER RECOMMENDATIONS’  otherwise known as RB209.  If there was an equivalent to the James
 1<sup>st</sup> edition of the Bible in the world of agriculture and horticulture then this is it!   My take on digestate is that the form of nitrogen in digestate is mineralised ammonium  (NH4) and ammonium salts plus the slow release nitrogen from the decay
 of bacterial protein in the strict anaerobes (mainly methanogens).  Bottom line, compared to normal farm manure total nitrogen, the nitrogen in digestate doubles in value for the crop grown in the year of spreading.  Put another way, if manure has a fertiliser
 value of £1000 before digestion, after digestion it is worth £2000…. Simple in the UK and northern climates!  Actually it gets better.  From memory trials in Egypt in sandy soils crops were compared from digested and undigested manures for decades.   (Halwagi
 et al).   The digestate crop yield was 15% better than the undigested manure crop yield after 15 years.  In other words the soil was improving as a growing medium even in hot sandy soils.  </span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Ref. for RB209 fertiliser recommendations:</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"><a href="http://www.defra.gov.uk/publications/files/rb209-fertiliser-manual-110412.pdf">http://www.defra.gov.uk/publications/files/rb209-fertiliser-manual-110412.pdf</a></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">I hope this helps.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#000071">Best Regards</span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#000071"> </span></b></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#000071">Les Gornall</span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Process Consultant</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">PROjEN BioEnergy</span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Mob:     07831 728 418</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Email:   
</span><u><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#002060"><a href="mailto:les.gornall@projen.co.uk"><span style="color:#002060">les.gornall@projen.co.uk</span></a></span></u></p>
<p class="MsoNormal"><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#002060">PROjEN House, Wellfield, Preston Brook, Cheshire, WA7 3AZ</span><span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt; font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt; font-family:"Tahoma","sans-serif""> digestion-bounces@lists.bioenergylists.org [mailto:digestion-bounces@lists.bioenergylists.org]
<b>On Behalf Of </b>Wayne Zschech<br>
<b>Sent:</b> 07 December 2011 05:56<br>
<b>To:</b> digestion@lists.bioenergylists.org<br>
<b>Subject:</b> [Digestion] dosing for crops</span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">G'day All!<br>
<br>
Thank you for you input and information about the liquid digestate vs worm castings.<br>
<br>
Our biofertilizer experiment with a local carrot farmer will be commensing this next growing season.  We both understand that it will take a couple years to judge just how good our fertilizer is.  I would really appreciate some input as to how much, when and
 how the liquid digestate should be applied.  Obviously carrots is the current crop in question but I would like to have information for other crops too.  I wouldn't like to get off to a bad start by killing off his carrots in the first experiment. Also we
 may need to experiment in combinations of our fertilizer and chemical fertilizer.  I do understand that different inputs create a digestate of differing qualities. My digester will be running exclusively on restaurant kitchen/food waste.  Also does the storage
 method and length of storage have an effect on fertilizer qualities?  <br>
<br>
Blessings,<br>
Wayne       <br>
<br>
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