This article from horticulture week.com is awesome!
http://www.hortweek.com/research-shows-biochar-boosts-trees-resilience/arboriculture/article/1368108?bulletin=arboriculture-news&utm_medium=EMAIL&utm_campaign=eNews+Bulletin&utm_source=20151021&utm_content=www_hortweek_com_article__1
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