Hi We have seen that the wood tends to bind the nitrogen and reduce it bio-availability. This is in New Zealand were most sawdust is Pinus radiata which is chemically quite different from most other pines. Whether this will alter the binding is not known ( by me anyway).
Chris Hearn CPG New Zealand Ltd T +64 3 470 7814 | F +64 3 479 2249 | M +64 21 912 096 Level 1, John Wickliffe House, 265-269 Princes Street, PO Box 910, Dunedin 9054, New Zealand cpg-global.com<http://www.cpg-global.com> P Please consider the environment before printing this e-mail. The information contained in this email communication may be confidential. You should only disclose, re-transmit, copy, distribute, act in reliance on or commercialise the information if you are authorised to do so. Any views expressed in this email communication are those of the individual sender, except where the sender specifically states them to be the views of CPG New Zealand Ltd. CPG New Zealand Ltd does not represent, warrant or guarantee that the integrity of this communication has been maintained nor that the communication is free of errors, virus or interference. From: digestion-boun...@lists.bioenergylists.org [mailto:digestion-boun...@lists.bioenergylists.org] On Behalf Of Matt Lorig Sent: Sunday, 4 December 2011 10:23 a.m. To: digest...@bioenergylists.org Subject: Re: [Digestion] Digestate comparison to liquid worm castings (Alexander Eaton) Hello everyone, I want to get a dry fertilizer product that I can bag and hopefully sell. I have been planning to take my liquid digestate and add sawdust or something similar to dry it and then have the worms eat that. I've read somewhere that if I was to filter and dry the digestate I would lose a lot of N with the water. I know I would lower the Nitrogen percent by adding the sawdust but would I gain by not losing the Nitrogen with the water? Also seems I would improve the fertilizer by having worm casts and more microorganisms from the worms gut. I'm about ready to actually start this but since the subject has come up again I thought I should ask the list for comments. It would be nice to know before I start if I'm wasting my time. Matt Lorig mattlo...@yahoo.com<mailto:mattlo...@yahoo.com>
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