See comments. On Wed, Nov 28, 2012 at 10:25 PM, Cecil Cook <[email protected]> wrote:
> Dear Paul Oliver, > > What do you think is going on to produce such a tremendous improvement in > the productivity of the biochar boosted plots? > The paper on biochar to the mustard greens has not yet be published. As soon as I get the link, I will send it to you. > Are we sure the soil, water conditions, and cultivation regimes were > otherwise identical save for the addition of 5 kg of rice hull biochar per > m2 to the experimental plot? > Yes, Dr. Thomas Reginald Preston does things in a thoroughly scientific manner. > > I did not understand the 25% weight gain for cattle. Is that because they > are feeding of biochar boosted pasture? > Read the biochar-to-cattle paper carefully. Dr. Ron Leng does an excellent job of trying to explain what is going on here. Dr. Preston and Dr. Ron Leng have been conducting experiments<http://www.lrrd.org/public-lrrd/proofs/lrrd2411/leng24199.htm>in Laos wherein 0.62% rice hull biochar (DM basis) was incorporated into cattle feed as a means of reducing enteric methane emissions and enhancing feed conversion. > > If these results are factual and can be replicated both in Vietnam and > elsewhere in the world, maybe rice hull biochar provides exactly what the > soil in that area of Vietnam needs to improve its fertility. > > Dr. Preston does incredible work in the field of sustainable agriculture. His latest work with biochar is truly amazing. > What is the soil like where this test was carried out? Hopefully the > researcher has done baseline and post biochar soil ferility tests. > ** > In service, > > Cecil Cook > South Africa > > ** > > On Wed, Nov 28, 2012 at 1:20 AM, Paul Olivier <[email protected]>wrote: > >> Dr. Reg Preston did another study with rice hull biochar from my gasifier. >> He applied 5 kg of rice hull biochar per m2 to a plot of mustard greens. >> To a second plot of mustard greens he applied no biochar. >> This second plot received the same water, fertilizer and management as >> the first. >> The plot with biochar had a yield 4 times greater than the plot without >> biochar. >> >> With cattle we see a 25% increase in growth. >> With mustard greens we see a 400% increase in growth. >> Rice hull biochar produced in a top-lit updraft gasifier appears to be >> quite valuable. >> >> Thanks. >> -- >> Paul A. Olivier PhD >> 27C Pham Hong Thai Street >> Dalat >> Vietnam >> >> Louisiana telephone: 1-337-447-4124 (rings Vietnam) >> Mobile: 090-694-1573 (in Vietnam) >> Skype address: Xpolivier >> http://www.esrla.com/ >> >> _______________________________________________ >> Stoves mailing list >> >> to Send a Message to the list, use the email address >> [email protected] >> >> 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/ >> >> >> > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > 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/ > > > -- Paul A. Olivier PhD 27C Pham Hong Thai Street Dalat Vietnam Louisiana telephone: 1-337-447-4124 (rings Vietnam) Mobile: 090-694-1573 (in Vietnam) Skype address: Xpolivier http://www.esrla.com/
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