Dear Crispin Here is an articles on Manure Tea: http://www.ask.com/questions-about/Manure-Tea
I understand that the major beneficial constituents of Manure Tea are: * Protein, for direct feeding of soil micro-organisms. * Nitrates * Hormones beneficial to plant growth * Trace elements. * Potassium It also contains sodium salts, which may aggravate a high sodium condition in soils in arid locations. I understand that it contains relatively low calcium and phosphorous, in that they co-precipitate and would report to the washed dung. Best wishes, Kevin ----- Original Message ----- From: Crispin Pemberton-Pigott To: 'Discussion of biomass cooking stoves' Sent: Tuesday, December 07, 2010 9:42 AM Subject: Re: [Stoves] Drawing down the dung pile Dear AD I think we much ask Frank to comment on this. Frank can you test calorific value? If not I will try to get the power station in UB to test for HHV, ash, volatiles and report this week. Kevin - what washes out? It is probably not a matter of fuel conservation as much as making a workable device. It would be nice to use as little fuel as possible (fertilizer) but far more important to use wasted fuel for a useful purpose. Frank, what is the CN content of washed v.s. unwashed dung? Thanks Crispin Dear Crispin, dung cakes are regularly used as fuel even in India. In areas where the rainfall is scanty, and there are no trees, dung is used as the main cooking fuel. In the high Himalaya, above the tree line, yak dung is the only fuel available to the locals. The ash content of dung is normally very high. In the case of animals eating mainly grass, the ash would consist mainly of silica. I have heard of a of filter press, which can remove the water from the dung along with the dissolved minerals. This would leave a product with a higher calorific value. It can be briquetted and sold as a standard fuel. Yours A.D.Karve On Tue, Dec 7, 2010 at 12:47 AM, Crispin Pemberton-Pigott <[email protected]> wrote: ------------------------------------------------------------------------------ _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address Stoves mailing list to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://www.bioenergylists.org/ [email protected] http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org ------------------------------------------------------------------------------ No virus found in this message. Checked by AVG - www.avg.com Version: 10.0.1170 / Virus Database: 426/3302 - Release Date: 12/07/10
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