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/
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