This is the title of an article by Dr Saman Dharmakeerthi in the July-August issue of Rubber Asia magazine. The article is available online here...
http://issuu.com/dhanampublications/docs/rubber-asia-july-august2013/69?e=3386873/4174718
There has been research activity in Sri Lanka for some time around the tea and rubber industries. Dr Dharmakeerthi hopes that this will lead to a local biochar interest group in the near future.
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